Dynacord DMM 4650 owner manual Appendix, Troubleshooting, Error Name Function test

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APPENDIX

Troubleshooting

In stand-by mode the DMM 4650 runs a number of test routines in order to detect device faults at an early stage. Errors are indicated by the flashing of the green POWER LED. With fatal errors or when errors start to appear more often the blinking of the LED gets faster and the fault relay drops. At the same time, the audio input is connected directly to the output via the bypass relay.

The menu “self test” provides a listing of error numbers and occurence of the following mesages:

No:

Error Name

Function test

1

Reset

Power-On counter, no message displayed

2

Software

faulty micro processor interrupt

3

Modul-ID

changing number and activity of control ports (A-D) during power-on

4

+/- 15V

tests internal supply-voltage ± 15V

5

Bypass

function of audio bypass relay (hardware and software)

6

Fault

function of fault relay (hardware and software)

7

User-mem

data error of passwords and their priorities

8

Trig-mem

data error in trigger settings

9

Sequ-mem

data error in user presets of sequences

10

Stop-mem

data error in user settings of stop triggers

11

Alrm-mem

data error in alarm user presets

12

Gong-mem

data error in gong user presets

13

Msg-dir

data error in message file management

14

Msg-chsu

data error in message audio data (see also “message” on page 14 “*”)

15

ARS-RAM

communication error in DSP processor

16

ARS-mod

software error in DSP processor

17

Flash

tests for a changed number of flash memory cards

18

Block

faulty blocks in flash memory has been occurred later

19

EEPROM

error at writing into EEPROM

20

ROM

data modification of the microprocessor’s EPROM

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Contents Description DMMContents Page Page Installation instructions Multi-function Display Front PanelRear Panel Use of the DMM Sequence function General Operating the DMMPasswort Operation menu message Message number, PresetMessage GeneralSoft key edt Message memory extension Recording levelRemote recording Audio quality, recording durationOperation menu gong Gong PresetsGong Type four-stroke, three-stroke List of available gong parametersOperation menu alarm AlarmAlarm Presets Type continuous sound List of available alarm parametersType Uni-sweep Type Bi-sweepType burst Type Jump soundOperation menu announcement AnnouncementOperation menu trigger TriggerTrigger recognition Examples for trigger settingsStop trigger Sequence PresetsSequences Operation menu sequenceFunction CommandSequence example DMM= List of available step functions in sequencesOperation menu system setup Init DMM BackupSum level AttenuationClock RestoreRS232 Operation menu self test Self testPin Name ConnectionsControl levels and currents GeneralInputs Installation exampleAudio inputs and outputs Connection REMOTE/RS Remote, RS 232 interface, data backupInterface settings Backup, Restore commands, PriorityCommand Parameter Function List Remote commandsTerminal programs List of trigger signals Factory PresetsFactory settings, defaults List of factory preset sequences Priority Stopp trigger Alrm-Txt B2 Low 00,1s stc Start DIN alarm key B1 ON, Stop with key B1 OFFPriority Stopp trigger DIN-Alrm B1 Low 00,1s stc Start Pre-gong key B4 on, end of announcement with key Sequence Nummer Title Priority Stopp trigger Vierklng OffTone gong B4 Low 00,1s stcStops by pressing the input C3 button again Sequence Nummer Title Priority Stopp trigger Message2 OffPriority Stopp trigger EasyRec1 C3 High 00,1s lat Starts the recording of Message 01 remote recordingStops by pressing the input C4 again Priority Stopp trigger EasyRec2 C4 High 00,1s latStarts the recording of Message 02 remote recording Key is being pressed System input -20 dB BZB ABC alarmPriority Stopp trigger Ansage D3 Low 00,1s stc Priority Stopp trigger Fireship Off Ship alarm Fire Ship alarm General EmergencyTelephone bell Ship alarm Manual Morse keyPriority Stopp trigger ManMorse Off Gong no Title Prior Type Bar Attack Release Start Repeat cnt List of factory preset gong signalsList of factory preset alarm signals Appendix TroubleshootingError Name Function test User questions, hints Using the soft key set Examples for Alarm Texts Specifications DMM Warranty

DMM 4650 specifications

The Dynacord DMM 4650 is a powerful and versatile digital mixing console designed for professional audio applications. Built with cutting-edge technology and years of expertise in the audio industry, the DMM 4650 is a go-to solution for live sound engineers, rental companies, and permanent installations.

One of the primary features of the DMM 4650 is its 32 input channels, allowing for seamless integration of multiple sound sources. Each channel is equipped with high-quality preamps that deliver a clean, transparent sound. The console also includes 16 bus outputs, enabling flexible routing options for different sound systems, whether for front-of-house, monitors, or recording purposes.

The DMM 4650 comes with an intuitive user interface, highlighted by a large touchscreen display that provides clear access to all essential parameters and features. This interface allows users to navigate quickly through settings, making adjustments in real-time without disrupting the audio flow. Additionally, the console supports multiple layers of channels, giving engineers the ability to work efficiently during complex shows.

One standout technology incorporated in the DMM 4650 is its digital signal processing (DSP) capabilities, which include high-quality equalizers, dynamics processors, and effects units. The onboard DSP can manage multiple effects such as reverb, delay, and modulation, giving users a wide range of sound-shaping tools. Moreover, the DMM 4650 features an advanced audio networking option, allowing for easy connectivity with other digital equipment and systems, promoting a streamlined workflow.

Robust connectivity is a hallmark of the DMM 4650, which sports both analog and digital outputs, including AES/EBU and MADI options. This flexibility ensures that the console can adapt to various setups and can coexist with existing audio infrastructure without hassle.

Durability is also a key characteristic of the DMM 4650. Designed for the rigors of live performance, the console's rugged construction ensures reliable operation in demanding environments. Whether it's a large concert, corporate event, or installation in a house of worship, the DMM 4650 is engineered to deliver outstanding performance consistently.

In conclusion, the Dynacord DMM 4650 is a comprehensive digital mixing console that combines advanced technology with user-friendly features. Its high-quality audio processing, extensive connectivity options, and robust build make it an excellent choice for audio professionals looking to elevate their sound mixing capabilities.
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