SERVICE MANUAL - Reptips

70FW-53E
SERVICE MANUAL
SE0070FW53E00
Issued: 01 August 2002
DA-50W CHASSIS
PAL B/G I / SECAM L L’ B/G D/K SYSTEM COLOUR TELEVISION
MODEL
SHARP
70FW-53EE/ENL/ECG/I/SE
In the interests of user safety (required by safety
regulations in some countries) the set should restored
to its original condition and only parts identical to
those specified should be used.
CONTENTS
ELECTRICAL SPECIFICATIONS.....................3
IMPORTANT SERVICING NOTES...................4
ADJUSTMENT PROCEDURES........................5
PRINTED WIRING BOARDS..........................10
COMPONENT LOCATION TABLES................17
SCHEMATIC DIAGRAMS................................24
BLOCK DIAGRAM...........................................34
PARTS LISTING..............................................35
STEREO LED FLASHING CODES.................45
PACKING OF THE SET...................................46
SHARP CORPORATION
1
This document has been published to
be used for after sales service only.

70FW-53E
SERVICE MANUAL UPDATE LOG SHEET
Technical Report No.
Technical Bulletin No.
Cause / Solution
Part No.
Page No.
Application
Data /Serial No.
Use this page to keep any special servicing information as Technical Report (Bulletin), Technical Information, etc.
If only part number changes are required, just change part number directly the part number in the Parts Listing Section.
If you need more information, please refer to the Technical Report (Bulletin).
2

70FW-53E
ELECTRICAL SPECIFICATIONS
•Power Input ..................... 220V-240 Volts AC 50Hz
•Power Consumption
Normal Operation ..................................155W
(Method IEC 60107)
Stand-by Operation ....................................1W
•Audio Power Output Rating (MPO) / Impedance
Internal Left Speaker ....................... 10W, 7Ω
Internal Right Speaker ..................... 10W, 7Ω
Internal Centre Speaker .............. 10W, 7Ω
•Speakers
Left / Right ........................................ 4 x 10cm
Centre .............................................. 6 x 13cm
•Convergence
Static (Centre)
between any two colours......................0.08cm
Dynamic after static equals zero
Within 10cm (4”) circle.........................0.12cm
10-28cm (4-10”) circle..........................0.20cm
Everywhere else...................................0.28cm
•Focus ....................... High Bi-Potential Electrostatic
•Sweep Deflection ...................................... Magnetic
•Picture Intermediate frequency
L’..................................................33.9MHz
L, B/G, D/K,I................................38.9MHz
•Sound Carrier Trap
L’..................................................40.4MHz
L, D/K...........................................32.4MHz
B/G..............................................33.4MHz
I....................................................32.9MHz
•Adjacent Sound Carrier Trap
L’..........................................................32.4MHz
L, D/K, B/G..................................40.4MHz
I....................................................40.9MHz
•Adjacent Picture Carrier Trap
L’..........................................................41.9MHz
L, D/K,I.........................................30.9MHz
B/G..............................................31.9MHz
•Aerial Input Impedance
VHF/UHF ................. 75 ohm Unbalanced
•Tuning Ranges.......45.75MHz thru 855.25 MHz
VHF: IR A~J / S1~S41 CH (HIPERBAND)
E2~E12 / F2~F10
UHF: E21~E69 CH, I21~I69 CH
CATV Special Channels
•White Level
Set brightness control to get total picture tube cathode current of 600 µA under no signal condition.
Maximum necessary correction of each picture tube cathode current to get 8550 degrees K+1 MPCD.
Screen temperature should not exceed 15% of its original value.
X=0.290 ± 0.015 Y=0.300 ± 0.015
Specifications are subject to change without prior notice.
EN 61000-3-2
In order to comply with the European Norm 61000-3-2 regarding Electromagnetic compatibility (EMC),
it has been included mainly, in the PFC Circuit (Power Filter Correction), on every TV set manufactured
from January 2001.
On TV set manufactured before the above date (Serial Number 800929 for 70FW-53E or previous),
this modification is not required.
WARNING
Part of this chassis is not isolated from the mains supply. When carrying out any servicing work,
ensure that an isolation transformer is connected in the mains supply.
To prevent electric shock, do not remove the cover unless you are qualified to do so. Refer servicing
work to a qualified engineer.
3

70FW-53E
IMPORTANT SERVICING NOTES
Only qualified service personnel are allowed to carry out maintenance and repair of this receiver.
SERVICING OF HIGH VOLTAGE SYSTEM AND CRT
It is important that the static charge is removed from the high voltage system when carrying out work on the
receiver. This can be achieved by connecting a 10K resistor (with a suitably insulated lead) from the CRT cavity
connector to the CRT ground tag. This must be carried out with the AC supply disconnected from the receiver.
Note the following:
· The CRT in this receiver employs Integral Implosion Protection.
· If the CRT has to be changed it MUST be replaced with the correct type for continued safe working
· DO NOT lift the CRT by its neck.
· When handing the CRT, ensure that shatterproof goggles are worn.
· Ensure that the CRT is discharge before handling.
X-RAY
This receiver is designed to keep any x-ray emission to an absolute minimum. Some fault conditions and
servicing procedures may produce potentially hazardous x-ray radiation levels. This is a problem when in close
proximity to the receiver for long periods of time. To reduce any risks associated with this, please observe the
following precautions:
1. When undertaking any servicing on this chassis, DO NOT increase the EHT to more than 32 KV,
(at a instantaneous beam current of 1300mA).
2. Ensure that during normal operation the EHT does not exceed 29KV±1KV (at a beam current of
1500mA). This level has been preset in the factory. Always check that this level has not been exceeded after
carrying out any repair on the receiver.
3. DO NOT replace the CRT with any other type than that specified in the parts listing as this may
cause excessive x-ray radiation.
BEFORE RETURNING THE RECEIVER TO THE CUSTOMER
In addition to the above checks, the following should also be carried out before returning the receiver to the
customer.
1. Inspect all the leads to ensure that they are dressed correctly and that they are not obstructed or
pinched by any other parts.
2. Ensure that all protective devices are in good condition. These will include nonmetallic control
knobs, insulating fish papers, cabinets backs, compartment covers or shields, mechanical insulators,
etc.
4

70FW-53E
ADJUSTMENT PROCEDURES
All adjustments to this chassis, except for focus, are carried out in the Service Mode.
• SERVICE MODE
The Service Mode is provided to enable the engineer to correctly set up the receiver to the CRT fitted in the set.
Note that these Xadjustments
may vary from one receiver to another.
To enter the Service Mode, carry out the following procedure.
1. Connect a test pattern to the antenna terminal.
2. Tune the receiver to this signal.
3. Turn the receiver off using the mains switch.
4. Press volume down and channel up buttons on the
front of the receiver at the same time.
5. Keeping these buttons pressed, turn the mains on.
6. When the set starts up it will be in Service Mode.
7. Release the two buttons.
4
CH
5
• Use the channel up and down buttons to move between the options.
• Use the volume control buttons to change the data.
• To store the data, use the stand-by button on the remote control.
• To exit the Service Mode, turn the receiver off using the mains switch.
When the Service Mode is entered the following On Screen Display appears:
SERVICE SOFTWARE version ∗∗.∗∗
SW on: XXXX SW off: XXXX Hours ON: XXXX
The figures displayed in the “XXXX” locations are hexadecimal representations of the number of times that particular
function has been executed. For example if the hexadecimal number displayed after “SW ON” was 0E4A, this would
correspond to the receiver being turned on 3658 times.
Adjustment menu:
The following adjustments can be carried out in the Service Mode.
• HORIZONTAL SHIFT
• EAST-WEST WIDTH
• PIN PHASE
• PIN AMP
• UPPER CORNER CORRECTION
• LOWER CORNER CORRECTION
• VERTICAL LINEARITY
• VERTICAL AMPLITUDE
• S CORRECTION
• VERTICAL SHIFT
• RED GAIN
• GREEN GAIN
• BLUE GAIN
• RED CUT OFF
• GREEN CUT OFF
• BLUE CUT OFF
• ALTER NVM PAG
• ALTER NVM POS
• ALTER NVM VAL
• TELETEXT MIX MODE CONTRAST
• TELETEXT CONTRAST
• OSD CONTRAST
• DVCO ADJUSTMENT (ONLY PAL)
• DVCO ADJUSTMENT (ONLY NTSC)
• AGC ADJUSTMENT
• AFT ADJUSTMENT
• AFT ADJUSTMENT L’
• OPC VALUE
• AUTO INSTALLATION ON/OFF
Geometry Adjustments
All geometry adjustments are based on an internally generated test pattern as shown
in figure 1. When carrying out any of the above geometry adjustments, use the internally
generated test pattern for guidance.
5
Fig.1

