Xerox 1235N Service Guide - Page 49
POWER Connector pinout, DC Output
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UPC - 042215474580
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DC Output: With the DMM set to measure DC voltages, measure the voltages at the POWER connector on the bottom of the print engine controller board for +3.3VDC, +5 VDC, +12 VDC and +32 VDC. (You must remove the right side cover and right shield plate to access the engine controller board.) If the voltages are not correct, inspect the wiring harness connecting the POWER connector of the engine controller board to the CN1 connector of the low-voltage power supply. If the harness is undamaged, replace the power supply. POWER Connector pinout Pin Voltage/Signal Level Pin 1 +12 VDC 16 2 No connection 17 3 Ground 18 4 Ground 19 5 Ground 20 6 Ground 21 7 +32 VDC 22 8 +32 VDC 23 9 +32 VDC 24 10 +32 VDC 25 11 +5 VDC 26 12 +5 VDC 27 13 +5 VDC 28 14 +5 VDC 29 15 +3.3 VDC 30 Voltage/Signal Level +3.3 VDC +3.3 VDC +3.3 VDC 32 V Ground No connection No connection Ground Ground Ground Ground Ground Ground No connection 24 VDC If DC voltages are not being output by the power supply, proceed to the next step, "Inspecting the low-voltage power supply fuse" on page 36. If the +5 and +32 VDC voltages measure correctly, but the printer does not operate correctly, then proceed to the topic, "Safety interlocks" on page 36. Service Guide 35
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