AS REQUESTED - HAFLER P-500 PC-20 SEMICONDUCTOR REPAIR KIT. THIS KIT CONTAINS ALL THE SEMICONDUCTORS NEEDED TO UPGRADE OR REPAIR THE PC-20 DRIVER BOARD. GOOD FOR ANY REVISION. THIS KIT CONTAINS THE FOLLOWING QUALITY SEMICONDUCTORS FOR BOTH CHANNELS OF THE PC-20 DRIVER BOARD. D101 THRU D108, Q101 THRU Q109, AND IC101 THRU IC107 (26 TOTAL SEMICONDUCTORS)

COMES WITH SCHEMATIC, PARTS LIST, AND PC-BOARD PICTORIAL SHOWING LOCATION. THERE WERE 4 REVISIONS TO THE BOARD BUT ONLY ONE PRINTING SO SLIGHT PLACEMENT POSITIONS SHOULD BE EXPECTED AND YOU MIGHT HAVE PARTS LEFT OVER AS KIT COVERS ALL REVISIONS. THANKS FOR LOOKING!