2. PLAYBACK Y-SINGAL OUTPUT LEVEL
1) Playback the test tape (Color Bar Signal).
2) Connect the oscilloscope to TP396 and trigger the scope will a composite SYNC signal at TP313.
1)
Adjust the scope so that it can display a waveform of approx. 2H.
3) Adjust RV396 to optain 2.0VP
¡
0.2 Vp-p between the SYNC TIP and 100% white level.
3. SYNC TIP FREQUENCY
1) Set the unit to stop mode without video signal. (Jack of video line input is shorted with ground).
2) Conncet the frequency counter to TP391.
3) Adjust RV391 until the SYNC TIP frequency becomes 3.80 MHz
¡
0.1 MHz.
7
Adj. Location
Checking Point
Measuring Equipment
Mode
Test Tape
RV396
TP396
Oscilloscope
PB
DP-1
Adj. Location
Checking Point
Measuring Equipment
Mode
Test Tape
RV391
TP391
Oscilloscope
REC.
ƒ¡
2.0
¡
0.2Vp-p
Horizontal 10
¥
s/div
Vertical 0.5V/div.
Summary of Contents for DVR-1181D
Page 13: ...3 1 CONNECTION DIAGRAM 11 SECTION 3 CIRCUIT DIAGRAM...
Page 14: ...3 2 POWER CIRCUIT 12...
Page 15: ...3 3 SERVO SYSCON CIRCUIT 13...
Page 16: ...3 4 VIDEO CIRCUIT 14...
Page 17: ...3 5 PRE AMP CIRCUIT 15...
Page 18: ...3 6 AUDIO CIRCUIT 16...
Page 19: ...3 7 LOGIC SW CITRCUIT DVR 1181 SERIES 17...
Page 20: ...3 8 LOGIC SW CITRCUIT DVR 1383 SERIES 18...