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AV-21PM
FEATURES
New chassis design enables use of an interactive on-
screen control.
Wide range voltage for AC power input.
With AUDIO / VIDEO INPUT & OUTPUT terminals.
MUTING button can reduce the audio level to zero in-
stantly.
Functional remote control to operate TV set (for channel
select, volume control, power ON/OFF, etc.) from a dis-
tance.
I
2
C bus control utilizes single chip ICs for IF, V/C (Video/
Chroma) and VSM (Video Status Memory).
SPECIFIC SERVICE INSTRUCTIONS
DISASSEMBLY PROCEDURE
REMOVING THE REAR COVER
1. Unplug the AC power cord.
2. Remove the 7 screws marked "A" and 1 screw marked "B".
(See Fig. 2 on the next page.)
3. Withdraw the rear cover backward.
REMOVING THE PB BASE
After removing the rear cover.
1. Slightly raise both sides of the PB Base by hand and remove
the 2 claws under both sides of the PB Base from the front
cabinet. (See Fig. 2.)
2. Withdraw the PB Base backward.
(If necessary, take off the wire clamp, connectors etc.)
REMOVING THE CONTROL BASE
After removing the Rear Cover and the PB Base.
1. While pushing down the claws marked "C", remove the Control
Base forward (in the arrow direction marked "D"). (See Fig. 1.)
(If necessary, take off the wire clamp, connectors, etc.)
REMOVING THE SPEAKER
After removing the rear cover.
1. Remove the Speaker block by removing the 2 screws marked
"E" . (See Fig. 2.)
2. Remove the Speaker by removing the 4 screws marked "F".
(See Fig. 2.)
3. Follow the same steps for removing the other hand speaker.
CHECKING THE MAIN PW BOARD
To check the back side of the Main PW Board, follow the next steps.
1. Pull out the PB Base. (Refer to "REMOVING THE PB BASE".)
2. Erect the PB Base vertically so that you can easily check the
back side of the Main PW Board.
CAUTION:
When erecting the PB Base, be careful so that there will be no
contacting with other PW Board.
Before turning on power, make sure that the CRT earth wire
and other connectors are properly connected.
When repairing, connect the Deg. coil to the DEG. connector
on the Main PW Board.
4
By means of AUTO PROGRAM, the TV stations can be
selected automatically and the TV channels can also be
rearranged automatically.
Built-in ECO MODE (ECONOMY, ECOLOGY)
In accordance with the brightness in a room, the bright-
ness and/or contrast of the picture can be adjusted auto-
matically to make the optimum picture which is easy on
the eye.
Built-in ON TIMER & RETURN +.
WIRE CLAMPING AND CABLE TYING
1. Be sure to clamp the wire.
2. Never remove the cable tie used for tying the wires together.
Should it be inadvertently removed, be sure to tie the wires with
a new cable tie.
[FRONT SIDE]
CONTROL BASE
PB BASE
No. 56055
C
D
Fig. 1
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