MR80 power supply boards with original filter caps on bench.
Picked up the unit today, here's a quick pictorial...
Clean as a whistle under the bottom panel. This one was definitely a non-smoker.
Removed the glass...
The "Lock" and "Stereo" bulbs are missing, so that's an easy fix.
Preset 3 & 4 leds are always on. The front panel circuit board has some char marks from what appear to be a smoked and replaced R501 resistor. The etches look fine but something definitely smoked.
Will dig deeper tomorrow.
Thanks Max! You are correct it was Ren & Stimpy and I knew that...memory failed me in my exuberance!
Just bought an MR80 and narrow band bulb is out...this is my first Mcintosh piece. Is the only way to fix it is by removing the glass?
Thank you
Pulls in stations well and sounds wonderful through my bench system MC2200 and Yamaha NS10s.
Sorry... The bulb that illuminates the Narrow Band knob in the bottom left. It flickered for a bit and now iNarrow band bulb?Or do you mean the panel illumination for the selectivity settings?
Narrow band bulb?Or do you mean the panel illumination for the selectivity settings?
Sorry...yes. The Selectivity bulb. Long day yesterday!
This is what I do. Heck I don't even know if my presets work or notThis may sound simplistic but if the tuner works fine RF wise and the display works, why not just use it like an MR78?
The good news is that the faceplate is easily removed for bulb replacement.
The bad news is that you run the risk of screwing up all the touch-button controls when you do. Don't ask me how I know. Talent & expertise on a whole different level when working on an MR80. Not a unit for the amateur to get his feet wet.[/QUO
Thank you