nad c320

reddish75 · 15th April 2008, 02:30 PM

hi does anyone know the secondary voltages for a nad c320 amp not the bee one im having a hard time finding any service information for this!

thanks

chris

Andy L. Francis · 15th April 2008, 02:45 PM

NAD C320 service manual

Idle rails are +46V/-46V, then power transformer is about a 60V-CT/2×30V (loaded) one.

Leolabs · 16th April 2008, 01:13 AM

Actually it has 2 sets of voltage,one for the normal listening,one for reserve power.

rupsyco · 16th September 2008, 02:05 PM

Hi, I've got the same problem, seems like the toroidal transformer primary opened... it's strange, when checking it one of the wire connecting from the secondary to the board was cold soldered! Anyway, thanks for the info on the voltage, I had contacted Toroid international to buy a replacement but they said that was NAD proprietary and would not sell straigth to me, went to NAD website and contacted the representative in malaysia... but no response, so I was thinking about unwinding it to see if there's a fuse (you know what i mean, at times in transformers there are this in line fuses among the first windings) So before i started checking that out i wanted to see with you guys if you know if there's a fuse enbedded in the transformer. Any info is welcome, and if more details on the output voltages perhaps i can get a replacement done.

15th April 2008, 02:30 PM	#1
reddish75 diyAudio Member Join Date: Aug 2006	nad c320 hi does anyone know the secondary voltages for a nad c320 amp not the bee one im having a hard time finding any service information for this! thanks chris

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15th April 2008, 02:45 PM	#2
Andy L. Francis diyAudio Member Join Date: Feb 2008	NAD C320 service manual Idle rails are +46V/-46V, then power transformer is about a 60V-CT/2×30V (loaded) one.

16th April 2008, 01:13 AM	#3
Leolabs diyAudio Member Join Date: Dec 2004 Location: Bukit Mertajam	Actually it has 2 sets of voltage,one for the normal listening,one for reserve power.

16th September 2008, 02:05 PM	#4
rupsyco diyAudio Member Join Date: Sep 2008	Hi, I've got the same problem, seems like the toroidal transformer primary opened... it's strange, when checking it one of the wire connecting from the secondary to the board was cold soldered! Anyway, thanks for the info on the voltage, I had contacted Toroid international to buy a replacement but they said that was NAD proprietary and would not sell straigth to me, went to NAD website and contacted the representative in malaysia... but no response, so I was thinking about unwinding it to see if there's a fuse (you know what i mean, at times in transformers there are this in line fuses among the first windings) So before i started checking that out i wanted to see with you guys if you know if there's a fuse enbedded in the transformer. Any info is welcome, and if more details on the output voltages perhaps i can get a replacement done.

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