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MIL-T-81527B(AS)
(a) +3. 2 + O.06 Vdc (increasing from O)
(b) +3. 8 + O, -0.19 Vdc (increasing from O)
(c) +2.7 + 0.05, -0 Vdc (decreasing toward O)
A +28 Vdc signal shall be present at
28 Vdc Delayed.
3.4.1.6.3.3.6.6.4
this output when the PD ILL switch is ON.
28 Vdc Hold. When the MNL TEST PRGM switch reaches
3.4.1.6.3.3.6.6.5
the appropriate step in the test sequence, +28 Vdc shall be applied at this
output. A latching circuit shall be provided which will keep the signal
on for subsequent steps until the 28 Vdc RESET switch is momentarily
depressed.
The Test Panel shall provide for monitoring
3.4. 1.6.3.3.6.7 Test Inputs.
the following inputs coming back from the Tuning Drives in response to the
switching and outputs described in 3.4.1.6.3.3.6.3 thru 3.4.1.6.3.3.6.6
The Test Panel shall verify that the
3.4.1.6.3.3.6.7, 1 Roll Channels.
Right Roll command is +18.8 Vdc + 1O percent and that the Left Roll command
is -18. 8 Vdc + 1O percent when checking four-channel tuners.
Provisions shall be made for indicating which
3.4.1.6.3.3.6.7.2 Tuning.
of the following five conditions exists on each of the tuning inputs.
(a) TUNE-UP: +28 Vdc
(b) TUNE-UP with Recycle: +28 Vdc through 180 ohms
(c) TUNE-DOWN: ground
(d) TUNE-DOWN with Recycle: ground through 180 ohms
(e) Open Circuit
Provisions shall be made for checking all the
3.4. 1.6.3.3.6.7.3 Grounds.
separate ground circuits for the single - and four -channel tuners.
Presence/absence of the +28 Vdc
3.4.1.6.3.3.6.7.4 Firing Interlocks.
Firing Interlock voltage shall be monitored for the selected missile channel.
The J7, J8, and J9 connectors shall be part of
3.4.1.6.3.3.6.8 Cable.
This cable shall enable any of the four
cables wired directly to the test panel.
39

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