Latest threads in Electronics Repairshow only best voted threads

Subject Author Posted Replies
 
Panasonic DMR-EZ-27 won't start
Following a power outage the unit keeps rolling the oooo... forever. I can get it to shutoff by holding the power switch on for a while, but then when I start it the display reads HELLO and sits there...
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Panasonic Plasma TV TH-46PZ85U shut down problem - help needed
Folks I need your help once again. I have the above mentioned TV that shuts down about a second after power up. Get two blinks on the power LED. This is 15V(P) DET code. When the set is plugged in,...
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the lie of rapid NiMH self-discharge
I've never had problems with the supposed rapid self-discharge of NiMH cells. And now I have proof. Almost two years ago, I visited a friend in Gold Bar WA for Christmas. I took some camera equipment,...
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Sony CD Player Repair
I have an old Sony 5-disc CD player. It wasn't working when I got it. Cracked the lid and the issue appears to be that the motors are worn down. This unit is maybe 10+ years old and in 2nd or 3rd hand...
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6
 
clock radio problem
clock radio with slow "put put put" motorboat sound in speakers with radio OFF. no visual indication of bad components or bad solder joints. have replaced two electrolytics nearest power transformer...
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Another stupid question
I used to run my cable and antenna through my VCR and record my programs and then watch them on my old TV. Well now since the recent digital transition I can no longer do that, so I was wondering if...
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Need schematic for Bose AWRC-1P
Took some water damage, and wiped a couple of circuit traces, which I have replaced. It won't turn on however, and shows no sign of life on the display. The power supply seems ok, plus and minus...
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2
 
Can I substitute a 74HC75 for a 74LS75?
Actually I have done it and it is working, but can it be expected to last? Or should I order some LS's and install what was originally in it? If it matters, it's being used on a video arcade game...
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QAM and OTA tuner
Lately I have had quite a few requests, mostly from elderly customers, who couldn't care less about HD TV for a way to keep watching their old reliable tube sets on either cable or antenna. Is there...
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Tosh 37WLT58 anyone ...?
Anybody happen to have a copy of the schematics for this TV ? Particularly interested in the PSU. There are loads of downloads on the 'net, but on most of them, the links do not appear to take you to...
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1
 
Neon Sign Repair Questions
Hello all... A number of neon signs were recently delivered to me in nonworking condition. All but one are driven by an Evertron 2610 power supply. Surprisingly enough, this power supply and sign...
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3
 
Is this due to RoHS solder?
Took apart a Volvo 850 fuel pump relay. Cracks everywhere. Regards, Boris Mohar Got Knock? - see: Viatrack Printed Circuit Designs (among other things) void _-void-_ in the obvious place
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Toshiba TV
Hi I have a Toshiba TV MDL40RV525U that flickers for a while when turned on and after a while it settles down, it gets worse every time I turn it on, I'm thinking power supply. Thanks for any advice I...
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3
 
Aiwa Z-L500 Stereo Tape Deck Eject Issue
Hi, I am a service technician for many years. This Aiwa Z-L500 stereo is my own. From time to time, I can not eject a cassette. Both units (dual cassette) have this issue. I replaced the belts, but...
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Cable channels
Our cable system just went 100% digital. Except for announcements regarding the change over on several analog channels there is no more analog programming. I have a 2008 Samsung flat screen set in...
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