70FW-53E
Note that the receiver should be set to FULL MODE before carrying out any geometry adjustments. This can be
achieved by pressing the wide-screen mode button on the remote control until FULL MODE appears on the OSD. This
can only be done out of the Service Mode.
The following geometry adjustments can be carried out. Detailed instructions on how to execute these are given on the
following pages
Horizontal
• HORIZONTAL SHIFT
• E-W WIDTH
• PIN PHASE
• PIN AMP
• UPPER CORNER CORRECTION
• LOWER CORNER CORRECTION
Vertical
• VERTICAL AMPLITUDE
• VERTICAL SHIFT
• S CORRECTION
• VERTICAL LINEARITY
If the receiver requires a full geometry set up, ensure that the vertical adjustments are carried first. It is important that the
adjustments are made in the order shown.
HORIZONTAL SHIFT
Adjust the HORIZONTAL SHIFT so that the picture is centred.
The effect of this adjustment is shown in figure 2.
• When the volume up button is pressed, the picture moves to the right.
• When the volume down button is pressed, the picture moves to the left.
• Press the stand-by button on the remote control to store.
Figure 2
E-W WIDTH
Adjust the E-W WIDTH so that 8% over-scan is achieved.
The effect of this adjustment is shown in figure 3.
• When the volume up button is pressed, horizontal scanning decreases.
• When the volume down button is pressed, horizontal scanning increases.
• Press the stand-by button on the remote control to store.
Figure 3
PIN PHASE
Adjust the PIN PHASE so that the picture is symmetrical top and bottom.
The effect of this adjustment is shown in figure 4.
• When the volume up button is pressed, side pincushion changes.
• When the volume down button is pressed, side pincushion changes.
• Press the stand-by button on the remote control to store.
Figure 4
PIN AMP
Adjust the PIN AMPLITUDE so that the picture is centred.
The effect of this adjustment is shown in figure 5.
• When the volume up button is pressed, side pincushion changes from pincushion to
barrel shape.
• When the volume down button is pressed, side pincushion changes from barrel
shape to pincushion.
• Press the stand-by button on the remote control to store.
Figure 5
UPPER CORNER CORRECTION
Adjust the UPPER CORNER CORRECTION so that the picture is centred.
The effect of this adjustment is shown in figure 6.
• When the volume up button is pressed, side pincushion changes from pincushion to
barrel shape.
6
Figure 6

70FW-53E
• When the volume down button is pressed, side pincushion changes from barrel shape to
pincushion.
• Press the stand-by button on the remote control to store.
LOWER CORNER CORRECTION
Adjust the LOWER CORNER CORRECTION so that the picture is centred.
The effect of this adjustment is shown in figure 7.
• When the volume up button is pressed, side pincushion changes from pincushion to
barrel shape.
• When the volume down button is pressed, side pincushion changes from barrel shape to
pincushion.
• Press the stand-by button on the remote control to store.
Figure 7
VERTICAL LINEARITY
Adjust the VERTICAL LINEARITY so that the upper and lower parts of the picture are symmetrical.
The effect of this adjustment is shown in figure 8.
• When the volume up button is pressed, the upper picture scanning decreases and the
lower picture scanning increases.
• When the volume down button is pressed, the upper picture scanning increases and the
lower picture scanning decreases.
• Press the stand-by button on the remote control to store.
Figure 8
VERTICAL AMPLITUDE
Adjust the VERTICAL AMPLITUDE so that the picture is over-scanned.
The effect of this adjustment is shown in figure 9.
• When the volume up button is pressed, the vertical size of the picture increases.
• When the volume down button is pressed, the vertical size of the picture decreases.
• Press the stand-by button on the remote control to store.
S CORRECTION
Figure 9
Adjust the S CORRECTION so that the picture symmetrical between the top, centre and bottom.
The effect of this adjustment is shown in figure 10.
• When the volume up button is pressed, the top and bottom scanning increases and the
centre scanning decreases.
• When the volume down button is pressed the top and bottom scanning decreases and
the centre scanning increases.
• Press the stand-by button on the remote control to store.
Figure 10
VERTICAL SHIFT
Adjust the VERTICAL SHIFT so that the picture is centred.
The effect of this adjustment is shown in figure 11.
• When the volume up button is pressed, the picture moves up.
• When the volume down button is pressed, the picture moves down.
• Press the stand-by button on the remote control to store.
Figure 11
7

70FW-53E
Colour Adjustments
The following adjustments should only be carried out when the CRT or IC1801 are replaced.
G2, Cut Off and Gain Adjustments
1. Follow the procedure below to set the G2
1.1 Tune the set to the output of a signal generator (cross hatch pattern).
1.2 In the user menu, set contrast to 80/100 and brightness to 40/100.
1.3 Connect the oscilloscope to the red cathode and adjust G2 to read 140V on the sensor pulse as in the drawing:
140 V
CH1 gnd
NOTE:
Oscilloscope should be adjusted for vertical TV field trigger and synchronized with video signal.
2. Follow the procedure below to set the Cut Off.
2.1 Adjust G2.
2.2 Tune a white pattern.
2.3 Adjust colour to minimum.
2.4 Position colorimeter in the centre of screen.
2.5 Adjust brightness and contrast to obtain a luminance of ≈20 NITS.
2.6 Operate in Service Mode and select location RED CUT OFF, GREEN CUT OFF and BLUE CUT OFF, to obtain
colour coordinates:
X=0.290 ± 0.015 Y=0.300 ± 0.015
To increase press volume-up button and to decrease press volume down button.
RED CUT OFF alter «X» coordinate.
GREEN CUT OFF alter «Y» coordinate.
BLUE CUT OFF alter «X» and «Y» coordinate.
3. Follow the procedure below to set the GAIN.
3.1 Using brightness and contrast buttons, select a luminance of ≈120 NITS.
3.2 Operate in Service Mode and select location RED GAIN, GREEN GAIN and BLUE GAIN, to obtain colour
coordinates:
X=0.290 ± 0.015 Y=0.300 ± 0.015
To increase press volume-up button and to decrease press volume down button.
RED GAIN OFF alter «X» coordinate.
GREEN GAIN OFF alter «Y» coordinate.
BLUE GAIN OFF alter «X» and «Y» coordinate.
3.3 Exit Service Mode and check colour coordinates «X» and «Y» at 20 and 120 NITS. It may be necessary to
repeat procedure 2 and 3 of Colour Adjustments.
Changing NVM Data
To change the data contained within the Non Volatile Memory, it is necessary to first select the page the data is stored in,
then the position and finally to change the data itself. The procedure below outlines this process.
1. While on ALTER NVM PAG, use the volume up/down buttons to change this data (data is shown in hexadecimal
format).
2. Press the channel up button and ALTER NVM POS appears, use the volume up/down buttons to change this data (data
is shown in hexadecimal format).
8

70FW-53E
3. Press the channel up button and ALTER NVM VAL appears, use the volume up/down buttons to change this data (data
is shown in hexadecimal format).
4. Once this data has been set, press the stand-by button to store.
5. If another NVM value has to be changed, use the channel down button to select the page or position and repeat as
necessary.
Note:
DO NOT change any NVM data, unless you have been advised to do so by a Sharp representative. If data is incorrectly
changed, serious damage may occur to the receiver.
Contrast Adjustments
Three types of contrast levels can be varied as listed below:
• TELETEXT MIX MODE CONTRAST
• TELETEXT CONTRAST
• OSD CONTRAST
Use the volume up/down buttons to adjust to a suitable level, then press the stand-by button to store.
DVCO Adjustment (PAL)
Carry out the DVCO Adjustment (PAL) as shown below:
1. Receive a Phillips pattern signal.
2. While in the DVCO ADJUSTMENT (PAL) menu, press the stand-by button.
3. The adjustment will be carried out automatically and stored.
DVCO Adjustment (NTSC)
No adjustment required.
Auto Installation On/Off
To return the receiver to the original Auto Installation mode, using the volume up or down button, set the Auto Installation
On/Off to On. This setting is automatically stored and when the receiver is turned on the next time it will start up in Auto
Installation mode.
AGC Adjustment
To correctly align the Automatic Gain Control, follow the procedure outlined below:
1. Tune the set into a pattern generator on CH10.
2. Adjust the signal strength of the pattern generator to 57dB/µV
3. Enter the Service Mode.
4. Enter the AGC Adjustment menu.
5. Press the stand-by button on the remote control.
6. The adjustment will be carried out and stored automatically.
AFT Adjustment for PAL BG, SECAM L
To correctly align the Automatic Fine Tune, follow the procedure outlined below:
1. Tune the set into a pattern generator on CH69.
2. Enter the Service Mode.
3. Enter the AFT Adjustment menu.
4. Press the stand-by button on the remote control.
5. The adjustment will be carried out and stored automatically.
AFT Adjustment for SECAM L’
To correctly align the Automatic Fine Tune, follow the procedure outlined below:
1. Tune the set into a pattern generator on F04.
2. Enter the Service Mode.
3. Enter the AFT Adjustment menu.
4. Press the stand-by button on the remote control.
5. The adjustment will be carried out and stored automatically.
9

