JVC Gd 42x1 Instructions

32
 Position  Adjustment
Adjusts the picture position on the monitor.
● Vertical adjustment is effective when “Aspect” is set to “14:9 Zoom”, “16:9 
Zoom”, “Panoramic”, “16:9 Zoom Subtitle”, or “Panoramic Zoom”.
● Horizontal adjustment is effective only when “Aspect” is set to “Panoramic 
Zoom”.
● When a PC signal is input, adjust the position on “PC Position Adjustment” in 
”PC Setting”.
● The positioning is reset as the power is turned off.
● The positioning is reset as the signal format changes.
● The...

33
Changing the settings : Setup
 Input  Label
Adds a source name specifying a device after the source name (“Input-1” - 
“Input-4”).
■ (No label) / VCR / DVD / Blu-ray Disc / PVR / D-VHS / STB / SAT / 
AMP / GAME / CAM / DISC / PC
 4:3 Aspect Setting
Selects the aspect setting which is applied when “Aspect” (➔ page 30) 
is set to “Auto”. The picture is displayed in the selected aspect when the 
aspect is 4:3 or when the monitor cannot detect the aspect of a picture.
■ Regular  : Displays the picture in...

34
 PC  Setting
Adjusts the settings for PC signals.
● The items below are unadjustable when no PC signal is input: “H Size”, 
“V Size”, “Dot Clock”, “Clock Phase”, “PC Position Adjustment”, and “Auto 
Position Adjustment”.
● “Auto Position Adjustment” is unavailable for INPUT-4.
● “Dot Clock” and “Clock Phase” are unavailable for INPUT-1, INPUT-2 and 
INPUT-3.
◆ Sampling Mode
Sets the display size for an analog input signal.
■ Std  : For VGA60 and XGA60 signals
■ Wide  : For WVGA60, WXGA (1280), WXGA...

35
Changing the settings : Setup
◆ Dot Clock
Adjust this when the picture is not aligned vertically.
● The adjustment is kept after turning off the power.
■ –20 – +20
◆ Clock Phase
Adjust this when letters on the screen look blurred or swaying.
● The adjustment is kept after turning off the power.
■ 0 – 31
◆ PC Position Adjustment
Adjusts the picture position on the monitor.
● The adjustment is kept after turning off the power.
◆ Auto Position Adjustment
Adjusts the picture position automatically.
◆...

36
 HDMI
 Control with HDMI
Makes an HDMI CEC-compatible external component controllable through 
this monitor.
■ On  : Enables HDMI CEC control.
■ Off  : Deactivates HDMI CEC control.
 One Touch Play
Starting playback on an HDMI CEC-compatible external component 
automatically turns on the monitor and change its source to the 
component.
● The setting is fixed to “Off” and unadjustable when “Control with HDMI” is set 
to “Off”.
● Dedicated HDMI components cooperate with the monitor regardless of the...

37
Changing the settings : HDMI
 AMP  Control
Makes an HDMI CEC-compatible amplifier controllable through the 
monitor.
● The setting is fixed to “Off” and unadjustable when “Control with HDMI” is set 
to “Off”.
■ On / Off
 Input-1  Audio
Selects the audio signal type for INPUT-1.
■ Auto  : Detects the type automatically.
■ Digital  : For HDMI equipment.
■ Analogue  : For DVI equipment.
 Reset
Restores the settings of “HDMI” to the initial....

38
External Control
You can control GD-42X1 from external control equipment (a personal 
computer or a dedicated controller) via the RS-232C terminal on the rear of 
the monitor.
Communication specifications
Cable
A crossover cable with a RS-232C connector
Communication specifications
● Baud Rate:  19200 bps
● Data Bits:  8 bits
● Parity:  Odd  parity
● Stop Bits:  1 bit
● Flow Control:  No control
● Communication Code:  ASCII Code
Terminal specifications
This is a male 
terminal.
Pin No. Signal
1—
2RXD...

39
External Control
Command outline
To control the monitor from external control equipment, send operation 
commands to the monitor.
Example of communication procedures
1 Operation command to select “Input-3”.
2 Acknowledgment from the monitor.
3 The input is changed to “Input-3”.
Command structure
a: Header ! : Operation command from the external control 
device.
? : Enquiry command from the external control 
device.
@ : Response from the monitor to an enquiry 
command.
Ack (0x06): Positive acknowledge...

40
Command list
● “
*” is the monitor ID. Normally, set it to “0x80”.
● Enter the appropriate data to “xx” or “x”.
No. Operation commands
1
†! 0x82 * P W x Lf
2
†! 0x82 * I P x Lf
3
†! 0x82 * V L x x Lf
4
†! 0x82 * A M x Lf
5
†! 0x82 * V S x Lf
6
†! 0x82 * A S x Lf
7 ! 0x82 * R CxxxxLf
8 ! 0x82 * S U I C x x Lf
9 ! 0x82 * S U R M x Lf
10
††! 0x82 * S U F K x Lf
 †  For these commands, you can make enquiry commands by entering “?” instead 
of “!” and omitting the data bytes. When you send an enquiry...

41
External Control
Functions Data
Turns on/off the monitor.0: Off
1: On
+: Switches the power status.
Selects the input.1: Input-1
2: Input-2
3: Input-3
4: Input-4
Adjusts the volume.00 – 50: Sets the volume directly.
+: Turns the volume up.
–: Turns the volume down.
Turns muting on/off.0: Mute is released.
1: The sound is muted.
+: Switches the mute status.
Selects an item of “Memory Setting” (➔ page 
15).0: Memory1 / 1: Memory2 / 2: Memory3 / 
3: Memory4 / 4: Memory5 / 5: Memory6 / 
+, –: Changes the...