SONY KV-38FX250T, KV-34FV10, KV-32FS10, KV-32FV15, KV-36FS10 SERVICE MANUAL Part4
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C BOARD SCHEMATIC DIAGRAM
G BOARD IC
VOLTAGE LIST
IC601 IC643
pin volt p in volt
B-1 -1.1 1 134.0
B-2 151.4 2 NC
C-1 152.8 3 2.4
C-2 298.6 4 9.3
E-1 GND 5 GND
E-2 152.1 IC650
IC622 pin volt
pin volt IN 13. 3
IN 6.9 OUT 11.8
OUT 5 .0 GND GND
GND GND IC651
IC641 pin volt
pin volt IN 11. 7
IN 11.5 OUT 5.0
OUT 9 .5 GND GND
GND GND
All voltages are in V
KV-32FS10/32FV15/32XBR250/34FV10/34FV15/34FV15C/34FX250C/34FV15K
34FV15T/36FS10/36FV15/36XBR250/38FX250/38FX250C/38FX250T/38FV15K
G BOARD SCHEMATIC DIAGRAM
C
[ RGB DRIVE, CRT DRIVE ]
C BOARD TRANSISTOR
VOLTAGE LIST
BCE
Q1790 4.8 GND 4.4
All voltages are in V
C BOARD IC
VOLTAGE LIST
IC1701
pin volt
1 1.8
2 1.9
3 2.0
4 GND
5 4.8
6 208.0
7 149.2
8 150.3
9 153.9
All voltages are in V
G BOARD TRANSISTOR
VOLTAGE LIST
BCE
Q622 0.4 1.7 GND
Q623 0.6 0 GND
Q624 12.6 0 12.2
Q644 0 11.8 GND
Q645 12.2 GND 9.1
Q646 6.2 6.9 6.9
Q647 0 12.2 GND
Q648 0.7 0 GND
Q649 11.5 0 11.8
Q650 0 2.2 GND
Q651 13.5 0 135.5
Q652 3.5 0 3.5
Q653 0 3.5 GND
All voltages are in V
G BOARD TRANSISTOR
VOLTAGE LIST
DGS
Q621 147.3 1.6 0
All voltages are in V
G BOARD
LOCATOR LIST
DIODE IC
D600 A- 5 IC601 D - 5
D601 A-8 IC622 A- 8
D602 C- 3 IC641 D-10
D603 B-7 IC643 B-8
D604 E-7 IC650 B-10
D605 A- 8 IC651 B-10
D606 A- 9
D607 D- 7 Q621 B-6
D608 E-7 Q622 B -5
D612 B -8 Q623 D - 7
D613 A-7 Q624 A -9
D614 B-11 Q644 B-11
D621 B -5 Q645 B-8
D622 B-5 Q646 A -8
D623 B-6 Q647 A -8
D624 A- 6 Q648 B-11
D625 A- 6 Q649 C-10
D626 A- 5 Q650 C-10
D627 A- 6 Q651 D -7
D628 A- 7 Q652 E -7
D629 E-3 Q653 E -7
D630 D - 4
D641 B- 9
D642 C-9
D643 D-8
D647 D-10
D648 D-9
D651 C- 9
D652 B-8
D653 E-8
D698 B-6
D699 B-6
TRANSISTOR
G
A
B
[ AC-RECT, DC-DC CONV., LOW B REG ]
1
234567891011
FOLDOUT 53-56 5/10/99, 1:55 PM1
C
C BOARD W A VEFORMS
1 2 3
139.0 Vp-p (H) 116.2 Vp-p (H) 126.1 Vp-p (H)
G BOARD (*) MARK LIST
REF. NO. LOCATION KV-36XBR250 KV-38FX250T
C603 B-3 1000p 2200p
C604 B-3 0.22 0.47
C605 B-2 0.22 0.47
C616 B-4 1000p 2200p
D
E
— 53 — — 54 — — 55 — — 56 —
KV-32FS10/32FV15/32XBR250/34FV10/34FV15/34FV15C/34FX250C/34FV15K
34FV15T/36FS10/36FV15/36XBR250/38FX250/38FX250C/38FX250T/38FV15K
GA BOARD SCHEMATIC DIAGRAM
GA BOARD IC
VOLTAGE LIST
IC6000 IC6002 IC6003
pin volt p in volt pin volt
REF 2.0 1 303.5 1 133.8
ANODE GND 2 158.7 2 NC
CATHODE 5.0 3 3.9 3 2.4
IC6001 4 NC 4 9.4
pin volt 5 4 .5 5 GND
1 17 .9 6 2. 1 IC6004
2 1 7. 9 7 3. 7 pin volt
3 17.9 8 GND IN 13.1
