hifi engine

Technics SU-X999

Hi, I have inherited this integrated amp which seems to be working fine, however the cooling fan does not appear to be running.
Does anyone know if the fan should be running continuosly or just on demand ?

if the fan needs replacing (assuming its the fan motor and not the controller) I can probably do this myself, however if anyone has undertaken this repair or has any information or tips they would be very welcome please. Does the replacement fan come as a plug and play complete component or sub components? Also any recommendation of suppliers of spares in the UK would also be very helpful.
This feels like a little project so any help would be greatly appreciated.

RDJ



Re: Technics SU-X999

After looking at the schematic it appears the fan will turn on only if the volume level from the A, B or both speaker outputs exceeds a certain level. Listen to a little Led Zeppelin at sufficient amplitude and see if the fan comes on.

Re: Technics SU-X999

Many thanks for the time and trouble researching and replying. I will try as recommended.

RDJ