Sub Control Data (4Ch); Hold Data (4Dh); Reset Data (4Eh); Sub Control Data - Sony Trinitron PVM-14M2MDU Interface Manual

2. The Preset Adjustment values to be used
Each value requires two bytes of data, the first byte
of the pairing is the always ignored byte. The
second byte is a signed value, this allows for +/–
adjustments.
The pairs of bytes start at the Least Significant Bit
end of the elements of data being sent i.e. if the
data to be adjusted is Phase and Contrast then the
first pair of Preset value bytes is Phase and the last
pair is Contrast.
If there are not enough or too many data bytes of
Preset values then no values are changed and the
message is effectively ignored.

Sub Control Data (4CH)

This command is used to specify the Sub Control data
of the monitor.
The command has two components:
1. The Elements of Sub Control data being sent
2. The Data values to be used
Each of these elements is described below
1. The Elements of Sub Control data being sent is the
first byte of data contained within the command
block.
Several items of Sub Control data can be specified
in one message stream. Only those elements that
need to be changed are indicated in this byte.
The values of data being sent are indicated by a 1
being set in the appropriate bit position. Otherwise
a 0 in the bit position indicates no data to be
changed.
If the value is 0 no values are changed and the
message is basically ignored.
The values are specified as follows:
1
Bits which are not specified here are undefined bits
and their values are always ignored.
1 Contrast value
2 Brightness value
3 Phase value
4 Chroma value
2. The Data values to be used
Each value is one byte of data, up to a maximum
value of 100 (7 bit data, MSB always 0).
2 3 4
The data bytes start at the Least Significant Bit end
of the elements of data being sent i.e. if the data to
be adjusted is Phase and Contrast then the first
byte of Data value bytes is Phase and the last byte
is Contrast.
If there are not enough or too many data bytes of
data values then no values are changed and the
message is effectively ignored.
V Hold Data (4DH)
This command is used to specify the V Hold data.
The values are specified as follows:
V Hold data value

Reset Data (4EH)

This command is used to restore data in the monitor to
the factory defaults.
The command has two portions:
1. The Elements of data to be restored
2. The data items to be restored
The following sections explain the meaning behind
each of these portions:
1. The Elements of data to be restored.
The values are specified as follows:
1
Bits which are not specified here are undefined bits
and their values are always ignored.

1 Split Phase data

2 V Hold data

3 Sub Control data

4 User Preset data
5 White Balance (user) data
The appropriate bit is set (1) when the data is to be
restored, otherwise the bit is cleared (0).
If the value is zero nothing is restored and the
message is basically ignored.
This operation will take approximately ten seconds
to execute therefore it is advised that the remote
control device waits this period of time.
2 3 4 5
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