6
ELECTRICAL ADJUSTMENT
1. SERVO/SYSCON CIRCUIT ADJUSTMENT METHOD
v
VIDEO HEAD SWITCHING POSITION
v
CONNECTION METHOD
v
ADJUSTMENT PROCEDURE
1) Play back the test tape.
2) Set the oscilloscope in the chop mode connect the CH1 to SW pulse(PT501 (r)PIN), the CH2 to
TJ396(video out) with CH1 triggering.
3) Adjust R595 for the positive trigger until 6.5
±
0.5H cycle before the vertical SYNC pulse.
Adjustment Part
Checking Point
Measuring Equipment
Mode
Test Tape
R595
TJ396
PT501 PIN3
OSCILLOSCOPE
Play
DN-1 (Color Bar)
TJ396
CH-1
Oscilloscope
CH-2
PT501
R595
CH1
SW PULSE
(PT501 3PIN)
VIDEO OUT
(TJ396)
Vertical SYNC Signal
1H
6.5H 0.5H
Trigger Position
Summary of Contents for DV-K580DZ-T
Page 29: ...28 1 CONNECTION DIAGRAM CIRCUIT DIAGRAM...
Page 30: ...29 CIRCUIT DIAGRAM 2 POWER CIRCUIT DIAGRAM...
Page 31: ...30 CIRCUIT DIAGRAM 3 SYSCON CIRCUIT DIAGRAM...
Page 32: ...31 CIRCUIT DIAGRAM 4 VIDEO CIRCUIT DIAGRAM...
Page 33: ...32 CIRCUIT DIAGRAM 5 PRE AMP CIRCUIT DIAGRAM...
Page 34: ...33 CIRCUIT DIAGRAM 6 OSD CIRCUIT DIAGRAM...
Page 35: ...34 CIRCUIT DIAGRAM 7 AUDIO CIRCUIT DIAGRAM...
Page 36: ...35 CIRCUIT DIAGRAM 8 LOGIC CIRCUIT DIAGRAM...
Page 37: ...36 CIRCUIT DIAGRAM 9 TERMINAL CIRCUIT DIAGRAM...
Page 38: ...37 COMPONENTS LOCATION GUIDE ON PCB BOTTOM VIEW 1 PCB MAIN...
Page 39: ...38 COMPONENTS LOCATION GUIDE ON PCB BOTTOM VIEW 2 PCB UNION...
Page 40: ...39 DISASSEMBLY 1 PANEL FRONT ASS Y...
Page 41: ...40 DISASSEMBLY 2 SET TOTAL ASS Y...
Page 42: ...41 DISASSEMBLY 3 PACKING ASS Y...