kv-21lt1u - Reptips
kv-21lt1u - Reptips kv-21lt1u - Reptips
[ C PRINTED WIRING BOARD ] C [ R, G, B OUT ] A board Semiconductor Voltage Table R ef ( e) ( b) ( c) R ef ( e) ( b) ( c) Q013 0 0. 7 0 Q604 0 0 2. 5 Q016 0 0 3. 3 Q608 0 0 5. 6 Q212 0 0. 7 0 Q609 5. 6 5. 6 0 Q401 4. 8 4. 2 1. 8 Q411 1. 1 1. 7 4. 2 R ef ( s) ( g) ( d) Q601 5. 6 4. 8 5. 3 Q606 10. 9 14. 5 86. 7 Q602 14. 2 5. 1 8 Q607 -82. 4 -79. 9 10. 9 Q603 8 8 0 Q535 0 2. 5 95. 2 A board Location Table DIODE D435 A - 2 D634 F - 10 D001 J - 2 D436 A - 3 D639 I - 6 D002 J - 4 D501 D - 9 D640 L - 5 D003 J - 2 D502 D - 9 D1201 H - 1 D004 M - 8 D503 I - 1 D1203 I - 4 D006 M - 8 D504 H - 2 D1204 H - 4 D007 J - 2 D505 J - 1 IC D008 L - 1 D506 D - 5 IC001 K - 2 D010 G - 2 D507 J - 1 IC002 M - 8 D011 H - 2 D512 D - 8 IC003 I - 2 D012 J - 2 D513 D - 9 IC004 K - 4 D013 M - 8 D514 C - 9 IC401 I - 2 D014 M - 8 D534 D - 4 IC501 D - 10 D016 J - 2 D535 E - 6 IC531 E - 4 D017 L - 1 D536 B - 6 IC601 F - 10 D018 G - 2 D537 C - 4 IC602 F - 7 D019 L - 1 D538 F - 6 IC604 H - 5 D020 M - 8 D539 B - 5 IC608 L - 6 D035 L - 2 D573 F - 5 IC609 L - 6 D036 L - 2 D601 I - 9 IC1201 H - 4 D051 K - 1 D602 K - 5 TRANSISTOR D101 B - 1 D604 F - 9 Q013 K - 3 D103 E - 2 D610 J - 5 Q016 I - 3 D104 E - 2 D611 G - 5 Q212 I - 5 D210 I - 5 D612 G - 5 Q401 C - 1 D211 I - 5 D613 J - 6 Q411 D - 1 D212 I - 5 D614 K - 8 Q532 D - 4 D402 B - 2 D615 H - 5 Q533 A - 6 D404 I - 2 D616 G - 6 Q535 B - 4 D405 B - 2 D617 G - 6 Q601 K - 5 D406 B - 2 D618 H - 6 Q602 G - 5 D407 B - 3 D619 H - 6 Q603 G - 5 D408 B - 2 D620 M - 5 Q604 G - 5 D412 C - 3 D621 J - 5 Q606 G - 10 D414 B - 3 D623 J - 5 Q607 G - 9 D420 B - 1 D627 K - 7 Q608 J - 6 D421 C - 2 D631 L - 6 Q609 J - 6 D423 B - 2 D632 L - 5 D424 M - 2 D633 L - 5 A board IC Voltage Table IC Voltage Table Ref No P in No Voltage ( V) Ref No P in No Voltage ( V) 1 0 674. 8 2 3. 2 68 0. 4 3 2. 9 69 0 5 0 70 0 6 2. 0 71 0 8 2. 3 72 0 9 8. 0 73 7. 1 IC001 105. 0 74 5. 0 120 75 8. 1 130 76 -3. 5 144. 0 77 0 161. 4 78 3. 2 171. 5 79 3. 2 180 80 0 190 1 0. 3 203. 8 3 -12. 6 213. 8 IC501 5 0. 2 225. 0 6 13. 9 260 7 0. 3 283. 5 1 1. 4 293. 6 2 2. 3 301. 9 3 1. 8 IC531 310. 3 5 2. 4 323. 6 6 1. 6 IC001 341. 9 7 6. 4 351. 4 1 -80. 4 363. 9 2 -80. 5 381. 8 3 -80. 2 403. 3 4 -80. 2 423. 3 5 -81. 5 431. 4 6 -81. 6 450 7 -77. 8 460 IC601 9 -81. 8 473. 6 10 -76 482. 8 11 -81. 9 492. 3 12 -79. 4 500. 2 14 16. 5 512. 5 15 11 522. 5 16 14. 4 532. 5 18 86. 4 542. 1 1 11 555. 2 3 4. 9 563. 0 5 0 573. 1 6 0 583. 1 IC1201 7 11. 3 593. 2 9 0. 3 620 10 0 630 12 0 640 14 11. 