Nokia 6220 Service Manual

RH-20

Company confidential 

CCS Technical Documentation

Page 48

 Nokia Corporation.

Issue 1  10/2003

Start

Is accessory detected 

when connected to 

system connector?

Check system 

connector X101 

(solder ings, contact 

plates). Is it OK?

Measure VOUT 

voltage (pin4). 

Is it ~2.8V?

Check VOUT-line (N100, L107, R103, C101, 

C102, C112).

 If not OK, change defect part and retest.

End

No

No

Repair solderings or check contact 

plates if dirty. Retest.

No

Retest

Measure ACI-line 

(pin3).

 Is it ~0.83...1.13V?

Check ACI- line (L106,R103,R102,R109,C103).

If not OK, change defect part and retest. 

No

Yes

Yes

Yes

Measure VOUT 

voltage (pin4). 

Is it ~0V?

Check that regulator N100 enable-pin is 

LOW-state.

 If not OK, check ACI-line again

No

Retest

Measure ACI-line 

(pin3).

 Is it ~0V?

Check ACI- line (L106,R103,R102,R109,C103).

If not OK, change defect part and retest. 

No

Yes

Yes

Yes