Mc INTOSH hfe mcintosh ma6100 service bulletin 1 free download

File name hfe_mcintosh_ma6100_service_bulletin_1.pdf

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