Panasonic NV series VHS - M type video recorder wear fault maintenance methods of systems -Service Manual Download|Circuit Download|Download Drawings|schematic download|route map download|free download user manual

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Panasonic NV series VHS - M type video recorder wear fault maintenance methods of systems

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2. The following the spiral guide line in the drum as a benchmark, to observe the Pl (below), P2 (location), spiral guide line on the drum (location), P3 (location), P4 (below) the five anchor point is correct, look under the tape edge is in a spiral line above or below, if the tape edge in it, it will rotate with the guide pin P2 and P3 bottom fastening screw loosening, with homemade screwdriver adjustment clockwise P2, P3 the upper guide pillar, and make tape underneath and spiral flat, and vice versa.

(3) the tape into or out of the side limit guide pin (P1 and P4) height adjustment.

The anchor point of the drum helical and P2, P3 rotation on the two guide post anchor point after preliminary adjust good, again under the observation of P1 and P4 guide pin anchor point, look at the tape down the steps of the edge and the two locating points is straight, if the wrong or not straight, can adjust the P1 and P4 limit carefully guide pin the upper nut, adjusted to tape the edge and the anchor point under the two steps straight so far. Note: limit guide pillar P1 and P4 is to ensure that go with three elements (such as, parallel, no buckling) is an important part of, if the two guide pin not disorderly, don't adjust it, can also be both as a reference point.

Five anchor point (4) of the fine adjustment.

For five of the anchor point height above the coarse adjustment

After connecting TV or monitor and video recorder in the replay state, carefully check the tape and images, earnestly repeatedly fine-tuning, under normal circumstances should be on magnetic tape, under smoothly through the five anchor point, namely, tape, should not be below the edge, the image clarity stability, no distortion, no noise point/zone. If the image on the screen upper part distortion, still need to adjust the P2 rotating guide pin. If the lower distortion, still need to adjust the P3 rotating guide pin. If the image appears several central noise zone, should adjust Pl limit guide pin. The last of each guide pillar should be tighten screw.

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