Nokia 6310 - Page 19

CONFIDENTIAL
19 (29)
NPE-4 6310/NPL-1 6310i Repair Hints
Customer Care Europe, Middle East & Africa Version 3.0 Approved
SCCE Training Group Date 22.04.2003
© NMP 2003
Checked by:
SCCE Training Group
Approved by:
SCCE
Flowchart - No service → no TX
Set Phone to TX -Mode
EGSM 897.4 MHz,
Ch. 37, power level 10.
Set Spectrum Analyzer to
TX EGSM 897.4 MHz, Ch.37.
Check TX
EGSM 897,4 MHz
at R656.
Check TX
PCN 1747.8 MHz
at L602.
Check TX I/Q
67.71 kHz signal at
C764 and C766 at
both sides.
Check UEM D200.
Check
TXP VDC > 1.8 V
at C760 with
oscilloscope.
Check TXC
signal at C761
with oscilloscope.
Check UPP
D400.
Check UEM D200.
Check 26 MHz
at C752.
Check the
following voltages:
VR2 = 2.8 VDC at C294; VR3 = 2.8 VDC at
C602; VR4 = 2.8 VDC at C601;
VR5 = 2.8 VDC at C604; VR6 = 2.8 VDC at
C605; VR7 = 2.8 VDC at C299;
VrefRF01 & VrefRF02 = 1.35 VDC at R726;
VR1A = 4.7 V at R600.
Hagar N600
defective.
Check UEM D200.
Check 26 MHz
circuit, especially
G740.
No Service/
No TX EGSM/PCN.
Set Phone to TX -Mode
PCN 1747.8 MHz,
Ch.700, power level 10.
Set Spectrum Analyzer to
PCN 1747.8 MHz, CH. 700.
Check TX EGSM/PCN path from
Hagar to X802 antenna connector
for shorts or disconnections.
Probably N840 defective.
OK
nOK
nOK
OK
nOK
OK
nOK
OK
nOK
OK
nOK
OK
nOK
OK