3-5
A
Flash Memory operates
properly?
Show LOGO?
Does Tray move inside when
it is not at closed position?
B
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
Check connection lines between
FLASH & MT1389E and the FLASH
access time whether is suitable or not.
NO
SDRAM works properly?
Check connection lines
between SDRAM & MT1389E
and the SDRAM is damaged.
NO
MT1389E VIDEO outputs
properly?
Check the related circuit of
MT1389E.
NO
Have TV signal output?
Check AV cable connection
to TV set.
Normal TROUT &TRIN
signals?
Check the filtering and amp
circuit of TV signal.
NO
Check the load OPEN &
CLOSE switch
NO
Normal TRCLOSE &
TROPEN signal?
Check the Tray control IO
pins on MT1389E &
AM5869S
NO
Normal LOAD+ &
LOAD - signal?
Check the cable connection
between main PCBA and
loader.
Check the Tray control
amplifying circuit on Motor
driver.
NO
Summary of Contents for DK763X
Page 27: ...3 16 FIG 7 2 DVD FIG 7 3 CD F F FE FE RFL RFL ...
Page 28: ...3 17 FIG 7 4 CD 8 FOCUS ON WAVEFORM FIG 8 1 DVD FE FOSO F F F FE RFL ...
Page 32: ...3 21 2 COMPOSITE VIDEO SIGNAL FIG 12 2 13 AUDIO OUTPUT FROM AUDIO MT1389E FIG 13 1 ...
Page 39: ...3 29 3 30 2 SYSTEM CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 40: ...3 31 3 32 A B C D E F G H I J K L M N O P Q R S T 3 SERVO CIRCUIT DIAGRAM ...
Page 41: ...3 33 3 34 4 AV JACK CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 42: ...3 35 3 36 5 TIMER CIRCUIT DIAGRAM 3 TOOL ONLY A B C D E F G H I J K L M N O P Q R S T ...
Page 43: ...3 37 3 38 6 TIMER CIRCUIT DIAGRAM 4 TOOL ONLY A B C D E F G H I J K L M N O P Q R S T ...
Page 44: ...3 39 3 40 7 TIMER CIRCUIT DIAGRAM 6 TOOL ONLY A B C D E F G H I J K L M N O P Q R S T ...
Page 45: ...3 41 3 42 8 TIMER CIRCUIT DIAGRAM 7 TOOL ONLY A B C D E F G H I J K L M N O P Q R S T ...
Page 46: ...3 43 3 44 9 TIMER CIRCUIT DIAGRAM 8 TOOL ONLY A B C D E F G H I J K L M N O P Q R S T ...
Page 49: ...3 49 3 50 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD TOP VIEW BOTTOM VIEW ...
