Setting of the gamma user data, Nrepeater control command, Nto transfer the gamma user data – Sharp PN-E802 User Manual

Page 32: Nsaving the gamma user data, Nactivating the gamma user data, Nchecking the gamma user data

background image



Controlling the Monitor with a PC (RS-232C)


Repeater control

This system has a function to allow setting of multiple

monitors connected in a daisy chain using a single command.

This function is called repeater control. You can use Repeater

control function without assigning ID numbers.


Set 1

Set 2

Set 3

Set 4

* If monitors are connected as shown above, you can

execute a command like “Set all monitors’ input settings to



Repeater control command

Repeater control is achieved by setting the FOURTH

CHARACTER of the parameter to “+”.


VOLM030 +

Sets volume of all monitors to 30.

In repeater control, responses are returned by all the

connected monitors.

If you want to determine that a value has been returned by a

specific set, assign ID numbers to each monitor in advance.

When some monitors do not return their responses, the

probable cause is that the monitors could not receive the

command or command processing is not complete. Do not

send a new command.

Example: (When 4 monitors are connected, and

assigned ID numbers: 1 through 4)

VOLM030 +
OK 001
OK 002
OK 003
OK 004

← If 4 monitors are connected in

a chain, reliable operation can

be ensured by sending a new

command only after a reply

has been returned by 4th (last)


Repeater control can also be used for reading settings.


VOLM ? ? ? +
10 001

Volume settings for all

monitors are returned.

20 002
30 003
30 004


• If repeater control is used during ID designation (IDSL,

IDLK), the ID designation is canceled.

Setting of the GAMMA user data


To transfer the GAMMA user data

Use the user data transfer commands (UGRW, UGGW and

UGBW). For each of the R, G and B colors, divide the total

512 pieces of user data into 16 blocks, and transfer 32 pieces

of data with each command.

C1 C2 C3 C4 P1 P2 P3 P4

… S1 S2

Command field Block number (01 to 16) Data field Checksum field

Example: To transfer the data of block 1 (0 to 31 levels)

of red (R) data

UGRW01000000010002 … 0031C0

Command Block number 32 pieces of data


One piece of data consists

of 4 digits.

* If data is less than 4 digits, add a “0” (zero) to make it 4


* The checksum field is the character string (ASCII) data of

lower-order one byte which indicates the sum of the block

number and 32 pieces of data in hexadecimal (0 to F).


Saving the GAMMA user data

Use the user data save command (UGSV) to save the

transferred user data in the monitor.

If the data is not saved, it will be cleared when:

• The main power switch is off

• STANDBY MODE is LOW POWER and the monitor enters

standby mode


Activating the GAMMA user data

To activate the transferred user data, select USER for GAMMA

of the PICTURE menu, or send the corresponding RS-232C



Checking the GAMMA user data

Use the user data read commands (UGRR, UGGR and

UGBR) to return 512 pieces of user data for each of the R,

G and B colors. Divide the data into 16 blocks and return 32

pieces of data with each command. The value to be returned

is not the value stored in the monitor, but the value in the

temporary memory for display. (These values are the same

when the user data save command (UGSV) above has been



• The user data is not initialized by RESET of the PICTURE

menu. To initialize the user data, use ALL RESET of the


The GAMMA user data initialize command (UGRS) allows

the initialization of the user data only.

This manual is related to the following products: