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Acer AT4220A Service Manual Page 69

At4220a service guide.
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HDMI No Sound
HDMI Cable
HDMI Cable
plug in ?
plug in ?
Read EDID DATA
Read EDID DATA
EDID Data
EDID Data
Normal ?
Normal ?
Sound output?
Sound output?
Chapter 3
L
no
Check HDMI cable or
Check HDMI cable or
Replacement HDMI CABLE
Replacement HDMI CABLE
no
Write EDID data
Write EDID data
no
Replacement Main/B
Replacement Main/B
END
END
62

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