Roberts CRD-37 Gemini 37 Clock Radio

DAB / FM RDS / CD Clock radio with MP3 / WMA playback facility

CRD-37 Clock Radio Features

The Roberts CRD-37 Clock radio provides the following features in an attractive compact unit.

Radio

The CRD-37 can receive DAB and FM (with RDS) wavebands.

CD

The CRD-37 plays audio CDs (can also play CDR, CD-RW discs).

CD-MP3/WMA

The CRD-37 plays MP3 and WMA files which have been recorded to CDR or CD-RW discs.

CD Bookmark

The CRD-37 has a CD Bookmark feature which allows CD playback to resume from the track and time position reached when the unit was previously put into standby mode.

Clock

Automatic clock setting from DAB or FM RDS broadcasts.

Headphone output

A standard 3.5mm headphone socket is provided for private listening.

Controls

Front View

Diagram showing the front of the clock radio with numbered buttons.

  1. 1. On/Off button: Powers the device on or off.
  2. 2. Dimmer button: Adjusts backlight illumination.
  3. 3. Alarm / Autoscan button: Sets alarms or performs automatic station scans.
  4. 4. Sleep button: Sets the sleep timer.
  5. 5. Prog / Random button: Controls programming and random playback for CDs.
  6. 6. Display button: Cycles through display modes.
  7. 7. Intro / Repeat button: Controls CD intro scan and repeat modes.
  8. 8. Function button: Selects the input source (DAB, FM, CD).
  9. 9. Menu button: Accesses the menu system.
  10. 10. Memory / Album Down button: Navigates memory presets or albums downwards.
  11. 11. Volume control: Adjusts the audio volume.
  12. 12. Memory / Album Up button: Navigates memory presets or albums upwards.
  13. 13. LCD display: Shows information, time, station names, etc.
  14. 14. Stop button: Stops playback.
  15. 15. Play / Pause / Select button: Starts, pauses, or selects options.
  16. 16. Snooze button: Silences the alarm temporarily.
  17. 17. Tuning / Skip Up button: Tunes stations or skips tracks/albums upwards.
  18. 18. Tuning / Skip Down button: Tunes stations or skips tracks/albums downwards.

Rear View

Diagram showing the rear of the clock radio with numbered ports.

  1. 19. Wire DAB/FM aerial: For receiving radio signals.
  2. 20. DC in socket: For connecting the power adapter.
  3. 21. Headphone socket: 3.5mm socket for private listening.

Using Your Clock Radio for the First Time

  1. Place your clock radio on a flat surface.
  2. Fully extend the wire aerial located on the rear of your clock radio for optimum reception.
  3. Insert the power adapter plug into the DC socket on the rear of your clock radio.
  4. Plug the adapter into a standard 13amp mains socket outlet.

IMPORTANT: The mains adapter connects the clock radio to the power supply. Ensure the mains socket remains accessible during normal use. To disconnect, remove the adapter from the socket.

  1. When first switched on, the display will show "Setting Clock" and a station search will begin automatically.
  2. Once stations are found, clock information will appear. Press the Display button to toggle between time only or time and date.
  3. If no stations are found, "Clock not set" will be displayed. Relocate the radio for better reception and perform an autoscan (see page 9).

Display examples: "Setting Clock.", "12:38", "Clock not set."

Operating Your Clock Radio - DAB

  1. Fully extend the wire aerial.
  2. If the radio is in standby, press the On/Off button to switch it on.
  3. Press and release the Function button to select DAB. The display will show "DAB" then "Now tuning".
  4. A scan of UK DAB channels may occur (or automatically on first setup). If previously used, the last station is selected. New stations are added to the list.
  5. The first found station will play, showing its name and information.
  6. If the station list is empty, "Station not available" will be displayed.
  7. If no signals are found, relocate the radio for better reception and repeat the scan using the AutoScan facility (page 9).

Diagrams show the On/Off and Function buttons being pressed. Display examples: "DAB", "Now tuning...", "BBC 7 Just a Minute...", "Station not available".

Selecting a Station - DAB

  1. The top display line shows the current station name.
  2. Press the Tuning Up or Down buttons to scroll through available stations on the lower line. Stop when you find your desired station.
  3. Press and release the Select button to choose the station. The display may show "Now tuning".
  4. Adjust the Volume to your preference.

Note: If "Station not available" persists, relocate the radio for better reception.

Secondary Services - DAB

  1. Some stations have secondary services, indicated by ">>" next to the station name. The secondary service appears after the primary service when pressing Tuning Up.
  2. Press and release the Select button to choose the secondary station.

