Rta12-c schematic?

I'd like to recap mine and I need a list of the caps needed please. I notice the 12b is listed in the schematic thread but not the c, are they the same?
2 Channel
Marantz UD-7007 Cd Player
Parasound Halo P5 Preamplifier
Marantz ST-7001 Radio Tuner
Parasound HCA-1500A Power Amplifier
Polk Audio Monitor 10B's

5 channel
Sony Bravia 32" LED
Yamaha RX-a3010 Receiver
Marantz UD-7007 Blu-Ray player
Klipsch RB-61 Main Speakers
Klipsch RB-41 Surround Speakers

Comments

  • pitdogg2pitdogg2 Posts: 7,806
    I don't get this you have the speakers right? Why not look at the crossover and BAM you have the values of the caps and resistors needed....

  • Mr. SharpeMr. Sharpe Posts: 1,025
    Yes I do, but experience tells me the yellow caps don't have uf values written on them do they?
    2 Channel
    Marantz UD-7007 Cd Player
    Parasound Halo P5 Preamplifier
    Marantz ST-7001 Radio Tuner
    Parasound HCA-1500A Power Amplifier
    Polk Audio Monitor 10B's

    5 channel
    Sony Bravia 32" LED
    Yamaha RX-a3010 Receiver
    Marantz UD-7007 Blu-Ray player
    Klipsch RB-61 Main Speakers
    Klipsch RB-41 Surround Speakers
  • Mr. SharpeMr. Sharpe Posts: 1,025
    I'm not seeing values written on the yellow ones unless they're covered up. I can plainly see the inner caps (27uf) no sweat and resistor and all resistors on the top board, some of the caps I can't see, I don't want to start taking them off because then I won't have speakers to listen to while waiting on cap deliveries
    2 Channel
    Marantz UD-7007 Cd Player
    Parasound Halo P5 Preamplifier
    Marantz ST-7001 Radio Tuner
    Parasound HCA-1500A Power Amplifier
    Polk Audio Monitor 10B's

    5 channel
    Sony Bravia 32" LED
    Yamaha RX-a3010 Receiver
    Marantz UD-7007 Blu-Ray player
    Klipsch RB-61 Main Speakers
    Klipsch RB-41 Surround Speakers
  • pitdogg2pitdogg2 Posts: 7,806
    does the cap have ANY writing on it what so ever you can see? if so take a picture we will tell you. it also could be under the cap against the board. It will have a value somewhere. I promise.

    Well you could take it off and put back on I have done that a bunch of times.
  • Mr. SharpeMr. Sharpe Posts: 1,025
    There's one of He yellow ones that has 4.4j 100v

    Others are more 27's and a 5.5uf. You were right it isn't rocket science:) but the 4.4j I'm confused on. bqrrpdlxlgi1.jpgglaeank4rsow.jpg


    Once the yellow ones are cleared up I think they're film caps right? Is the blue something special? I don't want to replace any of them and mess up the speakers or anything
    2 Channel
    Marantz UD-7007 Cd Player
    Parasound Halo P5 Preamplifier
    Marantz ST-7001 Radio Tuner
    Parasound HCA-1500A Power Amplifier
    Polk Audio Monitor 10B's

    5 channel
    Sony Bravia 32" LED
    Yamaha RX-a3010 Receiver
    Marantz UD-7007 Blu-Ray player
    Klipsch RB-61 Main Speakers
    Klipsch RB-41 Surround Speakers
  • F1nutF1nut Posts: 38,136
    The yellow caps are mylar, the blue is an electrolytic. Nothing special about any of them.

    The value is 4.4 uF, J is a code for the +/- tolerance.

    As long as you've been here I'm surprised you don't know this stuff.
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."


  • FaustinFaustin Posts: 680
    I believe the 12b revised schematic is the correct one for the 12c. The revised has a poly switch instead of a fuse for the tweeter.
  • Mr. SharpeMr. Sharpe Posts: 1,025
    F1nut wrote: »
    The yellow caps are mylar, the blue is an electrolytic. Nothing special about any of them.

