Bi-level Pulse
•Return Loss: ≥30dB to 6 MHz
•Levels: NTSC: 286mV ± 14mV (40 IRE ±2 IRE)
PAL: 307mV (43 IRE)
•Rise Times
•Duration: NTSC: 4.7us ±0.1 us PAL: 4.7us ±0.2us
Error Messages
The following error messages may appear when starting your switcher.
Table 5 Switcher Error Messages
Error Message | Description | Solution | ||
DDR 0 | Not Found | There is a problem with the switcher DDR | ||
DDR 1 | Not Found | memory. The switcher may be used but | persists, contact JVC Technical Support | |
DDR 0 | & 1 Not Found | many features will be limited or disabled | for assistance. | |
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| Your switcher requires a Panel Module | Allow the PMC upgrade to proceed. | |
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| Controller (PMC) upgrade as part of a | ||
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| Contact JVC Technical Support for | ||
Upgrade PMC? | software upgrade. The switcher may be | |||
assistance if you are unsure about | ||||
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| used without the PMC upgrade but may | ||
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| upgrading your switcher. | ||
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| respond in an unpredictable manner | ||
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GVG100 Protocol Supported Commands
The following tables list the Supported GVG100 commands and controls.
Table 6 GVG100 Supported Commands
Name | MLE/Keyer | Length | Byte Code |
| Data/Notes |
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Read MLE Program Bus | MLE | 2 | 41 |
| — |
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Read MLE Preset Bus | MLE | 2 | 42 |
| — |
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Read Keyer Bus | Keyer | 2 | 43/44 |
| — |
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Write MLE Program Bus | MLE | 3 | C1 | <xpt> | An invalid xpt request | |
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| returns a protocol error | ||
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Write MLE Preset Bus | MLE | 3 | C2 | <xpt> | An invalid xpt request | |
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| returns a protocol error | ||
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Write Keyer Bus | Keyer | 3 | C3/C4 | <xpt> | An invalid xpt request | |
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| returns a protocol error | ||
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Read Analog | MLE/Keyer | 3 | 45 | <control> |
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Write Analog | MLE/Keyer | 5 | C5 | <control> | <lsb> | <msb> |
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Read Light On/off | MLE/Keyer | 3 | 46/47 |
| — |
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Write Light On/off | MLE/Keyer | 3 | C6/C7 | <lamp> |
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Read Wipe Pattern | MLE | 2 | 48 | — |
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| MLE | 3 | C8 | <wipe> | Valid wipes are | |
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| per the Wipe Pattern | |
Write Wipe Pattern |
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| button numbers. An | |
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| invalid wipe number | |
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| returns a protocol error. | |
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Read Transition Mode | MLE | 2 | 4A |
| — |
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44