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Forum: Troubleshooting TVs and Video Sources 07-07-2019, 11:53 AM
Replies: 2
Views: 87
Posted By tom66
Re: Vestel Tool V1.1 DUMP NAND / SPI HELP..

You can try to alter the boot config file. The boot config file can be saved to a USB stick. It uses standard UBoot commands, open source software. Easy enough to write a config file that dumps...
Forum: Troubleshooting TVs and Video Sources 05-09-2019, 03:43 PM
Replies: 5
Views: 243
Posted By tom66
Re: Samsung UN50MU6300 burnt tab bond

Nothing you can do, as I'm fairly sure that's a column driver so removing it will mean you get a big black bar down the panel.
Forum: Troubleshooting TVs and Video Sources 05-09-2019, 03:01 PM
Replies: 1
Views: 71
Posted By tom66
Re: Bush DLED40127FHDCNTD - Software dump

You can look into editing the boot configuration file on an update USB.

These vestel sets use u-boot which is open source software. It is what loads the flash memory correctly.

It is possible...
Forum: Troubleshooting TVs and Video Sources 05-09-2019, 12:45 PM
Replies: 15
Views: 1,562
Posted By tom66
Re: samsung ht z310 - FAN_CHK error

I think this fan circuit has to be one of the most complicated I have seen, a temperature sensor control circuit would have been so much easier but instead it is based off volume level. As a result...
Forum: Troubleshooting TVs and Video Sources 05-09-2019, 11:58 AM
Replies: 5
Views: 202
Posted By tom66
Re: Sony OLED TV 4 red blinking lights

I suspect you will find that the thin lines are causing something to overheat which means the T-con will shut down.

I guess you could see what is overheating (a thermal camera helps, but if not,...
Forum: Troubleshooting TVs and Video Sources 05-06-2019, 02:58 AM
Replies: 26
Views: 4,317
Posted By tom66
Re: LG 42PQ6000 plasma

I would advise checking Vs, Va, -Vy, Vsc and Vzbias voltages are z all correct, especially Vs when a bright image is displayed. We have seen PSUs struggle to regulate Vs under high load.

Also...
Forum: Troubleshooting TVs and Video Sources 04-30-2019, 03:44 AM
Replies: 5
Views: 337
Posted By tom66
Re: Service manuals - going down

Bump so more can see this.

I think Topcat offered a while ago but I'm not sure on what the status of that is. I'll have to ask again.
Forum: Troubleshooting TVs and Video Sources 04-28-2019, 02:41 PM
Replies: 5
Views: 337
Posted By tom66
Service manuals - going down

Hi all

As you all know I am not as active on Badcaps.net forum as I would otherwise like to be, for a variety of reasons, but mostly related to workload.

The toms-service-manuals.com domain...
Forum: Troubleshooting TVs and Video Sources 01-29-2019, 11:53 AM
Replies: 60
Views: 1,444
Posted By tom66
Re: LG 55EC930V OLED - 3 Second Power No Display

Could you take a picture of the bottom side of the board? Curious about something.
Forum: Troubleshooting TVs and Video Sources 01-09-2019, 03:00 PM
Replies: 39
Views: 575
Posted By tom66
Re: PN43D490A1DXZA power supply broke?

VS ON not VS!!! very bad if you jump to VS will destroy your power board.

VS ON needs to go to STBY 5V and PS ON to GND needs to be jumpered as well
Both control board and main board should be...
Forum: Troubleshooting TVs and Video Sources 01-09-2019, 01:09 AM
Replies: 39
Views: 575
Posted By tom66
Re: PN43D490A1DXZA power supply broke?

Unlikely to be power board if Vs is present, even if dropping. Control board will shut down power board if there is a fault.