10
70FW-53E
C748
IC704
C651
C652
A
F7241BMNK
K7241B
JF63
J363
+
C1823
C
Q912
E
+
C1807
JF65
(H
C18
J362
C1825
+
C1824
D1815
D1813
D1814
R1833
R1831
R1835
R1801
JF64
JF66
(
ESPA¥A
1
9
IC1801
(K).
+
C1811
+
C703
D701
C704
R564
JF61
R703
R563
R518
C648
FB603
R604
JF55
D611
(EW)
JF56
JF57
L703
C746
D708
+
C724
D707
C702
(G)
2
1
JF54
JF53
L705
FB705
JF28
J86
J85
R727
D714
F601
F602
C618
C611A
JL17
R763
D516
J288
J300
1
(MO)
4
(L5)
FB701
R713
R730
(L4)
(ST)
(OPC)
(RC)
(SW2)
(SW1)
R628
R608
J320
J100
JL1
R611A
D719
R610
C619
+
+C620
+
C528
R606
R617
C607
+
D612
(AV).
R408
JL14.
J284
1
3
(PW)
C504
R553
L604
R603
J316
JF29
C634
D609
JF8
JF9
D608
M1000
R792
J10
R741
C616
+
J101
J134
D610
R616
J174
J175
J176
J177
R533
+
C
J4
CF701
1
THE "
"SYMBOL
CAUTION
THE ACTIVE SECTION
IS INDICATED WITH
E
Q711
C
T3.15AH
C615
J173
C610
R613
+
C719
R728
J99
J33
C718
+
R624
J172
R609
R641
D606
R623
D621
L606
J171
Q605
JF1
QKI
DIP
(L2)
IC1008
J6
J5
R714
C705
D712
R716
J178
JF10
J211
C613
D613
R612
FB601
D603
C601
D604
D605
1
(CW)
1
2
3
4
S701
S
D
G
20
21
21
20
S705
S704
D1001
D1002
LP701
S703
S702
18
10
9
1
T701
1
2
3
4
5
6
7
8
9
10
11
12
T601
MODULO_DIGITAL
6
12
Q701
L701
B
Q602
E
Q601
B
C
E
(F)
1 2 3 4 5
J208
J209
J210
R791
R790
C706
+
IC706
R742
R1036
IC501
20
J69
D711
FB702
C711
C714
L603
R50
L609
J207
L609A
C770
D718
L502
TP601
TP602
K7240BM
+
C707
+
C526
1 2 3
(A)
+
C509
R643
R503
FB501
C642
C611
C641
+
C723
+
C501
JL2
C631
C720
+
D720
C713
FB1002
JF48
J326
5
(H)
R536
C638
L612
C637
R614
L611
(AA)
3 1
C701
F701
FB704
FB703
D722
J321
C721
+
J317
R619
JF51
JF50
L605
(STB2)
1
5
POR701
L702
IC701
J17
D731
D734
R721
R778
R771
J344
+
C739
R770
D623
J133
D735
J358
R651
J306
D702
(L6)
R715
C710
D716
R723
J68
J67
IC705
D703
D704
F702
IC703
J366
C632
Page 11
MOTHER UNIT PWB (F7240NKA). Component side.
22
23
24
25
17
18
19
20
21
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
Y
X
0 10 11 12 13 14 15 16 17
1 2 3 4 5 6 7 8 9

11
70FW-53E
(STB1)
JL17.
E
Q502
B
R565
7241BM
(H).
C1826
+
C1824
D1809
13
14
33
31
35
(L3)
5
6
7
8
9
10
11
12
GND
TRC
L1801
C1812
+
R1832
R1834
R1836
C1814
(G2)
GND
JL12.
1
+
C415
JL12
(CV1)
C426
+
L203
(CC)
1
R471
R653
J136
R534
R508
J359
563
JL14
(K)
9 1
R815
J228
J234
+
C804
R814
JL27
JL26
JL28
JL10
(SC)
C305
+
+
C306
C381
C356
R650
A
A
1
(VS)
3
+
C377
JL11.
J120
R1019
R1020
X1002
J288
J300
C353
J62
+
C1027
JL1.
C1032
+
J24
JL12,,
C644
+
R530
J183
D622
R234
X301
J170
1
(SS)
3
+
C229
J271
R1055
JL2
J44
L1002
L1001
J309
J201
J200
J199
IC302
10
11
R526
R550
J90
R1008
J91
JF31
J60
L316
L315
J27
R1050
R618
J297
J116
J94
GND
GND
FB302
JL15
+
C437
C812 1
+
C818
+
X801
R230
J303
JL11..
C1031
+
JL6.
R436
R533
J249
J64
J314
+
C511
C524
C821
R231
C820
J221
J222
J241
J242
J32
J305
J31
R1047
J45
J46
L301
J14
J13
J12
J83
C332
+
J301
C205
+
C204
J225
C209
+
R232
R233
C228
J280
R426
R419
J216
5
+
JF19
J158
C514
J137
C365
+
+
C815
J401
J187
J47
C376
ITP7240BMNK
ESPA¥A
F7240BMNK
(YA)
(YB)
(YC)
J141
J143
J144
J153
J154
J155
J142
C431
C430
J145
J189
+
C210
J160
J161
J162
J151
L803
C343
+
R455
J246
L317
J9
J8
R541
J191
+
C313
+
C314
+
C311
L201
J169
C324
C325
C315+
C326
+
C329
IC1002
12
6
1
(SA) (SB)
1 6
L351
L350
IC203
C215
+
J275
J278
5
1
SF203
+
C206
CF202 1
J230
J131
+
IC301
1
10
20
52
27 26
1
IC2401
J274
J178
L503
J179
1
R425
R424
1
2
2
1
(AV)
CN3
4
2
6
5
3
1
7
TH201
AGC
TU
AS
CL
DA
B+
33V
IF1
IF2
1
6 12 6 1
12 6 1
L501
FB301
J265
J266
+
C218
64
33
32
1
IC305
J129
J128
J127
8
1
IC304
C358
IC801
1
32
33 64
J232
J231
5
1
SF201
SF202
1 5
J198
R306
R307
C220
+
J125
J168
J167
J166
J165
J164
J150
J147
J146
+
C211
J163
JF14
JF6
C322
C323
J157
J48
J49
J50
R501
+
C520
D510
J156
J152
J253
+
C219
J63
J251
J236
R451
J250
J74
J118
J95
J92
J41
J40
R1027
FB303
J252
TP701
TP201
1 (FV)
(FV).
1
J202
J203
J223
C362
J39
J117
J61
J72
J75
JL7
J243
J206
R420
J312
J138
J139
JF32
JF33
JF34
JF35
J318
J113
J114
J115
L2401
L2402
J88
J106
J194
J193
J192
(RGB)
J43
J42
J28
J224
501
JL12,
C822
J322
JL2.
J159
+
C342
J71
J311
J119
J140
R229
R620
X2401
J212
R519
J190
J185
J180
JL11
C1001
+
+
C825
J248
J260
C536
+
J87
R359
C361
+
C363
L352
+
C351
C352
+
C372
JL6
J78
J79
J80
J81
J82
IC1005
1 3
J93
L318
J130
R315
C341
1
(HD)
3
4
1(S)
J255
C422
+
R418
R464
+
C433
J331
1
AV
(RT)
1
J304
R1022
J270
J269
J323
J343
JL2..
50Hz
50Hz
J122
1
(STB3)
3
(STB4)
1
R1058
R1059
J121
R1018
(L2)
JL19
R1064
D623
C368
L353
+
C378
C382
C370
J30
C373
D206
JL18
J347
J348
J349
JL29
JL29.
JL27.
JL26.
JL28.
J307
J214
L801
+
C802
JL10.
JL7.
J319
D803
JL31.
JL31
R379
R380
R381
R382
F702
JF40
MOTHER UNIT PWB (F7240NKA). Component side.
Page 10
29 30 31 32 33
20 21 22 23 24 25 26 27 28
17 18 19
Y
X
22
23
24
25
17
18
19
20
21
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
16

