Hafler Pro-5000 Service Manuals??

[zeemac]

Hey y'all,
I bought a bunch of Hafler Pro-5000 amps and they're starting to die on me. I was wondering if anyone has/knows where to get an owners manual or repair schematic for the Hafler Pro-5000 amp?

Thanks
-ZeeMac

[ddavid57]

did you ever have any luck finding this manual?
I have 8 of these amps and 5 have problems thanks

[HAUDIO]

Will revive this old thread to see if anyone has any experience and hopefully information (manuals?) about the Hafler Pro 5000 amplifier.

I've found no useful information about this particular model, no operators manuals or service manuals. The amp is not even mentioned on what's left of the Hafler web site. The amp is in working condition and sounds beautifully but runs very hot.

Previous posters mention several amp failures and I would bet that they are due to overheating. I took off the cover of the case and found a rather inconvenient cooling layout for a unit designed to be rack mounted. Air comes in through the front bottom of the case and is brought to the top of the case (the other side of the Printed Circuit Board) by a large fan in the middle back of the PCB, then the air get's out through vents on the side of the case after passing through all of the components in the top of the PCB.

The problem I see with that type of cooling is that in the hot air circulates inside the chassis for too long and when rack mounted, the sides of the rack kind of block the air flow

Is there any way of improving the cooling in this amp?

Any help will be greatly appreciated.

HAudio.

[djoffe]

If you send me a PM I can send you a pdf of the manual. It is too large to upload here.

[HAUDIO]

Originally Posted by djoffe

If you send me a PM I can send you a pdf of the manual. It is too large to upload here.

djoffe you got a PM , Thanks.