4-2. General Service Tables
4-2-1. Test Points
1. SCU
TP1 - Drive clock (8 MHz): system, main cpu
TP2 - Drive clock (3.072 MHz): buzzer timer, bar
code reader
TP3 - + 5V
TP4 - COM1 (Ground)
2. SPU
TP1 - COM1 (Ground)
TP2 - Drive clock (8 MHz): SPU system, ADCR1
(VPU), hard disk controller
TP3 - Slave cpu drive clock (16 MHz)
TP4 - COM1 (Ground)
TP5 - Data for printing (to the laser diode)
TP6 - Transfer clock (4.0748 MHz) for
printed data
TP7 - + 5V
3. MBU
TP1 - Drive clock (32.768 kHz): Real time clock
TP2 - Used when adjusting VC1
TP3 - COM1 (Ground)
TP4 - + 5V
4. UIB
TP1 - Laser main scan start sync signal,
from LSD
TP2 - COM1 (Ground)
TP3 - Laser power feedback signal (XLPDET,
from LDDR)
TP4 - + 5V
COM1 - Ground
5. LIB
TP1 - COM1 (Ground)
TP2 - COM3 (Ground)
6. DSB
TP1 - + 5V
TP2 - COM1 (Ground)
7. DRU
TP1 - COM1 (Ground)
TP2 - + 5V
8. VPU
TP1 - COM2 (Ground)
TP2 - Video signal output
TP3 - COM1 (Ground)
9. SBU
VIDEO - Video signal (XVIDEO)
SH - CCD drive clock (main scan start sync)
COM2 - Ground
GND - Ground
4-3
Summary of Contents for FAX7000L
Page 2: ......
Page 8: ...SECTION 1...
Page 24: ...1 3 2 Minimum Space Requirements 1 15...
Page 28: ...1 18a...
Page 50: ...SECTION 2 PROGRAMMING TESTING...
Page 53: ...2 1 Operation Panel 2 1...
Page 169: ......
Page 223: ...S E C T I O N 4...
Page 234: ...S E C T I O N 5...
Page 307: ...S E C T I O N 6...
Page 308: ...SECTION 6 OPTIONAL BAR CODE READER 6 1 Accessory Check List 6 1 6 2 Installation Procedure 6 2...
Page 311: ...S E C T I O N 7...
Page 313: ...7 1 Point to point Diagram 7 1...
Page 314: ...7 2...
Page 315: ...7 3...
Page 344: ...7 3 Block Diagrams 1 Overall Machine Control Overall 7 32...
Page 345: ...Main CPU 7 33...
Page 346: ...Main Slave CPU Interface 7 34...
Page 347: ...Slave CPU...
Page 348: ...Communication Control 7 36...
Page 349: ...2 Video Data Path Transmission 7 37...
Page 350: ...Reception 7 38...
Page 351: ......
Page 352: ...3 Power Distribution From PSU to SPU 7 40...
Page 353: ...Distribution by SPU 7 41...
Page 354: ...UIB and LIB 7 42...
Page 355: ...4 Scanner Fluorescent Lamps 24VD Power Supply 7 43...
Page 356: ...Document Feed Mechanism 7 44...
Page 357: ...CCD Drive 7 45...
Page 358: ...5 Communication Control 7 46...
Page 359: ...6 Printer Laser Diode Drive 7 47...
Page 360: ...Main Scan Synchronization 7 48...
Page 361: ...Fusing Lamp Power Switching 7 49...
Page 362: ...Fusing Lamp Temperature Monitoring...
Page 363: ...7 4 Electrical Component Layout 7 51...
Page 364: ...7 52...
Page 367: ...7 5 Timing Charts 1 Scanner 7 55...
Page 368: ...2 Printer 7 56...
Page 369: ...7 57...
Page 370: ......
Page 371: ...APPENDIX Appendix A Glossary A 1...