You gave an interesting answer to that other fellow and I think it might help me also. I have the same set and had the ssb board replaced 4 months ago. Now it started having all these wild colored lines shooting through the picture. So how do I locate these boards if I need to replace them? Do you have any numbers for them? The service manual that I have only deals w/ numbers not many names. You can reach me at email@example.com Thanks in advance! sounds like the Y boards.best to replace all 3 at same time main and buffer upper and lower
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It sounds like a common problem of a main power supply that is failing. This is often caused by a cheap (too cheap) capacitor that is falling below a useful value after warming slightly.If no longer under warranty, you may be able to verify this by removing the rear panel, locating an area on the main board or a smaller board with larger-than-average parts on it.Once located, you can use 'freeze spray' (Radio Shack or similar source) to carefully and targeted cool individual parts to see if the set will come back to life.The parts of most interest will be cylindrical in shape, may be either 90 degrees to the board or (if smaller) may be parallel to the circuit board and will carry markings of 'VDC' and 'uFd.'You can accelerate the turn-on and shutdown cycle by using a hair dryer to reheat the suspected area.If you can locate one part that is allowing you to cycle the on-off of the set and want to do the repair yourself, comment back to this message and I'll give you further guidance.
Exact make and model will help.
See www.shopjimmy.com to see if he has the boards for your TV.
Constant blinking means that the power supply main fuse is still good and the 5vdc standby power supply section is still working. It may be detcting short circuits so it stays in safety shutdown mode.
It can be the rest of the power supply is bad, main board, backlghts inverter, etc.
You need more in-depth troubleshooting.
I have not repaired this particular brand. My first concern would say the power supply board is at fault.This the first thing a TV tech will inspect when a TV is dead. This board is usually the smaller of the two boards located inside the TV. If this will help, the signal board is the on with all the RCA jacks and RF connections, the other board of course is the one you will be interested in! Thanks for asking and show a few hands of support!
Here is a solution for the problem. My tv did the same thing. You have 2 blown capacitors that are located at EC17 & EC18 on the top circuit board inside the set. On the back of your set is a black cover with 3 screws. One is in the middle and there are 2 small ones on each side. Remove the screws and the cover will come off. You will now see a metal cover and I think it has 4 screws. Remove them and remove the cover. You should now be able to see the inside of the set. There are 2 circuit boards. The top board has 6 screws I think and and 3 connections that need to be unhooked so that you can remove the board. You can order the capacitors at Digi-Key.com and the part number is 493-2069-ND. Look these up on the website and it will give you a picture of what you are looking for. I sent my board and the capacitors to a guy in Poland Maine at JD Electronics and he soldier them back in for me. I did not know how to do this. I put the board back in my set and it works fine now. Give him a call and see if he can help you. His name is John
(207)998-5687. I hope this helps.........Good Luck....Morton
I own the same set. The most common fix is the Y Sustain board or Z Sustain Board. One controls horizontal and one controls vertical, can't remember which. You can find these parts online for about $150 each. I have used rivervalleyelectronics.net when my set broke. Ultimately, I chose not to fix my tv and bought a new one. Before trashing the TV I removed all the boards and have them available for sale if you are interested. I will sell all the boards, including speakers and cooling fans for $150 plus shipping. Contact me if interested.
If your menus on the TV and other inputs look good then it is probably a resolution setting on your Directv box that needs to be changed. To get HD it needs to be set at 720p or 1080i. Please take a moment to rate my answer. Thanks....
I understand what he's saying about the site not being very intuitive. Issues like that are hard for us to perceive because as we gain familiarity with the site, we lose our fresh eyes.
We actually discourage Experts from posting a short, incomplete solution and then using the comment function to flesh out their answer. We call it placeholding (although I realize that that may not have been your intent). The only way you would have known that we discourage that practice would be if you'd received one of the warnings we send out about it. You also could have seen it if you were one of the very few people who read my blog entry http://blog.fixya.com/2008/09/theres-a-new-sheriff-in-town/. Basically, we need to make that information much more visible on the site. Our head of customer support is coming to California at the end of the month. She and I will be working on making a user-friendly set of guidelines that we will post somewhere easily accessible on the site.
I was lucky to get a tv repair shop that was a Sanyo authorized dealer to talk to me about this issue.
They told me that they had 3 of these tv's in and they said they were all repaired by replacing "3" parts. they are:
the Y SUSTAIN Board - Part # LJ92-01200a
the Y-Upper Buffer Board Part # LJ92-01202a
the Y- Lower Buffer Board Part # LJ92-01203a
I am in the same boat. I amd going to rip the back of my tv off and verify the part numbers. I HAVE NOT REPAIRED MINE YET.. so take this for what it is worth. The Repair shop gave me this info because they were going out of business and did not intend to take any new tv's in for service. The girl who gave me this info read it out of the service repair tickets from 3 Sanyo DP42746 tv's that had the same symptoms as my tv.
It sounds like a bad power supply board. I have one in stock if you need one from a working set that has a broken screen. I'll send all boards for 100 dollars plus freight if you are interested. All boards include Power supply coard, tuner and internal lighting boards. Call me if your interested.