Question about Altec Lansing ACS 52 Computer Speakers

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Burned amplfier ic

Good day to you sirs. can you pls help me with my pc speaker model acs53. i just want to asked you sirs, if you have an idea of what is the value or the part no the amp ic of my altec lansing acs53 pc spkr. i cannot read the value coz its already burned out. can you pls help me sirs. thanks

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A very simple solution to that , if you have no service manual of your gadget,,try google and search for your model or specify the part ,,eg.. ic , (how mny pins ?) , google could even give you the pin configurations. I already tried this ,,,,, dont hesitate,,nothing will be nil anyway....Second option, try to visit RadioShacks in your area and bring your speakers for better check up or they could give you another substitute part.....good luck...

Posted on Apr 05, 2008

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I have no audio device can not turn speakers on


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Hi,

Appreciate the direct "Ask Me".

It would seem that the documentation where you sourced the info S-Series Ultra Durable Motherboard. 945PL-DS3/S3 (rev.2.0) is intended for a number of different models. From what I can gather, you have a Giga-byte motherboard either a GA-945PL-DS3, GA-945PL-S3 or a GA-945PL-S3E all Rev. 2.0.

Assuming that it is a 945PL-DS3 (rev. 2.0), then the audio driver would be "Realtek Function driver for Realtek Azalia audio chip (Including Microsoft UAA Driver)". Pls verify if it were so.

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To my knowledge, a Logitech X-540 does not need a driver to operate. However, it is the sound card in the PC that would need drivers. Further, the sound card should be capable of 5.1 surround sound system and should have three (3) sound output which includes. All of these would have individual jacks to match the different plugs of the X-540 (green, black and orange plugs). The X-540 in turn would output the 3 inputs to front pair, rear pair, center and sub woofer. The green goes to the front L/R, the black to the rear L/R and the orange to the center/sub.

Perhaps you can post back with the brand/model of your PC , and your soundcard or motherboard. Knowing your OS would also be helpful.

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1 Answer

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Most computer speaker system will indicate power when switched on. The on switch could be a push button type or rotary built-in to the volume control. There are however models that are automatically powered on once plug to the mains.

In instances such as this that even though plug to the mains, switched on and yet still LEDS does not light up is indicative of a power supply problem. This could be as simple as a fuse blown or worst burnt components.

Pls, first thing you need to check is if the speakers are rated the same as the local/mains voltage where your are. Example, if the speakers were bought from and meant for US, chances are that they are 120VAC; if your are currently based in Europe, then the local mains would be 220~240VAC, simply plugging in and powering would burn a fuse or a transformer or a regulator. The reverse could possibly also hold true since it will be getting about half of what it is designed to receive (unit is 240 but used in 120).

If the above does not apply to your concern or even if it does, the power supply must be checked, diagnosed and possibly would require repair. This would involve familiarity and knowledge of electronic circuitry and components, use of a DVM and a soldering iron. If you are not comfortable going through this route, perhaps your best bet would be to seek the services of an electronics technician.

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1 Answer

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Hi, probably two things that can go dead, 1) the woofer itself and/or 2) the amplifier. I will rule out poser supply cos the other speakers are working. Normally they have a separate amplifier than that of the woofer. If you are comfortable working with a soldering iron and a multi tester, after unplugging from the mains, then you open the enclosure and check the continuity of woofer which should read between 4-8 ohms, if it is open or no reading, replace just 2 wires/terminals involve with 3 or 4 screws. If the woofer reads a continuity, then it is the amp which normally is just a single power IC attached to an aluminum heatsink. In some instances, it may be a power transistor pair. In any case you have to be familiar with component level repair. Otherwise, you are probably better off asking a qualified service personnel to do the repair job. Hope this be of some help. Pls post how things turn up. Regards.

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