BenQ G2200we Service Manual
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Page 41
22″ LCD Color Monitor BenQ G2200WE 41 Key Board C 22 Sunday , J uly 08, 2007 02. KEY BOAR D G2695-C -1-X-2-070604 OEM MOD EL Size R ev Date Sheetof TPV MOD EL PC B N AME 称爹 T P V ( Top Victory Electronics Co . , Ltd. ) Key Component絬 隔 瓜 絪 腹 SW 006 SW 1 2 C 004 N C / 0. 001uF SGN DSGN DSGN DSGN D SW 002SW 1 2 LED_GRN# C 011 0. 1uFSW 003 SW 1...
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22″ LCD Color Monitor BenQ G2200WE 42 Troubleshooting Frequently asked questions (FAQ) The image is blurred: Read the instructions on the link Adjusting the Screen Resolution on the CD, and then select the correct resolution, refresh rate and make adjustments based on these instructions. How do you use a VGA extension cable? Remove the extension cable for the test. Is the image now...
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22″ LCD Color Monitor BenQ G2200WE 43 Is the prompt on the display illuminated in orange? If the LED is illuminated in orange, the power management mode is active. Press any button on the computer keyboard or move the mouse. If that does not help, check the signal cable connectors. If any pin is bent or broken off, please contact your dealer to get necessary support. Is the prompt on...
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22″ LCD Color Monitor BenQ G2200WE 44 Ma in Board (1) No Power No power Press power key and look if the picture is normal Please reinsert and make sure the DC of 12V is normal Reinsert or check the power section Check if X401 oscillate waveforms are normal Measure U201 Pin2=3.3V OK OK NG NG NG Replace U201 Check U 401 Replace X401 OK NG Check CN 201 PIN3, 4 = 5V...
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22″ LCD Color Monitor BenQ G2200WE 45 (2) No picture No picture OK NG X401 oscillate waveforms are normal Replace X401 Check if the sync signal from computer is output and video cable is connected normally Input the sync signal of computer, or change the cable NG OK NG Check U401 Replace U401 Measure U201 Pin2=3.3V OK NG Replace U 201 Check CN 201 PIN3, 4 = 5V Check...
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22″ LCD Color Monitor BenQ G2200WE 46 (3) White screen White Screen Measure Q 602 base is low level? X401 oscillate waveform is normal Check Correspondent component. Replace Panel Check Correspondent component. OK OK Replace X401 NG NG NG NG Check reset circuit of U401 i l OK Check Q 602 is broken...
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22″ LCD Color Monitor BenQ G2200WE 47 Power Board No Power Check ZD902=12V Check AC line volt 110V or 220V Check AC input Check the voltage of C905 (+) Check bridge rectified circuit and F901 circuit Check start voltage for the pin 5 of IC901 Check R905, R 906, R9 07 Change IC901 NG Check the...
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22″ LCD Color Monitor BenQ G2200WE 48 W / LED, No Backlight Check Inverter input =1 2 V NG OK Check adapter and T801 Check ON/OFF signal Check Interface board or main board NG OK Check IC801 PIN4 = 5V NG OK Change ON/OFF circuit Check IC801 PIN 1 PWM wave NG OK Check IC801 Check Q80 5, Q806 Drain wave NG Check the...
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22″ LCD Color Monitor BenQ G2200WE
49
Ke y Board
OSD is unstable or not working
Is Key Pad Board connecting normally? Connect Key Pad Board
Is Button Switch normally? Replace Button Switch
Y
N
N
Is Key Pad Board normally? Replace Key Pad Board
Y
N
Y
Check Main Board
Page 50
22″ LCD Color Monitor BenQ G2200WE 50 PCB LAYOUT Main Board