8. ELECTRIC MECHANISM
Error status | #20 | The machine does not stop with the needle at the upper position. |
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| Check/ repair/ adjust |
| Parts to be replaced | ||
3. | Cord defective |
| • | See |
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4. | Power | supply | circuit board | • With P13 (DC18) connectors plugged in |
| Power supply circuit | |
| defective |
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| on the main circuit board, measure the |
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| voltage in the connector on the cable. |
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| Main circuit board |
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| If the voltage across the following pairs of |
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| pins, pins 1 and 2, pins 4 and 5, and pins |
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| 10 and 11 is DC |
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| +15 – 18V for each |
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| 3651Q |
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5. | Main circuit board defective |
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| Main circuit board | ||
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6. | Motor defective |
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| Motor | |
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Error status | #21 | Programming can not be made. |
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| Probable causes |
| Check/ repair/ adjust |
| Parts to be replaced | ||
1. | The programmer connector | • Remove connector P2 (PGM) on the |
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| and its cable are defective. |
| panel PCB and connector P2 on the |
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| programmer PCB, and then return them to |
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| their positions. |
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2. | The programmer is defective. | • Replace the programmer with a new one. |
| Programmer | |||
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3. | Panel circuit board defective | • | Replace the panel circuit board with a new |
| Panel circuit board | ||
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| one. |
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