SECTION 2. ELECTRICAL ADJUSTMENTS
2-1. ALIGNMENT AND ELECTRICAL ADJUSTMENT
For these adjustment, use the equipment mentioned below and proceed by using the alignment tape and video signal.
The suitable output waveform of the color-bar singa genrator is shown below.
Instrument and Tools Required
1.Color TV receiver.
2. Oscilloscope having 10 MHz or more bandwidth.
3. Color-bar generator.
4. Frequency counter.
5. VTVM.
6. VOM (20 KY/V).
7. Audio oscillator.
8. Audio attenuator.
Signal Level and Input and Output
Impedance Requirement
1.Video input: Negative syne., 1Vp-p standard composite
video signal, 751.
2.Video output: Same as above.
3.Audio input: Line - 10dBs, 47K1.
4.Audio output: -50dBs, 10K1 or less.
Servo & Logic Alignment
Color Video Audio
AlignmentAlignmentAlignment
Adjustment Sequence
The VCR should be adjusted in the sequence shown below.
4 |
ACEC
DAEWOO
