sx 1250 Stabilizer voltage issue

Discussion in 'Pioneer Audio' started by sendust, Jul 3, 2018.

  1. sendust

    sendust Music feeds the soul Subscriber

    Messages:
    736
    Hi guys, i picked up a sx 1250 a while back and it had issues on right channel, it would cut out frequently. I cleaned all connections and pots, also worked switches well, no change. I decided to recap the unit . since recapping right channel is working well. after recap i reset the two power amplifiers VR1to 0 and VR2 to 65 mv, while trying to set stabilizer i was able to set VR1 to 65 mv but on VR2 i was only able to set to - 48 , any thought son this.
     

     

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  2. kevzep

    kevzep Its all about the Music Subscriber

    Is the Stabiliser original or has it been rebuilt?

    I had some similar problems with one during a rebuild last week....

    It should also be +65 and -65VDC not mV, if it is mV you have some real issues..
     
  3. sendust

    sendust Music feeds the soul Subscriber

    Messages:
    736
    Sorry it is VDC, the caps have been replaced nothing else
     
  4. kevzep

    kevzep Its all about the Music Subscriber

    It sounds like this might have been the problem all along, if these voltages are off, the unit will go into protection.

    Search SX1250 BOM and compile a list to completely rebuild the stabiliser.
    Just replacing caps in these amps is not enough these days, especially that particular board.
    You need to replace all the transistors, diodes, and Zeners, I also replaced some of the resistors as well, three I think, the most stressed ones, and of course the two trimmers
    Once you have done this you'll be set and good to go. If there is an issue after that, I will know exactly what the problem will be.
     
  5. sendust

    sendust Music feeds the soul Subscriber

    Messages:
    736
    thanks will do
     
  6. sendust

    sendust Music feeds the soul Subscriber

    Messages:
    736
    The list i see is power supply stabilizer, is this correct? and is this list mouser or digikey
     

     

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  7. kevzep

    kevzep Its all about the Music Subscriber

    I think its the AWR106....the BOM's are Mouser.

    I had a thread up the other day when I was working on the one I have here but I cant find it at the moment...
     
  8. zebulon1

    zebulon1 Getting behind on work. I need help? Subscriber

    Messages:
    4,789
    Location:
    Las Vegas Nevada
    From MTF's post, cira 2013.

    1. Ok, here's a raw updated list, with ALMOST EVERYTHING POSSIBLE - you WILL NOT need all this. Every correction and stock check I can do and think of has been done.

      I'm trying something different, making it easier to get this into a spreadsheet.
      I am posting it as a comma delimited text block, where the commas are the field delimiters. a .csv file - in text...

      DO NOT BLINDLY COPY AND PASTE THE PARTS LIST, YOU WILL OVERSPEND BY AT LEAST TWO EXTRA RELAYS ($20) AND SOME OTHER STUFF.