4 3.2 9 GND OUT 11.8
5 5 . 0 10 GND GND GND
6 3.3 11 GND IC6005
7 5.0 1 2 0 pin volt
8 3.2 1 3 0 IN 11.1
9 5.0 1 4 17.7 OUT 9.6
10 3.3 15 10.9 GND GND
11 4 .8 16 4. 8 IC6007
12 GND 17 0 pin volt
13 17.9 18 164.3 1 7.1
14 17.9 19 154.2 2 5.0
GA BOARD TRANSISTOR
VOLTAGE LIST
BCE
Q6000 0 11.8 GND
Q6001 0.7 0.1 GND
Q6002 11.9 0 11.9
Q6003 16.9 17.6 17.7
Q6004 0.7 0 GND
Q6005 0.5 -0.1 GND
Q6007 0.3 1.5 GND
Q6008 3.5 -0.1 3.5
Q6009 134.0 -0.1 134.5
Q6010 -0.1 3. 5 GND
Q6011 17.1 17.7 17.7
Q6012 18.0 0.5 17.9
All voltages are in V
GA BOARD
LOCATOR LIST
DIODE
D6000 I -5 D6042 J - 4
D6001 C - 4 D6043 C - 4
D6002 C -4 D6044 G-4
D6003 B - 4 D6045 B- 4
D6004 B -4 D6046 B-5
D6005 C - 5 D6047 C -5
D6006 C - 5 D6048 E -4
D6008 B -7 D6049 E-4
D6009 H - 2 D6050 C -3
D6010 D - 4 D6051 J-6
D6011 P -4 D6052 I - 4
D6012 E- 3
D6013 D-3 IC6000 C - 4
D6014 D- 3 IC6001 B - 3
D6015 C-2 IC6002 D-1
D6016 I- 2 IC6003 F-1
D6017 H-5 IC6004 I- 3
D6018 J- 5 IC6005 H- 2
D6019 H-5 IC6007 J -5
D6020 G -2
D6021 I -6 PH6001 E-1
3 GND
All voltages are in V
D6022 G -3 PH6002 F -3
D6023 G -3
D6024 G- 3 Q6000 I- 5
D6025 G - 4 Q6001 D-4
D6028 H - 2 Q6002 E -4
D6029 H - 2 Q6003 H - 3
D6030 G -2 Q6004 E-3
D6031 I- 6 Q6005 F -3
D6032 J -6 Q6006 H -6
D6034 H -5 Q6007 H - 6
D6035 H - 2 Q6008 H - 3
D6036 I -5 Q6009 H- 2
D6037 H-1 Q6010 H- 2
D6038 E - 4 Q6011 D- 3
D6040 J- 6 Q6012 C- 4
HX BOARD SCHEMATIC DIAGRAM
D6041 J - 4
IC
PHOTOCOUPLER
TRANSISTOR
GA
A
B
C
D
E
F
[ POWER SUPPLY ]
1
2345678
HA
HB
Schematic diagrams
C
[ FRONT A/V - MENU KEY ]
[ IR DETECTOR ]
boards
T
GA BOARD TRANSISTOR
VOLTAGE LIST
DGS
Q6006 150.0 1.5 GND
HX
All voltages are in V
[ KEY ]
G
H
I
T BOARD TRANSISTOR T BOARD IC
VOLTAGE LIST VOLTAGE LIST
HA BOARD SCHEMATIC DIAGRAM
T BOARD
LOCATOR LIST
DIODE
D401 A- 1
D402 B-3
D403 B-3
D404 C -4
D405 C -3
D406 C -2
D407 C-1
HB BOARD SCHEMATIC DIAGRAM
boardsGA HAGHXHB
— 57 — — 58 — — 59 — — 60 —
D408 C- 4
D409 C -3
D410 C- 2
D411 C-1
IC
IC401 A -3
TRANSISTOR
Q401 B-2
Q402 A - 2
Q403 A - 3
Q404 B-2
Q405 A-1
Q406 B-1
Q407 B-1
Q408 A-1
Q409 A-1
Q410 B-2
Q411 B-1
T
A
B
Q401 0.9 3.2 0.2 pin volt
Q402 0.9 3.2 0.2 1 1.9
Q403 7.8 8.8 8.5 2 0.1
Q404 0.6 0.1 1.2 3 1.9
Q405 0.6 0.1 1.2 4 0.1
Q406 1.2 2.7 0.6 5 0.2
Q407 1.2 2.7 0.6 6 7.8
Q408 1.2 2.5 0.6 7 1.9
Q409 1.2 2.5 0.6 8 0.1
Q410 0.6 0.1 1.2 9 1.9
Q411 0.6 0.1 1.2 All voltages are in V
[ IR HEADPHONES ]
1
B C E IC401
T BOARD SCHEMATIC DIAGRAM
All voltages are in V
234
J
FOLDOUT 57-60 5/10/99, 4:30 PM2
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