Nokia RH-47 Series Rf Description And Troubleshooting page 52

RH-47
7 - RF Description and Troubleshooting
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Page 52
Company Confidential
GSM850 BURST -110
t=1 C=H TxL=5
GSM850 BURST -70
t=2 C=H TxL=5
GSM850 BURST -1
t=4 C=H TxL=5
GSM850 BURST -1
t=9 C=H TxL=5
GSM850 BURST -70
t=11 C=H TxL=5
GSM850 BURST -90
t=12 C=H TxL=5
GSM850 FREQ -90
ERR PEAK C=H
TxL=5
GSM850 PHASE 0
ERR RMS C=H
TxL=5
GSM850 PHASE 0
ERR PEAK C=H
TxL=5
GSM850 Ramp- -90
ing Spectra
+400Khz C=H
TxL=5
GSM850 Ramp- -90
ing Spectra -
400Khz C=H
TxL=5
GSM850 Mod -100
Spectra +400Khz
C=H TxL=5
GSM850 Mod -100
Spectra -400Khz
C=H TxL=5
GSM850 BER - 0
102 C=H TxL=5
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Company Confidential
Nokia Customer Care
-30 dB X
-6 dB X
1 dB X
1 dB X
-6 dB X
-30 dB X
90 Hz X
5 deg X
20 deg X
-19 dBm X
-19 dBm X
-60 dBc X
-60 dBc X
2 % X
Burst template
failure: Check
Detector Diode
V801 and Loop
components:
C804, R802,
C805, R801,
C803.
also consider
components near
Mjölner:
R708,R707, R706,
C706 or C831.
Check shielding
and antenna con-
nection
Check the follow-
ing capacitors for
correct soldering:
C610, C740, C741,
C626, C710, C711,
C712
Check C715 and
C716 for correct
soldering
Check Buffer Cir-
cuit around V802
Check antenna
connection, check
Filter C742, C743
and L610
Issue 1 05/04