Numark Industries DM1200, DM1285, DM1235 owner manual Beatkeeper Troubleshooting

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DM1200/DM1235/DM1285

BEATKEEPER TROUBLESHOOTING

T1 The BPM goes way off when using the search button on my high tech CD mixer.

Some high tech CD mixers have a cueing feature which allows you to cue precisely to an exact spot in the music so you can slam mix. The only problem is that this mode repeats the first beat of the music at a rate which is unrelated to the actual BPM of the music. As a result, the BPM goes off track. The best way to avoid this is to restart the music after a search. Make sure the Beatkeeper is resynced to the music and then press the Cue button on the CD player. The Beatkeeper will remember the BPM and track the music once it starts.

T2 The Beatkeeper doesn't resync to the downbeat of the music when the music restarts.

Either the downbeat isn't strong enough to be detected, or the music was started well before a strong downbeat. You can easily resync to the

downbeat by tapping the Beat Assist button once with the beat. Alternatively you can cue the music to a strong downbeat so that the Beatkeeper starts on this downbeat.

T3 Either the BPM display is blank, or it is noticeably off .

This is common at the beginnings of songs where the beat is not well defined. To sync simply tap the Beat Assist button two or more consecutive times on the downbeat. The Sync Lock LED turns on automatically, indicating that the Beatkeeper is now tracking the beat of the music.

T4 The BPM display is correct, but the beat LED isn't flashing on the downbeats of the music.

If this happens tap the Sync Lock button (turning the Sync Lock LED on) and tap the Beat Assist button once to make the Beatkeeper track the downbeat. You can also use this to force the Beatkeeper to track an offbeat for more advanced mixing.

Alternatively you may sync manually by tapping the Beat Assist button 2 or more times on the beat.

T5 The Beats per minute number seems to jump all over the place .

The Beatkeeper is analyzing different sections of the music to find the BPM. If there is a temporary suspension of a distinct beat or if the rhythm is too complex, this number may not follow the actual BPM.

a)You can wait for a passage of music with a steady beat for a more accurate BPM indication.

b)Hit the Sync Lock button once the Red beat LED starts following the beat

or c) Tap the Beat Assist button at least twice along with the music beat. Either method (b or c) will cause the Sync Lock LED to turn and lock on, indicating that the Beatkeeper is now tracking the music.

T6 It takes too long for the Beatkeeper to find the beat on its own.

To speed up the BPM detection process, tap the Beat Assist button at least twice. At this point, the Beatkeeper will turn on the Sync Lock LED, immediately providing a BPM estimate, while resynchronizing to the beat you tapped.

T7 I hit the Sync Lock button, but the flashing Red beat LED doesn't seem to follow the beat.

This means you hit the Sync Lock button before the Red beat LED actually started tracking the tempo. You can easily fix this by tapping the Beat Assist buttons as many times as necessary to resync to the beat of the music.

T8 The beat tracking suddenly gets off track.

This may happen if the music has several beats missing, or the rhythm suddenly becomes extremely complex or variable. You can either resync the beat using the Beat Assist button or wait a few seconds for the Beatkeeper to automatically recover.

T9 The Beatkeeper seems to track the music for a short time right after using the Beat Assist and then drifts off .

This could be one of two things:

a)The Beatkeeper is averaging the time between each of your Beat Assist button taps. If the first tap is way off, the tempo will be way off.

b)The Beatkeeper was synced during a section of the music without a well defined beat.

In either case, the problem can be overcome by waiting a few seconds before preceding to tap the Beat Assist button two or more times with the beat of the music.

T10 Either the BPM number or Red beat LED doesn't track the music fast enough while using the pitch bend on my CD player (or speed control on my record player).

You may have exceeded the tracking capability of the Beatkeeper. The Beatkeeper can normally handle speed changes of +/- 5% per beat if the music's rhythm is steady. If the rhythm is complex (or some of the beats are missing) the Beatkeeper will require more gradual changes to track properly.

*If you are using a record player or a wide range pitch bend on a CD player, note that the Beatkeeper only tracks +/- 11.5% from the tempo at which it was synced. You may need to resync the Beatkeeper if you exceed this range while attempting to align tempos.

*You can also manually resync the beat using the Beat Assist button.

T11 Neither the Tempo Difference graph or the Beat Offset graph seem to work.

The bar graphs are only operational when both Sync Lock LEDs are illuminated. This ensures that you don't inadvertently try to mix two songs without their tempos being synced.

To make the bar graphs operational, either:

a)Wait for the Red beat LED’s to follow the music and tap the respective Sync Lock button or

b)Tap the Beat Assist button twice with the beat of the music. Either method will cause the Sync Lock LED to illuminate.

T12 The Beat Offset graph is not illuminated, but the Tempo Difference graph is.

This indicates that one or both of the inputs are not playing. The Beat Offset graph turns off when there are no beats available for tracking on either or both inputs. The graph automatically restarts once both

inputs become active again.

T13 The Beat Offset graph has the GreenLED illuminated when the Red beat LEDs are a half beat off from each other.

This indicates that the songs are synced at their half beats. With rap music and some house, mixing is often done on the half beats rather than the down beats themselves. The Beatkeeper intentionally syncs this way to give the DJ the option of beat-to-beat mixing or beat-to- halfbeat mixing.

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Contents DM1200/DM1235/DM1285 Stereo Mixer U T I O N DM1200/DM1235/DM1285Index Congratulations Important Information System PrecautionsDM1200 Front Panel Diagram DM1235/DM1285 Front Panel Diagram Study the Connections Diagram on Installation and OperationChannel INPUTS/CONTROLS Section Crossfader SectionDJ MIC Section MASTER/BOOTH Output SectionEqualizer Section Power Switch and Power On LEDGeneral EQ Hints Monitor SectionDM1235 with theBEATKEEPER Syncing Your Beatkeeper Channel SelectionBeat Assist Two Channel MixingPrepping For a Mix Channel MixingSyncing To Off Beats Beatkeeper Troubleshooting To Record a Sample DM1285 with Digital SamplerAbout Stuttering Memory Bank Select Pushbuttons A-DRear Panel Inputs and Outputs DM1200/DM1235/DM1285 Rear Panel DiagramConnection Diagram Power Consumption SpecificationsWeight DM1200 Frequency ResponseBlock Diagram Equipment Transport
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