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I have this Peavey Nashville 1000 pedal steel amp which unfortunatly made it's way down two flights of stairs on it's own !
I would like to find the schematic for the control board (picture attached) .
Story so far -
Found some cracked joins where the heatsink mounted Mosfets connected to the board and a few others that looked suspicious.
Got it going into 8 ohms tentatively through a 100w light bulb in series and it didn't draw much current but worked - unless
of course I increased the signal level and the switchmode supply got starved.
So plugged it in normally and found it worked although sounded very hard and midrangy - (don't all solid state peaveys sound like that?)
Realised that some of the standoffs between PCB and chassis also "commoned" to the ground in a few places and the chassis slightly twisted could flex easily
unless screwed down firmly in the cabinet with the long bolts and caged nuts.
Took it back - someone tried it and said it was distorted so brought it home and without trying it again decided to connect together all the ground points (that normally relied on the standoffs) with heavy duty insulated wire.
Now I cannot get any signal through the control board and am trying to avoid tracing the signal path through this
smd board and would like the schematic of same.The signal gets through the preamp board and both send/return jack sockets but doesnt get to the "digital amplifier" which is still hardly drawing any current.
The board shown in the layout that has the pre-amp out poweramp in and footswitch jack sockets plus the XLR line out
The physical board in the chassis is called Nashville 1000 Control Bd. 011400 72100590 and completely different
to the layout drawing.
The IC's on the top side are MC33025P , SN74HCT74N and an 8pin one 70413080 which maybe Peaveys 3080 IC ? !
On the reverse side normally not visible are 4 x 8 legged audio IC's smd 4560 same as the plug in type in the pre-amp.
Also 1 x 74HC 132D
1 x HC08A
1 x HTC 00
1 x NE 529D
These attached schematics seem to lack the usual id down in the bottom right hand corner. The design seems to be a huge departure from the more common Peaveys of the past apart from the traditional pre-amp.
It is supposed to deliver 300watts into 4 ohms. Any suggestions gratefully received.
I would like to find the schematic for the control board (picture attached) .
Story so far -
Found some cracked joins where the heatsink mounted Mosfets connected to the board and a few others that looked suspicious.
Got it going into 8 ohms tentatively through a 100w light bulb in series and it didn't draw much current but worked - unless
of course I increased the signal level and the switchmode supply got starved.
So plugged it in normally and found it worked although sounded very hard and midrangy - (don't all solid state peaveys sound like that?)
Realised that some of the standoffs between PCB and chassis also "commoned" to the ground in a few places and the chassis slightly twisted could flex easily
unless screwed down firmly in the cabinet with the long bolts and caged nuts.
Took it back - someone tried it and said it was distorted so brought it home and without trying it again decided to connect together all the ground points (that normally relied on the standoffs) with heavy duty insulated wire.
Now I cannot get any signal through the control board and am trying to avoid tracing the signal path through this
smd board and would like the schematic of same.The signal gets through the preamp board and both send/return jack sockets but doesnt get to the "digital amplifier" which is still hardly drawing any current.
The board shown in the layout that has the pre-amp out poweramp in and footswitch jack sockets plus the XLR line out
The physical board in the chassis is called Nashville 1000 Control Bd. 011400 72100590 and completely different
to the layout drawing.
The IC's on the top side are MC33025P , SN74HCT74N and an 8pin one 70413080 which maybe Peaveys 3080 IC ? !
On the reverse side normally not visible are 4 x 8 legged audio IC's smd 4560 same as the plug in type in the pre-amp.
Also 1 x 74HC 132D
1 x HC08A
1 x HTC 00
1 x NE 529D
These attached schematics seem to lack the usual id down in the bottom right hand corner. The design seems to be a huge departure from the more common Peaveys of the past apart from the traditional pre-amp.
It is supposed to deliver 300watts into 4 ohms. Any suggestions gratefully received.
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