Re: Samsung UN60H6203AF Partially working, but no image
Thanks for the replies. Another TV saved from the crusher and the landfill.
Martin
MAVA
Member
Last Activity: 02-11-2024, 09:27 PM
Joined: 03-27-2018
Location: Sacramento, California
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Re: Samsung UN60H6203AF Partially working, but no image
Well Gentlemen,
The darn thing worked, but no explanation???
The voltage at the T-Con fuse was 12.25v on both sides of that fuse, and that is a 7amp fuse by the way....
I was not going to disconnect one side of the T-Con cables-What the heck was it going to do?? Well to my surprise, I got half the screen to WORK!!!! I shut down the set, and I tried the other side of the T-Con cable. The other side works. For giggles lets plug the cable back in and turn on the set, and what do you know....Last edited by MAVA; 03-09-2022, 01:27 PM.Leave a comment:
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Re: Samsung UN60H6203AF Partially working, but no image
I found it on the street like a few years ago, and I had a LCD back light tester, and tested the lights once the TV did not turn on I ordered the back lights from China for like $30 usd, but they took like 4 months to arrive during the heat of COVID.
I tested the six individual strips, but failed to test all the strips from the power connector. One connector on one set of three was not inserted all the way, and the other set one pin in the connector harness got pushed out,...Leave a comment:
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Re: Samsung UN60H6203AF Partially working, but no image
okay, will do, and report later.
Thank you,
MartinLeave a comment:
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Samsung UN60H6203AF Partially working, but no image
Got a 2014 60" Samsung.
It had the usual burned out back-light LEDs. Replaced them, yet for some reason two of the six LED strips the connection connector were not pushed-in all the way, so the ENTIRE circuit was open. Disassembled the TV again to fix the connections at the LED strips.
Now the TV turns on. The back-light stays on, but no image. The open voltage test to the LEDs is 404v to chassis ground, and I get 12.83v to the digital/tuner/mother board with the cable connected to the power supply.
I get no sound. The power LED on the lower right... -
Re: Anyway to recover Hi-8 tapes that donot play?
Thanks RJ,
Yea..I'm in the CAP replacing business with 90's Mercedes cars. Fully aware, 100 or so surface mount caps is no easy task on thin PCBs..
You know the first few seconds of the tape near the lead-out clear section plays, and the rest goes into snowball image, yet one can kinda make out the faint image on fast forward.
I just do not want to fork-out $200-$500 USD for another played that will need caps too. If they were under $100 I may just gamble it, or just go...Leave a comment:
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Anyway to recover Hi-8 tapes that donot play?
Anyway to recover Hi-8 video tapes that do not play? It is not the problem of the this Hi-8 player.
Maybe someone has a trick, or recommends a player that can play these tapes.
The player I have is a Sony Camcorder TR-101, and it will not play them anymore. I just want to play them one more time to convert them to digital format.
Thanks,
Martin -
Re: How does one open up those Apple bdr service files??
worked great,
Thank you
...
Leave a comment:
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How does one open up those Apple bdr service files??
Having a heck of time trying to open those Apple bdr service files? or any way to convert them to PDF.
Fusion360 will open them, but I get a error on few that I tried.
I guess these bdr files are "pcb component location" file as Apple pcbs have virtually no component silkscreen text on them.
thanks,
Martin -
Re: MacBook Pro 17" Early 2009 Logic Board Help
Question, Can I take the GPU from other WORKING Apples of the similar specifications? Or from a PC with similar GPU?
Thanks,
Martin...Leave a comment:
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Re: Another dead Apple A1418 21.5" i5 computer
It is all cool
The web is loaded with many "fixes". I do not normally fix these PCBs, but I'd like to get it going if I spend a little time, but like everything else we can always buy or replace our selves out of problem in this world. I know I can find the PCB's for around 100usd, yet it may a fuse(wishful thinking) or trace because I have NOTHING in terms of LEDs
I'm idling, so I got time to spare.
Martin...Leave a comment:
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Re: Samsung Samsung UN55D6050TF-Power Supply Pulsing, I think.
