Service Manual — COATS Model IBS 2000 • 27
3.
Squeeze the retainers on the switch and push it
through the opening in the accessory column.
4.
Disconnect wiring to the on/off switch.
5.
Connect wires to the new switch and install into the
column.
6.
Install lower accessory column cover and plug in bal-
ancer.
7.
Perform FUNCTION CHECKS.
Circuit Breaker Replacement
1.
Unplug the balancer.
2.
Remove the lower accessory column cover.
3.
Remove the two (2) screws to the circuit breaker.
4.
Squeeze the retainers on both sides of the circuit
breaker and push it through the accessory column.
5.
Install new circuit breaker. Connect wires.
6.
Install lower accessory column cover.
7.
Plug in balancer.
8.
Perform FUNCTION CHECKS.
Power Supply Board Replacement
1.
Unplug the balancer.
2.
Remove weight tray and weight tray shield.
3.
Disconnect the Power Supply connector from the
main harness.
4.
Disconnect the Powers Supply from the Motor
Control board at P6.
5.
Disconnect Chassis ground.
6.
Compress the (4) plastic standoffs, and carefully
remove the board.
7.
Replace defective board and reinstall in reverse
order.
8.
Plug in balancer and perform FUNCTION CHECKS.
Note:This board contains a 2.5 amp, 250V fuse
which can be replaced if blown. However, if
the fuse does blow there could be some other
problem with the machine. Make sure to fol-
low all trouble shooting procedures after
replacing a board.
Motor Controller Board Replacement
1.
Unplug the balancer.
2.
Remove weight tray and weight tray shield.
3.
Disconnect the incoming power from T1 of the MC
board. If single phase, disconnect the capacitor from P4
of the MC board.
4.
Disconnect the CONTROL from P3.
5.
Disconnect the power supply from P6.
6.
Disconnect the fan motor from P1.
7.
Disconnect the motor from P2.
8.
Unscrew both SSR's from the power panel.
9.
Disconnect switch from P5.
10.
Disconnect the Interlock switch from P7 (only mod-
els after 12/22/97).
11.
Compress plastic standoffs and carefully remove
the board.
12.
Replace defective Motor Controller Board and rein-
stall in reverse order.
13.
Install weight tray and weight tray shield and plug
in balancer.
14.
Perform FUNCTION CHECKS.
CPU Board Replacement
1.
Unplug the balancer.
2.
Disconnect the Power Supply Board from P10 of the CPU.
3.
Disconnect the RS232 cable.
Caution! If this cable is not plugged in or does
not have a good connection after repair, you
will get a WARNING message.
4.
Remove all other phone type cables: CONTROL,
HOOD, ENCODER, and PIEZOS.
5.
Compress plastic (5) standoffs and carefully remove
the board.
6.
Replace defective CPU Board and reinstall in reverse order.
7.
Plug in the balancer.
8.
Perform FUNCTION CHECKS.
Note:The CPU board contains a replaceable E-
PROM chip for software revision. This chip
should be replaced in conjunction with the E-
Prom chip on the display board, unless speci-
fied by the manufacturer.
Direct Drive
Summary of Contents for Coats IBS 2000
Page 2: ...ii Service Manual COATS Model IBS 2000 Direct Drive...
Page 26: ...22 Service Manual COATS Model IBS 2000 Direct Drive Motor Controller Diagram...
Page 36: ...32 Service Manual COATS Model IBS 2000 Direct Drive IBS 2000 Wiring Diagrams...
Page 37: ...Service Manual COATS Model IBS 2000 33 Direct Drive...
Page 38: ...34 Service Manual COATS Model IBS 2000 Direct Drive...
Page 39: ...Service Manual COATS Model IBS 2000 35 Direct Drive...
