sansui au 2000 power supply voltage change over

[vic]

what test equipment do you have ?

I have a multimeter

 

[Robisme]

Does the voltage tag on the back show it can be set to multiple voltages?

Rob

 

[vic]

Does the voltage tag on the back show it can be set to multiple voltages?

Rob

yes got it going all inputs work except phono?

 

[petehall347]

best check power supply to the phono section .

 

[vic]

best check power supply to the phono section .

how to do this

 

[petehall347]

how to do this

good question . will look at schematic now .

 

[petehall347]

f-2501
pin 48 should be -35v
pin 47 should be +35
both with respect to pin 49 . black meter probe goes here .

 

[vic]

f-2501
pin 48 should be -35v
pin 47 should be +35
both with respect to pin 49 . black meter probe goes here .

ok thanks this board is tucked in I need to remove the whole front to get to it this amp is so hard to work on

 

[petehall347]

best first deoxit the switches .. if already done do it again ..

 

[vic]

best first deoxit the switches .. if already done do it again ..

ok will do that thanks

 

[vic]

best first deoxit the switches .. if already done do it again ..

Pete I did it and guess what I hear my records sounds awesome. I sprayed the shit out of all switches even the f-2051 circuit board.
Thanks again, your a legend!!!

 

[petehall347]

well done

 

[Hyperion]

well done

And to you too Pete

 

[vic]

And to you too Pete

hi, I noticed on the power F-2511 protector board there are 2 plug in points No.24 and 25 that have been d/c and someone has blocked them so you cant plug them in.
Can you tell me why this has been done and should I remove this and plug them back in? Pic attached.
thanks

 

[petehall347]

is there a free manual for the 2000 .. i am still looking at the 20000 manual that has protect board marked as f-2498 .

 

[petehall347]

where do those blue and white wires lead to ?

 

[vic]

is there a free manual for the 2000 .. i am still looking at the 20000 manual that has protect board marked as f-2498 .

they go to the transistor board where the heat sink is

 

[vic]

is there a free manual for the 2000 .. i am still looking at the 20000 manual that has protect board marked as f-2498 .

the 2498 is a filter board

 

[petehall347]

2511 is power on relay according to this manual ..

 

[petehall347]

sorry for poor resolution .. but its centre left