Toa DA-500FH CE Operating Instructions Manual Download Page 3

3

When Installing the Unit

• Do not expose the unit to rain or an environment

where it may be splashed by water or other liquids,
as doing so may result in fire or electric shock. 

• Use the unit only with the voltage specified on the

unit. Using a voltage higher than that which is
specified may result in fire or electric shock.

• Do not cut, kink, otherwise damage nor modify the

power supply cord. In addition, avoid using the
power cord in close proximity to heaters, and never
place heavy objects -- including the unit itself -- on
the power cord, as doing so may result in fire or
electric shock. 

• Be sure to replace the unit's terminal cover after

connection completion. Because the voltage of up
to 100 V is applied to the high impedance speaker
terminals, never touch these terminals to avoid
electric shock. (DA-500FH only)

• External wiring connected to the terminals marked

with 

requires installation by an instructed person.

• The apparatus shall be connected to a mains

socket outlet with a protective earthing connection.

When the Unit is in Use 

• Should the following irregularity be found during

use, immediately switch off the power, disconnect
the power supply plug from the AC outlet and
contact your nearest TOA dealer. Make no further
attempt to operate the unit in this condition as this
may cause fire or electric shock. 
· If you detect smoke or a strange smell coming

from the unit.

· If water or any metallic object gets into the unit 
· If the unit falls, or the unit case breaks 
· If the power supply cord is damaged (exposure of

the core, disconnection, etc.)

· If it is malfunctioning (no tone sounds.)

• To prevent a fire or electric shock, never open nor

remove the unit case 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 metallic objects on top of the unit. If they
accidentally spill into the unit, this may cause a fire
or electric shock. 

• Do not insert nor drop metallic objects or flammable

materials in the ventilation slots of the unit's cover,
as this may result in fire or electric shock. 

• Do not touch a plug during thunder and lightning,

as this may result in electric shock. 

When Installing the Unit

• Never plug in nor remove the power supply plug with

wet hands, as doing so may cause electric shock.

• When unplugging the power supply cord, be sure to

grasp the power supply plug; never pull on the cord
itself. Operating the unit with a damaged power
supply cord may cause a fire or electric shock.

• When moving the unit, be sure to remove its power

supply cord from the wall outlet. Moving the unit
with the power cord connected to the outlet may
cause damage to the power cord, resulting in fire or
electric shock. When removing the power cord, be
sure to hold its plug to pull. 

• Avoid installing the unit in humid or dusty locations,

in locations exposed to the direct sunlight, near the
heaters, or in locations generating sooty smoke or
steam as doing otherwise may result in fire or
electric shock. 

• To avoid electric shocks, be sure to switch off the

unit's power when connecting speakers.

1. SAFETY PRECAUTIONS

• Before installation or use, be sure to carefully read all the instructions in this section for correct and safe operation.
• Be sure to follow all the precautionary instructions in this section, which contain important warnings and/or

cautions regarding safety.

• After reading, keep this manual handy for future reference.

Safety Symbol and Message Conventions 

Safety symbols and messages described below are used in this manual to prevent bodily injury and property
damage which could result from mishandling. Before operating your product, read this manual first and
understand the safety symbols and messages so you are thoroughly aware of the potential safety hazards. 

WARNING

Indicates a potentially hazardous situation which, if mishandled, could
result in death or serious personal injury.

Indicates a potentially hazardous situation which, if mishandled, could
result in moderate or minor personal injury, and/or property damage.

WARNING

CAUTION

CAUTION

Summary of Contents for DA-500FH CE

Page 1: ...WER AMPLIFIERS DA 550F CE DA 500FH CE 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...

Page 2: ...UT SENSITIVITY SETTING 12 10 PROTECTION OPERATION LIST 12 11 TAMPER PROOF CAP ATTACHMENT 13 12 CLEANING THE FILTER 13 13 DIMENSIONAL DIAGRAM 13 14 BLOCK DIAGRAMS 14 1 DA 550F 14 14 2 DA 500FH 14 15 HO...

