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Search: Posts Made By: dskall
Forum: Troubleshooting TVs and Video Sources 06-22-2022, 06:14 PM
Replies: 15
Views: 258
Posted By dskall
Re: Samsung UE49KS7000SXXH - No standby light

I would check output diodes.
Forum: Troubleshooting TVs and Video Sources 06-22-2022, 09:32 AM
Replies: 9
Views: 176
Posted By dskall
Re: Sony KD-55X8505 not able to start

So what is ps-on, bl-on? Did you heat up processor?
Forum: Troubleshooting TVs and Video Sources 06-19-2022, 03:03 PM
Replies: 9
Views: 184
Posted By dskall
Re: samsung le37c630k1w standby lights but no power on

Looks like you may have a mainboard problem.
Forum: Troubleshooting TVs and Video Sources 06-19-2022, 09:48 AM
Replies: 6
Views: 181
Posted By dskall
Re: Samsung HG46EC890XB LED 5x blinks

Do you get a ps-on signal?
Forum: Troubleshooting TVs and Video Sources 06-19-2022, 09:46 AM
Replies: 23
Views: 237
Posted By dskall
Re: Sanyo DP55441 - No brightness control

https://www.shopjimmy.com/sanyo-431c5469l02-main-board-for-dp55441-p55441-03-loc-u3-eeprom-only/?gclid=Cj0KCQjwkruVBhCHARIsACVIiOwfBipSh46IHIpUXyW1CACd6xQw3GjZMzC4tAX0z8EKW5Jf9S5jwg8aAkWZEALw_wcB
Forum: Troubleshooting TVs and Video Sources 06-18-2022, 12:42 PM
Replies: 19
Views: 417
Posted By dskall
Re: Samsung QE55Q85RAT bootloop

Appears you have a voltage problem. Looks like t-con and mainboard all in one.
Forum: Troubleshooting TVs and Video Sources 06-18-2022, 11:23 AM
Replies: 6
Views: 181
Posted By dskall
Re: Samsung HG46EC890XB LED 5x blinks

Need pictures of your boards and connector legend from power to mainboard.
Forum: Troubleshooting TVs and Video Sources 06-18-2022, 11:20 AM
Replies: 24
Views: 546
Posted By dskall
Re: Grundig 48 VLX 8582 BP, Possible T-CON issue?

VCC_1.2v being low could cause a problem. Maybe just bad regulator.
Forum: Troubleshooting TVs and Video Sources 06-17-2022, 07:10 PM
Replies: 19
Views: 417
Posted By dskall
Re: Samsung QE55Q85RAT bootloop

I believe unplugging power cable to main board should turn on backlights.
Forum: Troubleshooting TVs and Video Sources 06-17-2022, 07:01 PM
Replies: 24
Views: 546
Posted By dskall
Re: Grundig 48 VLX 8582 BP, Possible T-CON issue?

I believe AVDD should be about 15v. Those ceramic caps are the usual suspects for shorts.
Forum: Troubleshooting TVs and Video Sources 06-17-2022, 11:05 AM
Replies: 24
Views: 546
Posted By dskall
Re: Grundig 48 VLX 8582 BP, Possible T-CON issue?

Yes, or short on one of the power rails. I would check pads with missing voltages for shorts.
Forum: Troubleshooting TVs and Video Sources 06-17-2022, 09:34 AM
Replies: 24
Views: 546
Posted By dskall
Re: Grundig 48 VLX 8582 BP, Possible T-CON issue?

So you are missing voltages. Voff and Von are VGL and VGH
Forum: Troubleshooting TVs and Video Sources 06-17-2022, 09:29 AM
Replies: 9
Views: 322
Posted By dskall
Re: Samsung TV 65 inch No picture, but sound

I would heat up main processor and see if there's a change.
Forum: Troubleshooting TVs and Video Sources 06-16-2022, 12:52 PM
Replies: 9
Views: 322
Posted By dskall
Re: Samsung TV 65 inch No picture, but sound

Remove the stand and the metal plate.
Forum: Troubleshooting TVs and Video Sources 06-14-2022, 07:29 PM
Replies: 22
Views: 502
Posted By dskall
Re: LG 43UM6910PUA backlight on, but no picture

Third picture at top. What picture would that be on bottom pictures?
Forum: Troubleshooting TVs and Video Sources 06-14-2022, 04:29 PM
Replies: 22
Views: 502
Posted By dskall
Re: LG 43UM6910PUA backlight on, but no picture

I don't see the area on your blurred picture on bottom set of pictures.
Forum: Troubleshooting TVs and Video Sources 06-14-2022, 03:19 PM
Replies: 22
Views: 502
Posted By dskall
Re: LG 43UM6910PUA backlight on, but no picture

One IC produces most of these voltages. Have to think one of the outputs is being loaded down. VBH, VGL, AVDD, HAVDD could have a short.
Would need better pictures to find test points.
Forum: Troubleshooting TVs and Video Sources 06-14-2022, 01:38 PM
Replies: 22
Views: 502
Posted By dskall
Re: LG 43UM6910PUA backlight on, but no picture

Is that with ribbons hooked up?
VGH, VGL, VCOM voltage?
Forum: Troubleshooting TVs and Video Sources 06-14-2022, 12:06 PM
Replies: 22
Views: 502
Posted By dskall
Re: LG 43UM6910PUA backlight on, but no picture

Do you lose any other voltages?
Forum: Troubleshooting TVs and Video Sources 06-14-2022, 10:47 AM
Replies: 22
Views: 502
Posted By dskall
Re: LG 43UM6910PUA backlight on, but no picture

Check caps on right side for shorts.
Forum: Troubleshooting TVs and Video Sources 06-13-2022, 09:10 AM
Replies: 15
Views: 344
Posted By dskall
Re: LG 42LA6130 did not turn on

You may have bad connections.
https://www.youtube.com/watch?v=3eTIq_f5a0s&t=183s&ab_channel=MichaelDranfield
Forum: Troubleshooting TVs and Video Sources 06-12-2022, 07:16 PM
Replies: 15
Views: 344
Posted By dskall
Re: LG 42LA6130 did not turn on

Need a good picture of your power supply. Use the "go advanced" option.
Forum: Troubleshooting TVs and Video Sources 06-12-2022, 09:57 AM
Replies: 17
Views: 601
Posted By dskall
Re: Samsung BN44-0851A powersupply problem

15amps seems like a lot. And fuses usually blow for a reason.
Forum: Troubleshooting TVs and Video Sources 06-09-2022, 04:15 PM
Replies: 8
Views: 213
Posted By dskall
Re: Bad Video on a cheap LCD TV

Does picture change with voltage. Do you get good picture or lines?
Forum: Troubleshooting TVs and Video Sources 06-09-2022, 03:40 PM
Replies: 8
Views: 213
Posted By dskall
Re: Bad Video on a cheap LCD TV

Check voltage on L502 while tapping and make sure voltage is steady.
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