Phenomena That May Be Easy To Be Mistaken For Machine Defects - Hitachi ED-AW100N User Manual

Phenomena that may be easy to be mistaken for machine defects

Phenomenon Cases not involving a machine defect
The electrical power cord is not plugged in.
The main power source has been interrupted during
operation such as by a power outage (blackout), etc.
Either there is no lamp and/or lamp cover, or either
The signal cables are not correctly connected.
Signal source does not correctly work.
The input changeover settings are mismatched.
The BLANK function for pictures and the MUTE
function for sounds are working.
The signal cables are not correctly connected.
The MUTE function is working.
The volume is adjusted to an extremely low level.
MUTE VOLUME + -
Troubleshooting
Reference
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