Panasonic DVC PRO Studio AJ-D950P Service Manual page 684

4-5-5. Noise Cancel Adjustment
Board CUE(H1)
Specification 50M mode Less than -40dBu
25M mode Less than -35dBu
Test Point CUE OUT
Adjustment VR4006, VR4003 (50M)
Point VR4007, VR4004 (25M)
Input Signal
Mode PLAY
Tape No signal recorded Tape
M.EQ Audio Analyzer /Audio precision
(50M Mode)
1. Analyzer setting: Input BPF 600Hz
2. Place the unit in the 50M mode.
3. Confirm that the CUE OUT Level (noise level)
is in the specification.
4. If it is out of specification, adjust VR4006 and
VR4003 so that the noise level is in the
specification
(25M Mode)
1. Analyzer setting: Input BPF 300Hz
2. Place the unit in the 50M mode.
3. Confirm that the CUE OUT Level (noise level)
is in the specification.
4. If it is out of specification, adjust VR4007 and
VR4004 so that the noise level is in the
specification
4-5-6. CUE REC/PB Level Adjustment
Board CUE(H1)
Specification 0dBu ± 1dB
Test Point CUE OUT
Adjustment VR4001
Point
Input Signal 1KHz, 0dBu
Mode REC PLAY
Tape REC/PB Tape
M.EQ Audio Analyzer /Audio precision
1. Place the unit in the 50M mode.
2. Supply a 1kHz, 0dBu signal into the CUE IN
and Record the input signal for a few minutes.
3. During the recording mode, slightly adjust
VR4001.
4. Playback the just recorded portion and confirm
that the CUE OUT level is in the specification.
5. If it is not, repeat step 3, 4.
6. Place the unit in the 25M mode.
7. Supply a 1kHz, 0dBu signal into the CUE IN
and Record the input signal for a few minutes.
8. Playback the just recorded portion and confirm
that the CUE OUT level is in the specification.