Service Precautions - Pioneer DEH-2350UB/XNES Service Manual

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1. SERVICE PRECAUTIONS

1.1 SERVICE PRECAUTIONS
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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.
2. 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.
3. To protect the pickup unit from electrostatic discharge during servicing, take an appropriate treatment
(shorting-solder) by referring to "the DISASSEMBLY".
4. After replacing the pickup unit, be sure to check the grating.
5. Be careful in handling ICs. Some ICs such as MOS type are so fragile that they can be damaged by
electrostatic induction.
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6. area and a heat sink becomes hot areas. Be careful not to burn yourself.
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7. Software update
The software of this product is stored in IC671.
Please replace IC671 when making the version upgrade of software.
8. How to Handle Infrared Deteching unit for Remote Control of Grille
The infrared deteching unit for remote control of keyboard unit is not fixed with cushion, etc.
When external force is applied on the infrared deteching unit for remote control, the light receiving sensitivity might be
deteriorated since the lead bents and attaching angle of the light receiving part may be varied.
Please do not apply external force onto the infrared deteching unit for remote control. If any external force is applied by
mistake, please confirm whether lead bending may exist or not.
If the lead is bent, please correct the angle between the lead and the light receiving part to be 90 degrees or replace
the infrared deteching unit for remote control (GP1UXC14RK).
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