DIRECTV C51 Manual

The DIRECTV C51 is a high-definition set-top box designed for satellite television reception, featuring advanced audio/video capabilities, built-in DVR functionality, Dolby Digital audio support, HDMI output, component video, composite video, optical audio output, USB ports for external storage, and network connectivity. Below are key sections for setup, operation, features, and troubleshooting.

Features at a Glance

Key components: HD set-top box with DVR capabilities, Remote Control, Satellite input, HDMI output, Component video, Composite video, Optical audio, USB ports, Ethernet port.

Feature	Description
Satellite input	For DIRECTV satellite dish connection
HDMI output	For high-definition video and audio to TV
Component video	For HD video connection to compatible TVs
Composite video	For standard definition video output
Optical audio	For digital audio to home theater systems
USB ports	For external storage and media playback
Ethernet port	For network connectivity and on-demand content
POWER	Turns receiver on/off
RESET	Reboots the system
IR sensor	For remote control reception

Installation

Unpack and inspect contents. Place in well-ventilated area.

1. Connect satellite dish: Run coaxial cable from dish to satellite input on receiver.
2. Connect to TV: Use HDMI cable for best quality, or component/composite cables.
3. Connect audio: Use optical cable for surround sound to audio system.
4. Connect to network: Use Ethernet cable for internet connectivity.
5. Plug into AC power.

WARNING! Ensure proper ventilation; do not block air vents. Use surge protector.

First-Time Setup

Power on receiver; follow on-screen setup wizard.

1. Satellite signal: System will automatically search for satellite signal.
2. Program guide download: Allow time for guide data to download.
3. Network setup: Configure internet connection for on-demand content.
4. Audio/video settings: Set resolution (720p, 1080i, 1080p) and audio format.
5. Channel favorites: Set up favorite channels list.

CAUTION! Do not interrupt initial setup process; may take 15-30 minutes.

Specifications

• Video Output: HDMI, Component, Composite
• Audio Output: Optical, HDMI, Analog stereo
• Resolution: Up to 1080p HD
• Audio: Dolby Digital, MPEG
• Storage: Internal hard drive for DVR recording
• Connectivity: USB 2.0, Ethernet 10/100
• Satellite Support: DIRECTV standard and HD programming
• Power Source: 120V AC, 60Hz
• Operating Temp: 32°F to 104°F (0°C to 40°C)

Controls and Settings

Access menu system via remote control. Front Panel: POWER, CHANNEL, VOLUME, SELECT.

Remote: POWER, GUIDE, MENU, INFO, DVR, LIST, EXIT, directional pad, SELECT, colored buttons.

Settings: Display (resolution, aspect ratio), Audio (digital/analog, dynamic range), Parental (ratings lock), System (network, diagnostics), DVR (recordings, series manager).

Connecting Devices

Satellite: Coaxial input. TV: HDMI/Component/Composite. Audio: Optical to receiver. Network: Ethernet to router.

1. Turn off all devices before connecting cables.
2. Use high-quality HDMI cables for best performance.
3. Select correct input on TV (HDMI 1, HDMI 2, etc.).
4. Verify satellite signal strength in system settings.

Tip: Label cables for easy identification during setup.

DVR Operation

Record, pause, and rewind live TV. Schedule recordings and manage stored content.

1. Record program: Press RECORD during live TV or from program guide.
2. Series recording: Press RECORD twice to record entire series.
3. Pause live TV: Press PAUSE; resume with PLAY.
4. Fast forward/rewind: Use directional buttons during playback.
5. Manage recordings: Press DVR button to view and delete recordings.
6. External storage: Connect USB drive for additional storage capacity.

WARNING! Do not disconnect power during recording; may cause data loss.

Parental Controls

Set viewing restrictions by rating, channel, or content type.

1. Access Parental Controls from main menu.
2. Set 4-digit lock code (default: 0000).
3. Block programs by TV/Movie rating.
4. Lock specific channels or content types.
5. Set viewing time limits if desired.

Maintenance

Keep unit clean and well-ventilated. Regular software updates automatically.

CAUTION! Unplug before cleaning. Use dry cloth only; no liquids. Ensure proper airflow around unit.

Regulatory Information

FCC Part 15: Class B digital device compliant. Manufactured under license from DIRECTV. Copyright protection technologies used. For support, visit www.directv.com/help or contact 1-800-531-5000. Software updates provided automatically via satellite.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No picture	Input selection/cables	Check TV input setting; verify HDMI/component cable connection
No satellite signal	Dish alignment/weather	Check dish alignment; wait for severe weather to pass; check cables
Remote not working	Batteries/obstructions	Replace batteries; ensure clear path to IR sensor; check mode setting
Recording failures	Storage space/tuner conflict	Delete old recordings; check for tuner conflicts in schedule
No sound	Audio settings/cables	Check audio output settings; verify optical/HDMI cable connections

Reset: Unplug for 30 seconds, then reconnect. Use red reset button if issues persist.

Service: 1-800-531-5000; www.directv.com/help