English, Overview of the components, Installation – AEG MMR 4128 User Manual
Page 30: General operation

English
30
Overview of the components
Front (Fig. 1)
1 LCD Display
2 
Button (Play/pause)
3 MODE button
4 
/
buttons (Scan forwards / backwards)
5 Cover USB /memory cards connection
6 VOL+/VOL- buttons (volume)
7 PRESET button
8 RPT/MEM button (Repeat/store)
9 Telescopic antenna
Rear view (Fig. 2)
10 ON/OFF switch 
11 AUX IN connector
12 DC +5 V connector
13 USB +5 V connector
14 Battery compartment
Accessories (without illustration)
Power supply
Li-Ion battery (BL -5 C)
Installation
• Read the manual thoroughly before operating the de-
vice!
• Choose a suitable location for the device. Suitable loca-
tions are dry, even and antislip surfaces on which you may 
operate the device easily.
•	 Make	sure	there	is	proper	ventilation	for	the	device!
•	 Remove,	if	necessary,	the	protection	sheet	from	the	
display.
Power supply (Adaptor)
•	 Insert	the	grid	plug	into	a	properly	installed	three	prong	
socket. Connect the device with the plug connector by 
inserting its plug into the DC +5 V jack of the device.
• Make sure the grid voltage corresponds to the figures on
the rating plate.
CAUTION:
• Only use the supplied power adaptor for this device.
Do not use for other devices.
• Only use the original AC adapter. This adapter is
optimally attuned to the enclosed battery to charge 
the battery in a gentle process. Any other adapter can 
shorten the battery life or can damage it or the device.
NOTE:
Disconnect from mains power supply during longer periods 
of non-use.
Battery Operation
You can optionally also operate the device with the enclosed 
3.7 V Li-Ion battery.
1. Open the battery compartment (14) on the back.
2. Insert the enclosed battery. Mind the correct polarity 
(indicated on the bottom of the battery case)!
3. Close the battery case.
4. If the device is not used for a longer period of time, 
remove the battery from the device to prevent a “leaking 
out”	of	battery	acid.
CAUTION:
• Batteries must not be disposed of in the garbage.
Please bring used batteries to competent collection 
centers or back to the dealer.
• Only replace the battery with a different battery of the
same type.
WARNING:
Never	expose	batteries	to	high	temperatures	or	direct	sun-
light or throw batteries into fire for 
danger of explosion!
Charging the battery
Before you can operate the device with the battery, you need 
to charge it first.
1. Insert the battery. ( 
see “Battery operation”)
2. Connect the device to a wall socket with the power adap-
tor. The control lamp on the power adapter lights up red 
and the battery is being charged.
When the battery is fully charged, the control lamp on the 
power adapter will change to green. 
CAUTION:
Never leave the device unattended during the charging 
process.
NOTE:
• You can also charge the battery through the USB con-
nector +5 V (13). Connect the device with a USB cable 
to a running PC.
• The duration of the charging process depends on the
state of charge of the battery.
General operation
Switch the device on/off
•	 Switch	the	device	on	by	setting	the	ON	OFF	switch	on	
the back of the device to ON.
• To switch off the device, set the ON OFF switch to OFF.
NOTE:
The device will always be reset to the factory default vol-
ume when it is turned on again.
