#advancedmusicsystemsburnley

[piscineatokyo]

. . Fixing @ar_institute_fr 's #AMSNeve #DMX1580S not booting up at all 😥(cont') . As promised in the previous insta video post, here are some of the differences between the old, wrong arrangement of the Harmoniser ribbon cables (first pic), leading to all kinds of weird noises and glitches, and the correct one (second photo) which makes the unit work again 😊👌😍 . #AMSDMX1580S #AMSDMX1580 #AdvancedMusicSystems #AdvancedMusicSystemsLtd #AdvancedMusicSystemsBurnley #VintageDigitalDelay #Repair #Fix #VintageElectronics #EarlyDigital #AbbeyRoadInstituteFrance #AbbeyRoadInstitute #StudioPiscineATokyo #PiscineATokyo #TheGoodDoctorPrager #LeBonDocteurPrager https://www.instagram.com/p/BugadiNlF0D/?utm_source=ig_tumblr_share&igshid=11r0t3ur648k1

[piscineatokyo]

Fixing @ar_institute_fr 's #AMSNeve #DMX1580S not booting up at all 😥(cont') . First pic shows this section of the board as I discovered it: the replacement battery is not if the correct power value, and some of the original components next to it still clearly present corroded solder joints from the old battery leakage... Not to mention that the - leg of the replaced battery has been somewhat badly soldered: the lower part of the photo shows that the pad has not been completely cleared off of corrosion prior to soldering. That's why the solder joint doesn't cover the entire pad as well as its shape looks more like a "ball" instead of a small "volcano", leading to fragile mechanical and electrical links 👎 . Second pic shows the same section of the Processor Board after replacement of the above mentioned components: battery is now the correct, 150 mA/h type, nearby resistors, transistors and capacitor are new (as well as their solder joints), and the three pads of the battery have been completely cleaned before being soldered so that their joints are... well, approaching perfection, aren't they? ☺️☺️☺️ . All of this work now ensures that the reset circuitry works fine at each start-up (previously, the CPU would restart itself randomly, or even show a blinking start-up screen, being permanently reset/started/reset/ etc.). . NB: yeah, in the two previous posts about this unit I wrote that it didn't start-up at all. In the meantime, I discovered that, by removing some of the other boards, the CPU was able to sometimes boot-up correctly... confirming BTW the first diagnosis of a faulty +5V regulation section, which probably has one or more tired power devices: will still have to find which ones. . #AMSDMX1580S #AMSDMX1580 #AdvancedMusicSystems #AdvancedMusicSystemsLtd #AdvancedMusicSystemsBurnley #VintageDigitalDelay #Repair #Fix #VintageElectronics #EarlyDigital #AbbeyRoadInstituteFrance #AbbeyRoadInstitute #StudioPiscineATokyo #PiscineATokyo #TheGoodDoctorPrager #LeBonDocteurPrager https://www.instagram.com/p/Bubb5cDFM5t/?utm_source=ig_tumblr_share&igshid=tdupbv059bjr

[piscineatokyo]

. . Fixing @ar_institute_fr 's #AMSNeve #DMX1580S not booting up at all 😥 . First picture shows an unacceptable, ~800mV 100 Hz ripple on the +5V supply rail. First researches have shown that the SMPS section is almost surely faulty ☹️ . Second picture partially confirms the above diagnosis: this 4700uF/16V filtering cap on the SMPS card looks much tired to me... 😰 . @abbeyroadinstitute @abbeyroadstudios . . #AMSDMX1580S #AMSDMX1580 #AdvancedMusicSystems #AdvancedMusicSystemsLtd #AdvancedMusicSystemsBurnley #VintageDigitalDelay #Repair #Fix #VintageElectronics #EarlyDigital #AbbeyRoadInstituteFrance #AbbeyRoadInstitute #StudioPiscineATokyo #PiscineATokyo #TheGoodDoctorPrager #LeBonDocteurPrager https://www.instagram.com/p/BubIYV2FD5U/?utm_source=ig_tumblr_share&igshid=154gtfplamicv