12
70FW-53E
K D426
R472
(STB1)
R505
R504
R547
JF41
Q502
R506
K
D1012
C1826
C18
C1811
C18
D1809
D
D
D
GND
5
6
7
8
9
10
11
12
TRC
F7241BMNK
C1813
R1839
L1801
C1812
+
R1837
R1832
R1834
R1836
C1814
A
J303
JL12.
1
+
C415
JL12
R416
R410
K
D417
R462
R417
K
D405
JF60
(CV1)
C443
R466
R461
JF11
R459
C426
+
R251
R252
Q209
L203
(CC)
C451
J360
J361
R1003
J350
C521
Q507
R528
Q505
R514
R548
C523
J136
R534
R508
J359
C507
C502
R259
R210
C227
J354
D205
K
R215
C542
Q801
R810
R808
K
D615
C541
J356
C231
R563
R626
R1057
R1056
R1043
R1026
J302
C535
C359
C1034
C1033
C1028
C1026
C1021
C1005
J65
J51
J353
J352
J351
J345
J342
J341
J339
J338
J336
J335
J332
J325
J324
J310
J294
J289
J286
J283
J279
J240
J220
J219
J218
J2
J126
C826
C824
C823
C819
C817
C816
C814
C813
C811
C809
C808
C807
C803
C801
D415
K
K
D422
(K)
D804
K
Q805
Q804 R815 J228
J234
+
C804
Q803
Q802
R814
J146
IC503
(SC)
K
D302
D304
K
K
D305
+
C305
+
C306
C381
C356
Q305
Q306
(VS)
+
C377
Q303
Q302
J120
K D1009
K
D1003
R1019
R1020
FB1001
X1002
D416
K
J288
J300
C353
J62
+C1027
Q1001
C1032
+
J24
C644
+
R530
J183
D622
R234
X301
J170
(SS)
+
C229
J271
R258
Q210
R1055
J44
K
D802
J309
J201
J200
J199
FB802
IC302
11
20
K
D303
R526
R550
K
D2403
J90
R1008
J91
JF31
J60 K
D2401
L316
L315
J27
R1050
R618
Q608
J297
J116
J94
FB302
+
C437
JL14
+
C818
+
C812
X801
L204
R230
+
IC1004
IC1006
IC1007
IC1003
R436
R533
J249
J64
J314
C511
+
C524
+
D419 K
Q408
C821
R231
C820
J221
J222
J241
J242
J32
J305
J31
Q607
R1047
J45
J46
L301
J14
J13
J12
J83
C332
+
J301
C205
+
C204
J225
C209
+
R232
R233
C228
Q501
J280
R426
R419
J216
IC1001
1
25
26
75
C615
+
JF19
J158
C514
Q503
J137
C365
+
+
C815
K D4
J401
J187
J47
L202
C376
D410
K
(YA)
(YB)
J141
J143
J144
J153
J154 J155
J142
C431
C430
J145
J189
C210
J160
J161
J162
J151
L803
K
D617
C343
+
R455
J246
L317
J8
R541
J191
+
C313
+
C314
+
C311
L205
L201
J169
C324
C325
C315
+
C326
+
C329
32
17
16
1
IC1002
(SA)
(SB)
L351
L350
IC203
C215
+
J275
J278
SF203
+
C206
CF202
J230
J131
C362
+
IC301
11
20
IC2402
14
13
5
52
27
26
1
J274
IC401
J178
L503
J179
J211
D411
K
IC201
1
28
R425
R424
D409
K
IF2
IF1
B+
DA
CL
AS
TU
TH201
MODULO_DIGITA
Q404
Q405
FB301
J265
J266
D414
K
Q406
K
D203
+
C218
64
1
IC305
J129
J128
J127
8
IC304
C358
IC801
1
32
64
J232
J231
SF201
SF202
J198
11
R306
R307
C220
+
8 5
4
1
IC202
J125
J168
J167
J166
J165
J164
J150
J147
+
C211
J163
JF14
JF6
QKITP7240BMNK
IC2401
C322
C323
J157
J48
J49
J50
R501
+
C520
D510
J156
J152
J253
+
C219
J63
J251
J236
R451
J250
L
J74
J118
J95
J92
J41
J40
R1027
FB303
R449
J252
TP701
TP201
(FV)
(FV).
J202
J203
J223
J307
D601
K
J39
J117
J61
J72
J75
J243
J206
R420
J312
J138
J139
JF32
JF33
JF34
JF35
J318
J113
J114
J115
L2401
L2402
J88
J106
J194
J193
J192
J43
J42
J28
J224
C501
C822
J322
J159
+
C342
K
D1008
D1006
K
Q207
Q208
J71
J311
J119
J140
R229 R620
K
D618
X2401
J212
R519
J190
J185
J180
+
C1001
+
C825
J248
KD418
R467
J260
C536
+
J87
R359
Q304
C361
+
C363
L352
C351
+
C352
+
C372
K
D1005
Q1004
J78
J79
J80
J81
J82
IC1005
D1010
K
J93
Q1006
L318
Q606
J130
D204
R315
C341
(HD)
(S)
4
1
D301
K
J9
J255
Q403
C422
+
R418
R464
+
C433
Q201
J331
AV
(RT)
1
Q1007
D2402
K
D2404
K
J304
Q1005
R1022
K D1004
J270
J269
J323
J343
FB801
J122
(STB3)
(STB4)
R1058
R1059
J121
R1018
D1011
K
Q2401
D623
C368
L353
+
C378
C382
C370
J30
C373
J347
J348
J349
K
D407
K
D408
K
D406
D412
K
D413
K
D801
K
K
D1007
J214
L801
C802
+
J319
D803
C447
C1002
C1014
C1017
C1018
C1019
C1020
C1022
C1023
C1024
C1025
C1029
C1030
C203
C207
C208
C212
C213
C214
C216
C217
C221
C222
C223
C224
C225
C226
C230
C2401
C2402
C2403
C2404
C2405
C2406
C2407
C2408
C2409
C309
C310
C312
C316
C317
C318
C321
C327
C328
C330
C331
C333
C334
C335
C336
C337
C340
C350
C354
C357
C360
C364
C366
C367
C369
C371
C374
C375
C379
C380
C383
C401
C403
C405
C409
C410
C411
C412
C413
C414
C416
C417
C418
C419
C420
C421
C427
C428
C429
C432
C434
C435
C436
C438
C439
C440
C441
C444
C445
C446
C503
C512
C515
C51
C529
C531
C532
C533
C606
C617
C636
C643
J98
JF12
JF2
JF20
JF21
JF22
JF3
JF30
JF37
JF38
JF39
JF4
JF44
JF5
JF52
JF7
R1001
R1002
R1004
R1005
R1021
R1023
R1024
R1025
R1028
R1029
R1030
R1031
R1032
R1033
R1035
R1041
R1042
R1044
R1045
R1046
R1049
R1051
R1052
R1053
R1054 R1060
R1061
R203
R204
R205
R208
R209
R211
R216
R217
R218
R219
R220
R225
R226
R227
R228
R235
R236
R237
R238
R239
R240
R2401
R2402
R2403
R2404
R2405
R2406
R2407
R2408
R2409
R241
R2410
R2411
R2412
R242
R243
R244
R245
R246
R247
R248
R249
R253
R254
R255
R256
R257
R301
R302 R303
R304
R309
R316
R317
R318
R319
R320
R321
R322
R323
R350
R351
R352
R353
R354
R355
R356
R357
R358
R360
R361
R362
R363
R372
R373
R374
R375
R376
R377
R378
R404
R406
R
R411
R412
R413
R414
R415
R421
R422
R423
R427
R428
R429
R430
R431
R432
R433
R434
R437
R445
R447
R448
R450
R452
R453
R454
R456
R457
R458
R460
R463
R465
R468
R469
R470
R502
R507
R510
R511
R512
R515
R516
R517
R521
R522
R532
R535
R542
R544
R545
R549
R551
R552
R554
R622
R644
R
R801
R802
R803
R804
R805
R806
R807
R809
R811
R812
R813
R816
R817
R818
R312
R314
R308C338
C387
R310
C319
R311
C339
C320
C386
R313
K
D425
C402
R403
C404
R405
D423
K
C406
D424
K
F702
C1031
JF40
K
D507
K
D508
MOTHER UNIT PWB(F7240NKA). Copper side.
Page 13
22
23
24
25
17
18
19
20
21
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
Y
19 18 17 16
29 28 27 26 25 24 23 22 21 20
33 32 31 30
X

