Radio Shack TRS-80 Service Manual page 69

RS·232C PC BOARD PARTS LIST
MANUFACTURER'S RADIO SHACK
SYMBOL DESCRIPTION
PART NUMBER PART NUMBER
CAPACITORS
Cl
lOJlF, 16V, radial (optional)
832~101 ACC106QOAP
C2
10pF, 16V, radial (optional)
832~101 ACC1060DAP
C3 O.lpf. SOV, monolithic, radial 8384104
ACC104QJAP
C4
O.lp.F, SOV. mOOlolithic, radial
8384104 ACC104QJAP
CS
O,lJJ.F, 50V, monolithic, radial
8384104
ACC104QJAP
C6
O.lJJ.F, 50V, monolithic, radial
8384104
ACC104QJAP
C7
0.1,l.1F, 50V, monolithic, radial
838-4104 ACC104QJAP
C8
10,l.lF,16V,rCldial
832~101
ACC106QDAP
C9 10,l.lF,16V,radial A32-6101
ACC1060DAP
CONNECTORS
PI
OB-25 Connector
851-9030
-----
P2 20 pos, right angle
851-9078
-------
P3
4 pos. right angle
851·9079
AJ6977
INTEGRATED CIRCUITS
Ul
BRl941·L, Dual Baud C
804·6941 AMX3921
U2
TRl602B, UART
804-5602 AMX3B65
U3
74LS244,~aIB~
802.0244 AMX3864
U.
74L$367. Hex Buffer
802.0367 AMX3567
US
74LS367, Hex Buffer
802.{)367
AMX3567
U6 74LS174,Quad "0" Flip-Flop
802.0174
AMX3565
U7
7404, Hex Inverter
-----
AMX3655
U8
74LS139, Dual Decoder 802.{)139
AMX3800
U.
74LS368. Hex Buffer
802.Q368 AMX3568
Ul0
74LS174,Quad "0" Flip·Flop
802.Q174 AMX3565
Ull
MC1489, Quad Line Driver
805.Q189
AMX3868
U12
MCI488. Quad Line Driver
805.Q188
AMX3867
U13
74 LS27 , NOR gate
802-0027
---------
Ul' 74LS3B, NAND 8uffer
802.o03B AMX4328
U15
MC1489, Quad Line Driver
805.0189 AMX3868
U16 MC148B, Quad Line Driller
805.0188 AMX3867
RESISTORS
R1
4.7K, 1/4W, 5% 820-7247
AN0247EEC
R2
4.7K, 1/4W, 5% (optionaH
820·7247
AN0247EEC
R3
62K, 1/4W, 6% (optional!
- - -
-------
R' 4.7K, 1/4W, 5%
820-7247
AN0247EEC
MISCELLANEOUS
Cable, 20 pes .. 4.5", flat 845·9020 AW2631
Socket, 18 pin
850·9006
AJ6701
Socket, 40 pin
850-9002 AJ6580
62