[piscineatokyo]

. . New episode in the last "Another dead #AMSNeve #RMX16 arrived at the workshop" series 😉 . Now that the Reset/Memory Protect circuitry has been completely replaced, especially this dead C3V9 Zener diode (on the center picture), this electronic section finally functions as expected... . ...and then can the CPU boot up correctly, at last!!! 😊😊😊👌👌👌👍👍👍 . Forthcoming step: testing the audio, naturally 😉 . #AMSRMX16 #AdvancedMusicSystems #AdvancedMusicSystemsLtd #AdvancedMusicSystemsBurnley #VintageDigitalReverb #Repair #Fix #VintageElectronics #EarlyDigital #StudioPiscineATokyo #PiscineATokyo #TheGoodDoctorPrager #LeBonDocteurPrager https://www.instagram.com/p/Bt8FVzrFtGc/?utm_source=ig_tumblr_share&igshid=1jkga7dn84zp2

[piscineatokyo]

. . Follow-up to the previous "Another dead #AMSNeve #RMX16 arrived at the workshop" post . Reset and memory sections of the CPU board are now clean and free of most of the corrosion from the old battery leakage 👌😊 . Next step: repopulate the PCB with fresh-new components . #AMSRMX16 #AdvancedMusicSystems #AdvancedMusicSystemsLtd #AdvancedMusicSystemsBurnley #VintageDigitalReverb #Repair #Fix #VintageElectronics #EarlyDigital #StudioPiscineATokyo #PiscineATokyo #TheGoodDoctorPrager #LeBonDocteurPrager https://www.instagram.com/p/Bt6R9vUBNw9/?utm_source=ig_tumblr_share&igshid=prko9y2inriw

[piscineatokyo]

. . Another dead #AMS #RMX16 just arrived at the workshop . On power up, screen stays blank and all front panel LEDs stay lit: typical CPU boot-up issue 😔 . After removing the upper lid, a close inspection of the Processor board reveals what might probably be the cause of the fault: battery was replaced, for sure, but not up to my repair standards... for sure, too! 👎 . Will have to first fix that, as well as one of the two SMPS board's large filter caps which is not of the correct value (is 3,300uF, should be 4,700uF...) . #AMSRMX16 #AdvancedMusicSystems #AdvancedMusicSystemsLtd #AdvancedMusicSystemsBurnley #VintageDigitalReverb #Repair #Fix #VintageElectronics #EarlyDigital #StudioPiscineATokyo #PiscineATokyo #TheGoodDoctorPrager #LeBonDocteurPrager https://www.instagram.com/p/Bt5vy9kl1XZ/?utm_source=ig_tumblr_share&igshid=1buj7otzp8ufn

[piscineatokyo]

. . New fan 👌replacing the 34-y.o., tired, original one that was barely blowing air out of the unit... . Of course, used with the very same part reference, from Papst Motoren, the famous german fans and motors manufacturer 😉 . #AMSRMX16 #AdvancedMusicSystems #AdvancedMusicSystemsLtd #AdvancedMusicSystemsBurnley #VintageDigitalReverb #Repair #Fix #VintageElectronics #EarlyDigital #PapstFans #PapstMotoren #PapstMotors #StudioPiscineATokyo #PiscineATokyo #TheGoodDoctorPrager #LeBonDocteurPrager https://www.instagram.com/p/BtJlSHJBRvh/?utm_source=ig_tumblr_share&igshid=q0y80qtzjojc

[piscineatokyo]

