Mesa/Boogie OOGIEBMESA Manuale Utente

Use this toggle to select one of the three Modes - RHYTHM, LEAD or CONTOUR. This 
toggle can also take the place of the remote footswitch when there isn’t one handy.

Perfect for set breaks...this toggle switch also serves an even more important purpose.  In the STANDBY 

position the tubes are at idle so that during power up they may warm up before being put 
to use.  Before the Power is switched on, make sure the STANDBY switch is in the 
STANDBY position.  Wait at least 30 seconds and then switch the STANDBY to the 
"ON" position.  This helps in preventing tube problems and increases their toneful life 
substantially.

This is the A.C.’s ( Alternating Current ) main fuse and provides protection from outside A.C. fluctuations, as well as 
power tube failure damage.  Should the fuse blow, replace it with the same rating in a slo-blo type package.  The 
domestic U.S. version requires a 1 amp slo-blo fuse.  A power tube short or failure is often the cause of a blown 
fuse...Follow the cold start procedure mentioned in the ON / STANDBY switch section and watch the  power 
tubes as you turn the STANDBY to the ON position.  If a power tube is going bad or is arcing you will see it!  Turn the 

STANDBY Switch to STANDBY immediately and replace the faulty power tube and the fuse if necessary.  If you see nothing 
abnormal as you lift the STANDBY, it is possible that a power tube shorted temporarily and blew the fuse.  If this is the case it may 
work again normally.  To be extra safe you may want to replace all power tubes in the "shotgun" troubleshooting tradition and save 
the replaced set as spares. Don’t forget to carry along a few extra fuses to your gigs, they could be worth their weight in 

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This switch delivers the A.C. power to the 

SUBWAY ROCKET.   Make sure the unit is grounded (all three 

terminals of the A.C. power cord must be connected whenever possible to avoid injury to 
the user as well as to the unit) and that the proper voltage is present.  Follow the cold start 
procedure described in the ON / STANDBY section above when powering up your 
ROCKET.