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Old 6th April 2006, 06:47 PM   #1
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Unhappy Noisy NAD 705

O.K So I love my NAD 705. Like everyone who has owned one can attest :"GRRRRR those bloody lights!" No worries any more for this unit. I changed to an L.E.D. setup. Runs cooler and looks really cool with blue L.E.D's

However, it's quite finicky. It crackles when turned on and I have to turn up the gain in order for it to go away.

What could be the cause? Screwy capacitors? Screwy transistors?

Any advice would be welcome.

Thanks!
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Old 6th April 2006, 07:56 PM   #2
Netlist is offline Netlist  Belgium
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Squirrel,
What do you mean by gain? Volume or the idle current?

/Hugo
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Old 6th April 2006, 08:09 PM   #3
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Oops...
yeah, volume.

I havenčt yet cracked it open as it's my only source of music right now and losing it is more a problem than the crackling noise....

so the noise goes away as I turn up the volume.
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Old 6th April 2006, 08:15 PM   #4
Netlist is offline Netlist  Belgium
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Squirrel,
Is that with a signal at the input or not?
I'm asking because the volume of the music might mask the noise.
Check if the volume pot is dirty by moving it a tiny bit in the area where the crackle is audible; without input signal.
If that is the case, a tiny amount of contact spray is your friend.
Better is to replace the pot.

/Hugo
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Old 6th April 2006, 08:24 PM   #5
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Problem's not with the pot.

It's definately a deeper problem. It only occurs with an input signal and goes away after the reciever has warmed up a little. It only sounds like a bad connection which needs to warm up to function properly...

Grrr....
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Old 6th April 2006, 08:26 PM   #6
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Squirrel,
Carefully check the solderings. Voltage regulators, power resistors, input connections.

/Hugo
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Old 7th April 2006, 01:37 AM   #7
Leolabs is offline Leolabs  Malaysia
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resolder all the solder joints will settle the problem.
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