      sx-1250,power,supply,stabilizer,ok,,,,,
      sx-1250,awr-106,c1,220,80,cea,,220,100,647-UPW2A221MHD
      sx-1250,awr-106,c2,220,80,cea,,220,100,647-UPW2A221MHD
      sx-1250,awr-106,C5,47,35,cea,,47,35,647-UPW1V470MED
      sx-1250,awr-106,C6,47,35,cea,,47,35,647-UPW1V470MED
      sx-1250,awr-106,C7,22,50,cea,,22,50,647-UPW1H220MDD
      sx-1250,awr-106,C8,22,50,cea,,22,50,647-UPW1H220MDD
      sx-1250,awr-106,C9,100,35,cea,,100,50,647-UPW1H101MPD
      sx-1250,awr-106,C10,100,35,cea,,100,50,647-UPW1H101MPD
      sx-1250,awr-106,C11,47,80,cea,,47,100,647-UPW2A470MPD
      sx-1250,awr-106,C12,47,80,cea,,47,100,647-UPW2A470MPD
      sx-1250,awr-106,C13,1000,25,ceb,,1000,35,647-TVX1V102MCD
      sx-1250,awr-106,C15,47,10,cea,,47,10,647-UPW1A470MDD6
      sx-1250,awr-106,C16,22,10,cea,,22,10,647-UPW1A220MDD
      sx-1250,awr-106,C17,220,16,cea,,220,25,647-UPW1E221MPD1TD
      sx-1250,awr-106,C18,47,10,cea,,47,10,647-UPW1A470MDD6
      sx-1250,awr-106,C19,47,10,cea,,47,10,647-UPW1A470MDD6
      sx-1250,awr-106,q1,2sd313,pass +65,,,,,512-KSC2073TU
      sx-1250,awr-106,q2,2sc869,darl,,,,,512-KSC2383YTA
      sx-1250,awr-106,q3,2sc1318,err-amp,,,,,512-KSC1845FTA
      sx-1250,awr-106,q4,2sc1384,pass +25,,,,,512-KSC2690AYS
      sx-1250,awr-106,q5,2sb507,pass -65,,,,,512-KSA940TU
      sx-1250,awr-106,q6,2sa628,darl,,,,,512-KSA1013YBU
      sx-1250,awr-106,q7,2sa720,err-amp,,,,,512-KSA992FBU
      sx-1250,awr-106,q8,2sa684,pass -25,,,,,512-KSA1220AYS
      sx-1250,awr-106,q9,2sd325,pass +13,,,,,512-KSC2073TU
      sx-1250,awr-106,q10,2sc945,darl,,,,,512-KSC2383YTA
      sx-1250,awr-106,q11,2sc945,err-amp,,,,,512-KSC1845FTA
      sx-1250,awr-106,q12,2sd325,pass +5.5 ,,,,,512-KSC2073TU
      sx-1250,awr-106,q13,2sc945,darl,,,,,512-KSC2383YTA
      sx-1250,awr-106,d1,wz-240,,,,,,512-1N5252B
      sx-1250,awr-106,d3,wz-240,,,,,,512-1N5252B
      sx-1250,awr-106,d5,wz-061,,,,,,512-1N5234B
      sx-1250,awr-106,d2,1s2473,,,,,,512-1n4148
      sx-1250,awr-106,d4,1s2473,,,,,,512-1n4148
      sx-1250,awr-106,vr1,4.7k,1 turn,,,,,652-3386H-1-502LF
      sx-1250,awr-106,vr2,4.7k,1 turn,,,,,652-3386H-1-502LF
      sx-1250,awr-106,R13,680,2W mox,,,,,660-MO2C681J
      sx-1250,awr-106,R14,1.5K,2W mox,,,,,660-MO2C152J
      sx-1250,awr-106,R18,100,2W mox,,,,,660-MO2C101J
      ,,,,,,,,,
      ,,,,,,,,,
      ,,,,,,,,,
      sx-1250,power,amp,left,ok,,,,,
      sx-1250,awh-048l,C2,10,16,ceanl,,10,50,647-UKL1H100KDDANA
      sx-1250,awh-048l,C5,220,16,ceanl,,220,16,647-UKL1C221KPDANA
      sx-1250,awh-048l,C11,0.22,10,csza,,0.22,50,667-ECQ-V1H224JL
      sx-1250,awh-048l,C15,470,80,ACH-038,,470,100,647-UPW2A471MHD
      sx-1250,awh-048l,C16,470,80,ACH-038,,470,100,647-UPW2A471MHD
      sx-1250,awh-048l,q1,2sa750,,,,,,512-KSA992FBU
