DOWNLOAD Sony CPD-G420 (serv.man3) Service Manual ↓ Size: 3.93 MB | Pages: 80 in PDF or view online for FREE

Name: Sony CPD-G420 (serv.man3)
Brand: Sony
SKU: 11950
Rating: 4 (1 reviews)

Model: CPD-G420 (serv.man3)
Pages: 80
Size: 3.93 MB
Type: PDF
Document: Service Manual
Brand: Sony
Device: Monitor
File: cpd-g420-sm3.pdf
Date: 2018-11-20

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CPD-G420(E)
4-3
+
–
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
5
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
IC503  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
B-SS3540<SH.>-BD3-EPS05
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
HSHAPE
REFDC
HD OUT
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
13
4
16
15
3
2
1
DDC SDA1
DDC SCL1
DDC GND1
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 OUT
HSHAPE
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
LCC NS
IIC SDA
IIC SCL
6
7
8
LCC NS
IIC SDA
IIC SCL
CN1106
F
TO L2 BOARD
CN1603
I
TO N BOARD
CN1001
34
32
7
9
11
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
IK SIGMA
LB DET
DDC SDA1
DDC SCL1
DDC GND1
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
+15V

CPD-G420(E)
4-4
4-2. FRAME  SCHEMATIC  DIAGRAM
AC IN
D
HV
DEFLECTION,HDF,VDF,
HV, POWER SUPPLY
H
G1 G2
HG
RGB
PICTURE
TUBE
1.2kV
CN504
1P
1
1
2
CN318
2P
G2
G2(NC)
CN1001
44P
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
NC
GND
NC
NC
POC
PLL LOCK
GND
S7
WAKE UP
KEY SCAN
IK SIGMA
LED1
LB DET
LED2
V.FBP
INPUT SW
S0
+5V
S1
DGC SW
S2
PWR SW
GND
HTR SW
GND
GND
S3
DDC GND2
S4
DDC SCL2
S5
DDC SDA2
S6
DDC GND1
G2
DDC SCL1
ABL DET
DDC SDA1
HV DET
ECO SW
RXD
IIC SCL
TXD
IIC SDA
CN1104
44P
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
NC
GND
NC
NC
POC
PLL LOCK
GND
S7
WAKE UP
KEY SCAN
IK SIGMA
LED1
LB DET
LED2
V.FBP
INPUT SW
S0
+5V
S1
DGC SW
S2
PWR SW
GND
HTR SW
GND
GND
S3
DDC GND2
S4
DDC SCL2
S5
DDC SDA2
S6
DDC GND1
G2
DDC SCL1
ABL DET
DDC SDA1
HV DET
ECO SW
RXD
IIC SCL
TXD
IIC SDA
CN311
17P
WHT
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
GND
IIC SDA
IIC SCA
GND
ECO SW
GND
DDC SDA1
DDC SCL1
DDC GND1
DDC SDA2
DDC SCL2
DDC GND2
GND
INPUT SW
VS OUT
HS OUT
H BLK
CN312
9P
WHT
9
8
7
6
5
4
3
2
1
5V
3.3V
7V
+12V
GND
+80V
NC
+B
+B
CN604
9P
BLK
9
8
7
6
5
4
3
2
1
5V
3.3V
7V
+12V
GND
+80V
NC
+B
+B
CN605
4P
WHT
:S-MICRO
4
3
2
1
GND
GND
6.5V
6.5V
CN1102
17P
BLK
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
GND
IIC SDA
IIC SCA
GND
ECO SW
GND
DDC SDA1
DDC SCL1
DDC GND1
DDC SDA2
DDC SCL2
DDC GND2
GND
INPUT SW
VS OUT
HS OUT
H BLK
N
(
µ
-COM)
H1
(USER CONTROL)
US
(USB CONTROL)
DA
(DPU)
A1
(VIDEO AMP, RGB OUT )
CN1101
40P
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
CN502
40P
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
XSC
YSC
D.TILT
XDC
HFBP
YDC
HD OUT
REFDC
HSHAPE
+12V
NC
+12V
A.GND
3.3V
D.GND
D.GND
HSAW_SW
GXSC
LCC NS
GYSC
IIC SDA
IIC SCL
A.GND
A.GND
H.LINBAL
H BLK
NC
HS OUT
DCC2
VS OUT
VSAWN
NC
A.GND
PLL LOCK
A.GND
POC
A.GND
A.GND
V.DF
H.DF
XSC
YSC
D.TILT
XDC
HFBP
YDC
HD OUT
REFDC
HSHAPE
+12V
NC
+12V
A.GND
3.3V
D.GND
D.GND
HSAW_SW
GXSC
LCC NS
GYSC
IIC SDA
IIC SCL
A.GND
A.GND
H.LINBAL
H BLK
NC
HS OUT
DCC2
VS OUT
VSAWN
NC
A.GND
PLL LOCK
A.GND
POC
A.GND
A.GND
V.DF
H.DF
CN1103
8P
WHT
8
7
6
5
4
3
2
1
INPUT SW
+5V
GND
LED 2
LED 1
KEY SCAN
WAKE UP
+12V
10
9
8
7
6
5
4
3
2
1
ROTATION+
ROTATION–
XSC–
XSC+
YSC–
YSC+
XDC–
XDC+
YDC–
YDC+
CN701
10P
WHT
:S-MICRO
ROTATION
V DY
H DY
CN501
6P
WHT
:VH
1
2
3
4
5
6
V+
V–
NC
H–
NC
H+
DGC
1
2
3
4
DGC
NC
NC
DGC
CN601
4P
WHT
:VH
CN602
3P
WHT
:VH
1
2
3
AC L
NC
AC N
1
2
3
4
D GND
+5V
RXD
TXD
CN1101
4P
WHT
TO ECS
CN2601
4P
1
2
3
4
6.5V
6.5V
GND
GND
LCC-NS
B-SS3540<SH.>-KESSENZU-EPS05
L2
(CY, LCC)
CN1101
40P
1
2
3
4
5
6
7
8
CN1603
8P
WHT
1
2
3
4
5
6
7
8
-15V
+15V
GND
GXSC
GYSC
LCC_NS
IIC SDA
IIC SCL
-15V
+15V
GND
GXSC
GYSC
LCC_NS
IIC SDA
IIC SCL
1
2
LCC-NS (+)
LCC-NS (–)
CN1600
2P
WHT
:S-MICRO
1
2
3
4
5
6
7
8
LCC-LT (+)
LCC-LT (–)
LCC-LB (+)
LCC-LB (–)
LCC-RT (+)
LCC-RT (–)
LCC-RB (+)
LCC-RB (–)
CN1602
LCC-LT
LCC-LB
LCC-RT
LCC-RB
T_AMB
GND
GND
GND
INPUT SW
+5V
GND
LED 2
LED 1
KEY SCAN
WAKE UP
+12V
CN1400
12P
CN1003
6P
:S-MICRO (L)
12
11
10
9
8
7
6
5
4
3
2
1
1
2
3
4
5
6
GND
VX (NC)
VY (NC)
T_AMB
LUMI (NC)
5V (NC)
INPUT1
(HD15)
CN307
HD15D-SUB
5
4
3
2
1
10
9
8
7
6
15
14
13
12
11
INPUT2
(BNC)
5BNC
1
2
3
4
5
6
7
8
9
CN313
9P
:XA
R
G
B
HD
VD
B.GND2
BLUE2
G.GND2
GREEN2
R.GND2
RED2
GND
VD2
HD2

