Low Voltage Power Supply (Lvps) Assembly Failure (+24Vdc) - Olivetti DR N17 Service Manual

7.4.7 Low Voltage Power Supply (LVPS) Assembly Failure
(+24VDC)
1 Check for +24VDC between P/J11-11 (24V FAN) and P/J12-4 with P/J13 disconnected.
NOTE: Conduct this analysis before the LVPS Assembly stops voltage output due to the absence of
sufficient load (within 30 seconds after switching on the printer power).
Y: Go to step 2.
N: Replace the LVPS.
2 Check for the voltages between P/J12-1 (+24VDC) and P/J12-4 with P/J25 disconnected.
NOTE: Conduct this analysis before the LVPS Assembly stops voltage output due to the absence of
sufficient load (within 30 seconds after switching on the printer power).
Y: If the +24VDC disappears after connecting P/J13 and P/J25, replace the Print Engine
Controller.
N: Replace the LVPS Assembly.
7-48 687200Q