Table of Contents
Advertisement
4-3-5. CF PHASE ADJUSTMENT (1) (525)
Board
V_OUT (F6)
Specification
Test Point
TP4 (A-2), SG CF OUT
Adjustment
CF ADJ N, VR7 (B-3)
Point
Input Signal
REF IN = BB (NTSC)
Mode
EE, INT SG
Tape
M.EQ
Oscilloscope
1.
Place the unit in the 525 mode.
2.
Scope : CH1 SG CF
CH2 TP4
TRIG. SG CF falling edge.
3.
Rotate the VR7 fully CCW.
4.
Rotate the VR7 CW.slowly.
5.
Set the VR7 so that the waveform phases are
same as shown in figure
SG CF
F I E L D 1
TP4
NG
The CF waveform is different by SG type.
4-3-6. CF PHASE ADJUSTMENT (2)(525)
Board
V_OUT (F6)
Specification
Data Center ± 5nS
Test Point
TP1 (B-1), TP2 (B-1)
Adjustment
CF ADJ N, VR7 (B-3)
Point
Input Signal
REF IN = BB (NTSC)
Mode
EE, INT SG
Tape
M.EQ
Oscilloscope
1.
Place the unit in the 525 mode.
2.
Adjust VR7 so that the rising edge of the TP2 is at
center of the data period as shown in figure.
3.
After adjustment, confirm that CF phase (refer to
the item CF PHASE ADJUSTMENT(1) (525) )
Trigger
TP2 (5Vpp)
TP1 (5Vpp)
TP2 (5Vpp)
TP1 (data)
Expand
± 5 n s
Advertisement
Chapters
Table of Contents