    The value is 4.4 uF, J is a code for the +/- tolerance.

    As long as you've been here I'm surprised you don't know this stuff.

    I didn't know what the J was for, my old cv's had three of those and didn't know those were uf values

    2 Channel
    Marantz UD-7007 Cd Player
    Parasound Halo P5 Preamplifier
    Marantz ST-7001 Radio Tuner
    Parasound HCA-1500A Power Amplifier
    Polk Audio Monitor 10B's

    5 channel
    Sony Bravia 32" LED
    Yamaha RX-a3010 Receiver
    Marantz UD-7007 Blu-Ray player
    Klipsch RB-61 Main Speakers
    Klipsch RB-41 Surround Speakers
  • pitdogg2pitdogg2 Posts: 7,806
    keep in mind that the new film caps will be much bigger. you will need to be creative.
  • Mr. SharpeMr. Sharpe Posts: 1,025
    Haha yeah I know, I saw where someone on here used sonicaps for his rta12 sprakers and he had to use two caps for the 5.5uf, I mean I'm cool with doing that but I think his upgrade cost something like $300 and that's quite a bit more than I'll spend. I still have several Dayton caps left from when I was going to recap my jbl speakers and I'm thinking I may use this but not sure yet.
    2 Channel
    Marantz UD-7007 Cd Player
    Parasound Halo P5 Preamplifier
    Marantz ST-7001 Radio Tuner
    Parasound HCA-1500A Power Amplifier
    Polk Audio Monitor 10B's

    5 channel
    Sony Bravia 32" LED
    Yamaha RX-a3010 Receiver
    Marantz UD-7007 Blu-Ray player
    Klipsch RB-61 Main Speakers
    Klipsch RB-41 Surround Speakers
  • Mr. SharpeMr. Sharpe Posts: 1,025
    Anyway so sonicaps are probably not happening on Thai upgrade what other brand makes a good cap would you recommend besides clarity of course unless they have a "cheap skate" series:) stolen, Dayton I know Mundorf is highly regarded and jantzen
    2 Channel
    Marantz UD-7007 Cd Player
    Parasound Halo P5 Preamplifier
    Marantz ST-7001 Radio Tuner
    Parasound HCA-1500A Power Amplifier
    Polk Audio Monitor 10B's

    5 channel
    Sony Bravia 32" LED
    Yamaha RX-a3010 Receiver
    Marantz UD-7007 Blu-Ray player
    Klipsch RB-61 Main Speakers
    Klipsch RB-41 Surround Speakers
  • FaustinFaustin Posts: 680
    If you don't want to spend the money for all Sonicaps, I would recommend going with a Sonicap Gen 1 or Clarity ESA for the high pass and then use the lesser expensive brand for the low pass. That is what I did on my 12's and once everything burned in they sounded fantastic.
  • Mr. SharpeMr. Sharpe Posts: 1,025
    Okay I'll look into it
    2 Channel
    Marantz UD-7007 Cd Player
    Parasound Halo P5 Preamplifier
    Marantz ST-7001 Radio Tuner
    Parasound HCA-1500A Power Amplifier
    Polk Audio Monitor 10B's

    5 channel
    Sony Bravia 32" LED
    Yamaha RX-a3010 Receiver
    Marantz UD-7007 Blu-Ray player
    Klipsch RB-61 Main Speakers
    Klipsch RB-41 Surround Speakers
  • Mr. SharpeMr. Sharpe Posts: 1,025
    I have a question about the safety switch on top, looking at the schematic I wanna say it's a 3/4a fast blow? And what about thesejjmjntxih4eu.jpg
    gvek5ydrrfl2.jpg
    What are they and will they need replacing?
    2 Channel
    Marantz UD-7007 Cd Player
    Parasound Halo P5 Preamplifier
    Marantz ST-7001 Radio Tuner
    Parasound HCA-1500A Power Amplifier
    Polk Audio Monitor 10B's

