- 62 -
4.11 Key Backlight LED Trouble
START
PIF Power On
Is the voltage level at Pin1 at
O301 about 1.2V?
Are all LEDs
LD300~LD305 working
Backlight LED
Working!!
Check the soldering of
R313,R315
Check the soldering or
Replace LEDs not working
No
Yes
Yes
No
KEY BACKLIGHT
R316
0
100K
R315
C319
27p
R310
47
C322
27p
C323
C317
27p
0.1u
15
R317
R312
0
R314
4.7K
LD300
LEBB-S14H
27p
C320
R308
47
27p
C321
R306
47
47
R309
10K
R311
LEBB-S14H
LD305
C318
0.1u
LEBB-S14H
LD303
LEBB-S14H
LD301
1.5K
R313
47
R305
IMX9T110
Q301
2
56
31
4
LEBB-S14H
LD304
LD302
LEBB-S14H
27p
C324
47
R307
COM
5
3
GND
IN
1
4
NC
NO 6
VCC
2
MAX4599EXT-T
U302
KEY_BACKLIGHT
RPWRON
4. TROUBLE SHOOTING
Figure 4-25.
Figure 4-26
SETTING : After initialize Agilent 8960, Test in EGSM, connect PIF to the phone,
and Power on. Enter The engineering mode, and set “Vibrator on” at Vibration
of BB test menu
R312
R302
R311
R313
R315
Q301
R316
LD304
R309
R307
LD302
R305
LD300
LD301
R306
R310
LD305
LD303
R308
Содержание C3100
Страница 1: ...Service Manual Model C3100 Service Manual C3100 P N MMBD0033001 Date June 2004 Issue 1 0 ...
Страница 51: ...Graph 4 15 EGSM TX 50 VCX VC2 VCX VC2 4 TROUBLE SHOOTING Graph 4 14 DCS TX ...
Страница 67: ...5 DISASSEMBLY INSTRUCTION Figure 5 1 Figure 5 2 66 5 DISASSEMBLY INSTRUCTION ...
Страница 68: ... 67 5 DISASSEMBLY INSTRUCTION Figure 5 3 Figure 5 4 ...
Страница 69: ... 68 Figure 5 5 5 DISASSEMBLY INSTRUCTION ...
Страница 70: ... 69 5 DISASSEMBLY INSTRUCTION Figure 5 6 Figure 5 7 1 3 2 4 1 2 3 ...
Страница 71: ... 70 Figure 5 8 Figure 5 9 5 DISASSEMBLY INSTRUCTION 4 2 3 1 2 1 ...
Страница 72: ... 71 5 DISASSEMBLY INSTRUCTION Figure 5 10 ...
Страница 83: ... 82 7 BLOCK DIAGRAM 7 BLOCK DIAGRAM Power supply ...
Страница 90: ... 89 9 PCB LAYOUT 9 PCB LAYOUT ...
Страница 91: ... 90 9 PCB LAYOUT ...
Страница 98: ... 97 11 3 HW Test Software for Standalone Test Setup 11 STAND ALONE TEST ...
Страница 100: ... 99 Tx Stand alone Test Setting 11 STAND ALONE TEST ...
Страница 102: ... 101 Rx Stand alone Test Setting 11 STAND ALONE TEST ...
Страница 104: ... 103 12 3 Equipment Setup Figure 12 1 Equipment Setup 12 AUTO CALIBRATION ...
Страница 107: ... 106 12 AUTO CALIBRATION ...
Страница 108: ... 107 13 EXPLODED VIEW REPLACEMENT PART LIST 13 EXPLODED VIEW REPLACEMENT PART LIST 13 1 Exploded View ...
Страница 109: ... 108 13 EXPLODED VIEW REPLACEMENT PART LIST ...