SERVICE BULLETIN
MA
6100
S.B. No.
2
M O D I F I C A T I O N O F I N S T A L L A T I O N P R O C E D U R E
MODEL: MA 6100 P r e a m p - A m p 1 i f i e r
PURPOSE OF M O D I F I C A T I O N : To p r e v e n t front p a n e l g l a s s from
b r e a k i n g when u n i t i s i n s t a l l e d . Screws s h i p p e d w i t h
the u n i t can p r e s s a g a i n s t the back of the p a n e l
c a u s i n g g l a s s t o break.
WHAT U N I T S ARE A F F E C T E D : S e r i a l No. 7026 To 7439 Export
S e r i a l No. A E 1 0 0 1 To A E 1 1 3 7 Domestic
Other u n i t s o u t s i d e of t h i s s e r i a l no. group are not
affected.
WHEN M O D I F I C A T I O N SHOULD B E M A D E : When u n i t s are b e i n g
i n s t a l l e d e i t h e r i n the customers custom i n s t a l l a t i o n
or our L 12 e q u i p m e n t c a b i n e t .
PARTS R E Q U I R E D ;
4 #6-32 x 3/4 F l a t Head M a c h i n e Screws
or 4 #6-32 x 1 - 1 / 4 F l a t Head M a c h i n e Screws
P R O C E D U R E :
1 . For custom i n s t a l l a t i o n - Follow the n o r m a l m o u n t i n g
i n s t r u c t i o n s u s i n g the f l a t h e a d screws m e n t i o n e d
above r a t h e r t h a n t h e f i l l i s t e r head screws that
were s h i p p e d w i t h u n i t .
2. L 12 C a b i n e t I n s t a l l a t i o n - F o l l o w the normal m o u n t i n g
i n s t r u c t i o n s u s i n g the 6-32 x 3/4 f l a t head
m a c h i n e screws m e n t i o n e d above r a t h e r than the
f i l l i s t e r head screws t h a t a r e e n c l o s e d w i t h each
L 1 2 c a b i n e t .
038-682
BE042003
Mclntosh Laboratory Incorporated
F i l l i s t e r
Head
F l a t Head
2 Chambers Street
Binghamton, New Y o r k 13903
Phone: Area Code 6 0 7 - 7 2 3 - 3 5 1 2
