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Rev. 2.01
- 3 -
SRP-350/352plusA&C
4. Hardware ....................................................................................................................................................32
4-1 Wiring Diagram ......................................................................................................................................32
4-2 Block Diagram........................................................................................................................................33
4-3 Special Circuit Descriptions...................................................................................................................34
4-3-1 Power Circuit...................................................................................................................................34
4-3-2 RESET Circuit.................................................................................................................................35
4-3-3 Buzzer and Cash Drawer Circuits...................................................................................................36
4-3-4 I/F PBA Detect Block Diagram........................................................................................................37
4-3-5 RS-232C Communication Block Diagram.......................................................................................37
4-3-6 Parallel Communication Block Diagram .........................................................................................38
4-3-7 USB Communication Block Diagram ..............................................................................................38
4-3-8 DIP Switch Circuit ...........................................................................................................................39
4-3-9 Thermal Printer Head Circuit ..........................................................................................................40
5. Disassembly and Assembly .....................................................................................................................41
5-1 Case lower block ...................................................................................................................................41
5-2 Case Upper block ..................................................................................................................................43
5-3 Frame block ...........................................................................................................................................45
6. Adjustments and Maintenance.................................................................................................................48
6-1 Adjustment.............................................................................................................................................48
6-1-1 Remaining Roll Paper Adjustment..................................................................................................48
6-1-2 Paper Jam.......................................................................................................................................49
6-2 Maintenance ..........................................................................................................................................50
7. Troubleshooting ........................................................................................................................................51
7-1 Power Problem ......................................................................................................................................51
7-2 System Problem.....................................................................................................................................52
7-3 Panel PBA and Sensor Problem............................................................................................................53
7-4 Thermal Printer Head and Feed Motor Problem ...................................................................................54
7-5 Auto Cutter and Drawer Problem...........................................................................................................55
7-6 Dip S/W and I/F PBA Select Problem....................................................................................................56
7-7 RS-232C Serial Communication Problem .............................................................................................57
7-8 IEEE-1284 Parallel Communication Problem........................................................................................58
7-9 USB2.0 Communication Problem..........................................................................................................59