AVH-X7700BT/XNUC
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1. SERVICE PRECAUTIONS
1.1 SERVICE PRECAUTIONS
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
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.
10. area and a heat sink becomes hot areas. Be careful not to burn yourself.
Wiring Number Part Number
Reason
Mother Unit
Mother Unit
Mother Unit
Mother Unit
Mother Unit
Mother Unit
IC351
KBD9876EFJ
Bottom pad
IC601
MN1AA9010Z
Bottom pad, Narrow pitch(0.4mm)
IC891
337S3959
Bottom pad
IC1201
PM9014A
Bottom pad
Bottom pad
Bottom pad
Bottom pad
Bottom pad
Bottom pad
IC2201
TEF6686HN
IC3101
STCC2540IQ
Monitor Unit
Monitor Unit
Monitor Unit
IC5001
AK4187VN
IC5101
OZ527ILN
IC5201
R1290K103A
Содержание AVH-X7700BT/XNEW5
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