Only half the volume on the left channel of the mixer. Why? :(

electronic & computer repair& servicre

• 12061 Answers
• Posted on Nov 30, 2010

SOURCE: Hello, I was working at

cachepe.samedaymusic.com/.../gl2400ug_ap5597_2-42fad5e2de1bc79db38576be174464d4.pdf - United States
Above is your user manual below is a service and repair manual.
http://www.performanceaudio.com/cgi/product_view.cgi?products_id=16696

Indeed i would suspect something around your Final Output semiconductors, and any associated resistors?
You really must obtain a service manual, here there are the troubleshooting steps required to isolate and hopefully allow repair of your unit.
Look for any discolored components etc, check if any are overly hot... use a temperature probe on suspected components. Freeze spray may also be useful in diagnosis.
Use your eyes & nose to isolate the bad burnt overheated components, I sometimes use a straw up a nostril and selectively go over suspect parts, and "Sniff" to try and detect the overheated smell... it works.
http://www.allen-heath.co.uk/uk/TechnicalSupport.asp
Above is your tech support link, contact them for any info you require.

SOURCE: I have an allen and

Usually the connector that is board mounted is the problem. I would OPEN the unit as there may just be broken solder at the connector inside. If the connector requires replacement, find one at Digikey.com by searching for "power connector coaxial".

Hint: In the future install one of those little lamp switches that are in a little plastic box with knurled knob sticking out the sides. ONLY break ONE wire from the adapter to avoid getting the connections reversed. Since the wires are smaller than lamp cord, tack solder the wires to the piercing points of the switch .

SOURCE: Hi there. When I power

Make sure ALL interconnected equipment is powered by the same receptacle or power conditioner. Do NOT use separate recptacles at opposite ends of a romm for example. Run power extension back with your snake. There may be a failure in the unit. Since it is so new, exercise your warranty... do NOT risk voiding the warranty. Do verify that your power is clean.

SOURCE: I would like to buy

Cases are being sold on Ebay, new, from several sources, and if you can't find one specifically listed for your unit, contact the sellers as they custom build them. That is a big unit... expect to pay around $150 to $200 for an ATA type case for it.

Here is an example for a Heath/Allen 420. http://cgi.ebay.com/ATA-CASE-ALLEN-HEATH-ZED-420-ZED-420-ZED420-MIXER-/400127078772?pt=LH_DefaultDomain_0&hash=item5d296eb174

I have bought from them before myself and there are others on Ebay so shop around... You can contact the companies and ask for a specific one and DO compare the size to your unit that they specify as all the companies do not accept returns...