Re: Mitsubishi LT-55154 Blinking Green Light?

As mentioned in my tutorial, distortion of any/all of the rca connectors can be expected. This is probably unavoidable related to the material specifics within this particular Mitsubishi design, that being the plastic’s melting point is probably near the 385 degrees. I drilled the plastic rca holes to 1/8” and the fit was very tight. The rca pin specification is 3.7mm, so the closest SAE size is 9/64”. 5/32” is over 3.7mm and would risk causing a poor connection.

Re: Mitsubishi LT-55154 Blinking Green Light?

Yeah, baking your HDTV back to life has to be one of the most gratifying experiences of all time!

Re: Mitsubishi LT-55154 Blinking Green Light?

Heads-up... My fix worked for about 2 months and I’m confident it can still be repaired, but I haven’t taken time to do it. Little by little it would take longer for the TV to come on, from the time of pushing the power button. I assume this is due to weak capacitors so my plan is to replace them, especially since I already bought them.

Nevertheless, I will be using this oven reflow method on future electronic fixes when it seems it would be appropriate. Wish I had known this trick when I was repairing 1st Gen Xboxes.

Re: Mitsubishi LT-55154 Blinking Green Light?

UPDATE:

When I went to connect analog audio cables I found that the 385 degrees had caused the RCA jacks to expand, thereby causing the hole size to shrink. Quick fix was to drill the RCA holes back out to 1/8" while applying suction from a vacuum hose.

Re: Mitsubishi LT-55154 Blinking Green Light?

Just want to jump in an say thanks for this really useful thread. Yesterday I gambled $50 on a LT-46164 that had the GBLOD. I went ahead and ordered new CAPs on Amazon for delivery, today, but when I opened it up last night the CAPs looked fine.

After reading through this thread I figured the reflow was my best bet, but didn't really want to use the heat gun. A little more research found a tried method for recovering laptop mainboards with failed GPUs, and it did the trick for this Mitsubishi. Simple as this:
...

Re: New Members - please post your introductions here

Hello All,

I'm signing on here because I found really useful info for fixing a 46" Mitsubishi LED TV, though I combined it with info from another site that made the repair a no-brainer. Planning to reply to that post when I'm done introducving myself.

I'm in my late 50's and have tons of practical experience across several technical platforms. My first vocation was Machine Tool Technology, then went on to Electromechanical Technology and Alternative Energy Systems. Took up building PCs in the...