Power Supply - Brother MP-21C Service Manual

2.7

Power Supply

The power supply uses the switching regulation system to generate the regulated DC
power (+3.3V, +5V, +12V and HVDD), which are converted from the DC input.
(When HVDSEL is open)
Connector pin #1: NC
Connector pin #2 - #4: PCM5V
Connector pin #5 - #7: PCM5V RET
Connector pin #8: +5V
Connector pin #9: +3.3V
Connector pin #10, #11: SGND
Connector pin #12: HVDCUTOUT
Connector pin #13: ADPT
Connector pin #14: HVDSEL
Connector pin #15 - #16: P-RET
Connector pin #17: +12V
Connector pin #18: +24V
II-10