Schematic Needed: SUGDEN P51

fastvideo · 7th October 2010, 10:39 PM

Does anyone have a schematic/service manual for a SUGDEN P51 to share?
It keeps blowing the fuse on 1 channel.

mullardel34 · 7th October 2010, 11:01 PM

I have the schematic for the Sugden A51 (the Class-A iteration of the P51); is that close enough?

fastvideo · 8th October 2010, 02:57 AM

Thank you for help.
P51 has a different output stage, use 2N4915 and MJ2955.
Output 2N4915 and driver BCX35, BCX31 burnt.
Replaced with 2N3055, 2SB649, 2Sd669. fuse blown again, but transistors still measures good.
no burnt resistors.

Really need the schematic to troubleshoot.
thanks.

fastvideo · 8th October 2010, 07:57 PM

I am still looking the schematic/service manual for a SUGDEN P51.
Anyone has any help on this?

Thanks.

Michel · 29th October 2010, 10:48 PM

Bonjour fastvideo,

Give me your email address and I will send you the Sugden P51 schematic.

Salutations,

toyfreak · 3rd January 2011, 10:32 PM

Hi Michel

I've being looking everywhere for the p 51 schematic. I really wish you could send me a copy. I have just send you a p.m. with my email.

thanks in advance.

7th October 2010, 10:39 PM	#1
fastvideo diyAudio Member Join Date: Jan 2005 Location: montreal	Schematic Needed: SUGDEN P51 Does anyone have a schematic/service manual for a SUGDEN P51 to share? It keeps blowing the fuse on 1 channel.

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8th October 2010, 02:57 AM	#3
fastvideo diyAudio Member Join Date: Jan 2005 Location: montreal	Thank you for help. P51 has a different output stage, use 2N4915 and MJ2955. Output 2N4915 and driver BCX35, BCX31 burnt. Replaced with 2N3055, 2SB649, 2Sd669. fuse blown again, but transistors still measures good. no burnt resistors. Really need the schematic to troubleshoot. thanks.

8th October 2010, 07:57 PM	#4
fastvideo diyAudio Member Join Date: Jan 2005 Location: montreal	I am still looking the schematic/service manual for a SUGDEN P51. Anyone has any help on this? Thanks.

29th October 2010, 10:48 PM	#5
Michel diyAudio Member Join Date: Nov 2004 Location: L'Assomption, QC	Bonjour fastvideo, Give me your email address and I will send you the Sugden P51 schematic. Salutations,

3rd January 2011, 10:32 PM	#6
toyfreak diyAudio Member Join Date: Jan 2011 Location: lasalle	Hi Michel I've being looking everywhere for the p 51 schematic. I really wish you could send me a copy. I have just send you a p.m. with my email. thanks in advance.

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