35 650 A B C D E F G H I J K L M 1 2 3 4 5 6 7 A board Waveforms C board Waveforms 20us/div TP1 10us/div TP2 TP4 20us/div TP3 20us/div TP2 20us/div TP1 20us/div 8 6.0 Vp-p (H) 1.86 Vp-p (H) 1.84 Vp-p (H) 1.88 Vp-p (H) 20us/div 1.77 Vp-p (H) 1.88 Vp-p (H) 20us/div TP4 5ms/div TP8 20us/div TP7 20us/div 20us/div TP3 TP6 TP5 9 74 Vp-p (H) 1.88 Vp-p (H) 49.8 Vp-p (V) 1.83 Vp-p (V) 16.8 Vp-p (H) 5.4 Vp-p (H) 20us/div 20us/div TP5 TP6 20us/div TP9 TP10 5ms/div 5ms/div TP11 C board IC Voltage Table 10 e l b a T e g a t l o V C I 74 Vp-p (H) 74 Vp-p (H) Ref No P in No Voltage ( V) [ A PRINTED WIRING BOARD ] 20us/div TP7 50.8 Vp-p (V) 1.06 kVp-p (H) 488 mVp-p (V) 1 1. 3 2 1. 3 3 1. 4 NOTE: Portions of the circuit marked as shown are high voltage areas. Use care to prevent electric shock during inspection or repair. 6 4. 1 7 7. 0 5 4. 1 1 0 8 1 C I 1.76 Vp-p (H) C board Semiconductor Voltage Table R ef ( e) ( b) ( c) R ef ( e) ( b) ( c) R ef ( e) ( b) ( c) Q701 124. 2 124. 8 202 Q706 7. 5 8. 1 125. 0 Q712 125. 8 126. 4 201. 9 Q702 2. 3 3. 0 7. 5 Q707 124. 6 125. 8 5. 5 Q713 133. 0 132. 4 201. 9 Q703 7. 5 8. 1 131. 6 Q708 3. 5 2. 1 7. 5 Q715 132. 3 131. 5 8. 1 Q704 131 132. 4 5. 2 Q709 7. 5 8. 1 123. 3 Q716 125. 8 125. 0 8. 1 Q705 2. 5 3. 1 7. 5 Q710 123. 0 124. 3 5. 5 Q717 124. 2 123. 4 8. 1 8 8. 0 29 30 31 32
A B C D E F G R S T U V W X Y Z H I J K L M N O P Q 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 35 34 33 31 32 30 29 34 35 33 f e R B 1 T L 1 2 - V K E 1 T L 1 2 - V K K 1 T L 1 2 - V K U 1 T L 1 2 - V K K 2 T F 1 2 - V K 3 0 2 1 C F u 0 0 0 1 F u 0 0 0 1 F u 0 0 0 1 F u 0 0 0 1 m m 0 . 5 W J 8 2 2 1 C - - - - F u 0 0 2 2 1 0 2 1 N C , G U L P P 3 R O T C E N N O C , G U L P P 3 R O T C E N N O C , G U L P P 3 R O T C E N N O C , G U L P P 3 R O T C E N N O C , G U L P P 4 R O T C E N N O C 3 0 6 L H u 3 . 3 H u 3 . 3 H u 3 . 3 H u 3 . 3 m m 0 . 5 W J 0 0 2 1 L m m 0 . 5 W J m m 0 . 5 W J m m 0 . 5 W J m m 0 . 5 W J − 1 0 1 U T 1 1 4 F E - F T B 1 0 4 C E - F T B 1 0 4 P E - F T B 1 0 6 U E - F T B 1 0 4 P E - F T B
- 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 and 24: Memo 23
- Page 25: 5-2. BLOCK DIAGRAMS (1) IC604 2 1 D
- 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
[ C PRINTED WIRING BOARD ]<br />
C [ R, G, B OUT ]<br />
A board Semiconductor Voltage Table<br />
R ef<br />
( e)<br />
( b)<br />
( c)<br />
R ef<br />
( e)<br />
( b)<br />
( c)<br />
Q013 0 0. 7 0 Q604 0 0 2.<br />
5<br />
Q016 0 0 3. 3 Q608 0 0 5.<br />
6<br />
Q212 0 0. 7 0 Q609 5. 6 5. 6 0<br />
Q401 4. 8 4. 2 1.<br />
8<br />
Q411 1. 1 1. 7 4. 2 R ef<br />
( s)<br />
( g)<br />
( d)<br />
Q601 5. 6 4. 8 5. 3 Q606 10. 9 14. 5 86.<br />
7<br />
Q602 14. 2 5. 1 8 Q607 -82. 4 -79. 9 10.<br />
9<br />
Q603 8 8 0 Q535 0 2. 5 95.<br />
2<br />
