I get erratic operation that I've seen before. I was told it needed a new power supply. I sent the unit in when it was under warranty and it was fixed but now the problem is back. I'm getting the same symptoms as before. Trays may or may not respond to open buttons and other erratic operation. Does anyone know what it is on the power supply that goes. Capcitors and voltage regulators I know often cause problems in power supplys. I'm not using it anymore but I was thinking of fixing it if it's not too much of a problem and then auctioning it off on ebay. I may go ahead and test the caps. It has been a few years since I've worked with electronics.
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Re: Philips CDR 795 Power Supply Problem
I don't know what you are using to check the caps but in order to find the culprits, it's almost mandatory to have an instrument that will measure both capacitance and dissipation factor (DF) since that is what is killing most of our modern electronics.
If you don't find any caps pregnant or leaking deposits and plan on shotgunning it, I'd start with those with values between 4.7 & 100uFd as these are the most common failures and mostly in feedback paths and are lower voltages.
You can buy them at Mouser Electronics with no minimum charge and 'at cost' shipping.
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the wall plug type power supply (made in China) may be likely bad.
This actually is a switch mode power supply very unlike the old and usual linear power supplies. It is common the capacitors used in this supply are under rated and do not last very long.
The problem usually seen with dim LED lights on the unit, limited range and intermittent operation.
Try to find a replacement power supply with perhaps higher current rating.
It seems a lot of people are having problems with the Protron power supply. I’ve been able to repair all the ones I’ve seen so I’m confident I can fix them. I don’t sell the replacement power supply but I’ve heard about the ones on EBay. They seem to be a mishmash of two power supplies (12vdc and 24vdc) wired together with the proper connector. This should work but it just doesn’t sound very clean looking to me and they end up costing $150. I’ve been charging between $50 and $100 to repair these power supplies. My recommendation would be to send me the power supply I’ll check it out and unless it’s unusually damaged it will cost $50 plus shipping to repair. If I can’t repair it I’ll return ship it and only charge for shipping. I will guarantee the repair for 1 month. I don’t know what’s causing the power supplies to fail so I can’t guarantee it any longer than that. My feeling about the reason the Protron power supply stops working is two part; could be overheating due to lack of proper ventilation to the power supply; or the TVs power requirement is overdriving the power supply. Feel free to contact me if you have any questions. I repair these at my work, so here’s the shipping address: Dave Simpson 23372 South Pointe Dr. Ste. B Laguna Hills, CA 92653 Also, I’m set up for PayPal. firstname.lastname@example.org
I have v30dmtt 29 inch tatung and had the same problem. I took the power supply out and took it to repair man. He told me it couldnt be fixed. I contacted the manufacturer and had a new one sent. The phone # is 915-771-7554 but you need to call 1-888-482-8864 to get a case #. It costs 70.00 for a new power supply unit.The part # I needed was 6693006610. I hope this helps.
Usually this will damage the power supply only.
To make sure your that your motherboard is working, try to find a working power supply unit and connect it.
If it does not work your motherboard may be get damaged. Also check for warranty.
If your system contains a graphics card, check that too, it may also get damaged with voltage variations.
I just purchased one from Ebay. It plays fine on both sides. The recorder will recognize CDR's and the display will say recordable media. But, when I attempt to actually record, it won't work. I have another unit exactly like this one and the CD's I have work fine with that unit. I'm guessing this unit's recorder is bad? Any suggestions? Thanks.