Power Does Not Stay On Or The Mobile Terminal Is Jammed - Nokia RH-66 Troubleshooting Manual

2115i/2116/2116i (RH-66)
Baseband Description and Troubleshooting

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?
YES
Measure 32kHz
Sleep Clk from
testpoint. Is it OK?
YES
Measure 19.2MHz RF
Clk at testpoint. Is it
OK?
YES
Measure PURX and
SleepX. Are they
high (1.8V)?
YES
Mobile
Terminal is
Jammed
Page 2
Page 40
Check VBATT, VIO,
VCORE, VFlash1,
NO
VANA, VR3 capacitors.
Are they OK?
Check BSI/BTEMP
lines and VBATT lines.
Are they OK?
Measure the 32 kHz
NO
clock crystal. Is it OK?
Reflow or change UEM
Measure the 19.2MHz
Clk coming from the
NO
VCTCXO. Is it OK?
Change UPP
Change UEM
NO
©2005 Nokia Corporation
Repair capacitors
NO
YES
NO
YES
NO
YES
Check G7200, VR3,
NO
C7204, and R7204.
YES
Company Confidential
Reflow or change
UEM
Change B2200
R7200, C7200,
R7205, C7207,
Issue 1 03/2005