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Sharp LC-42DH77E

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OldLes:
Right, some progress. I have a Sharp remote which will switch it on and off, so it may do everything when I get it running properly.
So, darkened room, and switch on. After normal boot up, the screen illumination showed that three of the CCFLs were not firing up.
So, that is my next step.
Clark97, I will be sending you a PM.
Les.

OldLes:
At the time of the last message, I had established that three of the CCFLs did not seem to be lighting up during the 2 to 3 second (test?) period before the set shut down.
I came across a Samsung 41" set with cracked screen, but its backlighting was OK, so I managed to rescue some tubes. I dismantled the screen assembly, and removed the three previously concluded as faulty tubes. The Samsung tubes were a little shorter, but I soldered on a short extension and made some (sort of tie wrap) connections. Reassembled everything and tried again. This time, it appeared that there were FOUR faulty tubes, none of which were the replacement ones!!!!
I have today tested the originally condemned three tubes, and they all work OK on the new tester.
What next? Hmm, maybe ------
Les

downunder:
Your final statement may not be so strange, Les. I've removed non-operating ccfls from Sharps, then at a later date, installed them in another Sharp to discover that they work. Go figure. I prefer to operate them with the ccfl cavity exposed (no panel) so I can see exactly what's going on. Good luck with it.

Turnip:
Hi folks,
Had one in today with a couple of those edge connectors burned out.

Noticed ChasHyde do them for 3.80 plus but (as there are 18) thought to try hard wire the duff ones first.

Problem was - that on re-fitting the inverter panel, several of the other connectors didn't make contact.

Had that sinking feeling so think to hard wire the lot - Only problem is - those springy clips won't solder, neither will the tube wire ends.

Think to wrap wire under the clips, and do a 18 tube hard wire job.

Recall edge connectors with single sided print always crap - Speccy - Pye tellies of the 70's - Chris.

OldLes:
Turnip, my set is still awaiting further attempts to fix. In fact today we decided that that was on the list for next Monday afternoon, when my pal arrives and we play at "digital stuff" with a low success rate!
We thought we had this fixed, after hard wiring the two burned out ones, but whilst it would attempt a start up, we found DIFFERENT lamps were now not lighting. I don't think we tested them with the new tester, and this is our next move. Good luck, and if you win, PLEASE report back!!
Les.

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