Re: NAD C320BEE - Bad capacitors?



Ok! I will check the caps!...

Re: NAD C320BEE - Bad capacitors?




Hi!

Checked!
R45 38,7V
R46 -38,5V
Haven't found R447 or R449, yet.

CB47
38,5V and -38,3V

Misread the diode, it's D403.

Will locate R447 and R449.

Anything of this makes sense?...

Re: NAD C320BEE - Bad capacitors?



Read this a bit sloppy this morning and forgot about this:

Checked the emittors (and collectors) of Q41 and Q42
Q41 emittor 0V
Q42 emittor 2.5V

What I dont understand is that the soldering joints of the heatsinks the transistors are screwed in to are 37V.

The diod D043 has 4V both ways. Shouldn't diodes restrict the voltage one way?...

Re: NAD C320BEE - Bad capacitors?



Thank you for taking your time helping me!

I rechecked the voltages on the IC44 nad C420, C421 and C422.

IC44
Pin1 0V
Pin2 80mV
Pin3 0V
Pin4 1,75V (specified 2.0V)
Pin5 0V
Pin6 0,5V (output)
Pin7 2,0V (specified 2.16V)
Pin8 3,25V (specified 3,25V

C420 - 2.0V
C421 - 1,75V
C422 - 80mV

For the brownish areas please see supplied images. Is it oriented front of IC44 circuit. And looks as it is mostly around...

Re: NAD C320BEE - Bad capacitors?



I have a hard time understanding where to measure the lower supply voltages. I see them on the schematics but cannot figure where they are best measured. The L11 & L21 shows 0V on the 20V setting.

Thank you for your assistance!...

Re: NAD C320BEE - Bad capacitors?






Used this and the above service manual. [url]Https://3.bp.blogspot.com/-SShCymnrPYQ/V39T4-fWUjI/AAAAAAABXPM/2gejJGv8yrQni_-NfJ7H-7wztc_LJm2YACLcB/s1600/power%2Bamp.jpg[/url]

The plastic cover is not depressable, a fraction of a mm is all I could get it to depress with use of some (but not extensive) force.

I did do a bit of measurements, could someone help guide me in what to make of it?

The orange light means "security". I read on this french blog regarding...

Hello dear forum members!

I have a need for your assistance! I have a NAD 320BEE (with the infamous JH capacitors). I have read about them [URL="https://www.badcaps.net/forum/showthread.php?t=11400"]here on the forum[/URL] and I am now facing issues with my unit. I powered it off with the remote and I thought it sounded a bit louder than usual. And the next morning when powering on, the orange light stayed fixed - indicating something was wrong. Pulled the cord, waited and reinserted the plug and powered on with no luck. Still orange light. Unscrewed the lid. At first...

Greetings from Sweden

Dear forum members!

I am a general dreamer and I tend to collect on projects that I would like to do, if there wasn't so many other things life needed of me. I usually think and search for information during an extended period of time before jumping into a project. I most often succeed, even though it takes quite some time before commencing.

What brought me to the forum was the amber light of doom from my NAD C320BEE and I found a nice thread with pictures in this forum. My intention is to post pictures from my NAD C320BEE and...