. . New crystal oscillator with the correct frequency of 6.144 MHz and the display do not flicker anymore 👍😉 . Front panel of this #AMSNeve #RMX16 completely cleaned, too 😊(not to mention that the display's plastic red filter was way too loose, as its glue had lost a great deal of its power since 1985... so I glued it again properly) . #AMSRMX16 #AdvancedMusicSystems #AdvancedMusicSystemsLtd #AdvancedMusicSystemsBurnley #VintageDigitalReverb #Repair #Fix #VintageElectronics #EarlyDigital #StudioPiscineATokyo #PiscineATokyo #TheGoodDoctorPrager #LeBonDocteurPrager https://www.instagram.com/p/Bs721BnBk02/?utm_source=ig_tumblr_share&igshid=pjrgmpknzml3

[piscineatokyo]

. . The working front panel of the #AMSNeve #RMX16 mentioned in the previous post 😊 . #AMSRMX16 #AdvancedMusicSystems #AdvancedMusicSystemsLtd #AdvancedMusicSystemsBurnley #VintageDigitalReverb #Repair #Fix #VintageElectronics #EarlyDigital #StudioPiscineATokyo #PiscineATokyo #TheGoodDoctorPrager #LeBonDocteurPrager https://www.instagram.com/p/BsyzFxMhhog/?utm_source=ig_tumblr_share&igshid=1qx6sdeii2y2l

[piscineatokyo]

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A post shared by Jonathan Prager (@piscineatokyo)

. . Fixing @ar_institute_fr 's #AMSNeve #DMX1580S not booting up at all 😥(cont') . So... looks like previous audio issues are now solved, aren't they? 😉 . How? "simply" by putting almost all ribbon cables' connectors back into their CORRECT, corresponding places inside the Harmoniser section!!!! Previous repair tech had missed all that up, hence the strange behavior of the audio path in my last insta video. . Didn't notice that at first glance because not only did I focus on the PSU ripple issue, but also because there are so many ribbons that are interconnected that it's not necessarily obvious to see if they're rightfully located... . Next post will show the difference between the old, wrong arrangement of ribbon cables and the correct one, BTW 😉 . #AMSDMX1580S #AMSDMX1580 #AdvancedMusicSystems #AdvancedMusicSystemsLtd #AdvancedMusicSystemsBurnley #VintageDigitalDelay #Repair #Fix #VintageElectronics #EarlyDigital #AbbeyRoadInstituteFrance #AbbeyRoadInstitute #StudioPiscineATokyo #PiscineATokyo #TheGoodDoctorPrager #LeBonDocteurPrager https://www.instagram.com/p/BugYMchIkSo/?utm_source=ig_tumblr_share&igshid=em7obt1yfrhs

[piscineatokyo]

Fixing @ar_institute_fr 's #AMSNeve #DMX1580S not booting up at all 😥(cont') . WELL WELL WELL!!! DMX is starting up again, at last!!! Now that I've replaced the original, probably tired power MOSFET transistor of the SMPS board, +5V rail is finally back to normal, so the CPU can boot up correctly! 😊☺️👌👍 (see more detailed, next insta post, BTW) . Now that the unit starts up fine, one can hear that it still doesn't work as expected, audio-wise: no pitch-shifting, delay is permanently maxed out, horrible noises when using the nudge keys, and channel A works on the input side but nothing on its output side... 😰😰😰 . ...meaning there's still A LOT of work to do before this DMX1580S will be fully functional, again 😪 . #AMSDMX1580S #AMSDMX1580 #AdvancedMusicSystems #AdvancedMusicSystemsLtd #AdvancedMusicSystemsBurnley #VintageDigitalDelay #Repair #Fix #VintageElectronics #EarlyDigital #AbbeyRoadInstituteFrance #AbbeyRoadInstitute #StudioPiscineATokyo #PiscineATokyo #TheGoodDoctorPrager #LeBonDocteurPrager https://www.instagram.com/p/BugH2mJoUiz/?utm_source=ig_tumblr_share&igshid=4cgqde3ikfsa

[piscineatokyo]

