Sony TRINITRON CPD-G500 Service Manual page 31

CONNECTOR PANEL
TO A BOARD
CN402
VD HD B G R
5BNC
INPUT2(BNC)
B-SS3484<J..>-A..-P2-EPS05
TO N BOARD
CN002
• A BOARD WAVEFORMS
1 2 3
4.7 Vp-p (H) 66.0 Vp-p (H) 4.8 Vp-p (H)
4 5
6
64.0 Vp-p (H) 4.6 Vp-p (H) 64.0 Vp-p (H)
7
8
9
65.0 Vp-p (H) 64.0 Vp-p (H) 64.0 Vp-p (H)
0
2.2 Vp-p (8MHz)
5-13
RCV
V901
PICTURE
H
TUBE
21TKC
KB KR G2 G4
KG G1 GM
HV
TO D BOARD
T902(FBT)HV
• A BOARD IC401 M52757FP
36 35 34 33 32 31 30 29 28
R G B
1 2 3 4 5 6 7 8 9
• A BOARD IC402 M52749FP
OSD IN (R)
4
SUB MAIN
INPUT (R) 2 CLAMP
CONTRAST CONTRAST
VCC1 (R) 3
GND1 (R) 5
OSD IN (G) 9
SUB MAIN
INPUT (G) 6 CLAMP
CONTRAST CONTRAST
VCC1 (G)
8
GND1 (G) 10
OSD IN (B) 13
SUB MAIN
INPUT (B) 11 CLAMP
CONTRAST CONTRAST
VCC1 (B) 12
GND1 (B) 16
ABL IN 17
CONTRAST
Sync On
INPUT (SOG) 7 Green
Sep
SOG Sep OUT 20
21 14
27 26 25 24 23 22 21 20 19
G
Sync
OR
Sepa
10 11 12 13 14 15 16 17 18
42 34 30
RETRACE
OSD MIX AMP 41 OUTPUT (R)
BLANKING
CLAMP
F/B
RETRACE
OSD MIX AMP 38 OUTPUT (G)
BLANKING
CLAMP
F/B
RETRACE
OSD MIX AMP 33
OUTPUT (B)
BLANKING
35
Contrast ref.
CLAMP
F/B
31
OSD Contrast cont.
LEVEL
Main
4bit
19
VCC=5V
8bit
23 SDA
B SUB CONT 8bit
BUS
DAC
G SUB CONT 8bit I/F
22 SCL
R SUB CONT 8bit
24 GND (5V)
1 25 26 27 28 29 32 36 39
5-14