Daewoo DV-F24N, Руководство по обслуживанию

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5. COLOR REC CURRENT
• Adjustment Procedure
1. Set the TV/LINE to LINE mode.
2. Supply the color bar signal to video input jack.
3. Set the VCR to the stop mode.
4. Connect the oscilloscope to check point and trigger the scope with CH1.
5. Adjust R399 until Y recording current becomes minimum.
6. Adjust R491 to obtain 80±5 mV.
• Adjustment Inspection Standard: 80±5 mV
10
Mode Adjustment Parts Check Point Test Equipments Test Tape Input Signal
LINE INPUT CH1: TJ313 Signal Gen.
& STOP
*
R491
CH2: TJ399 Oscilloscope
Color Bar
Location of Adjustment Parts Observation Waveform
H-Axis: 10us/div V-Axis: 20mv/div
MAIN PCB
T
U
N
E
R
HEAD-AMP
DECK
1
9
6 3
7
4
5
2
10
8
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