TEAC AX-750 help needed

[FUSION X16XE]

ahhhhhhhh my amp has decided to go capput is there anyone on here that may know what needs replacing its the left channel its jsut realy low volume compared to the right and is realy high pitched compared to the right any ideas would be great i love this amp, it does take a bit of a beating tho lol :thumb:

[FUSION X16XE]

bttt

[jof2k8]

if i was you id buy a new amp i could end up costing a new amp getting it diagnozed and fixed. iv had it happen to me but since ive added fans to my amp rack iv not had a problem since.