4 Command control
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PJ04030102B
4.8.1
Operation
Use the command as shown in the following examples.
Purpose: To switch the gamma coefficient of the gamma table “Custom1” to 2.1.
(Current setting: Gamma bank “Custom1”, Gamma coefficient “2.2”)
(1) Transmit the data from the external controller to the projector as follows.
1: External controller →
0x21
0x89
0x01
0x47
0x50
0x33
0x0A
'!'(Operation)
PJ
Individual : 1
'G'
'P'
2.1
End
(2) If the projector receives the data (1) above and the command receipt is normal, an ACK is returned from the projector as follows.
2: ←Projector
0x06
0x89
0x01
0x47
0x50
0x0A
ACK
PJ
Individual : 1
'G'
'P'
End
(3) The projector switches the gamma coefficient of the gamma table “Custom1”.
4.8.2
Reference
Use the command as shown in the following examples.
Purpose: To confirm the current gamma coefficient of the gamma table “Custom2” of
the projector. (Current setting: Gamma bank “Custom2”, Gamma coefficient “ 1.8”)
(1) Transmit the data from the external controller to the projector as follows.
1: External controller →
0x3F
0x89
0x01
0x47
0x50
0x0A
'?'(Reference)
PJ
Individual : 1
'G'
'P'
End
(2) If the projector receives the data (1) above and the command receipt is normal, an ACK is returned from the projector as
follows.
2: ← Projector
0x06
0x89
0x01
0x47
0x50
0x0A
ACK
PJ
Individual : 1
'G'
'P'
End
(3) The projector transmits a report of the gamma coefficient to the external Controller.
3: ← Projector
0x40
0x89
0x01
0x47
0x50
0x30
0x0A
'@'(Response)
PJ
Individual : 1
'G'
'P'
1.8
End
By the above exchange, it can be confirmed that the gamma coefficient of gamma table “Custom2” is 1.8.