CHAPTER 3
| U26 |
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| Q1~8 |
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D16~23 |
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D16~31 | C |
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OC |
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| U27 |
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| U28 |
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| REF1 | REF2 | J10 | |
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| PHASE 1 | |
| Q1~2 |
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| I01 |
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| PHASE 2 |
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| I11 |
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D24~31 |
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| PHASE 3 |
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| PH1 |
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| PHASE 4 |
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| PH2 |
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| Q3~8 |
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| I12 | SENSE1 |
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| I02 |
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CS MOT (CS7/) | C |
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| RC1 |
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RESET |
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| COMP. IN1 |
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OC |
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| GND | SENSE2 |
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| RC2 | COMP IN2 |
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| U29 | Vcc | U21 |
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| Q1 MOT TETE |
| 1A1 | 1Y2 | P+MOT CHARGEUR |
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D24~31 |
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| Q2 MOT CHARGEUR |
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| P+MOT TETE |
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| Q3 MOT FILM 1 |
| 2A1 | 1Y1 |
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| Q4 MOT FILM 2 |
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| P+MOT FILM |
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CS_IO |
| Q5 BRAKE MOT FILM |
| 2EN | 2Y1 |
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R_W/ | CLK | Q6 CDE ALIM |
| 1EN | 2Y2 | P - MOT FILM |
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Q7 LATCH |
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| OC | CDE SMART |
| VS |
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RESET/ |
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Vdd |
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| 24V Tete (Print Head/Status) | |
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| U28 |
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| VI | GND | VO |
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| K1 |
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Q1 | 4.7k |
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| Vcc |
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| U20 |
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| 240 |
| Ribbon |
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Vcc |
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| Motor |
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SD0 | Q3 | 4.7k |
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SD1 (PP5/PST1) |
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| Print Head |
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SD1 |
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SCLK (PP6/PST2) |
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| Motor |
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SCLK |
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CS POT (PP7/PST3) |
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CS/ |
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| Card Feed |
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| RS/ |
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| Motor |
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| SHDN |
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Figure 3-4. Motor Control Circuitry.
Stepper
Motor
Daughter
Board
