Panasonic PV-D4733S-K Service Manual page 164

DVD PLAY
Equipment:
Oscilloscope, DVD Test Disc
1. Playback 100% Flat Field on the DVD Test Disc in DVD PLAY Mode.
2. Connect the Oscilloscope to TP8406 on the DVD Main C.B.A. and GND
(TP8521 on the DVD Main C.B.A.).
3. Adjust R8044 on the DVD Main C.B.A. so that the level A becomes 2.0
V[P-P]±100 mV[P-P].
6.3.4. EVR (Electronic Variable Resister) ADJUSTMENT WITH THE REMOTE CONTROL
This unit has electronic technology using I2C Bus concept.The PG SHIFTER ADJUSTMENT is
adjusted by using " On Screen Display " and the remote control instead of adjusting mechanical
controls (VR).
6.3.5. PG SHIFTER ADJUSTMENT
Purpose:
Determine the Video Head Switching Point during Playback.
Symptom of Misadjustment:
May cause Head Switching Noise and/or Vertical Jitter.
Test Point :
TP3001 (Main C.B.A.),
TP6205 (Main C.B.A.)
Specification:
T = 6 H±0.5 H (0.38 ms±0.03 ms)
Mode :
SP Playback
Equipment :
Oscilloscope,
Fig. E2-1
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