C Board - Sony Trinitron KV-27FV15 Service Manual

C BOARD SCHEMATIC DIAGRAM
C
[ RGB DRIVE, CRT DRIVE ]
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FOLDOUT 49-52 1
G BOARD IC
VOLTAGE LIST
IC6000 IC643
pin volt pin
REF 2.5 1
ANODE GND 2
5.0 3
CATHODE
IC601 4
pin volt 5
B-1 -1.0 IC650
B-2 150.5 pin
C-1 151.5 IN
C-2 298.5 OUT
E-1 GND GND
E-2 151.7 IC651
IC622 pin
pin volt IN
IN 7.0 OUT
OUT 4.9 GND
GND GND
All voltages are in V
IC642
pin volt
IN 12.0
OUT 9.5
GND 0.4
G BOARD TRANSISTOR
VOLTAGE LIST
B C
Q622 0.5 1.7
Q623 0.7 0
Q624 12.8 0
Q644 0 12.0
Q645 11.8 GND
Q646 6.3 7.0
Q647 0 11.7
Q648 0.7 0.1
Q649 12.0 0
Q650 0 2.3
Q651 135.2 0
Q652 3.6 0
Q653 0 3.6
All voltages are in V
G BOARD TRANSISTOR
C BOARD TRANSISTOR
VOLTAGE LIST
VOLTAGE LIST
D G
B C E Q621 147.7 1.7
Q1790 4.7 GND 4.4
All voltages are in V
All voltages are in V
C BOARD IC
VOLTAGE LIST
G BOARD
IC1701 LOCATOR LIST
pin volt
DIODE IC
1 1.8
D600 A-5 IC601
2 1.9
D601 A-8 IC622
3 2.1
D602 C-3 IC641
4 gnd
D603 B-7 IC643
5 4.7
D604 E-7 IC650
6 205.8
D605 A-8 IC651
7 139.6
TRANSISTOR
D606 A-9
8 149.8
D607 D-7 Q621
9 152.2
D608 E-7 Q622
All voltages are in V
D612 B-8 Q623
D613 A-7 Q624
D614 B-11 Q644
D621 B-5 Q645
D622 B-5 Q646
D623 B-6 Q647
D624 A-6 Q648
C BOARD WAVEFORMS D625 A-6 Q649
D626 A-5 Q650
D627 A-6 Q651
1 2 3
D628 A-7 Q652
D629 E-3 Q653
D630 D-4
D641 B-9
164.1 Vp-p (H) 114.4 Vp-p (H) 126.3 Vp-p (H) 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
— 50 —
G BOARD SCHEMATIC DIAGRAM
volt
134.2
NC
2.4
8.8
GND
volt
13.6
11.9
GND
volt
12.1
4.9
GND
E
GND
GND
11.8
GND
8.8
7.0
GND
GND
12.3
GND
135.5
3.6
GND
S
0
G
[ AC-RECT, DC-DC CONV., LOW B REG ]
1 2 3 4
D-5
A-8
D-10
A
B-8
B-10
B-10
B-6
B-5
D-7
B
A-9
B-11
B-8
A-8
A-8
B-11
C-10
C-10 C
D-7
E-7
E-7
D
E
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4/15/99, 3:05 PM
5 6 7 8 9 10 11
— 52 —
KV-27FV15/29FV10/29FV15/29FV15C/29FV15K