4. TROUBLE SHOOTING
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4.13 Ear Jack Trouble
4.13 Ear Jack Trouble
SETTING : After Initialize Agilent 8960, Test in EGSM, DCS Mode
START
Does the audio profile of the
phone change to the earphone
mode?
Earphone will work
properly
Inset the earphone
to the phone
Set the audio part of the test
equipment to echo mode.
Yes
No
No
Yes
Change the earphone
and try again
Can you
hear your voice from the
earphone?
Can you hear your voice
from the earphone?
voltage at pin1 of
U204 = 2.8V?
Check the
soldering U204
No
Check the
soldering J200
No
Replace
U204
No
Re-soldering
U204
Re-soldering
U204
Yes
Yes
Yes
Yes
Yes
Set the audio part of test
equipment to PRBS or
continuous wave mode
No
Can you hear your voice
from the earphone?
Yes
No
Download
S/W
voltage at
C227=~1.2V
Yes
Check soldering
C227,R224,J200
Download
S/W
No
Re-solder
C227,R224,J200
Not good
Yes
Replace
main board
Voltage at
C224=~1.6V
Yes
Voltage at pin4
of U203=~1V
No
Yes
Re-soldering
U301
Re-soldering
R219
No
Check soldering
of R226,C228
Yes
Replace
main board
Re-soldering
R226,C228
No
Содержание G1610
Страница 1: ...Service Manual Model G1610 Service Manual G1610 P N MMBD0045701 Date February 2005 Issue 1 0 ...
Страница 52: ...4 TROUBLE SHOOTING 51 Graph 4 14DCS TX Graph 4 15EGSM TX VC1 VC2 VC1 VC2 VC1 VC2 VC1 VC2 ...
Страница 70: ...5 DISASSEMBLY INSTRUCTION 69 5 DISASSEMBLY INSTRUCTION Figure 5 1 Figure 5 2 ...
Страница 71: ...5 DISASSEMBLY INSTRUCTION 70 Figure 5 3 Figure 5 4 ...
Страница 72: ...5 DISASSEMBLY INSTRUCTION 71 Figure 5 5 ...
Страница 73: ...5 DISASSEMBLY INSTRUCTION 72 Figure 5 6 1 3 2 4 Figure 5 7 1 2 3 ...
Страница 74: ...5 DISASSEMBLY INSTRUCTION 73 Figure 5 8 4 2 3 1 2 1 Figure 5 9 ...
Страница 75: ...5 DISASSEMBLY INSTRUCTION 74 Figure 5 10 ...
Страница 82: ...6 DOWNLOAD AND CALIBRATION 81 11 Wait until Sending Block is completed 1 Wait Until Sending Block is completed ...
Страница 86: ...7 BLOCK DIAGRAM 85 7 BLOCK DIAGRAM Power supply ...
Страница 87: ... 86 ...
Страница 101: ...11 STAND ALONE TEST 100 11 2 Standalone Test Equipment Setup GSM Test Equipment Power Supply RS 232 Cable PC JIG Phone ...
Страница 108: ...12 AUTO CALIBRATION 107 12 3 Equipment Setup Figure 12 1 Equipment Setup ...
Страница 111: ...12 AUTO CALIBRATION 110 ...
Страница 113: ...13 EXPLODED VIEW REPLACEMENT PART LIST 112 ...