RA 2020 - Alarm clock radio Karcher Audio - Free user manual and instructions

Product Type	Alarm Clock Radio
Brand	Karcher Audio
Model	RA 2020
Dimensions (H x W x D)	10 cm x 15 cm x 8 cm
Weight	250 g
Power Supply	AC adapter (6V DC, 500mA) or 2 AA batteries
Radio Bands	FM (87.5-108 MHz), AM (530-1710 kHz)
Alarm Modes	Radio alarm, buzzer alarm
Snooze Function	Yes, 9-minute snooze
Display Type	LED digital display with dimmer
Clock Settings	12/24 hour format, manual time set
Backup Battery	CR2032 coin cell for time/alarm retention
Speaker	Mono speaker, 2W output
Antenna	Built-in ferrite rod for AM, telescopic for FM
Headphone Jack	3.5 mm stereo output
Material	Plastic casing with rubberized buttons
Cleaning Instructions	Wipe with dry or slightly damp cloth. Do not use liquid cleaners.
Safety Warnings	Do not expose to water or humidity. Unplug during storms.
Spare Parts Availability	Contact Karcher Audio customer service for adapters or batteries.
Repairability	User-replaceable backup battery; other repairs require professional service.

Frequently Asked Questions - RA 2020 Karcher Audio

How do I set the alarm time on the RA 2020?

Press and hold the ALARM button until the alarm time flashes, then use the + and - buttons to adjust. Press ALARM again to confirm.

Can I wake up to the radio instead of the buzzer?

Yes. While setting the alarm, choose the RADIO mode by pressing the MODE button. Make sure the radio is tuned to your desired station.

How do I activate the snooze function?

When the alarm sounds, press the SNOOZE button (or any large button on top). The alarm will stop for 9 minutes and then sound again.

Why is my RA 2020 not showing the correct time?

The clock may need resetting after a power outage. Press and hold the TIME button, then use + and - to set the correct time. Also check the backup battery (CR2032) is installed.

How do I change the radio station?

You can manually tune by pressing the TUNE + or TUNE - buttons, or use the SCAN button to automatically search for stations.

What type of power adapter does the RA 2020 use?

The device uses a 6V DC, 500mA AC adapter with a center-positive plug. It can also run on 2 AA batteries (not included).

Can I use headphones with the RA 2020?

Yes, there is a 3.5mm headphone jack on the back. Connecting headphones will mute the internal speaker.

How do I dim the display?

Press the DIMMER button repeatedly to cycle through brightness levels (high, medium, low, off).

What should I do if the radio reception is poor?

Extend the FM telescopic antenna fully and adjust its angle. For AM, rotate the whole unit to improve reception. Avoid placing near large metal objects.

How do I reset the RA 2020 to factory settings?

Remove all power sources (AC adapter and batteries) and press any button for 10 seconds to discharge. Then reconnect power and set time again.

USER MANUAL RA 2020 Karcher Audio

Kitchen Radio | User Manual

Vorwort

Technical diagram showing three stages of a device assembly: front view, side view with 14 mm dimension annotation, and side view with tool insertion.

Technical diagram showing two mechanical assembly components with mounting holes and dashed alignment lines (no text or symbols)

Diagram showing a device connected to a mechanical housing, illustrating assembly or component alignment (no text or symbols present)

BEDIENELEMENTE

1. Read Instructions - All the safety and operating instructions should be read before the appliance is operated.
2. Retain Instructions - The safety and operating instructions should be retained for future reference.
3. Heed Warnings - All warnings on the appliance and in the operating instructions should be adhered to.
4. Water and Moisture – Do not use the apparatus near water (e.g. bath tub, sink, swimming pool) or in wet places or tropical climates. Do not place objects filled with liquids, such as vases, on top of the apparatus. Do not expose the apparatus to dripping or splashing.
5. Setup – The apparatus should only be placed on a stable, flat surface. Do not let the apparatus fall down or expose it to shock.
6. Wall or Ceiling Mounting - The appliance should be mounted to a wall or ceiling only as recommended by the manufacturer.
7. Ventilation - The appliance should be situated so that its location or position does not interfere with its proper ventilation. For example, the appliance should not be situated on a bed, sofa, rug, or similar surface that may block the ventilation openings; or, placed in a built-in installation, such as a bookcase or cabinet that may impede the flow of air through the ventilation openings.
   Ensure a minimum distance of 5 cm around the apparatus for sufficient ventilation. Ensure that the ventilation is not impeded by covering the ventilation openings with items such as newspapers, table-cloths, curtains, etc.
8. Heat - The appliance should be situated away from heat sources such as radiators, heat registers, stoves, or other appliances (including amplifiers) that produce heat.
9. Power Sources - The appliance should be connected to a power supply only of the type described in the operating instructions or as marked on the appliance.
10. Cables and Plugs – The mains plug shall remain readily operable. All cables should be routed so that they are not likely to be walked on or pinched by items placed upon or against them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit from the appliance.
11. Cleaning - The appliance should be cleaned only as recommended by the manufacturer. Clean by wiping with a dry and clean cloth. Do not use chemical cleaners or detergents. Always pull the mains plug before cleaning the unit.
12. Non-use Periods - The power cord of the appliance should be unplugged from the outlet when left unused for a long period of time.
13. Object and Liquid Entry - Care should be taken so that objects do not fall and liquids are not spilled into the enclosure through openings.
14. Damage Requiring Service - The appliance should be serviced by qualified service personnel when:
    a) The power-supply cord or the plug has been damaged; or
    b) Objects have fallen, or liquid has been spilled into the appliance; or
    c) The appliance has been exposed to rain; or
    d) The appliance does not appear to operate normally or exhibits a marked change in performance; or
    e) The appliance has been dropped, or the enclosure damaged.
15. Servicing - The user should not attempt to service the appliance beyond that described in the operating instructions. All other servicing should be referred to qualified service personnel.
16. Open Fire – Keep the apparatus away from open fires. Do not place naked flame sources, such as lighted candles on the apparatus.
17. Thunderstorms – During a thunderstorm the mains plug should be unplugged.
18. Safety Check – After servicing the technician should conduct a safety check in order to ensure that the apparatus is working properly and safely.

