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1. SERVICE PRECAUTIONS
A
1. You should conform to the regulations governing the product (safety, radio and noise, and other regulations),
and should keep the safety during servicing by following the safety instructions described in this manual.
DVD MECHANISM MODULE section precaution
1. Before disassembling the unit, be sure to turn off the power. Unplugging and plugging the connectors
during power-on mode may damage the ICs inside the unit.
2. To protect the pickup unit from electrostatic discharge during servicing, take an appropriate treatment
(shorting-solder) by referring to "the DISASSEMBLY" .
3. After replacing the pickup unit, be sure to skew adjustment.
4. During disassembly, be sure to turn the power off since an internal IC might be destroyed when a
connector is plugged or unplugged.
B
H/U independent operation
C
D
Operation becomes possible even if there is no H/A, when it does in this way.
Since TUN is not connected, TUN sauce does not operate.
Please operate sauce by DVD, AUX, etc.
E
F
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AVH-P7900DVD/RE
2
3
Short here
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