Sony DVW-790WS/790WSP, DVW-709WS/709WSP manual Checks Play Mode, RF Waveform Check

5-2. Video Tracking Adjustment

Checks

1. PLAY Mode

(1)Set the switch S1-2 on the HN-260 board to ON.

The tracking control becomes operable with this setting.

(2)Play back the ZR2-1/P (from 00 minute to 15 minute segment).

(3)When turning the tracking control (RV1) on the HN-260 board, check that the amplitude of the RF signal of the entrance and exit sides are smaller than the output level at the center. If the RF signal amplitude is bigger than that of center, perform step 5 and higher (drum entrance side or drum exit side).

(4)Turn the tracing control (RV1) and check that the RF waveform is 80% of the maximum output amplitude. Check that the RF wave- form satisfies the specifications 1.

If the specification is not satisfied, perform step 3 and higher (drum entrance side or drum exit side).

2. RF Waveform Check

(1)When moving the unit from horizontal position to vertical position, the RF wave- form satisfies the specifications 1.

If the specification is not satisfied, perform step 3 and higher (drum entrance side or drum exit side).

(2)When the unit returns the horizontal position and repeat the mode change from the EJECT mode to PLAY mode 2 or 3 times, check that the RF waveform during PLAY mode is the same as the pre-PLAY mode, and satisfies the specifications 1. If the RF waveform is changed or the specification is not satisfied, perform step 3 and higher (drum entrance side or drum exit side).

(3)When repeat the mode change from the REV search mode o PLAY mode 2 or 3 times, check that the RF waveform during PLAY mode, and satisfies the specifications 1.

If the RF waveform is changed or the specifi- cation is not satisfied, perform step 3 and higher (drum entrance side or drum exit side).

<PLAY Mode>

A B B’ A’ C’ C

Spec1.: BA x100>80% (Drum at entrance side) CA x100>80% (Drum at exit side)

BB’ x100>90% (Flucuation at drum entrance side) CC’ x100>90% (Fluctuation at drum exit side)

AA’ x100>90% (Fluctuation at drum center)

5-12	DVW-790WS/709WS/707
	DVW-790WSP/709WSP/707P P2V1