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TROUBLESHOOTING FLOW CHARTS
TROUBLE SHOOTING for DIGITAL MODULE (Device error check)
Digital Main P.W.B has five LED (KNIGHT RIDER) on board.
After Power ON these LED will be turned on in sequence as follows.
It may take a few seconds for the sequence.
LED sequence
Sequence
1 (Start)
2
3
4
5 (End)
○ is turn off the LED, ● is Lighting the LED
After Program is loaded without error, all LED will be turned off.
Any LED should not light.
If some errors occur, LED will show the error pattern.
(1) Check that LED is not lit.
(2) If LED is lit, refer to the following table and check the involved devices.
(42" only)
Location of LEDs
Digital Main Board
TABLE OF CONTENTS
D205
D204
(Red)
(Green)
<PiO04>
<PiO03>
○
○
○
○
○
○
○
●
○
○
D203
(Yellow)
(Orange)
<PiO02>
<PiO01>
○
○
●
●
○
LED5 (D205)
LED4 (D204)
LED2 (D202)
LED3 (D203)
51
D202
D201
(Red)
<PiO00>
○
●
●
●
●
●
●
●
○
○
LED1(D201)
DW2U
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