Recapping this little amp for my Monitor 5b

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cortico
cortico Posts: 587
edited November 2015 in DIY, Mods & Tweaks
Hi guys, thought in sharing this here, i got this Marantz 1060 to mate with a monitor 5B speaker set I recaped a few months ago and can't let it go.

Despite the size this little amp puts out a very nice sound, it may be just perfect for my bedroom setup.

As speakers a 40 year old integrated amp must benefict from a recap, specially electrolytic, tantalum and other noise prone components known problematic.

I started cleaning off the dust on the chassis and boards, scrubbed the face plate, inspected for cold solder joints and adjusted the power amp bias.

Everything is working as it should and the bias stays stable st 7.5mv on both channels. My knock age and equipment is limited so it's good to start with something without isses.

I am putting together a parts list and fir know I will start replacing the main big power capacitior, the coupling capacitors and the power supply board... I'll post my progress.

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Comments

  • F1nut
    F1nut Posts: 49,802
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    Nice looking integrated and very clean.
    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."

    President of Club Polk

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  • cortico
    cortico Posts: 587
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    Thanks, I usually the antistatic brush and a vacuum cleaner, on the most difficult areas I moist the brush with simple green cleaner.

    The layout is very clear, components are big with easy access, makes de-solder and soldering process a breeze.

    There is an independent circuit board for each part of the circuit, tone/preamp in the center, power supply at the right side, phono amp at left and the power amp in the back attached to the heatsink, the right and left channel share the same board.

    The rectifier, main filter cap and coupling caps are mounted directly on the chassis. I like this kind of configuration, it's easy to inspect and troubleshoot your work.

    Surprisingly, this unit sounds really good as is, there's definitely synergy between the amp and the monitors 5 with the clarity ESA. Despite the age, the 1060 is running in spec, only had to tweak the bias a few mv.

    While inspecting it visually, I noticed a shrunk sleeve, and bulging bottom on the preamp local power supply cap. This not a good sign and I replaced it with a Nichicon Muse KZ I had in my part box.

    I will leave the pre-amp board alone for now and focus my attention on the power supply board. I plan to replace all caps on this board using Elna Silmic II, I used them before, and they are a good fit to this Marantz due to their "vintagey" warm smooth sound.

    The gurus also recommend to bump up cap values a bit and upgrade the 2 diodes with UF4005 for a better performance... I will follow up with pics once the parts are in.



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  • motorhead43026
    motorhead43026 Posts: 3,892
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    I dig the rotary phone in the first picture.
    2 channel: Anthem 225 Integrated amp; Parasound Ztuner; TechnicsTT SL1350; Vincent PHO-8 phono pre; Marantz CD6005 spinner; Polk SDA2BTL's; LAT International speaker cables, ZU Mission IC's and power cables all into a PS Audio Dectet Power center.

    Other; M10 series II, M7C's, Hafler XL600 amp, RB-980BX, Parasound HCA-1500 amp , P5 preamp, all in storage. All vintage Polk have had crossover rebuilds and tweeter upgrades.

    The best way to predict the future is to invent it.

    It is imperative that we recognize that an opinion is not a fact.

    Imagine making politics your entire personality.
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  • skrol
    skrol Posts: 3,339
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    motorhead43026 wrote: »
    I dig the rotary phone in the first picture.

    I was going to ask about that. Is it in use or just decoration? I don't know if the phone co still supports pulse dialing.
    Stan

    Main 2ch:
    Polk LSi15 (DB840 upgrade), Parasound: P/LD-1100, HCA-1000A; Denon: DVD-2910, DRM-800A; Benchmark DAC1, Monster HTS3600-MKII, Grado SR-225i; Technics SL-J2, Parasound PPH-100.

    HT:
    Marantz SR7010, Polk: RTA11TL (RDO198-1, XO and Damping Upgrades), S4, CS250, PSW110 , Marantz UD5005, Pioneer PL-530, Panasonic TC-P42S60

    Other stuff:
    Denon: DRA-835R, AVR-888, DCD-660, DRM-700A, DRR-780; Polk: S8, Monitor 5A, 5B, TSi100, RM7, PSW10 (DXi104 upgrade); Pioneer: CT-6R; Onkyo CP-1046F; Ortofon OM5E, Marantz: PM5004, CD5004, CDR-615; Parasound C/PT-600, HCA-800ii, Sony CDP-650ESD, Technics SA 5070, B&W DM601
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  • cortico
    cortico Posts: 587
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    It's just decoration, I think it can't be used anymore...
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  • WilliamM2
    WilliamM2 Posts: 4,713
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    cortico wrote: »
    It's just decoration, I think it can't be used anymore...

