Service manual

3-54
ELECTRICAL TROUBLESHOOTING GUIDE
1. System operation flow
Power On
No
Yes
Yes
Yes
No
No
No
Show LOGO
Tray Closed?
Tray Close to Closed position
SLED Moves to Inner Position
OPEN/ CLOSE
Key?
Receive
CLOSE Key?
1. Stop Playback & Open Tray
2. Display tray open message & LOGO
1. Execute Pressed Key & IR Key
Judge whether have disc and disc type
2. Jump to related disc reading procedure
SLED at Inner
Side?
1. 8032 initializes SERVO, DSP & RISC registers
2. Write RISC code to SDRAM
3. Reset RISC
DVD & AMP PART