LG LH-T6740, Service Manual

Page: 27 / 57

- 3-2 -
2. System operation flow
Power On
1. 8032 initializes SERVO, DSP & RISC registers
2. Write RISC code to SDRAM
3. Reset RISC
Show LOGO
Tray Closed?
Tray Close to Closed position
NO
SLED at Inner
Side ?
SLED Moves to Inner Positi on
NO
YES
YES
Reci eve
OPEN/CLOSE
Key?
1. Execute Pressed Key & IR Key
2. System operation Routine Loop
NO
1. Stop Playback & Open Tray
2. Display tray open message & LOGO
Receive
CLOSE Key?
NO
YES
YES
1. Judge whether have disc and disc type
2. Jump to related disc reading procedure