TM 11-6625-2440-12
CHAPTER 1
INTRODUCTION
Section I. GENERAL
b. Report of Packaging and Handling Deficien-
1-1. Scope of Manual
cies. Fill out and forward DD Form 6 (Packaging
Improvement Report) as prescribed in AR 700-
a. This manual covers the operation and
58/NAVSUPINST 4030.29/AFR 71-13/MCO P4030.29A
organizational maintenance of Test Set, Gyro Stabilized
and DSAR 4145.8.
Platform AN/ASM-385 (fig. 1-1). Technical charac-
c. Discrepancy in Shipment Report (DISREP) (SF
teristics, installation, operation under unusual conditions
361). Fill out and forward Discrepancy in Shipment
and troubleshooting are also included.
Report (DISREP) (SF 361) as prescribed in AR 55-
b. The organizational repair parts and special
38/NAVSUPINST 4610.33/AFR 75-18/MCO P4610. 19B
tools list appears in TM 11-6625-2440-20P.
and DSAR 4500. 15.
d. Reporting of Errors. Reporting of errors,
NOTE
omissions, and recommendations for improving this
The maintenance allocation chart
publication by the individual user is encouraged. Reports
should be submitted on DA Form 2028 (Recommended
current as of 1 July 1971.
Changes to Publications and Blank Forms) and
forwarded direct to Commander, US Army Electronics
1-2. Indexes of Publications
Command, ATTN: DRSEL-MA-Q, Fort Monmouth, NJ
07703.
a. DA Pam 310-4. Refer to the latest issue of DA
e. Reporting Equipment Improvement Recom-
Pam 310-4 to determine whether there are new editions,
mendations (EIR). EIR will be prepared using DA Form
changes, or additional publications pertaining to this
2407, Maintenance Request. Instructions for preparing
equipment.
EIR's are provided in TM 38-750, The Army Maintenance
b.
DA Pam 310-7. Refer to DA Pam 310-7 to
Management System. EIR's should be mailed directly to
determine whether there are modification work orders
Commander, US Army Electronics Command, ATTN:
(MWO's) pertaining to the equipment.
DRSEL-MA-Q, Fort Monmouth, NJ 07703. A reply will be
furnished directly to you.
1-3. Forms and Records
f.
Administrative Storage. For procedures, forms
and records, and inspections required during administra-
a. Reports of Maintenance and Unsatisfactory
tive storage of this equipment, refer to TM 74090-1.
Equipment. Maintenance forms, records, and reports
which are to be used by maintenance personnel at all
maintenance levels are listed in and prescribed by TM
38-750.
Section II. DESCRIPTION AND DATA
1-5. Technical Characteristics
1-4. Purpose and Use
a. Purpose. Test Set, Gyro Stabilized Platform
The test set utilizes positive logic with +0. 25 (+ 0.25) V
representing a 0, false, or low state and + 3. 8 (+ 1.4) V
AN/ASM-385 (fig. 1-1) provides
for
testing
the
representing a 1, true, or high state. Other test set
operational status of a platform, such as Platform, Gyro
characteristics are listed in the following charts.
Stabilized MX-8123/ASN-86 (platform) a unit of
a.
Input Power.
Navigation Set, Inertial AN/ASN-86 (navigation set). The
test set functions to simulate Computer, Navigation
Maximum
CP941/ASN-86 (computer) and Control-Indicator ID-
current
1579/ASN-86 (control-indicator) which are also part of
Voltage
(Hz)
Phase
(amperes)
the navigation set. The test set provides for all loads,
Note. An incorrect input phase sequence is automatically
operating voltages, test control signals as well as the
corrected by, the test set.
conditioning of platform outputs for monitoring by test
3-phase, wye:
equipment.
115 (+ 11.5)V .............. 400 (+ 20
A
0.6
115 (+ 11 5)V .............. 400 (+ 20)
B
9.6
115 (+ 11.5)V .............. 400 (+ 20)
C
9.6
b. Use. The test set is a manually operated
0V.................................................
N
2.2
device with semiautomatic features wherever practicable.
27 (2)V ........................ .......................................
10.0
Its use enables testing of the platform and fault isolation
to a module or replaceable assembly within the platform.
Change 1 1-1