      sx-1250,awh-048l,q2,2sa750,,,,,,512-KSA992FBU
      sx-1250,awh-048l,q3,2sc1439,,,,,,512-KSC3503dstu
      sx-1250,awh-048l,q4,2sc1439,,,,,,512-KSC3503dstu
      sx-1250,awh-048l,q5,2sa858,,,,,,512-KSA1381ESTU
      sx-1250,awh-048l,q6,2sa858,,,,,,512-KSA1381ESTU
      sx-1250,awh-048l,q7,2sc1904,,,,,,512-KSC3503dstu
      sx-1250,awh-048l,q8,2sa899,,,,,,512-KSA1381ESTU
      sx-1250,awh-048l,q9,2sd610,,,,,,512-KSC2073TU
      sx-1250,awh-048l,q10,2sb630,,,,,,512-KSA940TU
      sx-1250,awh-048l,q11,2sc869,,,,,,512-KSC1845FTA
      sx-1250,awh-048l,vr1,500 ohms,offset,25 turns,,,,652-3296P-1-501LF
      sx-1250,awh-048l,vr2,500 ohms,idle,1 turn,,,,652-3386H-1-501LF
      ,,,,,,,,,
      ,,,,,,,,,
      ,,,,,,,,,
      sx-1250,power,amp,right,ok,,,,,
      sx-1250,awh-048r,C2,10,16,ceanl,,10,50,647-UKL1H100KDDANA
      sx-1250,awh-048r,C5,220,16,ceanl,,220,16,647-UKL1C221KPDANA
      sx-1250,awh-048r,C11,0.22,10,csza,,0.22,50,667-ECQ-V1H224JL
      sx-1250,awh-048r,C15,470,80,ACH-038,,470,100,647-UPW2A471MHD
      sx-1250,awh-048r,C16,470,80,ACH-038,,470,100,647-UPW2A471MHD
      sx-1250,awh-048r,q1,2sa750,,,,,,512-KSA992FBU
      sx-1250,awh-048r,q2,2sa750,,,,,,512-KSA992FBU
      sx-1250,awh-048r,q3,2sc1439,,,,,,512-KSC3503dstu
      sx-1250,awh-048r,q4,2sc1439,,,,,,512-KSC3503dstu
      sx-1250,awh-048r,q5,2sa858,,,,,,512-KSA1381ESTU
      sx-1250,awh-048r,q6,2sa858,,,,,,512-KSA1381ESTU
      sx-1250,awh-048r,q7,2sc1904,,,,,,512-KSC3503dstu
      sx-1250,awh-048r,q8,2sa899,,,,,,512-KSA1381ESTU
      sx-1250,awh-048r,q9,2sd610,,,,,,512-KSC2073TU
      sx-1250,awh-048r,q10,2sb630,,,,,,512-KSA940TU
      sx-1250,awh-048l,q11,2sc869,,,,,,512-KSC1845FTA
      sx-1250,awh-048r,vr1,500 ohms,offset,25 turns,,,,652-3296P-1-501LF
      sx-1250,awh-048r,vr2,500 ohms,idle,1 turn,,,,652-3386H-1-501LF
      ,,,,,,,,,
      ,,,,,,,,,
      ,,,,,,,,,
      ,,,,,,,,,
      ,,,,,,,,,
      sx-1250,protection,ok,,,,,,,
      sx-1250,awm-091,C1,470,6,cea,,470,10,647-UPW1C471MPD6
      sx-1250,awm-091,C2,470,6,cea,,470,10,647-UPW1C471MPD6
      sx-1250,awm-091,C3,4.7,25,cea,,4.7,50,647-UPW1H4R7MDD
      sx-1250,awm-091,C4,100,16,cea,,100,16,647-UPW1C101MED
      sx-1250,awm-091,C5,100,50,cea,,100,50,647-UPW1H101MPD
      sx-1250,awm-091,C6,100,50,cea,,100,50,647-UPW1H101MPD
      sx-1250,awm-091,q1,2sc945,,diff,,,,512-KSC1845FTA
      sx-1250,awm-091,q2,2sc945,,diff,,,,512-KSC1845FTA
      sx-1250,awm-091,q3,2sa733,,or logic,,,,512-KSA992FBU
      sx-1250,awm-091,q4,2sc945,,current dump,,,,512-KSC2383YTA
      sx-1250,awm-091,q5,2sc1166,,relay drive,,,,512-KSC2690AYS
      sx-1250,awm-091,q6,2sc1166,,v reg,,,,512-KSC2690AYS
      sx-1250,awm-091,s1,asr-010,prot relay,,,,,653-my4-02dc24
     
