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Search: Posts Made By: Louis82
Forum: Troubleshooting TVs and Video Sources 12-22-2017, 02:06 PM
Replies: 6
Views: 143
Posted By Louis82
Re: BN44-00780A Blown Fuse - Troubleshooting

Ok After 3hrs, It's Fixed.

Issue was the IC loc ICP801. I removed a new one from a board I had, swapped it and it worked. Filter cap measures 450v same with LED driver out.
Will provide update...
Forum: Troubleshooting TVs and Video Sources 12-22-2017, 10:50 AM
Replies: 6
Views: 143
Posted By Louis82
Re: BN44-00780A Blown Fuse - Troubleshooting

Ok Budm.
I made a mistake of forgetting to put all blue caps back. If you see my picture I was missing CP815. However, I put it back and still same problem. Only 170V on Filter cap and no relay...
Forum: Troubleshooting TVs and Video Sources 12-22-2017, 10:11 AM
Replies: 6
Views: 143
Posted By Louis82
Forum: Troubleshooting TVs and Video Sources 12-22-2017, 10:06 AM
Replies: 6
Views: 143
Posted By Louis82
Re: BN44-00780A Blown Fuse - Troubleshooting

Hi Budm - No click on relay. How do I check for current leakage ?
BTW, I also replaced QP802. It was shorted when removed from board. I forgot to say that on my first post. CP814 is in front of...
Forum: Troubleshooting TVs and Video Sources 12-22-2017, 10:02 AM
Replies: 76
Views: 1,292
Posted By Louis82
Re: Samsung UN60EH6000 Tries to come on, but stops

All three boards measured 1V. One of this board seems to be doing fine. Tv is still playing. Going for two days of testing now.
Forum: Troubleshooting TVs and Video Sources 12-22-2017, 07:15 AM
Replies: 76
Views: 1,292
Posted By Louis82
Forum: Troubleshooting TVs and Video Sources 12-21-2017, 11:36 PM
Replies: 6
Views: 143
Posted By Louis82
BN44-00780A Blown Fuse - Troubleshooting

Hello there.

I have this curved samsung tv with power board BN44-00780A that has a blown fuse.

I found a ceramic cap burned (CP814). Replaced them and now I get 3.3V Standby, 176V on filter...
Forum: Troubleshooting TVs and Video Sources 12-21-2017, 06:31 PM
Replies: 76
Views: 1,292
Posted By Louis82
Re: Samsung UN60EH6000 Tries to come on, but stops

Thanks for the input guys.
So, today I went ahead and replaced the same IC on two more 00628C boards that I had defective with same issue, no picture only backlight.
One of them is giving me the...
Forum: Troubleshooting TVs and Video Sources 12-20-2017, 11:57 PM
Replies: 76
Views: 1,292
Posted By Louis82
Re: Samsung UN60EH6000 Tries to come on, but stops

Nevermind budm. Just watched the video again. I will try that next otherwise Im gonna have to buy a new t-con -- great!
Forum: Troubleshooting TVs and Video Sources 12-20-2017, 11:53 PM
Replies: 76
Views: 1,292
Posted By Louis82
Re: Samsung UN60EH6000 Tries to come on, but stops

you mean a thermal pad on the IC ISL9860 i just replaced?
Forum: Troubleshooting TVs and Video Sources 12-20-2017, 11:38 PM
Replies: 76
Views: 1,292
Posted By Louis82
Re: Samsung UN60EH6000 Tries to come on, but stops

Hi budm - Yes it plays fine for hours.
Forum: Troubleshooting TVs and Video Sources 12-20-2017, 11:36 PM
Replies: 76
Views: 1,292
Posted By Louis82
Re: Samsung UN60EH6000 Tries to come on, but stops

Also, I'm using the thermal or cooling pads on all big IC's before putting the metal plate back on. When I leave the back cover off, tv played fine for hours. Something is getting overheated.
Have...
Forum: Troubleshooting TVs and Video Sources 12-20-2017, 11:32 PM
Replies: 76
Views: 1,292
Posted By Louis82
Re: Samsung UN60EH6000 Tries to come on, but stops

Hey guys,
I have the same issue BUT, I replaced the ISL9860 and picture came back. Tv now plays fine for 15 minutes then picture is gone again. I have to wait like 5 min for picture to come back on...
Forum: Troubleshooting TVs and Video Sources 10-24-2017, 01:27 PM
Replies: 87
Views: 7,254
Posted By Louis82
Re: Samsung LN46D630M3F, TV powers on, sound works but no backlight

Resoldering bad connections has worked only for a few days. Problem is back again. Any update in regards the solution for this.

