JVC KM-H2500E User Manual

• Return Loss: 

≥30dB to 6 MHz 

• Levels: NTSC: 286mV ± 14mV (40 IRE ±2 IRE) 

PAL: 307mV (43 IRE)

• Rise Times (10-90%): NTSC 140ns ±20ns PAL: 

200ns ±20ns

• Duration: NTSC: 4.7us ±0.1 us PAL: 4.7us ±0.2us

The following error messages may appear when starting your switcher.

The following tables list the Supported GVG100 commands and controls.

DDR 0 Not Found
DDR 1 Not Found
DDR 0 & 1 Not Found

There is a problem with the switcher DDR 
memory. The switcher may be used but 
many features will be limited or disabled

Re-start your switcher. If the problem 
persists, contact JVC Technical Support 
for assistance.

Upgrade PMC?

Your switcher requires a Panel Module 
Controller (PMC) upgrade as part of a 
software upgrade. The switcher may be 
used without the PMC upgrade but may 
respond in an unpredictable manner

Allow the PMC upgrade to proceed. 
Contact JVC Technical Support for 
assistance if you are unsure about 
upgrading your switcher.

Read MLE Program Bus

MLE

2

41

—

Read MLE Preset Bus

MLE

2

42

—

Read Keyer Bus

Keyer

2

43/44

—

Write MLE Program Bus

MLE

3

C1

<xpt>

An invalid xpt request 
returns a protocol error

Write MLE Preset Bus

MLE

3

C2

<xpt>

An invalid xpt request 
returns a protocol error

Write Keyer Bus

Keyer

3

C3/C4

<xpt>

An invalid xpt request 
returns a protocol error

Read Analog

MLE/Keyer

3

45

<control>

Write Analog

MLE/Keyer

5

C5

<control>

<lsb>

<msb>

Read Light On/off

MLE/Keyer

3

46/47

—

Write Light On/off

MLE/Keyer

3

C6/C7

<lamp>

Read Wipe Pattern

MLE

2

48

—

Write Wipe Pattern

MLE

3

C8

<wipe>

Valid wipes are 0-9, as 
per the Wipe Pattern 
button numbers. An 
invalid wipe number 
returns a protocol error.

Read Transition Mode

MLE

2

4A

—