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zpa 0.5 help
Posted: Tue Mar 06, 2007 1:11 pm
by gixerboy
hi
i hope someone can help me get this amp fully working
just before i go any further the amp does work fine unbridged and bridged
just need some pointers on what to do next and where to find the things i need.
the pics should explain everything
cheers in advance

Posted: Tue Mar 06, 2007 11:48 pm
by 1moreamp
Well you really need to find our why your not getting the green LED's to light up. The Yellow is for low current mode.
The Red is Thermal, the yellow is overload, and the green is normal then you should have either green or yellow depending on the load the amp is seeing.
Sizzling is not a good sign but it may be the toroids making noise. Those resistors get warn in normal operation. When the colors are burnt off they are Way Too hot then.

Posted: Wed Mar 07, 2007 9:48 am
by gixerboy
ive been told b y the good doctor to renew the caps and the resistors.
any idea where i can get all these parts from
Posted: Wed Mar 07, 2007 10:34 am
by 1moreamp
Try Goggle, and then ask Doc
Digi-key, Mouser, E-bay <capacitor 12>, PG,<Phil>, The Good Doctor, That should get you started, sorry for the lag, I got some spare time at the bench, and thought of you first

Posted: Sun Mar 18, 2007 11:21 am
by gixerboy
cheers for the help got the caps out today and ordered new ones, tested the lights with dmm they all work so there must be another problem along the route to find
more testing