Denon AVR-1913 Service Manual page 50

Board to board
PCB VIDEO
(3) Detach PCB HDMI from the chassis, and turn it over.
Please put an insulation sheet that is larger than PCB HDMI under PCB.
b Connect the ground point of PCB to the chassis with a ground lead or the like.
PCB HDMI
PCB VIDEO
Insulation sheet
CHASSIS-HDMI CONNECTOR
CHASSIS-COMPOSIT CONNECTOR
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