Schematics for Pioneer SX-434

wising · 1st July 2006, 08:40 PM

Hello.

Im searching for the schematics or service manual for Pioneer SX-434, maybee anybody here got one or knows where to get one?

regards / Wising

oldsthunder · 2nd July 2006, 07:13 PM

I may have a schematic fo an sx-535. Would that be of any help?

Leolabs · 3rd July 2006, 02:39 AM

Hi wising,any problem with the Pioneer???

PhantomBox · 23rd September 2009, 12:10 PM

No output from left channel on my Pioneer SX434. Well, I got the schematic now. On the AWK-034 (power amp section) I replaced Q16 (2SC1318), Q20 (2SD131) and Q22 (2SB507) - all transistors went short - as well as R73 (18ohm 1/2W) - burnt out. But still no output.
Am I missing something? Any ideas?

zeonrider · 23rd September 2009, 12:33 PM

Do you check R 83/85 & R 79/81?

Regards zeoN_Rider

PhantomBox · 23rd September 2009, 03:31 PM

Just finished checking. R83 / R85 and R79 / R81 are fine. 2 pins on Q16 were inverted (wonder how it could have happened???).
But still no sound on the left channel. Now I've got a very loud hum.

1st July 2006, 08:40 PM	#1
wising diyAudio Member Join Date: Oct 2005 Location: Sweden	Schematics for Pioneer SX-434 Hello. Im searching for the schematics or service manual for Pioneer SX-434, maybee anybody here got one or knows where to get one? regards / Wising

23rd September 2009, 12:33 PM	#5
zeonrider diyAudio Member Join Date: Mar 2004 Location: Belgrade RS	Hi! Do you check R 83/85 & R 79/81? Regards zeoN_Rider

23rd September 2009, 03:31 PM	#6
PhantomBox diyAudio Member Join Date: Jan 2008	Schematics for Pioneer SX-434 Just finished checking. R83 / R85 and R79 / R81 are fine. 2 pins on Q16 were inverted (wonder how it could have happened???). But still no sound on the left channel. Now I've got a very loud hum.

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2nd July 2006, 07:13 PM	#2
oldsthunder diyAudio Member Join Date: Jun 2006	I may have a schematic fo an sx-535. Would that be of any help?

3rd July 2006, 02:39 AM	#3
Leolabs diyAudio Member Join Date: Dec 2004 Location: Bukit Mertajam	Hi wising,any problem with the Pioneer???

23rd September 2009, 12:10 PM	#4
PhantomBox diyAudio Member Join Date: Jan 2008	No output from left channel on my Pioneer SX434. Well, I got the schematic now. On the AWK-034 (power amp section) I replaced Q16 (2SC1318), Q20 (2SD131) and Q22 (2SB507) - all transistors went short - as well as R73 (18ohm 1/2W) - burnt out. But still no output. Am I missing something? Any ideas?

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