13
70FW-53E
D1811
K
L1802
JF62
C653
IC704
D1805
K
C1827
D1812
K
Q913
R1844
R1843
R1842
R1841
K
D1804
C1805
R1830
R1812
C1815
R1816
R1811
C651
C652
JF63
JF64
C1806
J363
Q907
Q912
C1807
R1814
Q908
C1820
R1815
R1813
Q909
R1809
R1807
Q905
R1808
Q906
JF65
Q904
1
(H).
6
J362
C1825
C1811
+
C1824
D1815
D1813
D1814
R1833
R1831
R1835
C1821
R1810
Q901
R1801
R1804
R1802
C1822
C1801
K
D1810
Q902
R1803
Q903
JF66
R1806
IC1801
9
(K).
C1813
R1839
12
+
R1832
R1805
+
C703
D701
C704
7
C502
JF61
R703
R518
C525
C517
J340
J313
J281
C743
C742
C741
C740
C738
C737
C735
C733 C732 C731 C730
C728
C725
C722
C715
C712
C646
D415
K
D422
C648
503
Q506
Q603
FB603
JF55
D611
(EW)
K
D624
JF56
JF57
C746
C745
D708
Q715
+
C724
D707
C702
2 1 (G)
A
A
JF54
JF53
L705
FB705
JF28
J86
J85
R727
D714
16 9
8
1
IC707
C618
C611A
R763
IC708
1
3
4
6
Q709
D516
88
00
D503
K
K
D515
D506
K
(MO)
FB701
R713
R730
R627
L601
R625
R628
R608
D619
K
K
D728
C528
K D421
J320
J100
R611
R611A
D719
R610
C619
+
D504
K
+
C620
+
R606
D614
K
R617
C607
+
D612
1
(AV).
D401
K
K
D402
R408
JL14.
J284
C504
R553
L604
R603
J316
R718
JF29
C634
D609
JF8
JF9
D608
M1000
L702
L703
R792
J10
T702
R741
C616
+
J101
J134
D610
R616
J174
J175
J176
J177
R533
D620
K
C511
+
J4
CF701
THE " " SYMBOL
CAUTION
THE ACTIVE SECTION IS INDICATED WITH
D725
K
Q710
Q712
Q711
5
+
J173
R613
K D420
C719
R728
J99
J33
C718
J172
R609
R641
D606
R623
Q604
D621
L606
J171
B
E
Q605
JF1
D403 K
(YC)
J209
Q1003
Q1002
J6
J5
D713
K
R714
C705
J178
JF10
J211
C613
D613
R612
FB601
D603
C610
C601
D604
D605
1
(CW)
1
2
3
4
S701
(AV)
S705
S704
D1001
D1002
LP701
S703
S702
18
10
9
1
T701
T601
1
2
3
4
5
6
7
8
9
10
11
12
DIGITAL
Q404
Q701
L701
Q602
Q601
(F)
1
2
J208
J210
L501
IC502
IC702
1 8
9
R791
R790
C706
+
IC706
R742
R1036
IC501
1
J69
D711
FB702
C711
C714
L603
E
B
L609
J207
L609A
C770
R743
L502
TP601
TP602
K
D724
+
C707
+
C526
R744
(A)
1
2
3
+
C509
R643
R503
FB501
C642
C611
C641
K
D721
+
C723
+
C501
K
D727 R762
C631
+
C720
D720
Q702
C713
D730
K
Q703
R716
D712
FB1002
D502
K
JF48
J326
(H)
R536
C638
L612
C637
R614
L611
C701
F701
FB704
FB703
D722
J321
C721 +
J317
R619
JF51
JF50
L605
(STB2)
5
POR701
Q714
K
D706
IC701
J17
D731
D734
R721
R778
R771
J344
Q708
+
Q717
R770
D732
K
D733
K
R774
D710
K
C739
K
D404
D509
K
C1015
C408
C442
3 C505
C506
C508
C510
C513
C515
C516
C518
C522
C527
C529
C530
2
C534
C537
C538
C539
C540
C633
C635
C639
C640
C645
J701
JF1001
JF1002
JF1003
JF1004
JF1005
JF1006
JF1007
JF1008
JF15
JF16
JF24
JF46
JF47
R1012
R1017
R1037
R1038
R1039
R1040
R401
R402
R407
R409
R435
R447
R450
R453
R502
R509
510
R511
R513
R520
R524
R525
R527
532
R537
R538
R539
R540
R555
R556
R557
R558
R559
R560
R561
R562
R601
R605
R607
R615
R634
R642
R646
R647
R648
R706
R707
R708
R711
R712
R717
R719
R720
R732
R733
R735
R736
R737
R738
R739
R740
R745
R746
R747
R748
R750
R751
R752
R754
R755
R758
R767
R769
R776
R777
R787
R788
R789
J133
D735
J358
R651
J306
D625
K
D702
R715
C710
J365
IC703
R1048
R765
R766
D716
J68
J67
C716
C717
R722
D715
K
R768
D726 K
R749 IC705
R724
D703
D704
R775
C749
K
D729
C748
R723
D718
F7240BMNK
J366
C632
MOTHER UNIT PWB (F7240NKA). Copper side.
Page 12
22
23
24
17
18
19
20
21
11
12
13
14
15
16
2
3
4
5
6
7
8
9
10
1
Y
X
0
10 9 8 7 6 5 4 3 2 1
17 16 15 14 13 12 11

+
70FW-53E
DYNAMIC FOCUS UNIT PWB (F7314N3).
25
24
C1701
THE " " SYMBOL
IS INDICATED WITH
THE ACTIVE SECTION
CAUTION
C1701
25
24
23
R1702 R1701
R1703 K
D1701
R1707
T1701
T1701
23
22
D1702
C1708
R1715
D1703
K
C1702
C1702
(L6)
22
21
20
19
18
(PWA) (PWB)
R1705 R1704
3 1 3 1
C1707
R1706
R1711
C1703
R1710
+
C1706
J12
R1712
R1708
IC1701
C1705
R1714 R1713
R1709
FB1701
C1704
FB1701
PRDAR5534
C1704
Q1701
D1703
R1709
J12
+
C1703
R1710
C1708
CAUTION
THE ACTIVE SECTION
IS INDICATED WITH
THE " " SYMBOL
C1707
1 (PWB) 3
1 (PWA) 3
21
20
19
18
17
17
(L5)
16
16
15
14
13
12
11
(EW)
R1602
(FF)
(F)
5 4 3 2 1
5 4 3 2 1
Copper Side
Component Side
K7314BM
5
5
4
4
3
3
2
2
1
1
1
(FF)
(F)
T1602
(EW)
R1602
15
14
13
12
11
10
9
T1602
F7314BMN3 .
10
9
8
7
R1603
Q6101
C1603
C1602 C1601
C1601
C1602
C1603
E
C
Q1601
B
R1603
8
7
6
R1601
D1601
R1601
6
5
C1604
FOCO
FOCO
C1604
+
D1601
D1602
5
4
D1602
.
4
3
2
GND
DYN.INPUT
F7314BMN3
DYN.INPUT
GND
3
2
1
ESPA¥A
1
X
0 1 2 3 4 5 6 7
Y
14
7 6 5 3 2 1
Y
0
X

A
70FW-53E
CRT MODULE UNIT PWB (F7273N3).
8
7
+
C1807
+
+
9
(K)
K7273BM
+
J78
+
+
+
+
FRONT A/V UNIT PWB
(F7267N0).
Comp. Side
10
Comp. Side
F7273BMN3
1
.
(L2)
L1603
CRT
L1604
JL20
(RT)
(MO)
CN4
71 35
6 2 4
J401
R449
L317
(SS) (FV) (CC)
(J)
A
F7267BMN0
9
8
7
6
5
4
3
Y
6
5
4
3
2
1
C1824
(L2)
J327
+
IC1801
C
D1804
C5412
1
+
C1823
5
C1811
(H)
R5420
D5404
R5425
2
Q912
E
+
R5422
R1820
14
15
R1821
ESPA¥A
R1822
+
C1812
C1825
D1809
R1841
R5428
Q5407
E B C5408
J70
C5414
J72
3
C5405
R1834
G2
R1832
C5417
R5426
(PU)
C1814
0 1 2 3 4 5 6 7 8 9
X
1
6
5
7
4
8
D5405
J73
E
C5415
9
L1801
10
JL20.
11
R1836
B
Q5408
R5423
R5421
C5413
(L3)
12
R1621
(Q)
C1612
+
+
D5411
1
+
+
1
D5412
C1609
R1623
C1608
+
C1613
(B)
L318
4 3 2 1
Copper Side
4 3 2 1
JF1
JF2
JF3
J401
C428
C429
R449
L318
(SS)
(CC) (FV)
K7267BM
Y
F7267BMN0
2
1
X
0
0
1
2
3
4
5
6
X
0
Y
1
2
3
4
5
6
7
8
X
D5410
R5425
D5404
5
C1824
J5
R1825
R1819
C1804
C1805
(H)
K
C
D1805
J327
R1816
Q908
Q909
R1815
K
R5422
C5412
R5420
Q912 C1823
E
C1806
Q906
Q905
9
C5414
E Q5407
R1841
C1825
R1822
R1821
Q901
Q903
B
Copper Side
1 2 3 4 5 6 7 8 9
R1813
R1814
C1813
K
J70
D5403
(PU)
3 1
C5417
R1832
C1810
R1835
C1812
R1833
K
+
C5408
R5428
Q902
D1810
(K) 1
R5426
D1809
C5405
R1834
7
5
Q5411
L1603
Q5406
J73
Q5408
E
C1814
6
Q5410
4
8
D5405
L1801
9 10
CRT
B
R1843
11
12
R5423
R1836
F7273BMN3
L1604
R5421
.
C1609
D1607
1
K
+
+
C5410
C1807
C1815
R1808
R1812
C1820
R5415
R1830
Q907
R5416
R1839
J76
J78
R5417
C1808
R1809
R1807
R5418
R1803
Q904
R5419
R1831
R1805
C1801
C5411
R1811
J74
R1840
R5424
R1837
R1824
R1818
C1803
R1804
J79
R1802
J71
R1806
C1802
R1817
R1823
R1810
C1822
J75
C1821
R1801
C1809
C5409
R5414
R5413
R5431
R5412
R5432 R5433
R5434
C5415
Q5405
Q5412
R5435
J4
Q1604
(Q)
C1610
R1616
R1622
R1618
R1624
Q1603
R1615
R1619
C1611
J77
R1620
R1617
(B)
C1613
(MO)
IC1601
C1830
C1608
7
CN4
C336
C337
R317
L317
R316
(J)
3 1
8
9
10
15

