Disassembly; Rear Board Removal; Chassis Assy Removal; Service Position - Sony KP-HR43K90J Service Manual

2-1. REAR BOARD REMOVAL

2-2. CHASSIS ASSY REMOVAL

2 Chassis assy
SECTION 2

DISASSEMBLY

2 Rear board
1 Nine screws,
tapping, hexagon head
1 Three screws,
tapping, hexagon head
KP-HR43K90J/HR53K90J/HR53N90J

2-3. SERVICE POSITION

1 Disconnect CN17, 18, 19
on A board.
From V boards CN9001.
(The extension cable is not
supplied because of the
A board
countermeasure for radiation.)
CN17, 18, 19
D board
Chassis assembly

2-4. H2 BOARD REMOVAL

2 Screw,
tapping,
hexagon
head
1 Cap,
2 Screw,
speaker
tapping,
grille
hexagon
head
1 Cap,
Except HR43K90J
– 8 –
RM-Y909K RM-Y909K
2 Covers
Cut them off with a plier or the like
from chassis assembly in case of
checking printed circuit boards.
After checking, turn over the covers
and secure them with screws.
Screws
(+BVTP3x12)
3 Six screws
(+BVTP4x12(HR43K90J))
(+BVTP4x16
(Except HR43K90J))
4 H2 board
5 Button, multi
speaker
grille
RM-Y908