Mesa/Boogie Dual Rectifier Blue Angel Owner's Manual page 9

TOGGLE SWITCHES
ON / STANDBY:
toneful life substantially.
ON ON
STANDBY POWER
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
POWER:
ON
ON
POWER
STANDBY
REAR PANEL:
FUSE
2A SB
A OFF B
GROUND
A.C. fluctuations, as well as power tube failure damage. Should the FUSE blow, replace it with the samerating in a slo-
blo type package. The domestic U.S. version requires a 2 amp slo-blo FUSE A power tube short or failure is often
FUSE:
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 switch to the ON position. If a power tube is going bad or is arcing
you will see it! Flip 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 switch, it is possible that a power tube shorted
FUSE
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.
2A SB
NOTE: Like tires on a car, spare tubes are always a measure of good insurance. Your BLUE ANGEL was carefully
constructed with reliability in mind! Given the proper care and maintenance, it will deliver years of trouble free service.
Spare tubes and fuses are a must for the fabled cord bag and may someday be worth their weight in gold.
This switch reverses the polarity of the A.C. GROUND It can be helpful in eliminating annoying hum or A.C. buzz as well as those
painful microphone shocks. It should be left in the center "OFF" position when neither of these problems are
GROUND: occuring.
FUSE
2A SB A OFF B
GROUND
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
Power is switched on make sure the STANDBY switch is in the STANDBY position. Wait at least 30
seconds and then flip the STANDBY to the "ON" position. This prevents tube problems and increases their
This switch delivers the A.C. POWER to the BLUE ANGEL. Make sure the unit is grounded (all three
section above when powering up your BLUE ANGEL.
This is the A.C.'s (Alternating Current) main FUSE and provides electrical current protection from outside
RETURN
REVERB
FOOTSWITCH
This 1/4" jack allows you control of the REVERB remotely when a cable and Mesa Footswitch are con-
nected. The REVERB FOOTSWITCH is an option and can be ordered by calling us direct or by contacting
M B
ESA
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