NAD C326BEE right channel dead

Lynyrd

Member
2020-01-19 5:59 pm
France
Hello.
The right channel of my NAD C326BEE is dead.
Main amplifier works fine on two channels.
Pre amp with headphones or speakers no right channel.
No music,but very great cracks.
I m not ingeneer,but I like electronics.
I have a multimeter,and I ordered audio signal tracer.
Help me please for repair.

It s the file of right channel cracking.

Regards
 

Attachments

  • Recording #2.mp4
    177 KB

U230421

Disabled Account
2017-02-07 1:54 pm
Follow the red line.
 

Attachments

  • NADC326BEE_1.PNG
    NADC326BEE_1.PNG
    506.7 KB · Views: 228
  • NADC326BEE_2.PNG
    NADC326BEE_2.PNG
    249 KB · Views: 218
  • NADC326BEE_3.PNG
    NADC326BEE_3.PNG
    269.8 KB · Views: 220
Hello.
I recived my audio tracer.
The signal stop and cracks on C320.
I verified​ out module,signal stop on collector of Q359.On base and emitter signal is ok
I replaced Q359 it's ok,good signal on collector,good signal not cracked on C320 but 2 min later the same situation
Nothing on C320, nothing after collector of Q359.....
18v ok.
I desoldered the q359 on little China DAC 5V it's was marked G1....i think it's it the same MMBT5550LT1G.
Regards