Nv Ram Save (45H); Preset Adjust (47H); Nv Ram Save; Preset Adjust - Sony Trinitron PVM-14M2MDU Interface Manual

Command Description

NV RAM Save (45H)

This command is used to store data into the NV RAM.
The data is taken from the current volatile memory
locations and stored into the NV RAM.
The command has three portions:
1. Specific area of the NV RAM the data should be
stored in.
2. The Elements of data to be saved.
3. The data items to be saved if necessary.
The following sections explain the meaning behind
each of these portions:
1. Specific area of the NV RAM the data should be
stored in.
Be sure to set (1) the user area bit of the first byte
of the data within the command block of the
message.
Bits which are not specified here are undefined bits
and their values are always ignored.
If the user area bit is cleared (0), data will not be
saved in the NV RAM.
This operation will take sometime to complete,
approximately ten seconds. Therefore it is advised
that the remote control device waits this period of
time.
2. The Elements of data to be saved are defined in the
second and third bytes of data.
The appropriate bit is set (1) when the data is being
saved, otherwise the bit is cleared (0).
If the value is zero nothing is saved 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 Adjustable data
2 White balance data
3 Selectable data (Input Config., Menu)
3. In the fourth byte of the data, set (1) the bits which
correspond to the adjustable data items to be saved
in the NV RAM.
10
User area bit
(always 1)
2 3
The values are specified as follows:
1 2 3 4
Bits which are not specified here are undefined bits
and their values are always ignored.
1 V hold
2 Sub control
3 User preset
4 Chroma setup
5 Split phase

Preset Adjust (47H)

This command is used to adjust the Preset data values
which are being displayed on the monitor. The Preset
data consists of Chroma, Phase, Brightness, Contrast,
Aperture and Volume.
The command has two components:
1. The Elements of Preset data being sent
2. The Preset Adjustment Values to be used
Each of these elements is described below.
1. The Elements of Preset data being sent is the first
byte of data contained within the command block.
Several items of Preset 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 zero in the bit position indicates no data to be
changed.
If the value is zero no values are changed and the
message is basically ignored.
The values are specified as follows:
2 3 4 5
1
Bits which are not specified here are undefined bits
and their values are always ignored.
1 Volume value
2 Contrast value
3 Aperture value
4 Brightness value
5 Phase value
6 Chroma value
5
6