Noblex 1 113 261 05, Руководство по обслуживанию

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Service Adjustments with Replacing Memory IC(IC802)
-15-
6. Adjust voltage to become minimum reading by pressing
the -) button on the remote control or TV set.
7. To exit from the service mode, press the MENU button.
1. Connect a signal generator to TP-301(- side of C3407)
and the ground.
Signal output=15.734KHz, 100mVrms.
2. Connect a DC Volt-Meter to TP-317( + side of C3437) and
the ground.
3. Ground TP-20(pin-45 of IC201) with the jumper lead.
4. Switch the TV set on.
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. Select “FILTER” by pressing the CHANNEL UP/DOWN
button on the remote control or TV set.
MTS FILTER ADJUSTMENT
IC3401
MTS
TP-301
TP-317
IC201
IF /VIDEO/CHROMA/DEF.
TP-20
pin-45
(Service Mode)
INPUT LEVEL 25
STEREO VCO
23
FILTER 32
LOW SEPARATION 29
HI SEPARATION 26
SAP VCO 27
ADJUST: - /+
CHOOSE:
▲▼
EXIT : MENU
MAIN BOARD
1. Connect an oscilloscope:
Probe-A to TP-317(+ side of C3437) and the ground.
Probe-B to TP-318 (+ side of C3438) and the ground.
2. Switch the TV set on, and receive the multi sound program.
3. Press and hold the MENU button on the TV set, and press
“3” button on the remote control transmitter to enter to the
service mode.
4. Select “LOW SEPARATION” by pressing the CHANNEL
UP/DOWN button on the remote control or TV set.
STEREO SEPARATION ADJUSTMENT
(Service Mode)
INPUT LEVEL 25
STEREO VCO
23
FILTER 32
LOW SEPARATION 29
HI SEPARATION 26
SAP VCO 27
ADJUST: - /+
CHOOSE:
▲▼
EXIT : MENU
IC3401
MTS
TP-317
MAIN BOARD
TP-318