G800 Shf Oscillator Faulty - Nokia 9210 Repair Hints

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Customer Care Europe & Africa
SCCE Training Group

G800 SHF oscillator faulty

RF faults
G800 SHF oscillator
faulty
Use WinTesla to set
phone to EGSM I/Q
tuning mode
(Menu: Tuning/ TX I/Q)
Check TX-Spectrum
(Center 902 MHz)
nOK
Check Vsynte
(VSYN2/VCC) = 2.8 VDC
at R808
OK
Check
VC = 2.2 VDC at
R802
nOK
Check
Vchp = 4.7 VDC
at C560
nOK
Check
VCP = 4.9 VDC
at N600,
pin6
OK
Check N600 and surrounding components for
shorts or disconnections, change if necessary
© 2002 Nokia Mobile Phones
G800 SHF
OK
oscillator OK
Lift R808 and
check Vsynte
nOK
(VSYN2/VCC) = 2.7 VDC
on Hagarside`s pad
OK
Change G800
OK
SHF oscillator
Check N505
OK
HAGAR
Check N100
nOK
CCONT
CONFIDENTIAL
RAE-3
13.03.2002
Check N100 CCONT and
nOK
N505 HAGAR
Checked by:
Customer Care Training Group
10 (17)
Repairhints
Version 2.0 Approved
Approved by:
SCCE

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