Diagnostics
Focus Malfunctions
Malfunction |
| Check |
|
| |
No manual focus | 1. Check the FOCUS SHAFT SPRING for the | |
|
| correct tension. |
| 2. | Check the LENS SUPPORT SPRING for |
|
| correct tension. |
| 3. | Check the LENS DRIVE GEAR on the |
|
| FOCUS SHAFT ASSEMBLY for damage |
|
| and install a new part if necessary. |
|
| |
No remote focus (Non Auto Focus models) | 1. Check the REMOTE CORD for damage; | |
|
| use a REMOTE CORD that has no |
|
| damage. |
| 2. | Actuate and hold the REMOTE CONTROL. |
| 3. | Check that the voltage across the FOCUS |
|
| MOTOR is 8.5 V AC. If the voltage is |
|
| correct, install a new FOCUS MOTOR. |
| Check that the secondary voltage on the MAIN | |
| MOTOR is correct. | |
|
| |
No remote focus, RACK SOLENOID | 1. Check that the REMOTE CORD operates | |
ASSEMBLY operates (Auto Focus Models) |
| correctly; use a REMOTE CORD you know |
|
| is good (EC 3). |
| 2. | Actuate and hold the REMOTE CONTROL. |
| 3. | Check that the voltage across the FOCUS |
|
| MOTOR is 8.5 V AC. If the voltage is |
|
| correct, install a new FOCUS MOTOR. |
| 4. | Check the AUTO FOCUS SWITCH |
|
| ASSEMBLY for correct operation. |
| 5. | Check the secondary voltages on the MAIN |
|
| MOTOR. |
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|
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