Radio Shack TRS-80 Service Manual page 124

SERVO (MOTOR CONTROL) BOARD
PARTS LIST (Cant'd)
(LINEAR SERVO BOARD)
MANUFACTURER'S RADIO SHACK
SYMBOL
DESCRIPTION
PART NUMBER PART NUMBER
PRINTED CIRCUIT BOARD,
8709169
SERVO (MOTOR CONTROL)
CAPACITORS
C1
47 J.lF, 16V, Electrolytic 8326471
C2 47 J.lF, 16V, Electrolytic
8326471
C3 0.1 J.lF, 50V, Axial
8374109
C4 1 .0 J.lF, 35V, Tantalum
8335103
C5
0.01 J.lF, 80V, Axial 8393104
C6 0.022 J.lF, 50V, Axial
8373224
INDUCTOR
L1
3.3 J.lh, 10% 8419005 ACA8059
INTEGRATED CIRCUIT
U1 LM2917N, Frequency to Voltage 8050917 AMX4181
Converter
RESISTORS
R1 20K, 1/4 W, 5% 8207320 AN0306EEC
R2 1M, 1/4 W, 5% 8207510 AN0445EEC
R3 1K,1/4W,5% 8207210 AN0196EEC
R4 1K, Trim Potentiometer 8289210
AP7058
R5 -.
1K, 1/4 W, 5% 8207210 AN0196EEC
R6 150K, 1/4 W, 5% 8200415
R7 470 ohm, 1/4 W, 5% 8207147 AN0169EEC
R8 1K, 1/4 W, 5%
8207210 AN0196EEC
R9 470 ohm, 1/4 W, 5% 8207147
AN0169EEC
R10 1K,1/4W,5% 8207210 AN0196EEC
R11 1 ohm, 1/2 W, 5%
8217001 AN0022EFC
R12 2.2K, 1/4 W, 5%
8217222 AN0216EEC
R13 2 .2K, 1/4 W, 5% 8217222
AN0216EEC
R14 1M, 1/4 W, 5%
8207510 AN0445EEC
TRANSISTORS
01 TIP110, Power
8110110 AMX4331
02 lN4124, NPN
8110124 AMX4178
MISCELLANEOUS
10-pin, Right Angle Header
8519057
AJ6817
Screw, 4-40 x 1/4" (6.35 mm)
8569032 AHD1541
Nut, Hex, 4-40 8579001
AHD7165
117