Power supply Trouble Display Trouble Exceptional screen Check if the cable for panel is correct and Connected tightly Check if the LCD panel is OK Check if the output circuit jack is normal Change the cable for Panel connector Check the circuit of U14 Repair the damage Change LCD circuit...
Display Trouble white screen White screen Check the power supply for panel Check the switch signal for Q8/AO3401’s Check the output signal of U14 G-pole voltage (3.3V~0V or 5V~0) Change the LCD panel Check the circuit of U14 pins Change U14 Check CN17 or change Or the cable to panel Or if the I/O of U14 is damage...
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No Sound Check if have audio signal input Check the set of volume, Mute is normal Check signal output on pin no. 4 & 6 of U1 Is normal Check power supply (>11V)on pin no. 7 of U21/TDA1517P Check the voltage (>9.2V) on pin no.8 Of U21 Check the signal output on pin 50 &51 of U14 Does it has signal input on U14...
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TV cannot scan any channel/ picture Check if the RF cable do have signael Check the pin no. 7 of T1 is 5V Check the pin no. 4 & 5 of T1 has date of Check the pin no. 8 of T1 has signal Check pin no.
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8 Function Trouble PC Under PC channel color fade Picture is not in center No signal Image Stabilization Check the R.G.B input Check if VS,HS signal is signal for U14 ruled and stable OSD settings do Do “Auto adust Check the circuit Check Check the circuit of VS, HS Reset...
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9 Function Trouble SCART , HDMI,S-VIDEO,CVBS SCART RGB .SCART Video. HDMI,S-VIDEO,CVBS HDMI,S-VIDEO CVBS has no signal Color fade Have no signal Check the signal input Check the input of R.G.B. of CN9 is normal Of U14 Whether the pin no.18 Check the wire from CVBS of U14 has input? terminal to signal source...
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1. Hardware connection: 1.1 Connect the USB ISP tool to install of PC, then port driver. 1.2 For board upgrade, Connect the USB ISP tool and blue CN18 of main board with 4pin cable as below picture. 1.3 For CBU upgrade, Connect the USB ISP tool to VGA board with 4pin cable, then plug the VGA board to...
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2. Install software: 2.1 Advise to use English WINDOWS XP OS, and please open the control panel of WINDOWS,enter view item of folder option,cancel seleting hidden extension of known file type. 2.2 copy folder ISP_TOOL_V and folder USB_DRIVER to PC. 2.3 Install USB Driver from folder USB_DRIVER.after installation finish, please restart PC.
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3.3 Press “Read” to choose burning file as below picture. 3.4 Open the burning file(*.bin). 3.5 Power on, press “Connect” to connect the main board.
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3.5.1 If connect success, picture will be as below.Press “OK” continue. 3.5.2 If connect fail, picture will be as below. Press “OK” check. 3.5.2.1 Check tool connect and driver install of USB ISP tool first. 3.5.2.2 Check the power connect and power on.
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3.5.3.1 Burning, Please wait 3.5.3.2 Burn finished. Pease power of ,then take out the power plug and USB ISP Tool plug 3.6 If burn fail, please retry again from 3.5 step. Warning:Don’t disconnection the power while upgrading! Note:please restore the data after upgraded...
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Setting item. Select Reset item,then press RIGHT Select RESET EEPROM item,press RIGHT button to do reset EEPROM. 3.2.Select this item,you may adjust the inner data, as follow: ADC ADJ for VGA:step1,step2(AUTO ADJ) RESET EEPROM(restore inner data)1,2,3:...
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