.
70FW-53E
POWER SWITCH UNIT PWB (F7266N1).
7
Component Side
6
CAUTION
THE ACTIVE SECTION
IS INDICATED WITH
THE " " SYMBOL
OPC1
D6751
D6752
R6701
LP6701
S6702
S6703
IC6701
5
4
D6701
R6702
C6701
L6701
RC
R6751
3
2
S6701
F6701
D6702
T3.15AH
1
3 4
1
2
(AA)
3
SW1 SW2
(A)
2
F7266BMN1
K7266BM
.
1
(H)
2
3
C6746
1
1
OPC
ST
Y
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
X
Copper Side
7
D6752
R6738
D6751
IC6701
6
C6715
R6739
C6705
C6704
C6703
C6702
LP6701
R6701
5
F7266BMN1
R6751
RC
SW2
SW1
S6705
2
S6704
L6701
S6703
4
C6701
S6702
R6702
D6702
T3.15AH
F6701
D6701
S6701
4
3
2
(A)
1
3
1
(H)
2
ST
OPC
1
C6746
2
3
1
17 16 15 14 13 12 11
10 9 8 7 6 5 4 3 2 1
X
Y
0
Y
CENTRAL SPEAKER UNIT PWB (F7285N1A).
4
3
2
1
C1314
L1301
C1316 C1309
C1305
+
10
F7285BMN1
K7285BM
IC1302
Comp. Side
A
(SF)
1
+
C1306
C1302
+
(VS)
3
D1303
C1315
L1302
L1303
(CS)
D1304
C1310
1 (SB) 6
0 1 2 3 4 5
X
1
1
R1315
IC1300
R1303
1
(SB)
(CS)
3 C1306
(VS)
L1303
D1303
L1302
D1304
JF2
JF3
C1311
R1302
6
R1304 R1307
R1308
Copper Side
C1315
+
R1301
C1310
R1311
Q1301
+
C1304
IC1302
C1307
1
R1312
C1312
C1308
(SF)
1
R1313
C1313
C1314
C1309
C1316
L1301
R1314
C1305
C1317
+
1
10
C1302 C1303
J1
R1309 JF1 R1310
A
J2 F7285BMN1
5 4 3 2 1
X
4
3
2
1
Y
0
16

70FW-53E
MOTHER UNIT (F7240NKA) PWB COMPONENT LOCATION TABLES.
Component Side.
17

70FW-53E
MOTHER UNIT (F7240NKA) PWB COMPONENT LOCATION TABLES.
Component Side.
18

70FW-53E
MOTHER UNIT (F7240NKA) PWB COMPONENT LOCATION TABLES.
Component Side.
Copper Side.
19

70FW-53E
MOTHER UNIT (F7240NKA) PWB COMPONENT LOCATION TABLES.
Copper Side.
20

70FW-53E
MOTHER UNIT (F7240NKA) PWB COMPONENT LOCATION TABLES.
Copper Side.
21

70FW-53E
CRT UNIT (F7273N3) PWB COMPONENT LOCATION
TABLES.
Component Side
Copper side
22

70FW-53E
POWER SWITCH UNIT
(F7266N1) PWB COMPONENT
LOCATION TABLES:
Comp. side: Copper side:
FRONT A/V UNIT (F7267N0)
PWB COMPONENT LOCATION
TABLES:
Comp. side: Copper side:
DYNAMIC FOCUS UNIT
(F7314N3) PWB COMPONENT
LOCATION TABLES:
Component side: Copper side:
Ref No Xum Yum
(A) 114554 15240
(AA) 95504 16764
(H) 53594 14224
C6701 58166 37592
C6746 79756 16764
CAUTIO 78232 68072
D6701 11176 56642
D6702 45212 39116
D6751 140004 69011
D6752 151993 69011
F6701 31750 26924
IC6701 108000 75920
IC6708 127990 74295
L6701 81254 34366
L6701. 80264 35560
LP6701 43002 64008
OPC 137160 15240
R6701 30454 63754
R6702 43942 53594
R6751 128016 53848
RC 109982 55118
S6701 18491 66014
S6702 57988 61010
S6703 70002 61010
S6704 81991 61010
S6705 94005 61010
ST 149860 15240
SW1 109982 32765
SW2 109982 43942
Ref No Xum Yum
C6702 57912 62738
C6703 69850 62738
C6704 82042 62738
C6705 93980 62738
C6715 1E+05 70612
R6738 1E+05 71882
R6739 1E+05 66040
Ref No Xum Yum
(CC) 56388 14224
(FV) 45466 14224
(J) 82804 11734
(SS) 28194 14224
CN4 80518 40005
J401 59461 40005
L317 75488 18084
L318 17526 20574
R449 46228 22860
CENTRAL SPEAKER UNIT
(F7285N1A) PWB COMPONENT
LOCATION TABLES:
Comp. side: Copper side:
Ref No Xum Yum
(CS) 46482 25654
(SB) 35560 7874
(SF) 14478 35560
(VS) 41148 35560
C1302 23622 11176
C1305 5334 9652
C1306 25400 33782
C1309 9144 16510
C1310 31242 15494
C1314 5842 35306
C1315 25146 22606
C1316 3556 16764
D1303 33020 27940
D1304 37846 20066
IC1302 16510 19304
L1301 5842 27178
L1302 35306 24130
L1303 37846 31750
23
Ref No Xum Yum
C336 80264 34290
C337 78994 25654
C428 15697 25857
C429 25400 25908
JF1 49530 27432
JF2 51562 27432
JF3 53848 27432
R316 78994 22098
R317 81026 22098
Ref No Xum Yum
C1303 16764 11176
C1304 23368 23622
C1307 16764 30734
C1308 16764 14478
C1311 31750 17272
C1312 14478 20574
C1313 9652 23876
C1317 2794 16510
IC1300 42926 14986
J1 6096 7620
J2 16764 7620
JF1 17272 2286
JF2 38354 12446
JF3 37846 17272
Q1301 25400 11176
R1301 30480 11430
R1302 32258 11430
R1303 44958 9906
R1304 35814 11430
R1307 34036 11430
R1308 33020 2286
R1309 22352 2286
R1310 16764 9398
R1311 28702 11430
R1312 16256 20574
R1313 9652 28956
R1314 2032 23622
R1315 45466 29210
Ref No Xum Yum
(EW) 101600 46736
Ref No Xum Yum
C170554864 29718
(F) 130048 38862 C1706 46482 38100
(FF) 121158 38862 D1701 24638 33274
(L5) 83566 56134 D1702 27432 33274
(L6) 30226 54102 IC1701 47752 30226
(PWA) 66294 57150 R1701 15494 45974
(PWB) 52070 57150 R1702 21844 45974
C1601 170688 12192 R1703 21844 40132
C1602 174498 12192 R1704 36322 54102
C1603 176276 20574 R1705 40894 51562
C1604 198628 38100 R1706 41402 46990
C1701 14732 52832 R1707 22352 25146
C1702 33782 9144 R1708 36068 25400
C1703 41402 39116 R1711 46482 40132
C1704 56134 20066 R1712 58674 30988
C1707 58928 46482 R1713 60452 27178
C1708 68326 40132 R1714 67056 28702
D1601 194818 45212
R1715 67056 35052
D1602 202438 45212
D1703 61214 28956
FB1701 56642 10922
FOCO 21399532512
J12 48514 33020
Q1601 183007 32512
Q1701 43840 16510
R1601 190754 45212
R1602 131826 53848
R1603 171196 45466
R1709 38100 24130
R1710 53086 31750
T1602 151384 27432
T1701 18034 29718

70FW-53E
DESCRIPTION OF SCHEMATIC DIAGRAM
SAFETY NOTE:
1. DISCONNECT THE AC PLUG FROM THE AC
OUTLET BEFORE REPLACING PARTS.
2. SEMICONDUCTOR HEAT SINKS SHOULD BE
REGARDED AS POTENTIAL SHOCK HAZARDS
WHEN THE CHASSIS IS OPERATING.
IMPORTANT SAFETY NOTE:
PARTS MARKED WITH « ! » ( ) ARE
IMPORTANT FOR MAINTAINING THE SAFETY
OF THE SET. BE SURE TO REPLACE THESE
PARTS WITH SPECIFIED ONES FOR MAINTAIN-
ING THE SAFETY AND PERFORMANCE OF THE
SET.
NOTE:
1. The unit of resistance «ohm» is omitted (K=1000
ohms. M= Megaohm).
2. All resistors are 1/8 watt. unless otherwise noted.
3. All capacitors are mF, unless otherwise noted
(P= mmF).
4. The capacitor with Part No. RC-FZ9XXXBMNJ
is designed to with stand 63V.
5. The capacitor with Part No. RC-FZ4XXXBMNJ
is designed to with stand 50V.
SERVICE PRECAUTION:
THE AREA ENCLOSED BY THIS LINE ( )
IS DIRECTLY CONNECTED WITH AC MAINS
VOLTAGE.
WHEN SERVICING THE AREA, CONNECT AN
ISOLATING TRANSFORMER BETWEEN TV
RECEIVER AND AC LINE TO ELIMINATE HAZ-
ARD OF ELECTRIC SHOCK.
CAUTION
This circuit diagram is original one, therefore
there may be light difference from yours.
WAVEFORM MEASUREMENT CONDITION:
Colour bar generator signal of 70 dB from RF input.
1 2 3 4
580V 1.3 KV 15.625KHz 4 Vp-p 15.625KHz
215 Vp-p 50Hz
5
6
7
8
41 Vp-p 15.625KHz 1.8 Vp-p 50Hz 3.3V 50Hz
9 10 11 12
45 Vp-p 113 KHz FM
13
19V 50Hz 20.5 Vp-p 50Hz 1.15 Vp-p
400Hz
15.625KHz
400Hz
24

