Sony KDF-42WE655 / KDF-50WE655 Service Manual ▷ View online
14
KDF-42WE655/50WE655
KDF-42WE655/50WE655
1-3. SERVICE
POSITION
1-4.
FAN AND CHASSIS ASSEMBLY REMOVAL
Pull back on claw, then gently pull out chassis assembly
Chassis assembly
1
Pull back on claw,
then gently pull out chassis assembly
then gently pull out chassis assembly
Four screws
(+PWH 4x35)
(+PWH 4x35)
Disconnect one connector
Four screws
(+PWH 4x16)
(+PWH 4x16)
4
Chassis assembly
1
3
D. C. FAN
Fan bracket with D. C. fan
2
15
KDF-42WE655/50WE655
KDF-42WE655/50WE655
1-5.
POWER SUPPLY BLOCK REMOVAL (LAMP DRIVE UNIT)
1-6.
FAN, RF ANTENNA SWITCH, AND P BOARD REMOVAL
CAUTION: When removing the Power Supply Block be careful not to move the Optical Unit Block
U bracket
1
3
6
RF antenna switch
Fan Bracket
Three Screws (Washer Head)
(+P
4X16)
Four Screws (Washer Head)
(+P
4X35)
5
2
4
Seven Screws (+BVTP 3x12)
Disconnect four ground wires
Disconnect three connectors
and the ground wire
and the ground wire
7
8
P board
D. C. Fan
Two screws
(+BVTP 3x8)
(+BVTP 3x8)
Power supply block
2
4
1
5
3
Four screws (+BVTP 3x12)
Pull forward to remove
Unhook the antenna cable
Two screws (+PWH 4x16)
(to detach the cables from the
Optics Unit Block Assembly)
(to detach the cables from the
Optics Unit Block Assembly)
Disconnect two connectors
16
KDF-42WE655/50WE655
KDF-42WE655/50WE655
1-7.
U BOARD REMOVAL
1-8.
F BOARD AND G1 BOARD BOARD REMOVAL
U board
Gently pull back on tab to
release U board
release U board
1
6
7
G1 board
5
9
Gently pull back on the three clips
on the pin connection slots
while slowly lifting the G1 Board.
on the pin connection slots
while slowly lifting the G1 Board.
Disconnect two connectors
(CN1601 and CN1602)
and one ground wire (CN1607)
(CN1601 and CN1602)
and one ground wire (CN1607)
Remove one screw
(+BVTP 3X12 TYPE2 TT(B))
(+BVTP 3X12 TYPE2 TT(B))
Pull F Bracket out
and up to remove
and up to remove
Disconnect two connectors
(CN1908 and CN1909)
and two ground wires
(CN1902 and CN1903)
(CN1908 and CN1909)
and two ground wires
(CN1902 and CN1903)
Disconnect two connectors
(CN1603 & CN1604)
(CN1603 & CN1604)
8
Unfasten three Circuit Board Supports
Remove wires from purse locks
1
3
2
Disconnect the Power cord
from CN1900 connector.
from CN1900 connector.
17
KDF-42WE655/50WE655
KDF-42WE655/50WE655
1-9.
A BOARD AND KD BOARD REMOVAL
1-10. Q BOX ASSEMBLY, AND B BOARD REMOVAL
1
5
Remove cables from purse locks
Q Box Assembly
4
Gently pull back
on the two clips
on the Pin Connection slots
while slowly lifting the B board
on the two clips
on the Pin Connection slots
while slowly lifting the B board
2
Remove two screws
6
Remove two screws
(+BVTP 3X12 TYPE2 TT(B))
(+BVTP 3X12 TYPE2 TT(B))
3
Remove two connectors
(CN3501 and CN3502)
(CN3501 and CN3502)
B board
Disconnect six connectors
7
Unplug two coax cables
connected to the antenna switch
connected to the antenna switch
8
Remove four screws
9
1
2
Remove cables
from purse locks
from purse locks
3
Unfasten two Circuit Board Supports
Gently pull back
on the three clips
on the Pin Connection slots
while slowly lifting the A board
on the three clips
on the Pin Connection slots
while slowly lifting the A board
5
Gently pull back
on the two clips
on the Pin Connection slots
while slowly lifting the KD board
on the two clips
on the Pin Connection slots
while slowly lifting the KD board
A board
KD board
Disconnect three connectors
(CN8003, CN8004, and CN8008)
and coax cable from tuner
(CN8003, CN8004, and CN8008)
and coax cable from tuner
Disconnect three connectors
(CN4701, CN4705, and CN4702)
(CN4701, CN4705, and CN4702)
4
6
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