User Profile

alltvrepairs started a topic JVC lt-32vah3000 no sign of life apart from Digital Audio Laser port is lit RED

in Troubleshooting TVs and Video Sources

01-31-2025, 09:58 AM
JVC lt-32vah3000 no sign of life apart from Digital Audio Laser port is lit RED

HI,

Have this set that does not respond to remote functions. It is either bricked or main faulty as the power supply is on and mainboard supplies seem present. I have noticed the red light from the digital audio out.

This is an android on a vestel main board 17MB171

[ATTACH=JSON]{"alt":"Click image for larger version Name:\timage.png Views:\t0 Size:\t223.6 KB ID:\t3561210","data-align":"none","data-attachmentid":"3561210","data-size":"full","title":"image.png"}[/ATTACH]...

See more | Go to post
alltvrepairs replied to Old Techwood 32722HD Osd pixels on screen

in Troubleshooting TVs and Video Sources

08-07-2024, 01:46 PM
Have tried that already but it seems that heat doesn't change the symptom. After few hrs the set is very hot inside due to its old design....

See more | Go to post
Leave a comment:
alltvrepairs started a topic Old Techwood 32722HD Osd pixels on screen

in Troubleshooting TVs and Video Sources

08-07-2024, 08:39 AM
Old Techwood 32722HD Osd pixels on screen

Hi,
an old friend of mine wants me to repair this old (not worth it) model. Found standby only. Changed couple of swallen caps 1000uf 16v, 25v in power supply and set is on.
however noticed many digital pixel noise probably originating from OSD. When osd gies off they stay.
Am thinking a couple of caps near cpu.might be the culprit. But cannot afford much time on it anymore as this is almost a free repair.

Any ideas welcome. Pics attached.

5 Photos

See more | Go to post
alltvrepairs started a topic UE55NU7170 Power Supply Circuit required BN4400932B

in Troubleshooting TVs and Video Sources

05-06-2024, 03:58 AM
UE55NU7170 Power Supply Circuit required BN4400932B

Hi,

Anyone has a circuit diagram for this Samsung Power supply pls?
QP801CS shorted. Blu Cap is not cracked.

[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"image.png","data-attachmentid":3265690}[/ATTACH]Hi,

Anyone has a circuit diagram for this Samsung Power supply pls?
QP801CS shorted. Blu Cap is not cracked.

[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"image...

See more | Go to post
alltvrepairs replied to Samsung HG49EE690 Hospitality TV reboot issue Mainboard BN94-11086A

in Troubleshooting TVs and Video Sources

03-25-2024, 05:51 AM
I have tried heating and freezing CPU / RAM / DC - DC convertors and all around board including HDMI chips. But could not conclude if the heat / freeze is changing the duration So changing the CPU is a wild guess and I think is not worth the time and cost and risk after all.

See more | Go to post
Leave a comment:
alltvrepairs replied to Samsung HG49EE690 Hospitality TV reboot issue Mainboard BN94-11086A

in Troubleshooting TVs and Video Sources

03-21-2024, 08:10 AM
Hi again,

CPU is SEMS31 BGA

Am not 100% if CPU failure as tried to heat it up and didn't conclude that with extra heat trips quicker.

I would need a GPU and a stencil. Any recommendations for a good quality but not too expensive solder and cleaner?

[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"image.png","data-attachmentid":3239751}[/ATTACH]

Thanks!Hi again,

CPU is SEMS31 BGA

Am not 100% if CPU failure as...

See more | Go to post
Leave a comment:
alltvrepairs replied to Graetz / Akai CV338H-T50 bricked after firmware upgrade

in Troubleshooting TVs and Video Sources

03-16-2024, 09:49 AM
BOTH TV FIXED at last. Special tks to Lotas for sending me a good file to start with and all others contributing here.

Apparently I have been quite unlucky as the first 3 files downloaded contained errors and I had the impression I have bricked both sets.

