Are you running a sub, daisy chained to it? are they connected to each, just have one, two, four? are you hooked up like in the pic? What Function Does Mouse Pad Carry Out AmanStino
Are you running a sub, daisy chained to it? are they connected to each, just have one, two, four? are you hooked up like in the pic?
SOURCE: mackie srm450 the tops on one speaker is not working
Hi There, This is quite a common problem with the Mackie SRM450's. You will find that you need to replace the diaphram on the top. This can be done by removing the 16 screws from the back of the Mackie (quite a long pain in the **** job) with a long handled cross head screw driver.
Once you have done this you should then remove the hex bolts from the back of the drive where the black and right terminals are. When this is done, pull off the cover and swap the diaphram out. With the new diaphram in place reverse the steps above but before you screw the back on, power it up carefully and check the sound is now working.
If the diaphram keeps going eg every 3 to 4 months then you will need to change the driver which is quite expensive to do. If you need spares and are based in the UK, contact LondonSpeakerShop.com who carry spare parts or can undertake the repair.
Hope this helps.
SOURCE: Mackie SRM450 won't power on.
I have the same issue... it somehow appears that no power is present at Q34 / Q35 on the schematic but I dont know how to trouble shoot it!
SOURCE: what kind of tool is needed to open mackie srm450
12" phillips screw driver total of 16 or 17 screws on back, then open like a **** its easy!
SOURCE: When turned on: srm450 has no sound, but all leds
1 TAKE THE MAINS PLUG OUT
2 Unscrew the fixing screws on the back. (just the outside ones)
3 Take the back off and turn the amplifier circuit board to face you.
4 About 2" from the left and about 4" from the bottom you will see a sort of tab. pull it off gently and widen the 2 prongs slightly.
5 Put the jumper tab back on and re fit the amp.
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