Ui Module Troubleshooting; Keymat Backlight - Nokia RH-47 Series Description

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UI Module Troubleshooting

This section describes the troubleshooting of the UI module
If the problem is in the display or in the keymat PWB, the entire UI module must be
replaced. However, the earpiece alone may be replaced (see audio troubleshooting).

Keymat backlight

If the keymat backlight is not functioning and the backlight driver voltage is generated
correctly on the 1CK module, then the problem is either in the connector or in the UI
Issue 1 05/04
Company Confidential
6 - Baseband Description and Troubleshooting
Copyright © 2004 Nokia Corporation
Company Confidential
RH-47
Page 57