Panasonic PVD734S - DVD/VCR DECK, Руководство по обслуживанию

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seconds to set tracking to center.
8. Set the X Value adjustment driver (JG153) to the of Fig. 2-2-B .
Adjust X value so that the envelope waveform outputbecomes
maximum. Check if the relation between Audio and Envelope
waveform becomes (1) or (2) of
Fig. 2-3 .
Fig. 2-3
16.2.4. CONFIRM HI-FI AUDIO (Hi-Fi model only)
1. Connect CH-1 of the oscilloscope to TP101 and CH-2 to the Hi-Fi
Audio Out Jack .
2. Playback the VHS Alignment Tape (JG001P) .
(Refer to SERVICING FIXTURE AND TOOLS)
3. Press and hold the ATR button on the remote control more than 2
seconds to set tracking to center.
4. Press the Tracking Up button and count number of steps which
the audio output is changed from Hi-Fi (10KHz) to MONO (6KHz).
5. Press and hold the Tracking-Auto button on the remote control
more than 2 seconds to set tracking to center.
6. Press the Tracking Down button and count number of steps which
the audio output is changed from Hi-Fi (10KHz) to MONO (6KHz).
7. If the difference are more than 3 steps, set the X Value adjustment
driver (JG153) to of Fig. 2-2-B .Change the X Value and adjust it
so that the value becomes within 2 steps.
16.3. MECHANISM ADJUSTMENT PARTS LOCATION GUIDE
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