Sharp BE-2520 Service Manual page 41

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2SC641
2801472
280945
1S1588L1
TRNSISTOR
2 |
CE
ws
2801826
T4LS00
181834
1SS41B
2SC560
2802334
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7T4LS504
TC40HO04
NJM2903
@ HD14503(MC14503)
@ 74LS05
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@ 74.832
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OUTPUTS
sg
Zz
ay
INPUTS
G2A+G2B
T4LS$138
G1 G
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ID
/ *G2
OUTPUT
Y4
ENABLE
IDATA OUTPUTS
G2A G2B Gl Y7 GN
Veo YO Yi Y2 = Y8
SELECT
@ 74LS138 (3-8 Decoder )
BE—2520
7-4. Main PWB layout
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