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McIntosh Audio A Tradition of Excellence |
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Thread Tools | Display Modes |
#11
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I also waned to quickly mention that I am not entirely sure why re-seating the CPU board fixed my issue. It was not loose and I had not handled or moved my MX-150 for several months. Possibly even over a year.. None of the socket attachments were loose either. In fact, all my fasteners and socket attachments were on with a comparative death grip. The only thing I can think of that may play a role is that the the voltage spike/surge/whatever caused some sort of residual charge to be stored that was messing with the CPU operation and by removing and re-seating the CPU it discharged that residual voltage. Another possibility is perhaps the CPU re-seating caused the motherboard to boot from a lower state (almost like a manual factory reset).
Whatever the reason, it did work and it was a recommended procedure by McIntosh, so it appears they know what they are doing. If any of this gives you a weak stomach, either have your local Mc dealer do it or send it in to McIntosh. I personally MUCH prefered doing this myself vs. waiting for weeks and spending hundreds to have McIntosh do something that only took me 20 minutes to do! Last edited by IM3CPO; 01-29-2018 at 05:15 AM. |
#12
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Thank you for taking the time to write down your very detailed instructions along with the photo, as this will be of great benefit to others.
Great job and happy listening! Ron
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Ron Processor: McIntosh MX170, Amp: Legacy Audio i-V7, Digital: Benchmark DAC3B, Roon Music Player, Oppo UDP-205, Apple TV 4K, Fire TV Stick 4K Max, Analog: Gold Note Pianosa Turntable, Gold Note PH-10 Phono Preamplifier, Donatello MC Cartridge, Speakers: Legacy Audio Signature SE Natural Sapele Pommele, Silverscreen HD Center, JL Audio e112-Gloss Sub |
#13
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Thank you for the detailed instructions! My MX150 has the same symptoms described and I'm trying to reseat the daughter CPU. Unfortunately the photo that were posted no longer work... does anyone have a copy of the photos that went with these instructions?
Thanks |
#14
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FYI: I'm the original poster with the fix, but this was so long ago I may not even have the pictures anymore. I will take a look and see if I can them NAS, but its a bit of a long shot.. Having said this, if you happen to take the top cover off your MX-150, take a picture and post it up and I can see if I can talk you through what to do.
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#15
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Thank you again for the detailed instructions, they made much more sense without the photos once I had it opened up. I've also attached links to recreated photos per your instruction if others run into this issue.
This procedure however did not fix my issue and upon further investigation it appears the relay that switches from standby to main power has tested bad. The symptom of a flashing red LED standby light is just saying that for some reason the secondary CPU has not booted in a certain amount of time which can be caused by any of the following: -Corrupted firmware card -Board needs to be re-seated -physical component failure causing no power I'll update this once I get mine fixed with more details into the relay component failure. Photos to go with instructions for board reseat: https://ibb.co/thYzPt0 https://ibb.co/G3xCY2c |
#16
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Hifi-Monkey… Welcome to AA!
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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 |
#17
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Thanks Ivan!
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