Oct 30, 2021
#sequentialcircuitspro1 #sequentialcircuitsprophet5 #prophet5 #proone #vintagesynthesizers (at London, United Kingdom) https://www.instagram.com/p/CVpqCs4Nh7l/?utm_medium=tumblr
seen from China
seen from China
seen from United States
seen from China
seen from Sri Lanka
seen from United States
seen from India
seen from Kenya
seen from United States
seen from Sri Lanka
seen from Germany
seen from United States
seen from United Arab Emirates
seen from United States
seen from Netherlands
seen from United States
seen from Brazil
seen from United States
seen from Sri Lanka
seen from China
#sequentialcircuitspro1 #sequentialcircuitsprophet5 #prophet5 #proone #vintagesynthesizers (at London, United Kingdom) https://www.instagram.com/p/CVpqCs4Nh7l/?utm_medium=tumblr
Getting ready for new project #sequentialcircuitsprophet5 #techmechs #vintagesynthesizer #vintagesynths （在 Beijing） https://www.instagram.com/p/CDRmfcgh6VM/?igshid=10oqdigtajbso
One hell of a restoration project... (cont') . HURRAAAAAYYYYYY!!!! 😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊 . The Prophet-5 Rev1 has come back to life, again... at least has the CPU and logic sections, thanks to the addition of the "Tune Mod" board (for compatibility with the v5.2C software EPROMs)!!!! I am SO relieved... 😊😊😊👍👍👍 . Nonetheless, there are still three main things to solve before the restoration can be completed (with the alignment of the whole unit): first, only three keyswitches of the front panel do not respond; second (naturally), will all the audio synthesis section work correctly? and last but not least: does the restored keyboard work too? . So, stay tuned... if I may say 😉 . #SequentialCircuits #SequentialCircuitsInc #SCI #Prophet5 #SequentialCircuitsProphet5 #SCIProphet5 #Prophet5Rev1 #VintageAnalogSynthesizer #AnalogSynthesizerRestoration #VintageElectronics #Restoration #Repair #JohanDalgaard #StudioPiscineATokyo #TheGoodDoctorPrager https://www.instagram.com/p/BmULKwhgUX5/?utm_source=ig_tumblr_share&igshid=7kdjtqbgoez2
One hell of a restoration project... (cont') . The new "Tune Mod" board freshly populated and just installed in the socket of the "ROM 0" EPROM. . Will this P-5 Rev1 finally start-up correctly with v5.2 software, thanks to the small piggy-back PCB? That is the frightening question indeed... 😞 . #SequentialCircuits #SequentialCircuitsInc #SCI #Prophet5 #SequentialCircuitsProphet5 #SCIProphet5 #Prophet5Rev1 #VintageAnalogSynthesizer #AnalogSynthesizerRestoration #VintageElectronics #Restoration #Repair #JohanDalgaard #StudioPiscineATokyo #TheGoodDoctorPrager https://www.instagram.com/p/BmUKjLsAf4g/?utm_source=ig_tumblr_share&igshid=uz0zb7f5kvjy
One hell of a restoration project... (cont') . Just got in the mail this morning the (manufactured) one small PCB that should make things much better... hopefully! . 😊😊😊 . #SequentialCircuits #SequentialCircuitsInc #SCI #Prophet5 #SequentialCircuitsProphet5 #SCIProphet5 #Prophet5Rev1 #VintageAnalogSynthesizer #AnalogSynthesizerRestoration #VintageElectronics #Restoration #Repair #JohanDalgaard #StudioPiscineATokyo #TheGoodDoctorPrager https://www.instagram.com/p/BmOMh3RARuw/?utm_source=ig_tumblr_share&igshid=1oc6r04lpbhn4
One hell of a restoration project... (cont') . Fresh-new J-wires have been put into place after soldering onto the keyboard PCB. Of course, all eight bus bars have been cleaned thoroughly one by one, as well as the J-wires' plastic holders. . Next step in the keyboard restoration process will be the last one, actually: screwing back the cleaned key tops onto their respective key support 😉 . #SequentialCircuits #SequentialCircuitsInc #SCI #Prophet5 #SequentialCircuitsProphet5 #SCIProphet5 #Prophet5Rev1 #VintageAnalogSynthesizer #AnalogSynthesizerRestoration #VintageElectronics #Restoration #Repair #JohanDalgaard #StudioPiscineATokyo #TheGoodDoctorPrager
(back to) One hell of a restoration project... (cont') . Now on to the keybaord: a restoration project in its own right! After having cleaned the keybed and the keys themselves, now's the time to clean all the remaining hardware... and there are LOTS if it! . #SequentialCircuits #SequentialCircuitsInc #SCI #Prophet5 #SequentialCircuitsProphet5 #SCIProphet5 #Prophet5Rev1 #VintageAnalogSynthesizer #AnalogSynthesizerRestoration #VintageElectronics #Restoration #Repair #JohanDalgaard #StudioPiscineATokyo #TheGoodDoctorPrager
One hell of a restoration project... (cont') PCB4 ready! ;-) (board cleaned and recapped, new 60-way header installed, dead CMOS ICs replaced, and minor issues solved on the solder side of the board, like one resistor broken, another one disconnected on one end, and a the longest wire strap not connected to its expected source...) 😊 #SequentialCircuits #SCI #Prophet5 #SequentialCircuitsProphet5 #SCIProphet5 #Prophet5Rev1 #VintageAnalogSynthesizer #AnalogSynthesizerRestoration #VintageElectronics #Restoration #Repair #JohanDalgaard #StudioPiscineATokyo #TheGoodDoctorPrager