av800 problems

joojoo0065 · 16th July 2010, 10:12 AM

when the start av800,R57 burn and dameged but before r57 damegd av1000 good working. please help me!!

shravanth · 22nd December 2011, 03:42 PM

hello
mine R4 is melting

firechief · 22nd December 2011, 04:32 PM

Please tell us more about the device that you are having trouble with. What is it exactly?
When asking for help, please provide more information.

radu8982 · 22nd December 2011, 04:35 PM

R57 burns picose a capacitor is put on backwards i think is a 220uf/160v or 100v

firechief · 22nd December 2011, 04:51 PM

OK by george I'v got it!
build NEW AV800 / AV1000 MOSFET AMP IRFP240 IRFP9240
I'll bet if I use the search tool I can even find a schematic.

shravanth · 23rd December 2011, 02:26 AM

actualy i have done pcb and mounted all components
and i on the driver board when i on i have tested
R1,2-3.0v
R3-25v

what i have to do please help me any one

whizgeek · 8th January 2012, 08:10 PM

Q3, Q4 wrong pinout or put wrong way around

16th July 2010, 10:12 AM	#1
joojoo0065 diyAudio Member Join Date: Jul 2010	av800 problems when the start av800,R57 burn and dameged but before r57 damegd av1000 good working. please help me!!

22nd December 2011, 04:32 PM	#3
firechief diyAudio Member Join Date: Sep 2008 Location: Near Seattle Wa	Please tell us more about the device that you are having trouble with. What is it exactly? When asking for help, please provide more information. __________________ "You can keep your insurance baby nothing is guaranteed" -Tom Petty

22nd December 2011, 04:51 PM	#5
firechief diyAudio Member Join Date: Sep 2008 Location: Near Seattle Wa	OK by george I'v got it! build NEW AV800 / AV1000 MOSFET AMP IRFP240 IRFP9240 I'll bet if I use the search tool I can even find a schematic. __________________ "You can keep your insurance baby nothing is guaranteed" -Tom Petty

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22nd December 2011, 03:42 PM	#2
shravanth diyAudio Member Join Date: Dec 2011 Location: hyderabad	hello mine R4 is melting

22nd December 2011, 04:35 PM	#4
radu8982 diyAudio Member Join Date: Nov 2009	R57 burns picose a capacitor is put on backwards i think is a 220uf/160v or 100v

23rd December 2011, 02:26 AM	#6
shravanth diyAudio Member Join Date: Dec 2011 Location: hyderabad	actualy i have done pcb and mounted all components and i on the driver board when i on i have tested R1,2-3.0v R3-25v what i have to do please help me any one

8th January 2012, 08:10 PM	#7
whizgeek diyAudio Member Join Date: Feb 2010	Q3, Q4 wrong pinout or put wrong way around

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