Bell System Practices 1634 Service Manual page 13

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1SS 1, SECTION 502-611-402
H
D IK TF B- IR
TRMTR
a
ON KEY ,
AND MUTE
SWITCH 1
ONLAMp-F
VOLUME
CONTROL
OFF
KEY
TO FIG
I
AI*'
[o-v}
TI %
(Y-B')
RI * (BL-Y}
'G * (o-Y)
LK *
(Y -0)
Ill * (Y-G)
I
N
PMA
Ic
—
—
—
—
—
—
—
-m/k
I
I
CONN
'
I
I
< 13
r"
I
I
I
1<
14
~~
I
I
<
I
I <
I
I
I
I
I
I
1<
I
I
I
I
1<
15
40
16
41
17
42
37
I I
IT *
(G-Yl I
*
LEAOS ARE SPA OETIPPEO AND OF SUFFICIENT LENGTH TO
REACH NETWORK OR OIAL TERMINAL WHEN SPEAKERPHONE
MOOULE IS IN THE FIFTH KEY POSITION.
Fig. 4-667B Transmitter
TO FIG.
2 OR
FIG. 3
Page 13