Re: Sony XBR-70850B Lightning
Was the replacement mainboard new/used? If used, possibly defective? Have you gotten the firmware update to load?
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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.Last edited by jetadm123; 06-23-2020, 09:42 AM.
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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.
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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 small startup cap tied to the VCC pin.Last edited by jetadm123; 06-17-2020, 05:14 PM.
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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 causing the problem.
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Re: LG 32LN575S No power Blown fuse.
If you see no reading for R106 and R107, remove them and check them out of circuit.
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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).
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Re: Hkl-480201b hkl-500201b hkl-550201b psb repair
They are 150v 5A schottky diodes. This should work:
[url]https://www.digikey.com/product-detail/en/taiwan-semiconductor-corporation/SR515-A0G/SR515A0GCT-ND/7359325[/url]Re: Hkl-480201b hkl-500201b hkl-5502.../7359325[/url]
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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 removing the heatsink to replace the regulator.
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Re: e701i-a3 no picture but backlights
Did you actually test the mosfet to see if it's shorted?...
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Re: Lg32lv450u
Sure you installed the caps correctly? There's a "+" and "-" lead.
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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 offer a repair service. Same thing with phones, tablets, tv's, etc. If your import taxes make it really expensive to sell these items, then it makes sense to try and repair them. Find out what items sell for the most money, that will help in determining what makes sense to repair. As mentioned before, computer data recovery is...Last edited by jetadm123; 08-03-2019, 09:39 AM.
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Re: Sony xbr-75x940d
Is the red light blinking in any type of sequence?
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Re: Sony xbr-75x940d
Did the previous owner ever say what the original problem was?
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