Sorvall TC6, Service Manual, Page: 62 / 109

TC6 ® Printed Circuit Boards & Schematic Diagrams
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Table 4-8. Component Description,
Motor Control Printed Circuit Board, PN 78230 Revision 4 (continued)
(refer to figure 4-18)
Component Description
R9 Resistor, 40.2
ΚΩ
, 1/4W, 1%, Carbon Film
R10 Resistor, 30
ΚΩ
, 1/4W, 5%, Carbon Comp.
R11, R26 Resistor, 1
ΚΩ
, 1/4W, 5%, Carbon Comp.
R12, R14, R16 Resistor, 2.2
ΚΩ
, 1/4W, 5%, Carbon Comp.
R13, R15, R17, Resistor, 470
Ω
, 1/4W, 5%, Carbon Comp.
R23, R24, R25
R18 Resistor, 1.8
ΚΩ
, 1/4W, 5%, Carbon Comp.
R19, R20, R21 Resistor, 1.8
ΚΩ
, 1/4W, 5%, Carbon Comp.
R22 Resistor, 0.05
Ω
, 1/4W, 5%, Wirewound
U1 I.C., Brushless DC Motor Contoller, MC33035P
U2 I.C., Closed-Loop Brushless Motor Adapter
U3 I.C., Photocoupler, Multi-channel
VR1 Regulator, Variable, LM317
— Heatsink, Mounting Plate, Alumium, 0.375 thick
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