Teletype 43K001/AAA, Repair Manual

Page: 31 / 82

MANUAL 525, 2-17
410741 CIRCUIT CARD COMPONENT LAYOUT
ILS
®
1 2 , 4
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20
A
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5
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0� 0 0 0�
.
L
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t-
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SPEED -
CPS
B
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3
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M:
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....
:
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r---,
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410741
I
I
I
I
L----...J
I I
COMPONENT IDENTIFICATION AND LEAD DESIGNATION
MLA2
MLA3
MLA4
14
13
12
11
10
9
8
MLA1
MLB1
MLB2
MLB3
MLB4
STATIC CIRCUIT RESISTANCE (See Note)
CONNECTOR TERMINAL
P107-8 (+5
V)
P107-2 (-12
V)
REFERENCE POINT
P107-4 (logic gnd)
P107-4 (logic gnd)
16
15
14
13
12
11
10
9
RESISTANCE
LO
HI
22 ohms 80 ohms
Infinity Infinity
Note: Take resistance reading, reverse meter leads and take second resistance reading.