Sony KF-42WE620 / KF-50WE620 Service Manual ▷ View online
10
KF-42WE620/50WE620
KF-42WE620/50WE620
1-1. REAR COVER REMOVAL
SECTION 1: DISASSEMBLY
1-2. CENTER PILLAR REMOVAL
Rear cover
Eleven screws
(+BVTP 4x16)
(+BVTP 4x16)
1
2
Center Pillar
4
2
1
3
5 Gently lift the Center Pillar up then out
from the bottom bracket.
Disconnect
three ground wires
three ground wires
Two screws
(+BVTP 4x16)
(+BVTP 4x16)
Two small screws
(+PSW 3x8)
(+PSW 3x8)
Three screws from the top of the center pillar
(+BVTP 4x16)
(+BVTP 4x16)
11
KF-42WE620/50WE620
KF-42WE620/50WE620
Pull back on claw, then gently pull out chassis assembly
Chassis assembly
1
1-3. SERVICE POSITION
1-4. CHASSIS ASSEMBLY AND D.C. FAN REMOVAL
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
12
KF-42WE620/50WE620
KF-42WE620/50WE620
1-5. POWER SUPPLY BLOCK REMOVAL (LAMP DRIVE UNIT)
1-6. UD BOARD AND RF ANTENNA SWITCH REMOVAL
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
CAUTION: When removing the Power Supply Block be careful not to move the Optical Unit Block
4
RF antenna switch
2
5
1
3
UD board
1
4
4
Two screws (HEX)
Disconnect two Pin plugs
and one connector
and one connector
One screw
(+BVTP 3x8)
(+BVTP 3x8)
One screw
(+PSW 3x8)
(+PSW 3x8)
Disconnect three connectors
and the ground wire
and the ground wire
13
KF-42WE620/50WE620
KF-42WE620/50WE620
1-7. U BOARD REMOVAL
1-8. F AND G1 BOARD REMOVAL
U bracket
3
2
1
U board
4
Gently pull back on the two clips
on the pin connection slot
while slowly lifting the U Board
on the pin connection slot
while slowly lifting the U Board
Six Screws (+BVTP 3x12)
Disconnect three connectors
Disconnect four ground wires
4
6
8
7
2
G1 board
F board
3
1
Claw
5
9
Gently pull back on the two clips
on the pin connection slot
while slowly lifting the G1 Board.
on the pin connection slot
while slowly lifting the G1 Board.
Disconnect one connector
(CN1609)
(CN1609)
Disconnect one ground wire
Disconnect two connectors (CN1602 & CN1605)
and one ground wire (CN1611)
and one ground wire (CN1611)
Remove wires from purse locks
Note:
Place the F Board on its side
to disconnect three ground wires.
Place the F Board on its side
to disconnect three ground wires.
Ttwo screws (+BVTP 3x12)
Disconnect the Power cord
from CN1907 connector.
from CN1907 connector.
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