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Atari XMM801, Field Service Manual, Page: 42 / 49

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Atari XMM801 Field Service Manual Download Page 42

F. SERVICES FOR PRINTER MECHANISM 
 
The service instructions as described below are usefull for 
repairing in field and checking the performance of used 
Printer Mechanism. 
Before starting adjustments and replacements for printer 
mechanism, following materials, tools and gauges should be 
prepared. 

 

a. Materials 

 

Material 

Name 

Parts 

Remarks 

Adhesive 

Loctite

®

 

Screw 

Adhesive over ¼ of screw 
head and washer 

Grease 

Beacon 325 

Special 

 

Alcohole 

 

 

General purpose for 
cleaning 

Solder 

62Sn48Zn 

 

With flux 

 
 
 
 

 

b. Tools 
 

 

 
Solder Iron 

Disconnection and 
connection of 
wiring 

 
15 ~ 17 Watt 

Screw Drivers 
 Small 
 Medium 

 
 Screw 
 Screw 

 
+ bit for M2 ~ M2.6 
+ bit for M3 ~ M5 

 
 
 
 
c. Gauges 
 
Thickness Gauge 

0.05mm 
0.15mm 
0.5mm 
0.5mm 

  Paper & 
  sensor 

Available car use 

Tension Gauge 

 

Synchronous 
Belt 

0 ~ 500G 

 
 
 
 
 
 
 
 

-37- 

Summary of Contents for XMM801

Page 1: ......

Page 2: ...SERVICE MANUAL PERIPHERAL PRINTER XMM 801...

Page 3: ...iagram 4 6 ATARI SIO BUS Timing 5 Figure 8 Data Send to Printer 5 Figure 9 Data Receive from Printer 5 7 Functional Structure in Block Diagram 6 Figure 10 Basic Data Flow between the Hardwares 6 Figur...

Page 4: ...3 Figure 22 Connection Diagram 13 D TROUBLESHOOTING 14 1 Check Flows for Troubleshooting 15 Figure 23 Printer is totally out of work 15 Figure 24 Incorrect function of printer mechanism 16 Figure 25 P...

Page 5: ...ghly read This manual includes all the technical information that is necessary to be referred to for performance of service at the distributor s service organization except for the subjects that are c...

Page 6: ...Figure 3 Internal Structure 2...

Page 7: ...CPU and Control Circuit Block Main Control Board with CPU ATARI SIO Interface Board and Operation Key Board 3 Printer Mechanism Printer Head Head Carriage Mechanism Paper Feed with Tractor Mechanism a...

Page 8: ...ion of Circuits between Modules Figure 6 Connector Location on Blocks Please refer to the electric circuit diagram and P C B layouts 4 Interface Outline Figure 7 Interface Block Diagram BI DIRECTIONAL...

Page 9: ...ming The bus protocol specifies that all commands must Originate from the CPU and that peripherals will present data on the bus only when commanded to Figure 8 Data Send to Printer Figure 9 Data Recei...

Page 10: ...7 Functional Structure in Block Diagrams Figure 10 Basic Data Flow between the Hardwares Figure 11 Basic Data Flow with the Host Computer 6...

Page 11: ...8 XMM801 Timing chart at Power ON Figure 12 Timing Chart 7...

Page 12: ...CTRIC CIRCUIT INFORMATION Refer to Figure 6 for the connection between modules 1 Power Supply power supply assembly Figure 13 Circuit Diagram 220 240 Volt type Figure 14 Circuit Diagram 100 115 Volt t...

Page 13: ...Figure 15 Parts Layout and Pattern Schematic for filter P C Board 2 Operation Key Board switch P C B assembly Figure 16 Circuit Diagram Figure 17 Parts Layout and Pattern Schematic 9...

Page 14: ...Figure 18 Circuit Diagram 10...

Page 15: ...Figure 19 Parts Layout and Pattern Schematic 11...

Page 16: ...Figure 19 cont Parts Layout and Pattern Schematic 11a...

