Service Precautions; A 1.1 Service Precautions - Pioneer AVH-X1700S/XNUC Service Manual

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1. SERVICE PRECAUTIONS

1.1 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.
2. Be careful in handling ICs. Some ICs such as MOS type are so fragile that they can be damaged by electrostatic
induction.
3. Please be sure to conduct line process to original status if you make assembling after repair.
4. Please be careful of not to imply static charge onto integrated circuits, etc, when you conduct repair work.
Especially, please use soldering iron with its tip grounded.
Also, please use a pair of tweezers with static charge protection capability if there is the possibility of contacting to
device terminals, and avoid the use of metal-made tweezers.
5. Before disassembling the unit, be sure to turn off the power. Unplugging and plugging the connectors during power-on
B
mode may damage the ICs inside the unit.
6. To protect the pickup unit from electrostatic discharge during servicing, take an appropriate treatment (shorting-solder)
by referring to "the DISASSEMBLY".
7. Please keep the distance of more than 13 cm from focus lens for safety when you check pickup and make adjustment,
and do not look straight at Laser Beam for more than 10 seconds.
8. Please power adjustment when you replaced mechanical area of DVD Mecha Module or DVD core unit.
9. On this mechanism, Pickup and Spindle Motor can not be replaced at the service site, because a special facility is
required for the adjustment after replacing them.
So, if Pickup or Spindle Motor is defective, replace the Mechanism Unit.
10. The part listed below is difficult to replace as a discrete component part.
When the part listed in the table is defective, replace whole Assy.
C
Unit
Mother PCB
Service Unit(Monitor)
D
11. EJECT LOCK MODE for DVD mechanism
< Procedure >
To enter EJECT LOCK MODE : Reset start while pressing [VOL+] key and [REVERSE] key.
To exit EJECT LOCK MODE : Follow the same steps to enter this mode.
E
F
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1
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No. Part No.
IC351 KBD9876EFJ
IC601 MN1AA9010Z
IC891 337S3959
IC1201 PM9014A
IC2201 TEF6686HN
IC3191 STCC2540IQ
IC5001 AK4187VN
IC5101 OZ527ILN
IC5201 R1290K103A
AVH-X1700S/XNUC
2
3
Reason
Heat pad
Heat pad, Terminal pitch is narrow
(0.4 mm)
Heat pad
Heat pad
Heat pad
Heat pad
Heat pad
Heat pad
Heat pad
3
4
4