Oh yea, did that right away too...
Thank you Budm...Leave a comment:
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Re: Another dead Apple A1418 21.5" i5 computer
Thank you for your post...
I will pull that info out of the GPU if it matters... The power supply was cheap, so I took the gamble and bough another one, and NO LEDs AGAIN
I did poke around and removed the heat sink and found the thermal paste almost dried up, and Puerto Rico is hot and humid, and some of the screws had a ting of rust on them
I'm no genius at board level with Mac's, but I did have have one get hot to kill the hard drive(data-wise), so I put new thermal...Leave a comment:
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Re: Samsung Samsung UN55D6050TF-Power Supply Pulsing, I think.
Finally fixed the TV, and it was the light strip. I bought some Chinese replacements light strips. I got them in three-weeks from Aliexpress. Paid like $23 out the door for the pair, and replaced both of them.
[url]https://www.aliexpress.com/item/4000852181040.html?spm=a2g0s.9042311.0.0.76f84c4dJ6Y267[/url]
I noticed the replacements had a thin layer of double-sticky tape, so they isolate them thermally from the main aluminum chassis(Bad Bad Bad Move... So they burn-out faster). I removed the...Leave a comment:
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Re: MacBook Pro 17" Early 2009 Logic Board Help
Thank you for the reply, I'm trying to replace GPUs here. Got all the time in the world, and at a "American Penney an hour" it's cheap. The Corona F'ed up my life until who knows when I can go to school again.
These boards are cheap too, but a few YouTubers made some BGA Maachines...
Thank you for your insight on the chips
Martin...Leave a comment:
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Re: MacBook Pro 17" Early 2009 Logic Board Help
I got several questions?
A) these are the replacement GPU's that exist new on the market?
[url]https://www.ebay.com/itm/new-GPU-G86-771-A2-GPU-NVIDIA-GeForce-8600M-GS/231274060056?hash=item35d9021918:g:GGkAAOSwBahVG5KI[/url]
B) Since these New GPU's come re-balled with new solder, couldn't the DIY'er install the new GPU with some aluminum straight straps that crisscross all four outside corners of the GPU to align it(All Straps locked-in prior to removing the old GPU). The Digital...Last edited by MAVA; 06-16-2020, 01:05 AM.Leave a comment:
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Another dead Apple A1418 21.5" i5 computer
Good day Gentelmen,
Hope everyone is staying safe these days...
Got a dead A1418 with NO service LED's turning on, yet I guess it is a popular thing with this generation of iMacs.
Searched the entire forum here for anything on a dead iMac with no service ON.. LED(s) with a supply that puts-out 12v at the power connector. I guess mine is the exception with a unique problem.
I was expecting to see multiple voltages like a PC power supply from that six-wire output, but all it's just "+12v DC"( 3 wires for ground and 3 wires for... -
Re: Samsung Samsung UN55D6050TF-Power Supply Pulsing, I think.
Thank you for the help, but it may be a few weeks before I get to it, and I will continue to post.
Thank you,
MartinLeave a comment:
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Re: Samsung Samsung UN55D6050TF-Power Supply Pulsing, I think.
Budm,
By result it sure is it, but their is 100 LED's per side, and I hand soldered all 100 LED's with a heat gun and paste flux
I had found a link for a pair of new LED strips for this TV for $50 or so. I need to find that link as the fleabayers want too much for just one stip. Have any links on cheap LED Strips??
MartinLeave a comment:
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Re: Samsung Samsung UN55D6050TF-Power Supply Pulsing, I think.
This is TRUE. The Digital Board was disconnected !!
Individually they light up fine, but in series I get nothing I can see, nor will the back light register anything on the tester. Yet the TV set worked with these LED strips.
I have not done any board work the power supply board, but maybe the 100 individual LED's have a higher bias voltage than the other strip. Well I guess it does. The right strip I get 142vDC. The left strip I get 294vDC...
Can I just...Last edited by MAVA; 05-17-2019, 08:32 PM.Leave a comment:
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