Keypad Faults; Power Key - Nokia 6255 Description And Troubleshooting
Baseband
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Also See for 6255:
- User manual (110 pages) ,
- Rf description and troubleshooting (78 pages) ,
- Disassembly manual (18 pages)
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Nokia Customer Care
Keypad Faults
Power Key
Keypad
faults
Is the power key
working?
YES
Keypad
faults,
page 2
Issue 2 05/2005
Measure voltage
at pin 1 and 3
NO
(S300). Is it
high?
YES
Measure voltage
at pin 1 and 3
(S300) when the
YES
power key is
pressed. Is it
high?
NO
Mobile terminal
is Jammed
©2005 Nokia Corporation
6255/6255i6256/6256i (RM-19)
Baseband Description and Troubleshooting
Check S300,
C314, and R304.
NO
If OK, change
UEM
Check S300. Is it
YES
OK?
NO
Change S300
Company Confidential
Mobile terminal
dead
Page 63
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