anyone b&o penta1 schematic?

christophertay · 16th September 2004, 03:53 PM

Hi, does anyone has the schematic for b&o penta 1 amplifier?

JensRasmussen · 17th September 2004, 04:47 AM

\Jens

christophertay · 17th September 2004, 05:04 AM

Hey Jens,

thanks for the diagram. Do you also have the parts list?

chris

JensRasmussen · 17th September 2004, 07:04 AM

Hi,

I have the complete service manual, but all values are on the schematic.

\Jens

OliverD · 17th September 2004, 07:04 AM

In case you need to replace the output devices, under no circumstance try to buy original Toshiba 2SA1302/2SC3281! They are long gone and all you get is fakes.

JensRasmussen · 17th September 2004, 07:53 AM

They are replaced by 2sc5200 and 2sa1943

\Jens

djk · 17th September 2004, 09:01 AM

No wonder the Penta sounded so bad, LF353s and polarized electrolytics in the signal path.

christophertay · 29th September 2004, 10:51 AM

tried changing the output amp. but still no sound.
amyway the problem of my penta.. first there is no sound when turn on, two it does not switch to standby mode when the is no signal.
can anyone help.

thanks

16th September 2004, 03:53 PM	#1
christophertay diyAudio Member Join Date: Sep 2004 Location: singapore	anyone b&o penta1 schematic? Hi, does anyone has the schematic for b&o penta 1 amplifier?

17th September 2004, 05:04 AM	#3
christophertay diyAudio Member Join Date: Sep 2004 Location: singapore	thanks Hey Jens, thanks for the diagram. Do you also have the parts list? chris

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17th September 2004, 04:47 AM	#2
JensRasmussen diyAudio Member Join Date: Jul 2002 Location: Denmark - Jutland	\Jens

17th September 2004, 07:04 AM	#4
JensRasmussen diyAudio Member Join Date: Jul 2002 Location: Denmark - Jutland	Hi, I have the complete service manual, but all values are on the schematic. \Jens

17th September 2004, 07:04 AM	#5
OliverD diyAudio Member Join Date: Nov 2002 Location: Germany	In case you need to replace the output devices, under no circumstance try to buy original Toshiba 2SA1302/2SC3281! They are long gone and all you get is fakes.

17th September 2004, 07:53 AM	#6
JensRasmussen diyAudio Member Join Date: Jul 2002 Location: Denmark - Jutland	They are replaced by 2sc5200 and 2sa1943 \Jens

17th September 2004, 09:01 AM	#7
djk diyAudio Member Join Date: Feb 2001 Location: USA	No wonder the Penta sounded so bad, LF353s and polarized electrolytics in the signal path.

29th September 2004, 10:51 AM	#8
christophertay diyAudio Member Join Date: Sep 2004 Location: singapore	tried changing the output amp. but still no sound. amyway the problem of my penta.. first there is no sound when turn on, two it does not switch to standby mode when the is no signal. can anyone help. thanks