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NOTE: Adjust the volume of the external device to an audible level.
Cleaning
CAUTION: Do not immerse the device in water.
• Disconnect the mains plug before cleaning.
• Clean the device with a soft damp cloth without detergents.
Troubleshooting
Problem Cause Solution
The unit cannot be
operated.
The unit is blocked and
“hangs”.
Disconnect the power supply
for 5 seconds. Then switch the
device on again.
No display Display brightness is
turned off
Hold down the SNOOZE /
SLEEP / HIGH / LOW / OFF
button to restore the display.
Technical Data
Model: ..........................................................................................................................MRC 4157
Power supply: ............................................................................................... DC 5 V, 1 A
Power consumption:........................................................................................................... 7.5 W
Battery power reserve: ................................................................................2 x 1.5 V, AAA, R 03
Frequency range: ....................................................................................FM 87.5 ~ 108.0 MHz
........................................................................................ AM 522 ~ 1620 kHz
Net weight: ....................................................................................................... approx. 0.276 kg
External Power Adaptor
Input: ....................................................................................... AC 100 − 240 V, 50 / 60 Hz, 0.18 A
Output: ........................................................................................................................ DC 5 V / 1 A
Polarity: ..............................................................................................................................
Protection class: ..........................................................................................................................
The right to make technical and design modifications in the course of continuous
product development remains reserved.