  9. zebulon1

    zebulon1 Getting behind on work. I need help? Subscriber

    Messages:
    4,789
    Location:
    Las Vegas Nevada
    continued from last post

    ,,,,,,,,,
    sx-1250,tuner,ok,,,,,,,
    sx-1250,awe-068,C4,220,16,cea,,220,16,647-UPW1C221MPD
    sx-1250,awe-068,C10,0.47,50,cea,,0.47,50,667-ECQ-V1H474JL
    sx-1250,awe-068,C23,10,16,csza,,10,50,647-UKL1H100KDDANA
    sx-1250,awe-068,C24,47,16,ceanl,,47,25,647-UKL1V470MPDANA
    sx-1250,awe-068,C25,470,16,cea,,470,25,647-UPW1E471MPD
    sx-1250,awe-068,C26,4.7,25,ceanl,,4.7,25,647-UKL1E4R7KDDANA
    sx-1250,awe-068,C28,10,16,csza,,10,50,647-UKL1H100KDDANA
    sx-1250,awe-068,C29,10,16,csza,,10,50,647-UKL1H100KDDANA
    sx-1250,awe-068,C32,100,16,cea,,100,16,647-UPW1C101MED
    sx-1250,awe-068,C33,1,50,cea,,1,50,647-UPW1H010MDD
    sx-1250,awe-068,C35,0.1,35,csza,,0.1,50,598-DSF050J
    sx-1250,awe-068,C36,1,25,ceanl,,1,50,647-UKL1H010KDDANA
    sx-1250,awe-068,C38,1,25,ceanl,,1,50,647-UKL1H010KDDANA
    sx-1250,awe-068,C41,1,10,csza,,1,50,647-UKL1H010KDDANA
    sx-1250,awe-068,C42,3.3,10,csza,,3.3,50,647-UKL1H3R3KDDANA
    sx-1250,awe-068,C43,0.22,25,csza,,0.22,50,667-ECQ-V1H224JL
    sx-1250,awe-068,C48,4.7,25,ceanl,,4.7,25,647-UKL1E4R7KDDANA
    sx-1250,awe-068,C56,10,16,csza,,10,50,647-UKL1H100KDDANA
    sx-1250,awe-068,C59,0.1,35,csza,,0.1,50,598-DSF050J
    sx-1250,awe-068,C60,220,16,cea,,220,16,647-UPW1C221MPD
    sx-1250,awe-068,C61,47,16,ceanl,,47,25,647-UKL1V470MPDANA
    ,,,,,,,,,
    ,,,,,,,,,
    sx-1250,equalizer,amp,ok,,,,,,
    sx-1250,awf-021,C1,1,100,mylar,ecq,,,
    sx-1250,awf-021,C2,1,100,mylar,ecq,,,
    sx-1250,awf-021,C11,470,6,cea,,470,10,647-UPW1C471MPD6
    sx-1250,awf-021,C12,470,6,cea,,470,10,647-UPW1C471MPD6
    sx-1250,awf-021,C17,3.3,50,ceanl,,3.3,50,647-UKL1H3R3KDDANA
    sx-1250,awf-021,C18,3.3,50,ceanl,,3.3,50,647-UKL1H3R3KDDANA
    sx-1250,awf-021,C25,22,16,csza,,22,25,647-UKL1E220MDDANA
    sx-1250,awf-021,C26,22,16,csza,,22,25,647-UKL1E220MDDANA
    sx-1250,awf-021,C27,220,63,cea,,220,100,647-UPW2A221MHD
    sx-1250,awf-021,C28,220,63,cea,,220,100,647-UPW2A221MHD
    sx-1250,awf-021,C29,100,35,cea,,100,35,647-UPW1V101MPD
    sx-1250,awf-021,C30,22,16,csza,,22,25,647-UKL1E220MDDANA
    sx-1250,awf-021,C31,22,16,csza,,22,25,647-UKL1E220MDDANA
    sx-1250,awf-021,C32,100,35,cea,,100,35,647-UPW1V101MPD
    sx-1250,awf-021,q1,2sa726,ltp-L,,,,,512-KSA992FBU
    sx-1250,awf-021,q2,2sa726,ltp-R,,,,,512-KSA992FBU
    sx-1250,awf-021,q3,2sa726,ltp-L,,,,,512-KSA992FBU
