Introduction
The Kramer VP-8K is a high-performance distribution amplifier designed for computer graphics video signals, supporting resolutions up to and exceeding UXGA. This device efficiently takes a single input signal, buffers and isolates it, and then distributes it to eight identical outputs. It is engineered for reliable signal distribution in various professional audio-visual environments.
Key features include:
- High Bandwidth: 370MHz (–3dB) for clear signal transmission.
- HDTV Compatible: Supports high-definition television signals.
- Selectable Sync Input Impedance: Options for 75ohm (video) and 510ohm (Graphics/TTL).
- Kr–isp Advanced Sync Processing: A proprietary technology that ensures compatibility with a wide range of computers by restoring the sync signal waveform, even if the original sync level is low. This feature can be enabled or disabled as needed.
- Compact Design: Desktop size, with the option for side-by-side rack mounting in a 1U space using the RK–1 adapter (sold separately).
Product Overview
The VP-8K unit features a robust design with clearly labeled ports for easy setup and operation. Below are images illustrating the front and rear panels of the device.
Figure 1: Front and Rear Panels of the Kramer VP-8K Distribution Amplifier. The top view shows the front panel with the "POWER" indicator and "1:8 VGA/UXGA Distributor" label. The bottom view displays the rear panel with one VGA/UXGA input, eight VGA/UXGA outputs, a sync impedance switch, and the 5V DC power input.
Setup and Connections
Follow these steps to set up your Kramer VP-8K distribution amplifier:
- Power Off Devices: Ensure all source devices (computers, media players) and display devices (monitors, projectors) are powered off before making any connections.
- Connect Input Source: Connect your computer graphics video source (e.g., PC, laptop) to the INPUT 15-pin HD (F) connector on the rear panel of the VP-8K using a high-quality VGA/UXGA cable.
- Connect Output Displays: Connect up to eight display devices (e.g., monitors, projectors) to the OUTPUT 1 through OUTPUT 8 15-pin HD (F) connectors on the rear panel using high-quality VGA/UXGA cables.
- Set Sync Impedance: Locate the SYNC switch on the rear panel.
- For video signals, set the switch to 75Ω.
- For computer graphics (TTL) signals, set the switch to Hi-Z (TTL).
- Connect Power: Connect the supplied 5V DC power adapter to the 5V DC input jack on the rear panel of the VP-8K. Plug the power adapter into a suitable electrical outlet. The power indicator on the front panel should illuminate.
- Power On Devices: Power on your display devices first, then power on your source device.
Note: For optimal performance, use Kramer high-resolution cables.
Operating Instructions
The Kramer VP-8K is designed for straightforward operation, primarily functioning as a plug-and-play distribution amplifier once connections are established.
- Signal Distribution: Once powered on and connected, the VP-8K automatically distributes the input computer graphics video signal to all eight connected output displays simultaneously.
- Kr–isp Advanced Sync Processing: This feature is typically enabled by default to ensure maximum compatibility. If you experience sync issues with a particular source, you may try disabling this feature (if an external switch or setting is available, though for VP-8K it's internal and automatic). The primary function is to restore weak sync signals.
- Resolution Support: The unit supports resolutions up to and exceeding UXGA. Ensure your source and display devices are configured to compatible resolutions.
No user intervention is typically required beyond initial setup and power cycling.
Maintenance
To ensure the longevity and optimal performance of your Kramer VP-8K, follow these maintenance guidelines:
- Cleaning: Disconnect power before cleaning. Use a soft, dry cloth to wipe the exterior of the unit. Do not use liquid or aerosol cleaners.
- Ventilation: Ensure the unit has adequate ventilation. Do not block any ventilation openings.
- Environment: Operate the unit in a dry environment, away from direct sunlight, excessive heat, or moisture.
- Cable Management: Periodically check all cable connections to ensure they are secure and free from damage.
Troubleshooting
If you encounter issues with your Kramer VP-8K, refer to the following common troubleshooting steps:
| Problem | Possible Cause | Solution |
|---|---|---|
| No video output on displays. |
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| Poor video quality (e.g., blurry, distorted, color issues). |
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| Only some outputs show video. |
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Specifications
| Feature | Detail |
|---|---|
| Input | 1 x VGA/UXGA on a 15-pin HD (F) connector |
| Output | 8 x VGA/UXGA on 15-pin HD (F) connectors |
| Bandwidth | 370MHz (–3dB) |
| HDTV Compatible | Yes |
| Sync Input Impedance | Selectable: 75Ω (video), 510Ω (Graphics/TTL) |
| Sync Processing | Kr–isp Advanced Sync Processing (can be enabled/disabled) |
| Product Dimensions (L x W x H) | 6.4 x 8.45 x 1.72 inches (16.26 x 21.46 x 4.37 cm) |
| Item Weight | 1.54 pounds (0.7 kg) |
| Model Number | VP-8K |
| Manufacturer | Kramer |
| Mounting Type | Surface Mount (Rack mountable with optional RK–1 adapter) |
Warranty and Support
Kramer products are designed for reliability and performance. For information regarding warranty coverage, technical support, or service, please refer to the official Kramer website or contact their customer support directly. Keep your purchase receipt for warranty claims.
For the most up-to-date information, visit the Kramer Store on Amazon or the official Kramer Electronics website.