19. Batteries – Always place batteries in the correct polarization into electrical components. Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type. Do not mix old and new batteries. Take attention to the environmental aspects of battery disposal. Batteries shall not be exposed to excessive heat such as sunshine, fire or the like. Remove batteries before disposing of the product.

20. Headphones – Excessive sound pressure from earphones and headphones can cause hearing loss.

EN

CAUTION RISK OF ELECTRO SHOCK DO NOT OPEN

WARNING: To reduce the risk of fire or electric shock, do not expose this appliance to dripping or splashing.

WARNING: To reduce the risk of electric shock, do not remove cover (or back). No user serviceable parts inside. Refer servicing to qualified service personnel.

The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated dangerous voltage within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.

Batteries

Batteries may not be disposed of in regular house hold trash. Every consumer has the obligation to return batteries to special disposal locations.

Disposal of Used Electrical & Electronic Equipment

The meaning of the symbol on the product, its accessory or packaging indicates that this product shall not be treated as household waste. Please, dispose of this equipment at your applicable collection point for the recycling of electrical & electronic equipments waste. By ensuring the correct disposal of this product, you will help prevent potential hazards to the environment and to human health, which could otherwise be caused by unsuitable waste handling of this product. The recycling of materials will help conserve natural resources. For more detailed information about recycling of this product, please contact your local city office, your household waste disposal service or the shop where you purchased the product.

UNIT PLACEMENT INSTRUCTION

Mounted at lower position

36 mm

Mounted at higher position

Technical diagram showing three stages of a device assembly: front view, side view with 14 mm dimension annotation, and side view with tool insertion.

Position to install the bracket onto the cabinet

Technical line drawing of two mechanical components with mounting holes and vertical supports (no text or symbols)

Unit placed on desktop (using bracket as stand)

Diagram showing a device connected to a physical enclosure, both enclosed in circular frames (no text or symbols)

LOCATION OF PARTS & CONTROLS

EN

1. Function switch (ON/OFF/AUTO)
2. Alarm button
3. Clock-set button
4. Hour button
5. Minute button
6. Count-down timer switch (ON/OFF)
7. Clock display
8. Tuning control
9. Volume control (Alarm Buzzer)
10. Aux-INsocket
11. Back-up battery compartment

1 7 9 10 2 3 5 4 6 8 11

POWER SOURCES

Insert 1 piece of 9V (006P) type battery into Back-up battery compartment (12) for clock back-up. Before plugging in the AC power cord, please check the rating of your unit which must match your household main supply, then plug the AC power plug into the mains power supply accordingly.

Note:

- Always remove the battery from the battery compartment when the unit is not going to be used for a long period of time to avoid battery leakage, which will damage the unit.

CLOCK SETTING

1. To set the hour, while holding the Clock-set button (3) down, press the Hour button (4) until the desired hour is displayed, release both buttons.
2. To set the minutes, while holding the Clock-set button (3) down, press the Minute button (5) until the correct time appeared on the Clock Display (7). Release both buttons.

RADIO OPERATION

1. To switch the radio on, slide the Function switch (1) to "ON" position.
2. Adjust the Volume control (9) to the desired volume level.
3. Adjust the Tuning control (8) to tune the radio frequency.
4. To turn the radio off, slide the Function switch (1) to the "OFF" position.

Note:

- In case of weak FM reception, please unwind the external FM wire antenna and tie the end to something above the radio for better reception.

AUX-INOPERATION

1. To use the unit as speaker for external sound source, connecting both devices by using ∅ 3.5 mm jack cable (not included).

2. Slide the Function switch (1) to "ON" position.

3. Adjust the Volume control (9) to the desired volume level.
4. To turn the sound off, slide the Function switch (1) to the "OFF" position. Then, detach the cable with the unit accordingly.

1. Select the desired alarm sound and volume level, please refer to - RADIO OPERATION - section for details.
2. Press & hold the Alarm button (2) and set the desired alarm hour and minute by pressing the Hour button (4) and Minute button (5) respectively.
3. Slide the Function switch (1) to "AUTO" position.
4. Select to wake by radio or buzzer by the Alarm Buzzer (9) to "BUZZER" position.
5. The alarm will be activated when the preset alarm time is due.
6. To cancel the alarm, slide the Function switch (1) to "OFF" position.

COUNT-DOWNTIMER

1. Slide the Count-down timer switch (6) to "ON" position. The count-down duration "00:59" appears on the display.
2. Press the Minute button (5) to decrease the minute setting by 1 minute each.
3. To add 1 hour onto the duration, press Hour button (4) once. The timer can be set from 1 minute 1 hour 59 minute.
4. The buzzer will be activated when the timer is due.
5. To cancel the timer function, slide the Count-down timer switch (6) to "OFF" position.

TECHNICAL SPECIFICATIONS

Radio reception FM (UKW) 87,5 - 108 MHz

Power supply: 230V \~ 50Hz

Backup battery: 9V 6F22 type

Technical specifications and design may change without notice.

Karcher

www.karcher-products.de