Description Of Change - MCi JH-400B Series Technical Manual

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SERVICE BULLETIN
BULLETIN N0._4_0_9 _ _ _
DATE
10-2-78
I/O Module
No.
4300-0241-oo
-------------------------
P.C. BD.
ECO No.
758
IN NEW PRODUCTION ON SERIAL
No.
123
THIS IS AN
OPTIONAL
CHANGE
REASON FOR CHANGE:
To reduce switching noise in MID EQUALIZER
DESCRIPTION OF CHANGE:
On SW4 of the MID EQ circuit, add a lOOK resistor from the
wiper (Yellow) to the hi end (Red) of the switch.
COMPONENT REQUIREMENT:
{1) lOOK
~w
5% resistor.
!..UOIO 1NDUSTRIES CORP.
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OCT 2 0 ·1978
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