Samsung 09 Troubleshooting free download

File name 09_Troubleshooting.pdf

4 Troubleshooting 4 Troubleshooting 4-1 No Power LAMP Off, power indicator LED No Check a connection power cable. on? P/N: BN39-00639A Yes s Ye Does proper Stand-By DC No Change the Main Power Ass'y A5V appear at C1875 ? 40" : BN44-00140A 46" : BN44-00141A Yes 52" : BN44-00150A Does proper Main DC No B12V,B5V,B12VS appear at C181, C186, C167? Yes Does proper Inverter DC No 120V appear at CN102 in SMPS? Yes Check IC151 Change the Main Ass'y Does proper DC A3.3V appear No 40 " : BN94-01008E at C159 ? 46" : BN94-01008D 52" : BN94-01107A Yes Check Does proper DC S3.3V_D, IC183, IC185, IC102, IC103, IC104, IC105 No B3.3V, +12V,B5V appear at Change the Main Ass'y C1847,C1858, C181,C1834? 40 " : BN94-01008E 46" : BN94-01008D Yes 52" : BN94-01107A Does proper MEM_S2.5V No Check IC015, IC041 ALBA_S1.2V appear at Change the Main Ass'y C0148,C0425? 40 " : BN94-01008E 46" : BN94-01008D 52" : BN94-01107A Yes No Check a other function (No picture part) A power is supplied to set ? Replace a LCD Panel 40" : BN07-00288A 46" : BN07-00291A 52" : BN07-00340A 4-1 4 Troubleshooting 4-2 No Video (Analog PC Signal) Power Indicator is off. Lamp on, no video Yes Check the PC source and No Input an analog PC signal. check the connection of Check the connected cable. DSUB? Yes Does the signa