KT-1000 ( TRIO-Kenwood )
[Outline] [Adjust separation and pilot cancellation level] [Adjust SCA cancellation level]
[Add inductance of OSC coil]
Fig1. Front view.
| Trouble | Cause | Repair and adjustment |
| All of the function switchs didn't work. | The contacts of the switchs were oxidized. | Decomposed and polished contacts. |
| 1st L.O frequency was a few MHz upper than required frequency. | Decreasing capacitance of a trimmer capacitor at the 1st L.O. tunk circuit. | Replace the trimmer capacitor. |
| Frequency range of the 1st L.O. was narrower than the required range. | The inductance of OSC coil was lower than the proper value. | Add 1/8 turn by each end of OSC coil. Adjust the frequency tracking between RF amplifier and 1st L.O. |
| No oscillation of the record calibrator. | The contact of the oscillation level VR were oxidized. | Adjust again the oscillation level to -6db of 75kHz modulation signal. |
| - | - | Adjust separation and pilot cancellation level. |
| - | - | Adjust SCA cancellation level.. |