5-13
5-14
• A BOARD
IC401 M52757FP
1
2
3
4
6
7
5
8
9
• A BOARD WAVEFORMS
4.6 Vp-p (H)
66.0 Vp-p (H)
64.0 Vp-p (H)
65.0 Vp-p (H)
4.8 Vp-p (H)
64.0 Vp-p (H)
4.7 Vp-p (H)
64.0 Vp-p (H)
64.0 Vp-p (H)
• A BOARD
IC402 M52749FP
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Sync
Sepa
OR
G DET
Input1 (R)
Vcc1 (R)
Input1 (G)
Vcc1 (G)
Input1 (B)
Vcc1 (B)
Input2 (R)
GND1
Input2 (G)
GND5
Input2 (B)
Sync DET1
Sync DET2
S-DET out
Vcc5
Video DET
-Hold
V
-DET out
SWITCH
Vcc2 (R)
OUTPUT (R)
GND2 (R)
Vcc2 (G)
OUTPUT (G)
GND2 (G)
Vcc2 (B)
OUTPUT (B)
GND2 (B)
G Buff
er out
Sync SEP in
Sync SEP out
Vcc3
V
-DET in3
GND4
V
-DET in2
Vcc4
V
-DET in1
R
G
B
G
2
4
CLAMP
SUB
CONTRAST
MAIN
CONTRAST
OSD MIX
AMP
CLAMP
F/B
RETRACE
BLANKING
41
30
34
42
6
9
5
3
CLAMP
SUB
CONTRAST
MAIN
CONTRAST
OSD MIX
AMP
CLAMP
F/B
RETRACE
BLANKING
38
11
13
10
8
17
16
21
25 26 27 28 29
32
36
39
14
1
12
20
7
CLAMP
SUB
CONTRAST
MAIN
CONTRAST
OSD MIX
DAC
BUS
I/F
AMP
CLAMP
F/B
OSD
LEVEL
4bit
Main
CONTRAST
8bit
B SUB CONT 8bit
G SUB CONT 8bit
R SUB CONT 8bit
RETRACE
BLANKING
33
35
31
24
22
23
19
Sync On
Green
Sep
OSD BLK IN
INPUT (R)
VCC1 (R)
OSD IN (R)
GND1 (R)
INPUT (G)
INPUT (SOG)
VCC1 (G)
OSD IN (G)
GND1 (G)
INPUT (B)
VCC1 (B)
OSD IN (B)
GND
GND1 (B)
ABL IN
VCC=5V
SOG Sep OUT
Clamp Pulse IN
VCC2
OUTPUT (R)
GND2
OUTPUT (G)
GND
Contrast ref.
Main Br
ightness
OUTPUT (B)
GND
Contrast cont.
Retr
ace BLK IN
D/A OUT1
D/A OUT2
D/A OUT3
D/A OUT4
D/A OUT5
GND (5V)
SDA
SCL
H
KB
KG
KR
G1
G2
GM
G4
RCV
HV
CONNECTOR PANEL
INPUT2(BNC)
CN402
TO A BOARD
TO N BOARD
CN002
PICTURE
TUBE
V901
21TKR
TO D BOARD
T902(FBT)HV
B-SS3531<U/C>-A..-P2-EPS05
VD
HD
B
G
R
5BNC
0
2.2 Vp-p (8MHz)