. . Another #AMSNeve #DMX1580S arrived at the workshop: @ar_institute_fr 's delay line is not booting up at all 😥 . Will the Good Doctor Prager find the culprit?... stay tuned 😶 . @abbeyroadinstitute @abbeyroadstudios . #AMSDMX1580S #AMSDMX1580 #AdvancedMusicSystems #AdvancedMusicSystemsLtd #AdvancedMusicSystemsBurnley #VintageDigitalDelay #Repair #Fix #VintageElectronics #EarlyDigital #AbbeyRoadInstituteFrance #AbbeyRoadInstitute #StudioPiscineATokyo #PiscineATokyo #TheGoodDoctorPrager #LeBonDocteurPrager https://www.instagram.com/p/BuZRqasIueZ/?utm_source=ig_tumblr_share&igshid=14qaz2l0quk0e

[piscineatokyo]

. . Last episode of the last "Another dead #AMSNeve #RMX16 arrived at the workshop" series 😉 . Short video showing that this RMX16 is now fixed and works right ☺️😊 . #AMSRMX16 #AdvancedMusicSystems #AdvancedMusicSystemsLtd #AdvancedMusicSystemsBurnley #VintageDigitalReverb #Repair #Fix #VintageElectronics #EarlyDigital #StudioPiscineATokyo #PiscineATokyo #TheGoodDoctorPrager #LeBonDocteurPrager https://www.instagram.com/p/Bt-yofOoEFL/?utm_source=ig_tumblr_share&igshid=1tyj1hhf327g7

[piscineatokyo]

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A post shared by Jonathan Prager (@piscineatokyo)

. . #AMS #RMX16 is now ready to go back home 😊 . (don't get fooled by the strange looking display with the Chorus algorithm: display refresh rate is a little bit slower in that mode, that's why it more or less catches up with the video frame rate 😉) . #AMSRMX16 #AdvancedMusicSystems #AdvancedMusicSystemsLtd #AdvancedMusicSystemsBurnley #VintageDigitalReverb #Repair #Fix #VintageElectronics #EarlyDigital #StudioPiscineATokyo #PiscineATokyo #TheGoodDoctorPrager #LeBonDocteurPrager https://www.instagram.com/p/BtJn01gDRH3/?utm_source=ig_tumblr_share&igshid=1x36zr6tq2irr

[piscineatokyo]

. . DMX1580S is back at Marlon B.'s studio! 😊👍 . #AMSNeve #AdvancedMusicSystems #AdvancedMusicSystemsLtd #AdvancedMusicSystemsBurnley #DMX1580 #DMX1580S #AMSDMX1580S #VintageDigitalFXBox #VintagePitchShifter #VintageDigitalDelayLine #Repair #Fix #VintageElectronics #EarlyDigital #MarlonBParis #StudioMagnetica #StudioMagneticaParis #StudioPiscineATokyo #PiscineATokyo #TheGoodDoctorPrager #LeBonDocteurPrager https://www.instagram.com/p/BpZtKNoBTNA/?utm_source=ig_tumblr_share&igshid=186njfib7fusu

[piscineatokyo]

. . Marlon B.'s DMX1580S finally works! 👌👌👌 . #AMSNeve #AdvancedMusicSystems #AdvancedMusicSystemsLtd #AdvancedMusicSystemsBurnley #DMX1580 #DMX1580S #AMSDMX1580S #VintageDigitalFXBox #VintagePitchShifter #VintageDigitalDelayLine #Repair #Fix #ABI #ABILinearMasterCompact #ICTester #LinearMasterCompactICTester #VintageElectronics #EarlyDigital #MarlonBParis #StudioMagnetica #StudioMagneticaParis #StudioPiscineATokyo #PiscineATokyo #TheGoodDoctorPrager #LeBonDocteurPrager https://www.instagram.com/p/BpZVfFPBVUq/?utm_source=ig_tumblr_share&igshid=112zam3ietszt