FTS 371 SMART USER MANUAL
Flash Technology, LLC
Revision 4 – 9/7/2021
38
SECTION 3 – MAINTENANCE INSTRUCTIONS
SAFETY
Warning!
Read the
now (Page 3). Disconnect primary power before opening enclosures.
Work safely, as follows:
1.
Remove rings and watches before opening the equipment.
2.
Shut off the equipment and wait one minute before proceeding.
3.
Remove the component or connect the test instruments.
4.
Replace the component.
5.
Turn on the power and test the system.
6.
Turn off the power and disconnect the test equipment.
MAINTENANCE
Keep the circuit boards free of accumulated dust. Brush and vacuum as necessary.
Note:
Do not use compressed
air to clean this equipment.
TROUBLESHOOTING
The most effective troubleshooting procedure begins with observing the behavior of the system. This often leads
directly to a faulty component or other abnormal condition.
(page 45) contains information to help locate the cause of a problem.
COMPONENT REMOVAL AND REPLACEMENT
Note the wiring connections and wire colors when you remove wires from their connections. Replace them exactly
as they were.
FTS 371 FTC SMART CONTROLLER
PCB1 (2151500 FTS 371 FTC SMART AC) (2153500 FTS 371 FTC SMART DC) (2153510 FTS 371 FTC
SMART DC (-) (24 OR 48V)
Remove: Unplug wire connectors at positions J1, J2, J3, J4, J5, J9 and J10. Remove four Phillips-head screws located
near the corners of PCB1. Lift the board out of the enclosure.
Replace: Reverse the removal procedure.
POWER SUPPLY (5371110 FTS 371 FTC SMART AC) (5371125 FTS 371 FTC SMART DC (-) 24/48V)
Remove: PCB1 must be removed first since the power supply is located underneath it. First, follow the removal
procedure for PCB1. Then, remove the four Phillips-head screws located near the corners of the Power Supply.
Replace: Reverse the removal procedure. Take care to ensure the power supply is connected to PCB1 at J9 and J10.
