Sharp LC-80LE632U 1-1 Code

[Texas Blues]

Hi guys, visited this site several times in the past and found some very helpful info on various repairs. This time I thought I would post a question and see if any of you could help. I read a lot of posts about this model (thanks Freakafter8 for your post). I can bypass the 1-1 lamp error by holding down the Vol + and Ch - while plugging it in (and one other combo, I'll have to double check what it was). After doing this, the leds will come on and stay on and the error code is not displayed. You can then turn the unit on off with the power button and the leds will light every time, as long as you don't unplug the ac power. If you do pull the plug you can bypass the error again by using the above button combo. Now here is my main question. The unit does come on like I say but there is no video or sound (snow ect.). I cant seen to get into the service mode as described in several posts and in the service manual to reset the lamp count. I can never get to the point where the unit will show the K on the screen and pressing the VOL- and Ch- doesn't get me to the service menu. Is there a way to get to the service menu without unplugging the unit? If I do what the manual says, (vol- input keys while plugging in the ac power) the 1-1 code comes back. Shld I be getting a video signal to the screen even if I bypassed the 1-1 code, or does that feature become disabled as well? Sorry for the long winded post. Thanks, TB

[freakaftr8]

Re: Sharp LC-80LE632U 1-1 Code

Well I just came across your post. Mine has been running steadily for the last two years with no problems. Of course if I unplug it I've got to do the combo to get it to come up again. A couple questions come to mind. did you pick up this TV broken possibly? Or is it your TV and it failed on you? The only reason I asked is that somebody else if you cook it picked up broken might have shorted out to tcon board playing around with it trying to get it to work.

The one one error bypass should not cause a no picture condition. You should have a perfect picture even with bypassing using the combo. Have you checked fuses on to tcon board?

Also video and sound are processed through the main board. Then the video gets carried via LVDS cable to the tcon board which processes the image for the LCD to display. You say you do not have sound. Have you tried connecting an HDMI port and cycle through the inputs and allow the TV some time to hear something? Because if not I would say you might have a main board issue

Can you post clear pictures of the mainboard and the power supply and the t-con bored so we can check the pinouts to make sure that you're getting proper voltage is to the boards from the power supply

[Texas Blues]

Re: Sharp LC-80LE632U 1-1 Code

Thanks for responding freak. The background of the unit is this...
One of our clients owned this. they called us because the unit was in an error condition. The error code that was flashing was the 2-3 code, the manual indicated that it was a power supply error 2 (*2) D+3.3V error. Being that this thing was on the wall at the clients site, we ordered a power supply board ahead of time and took the board onsite to swap it out to see if it corrected the error. It did not. The client has since bought a replacement unit and the old one was brought here to the shop for further repair. It has been a couple of months and I'm now getting back on it, so my memory of the exact process might be weak. All three boards have been swapped (and I still have them marked as the originals). I put the original PS back in, then we next swapped out the mainboard. It produced a different error at that time. I am more than willing to back track and tell you what the error codes was. That led us to swap out the tconn board, which is where we are at right now. Unit currently has, the original PS, the replacement main board and replacement tconn board in it. At least now, the only code being displayed is the 1-1 code which I can bypass. So now that I am back on it, I am open to suggestions. Here in alittle while I can put the original tconn board back in and report what the secondary code was with the replacement mainboard installed. Thanks again for responding. Mark

[johnboy1313]

Re: Sharp LC-80LE632U 1-1 Code

If the mainboard was pulled from a set that had an error code flashing, that code would have been stored in that main board and would show itself in the set you are working on until it was reset.

[Texas Blues]

Re: Sharp LC-80LE632U 1-1 Code

To further answer you question freak, I did have a bluray player connected to the hdmi ports. But I don't have a video signal to even show the onboard menu, or to show what input port is being used.

