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26th June 2009, 12:33 PM
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#1 |
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diyAudio Member
Join Date: May 2002
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Adjusting Pioneer A-27
Can anyone tell me how to adjust my A27 please.
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31st October 2010, 12:18 PM
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#2 |
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diyAudio Member
Join Date: Jul 2005
Location: D-55629 Schwarzerden
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Schematic wanted from preamp section of A27/A0012 ("A 0012")
I haven't success to find this Pioneer schematic diagram. Who knows appropriate URL's?
At some information sources is to read, that the model "A0012" (A 0012) is the same than the model "A 27" (A27) and the power amp section from power amp M25 ("M 25") Last edited by tiefbassuebertr; 31st October 2010 at 12:45 PM. |
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30th January 2011, 04:17 AM
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#3 |
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diyAudio Member
Join Date: Apr 2009
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Just reviving this thread... I have both an M-25 and A-27. I only have the SM for the M-25. I have adjusted the DC and bias to the M-25 spec but do not have any info on the power supply and protection board AWR-176-A VR's. I just recapped the the AWR-176-A board but did not swap out the original open VR's for Bourns multi turn because I did not want to chance the adjustment.
Anyone have the A-27/A-0012 manual or schematic? Or just the adjust page scan? Last edited by sgr100; 30th January 2011 at 04:22 AM. |
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30th January 2011, 10:05 AM
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#4 |
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diyAudio Member
Join Date: Jul 2005
Location: D-55629 Schwarzerden
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check out follow URLs:
Pioneer A-27 Integrated amplifier Service Manual | HiFi Engine Pioneer A-27 Repair - AudioKarma.org Home Audio Stereo Discussion Forums written also an e-mail to: micteno@tiscali.it he was a ebay seller of the auction from November last year, item number 120639965780 (also very fine jpg galerie) I have various parts of this service manual (e. g. power amp detailled and simpliefield schematic so as theorie of operation, but not the adjustment instruction; unfortunately each page is a PDF file of 1,5 M-bit). send me an email (not a PM / private message !!! - I check this area never or almost never.) go to my website for my e-mail address. The best way is the paid order of that service manual by follow address: Schaltungsdienst Lange oHG Zehrensdorfer Str. 11 12277 Berlin-Marienfelde Tel.: ++49 (0) 30 / 723 81-3 Fax: ++49 (0) 30 / 723 81-500 info@schaltungsdienst.de ask first by e-mail the cost therefore Last edited by tiefbassuebertr; 30th January 2011 at 10:08 AM. |
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