70FW-53E
SCHEMATIC DIAGRAM OF CRT SOCKET UNIT (F7273N3), 00 Version.
I
H
G
R1835
470
H.V.
27.5 KV
C1810
VB76EGV2381*N
1nF
R1832
680
(1/2W)
R 8 1
9
R1834
10
CRT
680
(1/2W)
G 6 6
11
11
B
R1836
571
680
(1/2W)
9 5 7 1
1
0
FOCUS
L1801
P0275BM
D1809
R1837
1N4004
2M2
DX0501
D1804
DX0505
C1814
C1813
4.7nF (2KV)
10nF
PB3DE472
R1841
C1815
22
100nF
SCREEN
R1839
10
L3
D5410 C5410
C5414
DX0551 10nF
R5420 22uF
R5422
56
(160V) 2.7
(1/4W)
(1/4W)
C5412
R5415
1K2
C5408
4n7
500V
Q5407
100uF
A1837
(16V)
D5404
R5416
DX0501
68K
1N4004
R5417
(PU)
12K
1
3
4
6
CODIGO
28-08-01 HASTA INF.1166
HASTA INF.1172
30-08-01
5
HASTA INF.1029
14-05-01
4
T P 7 2 7 3B M N 3
Q K I
HASTA INF.1017
14-03-01
3
ACABADO
ESCALA 2 07-03-01 HASTA INF.979
1
02-02-01 HASTA INF.SDC8
FECHA REVISIONES
N
1:1
SHARP 76FW53/54H
11-01-99
81FW53E
FECHA
MODELO
ELECTRONICA ESPANA S.A.
F
E
R1821
82K
(1/2W)
R1820
82K
R1831
R1833
(1/2W)
470
470
IC1801
IX1803
STV5109
C1808
C1809
1nF
1nF
9
7
4
6
R1823
12
2K2
3
10
11
15
13
1
14
2 8 5
NOMBRE
PLACA TRC
MATERIAL
L1603
47uH
DIS. DIB. CONT. V. B.
(DF)
2 1
D
R1822
82K
(1/2W)
C
B
+10V
R1802
R1803
390
75
Q902
R1804
2SC2412
100
Q903
2SA1037
Q901
2SC2412 C1822
22pF
R1805
1K
C1802
5pF
R1801
220
R1807 +10V R1808
390
75
R1817
1K2
C1821
Q906
R1818
22pF
1K2
R1810 2SA1037
1K
R1811
Q904
220
2SC2412
+10V
R1819
1K2
C1801
C1805
100nF
220nF
C1830
10NF 1 2 3 4
IC1601
VHIBA4558
8 7 6 5
R5426
R5418
2
D5405
220
C5409 68K
(2W)
DX0501
4n7
Q5408
1N4004
C4793
3
C5415
GN0341
22uF
R5419
R5423
(160V)
1K2 R5421 2.7
56 (1/4W)
(1/4W)
(MO)
R1824
2K2
J72
1K
C1831
33NF
250V
R1825
2K2
C1812
1uF
(250V)
C1825
C1811
10nF
10uF
250V
(250V)
KZ0029CE
C1807
1000uF
R1830
Q912
(16V)
4K7
TX0218BM
BC337-40
D1805
C12
EX0554
C1824
4.7nF
(500V)
R5425
470
1W
R5413
22
Q5405
2SA1037
R5412
47
C1806
10nF
Q905
R1809
2SC2412
R1806
100
220
C1803
15pF
C1804
R1812
R1813
15pF
390
75
R1814
100
Q908
2SC2412
Q909
C1820
2SA1037
22pF
Q907
R1815
2SC2412
1K
R1816
220
C5405
R5431
R5432
220nF
390
33
Q5412
Q5410
2SA1037
2SC2412
R5434
R1843
1K
22
A
R1840
8K2
(K)
1
2
3
4
5
6
7
8
1
2
3
(H)
(B)
GN0341
4
5
1
2
3
R1621
100
(1W)
Q1603
2SC2412
C1612
220uF
(25V)
R1622
470
C5411
D5403 10nF
1
DX0551
C5413
100uF
(16V)
2
GN0441
R5414
22
Q5406
2SA1037
R5428
100
(1/4W)
R1620
10K
C1608
10uF
(16V)
RT
R1617
2K2
R1619
47K
D1607
C2V4
EX0537
R5433
100
Q5411
2SC2412
R5435
220
R1615 R1616
1M
100K
R1624 C1611
100
10nF
R1618
100K
C1610 C1609
100nF 10uF
(16V)
C1613
220uF
(25V)
Q1604
2SA1037
R1623
100
(1W)
1
2 3 4 5 6 7
25

26
70FW-53E
SCHEMATIC DIAGRAM OF MOTHER UNIT (F7240NKA), 00 Version.
1
I
H
G
F
E
D
C
B
A
2 3 4 5 6 7
Page 27
Page 28

27
70FW-53E
SCHEMATIC DIAGRAM OF MOTHER UNIT (F7240NKA), 00 Version.
8 9 10 11 12 13 14
I
H
G
F
E
D
C
B
A
Page 26
Page 29

28
70FW-53E
1 2 3 4 5 6 7
R
Q
P
O
N
M
L
K
J
SCHEMATIC DIAGRAM OF MOTHER UNIT (F7240NKA), 00 Version.
Page 29
Page 26

29
70FW-53E
8 9 10 11 12 13 14
R
Q
P
O
N
M
L
K
J
SCHEMATIC DIAGRAM OF MOTHER UNIT (F7240NKA), 00 Version.
Page28
Page 27

70FW-53E
SCHEMATIC DIAGRAM OF DYNAMIC FOCUS UNIT (F7314N3), 00 Version.
I
H
(L6)
(PWA)
CM0672FC
6
5
4
FECHA REVISIONES N
3
2
1
G
F
E
D1701
R1707 C1702
DX0551
100
10nF
T1701
Z0587BM
D1702
C18
4
3
2
R1708
68K
Q1701 FB1701
C1703 TX0231BM LN0080CE
22uF
1
D1703
BYV28-600
R1709
10
C1704
220pF
2KV
R1710
.47
(1W)
C1707
22nF
(630V)
FZ0186
R1715
330K
(TQ)
(1%)
NOMBRE CODIGO
PCF Module Q PWB F 7 3 1 4 B M N 3
ESCALA
SHARP
ELECTRONICA ESPANA S.A.
FECHA
A-3
26-07-2002
70FW53E
81FW53E
MODELO
D
C
B
A
+325V
C1701
22nF
(630V)
FZ0186
R1704
R1701
560K
560K
(TQ)
(TQ)
R1705
R1702
560K
560K
(TQ)
(TQ)
R1706
R1703
560K
560K
(TQ) IC1701 (TQ)
L6561D
IX1801BM
C1705
1
INV VCC 8
1uF
2
COMP GD 7
GND 6
MULT
3
ZCD 5
CS
4
C1706
R1711
10nF
10K
R1712
6K2
R1713
(1%)
330K
(TQ)
(1%)
R1714
330K
(TQ)
(1%)
REALIZADO VERIFICADO APROBADO
Digitally signed by Castillo, Fco.
Digitally signed by Castillo, Fco.
Digitally signed by XAVIER RIBERA
cn=Castillo, Fco., ou=SEES, o=Engineering Dept., c=ES
cn=Castillo, Fco., ou=SEES, o=Engineering Dept., c=ES
cn=XAVIER RIBERA, ou=LABO, o=SEES, c=US
Date: 2002.07.26 11:51:22 +01'00'
Date: 2002.07.26 11:52:18 +01'00'
Date: 2002.07.26 13:35:59 +01'00'
Reason: This document is ready for approval
Reason: I have reviewed this document
Reason: I am approving this document
1
2 3 4 5 6 7
30

