Diagnostic Software, Trouble Shooting And Test Instructions - Philips DVD625K Service Manual

5. Diagnostic Software, Trouble Shooting and Test Instructions

Diagnostic Software reserved. It will be prepared later.
5.1 System working procedure for MediaTeK DVD-Player (MT1379 + MT1366)
Power on
1. Initialize related registers (servo, DSP, RISC)
2. Move code related with RISC to SDRAM
3. Reset RISC
Display LOGO
Does tray close?
close tray
Yes
Does SLED move to inside?
Move to inside
1. Judge if a disc has loaded
2. Jump to related subroutine acc. to the type
of disc
Do it receive a command
to open the tray?
1. Key scan or receive RC singnal
2. Run the other subroutine
1. Stop play disc, then open tray completely
2. Display picture and information of opening
No
Does it receive the command to close
tray?
N
No
YES
No
No No No
YES
22
YES