Sony CPD-G420 (serv.man2) Service Manual ▷ View online
CPD-G420
2-3. A1 BOARD, US BOARD REMOVAL
2-2
2-2. A1 BOARD (C BLOCK) REMOVAL
1
A1 board
CN315
CN318
GND
GND
Two screws
(+BVTT 4 x 6)
(+BVTT 4 x 6)
2
Video block assembly
11
Screw (+BVTT 4 x 6)
13
Five screws
(+BVTT 3 x 8)
(+BVTT 3 x 8)
14
USB case
15
US board
12
USB block assembly
3
Four screws
(+BVTP 3 x 8)
(+BVTP 3 x 8)
Screw
(+BVTP 3 X 10)
(+BVTP 3 X 10)
9
Video case
8
Input/out
terminal board assembly
[NH]
terminal board assembly
[NH]
CN315
CN313
CN2601
1
6
Two screws
(+BVTP 3 X 8) [NH]
(+BVTP 3 X 8) [NH]
7
5
Two screws (HEX)
10
A1 board
4
Video shield
CPD-G420
2-4. BEZEL ASSEMBLY, H1 BOARD REMOVAL
2-5. D BOARD REMOVAL
2-3
2
1
Four tapping screws (5)
5
Bezel assembly
3
Screw
(+BVTP 4 x 16)
(+BVTP 4 x 16)
4
Screw
(+BVTP 4 x 16)
(+BVTP 4 x 16)
6
Three screws
(+BVTP 3 x 10)
(+BVTP 3 x 10)
9
H1 board
8
Joy stick
7
Input
selection button
selection button
CN1400
Picture tube shield
Before removing the bezel assembly, secure
the picture tube by attaching two screws to
the picture tube shield at the positions shown
with an arrow (diagonal two places) to prevent
the picture tube from falling.
(Use the screws +BVTT 4 x 8 that fix EMI shield.)
the picture tube shield at the positions shown
with an arrow (diagonal two places) to prevent
the picture tube from falling.
(Use the screws +BVTT 4 x 8 that fix EMI shield.)
1
A1 board
(C block)
(C block)
2
Two screws
(+BVTT 4 x 6)
(+BVTT 4 x 6)
6
Two screws
(+BVTP 3 x 8)
(+BVTP 3 x 8)
#3
Pig tail cover
[
AEP
]
10
D board
4
Video block assembly
5
Cable with connector [
AEP
]
7
Rear plate assembly
Screw (+BVTT 3 x 8)
8
Five screws
(+BVTP 3 x 10)
(+BVTP 3 x 10)
CN315
#3
CN305 [
AEP
]
#3
CN321 [
AEP
]
#3
GND [
AEP
]
CN601
CN602
CN605
CN1103
Connector (2P)
CN501
GND
GND
CN
9
3
#3
CPD-G420
2-6. SERVICE POSITION
2-4
1
2
3
4
1
Remove the D board.
D board
2
Remove the Video block assembly.
3
Install the Adaptor board (XT MOUNT) (A-1391-123-A).
4
Lay the Video block assembly.
Video block assembly
Video block assembly
5
5
Install the video block assembly.
6
Put a box which is about 15cm in height under the D board to fix it.
(Please disconnect the CN 701 first.)
(Please disconnect the CN 701 first.)
D board
Box
CPD-G420
3
When one side of the rubber cap is
separated from the anode button, the
anode-cap can be removed by turning
up the rubber cap and pulling up it in the
direction of the arrow
separated from the anode button, the
anode-cap can be removed by turning
up the rubber cap and pulling up it in the
direction of the arrow
c
.
•
HOW TO HANDLE AN ANODE-CAP
1
Don’t scratch the surface of anode-caps with sharp shaped
material!
material!
2
Don’t press the rubber hardly not to damage inside of anode-
caps!
A material fitting called as shatter-hook terminal is built in the
rubber.
caps!
A material fitting called as shatter-hook terminal is built in the
rubber.
3
Don’t turn the foot of rubber over hardly!
The shatter-hook terminal will stick out or damage the rubber.
The shatter-hook terminal will stick out or damage the rubber.
•
REMOVAL OF ANODE-CAP
NOTE: Short circuit the anode of the picture tube and the anode cap to the metal chassis, CRT shield or carbon painted on the CRT, after
removing the anode.
•
REMOVING PROCEDURES
1
Turn up one side of the rubber cap in
the direction indicated by the arrow
the direction indicated by the arrow
a
.
2
Using a thumb pull up the rubber cap
firmly in the direction indicated by the
arrow
firmly in the direction indicated by the
arrow
b
.
2-7. PICTURE TUBE REMOVAL
a
b
c
Anode Button
2-5
4
Picture tube
1
Anode cap
2
A1 board (C block)
3
Neck assembly
CN1
CN
Connector (2p)
GND
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