3-7
RESET or power on.
NO
NO
YES
Check connection lines
between FLASH & MT1389S
and the FLASH access time
whether is suitable or not.
NO
YES
Check connection lines
between SDRAM & MT1389S
and the SDRAM is damaged.
NO
YES
Check the related
circuit of MT1389S.
NO
YES
Check the filtering and amp
circuit of TV signal.
Check AV cable
connection to TV set.
NO
NO
YES
Check the load
OPEN & CLOSE switch
NO
YES
Check the tray control I/O
pins on MT1389S & AM5890.
NO
YES
Check the tray control
amplifying circuit on Motor driver.
Check the cable connection
between main PCBA and loader.
YES
YES
Show LOGO?
Flash
memory operates
properly?
MT1389S
VIDEO outputs
properly?
Normal
TROUT & TRIN
signals?
Normal
TRCLOSE & TROPEN
signal?
Normal
LOAD+ & LOAD-
signal?
Does
tray move inside
when it is not at closed
position?
SDRAM
works properly?
Have TV
signal output?
A
B
ELECTRICAL TROUBLESHOOTING GUIDE
Summary of Contents for T517AH
Page 9: ...1 8 MEMO ...
Page 30: ...3 17 FIG 7 2 DVD F FE RFL FIG 7 3 CD F FE RFL ...
Page 35: ...3 22 13 AUDIO OUTPUT FROM MT1389S FIG 13 1 ...
Page 36: ...3 23 CONNECTOR PICTURE 1 ALL CONNECTOR PICTURE ...
Page 37: ...3 24 2 MAIN BOARD CONNECTOR PICTURE ...
Page 38: ...3 25 CN201 MD 23PIN 3 CN201 CONNECTOR PICTURE CN202 MD 9PIN 4 CN202 CONNECTOR PICTURE ...
Page 39: ...3 26 CN602 POWER 10PIN 6 CN602 CONNECTOR PICTURE CN601 Front 12PIN 5 CN601 CONNECTOR PICTURE ...
Page 40: ...3 27 CN604 USB 4PIN 7 CN604 CONNECTOR PICTURE CN605 KARAOKE 4PIN 8 CN605 CONNECTOR PICTURE ...
Page 41: ...3 28 CN705 5 1ch 12PIN 9 CN705 CONNECTOR PICTURE ...
Page 49: ...3 37 3 38 2 MPEG CIRCUIT DIAGRAM ...
Page 50: ...3 39 3 40 3 SERVO CIRCUIT DIAGRAM ...
Page 51: ...3 41 3 42 4 JACK CIRCUIT DIAGRAM ...
Page 52: ...3 43 3 44 5 SCART CIRCUIT DIAGRAM OPTION ...
Page 53: ...3 45 3 46 6 USB CIRCUIT DIAGRAM 7 KEY CIRCUIT DIAGRAM ...
Page 54: ...3 47 3 48 8 TIMER CIRCUIT DIAGRAM ...
Page 57: ...3 53 3 54 PRINTED CIRCUIT BOARD DIAGRAMS 1 MAIN P C BOARD TOP VIEW BOTTOM VIEW ...
Page 59: ...3 57 3 58 5 SCART P C BOARD OPTION TOP VIEW BOTTOM VIEW 6 USB P C BOARD TOP VIEW BOTTOM VIEW ...
Page 65: ...4 6 MEMO ...
Page 67: ...4 9 4 10 MEMO MEMO ...