A board Location Table<br />
DIODE D435 A - 2 D634 F - 10<br />
D001 J - 2 D436 A - 3 D639 I - 6<br />
D002 J - 4 D501 D - 9 D640 L - 5<br />
D003 J - 2 D502 D - 9 D1201 H - 1<br />
D004 M - 8 D503 I - 1 D1203 I - 4<br />
D006 M - 8 D504 H - 2 D1204 H - 4<br />
D007 J - 2 D505 J - 1<br />
IC<br />
D008 L - 1 D506 D - 5 IC001 K - 2<br />
D010 G - 2 D507 J - 1 IC002 M - 8<br />
D011 H - 2 D512 D - 8 IC003 I - 2<br />
D012 J - 2 D513 D - 9 IC004 K - 4<br />
D013 M - 8 D514 C - 9 IC401 I - 2<br />
D014 M - 8 D534 D - 4 IC501 D - 10<br />
D016 J - 2 D535 E - 6 IC531 E - 4<br />
D017 L - 1 D536 B - 6 IC601 F - 10<br />
D018 G - 2 D537 C - 4 IC602 F - 7<br />
D019 L - 1 D538 F - 6 IC604 H - 5<br />
D020 M - 8 D539 B - 5 IC608 L - 6<br />
D035 L - 2 D573 F - 5 IC609 L - 6<br />
D036 L - 2 D601 I - 9 IC1201 H - 4<br />
D051 K - 1 D602 K - 5 TRANSISTOR<br />
D101 B - 1 D604 F - 9 Q013 K - 3<br />
D103 E - 2 D610 J - 5 Q016 I - 3<br />
D104 E - 2 D611 G - 5 Q212 I - 5<br />
D210 I - 5 D612 G - 5 Q401 C - 1<br />
D211 I - 5 D613 J - 6 Q411 D - 1<br />
D212 I - 5 D614 K - 8 Q532 D - 4<br />
D402 B - 2 D615 H - 5 Q533 A - 6<br />
D404 I - 2 D616 G - 6 Q535 B - 4<br />
D405 B - 2 D617 G - 6 Q601 K - 5<br />
D406 B - 2 D618 H - 6 Q602 G - 5<br />
D407 B - 3 D619 H - 6 Q603 G - 5<br />
D408 B - 2 D620 M - 5 Q604 G - 5<br />
D412 C - 3 D621 J - 5 Q606 G - 10<br />
D414 B - 3 D623 J - 5 Q607 G - 9<br />
D420 B - 1 D627 K - 7 Q608 J - 6<br />
D421 C - 2 D631 L - 6 Q609 J - 6<br />
D423 B - 2 D632 L - 5<br />
D424 M - 2 D633 L - 5<br />
A board IC Voltage Table<br />
IC<br />
Voltage<br />
Table<br />
Ref No<br />
P in<br />
No<br />
Voltage ( V)<br />
Ref No<br />
P in<br />
No<br />
Voltage<br />
( V)<br />
1 0<br />
674. 8<br />
2 3. 2<br />
68 0.<br />
4<br />
3 2. 9<br />
69 0<br />
5 0 70 0<br />
6 2. 0<br />
71 0<br />
8 2. 3<br />
72 0<br />
9 8. 0<br />
73 7.<br />
1<br />
IC001<br />
105. 0<br />
74 5.<br />
0<br />
120 75 8.<br />
1<br />
130 76 -3.<br />
5<br />
144. 0<br />
77 0<br />
161. 4<br />
78 3.<br />
2<br />
171. 5<br />
79 3.<br />
2<br />
180 80 0<br />
190 1 0.<br />
3<br />
203. 8<br />
3 -12.<br />
6<br />
213. 8 IC501<br />
5 0.<br />
2<br />
225. 0<br />
6 13.<br />
9<br />
260 7 0.<br />
3<br />
283. 5<br />
1 1.<br />
4<br />
293. 6<br />
2 2.<br />
3<br />
301. 9<br />
3 1.<br />
8<br />
IC531<br />
310. 3<br />
5 2.<br />
4<br />
323. 6<br />
6 1.<br />
6<br />
IC001<br />
341. 9<br />
7 6.<br />
4<br />
351. 4<br />
1 -80.<br />
4<br />
363. 9<br />
2 -80.<br />
5<br />
381. 8<br />
3 -80.<br />
2<br />
403. 3<br />
4 -80.<br />
2<br />
423. 3<br />
5 -81.<br />
5<br />
431. 4<br />
6 -81.<br />
6<br />
