Troubleshooting Flow Charts - Hitachi 50VS69A Service Manual

TROUBLESHOOTING FLOW CHARTS

TROUBLE SHOOTING for DIGITAL MODULE (Device error check)
Digital Main P.W.B has five LED on board.
After Power ON these LED will be turned on in sequence.
It may take a few seconds for the sequence.
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.
Location of LEDs
Digital Main Board
TABLE OF CONTENTS
LED5 (D205)
LED4 (D204) LED2 (D202)
LED3 (D203)
50
LC67
LED1(D201)