Diagrams show Tuning buttons, Select button, and Volume control. Display examples: "Classic", "Classic BBC 7", "BBC 7 Now tuning...", "BBC Radio 5 >> BBC 5 Live", "BBC Radio 5 >> BBC SprtX".

Display Modes - DAB

Your radio has seven display modes. Press the Display button to cycle through them:

Diagram shows the Display button. Display examples: "BBC 7 Just a Minute...", "BBC 7 Culture", "BBC 7 BBC National", "BBC 7 19:17 08-06-2006", "BBC 7 11C 220.35 MHz", "BBC 7 128kbps Stereo", "BBC 7 Signal error 0".

Finding New Stations - DAB

New stations may become available. To find them:

  1. Press and release the Alarm/Auto Scan button. The display shows "Scanning". The radio scans UK DAB frequencies, and a station counter increases as new stations are found and added to the list.
  2. For a full scan of DAB Band III frequencies, press and hold the Alarm/Auto Scan button for over 2 seconds, then release. The display shows "Scanning", and the station counter updates.

Diagrams show the Alarm/Auto Scan button. Display examples: "Scanning... 24", "BBC 7 Now tuning...".

Manual Tuning - DAB

Tune directly to DAB Band III channels (range 11B to 12D).

  1. Press and release the Menu button until "Station order" appears.
  2. Press Tuning Up or Down buttons until "Manual tune" appears, then press Select.
  3. Press Tuning Up or Down buttons to select the desired DAB channel.
  4. Press Select. An indicator graph shows signal strength needed for good reception. Bars change as you adjust the aerial or radio position.
  5. Press Select to return to normal tuning.

Signal Strength Display - DAB

  1. Press Select. The lower display line shows signal strength. Position the radio and aerial for best reception using this display. The most bars indicate the strongest signal.
  2. A clear unfilled rectangle shows the minimum signal level for satisfactory reception. Press Select to return to the previous display mode.

Diagrams show Menu, Tuning, Select buttons. Display examples: "• or SELECT •Station order", "• or SELECT •Manual tune", "11C 220.35 MHz", "BBC 7" with signal bars.

Dynamic Range Control (DRC) Settings - DAB Only

DRC helps make quieter sounds audible in noisy environments. It's available only for DAB.

  1. Press On/Off to switch on the radio.
  2. Press and release Menu until "Station order" appears.
  3. Press Tuning Up or Down buttons until "DRC value" appears.
  4. Press Select to enter adjustment mode. The top display line shows the current DRC setting.
  5. Press Tuning Up or Down buttons to select the DRC setting (default is 0):
    • DRC 0: DRC is switched off.
    • DRC 1/2: DRC level is set to 1/2 that sent by broadcaster.
    • DRC 1: DRC is set as sent by broadcaster.
  6. Press Select to confirm the setting. The display returns to radio mode.

Note: DRC only works if the DAB broadcast supports it.

Diagrams show On/Off, Menu, Tuning, Select buttons. Display examples: "• or SELECT •Station order", "• or SELECT •DRC value", "DRC0 •DRC0", "DRC0 •DRC 1½", "DRC0 •DRC 1".

Operating Your Radio - Search Tuning FM

  1. Fully extend the wire aerial and press On/Off to switch on the radio.
  2. Press and release the Function button until the FM band is selected.
  3. Press Tuning Up and then Alarm/Auto scan. The radio scans upwards from the current frequency and stops at a station of sufficient strength.
  4. The display shows the frequency. If RDS is available, the station name appears after a few seconds. "St" and "RDS" indicate stereo and RDS reception.
  5. To find other stations, press and hold Alarm/Autoscan.
  6. To scan downwards (high to low frequency), press Tuning Down then Alarm/Auto scan.
  7. Tuning wraps around the waveband.
  8. Adjust the Volume.
  9. Press On/Off to switch off.

Diagrams show On/Off, Function, Tuning, Alarm/AutoScan, Volume buttons. Display examples: "FM", "101.1 MHz FM".

Manual Tuning - FM

  1. Press On/Off to switch on.
  2. Press Function to select FM.
  3. Fully extend the wire aerial.
  4. Press Tuning Up and Down buttons repeatedly to tune. Frequency changes in 50kHz steps. Holding a button advances tuning faster.
  5. Tuning wraps around the waveband.
  6. Set the Volume.
  7. Press On/Off to switch off.

Diagrams show On/Off, Function, Tuning, Volume buttons. Display examples: "FM", "101.1MHz FM".

Display Modes - FM

On FM, the bottom display line can show:

Press the Display button to cycle through modes.

