4. TROUBLE SHOOTING
- 77 -
SETTING : After initialize Agilent 8960, Test EGSM, DCS mode
Graph 4-11
Checking Flow
START
Voltage across C141
= 2.5VDC?
No
MIC Bias Voltage
Yes
Check the signal level
at each side of MIC101.
Is it a few tens mVAC?
No
Replace the microphone, MIC101.
Check the soldering of
R127,R130, R132,
Yes
No
Resolder R127,R130, R132.
MIC WILL WORK.
Replace Main board.
Yes
Replace U102.
Voltage VMIC of U102
= 2.5VDC?
No
Yes
Resolder R123 & R125.
Waveform
MIC+
MIC-
Содержание C1150
Страница 1: ...Service Manual Model C1150 Service Manual C1150 Date October 2005 Issue 1 0 ...
Страница 3: ......
Страница 94: ...5 DOWNLOAD AND CALIBRATION 95 11 Wait until Sending Block is completed 1 Wait Until Sending Block is completed ...
Страница 99: ...Note 100 ...
Страница 104: ... 105 8 PCB LAYOUT 8 PCB LAYOUT ...
Страница 105: ... 106 8 PCB LAYOUT ...
Страница 113: ...10 STAND ALONE TEST 114 Figure 10 2 HW test setting Figure 10 3 Ramping profile ...
Страница 117: ...Note 118 ...
Страница 119: ... 120 Note ...
Страница 135: ...Note 136 ...