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1
SAFETY INFORMATION
A
This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer.
Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely
repair
complex products such as those covered by this manual.
Improperly performed repairs can adversely affect the safety and reliability of the product and may void the
warranty.
If you are not qualified to perform the repair of this product properly and safely, you should not risk
trying to do so
and refer the repair to a qualified service technician.
B
- CD 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
C
during servicing, take an appropriate treatment
(shorting-solder) by referring to "the DISASSEMBLY"
on page 47.
3. After replacing the pickup unit, be sure to check the
grating. (See p.44.)
4. In this product, because the memory capacity of the
microcomputer is insufficient, the test mode is not
installed. However grating of the pickup unit can be
confirmed.
D
E
F
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DEH-1650/XU/ES
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