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Now downloading free:Samsung Troubleshooting

Samsung Troubleshooting free download

LCD television

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File name:Troubleshooting.pdf
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Model:Troubleshooting 🔎
Original:Troubleshooting 🔎
Descr: Samsung LCD TV LE32-37-40S62B LE32-37-40S62B_ch_gsa32-37-40heu Troubleshooting.pdf
Group:Electronics > Consumer electronics > TV > LCD TV
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File name Troubleshooting.pdf

4 Troubleshooting 4 Troubleshooting 4-1 First Checklist for Troubleshooting 1. Check the various cable connections first. - Check to see if there is a burnt or damaged cable. - Check to see if there is a disconnected cable connection or a connection is too loose. - Check to see if the cables are connected according to the connection diagram. 2. Check the power input to the Main Board. 3. Check the voltage in and out between the SMPS Main Board, between the SMPS INVERTER Board, and between the Main LVDS Boards. 4-1 4 Troubleshooting 4-2 Checkpoints by Error Mode 4-2-1 No Power LAMP off, power indicator No Check a connection a power cable. LED red color? Yes Does proper DC 12V, DC 5V No Change a Assy PCB Power. appear at CN101? Yes Does proper DC A3.3V, No Check a IC104, Q104. A5V appear at Change a main PCB ass'y. C126, C127? Yes Does proper DC 12V, 9V, 3.3V, No Check a IC102_CPT, IC101, IC105, 2.5V, 1.8V appear at C109, IC106, IC109. C105, C132, C145, C159 ? Change a main PCB ass'y Yes No Check a other function. A power is supplied to set? (No picture part) Replace a lcd panel. 4-2 4 Troubleshooting 4-2-2 No Video (Analog PC) Power Indicator is off. Lamp on, no video. Yes Check a PC source and check No Input a analog PC signal and the connection of DSUB cable? connected cable(DPMS). Yes Does the signal appear at C313, No PC cable. Change a PC 1 C316, C320 near IC602? cable. Change a main PCB ass'y. Yes Does the digital data appear No Check a IC602 at the output of Change a main PCB ass'y. LVDS (R716, 717, 719~726)? Yes Check a LVDS cable? No Replace a lcd panel? Please, Call to Samsung Co. LTD. 4-3 4 Troubleshooting WAVEFORMS 1 R,G,B Output Signal of IC602 4-4 4 Troubleshooting 4-2-3 No Video (Digital-HDMI) Power Indicator is off.

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