The Graetz firmware worked immediattely.

Applied same firmware on Smarttech Tv, Tv revived but incorrect colours/bit rate due to different screen.

Have downloaded 5 more firmwares and finally found 1 that worked and had good picture, however required a Samsung Remote. Managed to Export the RC...

See more | Go to post
Leave a comment:
alltvrepairs replied to Graetz / Akai CV338H-T50 bricked after firmware upgrade

in Troubleshooting TVs and Video Sources

03-16-2024, 05:39 AM
Good news! Tks LOTAS.
With this firmware I have managed to revive the Graetz TV and seems all working fine.

[URL=filedata/fetch?id=3236314&d=1710588680][ATTACH=JSON]{"alt":"Click image for larger version Name:\timage.png Views:\t0 Size:\t755.1 KB ID:\t3236314","data-align":"none","data-attachmentid":"3236314","data-size":"small"}[/ATTACH][/URL]

The Smartec - wrong display but everything seems to work.
So am now looking for a matching firmware.

[ATTACH=JSON]{"alt":"Click...

See more | Go to post

Last edited by alltvrepairs; 03-16-2024, 06:00 AM.
Leave a comment:
alltvrepairs replied to Graetz / Akai CV338H-T50 bricked after firmware upgrade

in Troubleshooting TVs and Video Sources

03-16-2024, 01:30 AM
I have updated with only 1 file CtvUpgrade.bin in blank Fat32 formatted USB.

[B]I have 2 TVs with same problem. [/B]
[I]Tried the software from [url]https://www.kazmielecom.com/cv338h-t50-software/[/url][/I]

TV1
[I]MODEL: Graetz GR50E5300SA
PANEL: CX500DLEDM [/I]LE-5018S

TV2
[I]MODEL: SMART TECH LE-5017SA
PANEL: CX500DLEDM LE-5017S[/I]

TRIED SOFTWARE:
[I]File 1:
-CV338H-T50_1920x1080_LE-5018N_USB[/I]

File 2:
s_05-01-23-11_BBK_50LEX-7027FT2C
Описание.txt contains:...

See more | Go to post
Leave a comment:
alltvrepairs replied to Graetz / Akai CV338H-T50 bricked after firmware upgrade

in Troubleshooting TVs and Video Sources

03-16-2024, 12:50 AM
I have followed this procedure as have done it in the past.
firmware update started but at 25% displayed firmware error and rebooted with no display. Now Standby button red on. Backlights On.

tried several more times with another software and same happened....

See more | Go to post
Leave a comment:
alltvrepairs replied to Graetz / Akai CV338H-T50 bricked after firmware upgrade

in Troubleshooting TVs and Video Sources

03-15-2024, 01:19 PM
Yes I agree, Can I use the VGA port to view what I am doing on the board? Never used this method....

See more | Go to post
Leave a comment:
alltvrepairs replied to Graetz / Akai CV338H-T50 bricked after firmware upgrade

in Troubleshooting TVs and Video Sources

03-15-2024, 12:52 PM
I have the ezp2010 programmer so not sure if I am able to do this at the moment Is the software in an SPI chip ? never used the RT809...

See more | Go to post
Leave a comment:
alltvrepairs started a topic Graetz / Akai CV338H-T50 bricked after firmware upgrade

in Troubleshooting TVs and Video Sources

03-15-2024, 12:18 PM
Graetz / Akai CV338H-T50 bricked after firmware upgrade

Hi,

The original fault was set not loading completely and reboots. I have downloaded a firmware on usb, tried the upload but midway says incorrect spftware and shuts down. I have blank raster now.
Anyone has experience on this mainboard?

In the download there are other apart from CtvUpgrade.bin

[ATTACH=JSON]{"data-align":"none","data-size":"medium","data-attachmentid":3235739}[/ATTACH]
[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"image.png","data-attachmentid":3235738}[/ATTACH]...

