3-1-3. Adjusting Connectors
Some of the adjusting points of the video section are concentrated
at VC-240/241 board CN009. Connect the measuring instruments
via the CPC-8 jig (J-6082-388-A). The following table lists the pin
numbers and signal names of CN009.
Pin No.Signal NamePin No.Signal NameCN009
1LACN SIG2EVF BL+
3EVF BL�4EVF VG12
5EVF VCO6GND
1920
7PANEL VG8PD VCO
9H START10XHD/PSIG
11PANEL COM12TMS
13TCK14JIG TDI
15JIG TDO16GND
17SWP18RF IN/LANC JACK IN
Remove the CPC lid
19GND20RF MON
Table 5-3-1.Fig. 5-3-1
3-1-4. Connecting the Equipment
Connect the measuring instruments as shown in Fig. 5-3-2, and
perform the adjustments.
VTR recording mode (Except AEP/UK model)
Pattern generator
VIDEO
Video output(Yellow)Adjustment
(75 1)remote
commanderAUDIO L
Main unit(White)
AUDIO R
(Red)
AUDIO/VIDEO jackLANC jack
Playback modeTV monitor
VIDEO
(Yellow)
Main unit
AUDIO L (White)
Adjustment
remote
commander
AUDIO R (Red)
LANC jackAUDIO/VIDEO jack
Fig. 5-3-2.
3-1-5. Checking the Input Signals
(Except AEP/UK model)
Because the video signal obtained from the pattern generator is used
as the adjustment signal for adjusting the VTR section, the video
output signal must satisfy the given specifications.
Connect the oscilloscope to the video terminal of the AUDIO/
VIDEO jack, and check that the sync signal amplitude of the video
signal is approximately <0.286V> [0.30V], the amplitude of the
video section is approximately <0.714> [0.70V], the amplitude of
the burst signal is approximately <0.286> [0.30V] and flat, and that
the level ratio of the burst signal to the Ored� signal is 0.30 : 0.60.
The video signal used for adjusting the video section is shown in
Fig. 5-3-3.
< > : NTSC model
[ ] : PAL model
5-46 |
ACEC
