NSW-5
Disassembly and Troubleshooting Instructions
PAMS Technical Documentation
Page 41
Issue 1 10/00
Nokia Mobile Phones Ltd.
TDMA800 TX
The transmitter chain is exactly same as in AMPS–mode, but the power
amplifier is biased to more linear mode, so it is important, that AMPS
have no faults.
Is AMPS mode OK
?
Start AMPS
troubleshooting
Check Vbias
PIN16
N903
V: > 2.8 V
Check
CCONT
VR7_bias
(BaseBand)
Start power level
tuning. Does it work?
Change
N750 and/or
Cobba
N
Y
N
Y
N
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