450 7 -77.<br />
8<br />
460 IC601<br />
9 -81.<br />
8<br />
473. 6<br />
10 -76<br />
482. 8<br />
11 -81.<br />
9<br />
492. 3<br />
12 -79.<br />
4<br />
500. 2<br />
14 16.<br />
5<br />
512. 5<br />
15 11<br />
522. 5<br />
16 14.<br />
4<br />
532. 5<br />
18 86.<br />
4<br />
542. 1<br />
1 11<br />
555. 2<br />
3 4.<br />
9<br />
563. 0<br />
5 0<br />
573. 1<br />
6 0<br />
583. 1 IC1201<br />
7 11.<br />
3<br />
593. 2<br />
9 0.<br />
3<br />
620 10 0<br />
630 12 0<br />
640 14 11.<br />
35<br />
650 A B C D E F G H I J K L M<br />
1<br />
2<br />
3<br />
4<br />
5<br />
6<br />
7<br />
A board Waveforms<br />
C board Waveforms<br />
20us/div<br />
TP1 10us/div TP2<br />
TP4<br />
20us/div<br />
TP3<br />
20us/div<br />
TP2<br />
20us/div<br />
TP1<br />
20us/div<br />
8<br />
6.0 Vp-p (H)<br />
1.86 Vp-p (H)<br />
1.84 Vp-p (H)<br />
1.88 Vp-p (H)<br />
20us/div<br />
1.77 Vp-p (H) 1.88 Vp-p (H)<br />
20us/div<br />
TP4<br />
5ms/div<br />
TP8<br />
20us/div<br />
TP7<br />
20us/div<br />
20us/div<br />
TP3<br />
TP6<br />
TP5<br />
9<br />
74 Vp-p (H)<br />
1.88 Vp-p (H)<br />
49.8 Vp-p (V)<br />
1.83 Vp-p (V)<br />
16.8 Vp-p (H)<br />
5.4 Vp-p (H)<br />
20us/div 20us/div<br />
TP5 TP6<br />
20us/div<br />
TP9 TP10<br />
5ms/div<br />
5ms/div<br />
TP11<br />
C board IC Voltage Table<br />
10<br />
e<br />
l<br />
b<br />
a<br />
T<br />
e<br />
g<br />
a<br />
t<br />
l<br />
o<br />
V<br />
C<br />
I<br />
74 Vp-p (H) 74 Vp-p (H)<br />
Ref No<br />
P in<br />
No<br />
Voltage<br />
( V)<br />
[ A PRINTED WIRING BOARD ]<br />
20us/div<br />
TP7<br />
50.8 Vp-p (V)<br />
1.06 kVp-p (H)<br />
488 mVp-p (V)<br />
1 1.<br />
3<br />
2 1.<br />
3<br />
3 1.<br />
4<br />
NOTE:<br />
Portions of the circuit marked as shown are high<br />
voltage areas. Use care to prevent electric shock<br />
during inspection or repair.<br />
6 4.<br />
1<br />
7 7.<br />
0<br />
5 4.<br />
1<br />
1<br />
0<br />
8<br />
1<br />
C<br />
I<br />
1.76 Vp-p (H)<br />
C board Semiconductor Voltage Table<br />
R ef<br />
( e)<br />
( b)<br />
( c)<br />
R ef<br />
( e)<br />
( b)<br />
( c)<br />
R ef<br />
( e)<br />
( b)<br />
( c)<br />
Q701 124. 2 124. 8 202 Q706 7. 5 8. 1 125. 0 Q712 125. 8 126. 4 201.<br />
9<br />
Q702 2. 3 3. 0 7. 5 Q707 124. 6 125. 8 5. 5 Q713 133. 0 132. 4 201.<br />
9<br />
Q703 7. 5 8. 1 131. 6 Q708 3. 5 2. 1 7. 5 Q715 132. 3 131. 5 8.<br />
1<br />
Q704 131 132. 4 5. 2 Q709 7. 5 8. 1 123. 3 Q716 125. 8 125. 0 8.<br />
1<br />
Q705 2. 5 3. 1 7. 5 Q710 123. 0 124. 3 5. 5 Q717 124. 2 123. 4 8.<br />
1<br />
8 8.<br />
0<br />
29 30 31<br />
32
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