Currently processing a NAD C350 with stones instead of capacitors on the powerrails. Are there more issues to address with this amplifier? General recap advice is obvious, not to post.
Any further advice and experience is welcome.
Any further advice and experience is welcome.
There are a few service bulletins. If your unit is late production with high serial number the updates may already be applied.
Thanks Bill_P!
It's a H02~ serial, so all does apply.
Though none addressed issues in the bulletins were actual problems!
Next is a proper circuit drawing. I have a schematic, but not complete.
It's a H02~ serial, so all does apply.
Though none addressed issues in the bulletins were actual problems!
Next is a proper circuit drawing. I have a schematic, but not complete.
hifiengine denies my sole registration for unknown reason for a year, most probably database related. No correspondance seems possible, no access at all. Very disappointed. I have given up somewhile ago as it renders inaccessable to me beyond my understanding.
Thanks for the link, I'll try something else.
If no cure for the C350, I'll trash it.
Thanks for the link, I'll try something else.
If no cure for the C350, I'll trash it.
I have never found the complete service manual for the C350 on the web. The attached file has schematics and alignment procedure. NAD is known for bad rail filtering caps as you indicated. What else is wrong with your C350?
Save the 22000uF main ps caps is everything spic 'n span. Elaborate repair, not as solid as 80-ties amps (commercialised), tincan casing. NAD is known as not low budget, but if this is middle class, it's sheer poverty. The Sanken end bjt's are ok, but those are... from Sanken.
And these 22m caps... arriving soon. I hope.
I listened to the old and died caps: when shaken, you hear this tropical rumble of knocks on wood. Good vibrations! Less suitable for other purposes.
And these 22m caps... arriving soon. I hope.
I listened to the old and died caps: when shaken, you hear this tropical rumble of knocks on wood. Good vibrations! Less suitable for other purposes.
Arrived finally, these jolly chaps... caps. From the USA! Thanks guys!!!
Put in, aayaayaay, a bit taller then the originals... does the chapeau fit?
Screws everywhere, pressing (nnnnng). Blink!
Powered on without thinking: bang! In operation as a humming nuclear power plant.
Everyone thanks again.
Put in, aayaayaay, a bit taller then the originals... does the chapeau fit?
Screws everywhere, pressing (nnnnng). Blink!
Powered on without thinking: bang! In operation as a humming nuclear power plant.
Everyone thanks again.
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