Power Supply Voltage Checks And Fuses; Processor Board Voltage Checks - GE T2100 Service Manual

Troubleshooting
TDU Event /
Error Code
0x1d

Power Supply Voltage Checks and Fuses

With the power on, remove the side panel on the electronics box to measure the
system's supply voltages as stated below. Remove the shroud and e-box cover to
view the LEDs and fuses.

Processor Board Voltage Checks

Signal Name
+5V_ISO
+3.3V_ISO
+VUNREG
+5.1V
+24V
Also verify that U15, pin 8, has 8.2 VDC (+/- 5%)
100
Number
of Red
LED
Flashes Definition
DC Bus
Flashing
Undervoltage Trip
Red and
Green
Test range
Nominal value
+5.1 VDC
+/- 5%
+3.3 VDC
+/- 5%
+11.5 VDC
+/- 5%
+5.1 VDC
+/- 5%
+24 VDC
+/- 5%
T2100 Treadmill
Check These Items
Indicates the DC Bus voltage has fallen
below the undervoltage level.
1. Powercycle the T2100 Treadmill
and monitor the T2100 Treadmill
for reoccurrence of this error. (This
may be an isolated incident.)
2. Verify that the AC power supply
voltage is correct. See
Voltage Test" on page
3. Verify that the voltage check test
points on the power and processor
control boards are within the test
range. See "Power Supply Voltage
Checks and Fuses" on page
4. Determine if any TDU
Troubleshooting Table errors
are also being reported, and if
so, follow the troubleshooting
procedure for the reported errors.
5. Replace the drive controller.
Test point
Reference
TP6 ISOGND TP7
TP1 ISOGND TP7
TP5 ISOGND TP7
TP8 DGND TP4
TP2 GND_24V TP3
"AC Line
39.
100.
2021403-120F