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7-1-4.
Adjusting Remote Control Unit
The camera section is adjusted by changing the constant using the
coefficient
of the digital signal processing
calculation,
or
modifying the output voltage of EVR IC (VC-112 board IC702).
These processes are carried out by the camera micro processor
(VC-112 board IC709). This micro processor reads the data
written in the non-volatile memory (VC-112 board IC712), and
transmits it to the digital signal processing circuit and EVR.
The adjusting remote control unit is used for rewriting the
adjustment data written in the non-volatile memory necessary for
performing the adjustments.
The adjusting remote control unit uses the remote control signal
line (LANC) to correspond mutually with the camera micro
processor. The page, address and the up/down command of the
data can be transmitted from the remote control unit to the
camera micro processor. On the other hand, the page, address,
and data can also be transmitted the other way round.
.
Using the adjusting remote control unit
1)
Connect the adjusting remote control unit to the remote
terminal (LJ-9 board J971).
2)
Adjust the HOLD switch of the adjusting remote control
unit to HOLD (SERVICE position).
If it has been properly connected, the LCD on the adjusting
remote control unit will show the display in Fig. 7-6.
KY
SY
Page
Data
Address
Fig. 7-6.
3)
Operate the adjusting remote control unit as follows.
e Changing the page
The page will increase when the EDIT SEARCH+ button
is pressed. It will decrease when the EDIT SEARCH-
button is pressed. There are altogether 16 pages, from 0
to F.
Hexadecimal
Decimal notation
conversion value 01234567
8 9 1011 12131415
Table 7-1.
e Changing the address
:
The address will increase when the FF ( >> ) button is
pressed, and decrease when the REW ( << ) button is
pressed. There are altogether 256 addresses, from 00 to
FF.
e Changing the data (Data setting)
The data will increase when the PLAY ( > ) button is
pressed, and decrease when the STOP ( Mf ) button is
pressed.
There are altogether 256 data, from 00 to FF.
e Writing the adjustment data
It is necessary to press the PAUSE button to write the
adjustment data (F page, D page) in the non-volatile
memory.
(The new adjustment data will not be recorded in the
non-volatile memory if this operation is not performed.)
4)
Select page: 6, address: 00, and adjust the data to 01. This
releases the write protect of page F, and the camera section
€F page) can be adjusted.
5)
After completing all adjustments, tum off the main power
(6.3V) once. This.can release the adjustment mode (other
than page F).
2.
Precautions
upon
using
the
adjusting
remote
control unit
The correct adjustment data may be erased at times, due to
operation errors of the adjusting remote control unit. To prevent
this from occurring, it is recommended that all adjustment data
be recorded in the memory before beginning adjustments, and the
new adjustment data be recorded in the memory after each
adjustment.
— 188 —
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