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Table of Contents
Failure & Troubleshooting of Power Supply .......................................................................................... 4
Troubleshooting and service of the Loader ........................................................................................... 4-5
Troubleshooting and service of Decoding Part ...................................................................................... 5
Troubleshooting and service of Video Part ............................................................................................6
Troubleshooting and service of Audio Part ............................................................................................6
Troubleshooting and service of KARAOKE Part .................................................................................... 6
Servo schematic circuit 2 .................................................................................................................... 9
Decoder schematic circuit 2 ................................................................................................................ 11
Front control board schematic circuit ................................................................................................... 12
Karaoke schematic circuit .................................................................................................................... 13
Figure 1. Schematic Diagram .............................................................................................................. 2
Figure 2. Basic Circuit Diagram ........................................................................................................... 3
Table of Contents .................................................................................................................... 1
Output schematic circuit ...................................................................................................................... 14
Power schematic circuit....................................................................................................................... 15
Decoder schematic circuit 1 ................................................................................................................ 10
Servo schematic circuit 1 .................................................................................................................... 8
Full screen display or no display on VFD .............................................................................................. 7
No operation or some keys on the front board, disordered display on VFD ............................................ 7
No sensitive remote reception, or no reception from the remote handset ............................................... 7
The machine can not be turned on or off ............................................................................................... 7
