MCB LED Indication
Note:
Use a multi-meter
to test the power
socket.
220v mode:
210v 〜 250v
Note:
For MCB
(Lower-board)
Note: For PCB
(Upper-board)
When we designed the lower control board (MCB) for our
treadmills we placed status lights (LEDs) on it to aid in field
diagnosis and repair. The following is an overview of what
these indicator lights mean and what can be checked with
them in the field.
Light- When lit, this indicates that the MCB has power
applied. If this LED is off, check connections, power
switch position, fuses and circuit breakers. If the AC light
is not lit, the MCB will not operate.
Light- When lit, this indicates the
presence of the unregulated 18 volt direct
current supply necessary for the operation of the MCB
circuitry. If dim the supply voltage may be marginal and if
out, not present or inadequate. If this light is not lit, the
MCB will not operate even if the PCB is operating properly.
If the AC light is lit and the +11V and +18V light are not,
check fuse F1. If the +11V light is lit and the +18V light is
not lit, return the board to JHT.
Light- When lit, this indicates the presence of the
regulated 11 volt direct current supply necessary for the
operation of the PCB. If dim the supply voltage may be
marginal and if out not present or inadequate. If the light
is not lit, the console will not operate. If the AC and +18V
light are lit and the +11V light is not, check for shorted
cabling or a defective upper console. If the AC light is lit
and the +11V and +18V lights are not, check fuse F1.
MTR
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