Page 3: ...e a fire or electric shock Do not insert nor drop metallic objects or flammable materials in the ventilation slots of the unit s cover as this may result in fire or electric shock Do not touch a plug...

Page 4: ...er to the presence of uninsulated dangerous voltage within the product s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons The unit is designed exclusivel...

Page 5: ...nser Never use benzene thinner alcohol or chemically treated cleaning cloth because such volatile liquids could deform or discolor the unit 5 INSTALLATION PRECAUTIONS The supplied power supply cord is...

Page 6: ...ights yellow when an output level exceeds about 1 W at an 8 load DA 550F or 20 load DA 500FH Peak indicator PEAK Lights red when an output signal clips distortion occurs Protection indicator PROTECT L...

Page 7: ...10 BRIDGE ON OFF switches DA 550F only BRIDGE 1 BRIDGE 2 ON OFF Used when bridge connecting the unit s Channels 1 and 2 and Channels 3 and 4 See p 8 Settings and Connections 4 channel input mode Set...

Page 8: ...nal cover in place Be sure to replace the unit s terminal cover after connection completion Because high voltage is generated at the speaker output terminals never touch these terminals to avoid elect...

Page 9: ...2 3 inputs 3 outputs 1 CH3 CH4 Speaker output terminals Switch BRIDGE 1 BRIDGE 2 CH 1 mode ON OFF OFF Setting 8 4 8 4 8 CH3 CH4 CH1 CH3 CH4 CH1 CH2 BRIDGE 1 3 inputs 3 outputs 2 BRIDGE 1 BRIDGE 2 Spe...

Page 10: ...CH 1 mode OFF Setting 20 20 20 20 CH1 CH1 CH2 CH2 CH3 CH3 CH4 CH4 4 inputs 4 outputs factory preset CH4 CH3 CH2 CH1 Speaker output terminals Switch CH 1 mode ON Setting 20 20 20 20 CH1 CH1 CH2 CH3 CH...

Page 11: ...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 12: ...tact the TOA dealer where the unit was purchased 9 INPUT SENSITIVITY SETTING The input sensitivity for each channel can be set to either 4 dB factory preset or 10 dB These servicing instructions are f...

Page 13: ...filter and ventilation panel Detach the panel by pressing on the right side Filter Ventilation Panel Ventilation Panel 2 3 13 DIMENSIONAL DIAGRAM 465 442 76 2 88 4 482 371 22 5 404 2 Unit mm 11 TAMPER...

Page 14: ...el control ON OFF BRIDGE 2 ON OFF switch BRIDGE 2 OUTPUT Current Limiter Short Detector Protection Circuit OUTPUT 4 relay H C CH 3 INPUT E H C CH 4 INPUT E 14 2 DA 500FH H C CH 1 INPUT E H C CH 2 INPU...

Page 15: ...off in response to the power ON OFF status protection status and fan operation status from the distant location using this terminal This monitor terminal is a photocoupler open collector output termin...

Page 16: ...dicator front panel Light off Light on Protection status output OFF ON 16 Terminal Pin No Pin name Unit operation status HI LEVEL LO LEVEL CH1 2 CH1 power ON OFF control input CH1 power OFF CH1 power...

Page 17: ...for LAN CAT5 STP RJ45 pin No To Control Monitor terminal 1 2 5 6 3 4 7 8 Shield RJ45 pin No Cable color Cable color for T568B for T568A Orange white Green white Orange Green Green white Orange white B...

Page 18: ...re rise over 100 C 100 dB A weighted 70 dB A weighted Control input Power ON OFF status of the individual channels Photocoupler input drive voltage 9 V DC Min 14 V Max 12 V Typ Monitor output Power ON...

Page 19: ...A weighted 70 dB A weighted Control input Power ON OFF status of the individual channels Photocoupler input drive voltage 9 V DC Min 14 V Max 12 V Typ Monitor output Power ON OFF status of the indivi...

Page 20: ...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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