Samsung HL61A750A1FXZA Not Powering On and Power Cycling
I have a Samsung HL61A750A1FXZA Not Powering On and Power Cycling with a Green LED flashing on the “LED” LED until finally after the last power cycle a “Standby/Temp” RED LED and the other two “Timer” and “LED” are GREEN LED’s as observed at about 1:47 into the below video.
I found the Blue LED was bad and replaced that with the Blue LED from another Samsung (HLT6187SAX/XAA) with white dots and dots fading to white throughout the display screen indicating a bad DLP sensor. Here is a reference for those that may need to purchase a Blue LED: https://www.shopjimmy.com/samsung-bp07-0...
Here is a reference regarding changing the LED’s: https://www.youtube.com/watch?v=xHE1knzJ...
Replacing the Blue LED and thoroughly cleaning didn’t affect performance.
Originally, I was going to just replace the DLP chip in the HLT6187SAX/XAA with the DLP chip in the HL61A750A1FXZA. Figured I’d do module or easy component swaps that might save time to see if any difference in performance and to eliminate the power supply as the cause in the HL61A750A1FXZA since looked worse with bulging leaking capacitors. Even with the bulging leaking capacitors… both boards appear to function the same.
Figured I’d ask also to see if I can repair the HL61A750A1FXZA module(s) issue and save having to swap DLP chips.
Finally, to get back to the question:
Why is the Samsung HL61A750A1FXZA Not Powering On and Power Cycling with a Green LED flashing on the Standby LED until finally after the last power cycle a RED LED and the other two are GREEN LED’s as observed in the video I made?
FYI…, I don’t think I have a remote control for either of these two TV’s so I am not sure how to enter the service mode.
Edit: 10/1/2019 Afternoon:
I figured I’d check to see how the HLT6187SAX/XAA modules were still performing with the bad Blue LED thinking I’d have white dots and no Blue… well… that didn’t help I’m thinking and may have made the situation worse. Then I swapped the good Blue LED back into the HLT6187SAX/XAA engine optical train. Now when using that systems modules I am not getting the white dots relating to the DLP chip issue… I’m getting that same issue as this question is regarding with the HL61A750A1FXZA other than I have a Red “Standby” LED when I plug in the wall outlet cable, I have to power on the TV and then the same issues occur with the Green “LED” blinking LED. My guess is something with the LED or main power supply board.
Here is an image of the two LED power supply board. I don’t notice anything suspect on the main power supply boards upon visual inspection… though will test the capacitors next.
HLT6187SAX/XAA LED Power Supply Board
HL61A750A1FXZA LED Power Supply Board:
Is this a good question?