CPD-G420 (serv.man4) - Sony Monitor Service Manual (repair manual). Page 17

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CPD-G420
— 18 —
 
 D BLOCK DIAGRAM
+
-
T504
:HST
L502
:HLC
IC501  PWN CONT
T501
:HDT
T503
:LCT
15V
H DRIVE BUFF
Q501-503
RELAY DRIVE
Q611
H DRIVE
Q504
H OUT
Q505
HV OUT
Q902
HV REG SW
Q901
+B
BUFF
Q507
S CAP
CANGE
Q511-516
6
3
1
2
4
8
OUT
ISENS
IC630  REG
7
5
16
15
14
13
11
9
7
6
14
11
12
18
3
10
9
IC902  AMP
7
5
6
+ 
-
H LIN BAL SW
Q510
1
4
DGC
DGC
CN601
1
2
3
AC L
NC
AC N
CN602
F601
D610
AC RECT
D650
RY603
RY602
T601
:LFT
AC IN
DGC
THP601
TH601
VCC SW
Q610
IC701  CY AMP
D.TILT
YSC
YDC
REFDC
IC654
12V REG
+12V
IC610  PFI
T620
4
3
2
1
8
5
T630  :SRT
6
3
4
6
7
INA -
INA+
INB+
INB -
1
2
8
9
IOUTA
OUTA
OUTB
IOUTB
IC901  HV CONT
14
11
12
10
3
5
+
-
Width
XDC
XSC
IC702  CY AMP
5
4
3
2
10
-IN A (X)
+IN A (X)
+IN B (Y)
-IN B (Y)
STBY
6
1
OUT A (X)
OUT  B (Y)
T901
:FBT
TO
PICTURE TUBE
TO
PICTURE
TUBE
TO
PICTURE 
TUBE
HV
FV
FC
G2
CN510
V DY
H DY
CN501
B
H
10
9
8
7
6
5
4
3
2
1
ROTATION+
ROTATION -
XSC -
XSC+
YSC -
YSC+
XDC -
XDC+
YDC -
YDC+
CN701
1
2
4
6
7
8
9
+B
+B
+80V
+12V
7V
3.3V
5V
CN604
17
13
14
15
16
11
12
1
4
2
8
6
T902
:HRC
PIN OUT
Q506
PIN DRIVE
Q508-509
+B
S501
(RASTER CENTER TAP SWITCH)
L510
:HOC
1
2
4
6
1
V+
V -
H -
H+
D
DEFLECTION , HDF, VDF,
HV, POWER SUPPLY
H SAW GEN
S601
L610
AFC
AC SEN
DRAIN
L SEN CATHODE
3
1
8
9
1
5 10
3
2
REG SW
Q630
COMP
FB
RT/CT
VREF
16
15
14
10
12
9
2
1
VG (H)
VS
VB
VC2
VG (L)
OCP
IC620  REG  OUT
FB
VSENSE
4
3
3
2
1
1
PH630
IC680
4
3
2
1
PH610
4
3
2
1
PH620
+B
+15V
5V
3.3V
+80V
-15V
7V
+15V
D652
5V
3.3V
IC652
3.3V/5.5V REG  
CTL
Vcc
4
1
5
2
PROTECT
Q652
1
2
L509
:HCC
ERRIN
REFIN
HDIN
MIX -
MIX+
VREG9
PWMOUT
MIXOUT
ERROUT
IC703
ROTATION DRIVE
4
2
1
+
-
3.3V
3.3V
ROTATION
1
7
5
3
6
+
-
OUT
IC401  V OUT
H DF OUT
Q701-705
V DF OUT
Q706, 707
T701
:DFT
CN605
1
2
7V
7V
+B
+80V
+12V
7V
3.3V
5V
7V
IIC SDA
IIC SCL
TXD
RXD
WAKE UP
KEY SCAN
LED1
LED2
PLL LOCK
POC
HV DET
ABL DET
G2
S6
S5
S4
S3
S2
S1
S0
PWR SW
DGC SW
V.FBP
IIC SCL
IIC SDA
VSOUT
HSOUT
H BLK
GXSC
GYSC
LCC NS
PLL LOCK
POC
H.DF
V.DF
VSAWN
DCC2
H.LINBAL
  HSP
REFDC
  HD 
YDC
HFBP
XDC
D.TILT
YSC
XSC
G
TO DA BOARD
CN1101
19
20
11
13
15
21
23
22
7
5
1
2
10
12
16
24
32
33
34
35
36
37
38
39
40
IIC SCL
IIC SDA
VSOUT
HSOUT
H BLK
GXSC
GYSC
LCC NS
PLL LOCK
POC
H.DF
V.DF
VSAWN
DCC2
H.LINBAL
HSAW_SW(NC)
HSHAPE
REFDC
HD OUT
YDC
HFBP
XDC
D.TILT
YSC
XSC
CN502
TO US BOARD
CN2601
C
TO A1 BOARD
CN312
11
10
9
8
7
6
13
4
16
15
3
2
1
DDC SDA1
DDC SCL1
DDC GND1
DDC SDA2
DDC SCL2
DDC GND2
ECO SW
INPUT SW
IIC SDA
IIC SCL
VS OUT
HS OUT
H BLK
CN1102
A
TO A1 BOARD
CN311
2
3
4
5
8
WAKE UP
KEY SCAN
LED1
LED2
INPUT SW
CN1103
D
TO H1 BOARD
CN1400
CN1101
4
3
TXD
RXD
ECS
+15V
DGC SW
PWR SW
H.DF
V.DF
HFBP
DCC2
VSAWN
V.FBP
HV DET
ABL DET
G2
HD 
HSP
S1
S2
S3
S4
S5
S6
H.LINBAL
H LIN BAL DRIVE
Q518, 520
IC640
+B DETECT ERROR AMP
G2 OUT
Q905
G2 MUTE
Q906
G2 MUTE
Q907
SIZE DETECT BUFF
Q519
H-SIZE FILTER SW
Q523
H-SIZE FILTER SW
Q524
MAIN CONVERTER
OUT
Q641
MAIN CONVERTER
OUT
Q640
IIC SDA
IIC SCL
VS OUT
HS OUT
H BLK
TXD
RXD
WAKE UP
KEY SCAN
LED1
LED2
I
TO N BOARD
CN1001
32
7
9
11
13
15
17
5
29
1
3
2
4
36
35
33
31
39
40
6
8
10
12
14
16
18
24
26
28
23
25
30
LB DET
DDC SDA1
DDC SCL1
DDC GND1
DDC SDA2
DDC SCL2
DDC GND2
ECO SW
INPUT SW
IIC SDA
IIC SCL
TXD
RXD
WAKE UP
KEY SCAN
LED1
LED2
PLL LOCK
POC
HV DET
ABL DET
G2
S6
S5
S4
S3
S2
S1
S0
PWR SW
DGC SW
V.FBP
CN1104
Display
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