To test properly you would need to disconnect control board and main...
Forum: Troubleshooting TVs and Video Sources 01-06-2019, 02:57 AM
Replies: 57
Views: 2,495
Posted By tom66
Re: Samsung PN60F8500AFXZA, can't determine X or Y failure

Are you using 120V light bulbs? Two in series?
Forum: Troubleshooting TVs and Video Sources 01-02-2019, 08:50 AM
Replies: 12
Views: 369
Posted By tom66
Re: Late model "40 RCA LED LCD, upper 1/3 screen distortion, no T-Con board

100% bad panel
It's a Samsung panel and this is a common failure.
Forum: Troubleshooting TVs and Video Sources 01-02-2019, 05:41 AM
Replies: 57
Views: 2,495
Posted By tom66
Re: Samsung PN60F8500AFXZA, can't determine X or Y failure

I've encountered it on a few sets but I think it's not an issue on these newer Samsung sets. Reason being that the Y-main and X-main actually go to very low load levels under dark picture levels so...
Forum: General Computer Discussion 12-29-2018, 03:16 AM
Replies: 28
Views: 747
Posted By tom66
Re: "Solid State" media failures

Yes, that would be how it works.

You having 100 TB would certainly make that harder! I have at most 8 TB of data, about 2 TB of which is backed up (the rest is easily recoverable stuff, or junk...
Forum: General Computer Discussion 12-28-2018, 03:06 PM
Replies: 28
Views: 747
Posted By tom66
Re: "Solid State" media failures

Well, I have 80Mbit downstream, but I don't even have to use that.

The company will send you a 4TB HDD for ~$200 but if you send that back to them, the service is free of charge - you effectively...
Forum: General Computer Discussion 12-28-2018, 11:41 AM
Replies: 28
Views: 747
Posted By tom66
Re: "Solid State" media failures

So my solution was to back it all up using my 20Mbit (upstream) connection which took a while! About two months all in with it running in the background. But it did work.

I don't keep the stuff...
Forum: General Computer Discussion 12-28-2018, 11:36 AM
Replies: 28
Views: 747
Posted By tom66
Re: "Solid State" media failures

No... some areas will wear out sooner, but the failures will be random in nature. So it is reasonably likely that several sectors will fail in a small span of time if the drive is used in a typical...
Forum: General Computer Discussion 12-27-2018, 03:54 PM
Replies: 28
Views: 747
Posted By tom66
Re: "Solid State" media failures

*

Another reason not to have critical data on any single medium *at all*. Backups, folks! Backups! Three backups, two different locations and at least one different type of medium. But if...
Forum: General Computer Discussion 12-27-2018, 02:22 PM
Replies: 28
Views: 747
Posted By tom66
Re: "Solid State" media failures

In my experience, it's typically catastrophic because the failures begin at similar times across the drive.

Once a sector fails on an SSD, the drive will spend a long time attempting to recover...
Forum: General Computer Discussion 12-27-2018, 11:22 AM
Replies: 28
Views: 747
Posted By tom66
Re: "Solid State" media failures

SSDs do fail, I've had friends with Kingston drives go bad. None myself, had the odd SD card and USB drive fail though. Personally I do not trust any SSD not from a tier-one manufacturer (Samsung,...
Forum: Troubleshooting TVs and Video Sources 12-27-2018, 11:04 AM
Replies: 23
Views: 725
Posted By tom66
Forum: Troubleshooting TVs and Video Sources 12-20-2018, 11:43 AM
Replies: 12
Views: 3,991
Posted By tom66
Re: Samsung PS42A457P1D stuck in standby

Interesting that the 450V cap goes.

My iiyama LCD monitor was killed when the 450V cap failed on the primary. Popped the primary-side flyback transistor.

Replaced transistor, resistor and cap...
Forum: Troubleshooting TVs and Video Sources 12-18-2018, 08:15 AM
Replies: 23
Views: 725
Posted By tom66
Re: LG 50PN4500 - fluctuating Vcc/18V supply on Y-sustain board causing fault

I have edited the thread title, hope it's more appropriate
Sorry I don't have any thoughts right now.
Forum: Troubleshooting TVs and Video Sources 12-18-2018, 06:47 AM
Replies: 4
Views: 176
Posted By tom66
Re: Tx-p42x50b Green/Red dots sparkles static!

My thought on the brightness is many plasma panels use dithering to handle low level intensity control. The user interface brightness control can sometimes cause this to appear if the brightness...
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