Phone Is Jammed 1 - Nokia RH-37 Series Baseband Troubleshooting Instructions

RH-37
6(a) - BB Troubleshooting Instructions

Phone is jammed 1

Phone
is
jammed
Measure
VIO, VCORE,
VFLASH1,
VANA, VR3 voltages.
Are they
OK?
Yes
Measure
32.8kHz
Sleep Clk
from testpoint J2802.
Is it OK?
Yes
See Waveform 3
Goto Part
2
Page 12
No
Check L2200,
BSI/BTEMP lines
and VBATT lines
Check
VBATT1-6, VIO,
VCORE, VFLASH1,
VANA,
VR3 lines.
Are they ok?
Check BSI/BTEMP
lines. If OK UEM
Yes
regulators are not
working. Change
No
Measure
32.8 kHz Sleep Clk
from C2241.
Is it OK?
Yes
Change UEM
Nokia Corporation
C2239,
No
Retest
UEM.
See Waveform 4
No
Check B2200,
C2210, C2241.
Retest
Nokia Customer Care
Waveform 3
Waveform 4
Issue 1 07/04