IBM 727 Manual Of Instruction page 132

A HD4 Vac. M otor
B R-4 Arm Switch
C Bellows Switch
D R -l Run
E H D 1 ,H D 2 , & H D 3
F Head Down Micro Sw.
G T . l . & L .P . Lights
H R-7 Photo Cell
I DP2 Capstan Motors
J R— 17 Power On Reset
K Capstan Out Sws. L .& R .
L R-27 Go Status
M +48 Volts to Man. Start
N R-25 Load Point
P R-26 Load Point Trip
Q +48 Volts to Man. Rev.
R R— 21 Rwnd. P .U .
S R-3 Load Rwnd. 1
T R-9 Load Rwnd. 2
U R - l 2 Rwnd. Status
C .E . Switch set to Fwrd.—
Tape Drives Forward
C .E . Switch set to Stop------1
F IG U R E 3 6 .
N
| «-------------------- n
>
C .E . Switch set to Bkwrd-
Tape Drives Backward }« • -------- »
C .E . Switch set Stop----
Load Rew. Depressed
Load Rew. Released------
M A N U A L C O N T R O L O F TA PE M O T IO N , 727 M O D E L III
T
L
R
i
Tape Drives Bkwrd r --------------
At Load Point-
Stops
U
L