kv-21lt1u - Reptips
kv-21lt1u - Reptips kv-21lt1u - Reptips
5-2. CIRCUIT BOARD LOCATION H D1 VM CVM Board A A Board 5-3. SCHEMATIC DIAGRAMS AND PRINTED WIRING BOARDS Note : • All capacitors are in µF unless otherwise noted. • pF : µµF 50WV or less are not indicated except for electrolytic types. • Indication of resistance, which does not have one for rating electrical power, is as follows. Pitch : 5mm Electrical power rating : 1/4W • Chip resistors are 1/10W • All resistors are in ohms. k = 1000 ohms, M = 1000,000 ohms • : nonflammable resistor. • : fusible resistor. • : internal component. • : panel designation or adjustment for repair. • All variable and adjustable resistors have characteristic curve B, unless otherwise noted. • All voltages are in Volts. • Readings are taken with a 10Mohm digital mutimeter. • Readings are taken with a color bar input signal. • Voltage variations may be noted due to normal production tolerences. • : B + bus. • : B - bus. • : RF signal path. • : earth - ground. • : earth - chassis. C C D2 D N S1 BoardJ A2 A A1 24 Reference Information RESISTOR RN : METAL FILM RC : SOLID FPRD : NON FLAMMABLE CARBON FUSE : NON FLAMMABLE FUSIBLE RS : NON FLAMMABLE METAL OXIDE RB : NON FLAMMABLE CEMENT RW : NON FLAMMABLE WIREWOUND : ADJUSTMENT RESISTOR COIL LF-8L : MICRO INDUCTOR CAPACITOR TA : TANTALUM PS : STYROL PP : POLYPROPYLENE PT : MYLAR MPS : METALIZED POLYESTER MPP : METALIZED POLYPROPYLENE ALB : BIPOLAR ALT : HIGH TEMPERATURE ALR : HIGH RIPPLE Note : The components identified by shading and marked are critical for safety. Replace only with the part numbers specified in the parts list. Note : Les composants identifiés par une trame et par une marque sont d'une importance critique pour la sécurité. Ne les remplacer que par des pièces de numéro spécifié. specified.
5-2. BLOCK DIAGRAMS (1) IC604 2 1 DUAL DC REGULATOR CN1201 4 R AUDIO TO SPEAKERS 1 L AUDIO IC001 MICRO, VIDEO PROCESSOR, ROM, AUDIO, VIDEO SWITCH 6 LED XTAL IN 63 XTAL OUT 64 CN001 +3.3V STBY 5 +8V PH601 ISOLATOR DY ASSY IC501 VD+ V OUTPUT 7 IN VP 3 BOOST OUT 5 VD- 1 REF POWER S601 J1200 CN601 4 1 4 1 6 5 4 3 2 1 LOWB V- DY+ V- DY+ V- DY- V- DY- 1 2 IC201 AUDIO AMP MAIN RECT D601 LINE FILTER T601 IC002 REMOTE CONTROL RECEIVER 1 VCC OUT 2 +5V STBY 48 AUD OUT/CV6520 67 V DY 2 3 RELAY RY601 14 OUT/L H- DY- 1 IN/INL 10 MUTE AUDIO MUTE 5 H DY H- DY+ H- DY- H- DY- LOWB H- DY+ CN603 1 2 MUTE SW Q212 H- DY+ DGC CHECK DGC CHECK NVM WP 79 T603 SRT 1 2 18 17 2 IC603 ERROR AMP +B PIN OUT Q532 1 7 +B D639 RECT 1 IC531 PIN CORRECTION 5 - 6 + 3 + 2 - EW D617 D116 CN602 1 DGC DGC 3 DGC HP PROTECT 12 11 16 15 IC601 2 FB VD 18 VGCH 16 Q606 1 VSENSE D608 3 CT 4 RT 6 TIMER 7 VG(G) 12 Q607 SS 9 OCP VS 15 7 WP IC004 6 SCL 5 SDA TU101 AGC SCL SDA 71 SCL - + 3 2 5 6 72 SDA 1 +5V STBY J401 (2/2) 36 CVBS2/ CVBSY2 2 KEY/CS VIDEO + 68 FUNCTION SWITCH S001 - S006 R R OUT Q704 R DRIVE, BKG Q702, 703 CN703 R 6 G 5 TO A BOARD B CN504 4 A10 B10 7 J401 (1/2) AUDIO VCC LOWB - +5V STBY 3 AGC RELAY SWITCH Q601 IC401 AV LINK 53 B2/UIN 1 MODE1 BLUE IN A7 A19 MODE1 A8 G D619 D618 VM VCC D622 D624 T511 FBT 8 7 6 5 4 3 69 G OUT Q 707 G DRIVE, BKG Q705, 706 PICTURE TUBE CN504 TO C BOARD CN703 RED 1 GREEN 2 BLUE 3 IK 4 QCP DETECT Q612, 602 R0 58 G0 57 B0 56 IK 55 EWD 17 MODE2 80 MODE2 B8 H R G C 2 V 52 G2/YIN GREEN IN A11 G 4 B B OUT Q710 B DRIVE, BKG Q708, 709 RED IN 51 R2/VIN A15 H V 46 -/C4 C2 IN B15 BLK 50 INSSW2 A16 H1 H2 TO PICTURE TUBE T602 HV 40 CVBS1 V IN 1 A20 +200V 1 TO C BOARD CN706 G2 4 IC609 STANDBY POWER 5 4 3 +B C D FV 2 1 4 3 VD- 18 H2 CN707 TO A BOARD 1 CN502 5 Y/V IN 2 B20 45 -/CVBS4Y4 RCV VD+ 19 ABL 54 65 KEY/CS IC003 RESET RV702 H STAT 5 7 AUDIO 32 AUDIO 1 A2 G2 CN706 G2 1000V 1 TO T511 FBT CN510 7 13 5 ROT COIL 73 D571, Q571,574 HP TO C BOARD CN1705 NSC CORRECT IC608 D632 RECT AUDIO 29 AUDIO 2 12 6 CN1801 STBY +3.3V 3.3V REG VIDEO STBY 70 42 CVBS3 VIDEO L ABL TO TO A BOARD ROTATION T511 (FBT) COIL 1 1 2 7 IC1801 CN1705 TO A BOARD 3 CN510 11 10 T531 HDT BUFFER Q401,411 D513 +15V RECT 3 8 H-OUT Q533 H-DRIVE Q535 HD 3 9 8 7 D514 -15V RECT CN508 TO C BOARD CN707 5 1 H1 200V POWER SUPPLY, DEFLECTION, SMALL SIGNAL BOARD, A ( AUDIO AMPLIFIER ) 25 26 27 28
