Sharp AR-168S Manual de Serviço Página 61
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AR-168S/168D DISASSEMBLY AND ASSEMBLY 8 - 18
8. Power section
A. List
B. Disassembly procedure
1) Disconnect each connector.
2) Remove the screw, and remove the earth line.
3) Remove two screws, and remove the power PWB unit.
C. Assembly procedure
For assembly, reverse the disassembly procedure.
9. SPF section (SPF model only)
(1) Remove the rear cabinet.
1) Remove four screws.
2) Remove the rear cabinet.
(2) Remove the SPF.
1) Remove the connector and the cable.
2) Remove the SPF.
Pickup unit removal
1) Remove three fixing pawls from the bottom of the machine.
2) Remove the front cover and the rear cover.
No. Part name Ref.
1 Power PWB
No. Part name Ref.
A Sensor PWB
B Pickup solenoid
C Clutch
D Manual paper feed roller, pickup roller
EBelt
F SPF motor
G Paper entry sensor
H PS roller
I Paper exit roller
1)
1)
1)
1)
2)
3)
4)
4)
5)
1)
4)
1)
3)
2)
1
2
2
- SERVICE MANUAL 1
- CAUTION 2
- [1] GENERAL 6
- [2] SPECIFICATIONS 7
- 3. Copy performance 8
- 4. SPLC printer 9
- 5. Scan function 9
- [3] CONSUMABLE PARTS 11
- 4. TD cartridge replacement 12
- 1. Appearance 13
- 2. Internal 13
- 18 19 20 21 14
- 4. Motors and solenoids 15
- 5. Sensors and switches 16
- 6. PWB unit 17
- 7. Cross sectional view 18
- 1. Copier installation 19
- 2. Cautions on handling 19
- Lock Unlock 20
- Grasp here and turn in 20
- CAUTION tape 20
- Protective pins 20
- Pressure plate lock 22
- [Custom installation] 24
- (1) Windows XP (USB/Parallel) 24
- (2) Windows 98/Me/2000 (USB) 25
- C. Setting up button manager 28
- (1) Windows XP 28
- (2) Windows 98/Me/2000 28
- (1) Connecting a USB cable 29
- 11. Interface 30
- 12. Moving 30
- [6] COPY PROCESS 31
- 2. Outline of print process 32
- 3. Actual print process 32
- About DC 5.2kV 33
- Process controlling 34
- [7] OPERATIONAL DESCRIPTIONS 35
- 34 6 285 36
- 3. Laser unit 37
- 4. Fuser section 37
- (1) Heat roller 38
- (2) Separator pawl 38
- (3) Thermal control 38
- (4) Fusing resistor 38
- 6. SPF/RSPF section 41
- A. Initial state 42
- B. Front copy 42
- C. Back copy 42
- 8. Shifter 43
- [8] DISASSEMBLY AND ASSEMBLY 44
- Example of NG 45
- Charger wire 47
- Protrusion 47
- 3. Optical section 48
- CCD core 49
- 4. Fusing section 50
- Heat roller disassembly 51
- Heater lamp 51
- C. Assembly procedure 57
- B. Disassembly procedure 58
- Multi unit 58
- 7. Rear frame section 60
- 8. Power section 61
- A. Sensor PWB 62
- B. Pickup solenoid 62
- C. Clutch 62
- (1) Remove the rear cabinet 65
- (2) Remove the RSPF 65
- B. Intermediate tray 66
- C. Upper cover 66
- D. Pickup unit 66
- F. Sensor PWB 67
- G. Pickup solenoid 67
- H. Clutch 67
- (1) Remove the clutch unit 67
- (2) Remove the clutch 67
- (1) Remove the pickup unit 68
- (1) Remove the parts 69
- (2) Remove the parts 70
- S. Paper exit roller 71
- T. Solenoid 72
- (1) Remove the reverse gate 72
- (2) Remove the solenoid 72
- [9] ADJUSTMENTS 73
- B. Image position adjustment 74
- ←/→] key 74
- (1) Lead edge adjustment 74
- B4 or 8 1/2″ × 14″ paper 75
- A4 size rear edge 75
- Scale image 75
- Paper rear edge 75
- White paper 76
- Test chart 76
- 3. High voltage adjustment 77
- 4. Duplex adjustment 77
- Document guide 78
- The trailing edge has a scale 78
- Table glass 78
- 6cm or more is required 79
- 2. Key rule 81
- 3. List of test commands 81
- Image loss, R = 4mm 106
- Chart back surface 110
- 5. Trouble codes 119
- [11] MAINTENANCE 122
- [12] USER PROGRAM 123
- B. Print mode 124
- [13] ELECTRICAL SECTION 126
- 2. Circuit descriptions 127
- (4) Reset circuit 132
- ASIC/CPU 133
- BA6920FP 134
- Tonner Motor Driver 134
- TD62064AF 135
- (10) OPE PWB 136
- (11) Carriage Unit 136
- (1) Noise filter circuit 136
- Voltage waveform 137
- [14] CIRCUIT DIAGRAM 138
- Serial EE-PROM 139
- MCU PWB (ASIC section) 140
- MCU PWB (Memory section) 142
- MCU PWB (Driver section 1) 144
- MCU PWB (Driver section 2) 146
- MCU PWB (Driver section 3) 148
- MCU PWB (IMC2 section 1/2) 152
- MCU PWB (Connector section 1) 156
- To Operational PWB 157
- To Mirror motor 157
- MCU PWB (Connector section 3) 158
- To 2nd. cassette 159
- MCU PWB (Modem I/F Connector) 161
- MCU PWB (Scanner I/F section) 162
- 2. OPERATION PWB 163
- To MCU PWB 165
- To Drum Initial Detector 165
- To FAX Key PWB 165
- POWER SUPPLY (120V/127V) 166
- (1) MCU SECTION (1/3) 168
- [15] FIRMWARE DOWNLOAD 171
- PROCEDURES 171
- 5. Installing procedures 175
- LEAD-FREE SOLDER 182
- CAUTION FOR BATTERY DISPOSAL 183
- Trademark acknowledgements 184
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