Tweco 130i Transarc Service Manual - Manual (Page 49)

TRANSARC 130i
Manual 0-5282 6-7 TROUBLESHOOTING
Input Rectifier Testing Multimeter Lead Placement Diode Voltage
AC1 to DC+ Positive meter lead to testpoint 17
Negative meter lead to testpoint 18
0.2 – 0.8 VDC
AC2 to DC+ Positive meter lead to testpoint 19
Negative meter lead to testpoint 18
0.2 – 0.8 VDC
AC1 to DC- Positive meter lead to testpoint 17
Negative meter lead to testpoint 20
0.2 – 0.8 VDC
AC2 to DC- Positive meter lead to testpoint 19
Negative meter lead to testpoint 20
0.2 – 0.8 VDC
Table 6-7: Input Rectifier, Multimeter set to measure Diode Voltage
6.09 DC Bus voltage measurement
Apply voltage to the Power Source.
!
WARNING
There are extremely dangerous voltage and power levels present inside these Power Sources. Do not
attempt to diagnose or repair unless you have had training in power electronics measurement and
troubleshooting techniques.
Once power is applied to the Power Source, there are extremely hazardous voltage and power levels present.
Do not touch any live parts.
A-11844