Gebruiksaanwijzing /service van het product DA-250F CU van de fabrikant Vizio
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MUL TICHANNEL POWER 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 equipment. Note: The figure shows the DA-250F.
2 T ABLE OF CONTENTS 1. IMPORT ANT SAFETY INSTRUCTIONS .................................................... 3 2. SAFETY PRECAUTIONS ............................................................................... 4 3. GENERAL DESCRIPTION ..............
3 1. IMPORT ANT SAFETY INSTRUCTIONS • Read these instructions. • Keep these instructions. • Heed all warnings. • Follow all instructions. • Do not use this apparatus near water. • Clean only with dry cloth. • Do not block any ventilation openings.
4 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.
5 • 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.
6 3. GENERAL DESCRIPTION TOA's DA-250F and DA-250FH Multichannel Power Amplifiers feature high power handling capabilities and durability. The DA-250F is configured with 250 W x 4 channels (4 Ω output) and 170 W x 4 channels (8 Ω output), and the DA-250FH features a 250 W x 4 channels (70 V line, 19.
Rack mounting screws are not supplied with the unit. Be sure to use the screws with a diameter of over 5 mm (0.2") and length of over 12 mm (0.47") to mount the unit. Failure to do so may cause personal injury. CAUTION 6. INST ALLA TION PRECAUTIONS 7 • The supplied power supply cord is designed for exclusive use with this unit.
8 1. Power switch [ ON / OFF] Turning this switch on causes the amplifier to function, and turning it off causes the amplifier to cease function. Note: The unit is not completely disconnected from the power supply even if this Power switch is turned off.
9 [Rear] 6 7 8 DA-250F 9 9 10 11 6 7 8 DA-250FH 9 9 10 11 6. AC inlet Connect the supplied power cord to this inlet. The socket-outlet shall be installed near the equipment and the plug (disconnecting device) shall be easily accessible.
10 Step 1. Turn off this unit's Power switch. Step 2. Set the BRIDGE ON/OFF switches and CH 1 mode ON/OFF switch. Step 3. Connect the sound source equipment to the Input terminals. Note: Refer to p. 12 for the removable terminal plug connection. Step 4.
11 CH4 - + CH3 - + CH2 - + CH1 - + [1 input - 4 outputs] CH1 CH1 CH2 CH3 CH4 – + – + – + – + Switch BRIDGE 1 BRIDGE 2 CH 1 mode OFF OFF ON Setting Speaker output terminals 4 – 8 Ω 4 – 8 Ω 4 – 8 Ω 4 – 8 Ω 19.6 Ω 19.6 Ω 19.6 Ω 19.
12 Connector connections Step 1. Loosen the terminal screw, then insert the cable. Step 2. Retighten the terminal screw. (Pull on the cable to ensure it is securely connected.) Tip Recommended slotted screwdriver type: Screwdriver with blade that is 3 mm (0.
13 10. INPUT SENSITIVITY AND HIGH-P ASS FIL TER ON/OFF SETTINGS The Input sensitivity can be set to +4 dB (factory-preset) or –10 dB for each channel. Besides, only the DA-250FH employs the High-pass filter on each channel, which can be set to "ON" or "OFF.
14 1 1. PROTECTION OPERA TION LIST Failure Protection Operation Indicator Remedy Recovery Overcurrent due to overload Current limiter activated when impedance drops below the specified value. Peak indicator lights. Remove overload. Connecting a correct load automatically restores normal operation.
15 13. CLEANING THE FIL TER 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.
16 H C CH 1 INPUT E H C CH 2 INPUT E Current Limiter Short Detector Protection Circuit OUTPUT 1 relay CH 1 OUTPUT CH 2 OUTPUT +4 dB - 10 dB CH 1 sensitivity selection jumper (+4 dB/ - 10 dB) CH 1 inpu.
17 14.2. DA-250FH OFF ON CH 2 HPF ON/OFF jumper HPF 50 Hz OFF ON CH 3 HPF ON/OFF jumper HPF 50 Hz OFF ON CH 4 HPF ON/OFF jumper HPF 50 Hz H C CH 1 INPUT E H C CH 2 INPUT E Current Limiter Short Detect.
18 15. DIMENSIONAL DIAGRAM Unit: mm (inches) 401.8 (15.82) 371 (14.61) 22.5 (0.89) 482 (18.98) 465 (18.31) 442 (17.4) 31.8 (1.25) 44 (1.73).
19 * 0 dB = 0.775 V Note: The design and specifications are subject to change without notice for improvement. Power cord (2 m or 6.56 ft) .................................................. 1 Removable terminal plug (3 pins) ...........................
133-22-027-0B URL: http://www.toa.jp/ * 0 dB = 0.775 V Note: The design and specifications are subject to change without notice for improvement. Power cord (2 m or 6.56 ft) .................................................. 1 Removable terminal plug (3 pins) .
Een belangrijk punt na aankoop van elk apparaat Vizio DA-250F CU (of zelfs voordat je het koopt) is om de handleiding te lezen. Dit moeten wij doen vanwege een paar simpele redenen:
Als u nog geen Vizio DA-250F CU heb gekocht dan nu is een goed moment om kennis te maken met de basisgegevens van het product. Eerst kijk dan naar de eerste pagina\'s van de handleiding, die je hierboven vindt. Je moet daar de belangrijkste technische gegevens Vizio DA-250F CU vinden. Op dit manier kan je controleren of het apparaat aan jouw behoeften voldoet. Op de volgende pagina's van de handleiding Vizio DA-250F CU leer je over alle kenmerken van het product en krijg je informatie over de werking. De informatie die je over Vizio DA-250F CU krijgt, zal je zeker helpen om een besluit over de aankoop te nemen.
In een situatie waarin je al een beziter van Vizio DA-250F CU bent, maar toch heb je de instructies niet gelezen, moet je het doen voor de hierboven beschreven redenen. Je zult dan weten of je goed de alle beschikbare functies heb gebruikt, en of je fouten heb gemaakt die het leven van de Vizio DA-250F CU kunnen verkorten.
Maar de belangrijkste taak van de handleiding is om de gebruiker bij het oplossen van problemen te helpen met Vizio DA-250F CU . Bijna altijd, zal je daar het vinden Troubleshooting met de meest voorkomende storingen en defecten #MANUAl# samen met de instructies over hun opplosinge. Zelfs als je zelf niet kan om het probleem op te lossen, zal de instructie je de weg wijzen naar verdere andere procedure, bijv. door contact met de klantenservice of het dichtstbijzijnde servicecentrum.
