System Description
6–35
6.2.13 LSU Control Circuit
The laser control signals are described below.
nLDON
The LSU is activated when this output signal is LOW. If an error occurs, the nLDON output signal level goes
High and the LSU is deactivated.
nVIDEO
This is the actual Data Signal. The Laser is ON when the nVIDEO output signal level is LOW.
nHSYNC
This horizontal synchronization signal transmitted from the Beam Detection Sensor sets the horizontal
position of the laser beam as it crosses the OPC Drum.
nPMON
This is the Polygon Motor Control Signal. The Polygon Motor rotates when the nPMON output signal level
is LOW.
nPMRDY
A Phased–Lock Loop (PLL) circuit keeps the Polygon Motor speed constant at 10,000 rpm when the
nPMRDY is at a Low output signal level.
Laser
Timing
Sensor
Polygon
Motor
Laser
Drive
Circuit
Polygon
Motor
Drive
Circuit
IC51
CPU
VDO Signal
nVIDEO
nLDON
nHSYNC
nPMON
LSU
+5V
R409
LPC PCB
5
4
1
9
CN51
CN1
P101
20
nPMRDY
7
61
36
2
1
1
2
3
IC52
Laser Unit Control Circuit Block Diagram
R412
Summary of Contents for PANAFAX DF-1100
Page 1: ...DF 1100 Facsimile ORDER NO MGCS980901C0 H13 Standard Version ...
Page 8: ...vi Notes ...
Page 9: ...7 Chapter 1 General Description ...
Page 17: ...General Description 1 9 External View ...
Page 18: ...Panasonic DF 1100 1 10 Control Panel ...
Page 22: ...Panasonic DF 1100 1 14 Notes ...
Page 23: ...Chapter 2 Disassembly Instruction ...
Page 55: ...Disassembly Instruction 2 33 2 16 Screw Identification Template ...
Page 56: ...Panasonic DF 1100 2 34 Notes ...
Page 57: ...Chapter 3 Maintenance Adjustments and Check Points ...
Page 64: ...Panasonic DF 1100 3 8 3 7 General Circuit Diagram 3 7 1 Fax Circuit ...
Page 65: ...Maintenance Adjustments and Checkpoints 3 9 3 7 2 Printer Circuit ...
Page 66: ...Panasonic DF 1100 3 10 3 7 3 Option Cassette Circuit ...
Page 92: ...Panasonic DF 1100 3 36 3 10 LCE PCB CN20 CN21 CN25 1 15 TEL LINE ...
Page 99: ...Maintenance Adjustments and Checkpoints 3 43 3 12 PNS1 PCB CN39 11 1 ...
Page 113: ...Chapter 4 Troubleshooting ...
Page 166: ...Panasonic DF 1100 4 54 Notes ...
Page 167: ...Chapter 5 Test Modes ...
Page 192: ...Panasonic DF 1100 5 26 Fuser Error Detection ...
Page 196: ...Panasonic DF 1100 5 30 Notes ...
Page 197: ...Chapter 6 System Description ...
Page 236: ...Panasonic DF 1100 6 40 Notes ...
Page 237: ...Chapter 7 Exploded View Parts List ...
Page 244: ...Panasonic DF 1100 7 8 Notes ...
Page 250: ...Panasonic DF 1100 7 14 Notes ...
Page 254: ...Panasonic DF 1100 7 18 Notes ...
Page 258: ...Panasonic DF 1100 7 22 Notes ...
Page 264: ...Panasonic DF 1100 7 28 Notes ...
Page 274: ...Panasonic DF 1100 7 38 Notes ...
Page 275: ...Chapter 8 Installation ...
Page 276: ...Panasonic DF 1100 8 2 Notes ...
Page 291: ...Chapter 9 Options and Supplies ...
Page 296: ...Panasonic DF 1100 9 6 Notes ...
Page 297: ...Chapter 10 Schematic Diagram ...
Page 298: ...Panasonic DF 1100 10 2 ...
Page 299: ...Schematic Diagram 10 3 ...
Page 300: ...Panasonic DF 1100 10 4 ...
Page 301: ...Schematic Diagram 10 5 ...
Page 302: ...Panasonic DF 1100 10 6 ...
Page 303: ...Schematic Diagram 10 7 ...
Page 304: ...Panasonic DF 1100 10 8 ...
Page 305: ...Schematic Diagram 10 9 ...
Page 306: ...Panasonic DF 1100 10 10 ...
Page 307: ...Schematic Diagram 10 11 ...
Page 308: ...Panasonic DF 1100 10 12 ...
Page 309: ...Schematic Diagram 10 13 ...
Page 310: ...Panasonic DF 1100 10 14 ...
Page 311: ...Schematic Diagram 10 15 ...
Page 312: ...Panasonic DF 1100 10 16 ...
Page 313: ...Schematic Diagram 10 17 ...
Page 314: ...Panasonic DF 1100 10 18 ...
Page 315: ...Schematic Diagram 10 19 ...
Page 316: ...Panasonic DF 1100 10 20 ...
Page 317: ...Schematic Diagram 10 21 ...
Page 318: ...Panasonic DF 1100 10 22 ...
Page 319: ...Schematic Diagram 10 23 ...
Page 320: ...Panasonic DF 1100 10 24 ...
Page 321: ...Schematic Diagram 10 25 ...
Page 322: ...Panasonic DF 1100 10 26 ...
Page 323: ...Schematic Diagram 10 27 ...
Page 324: ...Panasonic DF 1100 10 28 ...
Page 325: ...Schematic Diagram 10 29 ...
Page 326: ...Panasonic DF 1100 10 30 ...
Page 327: ...Schematic Diagram 10 31 ...
Page 328: ...Panasonic DF 1100 10 32 ...
Page 329: ...Schematic Diagram 10 33 ...
Page 330: ...Panasonic DF 1100 10 34 LVPS 100V ...
Page 331: ...Schematic Diagram 10 35 LVPS 200V ...
Page 332: ...Panasonic DF 1100 10 36 Note ...
Page 333: ...Printed in Japan DZZSM064 ...