Kramer VM-4H2 1:4 HDMI Distribution Amplifier - Manual (Page 7)

Kramer Electronics Ltd.
VM-4H2 – Defining the VM-4H2 4K HDMI 2.0 1:4 DA 5
To select the operation mode, set the DIP-switches as follows:
Programming
mode HDCP Input
(MAC mode) Force RGB Lock Default EDID
DIP 1 2 3 4
OFF (up) Normal mode HDCP enabled Force RGB EDID not locked
ON (down) Enable programming HDCP disabled Normal mode EDID locked
The VM-4H2
toggles between “Normal” and “Force RGB” modes.
In “Force RGB” mode, the read EDID is rewritten to identify only RGB support.
•
To force RGB, set DIP 3 OFF (up)
•
After setting Force RGB mode you must re-acquire the EDID to update the Force RGB
change
Powering on the device identifies the mode as follows:
• In “Normal mode” (meaning no forcing RGB), the LEDs flash once.
• In “Force RGB mode”, the LEDS flash four times.
Force RGB modifies the EDID saved on the input to not support YUV format.
In case of a pink display, use the Force RGB mode.
LED Indications
The input and output LEDs turn on only when there is an input signal and an active output
device connected.
Flashing LEDs indicate the following states:
LED Indication State
Input LED (per
input) Flashes four times then stays on HDCP lost on input while running
Output LED Flashes twice quickly, repeatedly HDCP signal on input.
Output device does not support HDCP
Flashes slowly, repeatedly Input signal detected.
Output device has invalid EDID
Flashes twice quickly then twice slowly,
repeatedly HDCP signal on input.
Output device does not support HDCP and
has invalid EDID