6. Troubleshooting process for “Machine not switched on” is sown in the figure 3.3.2.6:
Machine not switched on
Whether adapter is
charged
Whether
S2 has open circuit and
false welding
Whether D8 is on
Refer to troubleshooting
flow chart for "Power not on”
Check whether 3.3V power
supply of R10 is normal
Check whether R12 or D3
has open circuit
Check whether EN end is
normal
Whether Q2 is normal
Change S2
N
N
Y
N
Y
Y
N
Y
Figure 3.3.2.6 ON/OFF control circuit troubleshooting flow chart
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Содержание X21
Страница 1: ...service manual X21 RU ...
Страница 42: ...3 L1 1 8V energy storage waveform diagram 4 LCD_CS wabeform 5 LCD_D C waveform diagram 37 ...
Страница 43: ...6 LCD_RESET 7 LCD_WR waveform diagram 8 LCD_RD waveform diagram 38 ...
Страница 44: ...9 LCD_DB0 waveform diagram 1 1 L C D _ D B 2 w a v e f o r m d i a g r a m 10 LCD_DB1 waveform diagram 39 ...
Страница 45: ...12 LCD_DB3 waveform diagram 13 LCD_DB4 waveform diagram 14 LCD_DB5 waveform diagram 40 ...
Страница 46: ...15 LCD_DB6 waveform diagram 16 LCD_DB7 waveform diagram 17 IREF waveform diagram 41 ...
Страница 47: ...18 VCOMH waveform diagram 42 ...
Страница 66: ...Chapter Cinque PCB board Circuit diagram Section One PCB board X21 PCB Board 61 ...