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1 4 3 9 8 7 6 2 | 1 4 3 9 8 7 6 2 |
+5V
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0.1uF E3 | TVS1 |
R61
3.3K
R15
R14
R16
R17
R20
R19
R18
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R21
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10K7
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1K3
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R63
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| 4B |
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| 3B |
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| 14 | R49 |
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| 15 | R48 |
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| 2B |
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| 16 | R47 |
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| 1B |
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IC2
+5V
3.3K 9 | 1 | CN23 |
'$7$ | 2 |
C11 | . |
| SW1 SIGNAL | SW2 SPEED | SW3 TIMER | SW4 UP | SW5 DOWN | SW6 FLTER RESET | SW7 | POWER | |||
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| ||||||||||||
0.001uF |
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+5V | R65 | R60 | R57 | R6 | R56 | R55 | R66 |
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| . | . | . | . | . | . | . |
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| R69 | R35 | C10 |
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| 8 |
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| . | . | VCC | A0 |
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| 6 | TEST | A1 | 3 | R2 |
| TXD | 2 | |
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| SCL | A2 |
| 3 | |||||
R54 |
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| 5 | SDA VSS | 4 | R3 |
| RXD | 4 | |||
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R58
.
11