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Search: Posts Made By: jetadm123
Forum: Troubleshooting TVs and Video Sources 06-30-2020, 09:10 AM
Replies: 37
Views: 702
Posted By jetadm123
Re: Sony XBR-70850B Lightning

Was the replacement mainboard new/used? If used, possibly defective? Have you gotten the firmware update to load?
Forum: Troubleshooting TVs and Video Sources 06-23-2020, 09:39 AM
Replies: 21
Views: 674
Posted By jetadm123
Re: Sony KLV32U300A power on/off with 2 times blinking led

What are the voltages you're seeing at the power supply connectors? List each pin description with the power on and off voltages.
Forum: Troubleshooting TVs and Video Sources 06-23-2020, 09:24 AM
Replies: 37
Views: 702
Posted By jetadm123
Re: Sony XBR-70850B Lightning

Wow! A tcon board under $20 for a 70" 4K Sony tv. That's a pretty good deal! I would be very surprised if that lightning strike passed through the main board and damaged only the tcon.
Forum: Troubleshooting TVs and Video Sources 06-17-2020, 04:36 PM
Replies: 29
Views: 828
Posted By jetadm123
Re: bn44-00604F No Secondary Power

$30! Just where exactly is it being shipped from? As R_J mentioned, this part is readily available through eBay and also aliexpress. Full part number is SSC3S111. Wouldn't hurt to also change the...
Forum: Troubleshooting TVs and Video Sources 03-03-2020, 10:07 AM
Replies: 14
Views: 506
Posted By jetadm123
Re: Samsung le37c530

Since you have 5 minutes before shutdown, you can try heating up each board with a hairdryer to see if you can accelerate the shutdown process. This will hopefully help narrow down which board is...
Forum: Troubleshooting TVs and Video Sources 01-06-2020, 05:59 PM
Replies: 40
Views: 1,639
Posted By jetadm123
Re: Vizio E480i-B2 Won't Turn On DPS-167DP IC901

It's okay that it's physically larger. You would expect that, since it can handle more current. Is the problem the leads of the SB3100 are too thick and will not fit through the holes of the board?
Forum: Troubleshooting TVs and Video Sources 01-06-2020, 01:56 PM
Replies: 20
Views: 530
Posted By jetadm123
Re: LG 32LN575S No power Blown fuse.

If you see no reading for R106 and R107, remove them and check them out of circuit.
Forum: Troubleshooting TVs and Video Sources 01-05-2020, 02:07 PM
Replies: 20
Views: 530
Posted By jetadm123
Re: LG 32LN575S No power Blown fuse.

You should use resistance mode to read R113. Not diode mode.

IC101 should under the board (green side).
Forum: Troubleshooting TVs and Video Sources 12-31-2019, 11:22 AM
Replies: 40
Views: 1,639
Posted By jetadm123
Re: Vizio E480i-B2 Won't Turn On DPS-167DP IC901

suggest you check the mosfet transistor connected to ic901 for shorts. it might be under the heatsink above ic901.
Forum: Troubleshooting TVs and Video Sources 12-18-2019, 01:36 PM
Replies: 36
Views: 2,536
Posted By jetadm123
Re: Hkl-480201b hkl-500201b hkl-550201b psb repair

They are 150v 5A schottky diodes. This should work:

https://www.digikey.com/product-detail/en/taiwan-semiconductor-corporation/SR515-A0G/SR515A0GCT-ND/7359325
Forum: Troubleshooting TVs and Video Sources 11-15-2019, 10:41 AM
Replies: 16
Views: 551
Posted By jetadm123
Re: Trash that broken TV and get a brand new for $59, but hurry

Should be interesting to see what kind of TV deals Walmart, Target, etc will offer come Black Friday. They always offer something super cheap just to get you in the door.
Forum: Troubleshooting TVs and Video Sources 11-09-2019, 08:37 AM
Replies: 5
Views: 313
Posted By jetadm123
Re: RCA LED42C45RQ transistor burned on main board

It's a P-channel mosfet. "3407" is the key number to look for and is sold under different part numbers by various manufacturers. On digikey.com or mouser.com, just type in "3407 mosfet" and you...
Forum: Troubleshooting TVs and Video Sources 08-29-2019, 06:54 AM
Replies: 34
Views: 7,213
Posted By jetadm123
Re: Help with Sharp TV - LED driver board etc...

