3-4. POWER SUPPLY MODULE. Continued
+28 V line and supplies LOW V RESET to the bus interface module when the voltage drops to about +18 V. The
take control circuit switches the front panel VOL control in or out of the circuit depending on the TAKE CONTROL
input. TAKE CONTROL is either ground or an open circuit. Ground input bypasses the VOL control.
Figure 3-4. Power Supply Functional Block Diagram
Section II. REPAIR PARTS, SPECIAL TOOLS, TMDE, AND SUPPORT EQUIPMENT
3-5. COMMON TOOLS AND EQUIPMENT
For authorized common tools and equipment, refer to the Modified Table of Organization and Equipment (MTOE)
applicable to your unit. Common tools required for maintenance of the rcu are listed in the Maintenance Alloca-
tion Chart. It is appendix B of TM 11-5821-333-12.
3-6. SPECIAL TOOLS, TMDE, AND SUPPORT EQUIPMENT
No special tools are required. For TMDE and support equipment refer to the Maintenance Allocation Chart,
appendix B of TM 11-5821-333-12.
3-7. REPAIR PARTS
Repair parts are listed and illustrated in TM 11-5821-333-23P.