No.51945
AV32H20EUS
AV28H20EUS
AV28H20EUB
6
SPECIFIC SERVICE INSTRUCTIONS
DISASSEMBLY PROCEDURE
REMOVING THE REAR COVER
1. Unplug the power c ord.
2. Remove the 12 (28” models), 13 (32” model) screws marked
A
as s hown in the Fig. 1.
3. Withdraw the rear cover toward you.
REMOVING THE CHASSIS
"
After removing the rear cover.
1. Slightly raise the both sides of the c hassis by hand and remove
the two claws under the both sides of the chassis from the front
cabinet.
2. Withdraw the chass is backward.
(If necess ary, take off the wire clamp, connectors etc.)
REMOVING THE SPEAKER
"
After removing the rear cover.
1. Remove the 2 screws marked
B
, and remove the speaker holder
as s hown in Fig. 1.
NOTE
: When removing the screws marked
B
of the speaker
remove the lower side screw first, and then remove the
upper one.
2. Remove the 2 screws
C
attac hing the speak er.
3. Follow the s ame steps when removing the other hand speaker.
REMOVING THE AV TERMINAL BOARD
"
After removing the rear cover.
1. Remove the 3 screws marked
D
as shown in the Fig. 1.
2. Remove the 2 claws mark ed
E
under the CHASSIS as shown in
Fig. 2.
3. Remove the AV TERMINAL BOARD slightly in the direction of
arrow
F
as shown in Fig. 2.
REMOVING THE POWER & DEF PWB
"
After removing the rear cover.
"
After removing the rear CHASSIS.
1. Remove the 3 screws marked
G
.
2. Remove the POWER & DEF PWB.
CHECKING THE PW BOARD
To check the back side of the PW Board.
1) Pull out the chassis . (Refer to REMOVING THE CHASSIS).
2) Erect the c hassis vertically so that you c an easily check the
back side of the PW Board.
[CAUTION]
"
When erec ting the chassis, be careful s o that there will be no
contacting with other PW Board.
"
Before turning on power, make sure that the wire connector is
properly connec ted.
"
When conducting a check with power supplied, be sure to c onfirm
that the CRT EARTH WIRE (BRAIDED ASS’Y) is connected to
the CRT SOCKET PW board.
WIRE CLAMPING AND CABLE TYING
1. Be sure to clamp the wire.
2. Never remove the c able tie used for tying the wires together.
Should it be inadvertently removed, be sure to tie the wires with
a new c able tie.
AV SW PWB
E
Fig. 2
AV TERMINAL
BOARD
E
