Marantz 2220 (non B) Complete Restoration

Discussion in 'Marantz Audio' started by MBuras, Feb 13, 2016.

  1. MBuras

    MBuras Restoration is an Addiction Subscriber

    Messages:
    532
    Location:
    Champaign, IL
    I've reworked quite a few receivers since my last thread documenting a Marantz 2325 restoration. Most of them are covered pretty well on AK but I didn't find much information on this model so thought I would contribute my experience documenting the boards and finding replacement parts.

    The unit that I worked on was purchased on the "Big E" auction site as a functioning but scratchy receiver. True to the description it indeed had volume control issues when tested but otherwise functioned as expected. A perfect candidate for a straight up rebuild with no underlying issues to diagnose. A nice change from some of the junk I buy there.

    Below I'll document each board and parts used from Mouser. These selections worked for me but your milage may vary. Hopefully some find it useful.
     

     

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  2. MBuras

    MBuras Restoration is an Addiction Subscriber

    Messages:
    532
    Location:
    Champaign, IL
    P900 Phono Board
    Photo Feb 09, 5 04 22 PM.jpg

    The documented contents of the original board are as follows:
    C901/902 - 35v/2.2uf low leakage capacitors
    C905/906 - 25v/22uf low leakage capacitors
    C909/C910 - 16v/47uf capacitors
    C919 - 50v/100uf capacitor
    H901 thru H904 - 2SC1327 transistors
    H905/H906 - 2SC458 transistors

    The replacements are listed below with Mouser part numbers:
    C901/C902 - WIMA 50v/2.2uf film 505-MKS22.2/50/10
    C905/C906 - Nichicon 25v/22uf low leakage 647-UKL1E220KDDANA
    C909/C910 - Elna Silmic II 25v/47uf 555-RFS25V470MG3#5
    C919 - Elna Silmic II 50v/100uf 555-RFS50V101MI5#5 (watch out on this one - the board polarity is marked incorrectly!!)
    H901 thru H904 - Fairchild 512-KSC1845FTA
    H905/H906 - Fairchild 512-KSC1845FTA (watch the pinout on replacements - originals are BCE and new are ECB)

    Photo Feb 10, 11 38 08 AM.jpg
     
  3. MBuras

    MBuras Restoration is an Addiction Subscriber

    Messages:
    532
    Location:
    Champaign, IL
    P500 Preamp Board
    Photo Feb 09, 5 04 29 PM.jpg

    The documented contents of the original board are as follows:
    C503/C504 - 50v/4.7uf low leakage capacitors
    C505/C506 - 50v/1uf low leakage capacitors
    C509/C510 - 10v/100uf capacitors
    C511/C512 - 35v/10uf capacitors
    C513/C514 - 25v/0.47uf low leakage capacitors
    C515 - 35v/100uf capacitor
    H501 thru H506 - 2SC458 transistors

    The replacements are listed below with Mouser part numbers:
    C503/C504 - Nichicon 50v/4.7uf low leakage 647-UKL1H4R7KDDANA (watch out here - the board polarity is marked incorrectly!!)
    C505/C506 - WIMA 50v/1uf film 505-MKS2B041001C00KS
    C509/C510 - Elna Silmic II 16v/100uf 555-RFS16V101MH3#5 (watch out here - the board polarity is marked incorrectly!!)
    C511/C512 - Elna Silmic II 35v/10uf 555-RFS35V100ME3#5
    C513/C514 - Nichicon 50v/0.47uf film 647-QYX1H474JTP (normally would use WIMA but was out and these were handy)
    C515 - Elna Silmic II 35v/100uf 555-RFS35V101MH5#5
    H501 thru H506 - Fairchild 512-KSC1845FTA (watch the pinout on replacements - originals are BCE and new are ECB)