    5 channel
    Sony Bravia 32" LED
    Yamaha RX-a3010 Receiver
    Marantz UD-7007 Blu-Ray player
    Klipsch RB-61 Main Speakers
    Klipsch RB-41 Surround Speakers
  • pitdogg2pitdogg2 Posts: 7,806
    Looks like 750pf silver mica cap. If so those are used as bypass cap. They get tossed in most cases. You may need to use a jumper in the circuit. ATM I'm not positive. I do not have access to the schematic.
  • Mr. SharpeMr. Sharpe Posts: 1,025
    Okay, I don't mind using a jumper as long as these aren't needed. I saw mica on the schematic and had never heard of that
    2 Channel
    Marantz UD-7007 Cd Player
    Parasound Halo P5 Preamplifier
    Marantz ST-7001 Radio Tuner
    Parasound HCA-1500A Power Amplifier
    Polk Audio Monitor 10B's

    5 channel
    Sony Bravia 32" LED
    Yamaha RX-a3010 Receiver
    Marantz UD-7007 Blu-Ray player
    Klipsch RB-61 Main Speakers
    Klipsch RB-41 Surround Speakers
  • pitdogg2pitdogg2 Posts: 7,806
    Like i said I'm not positive you will need a jumper. With better caps those are not needed.
  • Mr. SharpeMr. Sharpe Posts: 1,025
    Good I'll toss em then. I'm gonna dish out for the sonicaps on the top may as well, I do have one more question then I'll leave you alone, I'm getting most items from soniccraft and it doesn't look like they carry safety switches, I'm guessing there aren't any alternatives for these huh?
    2 Channel
    Marantz UD-7007 Cd Player
    Parasound Halo P5 Preamplifier
    Marantz ST-7001 Radio Tuner
    Parasound HCA-1500A Power Amplifier
    Polk Audio Monitor 10B's

    5 channel
    Sony Bravia 32" LED
    Yamaha RX-a3010 Receiver
    Marantz UD-7007 Blu-Ray player
    Klipsch RB-61 Main Speakers
    Klipsch RB-41 Surround Speakers
  • pitdogg2pitdogg2 Posts: 7,806
    edited October 29
    Why on earth would you want them? They're a problem, stick a .5 ohm 12 watt mills resistor in its place and feed the speakers good amplification.
  • westmassguywestmassguy Posts: 5,768
    Mr. Sharpe wrote: »
    Okay, I don't mind using a jumper as long as these aren't needed. I saw mica on the schematic and had never heard of that

    Good heavens NO. Do not jumper them, just remove them. They're no longer needed with quality Metalized Polypropylene Capacitors
    Home Theater/2 Channel:
    Front: SDA-2ATL forum.polkaudio.com/discussion/143984/my-2as-finally-finished-almost/p1
    Center: Custom Built forum.polkaudio.com/discussion/150760/my-center-channel-project/p1
    Surrounds & Rears: Custom Built forum.polkaudio.com/discussion/151647/my-surround-project/p1
    Sonicaps, Mills, RDO-194s-198s, Dynamat, Hurricane Nuts, Blackhole5
    Pioneer Elite VSX-72TXV, Carver PM-350, SVS PB2-Plus Subwoofer
    Cables: Speaker: Furez 10/2 with GLS Locking Banana Plugs
    Interconnect: Furez 10/2 with SpeakONs
    ICs: Custom Furez by Douglas Connections
    Den:
    Bose 901 Series II Continentals Restored, Re-Built Equalizer with Elna Silmic IIs, Sonicaps, and Silver Mica Caps
    Carver CT-3 Pre, Carver PM-600

    dhsspeakerservice.com/
    Now Carrying Gimpod's Custom SDA Circuit Boards

    "And keep her under 70, would you, huh? Betty likes a slow ride"
  • Mr. SharpeMr. Sharpe Posts: 1,025
    pitdogg2 wrote: »
    Why on earth would you want them? They're a problem, stick a .5 ohm 12 watt mills resistor in its place and feed the speakers good amplification.

