Hitachi CP-TW2503 User Manual page 138

Troubleshooting
Phenomena that may be easy to be mistaken for machine defects (continued)
Phenomenon
138
Cases not involving a machine defect
The signal cables are not correctly connected.
The MUTE function is working.
The volume is adjusted to an extremely low level.
The AUDIO SOURCE/SPEAKER setting is not correct.
VOLUME + -
USB TYPE A
USB TYPE B
LAN
Reference
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