Service Manuals, User Guides, Schematic Diagrams or docs for : Samsung DVD HT-DM155 Samsung HT_DM10_155_160 Troubleshooting

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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

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