Thursday, 28 February 2019

5 BLINKS FAULT – PLASMA 9TH GENERATION TVS

5 Blinks fault – Plasma 9th Generation TVs

Standby light blinks 5 times; and the set shuts down - Plasma TV
Power LED blinks 5 times
This is caused by abnormalities on the 5V line.
This could also happen if the VDA voltage is shorted.
5V distribution
Other Causes of 5V SOS
The Power LED could also blink 5 times if the VDA voltage is shorted [Normally by the Panel (de-multiplexer ICs)]
5V and VDA Distribution on the C Board.
How to properly isolate the C boards
When the ribbon cables from the D board to the C boards are disconnected in order to isolate the C boards, the Power LED will blink 6 times.
To properly isolate the C boards without having the Power LED blink, the test point TP9387 (Labeled TP9387 on the D board) should be grounded through a 1K resistor.
The VDA connector should be also disconnected.