1) SERVO-LOGIC CIRCUIT ADJUSTMENT METHOD
• VIDEO HEAD SWITCHING POSITION
1) Play back the test tape.
2) Set the oscilloscope in the CHOP mode connect the CH1 to SW pluse PT01 3 PIN the CH2 to VIDEO OUT with CH1
triggering.
3) Press the “REC” button of Jig Remocon to make that playback phase of vertical sync from the rising edge of SW pulse
is 6.5H ±0.5H .
3-1. ELECTRICAL ADJUSTMENT
11
Adj. Location
Checking Point
Measuring Equipment
Mode
Test Tape
REC Button(Jig Remocon)
PT01 3 PIN
Oscilloscope
Play
DN-2
VIDEO OUT
SWITCHING
SW30Hz
PULSE
VIDEO
OUTPUT
V. SYNC
6.5H±0.5
Summary of Contents for MD1777
Page 3: ...TOTAL CONTENTS 1 SECTION 1 GENERAL 2 SECTION 2 CABINET MAIN FRAME 6 SECTION 3 ELECTRICAL 10 ...
Page 9: ...2 1 EXPLODED VIEW 7 1 MAIN CHASSIS ASS Y T1 9 ...
Page 10: ...8 2 PANEL FRONT ASS Y 5 6 7 8 10 15 ...
Page 11: ...9 2 2 PACKING ASSEMBLY ...
Page 14: ...3 2 CIRCUIT DIAGRAMS 12 1 LOGIC CIRCUIT DIAGRAM DV5T721NY ...
Page 15: ...13 2 POWER CIRCUIT DIAGRAM DV5T711NY ...
Page 16: ...14 3 SERVO SYSCON CIRCUIT DIAGRAM DV5T711NY ...
Page 17: ...15 4 VIDEO AUDIO CIRCUIT DIAGRAM FM PROCESSING ...
Page 18: ...16 5 HI FI CIRCUIT DIAGRAM DV5T711NY ...
Page 19: ...17 6 A V IN OUT CIRCUIT DIAGRAM ...
Page 20: ...3 3 PRINTED CIRCUIT BOARD 18 1 PCB MAIN ...
Page 21: ...19 2 PCB FRONT 3 PCB JACK ...
