Service Manuals, User Guides, Schematic Diagrams or docs for : LG Audio FL-R900K f900ktroub

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f900ktroub


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                                     TROUBLESHOOTING

1. POWER PART

          Turn power on.

            YES

                                         NO   PN402, PN804 +5V(AII)    NO
  IC402 Pin 1 input +5V(D1)                                                 PN402, PN804 Defective.
                                              check?

            YES                                        YES
  IC402 Pin 6 PCTL output?                    IC802, 805 Surrounding
                                              circuitry defective.
           OFF ON 5V

                                         NO



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