T- 2.0.2 T5 Less Than 20.0 Volts; T- 2.0.3 Pin 7 Is 4.0 Volts Or More - Fresenius Medical Care 2008K2 Troubleshooting Manual

T- 2.0.2 T5 LESS THAN 20.0 VOLTS

CAUTION!
a) The next measurement will be from the Power Logic board's twenty-pin X2 cable, at
7.
Pin 9, next door, is connected to 24 volts DC and
DAMAGE several boards!
1) Use the protected red meter lead!
2) Figure below, place the lead horizontally on pin 7
PIN 7
b) Measure at , (BOTTOM row, four pins from the REAR of the machine). 4.0 volts DC or MORE?
Yes Pin 7 is 4.0 volts OR MORE! See procedure number
No Pin 7 is LESS THAN 4.0 volts! Proceed to

T- 2.0.3 PIN 7 IS 4.0 VOLTS OR MORE

All card cage signals appear to be good!
Set your meter AC voltage (~ V, V
a)
b) NTC #2 remains unplugged till instructed!
Parts c and d next page
touching pins 7 and 9 together WILL
To prevent this, TWO (2) precautions:
)!
AC
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
T- 2.0.3 (page 265).
page 268
, procedure number
pin
T- 2.0.6.
Page 265