Sony GDM-FW900 Service Manual ▷ View online
GDM-FW900
2-6. N BOARD REMOVAL
2-3
CN3003
CN3002
CN3001
2
S board
1
Screw
(+ BVTT4 x 8)
2
N board
1
Two printed circuit board holders
CN010
CN011
CN001
CN007
CN002
CN003
CN5002
CN5001
CN5003
2-5. S BOARD REMOVAL
GDM-FW900
2-4
2-8. PICTURE TUBE REMOVAL
2-7. SERVICE POSITION
D board (Refer to 2-2.)
CN602
Rear shield
D,G boards
G board
(Refer to 2-3.)
AC inlet (3P)
CAUTION : SHORT
If the claw is hooked,
opening and closing
the board is impossible.
Do not try to do it by force.
opening and closing
the board is impossible.
Do not try to do it by force.
If the claw is hooked,
opening and closing
the board is impossible.
Do not try to do it by force.
opening and closing
the board is impossible.
Do not try to do it by force.
GND
P5
P6
0
Picture tube
8
Anode cap
!™
Neck assembly
!¡
Deflection yoke
5
Bezel
3
Four screws
(Tapping screw 7 + crown washer)
4
Four screws
(+BVTP 4 x 16)
9
Four screws
(+BVTT 4 x 8)
1
Open the D block.
(Refer to 2-2.)
2
Open the G block.
(Refer to 2-3.)
6
A board
7
Three connectors
PROTECTION SHEET
NOTE: When replaced the picture tube,
NOTE: When replaced the picture tube,
stick the PROTECTION SHEET
(Part No. 4-036-700-01) on the
picture tube band.
(Part No. 4-036-700-01) on the
picture tube band.
GDM-FW900
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
.
a
b
c
Anode Button
2-5
2-9. CONTROL BLOCK ASSY REMOVAL
1
Two screws
(+ BVTT 4 x 8)
3
Two screws
(+ BVTP 3 x 12)
4
Control block assembly
2
Picture tube shield
complete assembly
Connector(4P)
Connector(11P)
GND
Connector(2P)
Connector(4P)
Connector(2P)
Holder
Remove the picture tube.(Refer to 2-8.)
GDM-FW900
2-6
2-10. J BOARD REMOVAL
CN891
1
Claw
Two hooks
2
J board
Remove the control block assembly.(Refer to 2-9.)
2-11. US BOARD REMOVAL
5
US board
2
Stand cover
4
USB shield
Cushion
1
Two screws
(+BVTP 3 x 12)
3
Four screws
(+BVTP 3 x 12)
CN2601
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