70FW-53E
SCHEMATIC DIAGRAM OF POWER SWITCH UNIT (F7266N1), 00 Version.
5
4
3
2
1
N.
I
H
G
+5V
+5V
R6739 R6738
100 100
2 3
D6751 2 3 D6752
PX0105
PX0105
1
1
CODIGO
NOMBRE
Q P W B F 72 66 B M N *
FRONTAL
POWER
MATERIAL
ACABADO
ESCALA
03-09-99 HAST AINF.254
FECHA REVISIONES
66FW53H/54H
81/70FW53EI
81/70FW53ESE
MODELO FECHA
DIS. DIB. CONT. V.B.
14-5-99
SHARP
76FW53H/54H
70/81FW53E
ELECTRONICA ESPANA S.A.
F
E
D
C
ONLY 66FW54H
M6701
IC6708
CU0205BM
TSL235
S6702 S6703 S6704 S6705
2 3
1
1 2 3
LP6701
KZ0079
KZ0079
KZ0079
+5V
3 2 1
3 2 1
3 2 1
3 2 1 3 2 1
P0001
KZ0079
C6715
100nF
R6751
3K3
(RC)
(SW1)
(SW2)
(OPC)
(ST)
GN0341
GN0341
GN0341
GN0341
GN0341
B
F6701
FS-C3226
R6701
120K
1/2W
(A)
D6701
GN0207
D6702
R6702
120K
1/2W
A
(M)
GN0304
S6701
P0600
1
2 3 4 5 6 7
31

70FW-53E
I
H
G
F
E
D
C
B
A
1
32
2 3 4 5 6 7
L317
3.3uH
(DF)
1543 267
1 2 3 3 2 1
(HD)
GN0341
C336
10nF
CN4
JAKJ0047CEZZ
R316
390
R317
390
C337
10nF
NOMBRE
MATERIAL
(SS)
GN0341
FRONTAL
SIGNAL
DIS. DIB. CONT. V.B.
2 1
2 1
(FV)
GN0241
CODIGO
Q P W B F 72
ACABADO
C428
1nF
SHARP
J401
0015B
(CC)
GN0241
L318
3.3uH
67 B M N *
81FW53E/SE/I
ELECTRONICA ESPANA S.A.
C429
1nF
ESCALA
MODELO
FECHA
R449
75
(1/4W)
66FW53H/54H
76FW53H/54H
REVISIONES
FECHA
5
4
3
2
1
14-5-99
N.
SCHEMATIC DIAGRAM OF FRONT AV UNIT (F7267N0), 00 Version.

I
H
G
F
E
D
C
B
A
33
1
2 3 4 5 6 7
(SB)
6
5
4
+5V
3
R1302
100
2
1
R1301
GN0685CE 100
R1311
4K7
JF2
0
R1304
(0)
Q1301
2SC2412
R1307
15K
C1302
330nF
C1303
1nF
-16V
+5V
L1303
3.3uH
(CF)
R1308
10K
R1309
27K
R1310
47K
IC1300
VHIBA4558
C1304
100nF
C1305
2.2uF
2
3
8
4
20
19
18
17
16
15
14
13
12
11
NOMBRE
1
CENTRAL
SPEAKER
MATERIAL
D1304
6V8
EX0411
IC1302
TDA7480
C1315
100nF
C1306
220uF
(25V)
D1303
6V8
EX0411
+16V
C1307
100nF
1
2
3
4
5
6
7
8
9
10
DIS. DIB. CONT. V.B.
L1302
3.3uH
(CF)
CODIGO
C1309
100nF
C1308
4n7
Q P W B F 7 2 85B M N
ACABADO
R1312
12K
81/70FW53ESE
81/70FW53EI
SHARP
C1310
220uF
(25V)
C1311
100nF
C1312
100pF
C1313
560pF
R1313
150
ELECTRONICA ESPANA S.A.
1
ESCALA
MODELO
(VS)
GN0341
L1301
P0278
C1314
470nF
23-08-00 HASTA INF.759
16-06-00 HASTA INF.649
21-07-99 HASTA INF.265
191 231 246 245
FECHA REVISIONES N.
FECHA
(SF)
GN0241
76/66FW53H 14-5-99
81/70FW53E
5
4
3
2
1
SCHEMATIC DIAGRAM OF CENTRAL SPEAKER UNIT (F7285N1A), 00 Version.
70FW-53E

A
A
B
B
C
C
D
D
E
E
70FW-53E
BLOCK DIAGRAM.
70FW-53E BLOCK DIAGRAM CENTRAL SPEAKER UNIT
+16V
SF 201
SAW
IC 305
IC1302
CENTER
TH 201
FM AUDIO
IF
MSP 3410 D
-16V
IF
SF 202
SAW
TUNER
IC 201 CVBS
+16V
TDA 4472
1 1
PERIPHERICS
SF 203
SAW
AUDIO L/R
IC 301
AUDIO OUT L
-16V
Q 304
Q 302
AUDIO
PROTECTOR
+16V
Q 303
MAIN POWER
IC 6701
IR
DETECTOR
+ CH - + VOL -
-16V
Q 305
Q 306
MUTE
S6701
21 PINS
RGB
21 PINS
F701
Micro Proc. COMUNICATION
AV-2
+13V
2 RGB
2
IC 702
IC 704
IC 801
IC 502
V
Micro Proc.
BA 4558
21 PINS
V. OUT
IC 501
V
VDP 3120 C
DRIVER TDA 7480
ADG COIL
POWER ST-BY
AV-1
Micro Proc. COMUNICATION
VERTICAL
CONTROL
VIDEO PROCESSOR
POWER
SVM
ON/ST-BY
PTC
PR 701
D 1101
+5V
IC 701
IC 703
S-VIDEO
AV-FRONT
IC 401
HEF 4053
SWITCH
V
E/W
OUT
H.OUT
RGB
-13V
Q 502
Q 503
VERTICAL
FLYBACK
CRT UNIT
- +
17
T 701
+16V AUDIO
IC 1001
S 10 R 272 L
Micro Proc.
M3L
IC 2401
SDA 5273S
MT TEXT
3 3
SVM
Q 5410
Q 5411
Q 5412
Q 901
Q 902
Q 903
SVM
IC 1801
D 701...D 704
C?
-16V AUDIO
+140V
IC 1002
27C4000
EPROM
ROTATION
COIL
RGB
R
G
Q 904
Q 905
Q 906
R
G
B
H
VERT.
DEFLEX.
COIL
HORIZ.
DEFLEX.
COIL
C.R.T.
CESH
Q703 DRIVER
Q702
Q701
12
15
Q 704
Q 713
Q 706
Q 705
Q 707
+5V DIGITAL
H. OUT
E/W
OUT
H.OUT
ROTATION
COIL
Q 907
Q 908
Q 909
IC 1602
Q 1603
Q 1604
TEA5101A
ROTATION COIL
FOCUS
H.V.
IC 705
14
SENSOR
E/W
OUT
Q603
Q605
Q604
Q602
H. DRIVE
Q
601
POWER UNIT
-13 V
+13 V
HEATER
SCREEN
IC 706
4 H.V.
4
R741
C770
IC 503
Q 501 E/W
DRIVE
Q 506
E/W
EMULATOR
F.B.T.
FOCUS
+145 V
HORIZ. DEFLECTION
8
7
3
4
5
6
1
2
B
3
2
+
-
+
-
6
4
7
IC 302
3
2
6
4
7
AUDIO OUT R
3
+
-
6
4
7
IC 304
HEADPHONE CONECTOR
I2C
I2C
I2C
IC2
IC2
D 605
R742
34

70FW-53E
PARTS LISTING
REPLACEMENT PARTS
Replacement parts which have special safety characteristics are identified
in this manual. Electrical components having such features are identified
by ! in the Replacement Part List.
The use of a substitute replacement part which does not have the same
safety characteristics as the factory recommended is not permitted.
Replacement parts not shown in this service manual may create shock
fire, or other hazards.
HOW TO ORDER REPLACEMENT PARTS
To have your order completed promptly and correctly please supply the
following information.
1. MODEL NUMBER
3. PART NO.
5. CODE
2. REF. NO.
4. DESCRIPTION
6. QUANTITY
35

70FW-53E
36

70FW-53E
37

70FW-53E
38

70FW-53E
39

70FW-53E
40

70FW-53E
41

70FW-53E
42

70FW-53E
43

70FW-53E
1
1.1 1.4 1.6
1.7
SHARP
1.3 1.2 1.5 1.8
2
3
4
3
44

70FW-53E
STEREO LED FLASHING CODES
If the TV set does not work and the stereo led is flashing, follow the sequence according to the information below, as a
guide to fault finding.
1. Unable to read or write into NVM: 66% ON, 33% OFF twice and OFF for a second.
On
Off
2. MSP failure: 66% ON, 33% OFF for three times and OFF for a second.
On
Off
3. VDP failure: 66% ON, 33% OFF for four times and OFF for a second.
On
Off
45

70FW-53E
PACKING OF THE SET
Pack-ad
SPAKX4050BMZZ
Wrapper
SPAKP2006BMZZ
Front Carton Box
SPAKC5497BMZZ
Batteries
UBATU0013TAZZ
Remote Control
RRMCG1070BMSA
46

70FW-53E
Notes
47

70FW-53E
No part of this publication may be reproduced,
stored in a retrieval system, or transmitted in any
form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, without
prior written permission of the publisher.
SHARP ELECTRONICA ESPAÑA S.A.
TV Division
Engineering Dept.
Polígono Industrial Can Sant Joan
Sant Cugat del Vallès
Barcelona
Spain
PRINTED BY:
RECYCLED PAPER
ON:
48