- Page 1 and 2: SERVICE MANUAL FE-2 CHASSIS MODEL C
- Page 3 and 4: 3 L E D O M M E T I m e t s y S n o
- Page 5 and 6: 21 pin connector 21 19 17 15 13 11
- Page 7 and 8: The operating instructions mentione
- Page 9 and 10: Level 1 Level 2 Level 3 / Function
- Page 11 and 12: Troubleshooting Here are some simpl
- Page 13 and 14: 2-6. Picture Tube Removal WARNING:
- Page 15 and 16: 2-11. Picture Tube Removal WARNING:
- Page 17 and 18: 3-2. Convergence Preparation: · Be
- Page 19 and 20: Layout of each control V.STAT 3-3.
- Page 21 and 22: Sub Brightness Adjustment 1. Input
- Page 23: Memo 23
- Page 27 and 28: A B C D E F G R S T U V W X Y Z H I
- Page 29 and 30: 5-4. SEMICONDUCTORS LM393DT TDA2822
- Page 31 and 32: 5-5 IC BLOCK DIAGRAMS A BOARD IC604
- Page 33 and 34: 6-2. KV-21LT1 PICTURE TUBE 51 52 53
- Page 35 and 36: 51 6-4. KV-21FT2 PICTURE TUBE 52 72
- Page 37 and 38: The components identified by shadin
- Page 39 and 40: The components identified by shadin
- Page 41 and 42: The components identified by shadin
- Page 43 and 44: The components identified by shadin
- Page 45 and 46: The components identified by shadin
5-2. CIRCUIT BOARD LOCATION<br />
H<br />
D1<br />
VM<br />
CVM Board<br />
A<br />
A Board<br />
5-3. SCHEMATIC DIAGRAMS AND<br />
PRINTED WIRING BOARDS<br />
Note :<br />
• All capacitors are in µF unless otherwise noted.<br />
• pF : µµF 50WV or less are not indicated except for<br />
electrolytic types.<br />
• Indication of resistance, which does not have one for<br />
rating electrical power, is as follows.<br />
Pitch : 5mm<br />
Electrical power rating : 1/4W<br />
• Chip resistors are 1/10W<br />
• All resistors are in ohms.<br />
k = 1000 ohms, M = 1000,000 ohms<br />
• : nonflammable resistor.<br />
• : fusible resistor.<br />
• : internal component.<br />
• : panel designation or adjustment for repair.<br />
• All variable and adjustable resistors have<br />
characteristic curve B, unless otherwise noted.<br />
• All voltages are in Volts.<br />
• Readings are taken with a 10Mohm digital mutimeter.<br />
• Readings are taken with a color bar input signal.<br />
• Voltage variations may be noted due to normal production<br />
tolerences.<br />
• : B + bus.<br />
• : B - bus.<br />
• : RF signal path.<br />
• : earth - ground.<br />
• : earth - chassis.<br />
C<br />
C<br />
D2<br />
D<br />
N<br />
S1 BoardJ<br />
A2<br />
A<br />
A1<br />
24<br />
Reference Information<br />
RESISTOR RN : METAL FILM<br />
RC : SOLID<br />
FPRD : NON FLAMMABLE CARBON<br />
FUSE : NON FLAMMABLE FUSIBLE<br />
RS : NON FLAMMABLE METAL OXIDE<br />
RB : NON FLAMMABLE CEMENT<br />
RW : NON FLAMMABLE WIREWOUND<br />
: ADJUSTMENT RESISTOR<br />
COIL LF-8L : MICRO INDUCTOR<br />
CAPACITOR TA : TANTALUM<br />
PS : STYROL<br />
PP : POLYPROPYLENE<br />
PT : MYLAR<br />
MPS : METALIZED POLYESTER<br />
MPP : METALIZED POLYPROPYLENE<br />
ALB : BIPOLAR<br />
ALT : HIGH TEMPERATURE<br />
ALR : HIGH RIPPLE<br />
Note : The components identified by shading<br />
and marked are critical for safety.<br />
Replace only with the part numbers<br />
specified in the parts list.<br />
Note : Les composants identifiés par une trame et<br />
par une marque sont d'une importance<br />
critique pour la sécurité. Ne les remplacer<br />
que par des pièces de numéro spécifié.<br />
specified.
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