Thanks
Forum: Troubleshooting TVs and Video Sources 09-04-2017, 05:38 PM
Replies: 11
Views: 8,295
Posted By Louis82
Re: Sony KDL-40EX400 shutsdown

Hello there,

I had this problem back in June 2017, Tv tried to turn on for 3 times showing the sony logo for a sec and cut off, then the 6 blinks. I replaced the main board (purchased from SJ)...
Forum: Troubleshooting TVs and Video Sources 08-13-2017, 01:06 PM
Replies: 7
Views: 314
Posted By Louis82
Re: Repair Power Board KB109WJQZ for Sharp TV LC-60C6500

Thanks guys. Installed circuit board on Tv and is working properly. Thank you for your time.
Forum: Troubleshooting TVs and Video Sources 08-13-2017, 12:40 PM
Replies: 7
Views: 314
Posted By Louis82
Re: Repair Power Board KB109WJQZ for Sharp TV LC-60C6500

Ok. There is definitely an improvement. 5V present on Pin 15 which is BU5V but still nothing on Pin 24 STB. Any thoughts?
Forum: Troubleshooting TVs and Video Sources 08-13-2017, 12:25 PM
Replies: 7
Views: 314
Posted By Louis82
Re: Repair Power Board KB109WJQZ for Sharp TV LC-60C6500

Thanks guys. I did notice R7900. I been looking for IC7903. I will report back soon if I have it.
Forum: Troubleshooting TVs and Video Sources 08-13-2017, 11:51 AM
Replies: 7
Views: 314
Posted By Louis82
Repair Power Board KB109WJQZ for Sharp TV LC-60C6500

Hello there,

Can someone help to troubleshoot this power board KB109WJQZ for Sharp TV LC-60C6500.

No STB voltage, DC filter caps shows 165V. I found a defective diode location D7950 part...
Forum: Troubleshooting TVs and Video Sources 07-20-2017, 07:43 AM
Replies: 11
Views: 396
Posted By Louis82
Re: TCL 40FS3800 Stuck in Screen Test Pattern

Here are two pics of the immediate components that are located right where the LVDS connector goes on the screen side. Maybe you guys can see something.
Forum: Troubleshooting TVs and Video Sources 07-20-2017, 07:36 AM
Replies: 11
Views: 396
Posted By Louis82
Re: TCL 40FS3800 Stuck in Screen Test Pattern

I believe that when I reversed the cable, I probably didn't put the cable correctly and the pins did not seat correctly and caused a short that allowed the tv to go into screen test pattern. How do I...
Forum: Troubleshooting TVs and Video Sources 07-20-2017, 07:31 AM
Replies: 11
Views: 396
Posted By Louis82
Re: TCL 40FS3800 Stuck in Screen Test Pattern

I used al alligator from tape to screen (metal) still the same. Pic is attached.
I'm starting to think that I damaged the screen.
Forum: Troubleshooting TVs and Video Sources 07-20-2017, 12:15 AM
Replies: 11
Views: 396
Posted By Louis82
Re: TCL 40FS3800 Stuck in Screen Test Pattern

You know, I was wondering the same. Can I attach a wire from the circuit board to the screen metal shield? FYI Power cord has only 2 legs.
Forum: Troubleshooting TVs and Video Sources 07-19-2017, 09:49 PM
Replies: 11
Views: 396
Posted By Louis82
Re: TCL 40FS3800 Stuck in Screen Test Pattern

I replaced the cable today. Same issue.
Forum: Troubleshooting TVs and Video Sources 07-19-2017, 03:17 PM
Replies: 11
Views: 396
Posted By Louis82
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