All your voltages look good except for the 7.5v output voltage. The 2.5v is the control voltage, which turns the regulator on. The third pin is ground. Regulator is definitely bad. The fun part is...
Forum: Troubleshooting TVs and Video Sources 08-19-2019, 02:24 PM
Replies: 1,019
Views: 165,817
Posted By jetadm123
Re: e701i-a3 no picture but backlights

Did you actually test the mosfet to see if it's shorted?
Forum: Troubleshooting TVs and Video Sources 08-03-2019, 09:50 AM
Replies: 6
Views: 2,314
Posted By jetadm123
Re: Lg32lv450u

Sure you installed the caps correctly? There's a "+" and "-" lead.
Forum: Troubleshooting TVs and Video Sources 08-03-2019, 09:46 AM
Replies: 8
Views: 489
Posted By jetadm123
Re: Sharp TV LC-40LE820X Shutting off on TV function.

Since it takes 20 minutes to become "choppy", it could be a heat related problem. Try heating each board with a hair dryer to see if you can get the failure to occur sooner.
Forum: General Electronics Technical Discussion 08-03-2019, 09:30 AM
Replies: 23
Views: 1,154
Posted By jetadm123
Re: What is the level of repairability of these equipements ?

I think what is worth repairing also depends on what part of the world you live in. Are those welders you work on really expensive and hard to get in your country? If yes, then it makes sense to...
Forum: Troubleshooting TVs and Video Sources 07-23-2019, 01:50 PM
Replies: 23
Views: 823
Posted By jetadm123
Re: Sony xbr-75x940d

Is the red light blinking in any type of sequence?
Forum: Troubleshooting TVs and Video Sources 07-23-2019, 12:41 PM
Replies: 23
Views: 823
Posted By jetadm123
Re: Sony xbr-75x940d

Did the previous owner ever say what the original problem was?
Forum: Troubleshooting TVs and Video Sources 07-23-2019, 11:09 AM
Replies: 26
Views: 4,481
Posted By jetadm123
Re: Samsung Plasma TV model PN64F8500 power on issue

The board you have uses a electrolytic cap versus ceramic for the other boards. I would go ahead and use panasonic ones you chose.
Forum: Troubleshooting TVs and Video Sources 07-23-2019, 10:54 AM
Replies: 26
Views: 4,481
Posted By jetadm123
Re: Samsung Plasma TV model PN64F8500 power on issue

Thanks for the photo. Would be interesting to know if you have a newer or older version of the Y board as compared to the others in this thread. Yes, the EEU-FR1H220B & EEU-FR1H220 will work fine....
Forum: Troubleshooting TVs and Video Sources 07-23-2019, 10:27 AM
Replies: 26
Views: 4,481
Posted By jetadm123
Re: Samsung Plasma TV model PN64F8500 power on issue

without knowing the differences between the 22uf and 30uf y board versions, I would stick with the 22uf. Is there just the single 22uf cap with two empty spaces next to it? You can use a ceramic 22uf...
Forum: Troubleshooting Computer Displays 07-23-2019, 09:07 AM
Replies: 15
Views: 1,634
Posted By jetadm123
Re: Apple 27" Cinema Display (A1316) has trouble turning backlight on

Thanks! I'm sure others with the same problem will appreciate this info.
Forum: Troubleshooting TVs and Video Sources 07-23-2019, 08:11 AM
Replies: 23
Views: 823
Posted By jetadm123
Re: Sony xbr-75x940d

The question that's begging to be asked is that do you have the correct replacement main board? You can try shopjimmy.com to verify what main boards fit your tv and compare the part number(s) of that...
Forum: Troubleshooting TVs and Video Sources 07-23-2019, 08:04 AM
Replies: 26
Views: 4,481
Posted By jetadm123
Re: Samsung Plasma TV model PN64F8500 power on issue

You should look at the Y board photos on this thread to verify that you have a similar looking board. If yes, then you probably have a newer/older version of the board. Assuming it's the same board...
Showing results 1 to 25 of 500

 
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