Panasonic SL-CT700GD, Service Manual

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<Example>
Follow the below steps when E-1 is displayed.
(Cause: Focus balance (FBC) is set beyond the limit.)
- Check if
1. the waveform or voltage of the focus servo circuit is correct, and
2. the optical pick-up returns to the normal state by exchanging the
traverse deck.
Follow the below steps when E-4 is displayed.
(Cause: Focus gain (FGC) is set beyond the limit.)
- Check if
1. the waveform or voltage of the focus servo circuit is correct,
2. the focus coil of the optical pick-up is correct (around 8 ohms),
and
3. the optical pick-up returns to the normal state by exchanging the
traverse deck.
Follow the below steps when E-F is displayed.
(Cause: All adjustments (TGC, FGC, TBC, FBC) are set beyond the limit.)
- Check if
1. the optical pick-up returns to the normal state by exchanging the
traverse deck, and
2. the waveform or voltage of the servo ICs are correct.
Note:
It is not always necessary to exchange the traverse deck when an error message is displayed.
Be sure to check if the circuit is defective or not before exchanging the traverse deck.
Note:
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