3-1
ELECTRICAL TROUBLESHOOTING GUIDE
1. System operation flow
SECTION 3. DVD & AMP PART
1. Initializes SERVO, DSP & RISC registers.
2. Write RISC code to SDRAM.
3. Reset RISC.
Show LOGO.
Yes
Yes
Yes
No
No
No
No
Tray close to closed position.
SLED moves to inner position.
1. Judge whether have disc and disc type.
2. Jump to related disc reading procedure.
1. Execute Pressed Key & IR Key.
2. System operation routine loop.
1. Stop Playback & Open Tray.
2. Display tray open message & LOGO.
POWER ON.
Tray closed?
SLED at inner
side?
Recieve
OPEN/ CLOSE
Key?
Receive
CLOSE Key?
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