Table of Contents
Advertisement
Checking method:
Remove
the
adjustment
remote
controller
and
check
the
following points. If the required conditions are not obtained,
repeat the adjustments again.
1)
2)
3)
4)
5)
6)
Adjust the output voltage of the regulated power supply so
that the digital voltmeter reading becomes 6.30 + 0.01 Vde.
(VTR in camera recording mode)
Confirm that the {J mark is not lit on the EVF (viewfinder)
screen (TALLY lamp is lit).
Lower the output voltage of the regulated power supply so
that the digital voltmeter reading becomes 5.66 + 0.01 Vde.
Confirm that the {J mark and the TALLY famp are flashing
in approx. 1 sec intervals on the EVF screen. ( 4) mark
should not be blinking.)
Lower the output voltage of the regulated power supply so
that the digital voltmeter reading becomes 5.50 + 0.01 Vdc.
Confirm that the flashing interval of the ¢) mark and the
TALLY lamp on the EVF screen becomes shorter, and that
the VTR stops and the power is tumed off.
10-3-2.
Clock Accuracy Adjustment (FU-101 Board)
Note: Use a 10: 1 probe for connecting the frequency counter.
Adjusting method:
1)
Adjust to 512,000 + 0.001 Hz with CTSO1.
512.000 + 0.001 Hz
approx.
48Vp-p
Approx. 1.9 usec
Fig. 10-6,
— 295 —
10-4. SERVO SYSTEM ADJUSTMENT
10-4:1.
Switching Position Adjustment (SS-136 Board)
Mode
Playback
F
Alignment tape : Operation check
Signal
(WRS-INP)
.
CHI: CNS08 pin @ (D SWP)
=|
Measurement Point | Cro, C508 pin @ (PB RF)
Measuring Instrument | Oscilloscope
Adjustment Page
D
Adjustment Address
ou
Specified Value
t=0+5 psec
Adjusting method:
1)
Set the HOLD switch of the adjustment remote controller to
the HOLD side. (ADJUST MODE is set.)
2)
Select page 1 and address 00 with the adjustment remote
controller and set the data to 01. (Protector is released.)
Page
Data
Address
Soe
—_—S
_,
—,
=,
Pe
ee
ee ae
hwwiu
3) Press four times the EDIT SEARCH (-) button of the
adjustment remote controller. (Adjustment page D is set.)
4) Change the data at address 05 (for coarse adjustment) and
minimize "t".
5)
Press the PAUSE button of the adjustment remote controller
to store the data in the memory.
6)
Change the data at address 04 (for fine adjustment) and
adjust to t=0 + 5 psec,
7)
Press the PAUSE button of the adjustment remote controller
8) Tum off the POWER switch.
1
|
I
CH2
|
UC
v
\
Enlarge ment
CHi
t=0 + 5 usec
cH2
t
bese
Fig. 10-7.
Advertisement
Table of Contents