    Photo Feb 10, 11 38 25 AM.jpg
     
  4. MBuras

    MBuras Restoration is an Addiction Subscriber

    Messages:
    532
    Location:
    Champaign, IL
    P800 Power Supply Board

    Photo Feb 12, 9 51 49 AM.jpg

    The documented contents of the original board are as follows:
    C803 - 63v/330uf capacitor
    C804 - 35v/470uf capacitor
    C805 - 16v/470uf capacitor
    C806 - 50v/47uf capacitor
    C808 - 50v/47uf capacitor
    C809 - 50v/100uf capacitor
    C810 - 16v/470uf capacitor
    H803 - 2SC1213 transistor
    H804/H805/H808 - S1B-01-02 Diodes
    R802 - 270ohm/1watt resistor
    R803 - 330ohm/1watt resistor
    Notes: you don't have to replace the diodes or resistors. They don't usually go bad but I like fresh replacements.

    The replacements are listed below with Mouser part numbers:
    C803 - Nichicon Fine Gold 63v/330uf 647-UFG1J331MHM
    C804 - Nichicon Fine Gold 50v/470uf 647-UFG1H471MHM (increased voltage based on availability)
    C805 - Nichicon Fine Gold 16v/470uf 647-UFG1C471MPM
    C806 - Nichicon Fine Gold 50v/47uf 647-UFG1H470MPM
    C808 - Nichicon Fine Gold 50v/47uf 647-UFG1H470MPM
    C809 - Nichicon Fine Gold 50v/100uf 647-UFG1H101MPM (watch out here - the board polarity is marked incorrectly!!)
    C810 - Nichicon Fine Gold 16v/470uf 647-UFG1C471MPM
    H803 - Fairchild 512-KSC2383YTA
    H804/H805/H808 - Fairchild Ultrafast 512-UF4005
    R802 - KOA Speer 270ohm/2watt 660-MO2CT631R271J (increased wattage and fits in same space)
    R803 - KOA Speer 330ohm/2watt 660-MO2C331J (increased wattage and fits in same space)

    Photo Feb 13, 1 48 28 PM.jpg
     
  5. MBuras

    MBuras Restoration is an Addiction Subscriber

    Messages:
    532
    Location:
    Champaign, IL
    P700 Power Amp Board & other misc items

    Photo Feb 10, 5 04 44 PM.jpg

    I got a nice shot of the power board before I started work but forgot to shoot the finished product until it was installed. Sorry. Huge pain to get this board in and out so no redo's. Also never got a photo of the coupling/filter capacitors beforehand but they're in the finished shot along with the power board.

    The documented contents of the original board are as follows:
    C701/C702 - 50v/0.47uf low leakage capacitors
    C703/C704 - 35v/220uf capacitors
    C707 thru C710 - 50v/47uf capacitors
    C711/C712 - 35v/10uf capacitors
    C715/C716 - 10v/100uf capacitors
    C717/C718 - 35v/22uf capacitors
    H701/H702 - 2SC945 transistors
    H703/H704 - 2SC1175 transistors
    H705/H706 - 2SC371 transistors
    H707/H708 - 2SA562 transistors
    R713/R714 - 2.2Kohm/0.5watt resistors
    R721/R722 - 3.3Kohm/0.5watt resistors
    R723/R724 - 100Kohm/0.5watt trimmer
    R729/R730 - 470ohm/0.5watt trimmer
    R747 thru R750 - 0.5ohm/3watt fireproof resistors
    R753/R754 - 10ohm/0.5watt resistors

    Notes: you don't have to replace the resistors. They don't usually go bad but I like fresh replacements.

