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HQ Sweet Sixteen Service Manual
Located on the back side of the display circuit board
are two LEDs (Figure 13.6). These LEDs are not visible
without removing the circuit board from the display cast-
ing. The two LEDs will fl ash to indicate whether commu-
nication is occurring between the display board and the
C-Pod. The LED closest to the edge of the board (D10)
indicates the display board is transmitting data. The LED
more toward the middle (D8) will fl ash when data is being
received.
Troubleshooting Communication Issues
If there is a communications issue between the handlebar
board and the C-Pod, then the transmit and receive LEDs
will not be fl ashing at their regular rapid rate. Instead,
they will either be off, on, or fl ashing only intermittently.
If this occurs, the display will probably not boot up. It will
remain in the logo screen.
Possible Solutions
• Try re-booting the HQ
Sweet S
ixteen
to see if the prob-
lem is corrected.
• If not, verify that the cable connecting the handlebar to
the machine head is attached properly and has not been
damaged (both front and rear).
• If this is okay, then the issue is related to the internal
handlebar cable or possibly the C-Pod. The internal
handlebar cable going to the front could be damaged and
should be inspected for damage.
Figure 13.6
There are two fuses located on the P-Pod circuit board.
(Figure 13.7)
. F2 is the fuse for the HQ
Sweet S
ixteen
and
F1 is the fuse for the auxiliary power connector (the con-
nector located just under the main power cord connector
on the P-Pod). If either of these fuses are open there is
a problem with the AC power system that needs to be re-
solved before the P-Pod is replaced. Check the three-pin
cables to the power supplies for damage and replace them
if necessary. If the P-Pod is not replaced correctly these
cables can be pinched during assembly.
If a fuse is blown, replace the P-Pod.
Figure 13.7
• If it does not work in the back, then the problem is in
the display and the display board and/or cable and the ca-
ble and circuit board should be inspected for damage and
replaced if necessary.
• If the LED indicators are not functioning properly on
the display, then this most likely indicates a failure in the
C-Pod and the C-Pod should be replaced.
Display Communications LEDs
Fuses