Remote control does not work
Go
Yes
NO
Yes
Remote control
does not work
NO
Replace the battery for remote controller
Check whether the remote
controller’s battery is
exhausted or not.
In the front control board,check
IR601 pin1 Waveform
Replace IR601
YES
Trouble shooting chart
In the main board U20
pin 16 waveform
NO
Check the pcb layout
Replace main board
5- 3
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 ...