Panasonic PV-D4742 Service Manual page 9

Note:
1. After replacing the Cylinder Unit, press COUNTER RESET button
on remote in this mode. Only Total elapsed "Cylinder rotation"
time (in hours) will be cleared to 0.
2. To release from Usage Screen Mode, press any operation button
on VCR or insert a cassette tape in this mode. The VCR will return
to normal operation mode.
4.1.3. EEPROM IC (IC6005), MAIN C.B.A. REPLACEMENT NOTE
After replacing EEPROM IC (IC6005) or Main C.B.A., be sure to perform the "PG SHIFTER
ADJUSTMENT" in ELECTRICAL ADJUSTMENT procedures.
4.1.4. GROUNDING FOR ELECTROSTATIC BREAKDOWN
Prevention
1. Human body grounding
Use the antistatic wrist strap to discharge the static electricity
from your body.
2. Work table grounding
Put a conductive material (sheet) or steel sheet on the area where
the optical pickup is placed and ground the sheet.
Caution:
The static electricity of your clothes will not be grounded through
the wrist strap. So take care not to let your clothes touch the optical
pickup.
4.1.5. DVD DECODER C.B.A. REPLACEMENT NOTE
After replacing the DVD Decoder C.B.A. or EEPROM IC (IC8001), confirm the Firmware version
Fig. 3
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