Radio Shack Realistic PRO-34 Service Manual page 47

SEMICONDUCTOR LEAD IDENTIFICATION AND
IC CIRCUIT DIAGRAM
Integrated Circuit Lead Identification
ICl GRE-0620A
SEG21
SEG22
SEG23
SEG24/POO
SEG25/P61
SEG251 P62
SEG27/ P63
SEG28/ P70
SEG29/P71
SEG30/P72
SEG3 1/P73
SBTB IPB2
SBI B/PB3
SBOB/ PCO
SBTA/PC I
SBIA/PC2
~/PC3
TCIB I PBO
IROI /PB I
IROO
SYNC
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42
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40
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39
68 38
69
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70
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30
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26
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83
23
84
22
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COM2
COMI
COMO
VLC3
VLC2
VLC I
P63
P52
P51
Pro
P43
P42
P41
F'4O
P33
P32
P31
P30
P23
P22
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INTR CONT
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