REV CSection 4 • Repair Procedures June 20054 - 20 TMZ-34/19 Part No. 52075Ground ControlsTMZ-34 models manufactured in the 1998 and1999 model years (from serial number T3498-001to T3499-769) were originally equipped withground controls boxes containing three printedcircuit boards. Machine functions are activatedusing push buttons on the exterior of the box.Beginning with the 2000 model year (from serialnumber T3400-001 to date), the ground control boxwas changed to a two-board configuration. Thepush buttons used to activate machine functionson earlier models were replaced with a membraneoverlay decal, mounted on the exterior of the box.N.C.N.O.N.O.KS1KEYSWITCHP1EMERGENCYSTOPD7VOLTAGEREGULATORdefa b cFrom serial number T3498-001 to T3499-769a voltage regulator D7b CPU circuit board U17c connector circuit board U21d key switch KS1e Emergency Stop button P2f key pad circuit board U15From serial number T3400-001 to datea DIP switch SW25Ab DIP switch SW25c connector circuit board U21d key switch KS1e CPU/display circuit board U22f voltage regulator D7g Emergency Stop button P2N.C.N.O.N.O.SW25DIP SWITCHSW25ADIP SWITCHD7VOLTAGEREGULATOR12348 57 6 12348 57 6a b cP1EMERGENCYSTOPKS1KEYSWITCHg f e d800-610-4101ActionRental.com