Page 17: ...4 ATARI SERIAL INPUT OUTPUT INTERFACE BOARD Figure 20 Circuit Diagram ATARI SIO INTERFACE Figure 21 Parts Layout and Pattern Schematic 12...

Page 18: ...5 Electric Circuit for Printer Mechanism Figure 22 Connection Diagram 13...

Page 19: ...t wrong Motor works only occasionally Refer to CHECK FLOW TROUBLE 2 Incorrect print Paper feed and head carriage are OK and print is available wrong font matrix Refer to CHECK FLOW TROUBLE 3 Feed Moto...

Page 20: ...Figure 23 TROUBLE 1 PRINTER IS TOTALLY OUT OF WORK 15...

Page 21: ...Figure 24 TROUBLE 2 INCORRECT FUNCTION OF PRINTER MECHANISM 16...

Page 22: ...Figure 25 TROUBLE 3 PRINT IS AVAILABLE BUT INCORRECT CHARACTER CON 9 10 Male Connectors on Atari Serial Input Output interface board 17...

Page 23: ...Figure 26 TROUBLE 4 FEED MOTOR IS NOT WORKING 18...

Page 24: ...ge of approx DC 11V The E leg of transistor T1 should show the voltage of about DC 19V The E leg of transistor T3 should show the voltage of about DC 1V REF 7 2 Check of AC Voltage while the printer i...

Page 25: ...Condition 1 Pin No LEVEL Pin No LEVEL Pin No LEVEL Pin No LEVEL 1 L 12 H 23 L 38 L 2 H 13 H 24 L 39 H 3 L 14 H 25 H 40 H 4 H 15 H 26 L 41 F 5 L 16 H 27 H PLS 42 43 H 5V 6 L 17 H 28 H 52 H PLS 7 H 18 L...

Page 26: ...show the step motor drive pulses refer to FIG i REF 7 11 Check for Dot Strobe While the head is moving by hand or by power Pin 20 of CPU 7811 should show the pulse refer to FIG k While the head is mo...

Page 27: ...rint Signal on CPU 7811 While printing Pin 9 thru 16 should show pulse wave refer to FIG n similar wave Pulse width is typically 600 sec REF 7 17 Check Print signals on the driver Connect plus lead of...

Page 28: ...2V DIV 500nS DIV 2V DIV 5 S DIV FIG a ALE SIGNAL FIG b AB15 2764 SIGNAL 2V DIV 1 S DIV 200mV DIV 50nS DIV FIG c RD SIGNAL FIG d CLOCK SIGNAL 7811 200mV DIV 200nS DIV 200mV DIV 1 S DIV FIG e WR SIGNAL...

Page 29: ...mV DIV 2mS DIV FIG g ADDRESS BUS SIGNAL FIG h CARRIAGE SIGNAL 2V DIV 2mS DIV 200mV DIV 1mS DIV FIG i CARRIAGE MOTOR FIG j k DOT STROBE 200mV 2V 2mS DIV 200mV 2V 500 S DIV FIG l m DATA IN SIGNAL FIG l...

Page 30: ...1V DIV 2mS DIV FIG n PRINT SIGNAL FIG o PRINT DRIVER 200mV DIV 5 S DIV 200mV DIV 10mS DIV FIG p I O M SIGNAL FIG q PAPER FEED SIGNAL 1V DIV 5mS DIV 200mV 2V 10mS DIV FIG r FEED MOTOR DRIVER FIG s 5V...

Page 31: ...ROM1 RO 2764 ROM 2764 X801 1D 1 IC1 I 74LS373 IC 74LS373P 1 IC2 I 74LS14 IC 74LS14 or 74HC14 1 IC3 4 I M54567 IC M54567P or M5248P 3 6 IC5 I M54523 IC M454523P or Equivalent 1 IC7 I 7805 IC 7805 3 Ter...

Page 32: ...28Z016EV Chemical Capacitor 2200uF 16V CE 04 1 C2 C 338Z035EV Chemical Capacitor 3300uF 35V CE 04 C7 C 106Z050EV Chemical Capacitor 10uF 50V CE 04 1 RA1 R 103M06AV Resistor Array 10k x 6 1 D8 D 1S2076...

