Sorvall TC6, Service Manual

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TC6 ® Printed Circuit Boards & Schematic Diagrams
4-23
Table 4-3. Component Description,
Display Printed Circuit Board, PN 78178 Revision 2
(refer to figure 4-8)
Component Description
C1, C2, C3, C4, Capacitor, 0.01
µ
F, 50V
C5, C6, C7, C8,
C9, C10, C11,
C13, C14, C15
C12 Capacitor, 47
µ
F, 6V
CR1, CR2, Diode, IN914 or IN4148
CR3, CR4
DS1, DS2 LED, Green, Diffused
R1, R2 Resistor, 4.7 K
Ω
, 1/4W, 5%, Carbon Comp.
R3, R4, R5 Resistor, 82
Ω
, 1/4W, 5%, Carbon Comp.
U1, U2, I.C. CMOS, BCD Counter, MC14510BP
U3, U4
U5 I.C., CMOS, Octal Bustransceiver, 74HC245AN
U6 I.C., CMOS, Quad NAND, 74HC132AN
U7 I.C., CMOS, Dual Multivibrator, 74HC4538N
U8 I.C., CMOS, Schmitt Trigger, MC14106BCP
U9 I.C., CMOS, Quad or, 2-Input, 74HC32AN
U10, U13 I.C., CMOS, BCD Decoder/Driver, Harris CA3161E
U11, U12, U15, I.C., Display, 7 Segment, HP5082-7651
U16, U17, U18
U14 I.C., Display, 4 1/2 Digit, Harris ICM7225IPL