I have a 20 year old Technics SA-424 Stereo Receiver (Quartz Digital Synthesizer... whatever that means).
I dont want to throw it away because it has sentimental value.
I am trying to use it as a headphone amp for my Grado sr325is.
The problem with it though is that it Crackles and hisses when you turn any sort of knob on it.
I have found out that I need to spray some contact cleaner inside the knob mechanisms.
The thing is, I cant seem to detach the faceplate completely off (and find "the area" to spray the contact cleaner) after I take out all the screws. I am only able to get it loose and on an angle/slant , because it seems the plate is connected with wiring to other things.
If I post some pictures can someone give me so tips, advice, recommendations?
Maybe there's something else that needs fixing/doing that I cant see.
Front:
Inside:
As far as the faceplate will come out:
Right side view of inside:
Part of right side area, notice the rusting on the metal:
One more shot of the right side:
Left side area:
Another left side area:
Volume knob mechanism:
Front, Volume Knob:
*BTW, I'm not very electronic lingo literate, so if you say find or look at the "pots, potentiators, amp, / some specific circuit", I dont think I will know were that would be" So if you have some patience and time to spare and help a fellow headfier out, please do! It would be much appreciated*
Thank you
Edited by AllsWell - 6/26/10 at 9:26am





