DENON AVR-X2800H No Video Pass Through
| CONF | DIAGNOSIS | PART MATCH | ACTION |
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86%
CONF
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HDMI Main Digital PCB Assembly
The main digital board contains the HDMI switching ICs and the HDCP authentication engine. Physical failure occurs when the TMDS/FRL (Fixed Rate Link) differential pair pathways are compromised by thermal fatigue or voltage spikes, preventing the receiver from stripping and re-clocking the video signal for pass-through. Replacing the entire PCB ensures all HDMI 2.1 logic and HDCP 2.3 encryption keys are restored.
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CHECK PRICE |
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9%
CONF
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Certified Ultra High Speed HDMI 2.1 Cable
Modern 4K/120Hz and 8K signals require 48Gbps bandwidth; older 'High Speed' cables cause a handshake timeout or EDID mismatch, leading the AVR to drop the video signal to protect the audio stream. A certified cable ensures the physical layer can maintain the high-frequency differential signaling required for the AVR to authenticate the signal pass-through.
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5%
CONF
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Replacement Remote Control
A functional remote is required to access the 'HDMI Signal Format' sub-menu, which is distinct from the standard Setup menu. In many cases, the 'No Pass Through' is a logic block caused by the receiver being set to 'Standard' format while receiving an 'Enhanced' 10-bit or 12-bit signal, which the internal logic gate interprets as an incompatible or corrupt data stream.
SKU: RC-1253
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DIY Repair Guide
Watch exactly how to replace the HDMI Main Digital PCB Assembly.