Service Manuals, User Guides, Schematic Diagrams or docs for : . Rare and Ancient Equipment Mc INTOSH Audio MA6100 hfe_mcintosh_ma6100_service_bulletin_1
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MA 6100
S.B. No. 1
SERVICE BULLETIN
WIRING CHANGE
MODEL: MA 6100 Preamp-Amplifier
PURPOSE O F M O D I F I C A T I O N : T o c o r r e c t w i r i n g error i n compensation
and tone c o n t r o l s .
WHAT U N I T S A R E A F F E C T E D : Serial No. A E 1 0 0 1 to AE1184
WHEN M O D I F I C A T I O N SHOULD B E M A D E : Any t i m e any other s e r v i c e
i s performed.
M c l N T O S H M O D I F I C A T I O N K I T NO.: None
PARTS R E Q U I R E D : None
PROCEDURE: (Refer to the d i a g r a m on reverse s i d e )
Step 1 Remove d u s t cover, knobs & front p a n e l .
Step 2 I n t e r c h a n g e the orange and o r a n g e / w h i t e
w i r e s connected to the tone c o n t r o l PC Board.
Step 3 I n t e r c h a n g e the brown and b r o w n / w h i t e
w i r e s connected to the tone c o n t r o l PC Board.
Step 4 Remove 4 screws from upper s e c t i o n of sub
p a n e l and i n t e r c h a n g e t h e green and g r e e n / w h i t e
w i r e s connected to the v o l u m e c o n t r o l (R21O).
Step 5 R e p l a c e upper s e c t i o n of sub p a n e l m a k i n g sure
to use t h e hex head screws in the top holes
and the pan head screws in the lower holes .
Rep l a c e f r o n t p a n e l , knobs and d u s t cover.
BE042003
Mclntosh Laboratory Incorporated 2 Chambers Street Binghamton, New York 13903 Phone: Area Code 607-723-3512
TOP VIEW
DUST COVER REMOVED
ORANGE TONE C O N T R O L PC B O A R D
STEP 2
ORANGE-WHITE
BROWN-WHITE
STEP 3
BROWN
UPPER SUB PANEL
VOLUME
CONTROL
R2IO
FRONT OF UNIT
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