Can’t read disc or can’t open the disk door
Yes
Check the connection 4pin cable from the
main board
Can’t read disc or can’t
open the disk door
Check 24pin cable from
main board connection to
the loader is normal
Replace the loader
NO
GO
Check whether the
DVD loader running is
normal
Fix the connection the 24pin cable
NO
Yes
Trouble shooting chart
Check if U20 (pin110,111)
voltage is normal
Replace main board
NO
Check if XP100 (pin2,6)
voltage is normal
Relace Q100,Q101
Yes
Yes
NO
5- 4
Summary of Contents for HTD5540/12
Page 42: ...7 11 7 11 Front Control Board print layout ...
Page 43: ...7 12 7 12 Power Board print layout ...
Page 44: ...7 13 7 13 Main Board print layout bottom side ...
Page 45: ...7 14 7 14 Main Board print layout top side ...
Page 48: ...SPHE8203R Rx MAIN IC BLOCK DIAGRAM 9 1 ...
Page 49: ...SPHE8203R Rx SIGNAL DESCRIPTION Pin Configuration 9 2 ...
Page 53: ...10 1 10 1 Exploded View for HTD5540 12 93 ...
Page 54: ...Exploded View for HTD5510 94 HTD5540 94 HTD5570 94 10 2 10 2 ...
Page 55: ...Exploded View for HTD5510 98 HTD5540 98 HTD5570 98 10 3 10 3 ...
Page 56: ...1 1 1 Revision List Version 1 0 γ Initial Release for HTD5540 12 98 94 93 ...