not sure where to post this

waffles · « **on:** 22 Mar 2010, 01:16 pm »

I have a NAD 3125 amp Im trying to fix and I need to determine the value of R319 (a resistor) If anyone has a schematic I sure could use a copy, Or if anyone has this amp, maybe you could open it up and look for me please?

TheChairGuy · « **Reply #1 on:** 22 Mar 2010, 05:41 pm »

(Free) Schematics of 3120 and 3130 are over HiFi Engine. You need to simply register over there to gain access:

http://www.hifiengine.com/manuals/nad/3120.shtml

http://www.hifiengine.com/manuals/nad/3130.shtml

The schematics may be close enough to use with your 3125 (made around the same era, I think)

Regards and good luck, John

waffles · « **Reply #2 on:** 25 Mar 2010, 07:23 am »

ok, i got the schematic but got no idea where to look on it,

TheChairGuy · « **Reply #3 on:** 25 Mar 2010, 07:54 pm »

Quote from: waffles on 25 Mar 2010, 07:23 am

ok, i got the schematic but got no idea where to look on it,

You're talkin' to the wrong guy that'll lead you to the right place on any schematic, waffles

John

MaxCast · « **Reply #4 on:** 25 Mar 2010, 08:36 pm »

perhaps this should be moved to the Lab. You may get more responses there. If that is ok with you, waffles I'll move it.

waffles · « **Reply #5 on:** 27 Mar 2010, 11:19 am »

ok by me

MaxCast · « **Reply #6 on:** 27 Mar 2010, 03:03 pm »

Moved this post to the lab for more exposure.

jb · « **Reply #7 on:** 27 Mar 2010, 04:14 pm »

Quote from: waffles on 25 Mar 2010, 07:23 am

ok, i got the schematic but got no idea where to look on it,

You can start by looking for something labeled R319 either in the schematic or the parts list, if one is included.

I don't recommend using the schematics of similar products because part numbering is not rational. They may be assigned in the sequential order of the parts in the Bill of Materials, by relative location in the schematic or PCB, or even randomly.