4. TROUBLE SHOOTING
- 73 -
SETTING : Enter the engineering mode, and set vibrator on at vibration of BB test menu
START
Is the voltage at pin 3
of Q300 high ?
YES
NO
Re-solder R371, R372
Is the voltage at pin 2
of Q300 low ?
YES
Is the voltage at pin 1
of Q300 high ?
YES
Check the soldering
of CN601 ?
YES
Check the soldering
of vibrator ?
YES
Replace Vibrator
YES
Vibrator is
Working well !!!
Check the soldering
of R371, R372
YES
NO
Re-solder R368
Check the soldering
of R368
YES
NO
NO
NO
Re-solder CN601
Check the soldering
of R369
YES
NO
Re-solder R369
Replace Q300
NO
Re-solder vibrator
NO
Checking Flow
Summary of Contents for C3380
Page 1: ...Service Manual Model C3380 Date November 2005 Issue 1 0 Service Manual C3380 ...
Page 3: ... 4 ...
Page 83: ...4 TROUBLE SHOOTING 84 4 11 KEY backlight Trouble Test Points Figure 4 22 ...
Page 109: ...Note 110 ...
Page 116: ... 117 8 PCB LAYOUT ...
Page 117: ... 118 8 PCB LAYOUT ...
Page 125: ...10 STAND ALONE TEST 126 Figure 10 2 HW test setting Figure 10 3 Ramping profile ...
Page 129: ... 130 ...
Page 131: ... 132 ...