Diagram shows the Display button. Display examples: "Classic FM St.FM The latest news", "Classic FM FM Classical Music", "Classic FM St.FM 12:02 16-06-2005", "Classic FM St. FM 101.1 MHz".

Presetting Stations

There are 20 memory presets (10 for DAB, 10 for FM).

  1. Press On/Off to switch on.
  2. Tune to the desired station.
  3. Press Prog/Random. "Preset" will flash with "01".
  4. Use Memory Up or Down buttons to select the desired preset number.
  5. Press Prog/Random again. The display shows "Preset 1 saving" then "Preset 1 saved". The station is stored. Repeat for other presets.
  6. Stored presets can be overwritten.

Diagrams show On/Off, Prog/Random, Memory/Album buttons. Display examples: "BBC R2 Preset 01-", "BBC R2 Preset 01 saved".

Recalling a Preset Station

  1. Press On/Off to switch on.
  2. Select the waveband (DAB/FM) using the Function button.
  3. Press Memory Up or Down buttons to select the desired preset number.
  4. The radio tunes to the stored station.

Diagrams show On/Off, Function, Memory/Album buttons. Display examples: "DAB", "BBC 7 Just a Minute...".

Compact Discs

Use only Digital Audio CDs with the [Digital Audio Disc symbol].

CD-R/CD-RW Discs

The CRD-37 can play CDDA format audio CD-R/CD-RW discs that have been finalised* after recording.

Playback may fail on some CD-R/CD-RW discs due to poor recording quality.

*Finalising enables a CD-R/CD-RW disc to playback on audio players such as your CRD-37.

WARNING

CLASS 1 LASER PRODUCT: The laser construction is inherently safe, adhering to maximum permissible radiation values.

Caution: Using equipment other than specified, or tampering with the unit, can result in dangerous radiation exposure.

MP3 / WMA CD Mode

The CRD-37 plays CD-R and CD-RW discs containing MP3 or WMA files.

In MP3/WMA mode, "album" corresponds to a PC folder, and "file" to an audio track. The radio reads files with a maximum of 255 files per folder. A CD may not contain more than 512 files or albums total. MP3/WMA files must have an audio sample rate of 44.1kHz. Both MP3 and WMA files can be on the same media.

Burning CD-R/RWs with audio files can cause playback issues due to faulty software, hardware, or the CD itself. Contact your CD burner or software manufacturer for support. Ensure copyright laws are observed when creating audio CDs.

Inserting a CD

  1. To open the CD compartment, lift the CD door.
  2. Place the CD on the spindle until it clicks, then gently close the compartment.

Playing a CD

  1. Press On/Off to switch on.
  2. Press Function to select CD as the input source. The player scans the CD contents, displaying "READING".

Audio CD: Total number of tracks and total playing time are displayed.

MP3 / WMA CD: Total number of files and folders are displayed.

  1. Press Play/Pause/Select to start playback. The display shows the track/file number and play symbol [▶].

Audio CD: Shows current track number and elapsed playing time.

MP3/WMACD: Shows current file number for 3 seconds, then file name, ID3 tag, and elapsed playing time.

  1. Adjust the Volume.

Diagrams show CD compartment, On/Off, Function, Select, Volume buttons. Display examples: "CD", "READING", "TRACK 01 •00:07", "FILE 001 •00:06".

CD Playback Controls

  1. To pause playback, press Play/Pause/Select. The pause symbol [⏸] appears. Audio CD shows track number and time; MP3/WMA CD shows file name/ID3 tag and time.
  2. To resume playback, press Play/Pause/Select again.
  3. To stop playback, press the Stop button once.

CD Bookmark

The CD Bookmark feature allows playback to resume from the exact point where it was stopped, even after standby or function change. If mains power is lost, the bookmark is cancelled, and playback restarts from the beginning.

  1. When the CD is playing, press Stop once. The display shows the current track/file number and "Resume". You can then put the radio into standby or select another function.
  2. To cancel the Bookmark function, press Stop again (in CD mode) or eject the CD.
  3. To take out the CD, lift the CD door. It should only be opened when the CD player is in stop mode.

Diagrams show Select and Stop buttons. Display examples: "TRACK 01 "00:07", "FILE 001 "00:06".

Selecting a Track

  1. Audio CD: While playing, press Skip Up or Down to change tracks. You can also skip to a track when stopped. Press Play/Pause/Select to play the selected track.
  2. MP3 / WMA CD: While playing, press Memory/Album Up or Down to change albums/folders, then press Skip Up or Down to change tracks. You can also skip albums/tracks when stopped. Press Play/Pause/Select to play the selected track.

Diagrams show Tuning, Select, and Memory/Album buttons.

