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MA 6100
S.B. No. 2
SERVICE BULLETIN
M O D I F I C A T I O N OF I N S T A L L A T I O N PROCEDURE
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 prevent front panel 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 press a g a i n s t the back of the panel
c a u s i n g g l a s s to break.
WHAT U N I T S ARE AFFECTED: S e r i a l No. 7026 To 7439 Export
S e r i a l No. AE1001 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 MADE: 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
PROCEDURE:
1. For custom i n s t a l l a t i o n - Follow the n o r m a l mounting
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 mentioned
above rather than the 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 Cabinet I n s t a l l a t i o n - Follow 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 rather than the
f i l l i s t e r head screws that a r e enclosed w i t h each
L 12 c a b i n e t .
Fillister F l a t Head
Head
038-682
BE042003
Mclntosh Laboratory Incorporated 2 Chambers Street Binghamton, New Y o r k 13903 Phone: Area Code 607-723-3512