Recent content by Trike

Thanks JD, I know I have a cheapie harbor freight multi meter somewhere. I'll compare it to the Fluke 73 I've been using. But yeah, I'm measuring 119vac going into the rectifier and getting over 300vdc on the output of the rectifier. Checking my fluke against a 12v source is showing the correct...

JD,I did some more tests as you suggested. I'm noticing weird things now, I put D114 back in circuit, and the C131 starts at 315vdc and settles around 270vdc. I know when we first started troubleshooting, I was getting around 160vdc at C131.Measuring pin 2 and 4 on the tny255, I saw it...

I'm using a simple fluke multimeter to check the voltages, the model escapes me at the moment. There's no fancy features on the meter, just AC, DC, Diode check, and amp reading. Before I lifted D114, the voltages were around 160vdc.I'll check it out over the weekend when I get some time and...

It's weird. When the main is first plugged in (120vac), Measuring across C131, I get 170vdc, and it continues to rise and it finally settles around 280vdc after 20secs or so.With D114 still lifted Measuring across pin 1 and 8 on the TNY255, I get .014vdc Measuring across pin 1 and 5 on the...

Thanks for the heads up on the ebay board. I'll keep an eye on it.JD,With D114 lifted, I'm getting 280vdc on pin 4 and 5 of the opto isolator(IC111). I probed the Positive pin on the rectifier and pins 4 and 5 on the opto. If I continue to probe it, the voltage slowly starts dropping. I...

Thanks for all the help guys, I'm learning a lot from this process.I lifted D114, I'm getting absolutely no dc voltage coming out of the secondary. I'm seeing 110v DC going into the primary. I attached a pic of the scope reading on the secondary with D114 lifted.JD, C135 is a R41 MKT...

I can't seem to get any waveform out of the secondary or after the diode. I was able to get some kind of waveform from the primary and before the rectifier with the AC setting. I attached a couple pics of what I got. Of course it probably doesn't matter since the problem probably starts at the...

Hi Irwin,Sorry, I wasn't clear in my previous post, the beep wasn't continuous. It beeped on and off, then when I reversed polarity, it beeped on and off again.I measured the secondary again and i'm getting a dead short. .2 ohm. Maybe the transformer is toast? It appears to be a Kaschke...

Hi Irwin,Thanks for helping out! I just used an ohm meter on D114 and its reading 1.2M ohms. When I switch my fluke to diode mode, I do get a beep, then get another beep when polarity is reversed.I also looked for some BYD77 diodes and I can't seem to find any available anywhere.I'll...

I finally got a little bit of time over the weekend to mess with it. I was measuring about .4vdc at the input leg of the 5v regular. I was also getting about 146v at the source and drain pins of the driver. I was getting power to the Enable pin as well, but can't remember the voltage. Another...

Thanks JD,I'll check the drain on the TNY255 and see if the optoisolator is triggering properly. It sounds like the driver is dead, I remember measuring the output/secondary of the transformer and got no reading at all. I'll double check it again tonight in case I missed something. Thanks...

This is the 120v version with the MAX 7 lamp installed.

Hi,I just bought a broken Atomic 3000 and need some help repairing it. When I plug it into the wall (120v), there's no signs of life. The LED's and fan don't turn on. I have also checked and replaced the fuse.I opened it up to look at the PCB for damage, but no signs of charring or burnt...