#1
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MS750 problem???
I planned on selling my MS750 to someone locally today. I have not used it in a while. I turned it on and the red light just pulsed, the fan fired up and then a click noise like a camera shutter every couple of seconds followed by a beep. I finally hooked up a television to it and it says "starting up..." then it said "connecting to server, software update" I don't even have it connected to the internet. The faceplate does not light up either. This has never happened before. CD tray won't eject, no lighting (other than the pulsing red light at the power/stanbye switch) What's going on??
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#2
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MS750 problem???
I would venture to say the internal switching power supply has given up the ghost. These are known to have problems with capacitors and can be referburb'd pretty easily and reasonably inexpensively. Do a search on "MS300 power supply", there's an extensive thread on the topic.
Last edited by Cohibaman; 08-07-2017 at 06:53 PM. |
#3
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> CD Transport: Sony Part # CD-R/RW Model CRX230EE > Hard Drive: Seagate DB35 DVR IDE Hard drive model ST3750840ACE > Escient MX111 Power supply is the exact one used in the MS300/750. You can have the power supply rebuilt here: Ft Worth Audio 4224 W. Vickery Blvd. Ft. Worth, TX 76107 817-810-9786
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Dan STUDIO - McIntosh C1000C/P, MC2301 (2), MR88, Aurender N10, Esoteric K-01X, Shunyata Sigma spdif digital cable, Sonos Connect, PurePower 2000, Stillpoints, Furutech Flux 50, Michell Gyro SE, Michell HR Power Supply, SME 309, Ortofon Cadenza Black, Wireworld, Sonus faber Amati Anniversario LIVING ROOM - McIntosh C2300, MC75 (2), MR85, Magnum Dynalab 205, Simaudio MOON Neo 260D-T, Schiit Audio Yggdrasil, Aurender N100H, Shunyata Sigma USB cable, Micro Seiki DD40, Ortofon Cadenza Blue, Nakamichi BX-300, Sony 60ES DAT, PS Audio P10, Furutech Flux 50, Sonos Connect, Stillpoints, Wireworld, Kimber, PMC EB1i, JL Audio f113 VINTAGE - McIntosh MA230, Tandberg 3011A tuner, Olive 04HD, Sony DTC-59ES DAT, McIntosh 4300V, JBL 4312A |
#4
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Thank you Dan. I have access to a local and very capable electronics wiz where I work. I guess step one would be to take it to work with me tomorrow and have him check the power supply? If and when he (or Ft Worth Audio) corrects that (possible) problem...do I then need to get my computer tech guys at work to do something else? (I have read about a golden disk or something) So sorry to rehash old problems guys, it's just that I spent 2.2k a couple years ago on this thing and it's all I have left to start rebuilding a Mc system again from the ground up. I never got any use out of this ms750.
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#5
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Doug.......Get the power supply checked out. Rebuild it if necessary, then reinstall it to see if that solves the problem. The reason the transport won't eject is because the hard drive holds the commands for that function, so once an functioning power supply is installed, providing the hard drive hasn't been corrupted or destroyed, the transport tray should eject and the operating system should load. Step one is to get that power supply checked out.
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Dan STUDIO - McIntosh C1000C/P, MC2301 (2), MR88, Aurender N10, Esoteric K-01X, Shunyata Sigma spdif digital cable, Sonos Connect, PurePower 2000, Stillpoints, Furutech Flux 50, Michell Gyro SE, Michell HR Power Supply, SME 309, Ortofon Cadenza Black, Wireworld, Sonus faber Amati Anniversario LIVING ROOM - McIntosh C2300, MC75 (2), MR85, Magnum Dynalab 205, Simaudio MOON Neo 260D-T, Schiit Audio Yggdrasil, Aurender N100H, Shunyata Sigma USB cable, Micro Seiki DD40, Ortofon Cadenza Blue, Nakamichi BX-300, Sony 60ES DAT, PS Audio P10, Furutech Flux 50, Sonos Connect, Stillpoints, Wireworld, Kimber, PMC EB1i, JL Audio f113 VINTAGE - McIntosh MA230, Tandberg 3011A tuner, Olive 04HD, Sony DTC-59ES DAT, McIntosh 4300V, JBL 4312A |
#6
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Doug...I had 5 of these and they worked great for a few years. Then when they started going out, I learned a great deal about them. Having sent them to McIntosh and multiple other repair places including Panurgy which is where McIntosh will tell to send yours, the first thing that you need to do is have the power supply rebuilt. The capacitors used on it is what lead to Escient going out of business. Once the power supply has been rebuilt, you can test the rest. Normally, the power supply failing means crazy voltages sent to the hard drive, motherboard, and CD ROM drive. What I found that worked best was to have Ft Worth Audio rebuild the power supply, then I installed a new hard drive and reloaded the operating system. Once that was done, everything else seemed to work fine. If you don't rebuild the power supply, it will take out the rest of the components in the unit and render it into a brick. Best of luck with the music server.
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#7
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I will take it to one of repair techs tomorrow. I spoke (he speaks mostly Russian so the conversation was difficult) with him today. He understands the need for the power supply to be rebuilt. Is there any info, schematics, parts source, etc that anyone here could provide me so that I can give to him to help him tomorrow? He is a great electrician and electronic repair guy from what I understand. People at work bring him things all the time.
