Read Sony CPD-G420 (serv.man4) Service Manual online
CPD-G420
— 17 —
4-3. BLOCK DIAGRAMS
A1 BLOCK DIAGRAM
A
TO D BOARD
CN1102
2
4
6
7
8
25
28
31
22
23
24
23
22
10
12
14
15
16
B1
G1
R1
V1
H1
G1
R1
V1
H1
OSD R
OSD G
OSD B
OSD BLK
V_DET
BLK
CLAMP
H OUT
V OUT
G.SYNC
R OUT
G OUT
B OUT
26
28
30
8
9
11
7
4
2
R OUT
G OUT
B OUT
5
3
1
R OUT
G OUT
B OUT
R IN
G IN
B IN
R IN
G IN
B IN
COF R
COF G
COF B
COF G
COF B
SCL
SDA
B2
G2
R2
V2
H2
13
22
23
SW
SCL
SDA
SDA
IC003
OSD
IC008
INPUT SELECT
IC001
RGB PRE-AMP
IC002
RGB AMP
15 14 13 12
18 20 1921
12 11 10
14
3
5
7
4
5
2
32
31
30
4
3
12
13
27
25
24
23
15
14
13
ROUT
GOUT
BOUT
GOUT
BOUT
SOG
SYNC IN
RCI
GCI
BCI
GCI
BCI
XTAL IN
HS OUT
VS OUT
ECO SW
VS OUT
ECO SW
SCL
SDA
SDA
HS OUT
VS OUT
VS OUT
ECO SW
SCL
SDA
SCL
SDA
HS OUT
VS OUT
ECO SW
HS IN
VS IN
CS IN
SDA
HS OUT
VS OUT
ECO SW
HS IN
VS IN
CS IN
RIN
GIN
BIN
GIN
BIN
IC004
CUT OFF AMP
IC011
HEATER REG
X001
24.5MHz
18 1921
H FLY
OSD R
OSD G
OSD B
OSD BLK
AV
BLK
CLP
BUFFER
Q101,
Q201,
Q301
1
2
4
6
7
8
9
2
4
6
7
8
9
+B
+B
+80V
+12V
7V
3.3V
5V
+B
+80V
+12V
7V
3.3V
5V
+B
+80V
+12V
+12V
7V
3.3V
5V
CN312
G2
1
G2
CN318
5
3
1
7
3
1
7
KR
KG
KB
HEATER+
KG
KB
HEATER+
CN315
5
3
1
7
3
1
7
KR
KG
KB
HEATER+
KG
KB
HEATER+
FV
FC
HV
CN318
V901
PICTURE TUBE
7
10 17 18
11 10
2
C
TO D BOARD
CN604
TO D BOARD
FBT
A1
(VIDEO AMP, RGB OUT)
R_IK
G_IK
B_IK
Vcc
OUT
VADJ
7V
9
10
11
11
6
7
8
1
4
7
8
1
4
15
16
16
2
3
3
13
DDC GND1
DDC SCL1
DDC SDA1
DDC GND2
DDC SCL2
DDC SDA2
H BLK
INPUT SW
IIC SCL
IIC SDA
HS OUT
VS OUT
ECO SW
DDC SCL1
DDC SDA1
DDC GND2
DDC SCL2
DDC SDA2
H BLK
INPUT SW
IIC SCL
IIC SDA
HS OUT
VS OUT
ECO SW
CN311
1
2
13
12
IC006
INVERTER
IC007
ROM
3
4
11
10
9
8
5
6
SDA
SCL
VCLK
SCL
VCLK
5
6
7
B
2
4
IC005
INVERTER
CN307
HD15
5
4
3
3
2
1
10
15
9
14
8
13
7
12
6
11
INPUT1(HD15)
5BNC
INPUT2
(BNC)
8
9
2
4
6
9
2
4
6
VD2
HD2
HD2
BLUE2
GREEN2
RED2
CN313
ı
ˇ
LED DRIVE
Q1400
D1400
A
G
LED DRIVE
Q1401
POWER
S1402
CONTROL /
CONTRAST
H1
(USER CONTROL)
2
3
4
5
8
3
4
5
8
WAKE UP
KEY SCAN
LED1
LED2
LED2
INPUT SW
CN1400
D
TO D BOARD
CN1103
Q1402
S1401
S1403
PICTURE
MODE
S1400
MENU
MENU
5V
INPUT1
INPUT2
SW
Q004
SW
Q005
VD
R
G
B
HD
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