Texas Instruments 990 Manual page 55

FROM VDT
CON-
TROLLER
J2-7
-=
J2-s
BET2T
I
I
BETIT
I
R43
I
L
":'" +5 VDC
(B)
136279A
-- -- --
-- -- --
I
I
I
I
+5 voe
R33
I
SN751 15
,_J
---- -- --- --
--
R32
+
R41
Figure 1-29. Model 911 VDT Power/Logic PWB Audio Circuitry
R34
R35
-= -=
C13
Js-2
(AUDIO ) TO
LOUD-
SPEAKER