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"The Matrix-12 is perfectly stable when turned on since the electronic part of the repair job is complete ( approx. 6 weeks ).
110/220v switch at the input ( currently set at 220v ofc ;) )
MIDI tested under Ableton Live, Xplorer and as a master keyboard.
Input for functional expression pedal tested.
Aftertouch is working great, and the 12 individual outputs work as they should
OS version: CPU: 1.1
Voices: 1.4
Work done on it:
PSU Board:
-The connectors solders have all been reflowed
-Replacement of electrolytic capacitors on the power supply (16) (Nichicon 105 ° C)
-Replacement of resistors (1w and more)
-Replacement of components To-220 (regulators + 12 / -12 and -5, transistors, diodes) new mica insulators
Voiceboards:
-Replacement of 4 defective CEM3374
-Replacement of electrolytic capacitors (144): Nichicon 105 ° C
-The connectors solders have all been reflowed
- CEMs 3372/3374 have been pulled out of their socket, and legs have been cleaned
Display Board:
-New ICs LB1290 ( display driver) w/ support (2)
-New Noritake FG405B2 VFD screen and jumpers to repair damaged tracks
-Replacement of electrolytic capacitors (2): Nichicon 105 ° C
- Disassembly / cleaning of ALPS potentiometer and encoders.
-51 new Marquardt 6425.1101 switches + new adapted caps
CPU Board:
-New battery CR123A on support
-Installation and adaptation of 9 new Marquardt 6425.1101 switches
-Replacement of electrolytic capacitors (8): Nichicon 105 ° C
-The connectors solders have all been reflowed
Others:
-Fans have been changed by new ones : more efficient and less noisy
-Copy of EPROMs is available ( .bin )
-Bank of KidNepro loaded + preset customs (single / multi)
-New 1mm screen protectors (custom made - acrylic )
-New Wooden flanks by Synths&Wood (UK)
-New jack nuts (individual outputs)
-New M4 screws (A4 quality) for wooden flanks
-External cleaning
-Keybed, keys and keys contacts have been cleaned
-Brand new flycase"
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