QFX RETRO-39 - Device Overview and Components; Key Component Identification; Battery Power Operation

Warning:
Disconnect the recorder by unplugging the plug at the wall socket when not in use.
Operation on Batteries
The recorder operates from 4 x 1.5V DC batteries. If the machine is to be used
mostly from batteries supply. Manganese alkaline batteries will usually provide
longer battery life.
Slide off the lid of the battery compartment and insert the four batteries over the
ribbon, observing polarity marks inside the compartment.
Attached DC JACK
Speaker (SP Recording)
USB Port
FWD Key (for USB)
REW Key (for USB)
Play/Pause Key (for USB)
Cassette Deck
Record Key
Play Key
Rewind Key
Fast-Forward Key
Stop/Eject Key
Pause Key
Sideway Handle
Volume Control
Line Out Jack
Line In Jack
USB/Line in/Tape/Off
Battery Compartment
Built-in Microphone
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1
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7
20