Page 33: ...ACE PCB ASSEMBLY 2 3 CO 003 13P ATARI 13P Connector Male 003 13P LT 2 JAE or HON HAI T1 2 TR 2SC2308 Transistor 2SC2308 2 R2 3 R 104J25CH Resistor 100K 1 4W 5 4 6 7 R1 5 R 103J25CH Resistor 10k 1 4W 5...

Page 34: ...Thermo Shrink Tube 820F 9 L 90 1 2 16 CL SC0210F Coil Filter SC 02 10F or EC 2 1 2 17 XMM8 B010F Filter P C Board 1 6t V0 Material 1 Paper Epoxy Resin TU 04325H Thermo Shrink Tube 820F 4 L 25 1 2 18...

Page 35: ...ed 1 2 15 XMM8 E010 Lead Wire UL 1672 22AWG L 170 Black 1 2 15 XMM8 E110 Lead Wire UL 1672 22AWG L 180 Red 1 2 15 XMM8 E030 Lead Wire UL 1672 22AWG L 100 Black 1 CO 2302DS Terminal Connector 230 2DS 1...

Page 36: ...9 XMM8 M040HU Manual Knob 1 2 27 4023 P040 Steel Plate for Transformer 2 1 19 VP80 E010 Special Screw M4 Tapping Printer 3 2 21 S ISP4010FR Screw M4x10 PH SEMS Trans 2 2 22 S ZSP4006FR Screw M4x6 PH...

Page 37: ...312FR Screw M2 3x12 PTP 1 2 25 C80S P010 Shield Plate Power Supply Chassis 1 C80S E050 GND Wire UL 1737 16AWG L 90 1 Yellow Green Spiral C80S E040 GND Wire UL 1007 15AWG L 60 1 Yellow Green Spiral 1 S...

Page 38: ...een Spiral 1 S ISP3006FR Screw M3x6 PH SEMS Ground 1 PRINTER UNIT 1 15 P CE 80S G Needle Printer Model CE 80S G 8 1 or Model CE 80S G 8 RIBBON CARTRIDGE UNIT 1 16 IK SP80RC Ribbon Cartridge 1 ACCESSOR...

Page 39: ...34...

Page 40: ...35...

Page 41: ...36...

Page 42: ...hould be prepared a Materials Material Name Parts Remarks Adhesive Loctite Screw Adhesive over of screw head and washer Grease Beacon 325 Special Alcohole General purpose for cleaning Solder 62Sn48Zn...

Page 43: ...Head Screws 2 Take out the Flexible cable from connector 3 In case of assembling Do reverse way of 2 1 1 2 Adjustment of the Head after assembling 1 Loose two M3 Head Screws 2 Insert the H 35mm thick...

Page 44: ...om Ribbon Gear Ass y 3 In Case of Assembling Do revese way of 2 1 But Don t fix three screw completely keep a little bit loose for adjustment of tension of synchronous Belt 2 2 Adjustment and Lubricat...

Page 45: ...elt and check the tensions within 250g 300g If not within the specified value adjust the location of Ribbon Gear Ass y Then fix the three screws firmly 3 Replacement and Adjustment of Carriage Motor A...

Page 46: ...the Printer Head and adjust the carriage motor so sightly that backrash way not make even with minor force 2 Fix four M3x6 screws firmly 3 After above process check once again the backrash is minor en...

Page 47: ...ling do reverse way of 2 1 4 2 Adjustment of the Home position Switch 1 Lose slightly the M2 5x6 screw which fix the Home position Switch Ass y to the chassis as possible to move by finger 2 Insert th...

Page 48: ...g the screw as shown below 2 P G Lever also is removed accordingly with the Leaf Switch Ass y 3 Resolder the lead wires from Leaf Switch terminal 4 In case of assembling do reverse way of 3 2 1 5 2 Ad...

Page 49: ...kness gauge 6 Replacement of F P C Ass y 1 Remove the Flexible Cable of the Printer Head from F P C cable Ass y on Printer Head Holder 2 Remove two M2 5x6 screws and take out the F P C Cable Ass y fro...

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