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Toa DA-250F CU, Руководство по эксплуатации, Страница: 2 / 20

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TABLE OF CONTENTS

1. IMPORTANT SAFETY INSTRUCTIONS

.................................................... 3

2. SAFETY PRECAUTIONS

............................................................................... 4

3. GENERAL DESCRIPTION 

............................................................................. 6

4. FEATURES 

.......................................................................................................... 6

5. HANDLING PRECAUTIONS 

.......................................................................... 6

6. INSTALLATION PRECAUTIONS 

................................................................. 7

7. NOMENCLATURE AND FUNCTIONS 

Front ......................................................................................................................... 8
Rear .......................................................................................................................... 9

8. CONNECTIONS

8.1. Procedure ......................................................................................................... 10
8.2. Button Settings and Speaker Connections  ...................................................... 10

9. REMOVABLE TERMINAL PLUG CONNECTION 

.................................. 12

10. INPUT SENSITIVITY AND 

HIGH-PASS FILTER ON/OFF SETTINGS

................................................ 13

11. PROTECTION OPERATION LIST

............................................................... 14

12. VOLUME CONTROL CAP ATTACHMENT 

.............................................. 14

13. CLEANING THE FILTER 

................................................................................ 15

14. BLOCK DIAGRAMS

14.1. DA-250F ........................................................................................................... 16
14.2. DA-250FH ........................................................................................................ 17

15. DIMENSIONAL DIAGRAM 

............................................................................ 18

16. SPECIFICATIONS 

............................................................................................ 19

Accessories ............................................................................................................. 19

Содержание DA-250F CU

Страница 1: ...WER AMPLIFIERS DA 250F CU DA 250FH CU Thank you for purchasing TOA s Multichannel Power Amplifier Please carefully follow the instructions in this manual to ensure long trouble free use of your equipm...

Страница 2: ...ont 8 Rear 9 8 CONNECTIONS 8 1 Procedure 10 8 2 Button Settings and Speaker Connections 10 9 REMOVABLE TERMINAL PLUG CONNECTION 12 10 INPUT SENSITIVITY AND HIGH PASS FILTER ON OFF SETTINGS 13 11 PROTE...

Страница 3: ...torms or when unused for long periods of time Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way such as power supply cord or plug...

Страница 4: ...as there are high voltage components inside the unit Refer all servicing such as modification inside the unit to qualified service personnel Do not place cups bowls or other containers of liquid or me...

Страница 5: ...AC outlet use the AC outlet with current capacity allowable to the unit When the Unit is in Use Make sure that all volume controls are set to minimum position before power is switched on Loud noise p...

Страница 6: ...ase Input output status LED indicators for each channel Built in protection circuitry disconnects the output when a short circuit overload or unusual temperature rise occurs 1U size 44 5 mm reference...

Страница 7: ...Perforated Panel larger than 1U in size 1 at the top and the bottom of the rack and 2 above and below every 5 units Perforated panel Power amplifiers DA 250F 250FH Power amplifiers DA 250F 250FH Robu...

Страница 8: ...and 4 In this event the CH 4 volume control cannot be used 4 Ventilation panel Air Vent A filter is located inside the ventilation panel To clean the filter remove the ventilation panel See p 15 Clea...

Страница 9: ...wiring See p 10 The unit s input mode changes as follows depending on the BRIDGE ON OFF button setting 4 channel input mode Set both BRIDGE 1 and 2 buttons to OFF 3 channel input mode Set either BRID...

Страница 10: ...terminal cover in place BRIDGE 1 ON OFF button BRIDGE 2 ON OFF button CH 1 mode ON OFF button CH4 CH3 CH2 CH1 Speaker output terminals Button BRIDGE 1 BRIDGE 2 CH 1 mode OFF OFF OFF Setting 4 8 4 8 4...

Страница 11: ...Setting CH3 CH4 3 inputs 3 outputs 2 CH3 CH4 CH1 CH3 CH4 CH1 CH2 Speaker output terminals 8 16 4 8 4 8 39 2 19 6 19 6 DA 250F DA 250FH BRIDGE 1 Button BRIDGE 1 BRIDGE 2 CH 1 mode ON OFF OFF Setting C...

Страница 12: ...old Earth Bit shape 3 mm 9 REMOVABLE TERMINAL PLUG CONNECTION Cautions Be sure to use shielded cables for audio signal lines Avoid soldering cable conductor as contact resistance may increase when the...

Страница 13: ...socket position to 4 dB or 10 dB for the Input sensitivity and to ON or OFF for the High pass filter DA 250FH only as illustrated below DA 250F 250FH Viewed from top with the top cover detached Front...

Страница 14: ...mperature over 110 C Load disconnected Protection indicator lights Temperature rise inside the unit over 80 C Built in amplifier unit that caused the failure halted Four indicators of the correspondin...

Страница 15: ...move 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 Detach the panel...

Страница 16: ...E 1 OUTPUT Current Limitter Short Detector Protection Circuit OUTPUT 2 relay CH 1 to all switch Current Limitter Short Detector Protection Circuit OUTPUT 3 relay CH 3 OUTPUT CH 4 OUTPUT 4 dB 10 dB CH...

Страница 17: ...10 dB CH 2 volume control ON OFF BRIDGE 1 ON OFF switch BRIDGE 1 OUTPUT Current Limitter Short Detector Protection Circuit OUTPUT 2 relay CH 1 to all switch Current Limitter Short Detector Protection...

Страница 18: ...18 15 DIMENSIONAL DIAGRAM Unit mm 482 465 400 374 20 31 8 44...

Страница 19: ...0 3 20 Hz 20 kHz 0 3 100 Hz 20 kHz HPF ON 0 3 20 Hz 20 kHz HPF OFF 4 dB 1 23 V 10 dB 0 24 V selectable with the inner jumper 10 k electronically balanced 100 dB Input CH 1 4 Removable terminal block O...

Страница 20: ...Printed in Japan 133 22 027 00...

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