Section TOC
Master TOC
|
| TROUBLESHOOTING & REPAIR |
DC BUSS POWER SUPPLY PC BOARD TEST(CONTINUED)
Return to
Return to
8.Check the DC Buss Power Supply PC Board input and output voltages according to Table F.2. See Figure F.5 and the Wiring Diagram.
9.If all the voltages are correct, the DC Buss Power Supply PC Board is operating prop- erly.
10.If any of the output voltages are not correct and the input voltage is correct, the DC Buss Supply Board may be faulty.
11.If the input voltage is not correct, check leads #401A, #402, #302, #202, #231 and the On/Off mode switch (SW1). See the Wiring Diagram.
NOTE: The input voltage to the DC Buss Power Supply PC Board should be the same as the input voltage applied to the
Return to Section TOC
Return to Section TOC
Return to Section TOC
Return to Master TOC
Return to Master TOC
Return to Master TOC
TABLE F.2
DC BUSS POWER SUPPLY PC BOARD VOLTAGE TABLE
Positive Meter Probe | Negative Meter Probe | Acceptable Voltage | Conditions/Comments | |
Test Point | Test Point | Reading | ||
| ||||
|
|
|
| |
Plug P46 – Pin 1 | Plug P46 – Pin 3 | 50 – 113 VDC | Should be same as input | |
voltage supplied to | ||||
|
|
| ||
|
|
| ||
|
|
|
| |
Plug P47 – Pin 7 | Plug P47 – Pin 1 | 38.0 – 42.0 VDC | Supply to Analog Control | |
Power Supply PC Board | ||||
|
|
| ||
|
|
|
| |
Plug P47 – Pin 8 | Plug P47 – Pin 6 | 38.0 – 42.0 VDC | Supply for Fan and Input | |
Contactor | ||||
|
|
| ||
|
|
|
| |
Plug P47 – Pin 4 | Plug P47 – Pin 6 | 38.0 – 42.0 VDC | Output to Peripheral | |
Board | ||||
|
|
| ||
|
|
|
|
12.If finished testing, perform the Case Cover Replacement procedure.