Tandy 1400LT Service Manual page 185

BEEP, (SP, EL, FDC) Power Control
DTC114ES
(15)
R47
IOOK
SP ON
DTC
E-l'12
1 14ES DTBl14ES
IS2473 100K
* * *
C58 e59
IOU 0.lu
SP+V
EL LIGHT
(15)
R48 C64 SPEAKER CONNECTOR
10K
lu
II
1 -
(I7) AUDIO
BEEP 1K
t SP+V
7
1
1
C65
T
0 . 0 4 7 ~
IC39
C68 R57
16K -
I , ,
R55,
,:'
-
(I5) BEEP 0
T II
-
27k
BEEP
(15) FD
I
R 5 1
2
B
*
U 0
D10
IS2473 100K
T
O.IU
*
*
EL LIGHT POWER
FDC POWER
IC39
C58 68
R46
. .
57
TR12 1 7
L2
. . ,
3
D8, 10
[ NOTE : + V
=
12
-
3 0 V ]
NO. 10
7-10