HindlePower AT30 SERIES Operating And Service Instructions page 63

Replacing the Main Control (A1) and/or Gate Driver (A15) PC Boards
For details of this procedure, refer to Service Instruction (JD5012-00).
Printed circuit boards are sensitive to damage from static discharges. Leave
replacement boards in their anti-static bags until you are ready to install them.
Ground yourself before handling the board, by touching the ground stud on the
back of the door. Always handle printed circuit boards by their edges.
Turn off and remove all power to the AT30. Disconnect the battery from
the dc output terminals. Remove any optional user wiring from the
various Main Control PC Board (A1) terminals (e.g. TB3, TB8/J6, J3,
etc.).
Note that A1 and A15 are mounted together as a pair. Remove the signal
wire harness plugs (J25/J26) from the top and left edges of A15. The
boards are mounted on ten (10) plastic standoffs. Compress the tab on
each standoff, and pull the boards toward you until they clear all the
standoffs. If you are replacing only one board, carefully separate the
existing boards (A1 & A15) and reconnect the replacement board.
Insert the replacement board(s) onto the instrument panel with the same
orientation, and push them onto the standoffs. Make sure the board is
fully seated on all ten (10) standoffs. Reconnect the signal wire harness
plugs (J25/J26) to the Gate Driver PC Board (A15), matching the
orientation when removed. Replace any user wiring to the various Main
Control PC Board (A1) terminals (e.g. TB3, TB8/J6, J3, etc.).
See Section 2.1 for the steps to restart the AT30. If your parameters (float
voltage, etc.) are different from the factory preset values, you should
program in the new values now. See Section 2.3. You should also
recalibrate the dc voltmeter according to Section 2.3.7.
Replacing the ac input or dc output circuit breaker (CB1/CB2)
Turn off and remove all power to the AT30. Remove the Plexiglas safety
shield. Disconnect the battery from the dc output terminals TB1(+/-).
This includes remote sense wires if they were installed. Check with a
voltmeter before proceeding.
Remove the mounting screws from the circuit breaker on the mounting
bracket, and carefully remove the breaker from the AT30. Remove the
wires from the terminals, one at a time, and transfer the wires to the
terminals of the replacement breaker. Be sure the terminal fasteners are
tight. Install the replacement breaker into the bracket, reversing the
procedure above, using the original mounting screws.
SERVICING THE AT30
NOTICE
59