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Common connector contact continuity |
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|  MIL-C-70490(AR)
4.6.6 EPROM erasure. The EPROM shall be erased by exposing
the transparent window to high intensity ultraviolet light. A
light source with a wavelength of 2537 Angstroms yielding a
minimum integrated dosage of 15 w-sec/cm(2) is required. An
ultraviolet `light source with a power of 12,O00 microwatts/cm(2)
placed within 1 inch of the window will erase the EPROM in 20
m i n u t e s . The EPROM shall be erased when requirement 3.2.1.4 is
met.
4.6.7 RAM standby circuitry. Connect a 5 volt variable DC
power supply to P1-B22 (BAT+5V) with respect to GND. Then
disconnect P1-A1 (+5V) from the 5 volt power supply. slowly
decrease the voltage of the variable power supply while at the
same time monitoring with a DC voltmeter the voltage at P1-B23
(RAM + 5V. The output response shall be as specified in 3.2.1.5.
4.6.8 Common connector contact continuity. With no external
power connected to the memory circuit card assembly, measure with
an ohm meter the resistance between the following connector
contacts. All measured resistances shall be as specified in
3.2.1.6.
P1-A18
to
P1-A1
P1-B1
P1-B18
to
P1-B33
to
P1-B1
P1-B50
to
P1-B1
4.6.9 Pullup resistor. With no external power connected to
the memory circuit card assembly, measure with an ohm meter the
resistance between P1-A38 and P1-A1. The resistance shall be as
specified in 3.2.1.7.
4.6.10 Workmanship. "The memory shall be subjected to a
visual and tactile examination for evidence of faulty
workmanship. The assembly shall conform to the requirements of
3.6.
4.7 Reliability testing. "The requirement for reliability
test approval and the responsibility (Government or contractor)
for reliability testing shall be as specified in the contract.
The sample for reliability test shall consist of 3 memory's. The
samples shall be manufactured in the same manner, using the same
materials, equipment processes, and procedures as will be used in
the production of the balance of the contract quantity. All parts
and materials, including packaging and packing, shall be obtained
from the same source of supply as will be used in the production
of the balance of the contract quantity.
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