4. LUMINANCE AND COLOR RECORD CURRENT
1) Input Color bar signal in 'video line in'.
2) Make every adjustment in REC mode.
3) Connect CH. 1 of oscilloscope to TP399 and TP GND and CH. 2 TP313 (C.SYNC), and then trigger the scope with an
external signal.
4) Adjust RV491 Until the color record current level (RED REFERENCE) becomes 100
¡
5mVp-p.
5) Connect CH. 1 of oscilloscope to TP399 and TP GND and CH. 2 TP313 (C.SYNC), and then trigger the scope with an
external signal.
6) Adjust RV399 Until the Luminance level becomes 300
¡
10mVp-p.
8
Adj. Location
Checking Point
Measuring Equipment
Mode
Test Tape
RV339
TP399
Oscilloscope
REC.
Blank Tape
TV491
Color Record Current
a:100mVp-p
¡
5mVp-p
Y Record Current
b:300mVp-p
¡
10mVp-p
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Summary of Contents for DVR-1989D
Page 14: ...3 2 POWER CIRCUIT 12 All manuals and user guides at all guides com...
Page 15: ...3 3 SERVO SYSCON CIRCUIT 13 All manuals and user guides at all guides com...
Page 16: ...3 4 VIDEO CIRCUIT 14 All manuals and user guides at all guides com a l l g u i d e s c o m...
Page 17: ...3 5 PRE AMP CIRCUIT 15 All manuals and user guides at all guides com...
Page 18: ...3 6 AUDIO CIRCUIT 16 All manuals and user guides at all guides com...
Page 19: ...3 7 LOGIC SW CITRCUIT DVR 1181 SERIES 17 All manuals and user guides at all guides com...
Page 20: ...3 8 LOGIC SW CITRCUIT DVR 1383 SERIES 18 All manuals and user guides at all guides com...
