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TM 11-5820-890-30-5
Section IV. MAINTENANCE PROCEDURES
Subject
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operational Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repair Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement of Heat Sink Assembly (8A1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement of Power Supply Adapter Chassis (8A2) . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement of Identification Plate, . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement of Seal Screw. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement of J3 or J4 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement of J5 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement of P1 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement of Sealing Guide Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement of J2 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement of LCL/RMT Rotary Switch (8A2S1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement of CR1 Diode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement of CR3 or CR4 Diode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement of CR3 and CR4 Diode Angle Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement of Two-Wire Transient Protection Circuit Card Assembly (8A2A1) . . . . . . .
Replacement of Diode Circuit Card Assembly (8A2A2) . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement of TB1 Terminal Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement of CR2 Diode on K1 Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement of K1 Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement of CB1 Circuit Breaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement of Lamp Holder for DS1 Lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement of E1 or E2 Binding Post . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement of J1 Conductor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement of Rear Access Cover Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement of Power Supply Adapter Chassis Assembly . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement of Wiring in Power Supply Adapter Chassis (8A2) . . . . . . . . . . . . . . . . . . . .
Para
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14-14. GENERAL.
This section includes the operational check and the repair procedures. The operational check is used to verify
the operation of a repaired power supply adapter. It is also used to verify the symptom of a faulty power supply
adapter. lt will identify the troubleshooting chart to be used. When a bad module is identified, replace it using the
procedure in this section.
14-15. OPERATIONAL CHECK.
Perform the operational check found in paragraph 14-9 to verify proper operation of the power supply adapter.
14-16. REPAIR INSTRUCTIONS.
The following instructions apply to all repair tasks unless otherwise noted in the procedure.
a.
Begin procedure with power supply adapter switch CB1 set to OFF.
b. Disconnect any external cables connected to power supply adapter.
c.
Inspect power supply adapter. Replace power supply adapter chassis if the power supply adapter is
physically damaged, such as with a broken connector.
d.
Power supply adapter must be tested after replacement of a module.
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