MATRIXSYNTH: ARP Pro-DGX (Repaired/Refurbished)

Friday, January 15, 2021

ARP Pro-DGX (Repaired/Refurbished)



via this auction

Pics of the inside below.

"This Arp Is fully working and has been repaired as necessary. Cosmetically its in Okay condition. See pictures for biggest scratches on the top of the case. Bottom is missing rubber feet for one of the large bolts, the other bolt’s rubber is soon to fall apart as well.

Repairs:
All tantalum capacitors have been replaced with same or better spec Nichicon capacitors. All power supply axial capacitors are replaced with same or higher rated Vishay capacitors.

New thermal compound was applied to power supply heat sink when re-installing power supply.

Board C (filter board) Has had 4 RCA CMOS switches removed and replaced with modern CMOS chips in sockets.

4075 VCF has had tantalum capacitors replaced and the filter mod to increase filter response. (Filter mod is correcting the low cut off frequency by changing out some resistors.)

Keybed has all new key bushings. Keybed has been leveled. Bus bar and key contacts have been straightened and cleaned.

Aftertouch sensor has been disassembled cleaned and repaired and is working.

All switches have been cleaned. Slide pots have been cleaned and lubed."

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