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Schematic Needed: SUGDEN P51
Schematic Needed: SUGDEN P51
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Old 7th October 2010, 11:39 PM   #1
fastvideo is offline fastvideo  Canada
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Join Date: Jan 2005
Location: montreal
Default 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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Old 8th October 2010, 12:01 AM   #2
mullardel34 is offline mullardel34  United States
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Join Date: Mar 2005
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I have the schematic for the Sugden A51 (the Class-A iteration of the P51); is that close enough?
Attached Files
File Type: pdf Sugden-A51-pwr-sch.pdf (83.6 KB, 211 views)
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Old 8th October 2010, 03:57 AM   #3
fastvideo is offline fastvideo  Canada
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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.
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Old 8th October 2010, 08:57 PM   #4
fastvideo is offline fastvideo  Canada
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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.
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Old 29th October 2010, 11:48 PM   #5
Michel is offline Michel  Canada
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Bonjour fastvideo,

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

Salutations,
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Old 3rd January 2011, 11:32 PM   #6
toyfreak is offline toyfreak  Canada
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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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