    sx-1250,awf-021,q4,2sa726,ltp-R,,,,,512-KSA992FBU
    sx-1250,awf-021,q5,2sc1775,vas-L,,,,,512-KSC1845FTA
    sx-1250,awf-021,q6,2sc1775,vas-R,,,,,512-KSC1845FTA
    sx-1250,awf-021,q7,2sc1775,out dvr-L,,,,,512-KSC1845FTA
    sx-1250,awf-021,q8,2sc1775,out dvr-R,,,,,512-KSC1845FTA
    sx-1250,awf-021,q9,2sa872,out dvr-L,,,,,512-KSA992FBU
    sx-1250,awf-021,q10,2sa872,out dvr-R,,,,,512-KSA992FBU
    sx-1250,awf-021,q11,2sc1735,pass +49,,,,,512-KSC2690AYS
    sx-1250,awf-021,q12,2sc869,err amp +,,,,,512-KSC1845FTA
    sx-1250,awf-021,q13,2sa850,pass -49,,,,,512-KSA1220AYS
    sx-1250,awf-021,q14,2sa628,err amp -,,,,,512-KSA992FBU
    sx-1250,awf-021,d5,wz-240,,,,,,512-1N5252B
    sx-1250,awf-021,d6,wz-240,,,,,,512-1N5252B
    ,,,,,,,,,
    sx-1250,flat,amp,ok,,,,,,
    sx-1250,AWG-042,C7,330,63,cea,,330,63,647-UPW1J331MHD
    sx-1250,AWG-042,C8,330,63,cea,,330,63,647-UPW1J331MHD
    sx-1250,AWG-042,C9,22,16,csza,,22,25,647-UKL1E220MDDANA
    sx-1250,AWG-042,C10,22,16,csza,,22,25,647-UKL1E220MDDANA
    sx-1250,AWG-042,C11,22,16,csza,,22,25,647-UKL1E220MDDANA
    sx-1250,AWG-042,C12,22,16,csza,,22,25,647-UKL1E220MDDANA
    sx-1250,AWG-042,C21,100,10,ceanl,,100,25,647-UKL1E101KPDANA
    sx-1250,AWG-042,C22,100,10,ceanl,,100,25,647-UKL1E101KPDANA
    sx-1250,AWG-042,C27,220,16,ceanl,,220,16,647-UKL1C221KPDANA
    sx-1250,AWG-042,C28,220,16,ceanl,,220,16,647-UKL1C221KPDANA
    sx-1250,AWG-042,C31,330,35,cea,,330,50,647-UPW1H331MPD
    sx-1250,AWG-042,C32,330,35,cea,,330,50,647-UPW1H331MPD
    sx-1250,AWG-042,q1,2sc1775,,,,,,512-KSC1845FTA
    sx-1250,AWG-042,q2,2sc1775,,,,,,512-KSC1845FTA
    sx-1250,AWG-042,q3,2sa872,,,,,,512-KSA992FBU
    sx-1250,AWG-042,q4,2sa872,,,,,,512-KSA992FBU
    sx-1250,AWG-042,q5,2sk30,,,,,,
    sx-1250,AWG-042,q6,2sk30,,,,,,
    sx-1250,AWG-042,q7,2sa725,,,,,,512-KSA992FBU
    sx-1250,AWG-042,q8,2sa725,,,,,,512-KSA992FBU
    ,,,,,,,,,
    ,,,,,,,,,
    ,,,,,,,,,
    sx-1250,control,amp,ok,,,,,,
    sx-1250,AWG-041,C1,4.7,25,csza,,4.7,25,647-UKL1E4R7KDDANA
    sx-1250,AWG-041,C2,4.7,25,csza,,4.7,25,647-UKL1E4R7KDDANA
    sx-1250,AWG-041,C3,4.7,25,csza,,4.7,25,647-UKL1E4R7KDDANA
    sx-1250,AWG-041,C4,4.7,25,csza,,4.7,25,647-UKL1E4R7KDDANA
    sx-1250,AWG-041,C11,2.2,25,ceanl,,2.2,50,647-UKL1H2R2MDDANA
    sx-1250,AWG-041,C12,2.2,25,ceanl,,2.2,50,647-UKL1H2R2MDDANA
    sx-1250,AWG-041,C13,2.2,25,ceanl,,2.2,50,647-UKL1H2R2MDDANA
    sx-1250,AWG-041,C14,2.2,25,ceanl,,2.2,50,647-UKL1H2R2MDDANA
    sx-1250,AWG-041,C17,100,10,ACH-312,,100,16,647-UPW1C101MED
