-15-
SOUND LEVEL ADJUSTMENT
1.
Receive the channel with audio 1KHz 100% modulation
signal.
2.
Connect a DC Volt-Meter to TP-317(JD64) and the ground.
3.
Set the Surround OFF. Press and hold the
MENU
button
on the TV set, and press “
3
” button on the remote control
transmitter to enter the service mode.
5.
Adjust voltage to become DC 400mVrms±20mVrms at
TP-317(JD64)
by pressing the
VOLUME
(
+/-
) button on
the remote control or TV set.
6
. To exit from the service mode, press the
MENU
button.
STEREO SEPARATION ADJUSTMENT
1.
Connect an oscilloscope:
Probe-A to TP-317(JD64).
Probe-B to TP-318(JE53).
2.
Turn on the TV set, and receive the multi sound programme.
Set the Surround OFF.
3.
Press and hold the
MENU
button on the TV set, and press
“
3
” button on the remote control transmitter to enter the
service mode.
4.
Select “
LOW SEPARATION
” by pressing the CHANNEL
UP/DOWN button on the remote control or TV set.
5.
Adjust the level of 300Hz at TP-317 (JD64) to become
minimum level by pressing the
VOLUME
(
+
/
-
) button
on the remote control or TV set.
Minimum leakage
300Hz
Service Adjustments
TP317
MAIN BOARD
MAIN BOARD
JD64
JE53
TP-317(R)
