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CCS Technical Documentation
CMT
Note! OMAP, UPP and UEM are unchangeable.
NO power
up
Connect service
battery to phone
and measure
current when
powering on
Current rises
over 100mA but
YES
drops down
NO
Current short
YES
NO
Current 0mA all
YES
the time
NO
Disassemble
phone
Check CMT
voltages:
C2232=2.8V,
C2202=2.8V,
C2204=1.8V,
C2205=1.5V
All Voltages ok
when power
NO
button pressed
YES
Check CMT Res e t
and clocks.
48
Current rises
Flash phone SW
over 100mA but
drops down
NO
YES
Disassemble
phone and check
visually possible
Any damaged
shortcircuits and
component found
damaged or over
and changed
heated
components
Check Battery
connector
C2232=2.8V to
RF, C2202=2.8V
to R2201 and
N4201,
C2204=1.8V to
D2800 and D3000,
C2205=1.5V to
D2800
COMPANY CONFIDENTIAL
Copyright © 2004 Nokia. All Rights Reserved.
Perform EM
calibration with
YES
Phoenix and
JBV-1
Remowe RF VBAT
NO
filter L7000
NO
Change damaged
All Voltages ok
component on
when power
voltage not in
button pressed
spec.
YES
RM-12
Current short
NO
Goto RF checking
YES
Change R2036,
Current short
YES
CSP component
on VBATT:
N2000, N2070,
N2100, N2200,
N4200, N4201,
N4202, N5200
Change UEM
NO
D2200
Issue 1 11/2004
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Troubleshooting
