Nokia 3510 - CHAPTER 7 User Interface Faults

CONFIDENTIAL
15 (18)
Customer Care Europe, Middel East & Africa NHM-8 / RH-9 Repairhints
SCCE Training Group Version 2.0 Approved
 2003 Nokia Mobile Phones
Date 10-03-2003
© NMP 2003
Checked by: SCCE Approved by: Training Group
CHAPTER 7: User Interface Faults
Display faulty
- Change display module I004 to check if it is responsible for the fault.
- If the fault persists check VIO 1.8VDC at C303, VFLASH1 2.8VDC at C304 and
10.65VDC at pin 8 from display modul, before measuring carefully remove display metal frame.
After removing metal frame measure at the point shown in the right picture below, marked by the red arrow.
- If the display still does not work but the voltages are measurable, probably UPP (D400) is faulty.
Swap the phone as UPP is not changeable.
Measure 10.65 VDC at the red arrow