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Take single trig measurement on the rising edge of the DAT signal.
User interface troubleshooting
Display module troubleshooting
General instructions for display troubleshooting
Context
The RM-272/273 has three display modes:
Normal mode : The display is in normal mode when the phone is in active use.
•
Partial idle mode : The display is in partial idle mode when the power saver is on.
•
Sleep mode : The display has a sleep mode to conserve power. In this mode the display looks blank, but
•
the phone is switched on. To verify if the phone display is sleeping, press a key.
The operating modes of the display can be controlled with the phone settings menu.
Display blank
Image on the display not correct
Backlight dim or not working at all
Page 3 –20
Figure 11 SD card initialization from pin J3206
Table 6 Display module troubleshooting cases
COMPANY CONFIDENTIAL
Copyright © 2007 Nokia. All rights reserved.
BB Troubleshooting and Manual Tuning Guide
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.
Image on the display can be corrupted or a part of
the image can be missing. If a part of the image is
missing, change the display module. If the image is
otherwise corrupted, follow the appropriate
troubleshooting diagram.
Backlight LED components are inside the display
module. Backlight failure can also be in the
connector or in the backlight power source in the
main engine of the phone.
This means that in case the display is working
(image OK), the backlight is faulty.
RM-272; RM-273
Issue 1
- Quick Links:
- Display and Keypad Features
- Hardware Features
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