19” LCD Color Monitor 190P7
54
Inverter board
No power
Check C811 (+) =5V
NG
OK
Check adapter section
Check ON/OFF signal
Check Interface section or main board
NG
OK
Check U811 pin 2=5V?
NG
OK
Check Q801
Check U811 Pin1/pin15 have the output of sawtooth wave at short time
NG
OK
Check U811 pin 5/pin6
NG
OK
Replace U811
Check Q821/Q841 pin5/pin8 is 12V?
Check PT801/PT802 pin7/pin8= 650V?
Cut all the pin connector of Q821/Q841, check C811 (+)=5V?
OK
NG
Unplug backlight connector wire, check
PT801/PT802 pin7/pin8 = 650V?
OK
NG
Replace backlight
Replace PT801/PT802
OK
NG
NG
Replace Q821/Q841
Check Q801
OK
Summary of Contents for Brilliance 190P7EB/27
Page 9: ...19 LCD Color Monitor 190P7 9 ...
Page 10: ...19 LCD Color Monitor 190P7 10 ...
Page 13: ...19 LCD Color Monitor 190P7 13 4 2 Factory Preset Display Modes ...
Page 14: ...19 LCD Color Monitor 190P7 14 4 3 Pixel Defect Policy ...
Page 15: ...19 LCD Color Monitor 190P7 15 ...
Page 16: ...19 LCD Color Monitor 190P7 16 ...
Page 17: ...19 LCD Color Monitor 190P7 17 5 Block Diagram 5 1 Monitor Exploded View ...
Page 21: ...19 LCD Color Monitor 190P7 21 5 3 2 Inverter Power Board ...
Page 29: ...19 LCD Color Monitor 190P7 29 7 PCB Layout 7 1 Main Board 715G1791 1 ...
Page 30: ...19 LCD Color Monitor 190P7 30 ...
Page 31: ...19 LCD Color Monitor 190P7 31 ...
Page 32: ...19 LCD Color Monitor 190P7 32 7 2 Power Board 715G1813 1 ...
Page 33: ...19 LCD Color Monitor 190P7 33 ...
Page 34: ...19 LCD Color Monitor 190P7 34 ...
Page 35: ...19 LCD Color Monitor 190P7 35 7 3 Key Board 715G1805 1 7 4 USB Board 715G1794 1 ...
Page 39: ...19 LCD Color Monitor 190P7 39 ...
Page 43: ...19 LCD Color Monitor 190P7 43 3 Disassembling the side covers as Fig 3 Fig 3 ...
Page 47: ...19 LCD Color Monitor 190P7 47 ...
Page 49: ...19 LCD Color Monitor 190P7 49 ...
Page 56: ...19 LCD Color Monitor 190P7 56 b Double click start to install as follows ...
Page 57: ...19 LCD Color Monitor 190P7 57 c There will be a shortcut key appears on the desktop ...
Page 60: ...19 LCD Color Monitor 190P7 60 d Until appears the follow Fig writer completed ...
Page 62: ...19 LCD Color Monitor 190P7 62 2 Connect the board as below 3 Run the SerialNumberGlobel exe ...
Page 63: ...19 LCD Color Monitor 190P7 63 4 It will display as below 5 Setting as below ...
Page 65: ...19 LCD Color Monitor 190P7 65 ...
Page 67: ...19 LCD Color Monitor 190P7 67 ...
Page 73: ...19 LCD Color Monitor 190P7 73 c Press Enter key to read analog as follow ...