Panasonic CT36HL43G - 36" COLOR TV, Service Manual

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- Video: 100 IRE flat field, 30% modulation.
- Audio: 300Hz, 30% modulation, stereo (left only) (70±5dB, 75
OPEN, P/S 10dB).
NOTE
After setting 30% modulation with P.L. SW and N.R. SW OFF, turn P.L. SW and N.R. SW
ON.
3. In service mode, adjust the MTS Low-Level separation adjustment
“SEPAL” data until the amplitude displayed on the scope
is minimum.
4. Apply the following signal from the RF signal generator:
- Video: 100 IRE flat field, 30% modulation
- Audio: 3KHz, 30% modulation, stereo (left only) (70 ±5dB, 75
OPEN, P/S 10dB).
NOTE
After setting 30% modulation with P.L. SW and N.R. SW OFF, turn P.L. SW and N.R. SW
ON.
5. Adjust the MTS High-level separation adjustment “SEPAH” until
the amplitude displayed on the scope is minimum.
6. Repeat above steps 2 through 5 until the amplitude is at minimum
for both signals.
16.11. Clock adjustment (CLOCK)
PREPARATION
Connect the frequency counter from TP96 / (A23 pin 21) to cold ground
PROCEDURE
1. Turn the receiver “OFF” with the A.C. power applied.
2. Measure TP96 (A23 pin 21) for the frequency of the waveform and
record the reading.
NOTE
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