20 Most Recent Creative Labs MegaWorks THX 550 Computer Speakers Questions & Answers

Inspire cartive p5800 remot pins digram

i lost my Creative cambridge sound work megaworks thx 5.1 550 cable.can i use any other cable?

Step 1:

i had same problem with my magaworks 5.1 thx550.i have tried to find solution in web but it was only one which voltage sense resistor 2Mohm track in PCboard was damaged.after check PCboard in my megaworks thx 550 i found that tracks are quite well and voltage sense resistor is well too.

Step 2:

REPAIRING PROCEDUREin below items there are repairing procedures that i did with my THX550.to access to BCboards it is required to remove electronic boards from woofer case.1- remove cover of woofer.2- remove woofer speaker from case by cutting and marking connected wires. 3- remove all Philips screws around cover and remove electronic parts smoothly, care about glues around power cord.4- remove and disconnect power supply board from other parts.5- replaced switcher TOP234Y and capacitors C102, C206, C205 and D10 as below photos.6 check all of related tracks in repairing area.7- now it is time to re assemble electronic parts very carefully and prepare for test. it is better to use isolated transformer and put a lamp in serial to protect PCboard against short circuit. if green LED (POWER LED) is on it means that every thing is O.K.8- in this step all of electronic parts should return back to case and reconnect sub woofer connections.

Step 3:

after replacing damaged parts my THX 550 is working well maybe for next 10 years.i hope above mentioned instruction can be useful and helpful.

A 5.1 sound card will give output in all channels only if the audio being played is also 5.1. Normally out of 6 Speakers only 2 front and sub woofer will play sound, in case of a DVD or Movie which has 5.1 encoding, all 5 will come alive. Also, Dolby Prologic II and Dolby Digital will convert a 2 channel input into psudo 5.1 enviornment but Dolby has to be in hardware or speakers or Receiver.

Step 1:

i had same problem with my magaworks 5.1 thx550.i have tried to find solution in web but it was only one which voltage sense resistor 2Mohm track in PCboard was damaged.after check PCboard in my megaworks thx 550 i found that tracks are quite well and voltage sense resistor is well too.

Step 2:

REPAIRING PROCEDUREin below items there are repairing procedures that i did with my THX550.to access to BCboards it is required to remove electronic boards from woofer case.1- remove cover of woofer.2- remove woofer speaker from case by cutting and marking connected wires. 3- remove all Philips screws around cover and remove electronic parts smoothly, care about glues around power cord.4- remove and disconnect power supply board from other parts.5- replaced switcher TOP234Y and capacitors C102, C206, C205 and D10 as below photos.6 check all of related tracks in repairing area.7- now it is time to re assemble electronic parts very carefully and prepare for test. it is better to use isolated transformer and put a lamp in serial to protect PCboard against short circuit. if green LED (POWER LED) is on it means that every thing is O.K.8- in this step all of electronic parts should return back to case and reconnect sub woofer connections.

Step 3:

after replacing damaged parts my THX 550 is working well maybe for next 10 years.i hope above mentioned instruction can be useful and helpful.

ok, so far, you said you checked the power cables and switch and they seem ok. But i have run into a simliar problems with some equipment i use. Sometimes a plug may go out of a strip, but not take out the entire strip( have that problem with a power strip right now actually, in the process of fixing that)

Also, im not sure what kind of Cabinet you have, so i dont know what to really suggest other than to find either the model of your cabinet and pull up the building spec's on it, if it comes with its own cabinet or contact the manufacturer.
Without having either a picture or name and product number. I dont feel i can really help otherwise with the problem.

Please be more detailed. I would be glad to help all i can, but more details will be required

Yes, there are many cables availabe in the elcetronic market that you caqn upgrade to a latest one. please not down the model number of the creative and visit a elctronic shop. hope this help, thanks for using fixya!

@bronk50 He said "No power up"... Useless reply !
I too have a Megaworks system and sometime after it has lost current for an extended period, it won't power up... but it does magically after some minutes. I don't remember exacty what I did last time it did start up, but it eventually got on !! My advice:
Let the sub plugged to the wall. Put the rear switch to OFF then wait 30 minutes. If it does not start up after that, let the switch ON and cycle ON/OFF after another 30 minutes.
Hope this helps! This system is underestimated... The subwooofer is so musical. Great bass comes from this system. Another hint: Keep your bass volume at 2 bars, I found it to be the sweet spot before it goes boomy :-)

I was able to repair my system using the guidelines from pouakai at this forum.

My system also would not turn on. The problem was on the power PCB - the one with the two large heat sinks attached. I found that the piece of PCB track joining the 2M ohm resistor (connected to the LINE-SENSE pin of the TOP243Y switcher) to the positive output of the full-wave bridge rectifier, was broken. This could have been caused by corrosion from the glue (which covered that section of track). I also replaced the 2M (0,5W) ohm resistor, just incase it was also to blame. The 2M ohm resistor is located under one of the two black heatsinks. I used a short piece of wire to replace the PCB track (from the large filter capacitor next to the resistor) to the 2M ohm resistor. Plugged everything back in, and it worked!

The circuit diagram given on page 21 of the TOP234Y's data sheet was very useful, and helped me understand how the circuit functioned.

I hope this is heplful for others who have this "no power" problem!

The popping sound might have been caused by an electronic component (capacitor) inside which blew. If it's still under warranty I would bring it back to the shop.

I was able to repair my sytem using the guidelines from pouakai at (http://forums.creative.com/t5/Speaker-Systems/Successful-repair-of-MegaWorks-THX550-power-supply/m-p...

My system also would not turn on. The problem was on the power PCB - the one with the two large heat sinks attached. I found that the piece of PCB track joining the 2M ohm resistor (connected to the LINE-SENSE pin of the TOP243Y switcher) to the positive output of the full-wave bridge rectifier, was broken. This could have been caused by corrosion from the glue (which covered that section of track). I also replaced the 2M (0,5W) ohm resistor, just incase it was also to blame. The 2M ohm resistor is located under one of the two black heatsinks. I used a short piece of wire to replace the PCB track (from the large filter capacitor next to the resistor) to the 2M ohm resistor. Plugged everything back in, and it worked!

The circuit diagram given on page 21 of the TOP234Y's data sheet was very useful, and helped me understand how the circuit functioned.

I hope this is heplful for others who have this "no power" problem!

Establishing computer speakers includes networking to the devices from where media from be derived either as computers stereos of media players. First, the speakers require connection established between each component sound producing device that has an impression in generation capacity. Second, the speaker device have a box usually the woofer as central area with power cuicuit features. Connectable cables are power cuicuit related expected to extend from the woofer to the power outlet. Also, the woofer board would require as last connectivity, the cable attacchment to the devices that produce sound either as stereo music medis players, digital media displayers among mentionable media devices.

check here

I got the same problem yesterday. I just unplugged the power from the subwoofer, then plugged today. Now the lights stayed a little longer then yesterday, but goes out again a little later. So I just unplugged and wait ultil tomorrow then I'll try again.