Sharp FO-2970M Service Manual - Page 2

] Circuit description of TEL/LIU and Hook SW PWB - manual

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FO-2970MU CONTENTS CHAPTER 1. GENERAL DESCRIPTION [1] Specifications 1-1 [2] Operation panel 1-2 [3] Refer to the service manual of FO-2950MU [4] Refer to the service manual of FO-2950MU [5] Refer to the service manual of FO-2950MU [6] Refer to the service manual of FO-2950MU [7] Refer to the service manual of FO-2950MU CHAPTER 2. ADJUSTMENTS [1] Adjustments 2-1 [2] Diagnostics and service soft switches 2-4 [3] Troubleshooting 2-27 [4] Error code table 2-28 CHAPTER 3. MECHANICAL DESCRIPTION [1] Refer to the service manual of FO-2950MU [2] Refer to the service manual of FO-2950MU CHAPTER 4. DIAGRAMS [1] Block diagram 4-1 [2] Wiring diagram 4-2 [3] Point-to-point diagram and connector signal name 4-3 CHAPTER 5. CIRCUIT DESCRIPTION [1] Circuit description 5-1 [2] Circuit description of control PWB 5-2 [3] Circuit description of TEL/LIU and Hook SW PWB 5-21 [4] Circuit description of power supply PWB 5-23 [5] Circuit description of CIS UNIT 5-24 CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS LAYOUT [1] Control PWB circuit 6-1 [2] TEL/LIU and Hook SW PWB circuit 6-12 [3] Printer PWB circuit 6-15 [4] Power supply PWB circuit 6-18 [5] Operation panel PWB circuit 6-20 CHAPTER 7. OPERATION FLOWCHART [1] Refer to the service manual of FO-2950MU [2] Refer to the service manual of FO-2950MU CHAPTER 8. OTHERS [1] Refer to the service manual of FO-2950MU [2] Refer to the service manual of FO-2950MU PARTS GUIDE

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FO-2970MU
CONTENTS
CHAPTER 1. GENERAL DESCRIPTION
[1] Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1
[2] Operation panel
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2
[3] Refer to the service manual of FO-2950MU
[4] Refer to the service manual of FO-2950MU
[5] Refer to the service manual of FO-2950MU
[6] Refer to the service manual of FO-2950MU
[7] Refer to the service manual of FO-2950MU
CHAPTER 2. ADJUSTMENTS
[1] Adjustments
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-1
[2] Diagnostics and service soft switches
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-4
[3] Troubleshooting
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-27
[4] Error code table
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-28
CHAPTER 3. MECHANICAL DESCRIPTION
[1] Refer to the service manual of FO-2950MU
[2] Refer to the service manual of FO-2950MU
CHAPTER 4. DIAGRAMS
[1] Block diagram
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-1
[2] Wiring diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-2
[3] Point-to-point diagram and connector signal name
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-3
CHAPTER 5. CIRCUIT DESCRIPTION
[1] Circuit description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-1
[2] Circuit description of control PWB
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-2
[3] Circuit description of TEL/LIU and Hook SW PWB
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-21
[4] Circuit description of power supply PWB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-23
[5] Circuit description of CIS UNIT
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-24
CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS LAYOUT
[1] Control PWB circuit
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-1
[2] TEL/LIU and Hook SW PWB circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-12
[3] Printer PWB circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-15
[4] Power supply PWB circuit
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-18
[5] Operation panel PWB circuit
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-20
CHAPTER 7. OPERATION FLOWCHART
[1] Refer to the service manual of FO-2950MU
[2] Refer to the service manual of FO-2950MU
CHAPTER 8. OTHERS
[1] Refer to the service manual of FO-2950MU
[2] Refer to the service manual of FO-2950MU
PARTS GUIDE