Table of Contents
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A
RESET or Power On.
NO
Show LOGO?
YES
Does Tray move
NO
inside when it is not
at closed position?
YES
Check the cable connection
B
between main PCBA and loader.
NO
Flash Memory operates
properly?
YES
NO
SDRAM works properly?
YES
NO
MT1389 VIDEO outputs
properly?
YES
NO
Have TV signal output?
YES
Check AV cable connection
to TV set.
NO
Normal TROUT &
TRIN signals?
YES
NO
Normal TRCLOSE &
TROPEN signal?
YES
NO
Normal LOAD+ &
LOADsignal?
YES
- 3-4 -
Check connection lines between FLASH
& MT1389 and the FLASH access time
whether is suitable or not.
Check connection lines between
SDRAM & MT1389 and the SDRAM
is damaged.
Check the related circuit of MT1389.
Check the filtering and amp circuit of
TV signal.
Check the load OPEN & CLOSE
switch
Check the Tray control IO pins on
MT1389 & IP4504.
Check the Tray control amplifying
circuit on Motor driver.
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