JVC GY-DV500U - Shooting the Screen Image on a Computer Monitor

3-14
No. Item
Measuring
instruments &
Input signals
Mode
Measuring point (*)
Adjustment parts (-)
Adjustment level (+)
Adjustment procedure
1
SETUP PULSE
adjustment
PB
SETUP: ON
(MENU)
*
TP3[VIDEO/SYSCON]
- VR2[VIDEO/SYSCON]
+ 9.0 ± 0.1 µs
- VR3[VIDEO/SYSCON]
+ 1.5 ± 0.1 µs
(1) Play the color bar section of alignment tape
MC-1 / MC-2.
(2) Adjust the adjustment point so that the initial
duration of the SETUP pulse (see diagram on
the left) is as specified.
(3) Adjust the adjustment point so that the nega-
tive-going duration of the SETUP pulse is as
specified.
3.6.3 Video Circuitry Adjustments
9.0 µsec
1.5 µsec
2
DELETE
PULSE
adjustment
(NTSC only)
• Oscilloscope
(V-rate, 10:1)
• MC-1
(alignment tape)
color bar section
PB
SETUP: ON
(MENU)
* TP2[VIDEO/SYSCON]
- VR4[VIDEO/SYSCON]
+ 1.23 ms
(1) Play the color bar section of alignment tape
MC-1.
(2) Adjust the adjustment point so that the pulse
duration at the measuring point is as specified.
1.23 msec
3
Y LEVEL
adjustment
• Oscilloscope
(H-rate)
Color bar
EE
Color bar
EE
* Y signal output
(75Ω terminated)
-
VR6[VIDEO/SYSCON]
+ 1.0 Vp-p
* Y signal output
(75Ω terminated)
-
Adjustment software
+ 1.0 Vp-p
(1) Set the camera to the color bar mode.
(2) With the VCR set to EE, adjust the adjustment
point so that the Y signal level in Y/C OUT is as
specified.
(3) Adjust the Y signal level to the specified level
using the adjustment software (see section
3.7.9-1).
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
4
C LEVEL
adjustment
• Oscilloscope
(H-rate)
Color bar
EE
Color bar
EE
* C signal output(75Ω
terminated)
-
VR5[VIDEO/SYSCON]
burst level
* C signal output
(75Ω terminated)
-
Adjustment software
burst level
(1) Set the camera to the color bar mode.
(2) With the VCR set to EE, adjust the adjustment
point so that the C signal level in Y/C OUT is as
specified.
(3) Adjust the C signal level to the specified level
using the adjustment software (see section
3.7.9-2).
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
VR5
VR6
TP3
TP2
VR4
VR3
VR2
Y/C OUT MONITOR OUT
LINE OUT
CH-1 CH-2
Y
C
VIDEO/SYSCON board Y/C output
Y SIGNAL
C SIGNAL
• Oscilloscope
(V-rate, 10:1)
• MC-1:NTSC
MC-2:PAL
(alignment tape)
color bar section
+ NTSC 0.286 Vp-p
PAL 0.3 Vp-p
+ NTSC 0.286 Vp-p
PAL 0.3 Vp-p
3-13