    sx-1250,AWG-041,C18,100,10,ACH-312,,100,16,647-UPW1C101MED
    sx-1250,AWG-041,C19,2.2,25,ceanl,,2.2,50,647-UKL1H2R2MDDANA
    sx-1250,AWG-041,C20,2.2,25,ceanl,,2.2,50,647-UKL1H2R2MDDANA
    sx-1250,AWG-041,C27,2.2,25,ceanl,,2.2,50,647-UKL1H2R2MDDANA
    sx-1250,AWG-041,C28,2.2,25,ceanl,,2.2,50,647-UKL1H2R2MDDANA
    sx-1250,AWG-041,C29,2.2,25,ceanl,,2.2,50,647-UKL1H2R2MDDANA
    sx-1250,AWG-041,C30,2.2,25,ceanl,,2.2,50,647-UKL1H2R2MDDANA
    sx-1250,AWG-041,C33,100,10,ACH-312,,100,16,647-UPW1C101MED
    sx-1250,AWG-041,C34,100,10,ACH-312,,100,16,647-UPW1C101MED
    sx-1250,AWG-041,C35,2.2,25,ceanl,,2.2,50,647-UKL1H2R2MDDANA
    sx-1250,AWG-041,C36,2.2,25,ceanl,,2.2,50,647-UKL1H2R2MDDANA
    sx-1250,AWG-041,C37,100,16,ACH-311,,100,16,647-UPW1C101MED
    sx-1250,AWG-041,C38,100,16,ACH-311,,100,16,647-UPW1C101MED
    sx-1250,AWG-041,C39,100,16,ACH-311,,100,16,647-UPW1C101MED
    sx-1250,AWG-041,C40,100,16,ACH-311,,100,16,647-UPW1C101MED
    sx-1250,AWG-041,C43,10,25,csza,,10,50,647-UKL1H100KDDANA
    sx-1250,AWG-041,C44,10,25,csza,,10,50,647-UKL1H100KDDANA
    sx-1250,AWG-041,q1,2sc1312,,,,,,512-KSC1845FTA
    sx-1250,AWG-041,q2,2sc1312,,,,,,512-KSC1845FTA
    sx-1250,AWG-041,q3,2sc1312,,,,,,512-KSC1845FTA
    sx-1250,AWG-041,q4,2sc1312,,,,,,512-KSC1845FTA
    ,,,,,,,,,
    ,,,,,,,,,
    sx-1250,filter,amp,ok,,,,,,
    sx-1250,AWM-089,C3,4.7,25,csza,,4.7,25,647-UKL1E4R7KDDANA
    sx-1250,AWM-089,C6,10,25,csza,,10,50,647-UKL1H100KDDANA
    sx-1250,AWM-089,c9,4.7,25,csza,,4.7,25,647-UKL1E4R7KDDANA
    sx-1250,AWM-089,c12,10,25,csza,,10,50,647-UKL1H100KDDANA
    sx-1250,AWM-089,q1,2sc1313,,,,,,512-KSC1845FTA
    sx-1250,AWM-089,q2,2sc1313,,,,,,512-KSC1845FTA
    ,,,,,,,,,
    ,,,,,,,,,
    sx-1250,fused,power,ok,,,,,,
    sx-1250,AWR-107,C6,470,100,ceb,,470,100,647-TVX2A471MCD
    sx-1250,AWR-107,C7,470,100,ceb,,470,100,647-TVX2A471MCD
    sx-1250,AWR-107,C8,470,25,cea,,470,25,647-UPW1E471MPD
    sx-1250,AWR-107,C9,470,25,cea,,470,25,647-UPW1E471MPD
    ,,,,,,,,,
    ,,,,,,,,,
    sx-1250,chassis,s2,asr-015,soft start,relay,pcb mt,pins,,653-LY2-0-DC48
    sx-1250,chassis,s2,asr-015,soft start,relay,NO mount,tabs,,653-LY2-DC48
    ,,,,,,,,,
    sx-1250,chassis,s2,asr-015,soft start,relay,ears mount,tabs,,653-ly1f-dc48
    sx-1250,chassis,,,soft start,ly1f mount,m-f standoff,,,728-FM2110-3005-SS | 2
    sx-1250,chassis,,,soft start,ly1f mount,f-f standoff,,,728-FM1262-3005-SS | 2
    ,,,,,,,,,
    ,,,,,,,,,
    sx-1250,function ,switch,assy,,,,,,
    sx-1250,AWS-094,C1,220,6,cea,,220,6.3,647-UPW0J221MED
     
