4. TROUBLE SHOOTING
- 75 -
Checking Flow
SETTING : Connect PIF to the phone, and Power on. Enter the engineering mode, and set
"Melody on" at Buzzer of BB test menu.
START
Voltage across C409
> 3.3 V?
Replace U102
( ABB LDO)
No
Yes
The voltage
of R075 is ~2.8V
Yes
Check the state of contact of
dual mode speaker
Speaker
Working!!
Yes
Check the signal level of
C406,C407
No
Replace U401
No
Replace U402
Check the soldering of
U402
No
Yes
Re-soldering
U402
No
Replace speaker
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 ...