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/ N E
C H E L S E A
2 - 1 8 0 0
R A D I O
TO ALL EMERSON DISTRIBUTORS:
In order to keep you advised of circuit changes in Emerson Television
Receivers, a simple code identifying system has been put into effect.
A triangle with a number inside it will be inked on the rear wall of
the chassis next to the AC power input.
Each time any change is made in production, the number within the
triangle will change and, automatically, a field service bulletin will
be issued to you so that you may keep up to date on all such circuit
changes.
It is also important that you keep a record of these changes and file
them properly for future reference.
This bulletin is the first in this new series and pertains to the Model
637 chassis model 110.
following revisions incorporated:
Circuit Revisions to Correct Picture FLICKER or BOUNCE
Remove red lead from the B plus 125 volt point on terminal strip
1 .
near Uth I.F. and from Pin #6 of the 6AU6 (V-5)»
.
Remove red lead from the
2
of the 6AU6 (V-5).
Insert a wire between the B plus 12$ volt point and the
3.
of the C-U2 above.
Remove the U7,000 ohm resistor (R-28) from Pin #6AU6 (V-5) then wire it
U.
to the B plus 125 point on terminal strip near the Uth I.F.
Remove the 33,000 ohm resistor (R-27) from the B plus 125 volt point
5.
on terminal strip near V-12 and V-13 and from the junction of the blue
lead
.
6
Wire the 33,000 ohm resistor (R-27) between Pin 6 of 6AU6 (V-5) and the
empty lug on terminal strip near the power transformer.
A G R E E M E N T S A N D S A L E S S U B J E C T T O S T R I K E S .
C A B L E
A D D R E S S .
E M P H O N O C O
' E merson
A N D
P H O N O G R A P H
111 EIGHTH AVENUE
%
Chassis bearing the code Triangle 1 have the
C-21 on terminal strip near 7-6 and V-15.
Scanned by mbear2k - Jan 20121/17
N E W
Y O R K
C O R P O R A T I O N
| NEW YORK CITY, 11
September 13, 19U9
terminal of C-U2 and from Pin #6
A C C I D E N T S O R O T H E R C A U S E S B E Y O N D O U R C O N T R O L
C O D E S
B E N T L E Y S
A B C
5 T H
terminal
Add a wire from
" E D I T I O N
I M P
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