TM 11-5820-890-30-4
Section IV.
Subject
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operational Check
. . . . . . . . . . . . . . . .
Repair Instructions . . . . . . . . . . . . . . . . . . . . . .
Visual Inspection of Battery Tray Assembly
Replacement of
Replacement of
Replacement of
Replacement of
Replacement of
Replacement of
Replacement of
Replacement of
Replacement of
Replacement of
Replacement of
Replacement of
Replacement of
Replacement of
Replacement of
Mounting Plate
. . . . . . . . . .
MAINTENANCE PROCEDURES
Para
. . . . . . . . .. . . . . . . . . . . . . . . . . . . 14-15
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-16
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-17
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-18
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-19
Battery Tray Circuit Card Assembly (12A1A1)
. . . . . . . . . . . . . . . . . . . . . . 14-20
Connector Board Circuit Card Assembly (12A1A2) and P1 Connector . 14-21
R1 Resistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-22
VR1 Zener Diode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-23
J1 Connector
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-24
U1 Voltage Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-25
Terminal Lug . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-26
Wires . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . 14-27
DS1 Lamp Holder . . . . . . . . . . . . . . . . . . . . . . . . 14-28
Seal Screw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-29
S1 Pushbutton Switch
. . . . . . . . . . . . . . . . . . .
14-30
Battery Tray Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-31
Battery Box Gasket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14-32
Threaded Screw Inserts . . . . . . . . . . . . . . . . . . . . . . 14-33
Page
14-18
14-18
14-18
14-19
14-20
14-21
14-23
14-24
14-25
14-26
14-27
14-29
14-30
14-31
14-32
14-33
14-34
14-37
14-37
14-16. GENERAL.
This section includes the operational check, repair instructions, and visual inspection procedures. The
operational check is used to verify the operation of a repaired battery tray. It is also used to verify the symptom of
a faulty battery tray. It will identify the troubleshooting chart to be used. When a bad module is identified, replace
it using the procedure in this section.
14-16. OPERATIONAL CHECK.
Perform the operational check found in paragraph 14-11 to verify proper operation of the battery tray.
14-17. REPAIR INSTRUCTIONS.
The following instructions apply to all repair tasks unless otherwise noted in the procedure.
a. Begin procedure with the battery tray pushbutton switch S1 out (not pushed). Do not press the S1
pushbutton unless directed to in order to check its operation.
b. Disconnect any external cables connected to the battery tray.
c. Inspect the battery tray. The visual inspection procedure is in paragraph 14-18.
CAUTION
Steps marked with must be performed exactly as written. They are critical in maintaining
the nuclear hardness of the battery tray. Seals must not be damaged. All screws must be
torqued to the limits specified in the replacement procedures.
d. The battery tray must be tested after replacement of an electrical component.
14-18