CD Modes

Search Function

  1. While the CD is playing, press and hold Skip Up or Down. Release when the desired part of the track is reached.

CD Repeat Mode

  1. Press the Intro/Repeat button to cycle through options:
    • Audio CD: Repeat 1 [?], Repeat ALL [?], Normal Play [▶].
    • MP3 / WMA CD: Repeat 1 [?], Repeat Album [?], Repeat ALL [?], Normal Play [▶].
  2. The display shows the selected repeat mode.

CD Intro Mode

  1. When stopped, press Intro/Repeat once to play the first 10 seconds of each track. "Intro" appears on the display.
  2. To cancel Intro mode, press Intro/Repeat.

Diagrams show Tuning and Intro/Repeat buttons. Display examples: "TRACK 11 •00:07", "TRACK 01 •00:07", "FILE 001 •00:06", "TRACK 01 •00:07 INTRO".

CD Random Play

  1. While playing, press Prog/Random to play tracks in random order. "RAND" appears.
  2. Press Prog/Random again to return to normal play. "RAND" disappears.

Creating a Play List (Program Play - Audio CD Only)

Program up to 20 tracks in any order.

  1. While stopped, press Prog/Random. The display shows "P-01".
  2. Audio CD: Select the first track using Skip Up or Down buttons. "PROG" flashes. Store by pressing Prog/Random.
  3. Repeat steps for desired tracks.
  4. Press Play/Pause/Select to start programmed playback.

Note: Programme play is only available on original Audio CDs and CDDA audio on CD-R/RW discs. MP3/WMA playback cannot be programmed.

Diagrams show Prog/Random, Tuning, Select buttons. Display examples: "TRACK 01 •00:07 RAND", "TRACK 01 P-01-PROG-".

Checking and Editing a Programme

While the CD is stopped, you can check and edit the program.

  1. Press Prog/Random repeatedly to view the programmed playlist.
  2. To edit, navigate to the desired track and follow the playlist creation procedure (page 23).

Erasing a Programme

  1. In program mode, press the Stop button to erase the program. Programs are also erased by putting the radio into standby or radio mode.

Diagrams show Prog/Random and Select buttons. Display example: "TRACK 01 P-01-PROG-".

Alarm Mode

Your clock radio has four alarms that can wake you by radio (FM or DAB), CD, or beep. Each alarm can be set for:

Alarms can only be set in standby mode. Alarm settings are retained for up to 24 hours during power failure.

Note: If no buttons are pressed for 10 seconds, the clock radio exits alarm setup. Press the Menu button to exit the alarm menu at any time.

  1. Press and hold the Alarm button for 3 seconds. "Alarm" appears with "1" flashing.
  2. Press Skip Up or Down buttons to select between Alarm 1 to 4.
  3. Press the Alarm button to enter alarm setup.
  4. The hours digits flash. Press Skip Up or Down to select the hour, then press Alarm to confirm.
  5. The minute digits flash. Press Skip Up or Down to select the minute.

Diagrams show Alarm/AutoScan and Tuning buttons. Display examples: "Alarm: 1", "Alarm: 1 07:00", "Alarm: 1 07:30".

Alarm Settings

  1. Press the Alarm button to confirm the setting and enter the alarm day option menu. Select between once, daily, Mon-Fri, Mon-Sat, and Sat-Sun.
Display Setting
Once (Once) - Will sound at one time only
Mon-Sun (Daily) - Will sound every day
Mon-Fri (1-5) - Will sound every weekday
Mon-Sat (1-6) - Will sound from Monday to Saturday
Sat-Sun (6-7) - Will sound only on weekends
  1. Press Skip Up or Down buttons to select the desired Alarm day option.
  2. Press the Alarm button to confirm the alarm day setting and enter the alarm mode selection menu.
  3. Press Skip Up or Down buttons to select the desired alarm mode (OFF, BUZZER, DAB, CD, FM). Press Alarm to confirm. Setting to "OFF" disables the alarm.
  4. "Snooze 5 minutes" will be shown. Press Skip Up or Down to select snooze timer (5, 10, 15, 20 minutes). Press Alarm to confirm.

Diagrams show Alarm/AutoScan and Tuning buttons. Display examples: "Alarm: 1 ON ONCE", "Alarm: 1 Buzzer".

Alarm Activation and Management

When the clock radio display is set to show time and date, an alarm symbol [?] appears if an alarm is set. Press the Display button to toggle between large time display and time/date display.

Note: If waking by radio, the last used station will play at the alarm time. The alarm volume starts low and increases. The alarm sounds for 90 minutes unless cancelled.

Ensure a CD is inserted if CD is the alarm mode. Otherwise, the buzzer alarm will be used.

