help:schematics for a Denon SA-3350 int amp

georgepogi69 · 28th November 2011, 02:15 AM

help!..just a newbie

i just bought this vintage Denon Sa-3350 int amp dirt cheap...i cleaned the insides, sprayed contact cleaners on the pots and recapped the power filter caps...i was test running it for about a 2 hours when i smelled something like a burnt rubber, i opened it up and the power transformer was kind of hot...turned it off...let it cool a little bit, i tried turning it back on..no dice...now no more power...there's no busted fuses, no burnt resistors...

does anyone have a schematics or service manual of this amp?...or anybody can point me in the right direction?...

mjf · 28th November 2011, 08:22 PM

hello.
can you measure the resistance of the primary windings of the transformer (with a dmm) ?

georgepogi69 · 10th February 2012, 01:26 AM

ola!

just an update, i had the transformer rewinded back home in the philippines, the secondary windings was grounded...had it fixed, now the denon SA-3350 int amp is working perfectly...

georgepogi69 · 12:29 PM

the power transformer...i had the wires labeled properly before cutting it plus so that i can solder it back correctly....costs me about $8 only for the rewinding...

its alive!...Denon SA-3350

Uploaded with ImageShack.us

thanks for the tip guys!...

28th November 2011, 02:15 AM	#1
georgepogi69 diyAudio Member Join Date: Apr 2009	help:schematics for a Denon SA-3350 int amp help!..just a newbie i just bought this vintage Denon Sa-3350 int amp dirt cheap...i cleaned the insides, sprayed contact cleaners on the pots and recapped the power filter caps...i was test running it for about a 2 hours when i smelled something like a burnt rubber, i opened it up and the power transformer was kind of hot...turned it off...let it cool a little bit, i tried turning it back on..no dice...now no more power...there's no busted fuses, no burnt resistors... does anyone have a schematics or service manual of this amp?...or anybody can point me in the right direction?...

12th February 2012, 12:25 PM	#4
georgepogi69 diyAudio Member Join Date: Apr 2009	the power transformer...i had the wires labeled properly before cutting it plus so that i can solder it back correctly....costs me about $8 only for the rewinding... its alive!...Denon SA-3350 Uploaded with ImageShack.us thanks for the tip guys!... Last edited by georgepogi69; 12th February 2012 at 12:29 PM.

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28th November 2011, 08:22 PM	#2
mjf diyAudio Member Join Date: Jan 2009 Location: upper austria/near linz	hello. can you measure the resistance of the primary windings of the transformer (with a dmm) ?

10th February 2012, 01:26 AM	#3
georgepogi69 diyAudio Member Join Date: Apr 2009	ola! just an update, i had the transformer rewinded back home in the philippines, the secondary windings was grounded...had it fixed, now the denon SA-3350 int amp is working perfectly...

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