    Isn't it just a replica? I've never seen a real rotary phone with # and * buttons.

    http://www.amazon.com/Crosley-CR62-BK-Kettle-Classic-Technology/dp/B000ASKN90/ref=sr_1_2?s=electronics&ie=UTF8&qid=1446783800&sr=1-2&keywords=crosley+phone
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  • cortico
    cortico Posts: 587
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    Yeah think so, I found on trash and brought it home, I don't even have home phone :)
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  • cortico
    cortico Posts: 587
    edited November 2015
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    The knock off!6w1v646uxanz.jpeg

    the cap that came out, the photo doesn't shown very well, but the sleeve shrunk a bit and the bottom seal was bulging... replaced with a Nichicon Muse I had around...
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    Post edited by cortico on
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  • Mikey081057
    Mikey081057 Posts: 7,127
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    Did you see the wood case for the 1060 in the FS?

    http://forum.polkaudio.com/discussion/170107/fs-amps-pre-amps-speakers-etc#latest
    My New Year's resolution is 3840 × 2160

    Family Room| Marantz AV7704| Usher Dancer Mini - 2 DMD Mains |Usher Dancer Mini-x DMD's Surrounds | Usher BE-616 DMD Center | SVS Ultra Rear Surrounds | Parasound Halo A21 | Parsound Halo A52+ | MIT Shotgun S3's | Dual SVS SB 4000 Ultras | Oppo UDP 203 | Directv Genie HD DVR | Samsung 75" Q8 QLED | PSAudio Stellar GCD | Mytek Brooklyn DAC+ | Lumin U1 Mini | HP Elite Slice PC | ROON'd for life |

    ManCave: HT:Polk LSiM 706VR3 LSiM 703's LSiM 702's|| Marantz AV7002 AV PrePro Sunfire TGA-7401| Sony PS4 Pro| Sony PS4 Pro|SVS PB13 Ultra| Oppo UDP 203 | Music Hall MMF 5.3se TT w/ Soundsmith Carmen | Samsung 55" SUHD TV | Sony PS4

    Patio | Polk Atrium 8's | Yamaha R-N303BL |

    Office BlueSound Node| KEF LS50 | Peactree Nova 125SE |

    Bedroom | Focal 905's | Chromecast Audio |

    Garage | Polk Monitor 5B's

    Closet Yamaha M80 | 2 Polk MP3K subs| Yaqin MC100B with Shuguang Treasures KT 88's & CV181Z's | Tesla E83CC's | Marantz 2252B | Marantz 2385 |Polk SDA SRS 2.3 | LSiM 705's |
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  • cortico
    cortico Posts: 587
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    Mikey081057 wrote: »
    Did you see the wood case for the 1060 in the FS?

    http://forum.polkaudio.com/discussion/170107/fs-amps-pre-amps-speakers-etc#latest

    no! will check, thanks man!
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  • cortico
    cortico Posts: 587
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    This is how I set up the 1060, clean, simple but an amazing pairing to the monitor5. The room shape and listening position makes it sound no less then perfect to me ears. Makes me wonder about the line of thinking, "isn't broken don't fix it..."

    The speaker stands are temporary, I have a 14" tall stands in transit, it will elevate the speakers just enough.

    mc63swddpnqu.jpeg
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  • Mikey081057
    Mikey081057 Posts: 7,127
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    Very Sweet!
    My New Year's resolution is 3840 × 2160

    Family Room| Marantz AV7704| Usher Dancer Mini - 2 DMD Mains |Usher Dancer Mini-x DMD's Surrounds | Usher BE-616 DMD Center | SVS Ultra Rear Surrounds | Parasound Halo A21 | Parsound Halo A52+ | MIT Shotgun S3's | Dual SVS SB 4000 Ultras | Oppo UDP 203 | Directv Genie HD DVR | Samsung 75" Q8 QLED | PSAudio Stellar GCD | Mytek Brooklyn DAC+ | Lumin U1 Mini | HP Elite Slice PC | ROON'd for life |

    ManCave: HT:Polk LSiM 706VR3 LSiM 703's LSiM 702's|| Marantz AV7002 AV PrePro Sunfire TGA-7401| Sony PS4 Pro| Sony PS4 Pro|SVS PB13 Ultra| Oppo UDP 203 | Music Hall MMF 5.3se TT w/ Soundsmith Carmen | Samsung 55" SUHD TV | Sony PS4

    Patio | Polk Atrium 8's | Yamaha R-N303BL |

    Office BlueSound Node| KEF LS50 | Peactree Nova 125SE |

    Bedroom | Focal 905's | Chromecast Audio |

    Garage | Polk Monitor 5B's

    Closet Yamaha M80 | 2 Polk MP3K subs| Yaqin MC100B with Shuguang Treasures KT 88's & CV181Z's | Tesla E83CC's | Marantz 2252B | Marantz 2385 |Polk SDA SRS 2.3 | LSiM 705's |
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