Low-voltage power-supply PCA
The low-voltage power supply converts AC power into the DC voltage that product components use.
Figure 1-6
Low-voltage power-supply PCA
+3.3VA
+3.3VA
+3.3VA
+3.3VA
+3.3VA
+3.3VB
+3.3VB
+5V
+3.3VC
+3.3VD
Rectifying
circuit
Zerocross
detection
circuit
High-voltage
circuit
Fuser circuit
+24VB
/PSTYP100
+24VB
+24VC
+24VC
+24VD
/ZEROX
RMT_24V
RMT_PFC
Low-voltage power supply
Power switch
AC input
+24V
generation
circuit
DC controller
Power fuse
FU1
+3.3V
generation
circuit
Protection
circuit
Formatter
High-voltage power supply
+5V
Interlock
switch
SW2
Connector PCA
Power fuse
FU2
Power fuse
FU3
+5V
generation
circuit
Interlock
switch
SW1
The following table shows the specifications for the DC power supply.
ENWW
Engine control system
11
Summary of Contents for LASERJET ENTERPRISE MFP M725dn
Page 1: ...LASERJET ENTERPRISE MFP M725 Troubleshooting Manual M725z M725dn M725f M725z ...
Page 2: ......
Page 3: ...HP LaserJet Enterprise MFP M725 Troubleshooting Manual ...
Page 6: ...iv Conventions used in this guide ENWW ...
Page 32: ...xxx ENWW ...
Page 142: ...110 Chapter 1 Theory of operation ENWW ...
Page 457: ...4 Close the fuser jam access cover 5 Close the fuser door ENWW Clear jams 425 ...
Page 475: ...1 Lift the document feeder latch 2 Open the document feeder cover ENWW Clean the product 443 ...
Page 516: ...484 Appendix A Service and support ENWW ...
Page 545: ......
Page 546: ... 2013 Hewlett Packard Development Company L P www hp com CF066 91023 CF066 91023 CF066 91023 ...