[freakaftr8]

Re: Sharp LC-80LE632U 1-1 Code

Ok. Like johnboy said the Sharps like the focus on storing erroneous codes in the main board from the previous set. You may be getting some false mainboard codes however you should be getting video no matter what. The first thing I would try if you replace it with the original t-con bored and find out that there's still no video would be to try to disconnect one ribbon cable from the panel at a time and see if you have half the screen come up. There have been instances where a 2-3 flashing code for the 13 volt turned out to be a panel error. If this is the case and you get half of a screen on one side of course the other half going to be white we'll go from there. If this does not produce video you could first try it with your replaced tcon board. Try the one ribbon cable at a time step. I don't recall if there's two or four ribbon cables going from the tcon board to the panel if there is leave one of each side at a time disconnected on the outer ribbon cables

[budwich]

Re: Sharp LC-80LE632U 1-1 Code

I don't think you need a source to test for video... ie picture on the screen. Just select menu on the remote or side panel. IF the screen has any "guts", it will display something, at least textual. As Freakaftr8 indicates, pull one of the 2 "outside" tcon to panel cables (either right or left). You should see something on the screen, especially if you pull the left as the menu items are mostly on the right side.

Further, during the test, do the "perimeter lights" come on initially, then go out and then you get the flashing "v"? Hopefully that changes with the cable pull.

[Texas Blues]

Re: Sharp LC-80LE632U 1-1 Code

Ok guys. I got back on it. I put the original tconn board back in it. So now the original ps and tconn board is in it, and has the replacement mainboard in it. I now get video and sound as long as I push VOL+ CH- while plugging it in to bypass the 1-1 code. So I guess I'm where you are freak. Now I'm trying to get to the service mode, but following the service manuals procedure (Vol- Input while plugging it in) wont get me to the K screen, it will only go to the 1-1 code. Is this 1-1 condition going to prevent me from getting into the service menu to reset the lamp count?

[freakaftr8]

Re: Sharp LC-80LE632U 1-1 Code

Good deal so was a main board fault. Okay so hold down vol- and input as you plug it in your still holding these buttons down and release them as soon as you see the LED backlighting come on no sooner than then and no later than that but as soon as the back lighting comes on release the input and Vol- buttons that should take you to the service

[Texas Blues]

Re: Sharp LC-80LE632U 1-1 Code

Thanks freak, I will give that a try. TB

[Texas Blues]

Re: Sharp LC-80LE632U 1-1 Code

Ok freak, I understand letting go as soon as the backlights come on, no sooner, no later, but after several attempts at doing just that, it still goes to the 1-1 code. Are you saying that yours will get to the K screen when you do that? I'm not sure how much faster I can let go of the buttons lol. Thanks TB

[Texas Blues]

Re: Sharp LC-80LE632U 1-1 Code

Oh, and also, in the service manual this is the first line in the instructions for entering service mode.....
1) Before entering the adjustment process mode, the AV position RESET in the video adjustment menu.

Probably bad translation, but does that mean to go into the main menu settings (not service mode) and then to the video settings and do a factory reset of the video settings? I did that, just in case that's what that line means.

[freakaftr8]

Re: Sharp LC-80LE632U 1-1 Code

Ok try holding them til right before you see the backlighting come on.

It's tricky
I'll try with mine tonight and let you know what I find.

[Texas Blues]

Re: Sharp LC-80LE632U 1-1 Code

Ok thanks

[freakaftr8]

Re: Sharp LC-80LE632U 1-1 Code

Oh, and also, in the service manual this is the first line in the instructions for entering service mode.....
1) Before entering the adjustment process mode, the AV position RESET in the video adjustment menu.

Probably bad translation, but does that mean to go into the main menu settings (not service mode) and then to the video settings and do a factory reset of the video settings? I did that, just in case that's what that line means.

Yeah that's probably what it means but it's not necessary I've never had to do that before. I'm able to enter my service menu without having to reset the video settings

[sabinaboy2003]

Re: Sharp LC-80LE632U 1-1 Code

mine was doing the same thing. I ordered a power supply because i thought the led driver was out of it and that didnt work. I finally found where someone on here said to hold the channel down button and the volume up button while pluging it in and it works. if you unplug the tv you have to do the code all over.

[freakaftr8]

Re: Sharp LC-80LE632U 1-1 Code

That was me. I actually went as far as removing the massive 80 inch lcd panel and all LEDs fire up. It's obviously a false code. My tv still has the 1-1 flash. It's always plugged in thou. I have cleared out the backlight error in my service menu and it just comes right back.

[Ltank]

Re: Sharp LC-80LE632U 1-1 Code

I had a 70" with a 1-1 blink. The P.S. 12vdc was bad to the Tcon.
Replaced P.S. set worked fine.