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#8
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__________________
Ivan FLORIDA MX136, MC1.2KW(10) MC2KW(2), MCD1100, MS750(2) MVP881, C1000C/P/T, MPC1500, HT-2 SUBS(2) HT3F(2) WS350(2) XRT2K, XCS2K, XR27(2) XCS350(2) JL GOTHAM v2 SUBS(2) SILENZIO MUSIC SERVER, LUMAGEN RADIANCE SCALER, SONY VPH-G90U 4K PROJECTOR, STEWART 120" MOTORIZED SCREEN, CINEMA-TECH SEATING, WW PLATINUM CABLES Reference System: ACCUPHASE A300 AMPS, C3900 PRE-AMP, DP1000 CD/SACD TRANSPORT, DC1000 DIGITAL PROCESSOR, DG-68 DIGITAL EQUALIZER, T1200 FM STEREO TUNER, PS1230 POWER SUPPLY, HRS-SXR CUSTOM RACK w/ M3X SHELVES, TAD REFERENCE ONE MK2 LOUDSPEAKERS, WW PLATINUM CABLES CAPE COD MX150, MC501(2) MC1.2KW(10) MC2301(2) MR88, MVP881, MCD1100, MDA1000, C1000C/P/T, MPC1500, ESOTERIC K-01X 30th ANNIVERSARY (BLACK) SACD/CD PLAYER, G02-X CLOCK, HT3F(2) XRT2K, XCS2K, XR27(2) JL GOTHAM v2 SUBS(2) JL FATHOM F113v2 SUBS(4) SOUND ANCHOR STANDS(2) KALEIDESCAPE STRATO & TERRA SERVERS 80-TB, LUMAGEN RADIANCE SCALER, SONY VPH-G90U 4K PROJECTOR, STEWART 120" SCREEN, SONUS FABER STRADIVARI, SILENZIO MUSIC SERVER, FORTRESS SEATING, WW PLATINUM CABLES Analog Rig: CLEARAUDIO INNOVATION WOOD, UNIVERSAL ARM w/ Da VINCI' CART, 2nd UNIVERSAL ARM w/ GOLDFINGER STATEMENT CART, HRS-MXR REFERENCE RACK-GLOSS BLACK w/ M3X SHELVES, AESTHETIX RHEA SIG PHONO-PRE, BRYSTON BHA-1 HEADPHONE AMP, WW PLATINUM CABLES Reference System: BURMESTER 911MK3 AMP(3), 088 PRE-AMP, 089 CD PLAYER, 100 PHONO PRE-AMP, 948 POWER CONDITIONER, ACCUPHASE DG-68 VOICING EQUALIZER, AVID ACUTUS REFERENCE SP TT, GRAHAM PHANTOM II SUPREME ARM, BENZ MICRO LP-S CART, GRANDIOSO P1X/D1X STACK, G1X RUBIDIUM MASTER CLOCK, N05 NETWORK PLAYER, SILENZIO MUSIC SERVER, HRS-SXR CUSTOM RACK w/ M3X SHELVES, SONUS FABER AIDA SPEAKERS, JL FATHOM F113v2 SUBS(2) SOUND ANCHOR STANDS(2) WW PLATINUM CABLES Library System: GRANDIOSO M1 MONOBLOCK AMPS, C1 LINESTAGE PRE-AMP, K1X CD/SACD PLAYER, G1 MASTER RUBIDIUM CLOCK, E02 PHONO-PRE, SILENZIO MUSIC SERVER, AERIAL ACOUSTICS 20T V2, AERIAL SW12 SUBS(2), CANTON REF K1’s, VPI HRX TT w/ SDS POWER SUPPLY, ORTOFON CADENZA BLACK CART, KLAUDIO RCM, SHUNYATA DENALI 6000/S v2, SHUNYATA OMEGA QR’s, WW PLATINUM CABLES Esoteric/Bryston System: ESOTERIC C02-X PRE-AMP, P-02X TRANSPORT, D02-X DAC, G02-X CLOCK, BRYSTON 28B3 CUBED MONOBLOCK AMPS(4), BRYSTON BHA-1 HEADPHONE AMP, SHUNYATA DENALI 6000/S v2(2) EVEREST 8000 POWER CONDITIONER(2) ALTAIRA CG & SG HUBS, AMR-DP777-SE DAC, SILENZIO MUSIC SERVER, TAD REFERENCE ONE MK2 LOUDSPEAKERS, QUADRASPIRE RACK, WW PLATINUM CABLES Accuphase/Canton System: ACCUPHASE E800 INTEGRATED, DP570 CD/SACD PLAYER, T1200 FM STEREO TUNER, DG-68 VOICING EQUALIZER, PS530 POWER SUPPLY, CANTON REF K3’s, CANTON REF K5’s, SILENZIO MUSIC SERVER, HRS MXR REFERENCE MAHOGHANY RACK w/ M3X2 SHELVES, WW GOLD CABLES |
#9
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MS750 problem???
Take a look at the thread I reference above. There is a lot of info about the power supply and around post 90 there are pics of the caps. I'm sure it would be at least helpful to your electronic repair guy.
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#10
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