CPD-G420(E)
4-5
4-3. CIRCUIT  BOARDS  LOCATION
A1
N
L2
US
H1
D
DA

CPD-G420(E)
4-6
Note:
•
All capacitors are in µF unless otherwise noted. (pF:  µµF)
Capacitors without voltage indication are all 50 V.
•
Indication of resistance, which does not have one for rating electrical power, is as follows.
Pitch: 5 mm
Rating electrical power 1/4 W (CHIP : 1/10 W)
• All resistors are in ohms.
•
f
: nonflammable resistor.
•
Ï
: fusible resistor.
•
f
: internal component.
•
p
: panel designation, and adjustment for repair.
• All variable and adjustable resistors have characteristic curve B, unless otherwise noted.
•
e
: earth-ground.
•
E
: earth-chassis.
• The components identified by 
[
 in this basic schematic diagram have been carefully factory-selected for each
set in order to satisfy regulations regarding X-ray radiation.
Should replacement be required, replace only with the value originally used.
• When replacing components identified by 
]
, make the necessary adjustments indicated. (See page 2-1)
• When replacing the part in below table, be sure to perform the related adjustment.
• All voltages are in V.
• Readings are taken with a 10 M  digital multimeter.
• Readings are taken with a color-bar signal input.
• Voltage variations may be noted due to normal production tolerances.
•
*
: Can not be measured.
• Circled numbers are waveform references.
•
s
: B + bus.
•
S
: B – bus.
4-4. SCHEMATIC  DIAGRAMS  AND  PRINTED  WIRING  BOARDS
Note: The components identified by shading and
mark 
!
 are critical for safety. Replace only
with part number specified.

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