For want of a 10c part...

Sep 07, 2008 18:04

So I've been messing around with things that involved turning off the electricity to the house temporarily. I shut down all the computers and then cut the power. All fine.

Unfortunately, when I switched it back on, the surge of other appliances starting up must have killed our DVD player, a Pioneer DV-355K. This was Choice's number one recommendation back when we bought it, and has served us well both here and in the US.

So I looked on Ebay and found one in a few days, bid on it, and then kept googling around to see if there was _anything_ at all about this model and power issues. I found there was a notification about it from Pioneer that I could buy for US$7.50 from some dodgy site, but otherwise had great difficulty finding anything. Wasted a good part of the day that I should have been doing better things...

... but finally I found this: http://www.diyaudio.com/forums/showthread.php?threadid=49806

CAUSE -- Resistor R74 on the power supply unit is opened.

So I pulled out a multimeter that I had handy (actually, I'd already unpacked it. Bought it years ago and had never used it, but it was handy for checking the fuse) and tested. Yep, open circuit.

The resistor is a 2M2 - looked like about 1/8 watt by its size. Tiny.

The inside of the DVD player is mostly empty - just the power supply board, the main system board and the drive unit in the middle. There's heaps of space.

So I went to Dick Smith and spent 10c on a 1 watt 2M2 resistor. Huge. It's sticking up way above the board, and vertically rather than horizontally mounted. Still - the DVD player is working again, and it only took 10c of parts, probably somewhat more than that in fuel to get, and about 5 minutes work - most of which was waiting for the soldering iron to heat up!

I'm rather proud of myself... but hoping I don't win the Ebay auction now, because I don't need 2 of these things...
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