User Guide

2115i/2116/2116i (RH-66)
Baseband Description and Troubleshooting
Page 40 ©2005 Nokia Corporation Company Confidential Issue 1 03/2005
Power Does Not Stay on or the Mobile Terminal is Jammed
Mobile
Terminal is
Jammed
Measure VIO,
VCORE, VFlash1,
VANA, and VR3
voltages. Are they
OK?
Measure 32kHz
Sleep Clk from
testpoint. Is it OK?
Measure 19.2MHz RF
Clk at testpoint. Is it
OK?
Measure PURX and
SleepX. Are they
high (1.8V)?
Mobile
Terminal is
Jammed
Page 2
Check VBATT, VIO,
VCORE, VFlash1,
VANA, VR3 capacitors.
Are they OK?
Measure the 32 kHz
clock crystal. Is it OK?
Measure the 19.2MHz
Clk coming from the
VCTCXO. Is it OK?
Check BSI/BTEMP
lines and VBATT lines.
Are they OK?
Repair capacitors
Change B2200
Reflow or change UEM
Check G7200, VR3,
R7200, C7200,
R7205, C7207,
C7204, and R7204.
Change UPP
Change UEM
NO
YES
NO
YES
NO NO
YES
YES
NO NO
YES
YES
NO
YES
YES
Reflow or change
UEM
NO