Luxman A-331

[Bill71]

Hi ,
i replaced some Elna RE2 capacitors with Elna Silmic II,
could someone help me locate the signal capacitors of the Luxman A-331 amplifier

thank you

 

[ostripper]

Such a simple amp - but luxman quality.

OS

 

[Bill71]

thanks, but i can't find the signal capacitors from the manual service. Can you tell me what they are? thank you

 

[ostripper]

Just the amp?

C501,502 - C511,512 ...main amp. C521 - 524 are V/I limiter caps.
Preamp , all of the 4.7uF and 22uF between the op-amps.

Most likely , all the pF caps are ceramic and good.
Edit if you think those are bad , most of your big ones - main power supply and opamp supplies
are on the edge , as well.
OS

 

[duncan2]

Actual series SIGNAL capacitors ?--- then as Ostripper says --

C501 and C502 --dump the electroyltics replace with good plastic film --that is the number one major change --no I don't agree with D.Self .

 

[Bill71]

thank you very much for the replies.
C501,502 - C511,512 are all the signal capacitors of the amplifier and must be replaced with film capacitors.
Are the 47uF capacitors C539-C540 - C541 C542 signal on the preamp?
Are the C534 and C535 signal capacitors on the preamp?
thanks for your patience but I'm not an expert

 

[duncan2]

On the schematic I am looking at relevant to the preamp section I don't see those capacitors but I see

C203 and C204 in the phono stage input and C215 and C216 at the output .

 

[Bill71]

sorry Ostripper, I didn't understand which 4.7 and 22uF preamp capacitors I need to replace (for example with Silimic II). Can you please indicate number C ...

C534 C535; C539-C540; C541 C542 are signal capacitors?
thank you all

 

[Bill71]

can someone please give me an answer
thank you very much