Sequerra 1 Owner's Manual - page 11
D E S C R I P T I O N O F B A C K J A C K P A N E L
The back Jack Panel has f o u r inputs, five o u t p u t s , an accessory socket, scope and pan adjust
ments, a D o l b y converter, a fuse, the line c o r d , and the serial n u m b e r . F o l l o w i n g is a description o f
their proper use.
Fuse — For U.S.A. a l - a m p , s l o w - b l o w , standard 3 A G cartridge t y p e fuse is used. For non-
domestic use, the proper fuse f o r the c o u n t r y o f use has been installed.
Power Line Cord - Plug o n l y i n t o A C o u t l e t . In U.S.A. 1 1 5 V A C 50-60 Hz. Proper o p e r a t i o n
w i l l be had f r o m 1 0 5 - 1 3 5 V . European tuners are adjusted for 2 2 0 V A C . 5 0 Hz (refer to E x p o r t
U n i t s in Installation Instructions section).
When taking the tuner f r o m o n e c o u n t r y t o another, take it o n l y t o an authorized dealer in the
c o u n t r y o f use for proper conversion. Servicing b y user or u n a u t h o r i z e d personnel w i l l v o i d war
r a n t y
Output Fixed - Use this o u t p u t t o plug i n t o stereo p r e a m p l i f i e r . Delivers 1 volt RMS for
100% m o d u l a t i o n f r o m an internal impedance of 6 0 0 o h m s i n t o an open c i r c u i t or high impedance
load. Can deliver % v o l t i n t o 6 0 0 o h m external load. Can D r i v e as m u c h as 100 feet o f 3 3 picofarad
cable on each o u t p u t leg w i t h o u t causing any degeneration of signal.
Output Level — This o u t p u t consists o f a 5 , 0 0 0 o h m p o t connected across the o u t p u t o f the
Fixed O u t p u t . It has a varying internal impedance that c a n n o t exceed 2 8 0 0 ohms. It can be used to
drive short standard cables i n t o high impedance inputs.
External Vector Input — I n p u t f o r four-channel signal source f o r scope display t h r o u g h the
tuner's four-channel m a t r i x c i r c u i t . Depress the D i s p l a y : E x t e r n a l V e c t o r p u s h b u t t o n . A l s o may be
used to m o n i t o r external stereo sources. Use F r o n t , L & R inputs.
Scope - A l l Sequerra tuners are p r o p e r l y adjusted before leaving the f a c t o r y . If for any reason
the scope's trace needs adjusting, f o l l o w the proper procedure:
1. Remove all inputs.
2. W i t h small screw driver set the Scope Intensity a d j u s t m e n t t o f u l l counterclockwise
p o s i t i o n .
3. Set scope's Focus, V e r t i c a l , a n d H o r i z o n t a l a d j u s t m e n t s t o center position.
4 S w i t c h power o n . A l l o w a m i n i m u m o f 1 m i n u t e f o r tube t o c o m p l e t e l y w a r m up. It is
b e t t e r t o w a i l 15 minutes to a l l o w the tuner t o stabilize a t f u l l operating temperature,
thus avoiding any possible d r i f t effect.
5. Depress the D i s p l a y : E x t e r n a l V e c t o r p u s h b u t t o n .
5 1 7 4
B