Mackie 402VLZ4 [18/24] Appendix a service information
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Mackie 402VLZ4 [18/24] Appendix a service information

Mackie 402VLZ4 [18/24] Appendix a service information
18
402VLZ4
402VLZ4
Appendix A: Service Information
Ifyouthinkyour402VLZ4hasa
problem,pleasecheckoutthefollowing
troubleshootingtipsanddoyourbestto
conrmtheproblem.Visitthesupport
sectionofourwebsite(www.720trees.com)
whereyouwillndlotsofusefulinformation
suchasFAQs,andotherdocumentation.You
mayndtheanswertotheproblemwithout
havingtosendyourmixeraway.
Troubleshooting
Bad Channel
• Isthegainsetcorrectly?
• Isthelevelknobturnedup?
• Istheinstrumentswitchsetcorrectly?
(Channels1–2only).
• Trythesamesourcesignalinanother
channel,setupexactlylikethe
suspectchannel.
• Checkthatthestereopanswitchis
setcorrectly.
• ChecktheEQandthelow-cutswitch.
Bad Output
• Istheassociatedlevelknob(ifany)
turnedup?
• Ifit’saleftmainout,tryunplugging
theRCAlefttapeoutput.Ifthe
problemgoesaway,itsnotthemixer.
• Ifaleftspeakerispresumeddead,
switchtheleftandrightcords,atthe
mixer'smainouts.Iftheleftspeaker
isstillnotworking,it’snotthemixer.
Noise
• Turnthechannellevelknobsdown,
onebyone.Ifthesounddisappears,
it’seitherthatchannelorwhatever
ispluggedintoit,sounplugwhatever
thatis.Ifthenoisedisappears,it’s
fromyourwhatever.
Power
• ThepowerLEDonthemixershould
comeonwhenthepowerswitchison.
Checkthatthepowerconnectionto
themixerispluggedin.
Repair
Forwarrantyservice,refertothewarranty
informationonpage23.
Non-warrantyserviceisavailable
atafactory-authorizedservicecenter.
Tolocatethenearestservicecenter,visit
www.720trees.com,click“ContactTech
Support”andselect“LocateaServiceCenter
orDistributor”[3].Servicefora402VLZ4
livingoutsidetheUnitedStatesmaybeob-
tainedthroughlocaldealersordistributors.
Ifyoudonothaveaccesstoourwebsite,
youcancallourTechSupportdepartment
at1-800-898-3211,Monday-Fridayduring
normalbusinesshours,PacicTime,
toexplaintheproblem.TechSupportwill
tellyouwherethenearestfactory-authorized
servicecenterislocatedinyourarea.
Need help with your mixer?
•
Visit www
.720trees.com and click 'Contact Tech Support' to find: FAQs, manuals,
addendums, and other documents.
•
Email us a
t: techmail@loudtechinc.com.
•
T
elephone 1-800-898-3211 to speak with one of our splendid technical support
representatives (Monday-Friday, during normal business hours, Pacific Time).

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