Digital Main P.W.B has five LED (KNIGHT RIDER) on board.
After Power ON these LED will be turned on
in sequence.
It may take a few seconds for the sequence.
○
is turn off the LED,
●
is Lighting the LED
After Program is loaded without error, all LED will be turned off.
No LED should be lit.
TROUBLE SHOOTING for DIGITAL MODULE (Device error check)
TROUBLESHOOTING FLOW CHARTS
Location of LEDs
㪛㫀㪾㫀㫋㪸㫃㩷㪤㪸㫀㫅㩷㪙㫆㪸㫉㪻
㪣㪜㪛㪌㩷㩿㪛㪉㪇㪌㪀
㪣㪜㪛㪈㩿㪛㪉㪇㪈㪀
㪣㪜㪛㪋㩷㩿㪛㪉㪇㪋㪀
㪣㪜㪛㪉㩷㩿㪛㪉㪇㪉㪀
㪣㪜㪛㪊㩷㩿㪛㪉㪇㪊㪀
51
DW
2
U
If any led remains lit, suspect main digital pwb.
Summary of Contents for 42HDS69/DW2-U
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Page 102: ...PRINTED CIRCUIT BOARDS DW2 U OPT PWB DW2 U 101 Component side Solder side ...
Page 105: ...PRINTED CIRCUIT BOARDS DW2 U CONTROL PWB DW2 U 104 Component side Solder side ...
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