Cerwin Vega A-1800 Service Manual?

Vinood · 20th January 2008, 08:30 AM

Hi I am looking for a service manual or schematic for a Cerwin Vega A-1800. The amp powers up and is very distorted (really bad) and the right channel get verywarm with zero input on an 8 OHM load. I looked arround and found someone repaired it and mixed output transistors plus substituted either a 1 Ohm or a .1 ohm (think its this) one the transistor for the output drivers. Each channel has a different one and neither is OEM so i can't tell which is correct. Current source section (think that is what it is) also seem to have some non standard components but without a schematic I can't proceed to repair it.
Can anyone assist me and provide a service manual or a schematic?
Thanks
Vin

kkosik · 3rd June 2011, 02:06 PM

Did you ever end up finding this? Let me know because I need it too :P

20th January 2008, 08:30 AM	#1
Vinood diyAudio Member Join Date: Jan 2008	Cerwin Vega A-1800 Service Manual? Hi I am looking for a service manual or schematic for a Cerwin Vega A-1800. The amp powers up and is very distorted (really bad) and the right channel get verywarm with zero input on an 8 OHM load. I looked arround and found someone repaired it and mixed output transistors plus substituted either a 1 Ohm or a .1 ohm (think its this) one the transistor for the output drivers. Each channel has a different one and neither is OEM so i can't tell which is correct. Current source section (think that is what it is) also seem to have some non standard components but without a schematic I can't proceed to repair it. Can anyone assist me and provide a service manual or a schematic? Thanks Vin

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3rd June 2011, 02:06 PM	#2
kkosik diyAudio Member Join Date: May 2011	Did you ever end up finding this? Let me know because I need it too :P

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