Samsung Troubleshooting free download

File name Troubleshooting.pdf

Troubleshooting 6. Troubleshooting 6-1 Service Mode 1. To enter the Service Mode, press the remote-control keys in the following sequence: Display Picture Standard Mute Power 2. Use the Channel UP/DOWN keys to move within the Service Mode. 3. Use the Vol (+) key and Vol ( - ) key to change data. (1) Press the Vol (+) key to increase data. (2) Press the Vol (-) key to decrease data. 4. Use the Power key to exit and store data in memory. Samsung Electronics 6-1 Troubleshooting 6-2 No Power Check Stand-by 5V Yes on the Main Board No Check Check LED Operation SDA1/SCL1 Yes See "5-7 LED Display on the Micom Check" Module See "6-5 No Standy" No Check/Replace Tuner MICOM Module AUDIO Module A/V Terminal Board (TDA6920) Progressive Module LCD Control Board (TDA4780) 6-2 Samsung Electronics Troubleshooting 6-3 No Picture Yes Check IC101 (TDA9810) No #10 (AGC), #12 (CVBS) Check Progressive No Module M-Y/CVBS,2Hsync,Vsync, Yes 2Y,2R-Y,2B-Y,Href Check/Replace IC101, Tuner Replace Progressive Module No Check ICL404 (TDA4780) Yes #14 (Sand castle pulse) No Check IC401,402,403 Yes #5 (74HC1230 Check No ICL404(TDA4780)#6(B-Y) Yes First check the circuitry