    They have 300 watts and I was just askin sheesh
    Mr. Sharpe wrote: »
    Okay, I don't mind using a jumper as long as these aren't needed. I saw mica on the schematic and had never heard of that

    Good heavens NO. Do not jumper them, just remove them. They're no longer needed with quality Metalized Polypropylene Capacitors

    Simple enough

    2 Channel
    Marantz UD-7007 Cd Player
    Parasound Halo P5 Preamplifier
    Marantz ST-7001 Radio Tuner
    Parasound HCA-1500A Power Amplifier
    Polk Audio Monitor 10B's

    5 channel
    Sony Bravia 32" LED
    Yamaha RX-a3010 Receiver
    Marantz UD-7007 Blu-Ray player
    Klipsch RB-61 Main Speakers
    Klipsch RB-41 Surround Speakers
  • Mr. SharpeMr. Sharpe Posts: 1,025
    So after doing some reading in some old threads am I to understand the "5.5uf" is a 55uf capacitor? I'm not at home right now so can't look... dear oh dear hahaha think I almost screwed up ordering caps to make the 5.5 value haha yikes
    2 Channel
    Marantz UD-7007 Cd Player
    Parasound Halo P5 Preamplifier
    Marantz ST-7001 Radio Tuner
    Parasound HCA-1500A Power Amplifier
    Polk Audio Monitor 10B's

    5 channel
    Sony Bravia 32" LED
    Yamaha RX-a3010 Receiver
    Marantz UD-7007 Blu-Ray player
    Klipsch RB-61 Main Speakers
    Klipsch RB-41 Surround Speakers
  • Mr. SharpeMr. Sharpe Posts: 1,025
    9kg63jivzwth.png

    I guess the people at work were right, I am blind
    2 Channel
    Marantz UD-7007 Cd Player
    Parasound Halo P5 Preamplifier
    Marantz ST-7001 Radio Tuner
    Parasound HCA-1500A Power Amplifier
    Polk Audio Monitor 10B's

    5 channel
    Sony Bravia 32" LED
    Yamaha RX-a3010 Receiver
    Marantz UD-7007 Blu-Ray player
    Klipsch RB-61 Main Speakers
    Klipsch RB-41 Surround Speakers
  • westmassguywestmassguy Posts: 5,768
    2 X 27uf will do nicely
    Home Theater/2 Channel:
    Front: SDA-2ATL forum.polkaudio.com/discussion/143984/my-2as-finally-finished-almost/p1
    Center: Custom Built forum.polkaudio.com/discussion/150760/my-center-channel-project/p1
    Surrounds & Rears: Custom Built forum.polkaudio.com/discussion/151647/my-surround-project/p1
    Sonicaps, Mills, RDO-194s-198s, Dynamat, Hurricane Nuts, Blackhole5
    Pioneer Elite VSX-72TXV, Carver PM-350, SVS PB2-Plus Subwoofer
    Cables: Speaker: Furez 10/2 with GLS Locking Banana Plugs
    Interconnect: Furez 10/2 with SpeakONs
    ICs: Custom Furez by Douglas Connections
    Den:
    Bose 901 Series II Continentals Restored, Re-Built Equalizer with Elna Silmic IIs, Sonicaps, and Silver Mica Caps
    Carver CT-3 Pre, Carver PM-600

    dhsspeakerservice.com/
    Now Carrying Gimpod's Custom SDA Circuit Boards

    "And keep her under 70, would you, huh? Betty likes a slow ride"
  • Mr. SharpeMr. Sharpe Posts: 1,025
    I gotcha thanks to all. Due to budget constraints I think I'll end up using daytons, I can't afford all of those sonicap 27's
    2 Channel
    Marantz UD-7007 Cd Player
    Parasound Halo P5 Preamplifier
    Marantz ST-7001 Radio Tuner
    Parasound HCA-1500A Power Amplifier
    Polk Audio Monitor 10B's

    5 channel
    Sony Bravia 32" LED
    Yamaha RX-a3010 Receiver
    Marantz UD-7007 Blu-Ray player
    Klipsch RB-61 Main Speakers
    Klipsch RB-41 Surround Speakers
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