  10. kevzep

    kevzep Its all about the Music Subscriber

    Thats the one!! Thank you for that, I was a bit busy and didn't have time to search....
     
  11. kevzep

    kevzep Its all about the Music Subscriber

    Oh I just wanted to add to this, that this list includes the Panasonic Film caps which are no longer manufactured so it needs updating if anyone is intending on using it...
     

     

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  12. sendust

    sendust Music feeds the soul Subscriber

    Messages:
    736
    I redid the board using parts as listed and replaced the trimmers, still vr1 65 v . vr2 -50v . the unit does no go into protection.
     
  13. kevzep

    kevzep Its all about the Music Subscriber

    Just need to verify you have -87.5 at Pin 15.
    We know pin 13 is -50VDC
    But also get us a reading off Pin 14, should be -25VDC.
     
  14. sendust

    sendust Music feeds the soul Subscriber

    Messages:
    736
    So do i pull back the connector to expose pins and test 15 using 12 for ground and 14 . using 12 for ground?
     
  15. kevzep

    kevzep Its all about the Music Subscriber

    Oh, what I did was had the unit on the side with the stabiliser near the bottom, then I had it removed from the unit and I just flipped the molex connectors over and ran it flopped over so the board was hanging out the bottom, this way its easier to measure things. Less likely to short something out....
    I might have a pic, I'll post it if I do in case I am talking gibberish and not making sense...
     
  16. sendust

    sendust Music feeds the soul Subscriber

    Messages:
    736
    I would appreciate the photo thanks
     

     

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  17. kevzep

    kevzep Its all about the Music Subscriber

    Looks like I didn't take a pic, which is unusual for me.....:yikes:

    You can do it whatever way you are comfortable doing, just be careful not to slip and short something out.....
     
  18. sendust

    sendust Music feeds the soul Subscriber

    Messages:
    736
    I have -96vt at 15 . 2.6vt at 13
     
  19. kevzep

    kevzep Its all about the Music Subscriber

    Okay, thats weird, you say at the test point its -50V?
    Are you sure you're on 13? That is the -65V rail, and you were saying on the test point you had -50V?
    And what is 14?

    As a side note, this is looking very similar to the problem I had, but get in there and have a second look and make sure all the information is correct.
     
  20. sendust

    sendust Music feeds the soul Subscriber

    Messages:
    736
    I had -50vlt at 16 and ground, 65vlt 17 and ground . -96vlt at 15 and ground and 2.6vlt at 13 and ground stabilizer board
     

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