Samsung Troubleshooting free download

File name Troubleshooting.pdf

9. Troubleshooting 9-1 Main 1.POWER Samsung Electronics 9-1 2.OUTPUT 9-2 Samsung Electronics 3. Protection(When High Voltage at Protection port) 3-1 In this case "LOW" for, Base port of Q 12(R2003 TR)at MAIN PCB Samsung Electronics 9-3 3-2 In this case "LOW" for Base of Q 13(A733)at Main PCB 3-3 Check the Connector Wire Ass'y Connection of each PCB ;DVD MECHA-Main PCB (8P, PW4) ;POWER TRANS-Main PCB (CW3) ;POWER TRANS-Main PCB (PW2) ;POWER TRANS-Main PCB (PW1) 9-4 Samsung Electronics 9-2 DVD Servo Parts V : 1V/div V : 1V/div V : 1V/div H : 5ns/div H : 5ns/div H : 5ns/div Fig. 1-2 Fig. 1-3 Fig. 1-4 Samsung Electronics 9-5 9-6 Samsung Electronics Samsung Electronics 9-7 9-8 Samsung Electronics 0.6V FE signal SBAD signal 1.6V Samsung Electronics 9-9 TF signal RFRP signal 9-10 Samsung Electronics V : 500mV/div V : 500mV/div V : 500mV/div H : 100ns/div H : 50ns/div H : 50ns/div Samsung Electronics 9-11 9-3 DVD MPEG Parts 9-12 Samsung Electronics Samsung Electronics 9-13 3.Audio operation 3 Check Audio out signal N Check Audio Digital signal at pin 23~28pin of AIC1 at pin 33,36,37 of U13 Y N Audio out Check Main AMP parts Y OK Audio Digital Signal 9-14 Samsung Electronics