Toa DT-940 Operating Instructions Manual Download Page 4

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Indicates a potentially hazardous situation which, if mishandled, could 

result in moderate or minor personal injury, and/or property damage.

CAUTION

3. INFORMATION TO THE USER

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 

15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference 

in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not 

installed and used in accordance with the instructions, may cause harmful interference to radio communications. 

However, there is no guarantee that interference will not occur in a particular installation. If this equipment does 

cause harmful interference to radio or television reception, which can be determined by turning the equipment 

off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

•  Reorient or relocate the receiving antenna.

•  Increase the separation between the equipment and receiver.

•  Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

•  Consult the dealer or an experienced radio/TV technician for help.

•  Do not touch a plug or antenna 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. 

•  Leave the installation of an antenna to your TOA dealer because the installation requires expert knowledge. 

Improper installation may cause the antenna to fall, resulting in personal injury or electric shock. 

•  Be sure to follow the instructions below when rack-mounting the unit. Failure to do so may cause a fire or 

personal injury.

·  Install the equipment rack on a stable, hard floor. Fix it with anchor bolts or take other arrangements to 

prevent it from falling down.

·  When connecting the unit's power cord to an AC outlet, use the AC outlet with current capacity allowable to 

the unit.

·  The  rack-mounting  screws  supplied  with  the  optional  rack-mounting  bracket  can  be  used  for  the  TOA 

equipment rack only. Do not use them for other racks.

When the Unit is in Use 

•  Do not place heavy objects on the unit as this may cause it to fall or break which may result in personal injury 

and/or property damage. In addition, the object itself may fall off and cause injury and/or damage.

•  Use the dedicated AC adapter for the unit. Note that the use of other adapter may cause a fire.

•  Contact your TOA dealer as to the cleaning. If dust is allowed to accumulate in the unit over a long period of 

time, a fire or damage to the unit 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.

•  Switch off the power, and unplug the power supply plug from the AC outlet for safety purposes when cleaning 

or leaving the unit unused for 10 days or more. Doing otherwise may cause a fire or electric shock. 

Summary of Contents for DT-940

Page 1: ...OPERATING INSTRUCTIONS AM FM TUNER DT 940 Thank you for purchasing TOA s AM FM Tuner Please carefully follow the instructions in this manual to ensure long trouble free use of your equipment...

Page 2: ...uning Mode 8 7 RECEIVING FREQUENCY MEMORY SETTINGS 8 7 1 Manual Memory Preset 9 7 2 Auto Memory Preset 9 8 RECALLING THE PRESET FREQUENCY 10 9 KEY LOCKING 11 9 1 When Enabling the Key Lock 11 9 2 When...

Page 3: ...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 Avoid installing or mounting the...

Page 4: ...nnected 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 l...

Page 5: ...LOCKING on p 11 5 AM FM band selector key Selects the desired band The indication alternates between AM and FM with each depression of this key See RADIO RECEPTION on p 7 6 Memory key Stores the rece...

Page 6: ...ound this cord clamp to prevent the FM antenna connector from coming off by being pulled when the supplied FM wire antenna is connected See FM Antenna Connections on p 14 15 Monaural output terminals...

Page 7: ...stored in memory the preset channel number is displayed on the LCD indicator When the frequency change comes to a stop holding down the Tuning key for 2 seconds or more once again searches the next r...

Page 8: ...n on the LCD indicator alternates between on and off each time this key is pressed If the stereo broadcast receiving sensitivity is low the broadcast is received in monaural mode and the STEREO indica...

Page 9: ...without key entry for the channel number the unit reverts to the former status When selecting the CH11 through CH20 if you enter no key after pressing the 10 key the received frequency in Step 1 above...

Page 10: ...ving frequency are displayed on the LCD indicator Notes Only when recalling the CH10 it takes approximately 1 second until its channel number and receiving frequency are displayed on the LCD indicator...

Page 11: ...g the Key lock key Tip Key lock status is retained even when the unit s power is switched off Key lock key LCD indicator Key lock status indication DT 940 rear Cable holder Note PA amplifier RCA stere...

Page 12: ...tion cannot be obtained with the supplied AM loop antenna connect a commercially available AM antenna or a long wire antenna externally Connect a cable core of the solid wire or the coaxial cable to o...

Page 13: ...le 1 Strip the cable jacket 35 mm 1 38 from the end of the coaxial cable 2 Fold back the shield wire over the cable then cut it to 10 mm 0 39 in length 3 Remove the insulator 15 mm 0 59 from the cable...

Page 14: ...ert it to F type connector using a 300 to 75 conversion connector then connect it to the FM antenna terminal Tip Be sure to use a 75 coaxial cable when installing the tuner in areas where radio signal...

Page 15: ...as required When installing a digital amplifier in the equipment rack where the unit is installed keep it at least 2 U away from the unit Noise may be produced if the digital amplifier is installed in...

Page 16: ...annels for AM 20 channels for FM Operating Temperature 0 to 40 C 32 to 104 F Operating Humidity 90 RH or less no condensation Finish Panel Aluminum hair line finish black Case Pre coated steel plate b...

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