Service Precautions; A 1.1 Service Precautions - Pioneer AVH-X7700BT/XNUC 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. Be careful in handling ICs. Some ICs such as MOS type are so fragile that they can be damaged by electrostatic
induction.
3. 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.
4. To protect the pickup unit from electrostatic discharge during servicing, take an appropriate treatment
(shorting-solder) by referring to "the DISASSEMBLY" .
5. After replacing the pickup unit, be sure to skew adjustment.
6. When a flash ROM needs to be replaced by service, do not replace an IC but a core unit (as no encryption key is
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written in a flash alone).
7. During disassembly, be sure to turn the power off since an internal IC might be destroyed when a connector
is plugged or unplugged.
8. EJECT LOCK MODE for DVD mechanism
How to enter : Turn on ACC while pressing [HOME] and [EJECT] keys together.
How to exit : Same procedure to enter this mode.
9. 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.
Mother Unit
Mother Unit
C
Mother Unit
Mother Unit
Mother Unit
Mother Unit
Monitor Unit
Monitor Unit
Monitor Unit
10. area and a heat sink becomes hot areas. Be careful not to burn yourself.
D
E
F
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Wiring Number Part Number
IC351 KBD9876EFJ
IC601 MN1AA9010Z
IC891 337S3959
IC1201 PM9014A
IC2201
TEF6686HN
IC3101
STCC2540IQ
IC5001
AK4187VN
IC5101 OZ527ILN
IC5201 R1290K103A
AVH-X7700BT/XNUC
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3
Reason
Bottom pad
Bottom pad, Narrow pitch(0.4mm)
Bottom pad
Bottom pad
Bottom pad
Bottom pad
Bottom pad
Bottom pad
Bottom pad
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4
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