Aci Accessory Problem - Nokia NHM-1 Series Troubleshooting Instructions

CCS Technical Documentation

ACI Accessory problem

Start
Is accessory detected
No
when connected to
system connector?
Yes
End
Issue 1 11/03
Check system
connector X102
No
(solderings, contact
plates). Is it OK?
Yes
Measure ACI-line
(pin3). No
Is it ~0.83...1.13V?
Yes
Measure VOUT
No
voltage (pin4).
Is it ~2.8V?
Yes
Retest
Measure ACI-line
(pin3). No
Is it ~0V?
Yes
Measure VOUT
No
voltage (pin4).
Is it ~0V?
Yes
Retest
Nokia Corporation.
Troubleshooting instructions
Repair solderings or check contact
plates if dirty, clean. Retest.
ACI-Accessory
Check ACI- line (R103,R207, C118).
If not OK, change defect part and retest.
Check VOUT-line (R103,C313,N300)
If not OK, change defect part and retest.
Non-ACI Accessory
Check ACI- line (R103, R207,C118).
If not OK, change defect part and retest.
Check VOUT line (R103, C313,N300)
If not OK, check ACI-line again
NHM-1
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