View the Alarm Time

  1. Repeatedly press the Alarm button to view time settings for Alarms 1 to 4.

To Cancel the Alarm

  1. While an alarm is sounding, press On/Off to cancel it for 24 hours.
  2. To permanently cancel, enter the alarm setup menu for that alarm and set the mode to "OFF" (see step 9 above).

Diagrams show Display, Alarm/AutoScan, On/Off buttons. Display examples: "12:38:08 08-06-2005 ?", "Alarm: 1 07:30", "Alarm: 1 Off".

Sleep Function

The clock radio can turn off after a preset time. The sleep timer is adjustable from 0 to 90 minutes in 10-minute increments.

  1. Press the Sleep button to enter sleep setup. "Sleep 90" will be displayed.
  2. Repeatedly press the Sleep button to adjust the timer. The selected time is set. If the radio is in standby, it will switch on for the selected time; if already on, it will switch off after the time elapses.
  3. During countdown, press Sleep to view remaining time or change the setting.
  4. The radio switches off after the preset sleep time.
  5. To cancel the sleep function before time elapses, press On/Off or Snooze. To cancel the sleep timer and leave the radio on, repeatedly press Sleep until the timer is 0 minutes.

Diagrams show Sleep, On/Off, Snooze buttons. Display example: "Sleep 90".

Snooze

  1. When the alarm sounds, pressing the Snooze button silences it for the specified duration.
  2. Snooze duration (5, 10, 15, 20 minutes) is adjustable in Alarm settings (pages 25-27).

Dimmer

  1. Press the Dimmer button to change backlight illumination level (high, low, off).

Diagrams show Snooze and Dimmer buttons.

Clock Display

In Standby, the clock radio has two display modes: time only, or time and date combined.

  1. If the radio is on, press On/Off to switch it to standby mode.
  2. Press the Display button to toggle between the two modes.

Diagrams show On/Off and Display buttons. Display examples: "12:38:08 08-06-2005 ?", "12:38".

Software Version

The software version display is for reference only.

  1. Ensure the radio is in DAB mode. Press the Menu button to enter setup.
  2. Press Skip Up or Down buttons until "SW Version" and the version number appear.

System Reset

If the radio operates incorrectly or the display is incomplete, perform a system reset.

  1. While in DAB or FM mode, press and hold the Menu button until "Press SELECT to confirm reset" appears.
  2. Press and release the Select button to confirm.

A full reset will erase the station list and all preset stations. In case of malfunction due to electrostatic discharge or electrical fast transient, a simple reset (disconnecting and reconnecting power after 10 seconds) may be sufficient.

Diagrams show Menu and Select buttons. Display examples: "*U2.2.1.11 •Sw Version", "Press SELECT to confirm reset...".

Headphone Socket

  1. A 3.5mm Headphone Socket on the rear allows private listening with headphones. Inserting a plug mutes the internal loudspeakers.
  2. Adjust the volume as needed. Be aware that headphone sensitivity varies; set volume low before connecting.

IMPORTANT: Excessive sound pressure from earphones and headphones can cause hearing loss.

Diagram shows headphones plugged into the rear socket.

General Information and Safety

Important Notes

General Recommendations

Diagrams show warning symbols for water/steam/sand and excessive heat.

Specifications

Category Details
Power Requirements
Mains
AC 230 volts, 50Hz only
Frequency Coverage
FM
DAB
87.5-108MHz
174.928 - 239.200MHz
Circuit Features
Loudspeakers
Output power
Headphone socket
Aerial System
FM
DAB
2 x 78mm
1W
3.5mm dia
Wire aerial
Wire aerial

The Company reserves the right to amend the specification without notice.

Notes

Use this space for personal notes regarding the clock radio's operation or settings.

Guarantee

This instrument is guaranteed for twelve months from the date of delivery against faulty workmanship or component breakdown. Any faulty component or part will be repaired or replaced free of charge.

The guarantee does not cover:

  1. Damage resulting from incorrect use.
  2. Consequential damage.
  3. Receivers with removed or defaced serial numbers.

Procedure:

Any claim should be made through the dealer from whom the instrument was purchased. If necessary, the dealer will return the instrument to the Company's service department. If returning to the dealer is not possible, please contact Roberts Radio Technical Services.

These statements do not affect the statutory rights of a consumer.

Contact Information

ROBERTS RADIO TECHNICAL SERVICES
97-99 Worton Road
Isleworth Middlesex
TW7 6EG

Technical Helpline: 020 8758 0338 (Mon-Fri during office hours)

Website: http://www.robertsradio.co.uk

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