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Marantz SR1100L Service Manual page 4

Stereophonic receiver

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I N T R O D U C T I O N
T h i s s e r v i c e m a n u a l w a s p r e p a r e d f o r u s e b y A u t h o r i z e d
W a r r a n t y S t a t i o n s a n d c o n t a i n s s e r v i c e i n f o r m a t i o n f o r
l M a r a n t z l v l o d e l S F 1 1 0 0 L S t e r e o p h o n i c R e c e i v e r .
S e r v i c i n g i n f o r m a t i o n a n d v o l t a g e d a t a i n c l u d e d i n t h i s
m a n u a l a r e i n t e n d e d f o r u s e b y t h e k n o w l e d g e a b l e a n d e x
p e r i e n c e d t e c h n i c i a n o n l y - A l l i n s t r u c t i o n s s h o u l d b e r e a d
carefully. No atternpt should be made to proceed without
a g o o d u n d e r s t a n d i n g o f t h e o p e r a t i o n o f t h e r e c e i v e r .
T h e p a r t s l i s t { u r n i s h e s i n f o r m a t i o n b y w h i c h r e p l a c e m e n t
parts may be ordered Jrom the N4aranlz Company. A simple
d e s c r i p t i o n i s i n c l u d e d f o r p a r t s w h i c h c a n u s u a l l y b e o b '
t a i n e d t h r o u g h l o c a l s u P P l i e r s
2 . T E S T E O U I P M E N T R E O U I R E D F O R S E R V I C I N G
Item
Manufacturer and Model No.
Alvl Signal Generator
't. P.w. BoABDS
A s c a n b e s e e n f r o m t h e c i r c u i t d i a g r a m t h e c h a s s i s o f
l 4 o d e l S R 1 1 0 0 L c o n s ] s t s o f t h e f o l l o w i n g u n i t s . E a c h u n i t
m o u n t e d o n a p r i n t e d c i r c u i t b o a r d i s d e s c r i b e d w i t h i n t h e
square enclosed by a bold dotted line on the circuit dia-
g r a m .
1 . T u n e r .
. -
m o u n t e d o n P - W . B o a r d P 1 0 0
2 . M a i n A m p / P o w e r S u p p l y
. m o u n t e d o n P . W . B o a r d P 7 0 0
3 . V o l u m e / B a l a n c e P u s h S w i t c h
mounted on P.W. Board PS00
4 . S p e a k e r T e r m i n a l . . . .
m o u n t e d o n P . W . B a o r d P T 0 0
5 . T u n i n g L E D . . . . . . .
m o u n t e d o n P . W . B o a r d P X 0 0
6 . A n t e n n a C o i l
m o u n t e d o n P . W . B o a r d P B 0 0
7 . P o w e r S w i t c h
m o u n t e d o n P . W . B o a r d P U 0 0
Use
S i g n a l s o u r c e f o r A M a l i g n m e n t
Test Loop
U s e w l t h A M S i g n a l G e n e r a t o r
F I M S i g n a l G e n e r a t o r
Sound Technology
S i g n a l s o u r c e f o r F M a l i g n m e n t
M P X O s c i l l a t o r a d j L r s t m e n t ( V C O )
T r o u b l e s h o o t i n g
V o l t a g e m e a s u r e m e n t s
( D C )
lvlonitors primary power to amplif ier
S t e r e o s e p a r a t i o n a l i g n m e n t a n d t r o L r b l e
s h o o t r n g
D i s t o r t i o n m e a s u r e m e n t s
Sinewave and squarewave signaJ sourc-"
V o l t a g e m e a s u r e m e n t s l A C )
W a v e f o r m a n a l y s i s a n d t r o u b l e s h o o t i n g a n d
A S O a l i g n m e n t
O s c i l l o s c o p e
FrequencY Cou nter
F l u k e M o d e l 1 9 0 0 4
F l u k p l \ , 4 o d e l 8 0 0 0 " D i g . t a l " S i m p s o n
f \ 4 o d e l 3 1 3 , T r i p l e t M o d e l 8 0 1
S i m p s o n M o d e l 1 3 7 9
C o m m e r c i a l G r a d e ( 1 - 1 0 A )
S i m p s o n M o d e l 1 3 5 9
T e k t r o n i x M o d e l T 9 3 2
Philips l,.4odel 3232
S u p e r i o r E l e c t r o n i c C o . ,
C i r c u i t T e s t e r
D C V T V M
AC Wattmeter
O u t p u t L o a d
r 0 . 5 % , 1 0 0 w )
AC Ammeter
L i n e V o l t m e t e r
Variable Autotransformer
S h o r t i n g P l u g
P o w e r s t a t l \ 4 o d e l 1 1 6 8 - 1 0 A
l M o n i t o r s a m p l i f i e r o u t p u t u n d e r s h o r t c r r c u t
c o n d i t i o n
M o n i t o r s p o t e n t i a l o f p r i m a r y p o w e r t o
a m p l i f i e r
U s e p h o n o p l u g w i t h 6 0 0 - o h m
a c r o s s c e n t e r p i n a n d s h e l l
C o m m e r c i a l G r a d e
S h o r t s a m p l i f i e r i n p u t t o e l i m i n a t e n o r s e
p rcKLr p
A d j u s t s ' e v e l o t p r m a r y p o w e r t o d m p i f e r
P r o v i d e s 8 - o h m l o a d J o r a m p l i f i e r o u t p u t
t e r m r n a r r o n
T h i s t a b l e l i s t s t h e t e s t e q u i p m e n t r e q u i r e d f o r s e r v i c i n g t h e N 4 o d e l S R 1 1 0 0 L R e c e i v e r '
C o m m e r c i a l G r a d e
O u t p u t L o a d
1 0 . 5 % , 1 0 0 w )
P r o v i d e s 4 o h m o a d f o r a m p l i f i e r o u t p u t
r e r m t n a ( t o n

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