See more | Go to post
alltvrepairs replied to Samsung HG49EE690 Hospitality TV reboot issue Mainboard BN94-11086A

in Troubleshooting TVs and Video Sources

03-15-2024, 06:27 AM
Am not aware where can I find pregrommed Chip. Will look up some more sites. As far as I know, sites like Aliexpress sell it new blank.
I have set the 'Hospitality' option to ON in service mode with the ue40k5607 main board in place. However am not sure if the apps installed on the original board can work n this replaceable board....

See more | Go to post
Leave a comment:
alltvrepairs replied to Samsung HG49EE690 Hospitality TV reboot issue Mainboard BN94-11086A

in Troubleshooting TVs and Video Sources

03-14-2024, 06:19 AM
I am like 80% sure. I might be able to replace it however not sure am able to reprogram the MMC because 99% it will be sold as new and blank internal ROM.

See more | Go to post
Leave a comment:
alltvrepairs started a topic Samsung HG49EE690 Hospitality TV reboot issue Mainboard BN94-11086A

in Troubleshooting TVs and Video Sources

03-14-2024, 03:39 AM
Samsung HG49EE690 Hospitality TV reboot issue Mainboard BN94-11086A

Hi,

I have 3 of these TVs for repair with same problem of going to standby after around 10minutes and start again continuously. I have tried a new SPI 25Q40 but fault remains. Am suspecting a CPU problem as it gets a bit hotter than I expect.
This seems to be a common problem in these models. I am 100% sure it is a mainboard issue as I have fitted a spare from a normal TV from a UE40K5607 and stays on (diplay inverted but I managed to rotate in SM using a different display).

Any help appreciated!...

See more | Go to post
alltvrepairs replied to UE50H6200 Freezes on boot up- Firmware required.

in Troubleshooting TVs and Video Sources

03-11-2024, 03:35 AM
I have flashed the 25Q40 and TV set fixed.

Have found all the firmware information in this sister site [url]https://shorturl.at/hKS13[/url]https://I have flashed the 25Q40 and...at/hKS13[/url]

See more | Go to post
Leave a comment:
alltvrepairs started a topic UE50H6200 Freezes on boot up- Firmware required.

in Troubleshooting TVs and Video Sources

03-07-2024, 08:02 AM
UE50H6200 Freezes on boot up- Firmware required.

Hi,

I am after an SPI dump for this set. Fault is after the LOGO appears, the remote command stop responding and a blank screen is shown. Backlights and screen are 100% good as have tried another board of a another model but similar screen type.

Exact model code is UE50H6200AYXZT
[B]BN94-07385A (BN94-07385E good as well)

Anyone has some information please?[/B]

[URL=filedata/fetch?filedataid=330014][ATTACH=JSON]{"data-align":"none","data-size":"medium","data-attachmentid":3230363}[/ATTACH][/URL]...

See more | Go to post
alltvrepairs started a topic QE55Q0TAT BN94-15361X copy account data to hew main board

in Troubleshooting TVs and Video Sources

02-22-2024, 11:31 AM
QE55Q0TAT BN94-15361X copy account data to hew main board

Hi
Got a new board to repair dead set.

customer had some paid accounts that wants to reuse from old board as he has no more access to the original email account for some iptv and other services like Disney etc. Are these stored in spi flash?
I guess they are in a Samsung account storage area.

Tks

2 Photos

See more | Go to post
alltvrepairs started a topic Thomson 65UC6406 service mode required (Android TV)

in Troubleshooting TVs and Video Sources

02-03-2024, 10:14 AM
Thomson 65UC6406 service mode required (Android TV)

Hi,

Just replaced the backlights of this set and want to enter SM to reduce permanantly a bit the backilght settings.

Cannot find the correct settings. This set has only 3 buttons on the bottom of TV as found many say press vol- and ch- together.
Thanks

See more | Go to post