Nokia 5140 Manuales De Servicio

NPL-4/5

Company confidential 

Troubleshooting Instructions

Nokia Customer Care

Page 84

Copyright © 2004 Nokia Corporation. All rights reserved.

Issue 1 05/04

Flashlight 

faults

Are flashlight

(LED) turned on ?

Measure 

voltage over C304.

Is it typ. 9.1V ?

Measure

voltage  V317/3 .Is it 

typ. 5.0V ?

Set phone to LOCAL mode. Set 

VBATT to 4.2V. Start Display 

test with Phoenix. 

Set "Flashlight" ON

Check lines of 

CALLED1 and 

CALLED2. If lines are 

OK change UEMEk

C302,C303,L300,V30
0, R310, R302,R300, 

C304.

If OK change N300

Check  V320, V317, 

R315, R316, R318

Check  CALLED1 (N300/8 

and CALLED2 (V320/IN).Are 

they HIGH ?

No

Change V318 and/or 

R318

Yes

No

Yes

No

Display faults

2

Yes

Yes