Toa DA-250D Operating Instructions Manual Download Page 12

12

11. CLEANING THE FILTER

Step 1.

Turn off this unit's Power switch. 

Step 2.

Remove the ventilation panel as shown in the figure. 

Step 3.

Detach the filter inside the ventilation panel.

Step 4.

Clear the filter of dust. 

Step 5.

Replace the filter and ventilation panel. 

Ventilation Panel 

2

3

Filter

Ventilation Panel

Detach the panel by pressing on the left or right side. 

12. DIMENSIONAL DIAGRAM

Unit: mm

401.8

371

22.5

482

465

442

31.8

44

Summary of Contents for DA-250D

Page 1: ...l Power Amplifier Please carefully follow the instructions in this manual to ensure long trouble free use of your equipment OPERATING INSTRUCTIONS An all pole mains switch with a contact separation of...

Page 2: ...AND CONNECTIONS 7 1 Switch Settings and Speaker Connections 7 1 1 When using the DA 250D 8 7 1 2 When using the DA 250DH 9 8 REMOVABLE TERMINAL PLUG CONNECTION 10 9 PROTECTION OPERATION LIST 11 10 TA...

Page 3: ...ed service personnel Do not place cups bowls or other containers of liquid or metallic objects on top of the unit If they accidentally spill into the unit this may cause a fire or electric shock Do no...

Page 4: ...may result If dust accumulates on the power supply plug or in the wall AC outlet a fire may result Clean it periodically In addition insert the plug in the wall outlet securely Turn off this unit s po...

Page 5: ...e such volatile liquids could deform or discolor the unit 5 INSTALLATION PRECAUTIONS The supplied power supply cord is designed for exclusive use with this unit Never use it with other equipment When...

Page 6: ...vel exceeds about 20 dB Output indicator OUTPUT Lights yellow when an output level exceeds about 1 W at an 8 load DA 250D or 40 load DA 250DH Peak indicator PEAK Lights red when an output signal clips...

Page 7: ...mode Set BRIDGE switch to ON Note Be sure to first turn off the Power switch 1 when changing these switch settings 10 CH 1 mode ON OFF switch PARALLEL ON OFF Setting this switch to ON transmits the Ch...

Page 8: ...utput terminals 4 4 Replace the output terminal cover in place Be sure to replace the unit s terminal cover after connection completion Because high voltage is generated at the speaker output terminal...

Page 9: ...CH1 CH1 CH2 CH2 1 input 2 outputs 2 inputs 2 outputs factory preset 40 40 40 40 Speaker output terminals 8 CH2 CH1 Speaker output terminals Switch BRIDGE CH 1 mode OFF ON Setting 4 8 4 8 CH1 CH1 CH2...

Page 10: ...sens Terminal screw Slotted screwdriver Shielded cable Removable terminal plug Hot Cold Earth 1 1 2 Bit shape 3 mm 8 REMOVABLE TERMINAL PLUG CONNECTION Cautions Be sure to use shielded cables for audi...

Page 11: ...operation Short circuit Current limiter activated Load is disconnected Protection indicator lights Check speakers and lines for short circuit Temperature rise at power amp heat sink over 100 C Load di...

Page 12: ...the figure Step 3 Detach the filter inside the ventilation panel Step 4 Clear the filter of dust Step 5 Replace the filter and ventilation panel Ventilation Panel 2 3 Filter Ventilation Panel Detach...

Page 13: ...uit Current Limiter Short Detector Protection Circuit H H E C C CH 1 INPUT E H H E C C CH 2 INPUT E 13 BLOCK DIAGRAMS 13 1 DA 250D 13 2 DA 250DH PARALLEL switch OUTPUT 1 relay CH 1 OUTPUT CH 2 OUTPUT...

Page 14: ...C temperature rise inside the unit over 80 C 100 dB A weighted 70 dB A weighted Power blue x 1 Input green x 2 Output yellow x 2 Peak red x 2 Protect red x 2 Forced air cooling 10 C to 40 C Under 90 R...

Page 15: ...etween barriers 8 8 mm 50 20 000 Hz 3 dB 1 dB 0 1 1 kHz 0 3 100 20 000 Hz Protection against excessive current flow due to overload short circuit unusual DC voltage output temperature rise at power am...

Page 16: ...raceability Information for Europe EMC directive 2004 108 EC Manufacturer TOA Corporation 7 2 1 Minatojima Nakamachi Chuo ku Kobe Hyogo Japan Authorized representative TOA Electronics Europe GmbH Sued...

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