Instruction/ maintenance manual of the product IP-450D TOA Electronics
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OPERATING I NSTRUCTIONS I P Series DUAL POWER AMPLIFIERS IP-600D IP-450D IP-300 D TABLE OF CONTENTS 1 . SAFETY PRECAUTIONS 2. GENERAL DESCRIPTION 3. FEATURES 4. HANDLING PRECAUTIONS 5. NOMENCLATURE AND FUNCTIONS Front panel Rea r panel 6. INSTALLATION 7.
1 . SAFETY PRECAUTIONS B e sure to r ea d the instructions i n this section carefully before use. M a ke sure to observe the instructions in this m anual as t h e conventions o f safety symbols and messages regarded as very important precautions are inc l uded.
When Installing t he Unit Never plug in nor remove t he power supply pl ug with w et hands, as doing so m ay cause electric shock. Wh en unplugging the power supply cord, be sur e to grasp the power supply plug; never pull on th e co r d itself. Operating the un it wi th a damaged power supply cord m ay cause a fire o r electric shock.
2 . GENERAL DESCRIPTION TOA's I P series dual power amplifiers feature high durability, high quality sound and high output power (IP- 30 0 D : 300 W , IP-450D: 450 W, IP-600D: 600 W - wh e n a 4 load connected). Input/output levels and other fu n ct i o ns c an be remotely controlled f r o m external equipment.
5. NOMENCLATURE AND FUNCTIONS [ Front Panel ] Power switch Power is switched on and of f with each depression o f this switch. Power indicator lamp Lights green when the power is switched on . Signal indicator l amp Lights green regardless of th e in put level control setting when there i s a n input of a signal with a level exceeding -30 dB .
[R e a r panel] Input t ermi nal Electrically-balanced input terminals. T h e 3P screw terminal is connected i n parallel wi t h a balanced phone jack. Also, the in p ut ca n be converted into a transformer- balanced input usin g a n optional matching transformer LT-101.
6. INSTALLATION Carefully note heat radiation when in st a lling t he unit. These power amplifiers are equipped with a cooling fan. To avoid heat buildup, ensure that the rear o f th e unit is at least 10 cm away from th e wall surface. Wh en mounting the u n it in the rack, the i nsid e of the rack must be w e l l ventilated.
7. CONNECTIONS 1 . Swi tch o f f th e amplifier power. 2. Unscrew the output terminal cover. 3. Strip 1 0 mm o f insulative jacket f r om th e end of the speaker cable, as shown i n the figure a t right. 4. Connect speaker cables to the output terminals.
8. CLEANING THE FILTER 1 . Switch off the ampl ifier power. 2 . Pu l l the filter from th e front panel as shown in the figure. 3. Clean the filter. 4 . F i t th e filter i n place. [Precautions] Mak e sure that the f a n i s turned off when removing the filter.
1 0. IN STA LL ING AN OPTIONAL M ATCHING T RANSFORMER LT-101 [ CAUTION ] THESE SERVICING INSTRUCTIONS A R E FOR USE BY QUALIFIED PERSONNEL ONLY. T O AVOID ELECTRIC S HOCK, D O N OT PERFORM ANY SERVICING OTHER THA N THA T CONTAINED IN THE OPERATING INSTRUCTIONS UNLESS YO U A R E QUALIFIED TO D O SO.
1 2. TABLE FO R PROTECTION CIRCUIT ACTIONS Symptom Excessive current flow due to overload Short circuit (under 0.5 ) Heat sink temperature rise Unusual DC v o ltage output Action Current limiter operates when lo ad resistance is under 2.5 (STEREO/ PARALLEL) or 5 (BTL).
14 . SPECIFICATIONS Model No . Output 20 Hz - 2 0 kHz STEREO RL=4 RL=8 BT L RL=8 Frequency Response Total Harmonic Distortion 8 , 1 kHz 8 , 20 H z - 20 kH z Intermodulation Distortion 6 0 Hz : 7kHz= 4.
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If you already are a holder of TOA Electronics IP-450D, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime TOA Electronics IP-450D.
However, one of the most important roles played by the user manual is to help in solving problems with TOA Electronics IP-450D. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device TOA Electronics IP-450D along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
