Keymat Leds Troubleshooting; Display Module Troubleshooting; General Instructions For Display Troubleshooting - Nokia RM-632 Service Manual

RM-632; RM-634; RM-699
BB Troubleshooting and Manual Tuning Guide

Keymat LEDs troubleshooting

Troubleshooting flow

Display module troubleshooting

General instructions for display troubleshooting

Context
• The display is in a normal mode when the phone is in active use.
• The operating modes of the display can be controlled with the help of
Display blank
Issue 3
Table 6 Display module troubleshooting cases
COMPANY CONFIDENTIAL
Copyright © 2010 Nokia. All rights reserved.
Phoenix .
There is no image on the display. The display looks
the same when the phone is on as it does when the
phone is off. The backlight can be on in some cases.
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