Assuming you have some very basic electronics safety and repair skills, this should be pretty straightforward. You'll need a screwdriver, soldering iron (and soldering skills), flux, electronics solder, possibly some small wire, a multimeter, and a wire cutter and stripper.
I connected some of the ubiquitous cheapo speakers nearby, turned the volume all the way down, and plugged it into the wall. When it powered up, the speaker protection circuit relays went "click" indicating all's well. (Most halfway decent receivers have protection circuits). When I turned up the volume, lo and behold I got sound.
Next step was to power off, unplug, and clip the lamp off, strip the leads in the stereo. Use multimeter to measure voltage across the lamp wire (without letting them touch!). Use mini clips (see pic) to clip to the stripped leads, then plug in and power up with hands outside of the stereo. Measure for both DC and AC voltage. Then find a lamp that matches the voltage you read. It doesn't matter if it is AC or DC because the incandescent lamp won't care.
Next step is to solder in the lamp. If you get a lamp that comes with longish wire leads it is easier. If the wire leads aren't insulated it might be wise to put shrinkwrap over them and shrinkwrap over the base of the bulb. With the bulb connectted and hands away from the stereo's guts, power up and make sure it lights. If so, unplug, power off, reinstall the bulb, and replace the cover and you're done.
For the advanced types, if you find the voltage on the leads for the bulb is at or above the voltage rating on the lamp, you could install a small resistor inline with the bulb which will reduce voltage. It'll be dimmer, but hopefully run a little cooler and last longer than the original.
I then sold it to a nice fellow for a few bucks more than I paid, so he ended up with a deal, I ended up with a little money for my hobbies, and the machine will no doubt serve him well for years to come. I didn't manage to get a picture of the unit after the fix so you'll just have to trust me.
I also performed the same fix on an old Technics receiver I've had laying around, as well as an old Pioneer CT-F8282 cassette tape deck. I really love simple fixes!
Can you save me the trouble of borrowing a voltmeter and tell me what the voltage was on your lamp. I happen to have the same receiver. Thanks
ReplyDeleteI would love to... But I sold the receiver a few years ago. :(
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