    The replacements are listed below with Mouser part numbers:
    C701/C702 - Nichicon 50v/0.47uf film 647-QYX1H474JTP (normally would use WIMA but was out and these were handy)
    C703/C704 - Elna Silmic II 35v/22uf 555-RFS35V221MI6#5
    C707 thru C710 - Elna Silmic II 50v/47uf 555-RFS50V470MH4#5
    C711/C712 - Elna Silmic II 35v/10uf 555-RFS35V100ME3#5
    C715/C716 - Elna Silmic II 16v/100uf 555-RFS16V101MH3#5 (watch out here - the board polarity is marked incorrectly!!)
    C717/C718 - Elna Silmic II 35v/22uf 555-RFS35V220MG3#5
    H701/H702 - Fairchild 512-KSC2383YTA
    H703/H704 - Fairchild 512-KSC2383YTA
    H705/H706 - Fairchild 512-KSC945CYTA (make sure to get the CYTA and not YTA - the extra C denotes center collector ECB which matches original)
    H707/H708 - Fairchild 512-KSA733CYTA (make sure to get the CYTA and not YTA - the extra C denotes center collector ECB which matches original)
    R713/R714 - KOA Speer 2.2Kohm/1watt 660-MO1C222J (increased wattage and fits in same space)
    R721/R722 - KOA Speer 3.3Kohm/1watt 660-MO1C332J (increased wattage and fits in same space)
    R723/R724 - Bournes 100Kohm/0.5watt 652-3386F-1-104LF
    R729/R730 - Bournes 470ohm/0.5watt 652-3386F-1-471LF
    R747 thru R750 - Vishay 0.5ohm/3watt fireproof 594-AC03W0R500J
    R753/R754 - KOA Speer 10ohm/1watt 660-MOS1C100J (increased wattage and fits in same space)

    Photo Feb 13, 1 48 18 PM.jpg

    And then finishing up with 4 other system capacitors.

    The documented contents are listed below:
    C001 - 10v/33uf capacitor (on the meter leads)
    C004/C005 - 50v/2200uf capacitor
    C006 - 63v/4700uf capacitor

    The replacements are listed below with Mouser part numbers:
    C001 - Elna Silmic II 25v/330uf 555-RFS25V330MG3#5 (increased voltage based on availability)
    C004/C005 - Nichicon Gold Tune 63v/3300uf 647-LKG1J332MESCBK (increased voltage & uf based on availability & person preference)
    C006 - Nichicon Gold Tune 80v/4700uf 647-LKG1K472MESCBK (increased voltage based on availability. in hindsight this should have been a 40mm capacitor instead of 35mm. Luckily I had an extra clamp that fit properly.)
     
  6. MBuras

    MBuras Restoration is an Addiction Subscriber

    Messages:
    532
    Location:
    Champaign, IL
    And that's it. Also replaced bulbs with OEM, cleaned controls, regreased outputs, etc. Fairly open case to work in but the amp board and power board require creative wire moving to get access to the back of the boards. Plenty of tips on AK about how best to do that.

    Again, this is what worked for me. I don't claim to have the one and only answer. Just adding to the database of information available at AK. Enjoy!
     
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  7. rBuckner

    rBuckner Luv 2 Restore Subscriber

    Messages:
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    Thanks for your efforts, that was a lot of work! The info will no doubt help someone out some day, especially that center collector lead part number tip. :thumbsup:
     
  8. MBuras

    MBuras Restoration is an Addiction Subscriber

    Messages:
    532
    Location:
    Champaign, IL
    Yeah, after having just finished a 2252B and 2330B this one took longer than I expected. Mainly access issues for amp, power and filter/coupling caps. Lots of creative wire desoldering/pin desoldering/wire unwrapping to gain access. Oh, and the TO-3 output transistor pins are soldered directly to wire...UGH!!!!

    I've learned so much from contributors like yourself I can't help but feel a need to give back. :)
     
  9. EastPoint

    EastPoint Factory Code No. 4200 Subscriber

    Messages:
    4,412
    Location:
    Milwaukee, WI
    This is a very helpful list, thank you. I'm finishing up a 2220 right now. I looked for a 40mm cap at Mouser, but they only have a few that are correct, and those are out of stock. I'm probably just going to replace the clamp like you did.
     
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  10. MBuras

    MBuras Restoration is an Addiction Subscriber

    Messages:
    532
    Location:
    Champaign, IL
    Yes. Those clamps come in handy when the proper size isn’t available. 35mm is still a good size and keeps it original looking.
     

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