Sony GV-A500E, Service Manual

Page: 61 / 127

5-2
1-1-2. Adjusting Remote Commander
The adjusting remote commander is used for changing the
calculation coefficient in signal processing, EVR data, etc. The
adjusting remote commander performs bidirectional communication
with the unit using the remote commander signal line (LANC). The
resultant data of this bidirectional communication is written in the
non-volatile memory.
1. Using the adjusting remote commander
1) Connect the adjusting remote commander to the LANC
terminal.
2) Adjust the HOLD switch of the adjusting remote commander
to “HOLD” (SERVICE position).
If it has been properly connected, the LCD on the adjusting
remote commander will display as shown in Fig. 5-1-7.
Fig. 5-1-2.
3) Operate the adjusting remote commander as follows.
• Changing the page
The page increases when the EDIT button is
pressed, and decreases when the EDIT SEARCH– button is
pressed. There are altogether 16 pages, from 0 to F.
Page Data Address
Hexadecimal
notation
LCD Display
Decimal notation
conversion value
0 1 2 3 4 5 6 7 8 9 A B C D E F
0 1 2 3 4 5 6 7 8 9 A b c d E F
0 1 2 3 4 5 6 7 8 9 10 11 12 1314 15
• Changing the address
The address increases when the FF (
)
) button is pressed,
and decreases when the REW (
0
) button is pressed. There
are altogether 256 addresses, from 00 to FF.
• Changing the data (Data setting)
The data increases when the PLAY (
(
) button is pressed,
and decreases when the STOP (
p
) button is pressed.
There are altogether 256 data, from 00 to FF.
• Writing the adjustment data
The PAUSE button must be pressed to write the adjustment
data (D, E, F page) in the nonvolatile memory.
(The new adjustment data will not be recorded in the
nonvolatile memory if this step is not performed.)
4) Select page: 0, address: 01, and set the data to 01, and enables
Page D and E, F to be adjusted.
5) After completing all adjustments, set page: 0, address: 01, data:
00 and turn off the main power supply (7.2V) once.
2. Precautions upon using the adjusting remote
commander
Mishandling of the adjusting remote commander may erase the
correct adjustment data at times. To prevent this, it is recommended
that all adjustment data be noted down before beginning adjustments
and new adjustment data after each adjustment.