4. TROUBLE SHOOTING
- 117 -
Figure 4-74.
CHECKING FLOW
START
Does the LCD itself
Has no trouble ?
YES
NO
Is the connection
of CCD Sensor FPCB
With Connector on PCB
(CON100,CON200)
Ok?
YES
Check the Soldering of
CON100,CON200
Check the Voltage
of FB602 is 2.8V ?
YES
NO
Go to the LCD trouble
NO
NO
Reassemble CCD Sensor FPCB with
CON100, CON200 connector
Resoldering CON100, CON200 connector
Replace the U602 or Resoldering FB602
YES
Check the Voltage
of U100 on Sub PCB
is 2.8V and 3.3V ?
NO
YES
Replace the U100 or
Check the signal of 2 ñ3 Pin at U100
Check the Voltage
of 3 pin at Q100,Q101 is
1.8V,2.8V ?
NO
Replace theQ100,Q101 or
Check the signal of 1 Pin at Q100,Q101
YES
NO
YES
Next Page
Check the Voltage
of U101 on Camera PCB
is +15V and -7.5V ?
Replace the U101 or
Check the signal of 8 Pin at U101
Содержание KG920
Страница 3: ... 4 ...
Страница 48: ...3 TECHNICAL BRIEF 49 3 8 2 AFE Analog Front End Figure 3 22 ...
Страница 52: ...3 TECHNICAL BRIEF 53 3 8 5 MBGM01 5M CCD ISP Figure 3 25 ...
Страница 55: ...3 TECHNICAL BRIEF 56 3 8 6 MV8620 5M back end IC Multi Media Function Figure 3 26 ...
Страница 58: ...3 TECHNICAL BRIEF 59 3 9 MIDI IC YMU787 Figure 3 27 YMU787 BLOCKDIAGRAM ...
Страница 87: ...4 TROUBLE SHOOTING 88 Graph 4 8 BLUE RST Graph 4 9 DEBUG_TX RX Graph 4 10 PCM_SYNCS TX RX USC0 ...
Страница 96: ...4 TROUBLE SHOOTING 97 4 7 KEY backlight Trouble TEST POINT Q101 R122 Q101 LD101 LD119 Figure 4 38 Figure 4 39 ...
Страница 108: ...4 TROUBLE SHOOTING 109 CIRCUIT WAVEFORM Figure 4 59 Graph 4 11 Figure 4 60 Figure ...
Страница 109: ...4 TROUBLE SHOOTING 110 TEST POINT U602 FB602 U100 Q100 Q101 C113 C114 Figure 4 61 Figure 4 62 ...
Страница 111: ...Figure 4 65 Graph 4 12 4 TROUBLE SHOOTING 112 C102 C113 U101 Figure 4 66 C137 U103 TEST POINT WAVEFORM ...
Страница 112: ...4 TROUBLE SHOOTING 113 Figure 4 67 Figure 4 68 CIRCUIT ...
Страница 115: ...4 TROUBLE SHOOTING 116 WAVEFORM Graph 4 13 ...
Страница 139: ...6 BLOCK DIAGRAM 140 6 BLOCK DIAGRAM Figure 6 1 ...
Страница 148: ... 149 8 PCB LAYOUT ...
Страница 149: ... 150 8 PCB LAYOUT ...
Страница 150: ... 151 8 PCB LAYOUT ...
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Страница 152: ... 153 8 PCB LAYOUT ...
Страница 153: ... 154 8 PCB LAYOUT ...
Страница 154: ... 155 8 PCB LAYOUT ...
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Страница 194: ...Note ...
Страница 195: ...Note ...