Phone Is Dead 2 - Nokia RH-37 Series Baseband Troubleshooting Instructions

Nokia Customer Care

Phone is dead 2

Dead2
Is Sleep CLK on
J2802 = 32.8kHz,
1.8Vpp?
Yes
See Waveform 1
Is
PURX=1.8VDC
on J2800 1sec. after
power key
is pressed?
Yes
Is VR3=2.78VDC
seen at C2234?
Yes
Is there a
26MHz clock
(typ) 850mVpp
at R2902?
Yes
Phone is
Jammed
Issue 1 07/04
Check: B2200,
C2241, C2210,
No
PWB then
replace D2200
Replace
No
D2200, PWB
Check C2234
No
then replace
D2200, PWB
Check R2902,
No
C2902
See Waveform 2
Nokia Corporation
6(a) - BB Troubleshooting Instructions
Waveform 1
Waveform 2
Retest
RH-37
Page 9