Service Precautions - Pioneer DEH-8300SD/XNEW5 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.
B 6. On CD Core Unit, actual cable colors and silk print are different.
C
7. When a CD-DA (regular music CD) is played in the CD test mode, its sound quality will be temporarily
deteriorated. The CD will then repeat normal, deteriorated, normal... playback.
This is due to the difference in the playback modes between the normal operation mode and the CD test
mode, and the interval of generating deteriorated mode and the time taken to return to the normal mode
depend on the error of each clock.
The time taken to turn to the deteriorated mode is at a minimum around 20 seconds while the time to return
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to the normal mode is maximum 40 seconds approximately.
Make sure to check the sound quality in the normal operation mode.
8. How to Handle Infrared Detecting unit for Remote Control of Grille
The infrared detecting unit for remote control of keyboard unit is not fixed with cushion, etc.
When external force is applied on the infrared detecting 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 detecting 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 detecting unit for remote control (GP1UXC14RK).
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DEH-8300SD/XNEW5
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Green Red
White Black
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