Radio Shack TRS-80 Model 4 Technical Reference Manual

95
PARTS LIST RS-232C PC BOARD
SYMBOL DESCRIPTION
MANUFACTURER’S
PART NUMBER
RADIO SHACK
PART NUMBER
CAPACITORS
C1 l0µF, 16V, radial (optional) 832-6101 ACC106QDAP
C2 l0µF, 16V, radial (optional) 832-6101 ACC106QDAP
C3 0.1µF, 50V, monolithic, radial 838-4104 ACC104QJAP
C4 0.1µF, 50V, monolithic, radial 838-4104 ACC104QJAP
C5 0.1µF, 50V, monolithic, radial 838-4104 ACC104QJAP
C6 0.1µF, 50V, monolithic, radial 838-4104 ACC104QJAP
C7 0.1µF, 50V, monolithic, radial 838-4104 ACC104QJAP
C8 l0µF, 16V, radial 832-6101 ACC106QDAP
C9 l0µF, 16V, radial 832-6101 ACC106QDAP
CONNECTORS
P1 DB-25 Connector 851-9030 ------
P2 20 pos. right angle 851-9078 ------
P3 4 pos. right angle 851-9079 AJ6977
INTEGRATED CIRCUITS
Ul 8R1941-L,Dual Baud C 804-6941 AMX3921
U2 TR1602B, UART 804-5602 AMX3865
U3 74LS244, Octal Buffer 802-0244 AMX3864
U4 74LS367, Hex Buffer 802-0367 AMX3567
U5 74LS367, Hex Buffer 802-0367 AMX3567
U6 74LS174, Quad “D” Flip-Flop 802-0174 AMX3565
U7 7404, Hex Inverter AMX3655
U8 74LS139, Dual Decoder 802-0139 AMX3800
U9 74LS368, Hex Buffer 802-0368 AMX3568
U10 74LS174, Quad “D” Flip-Flop 802-0174 AMX3565
U11 MC1489, Quad Line Driver 805-0189 AMX3868
U12 MC1488,Quad Line Driver 805-0188 AMX3867
U13 74LS27,NOR gate 802-0027 -------
U14 74LS38, NAND Buffer 802-0038 AMX4328
U15 MC1489, Quad Line Driver 805-0189 AMX3868
U16 MC1488,Quad Line Driver 805-0188 AMX3867
RESISTORS
R1 4.7K, 1/4W, 5% 820-7247 AN0247EEC
R2 4.7K, 1/4W, 5% (optional) 820-7247 AN0247EEC
R3 6.2K, 1/4W, 5% (optional) -------- AMX4658
R4 4.7K, 1/4W, 5% 820-7247 AN0247EEC
MISCELLANEOUS
Cable, 20 pos., 4.5”, flat 845-9020 AW2631
Socket, 18 pin 850-9006 AJ6701
Socket, 40 pin 850-9002 AJ6580

Radio Shack TRS-80 Model 4 Specifications

General

Brand	Radio Shack
Model	TRS-80 Model 4
Category	Desktop
Language	English