Atari XMM801 Field Service Manual
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Atari XMM801 Field Service Manual

Atari XMM801 Field Service Manual

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Summary of Contents for Atari XMM801

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

  • Page 3: Table Of Contents

    7. Functional Structure in Block Diagram ....6 Figure 10. Basic Data Flow between the Hardwares Figure 11. Basic Data Flow with the Host Computer 8. XMM801 Timing Chart at Power ON ....7 Figure 12. Timing Chart ......7 C. ELECTRIC CIRCUIT INFORMATION ......8 1.
  • Page 4 Figure 19. Parts Layout and Pattern Schematic ..11 4. ATARI SERIAL Input/Output Interface Board ..12 Figure 20. Circuit Board ......12 Figure 21. Parts Layout Schematic ....12 5. Electric Circuit for Printer Mechanism .... 13 Figure 22. Connection Diagram ..... 13 D.

  • Page 5: General

    G E N E R A L Information for Repair annd Maintenance of PERIPHERAL PRINTER Before starting repair and/or check of the printer by referring to this information, the Operation Manual of the Printer should be thoroughly 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 covered by the Operation Manual.

  • Page 6: Figure 3. Internal Structure

    Figure 3. Internal Structure...

  • Page 7: Basic Structure

    Secondary - DC 5 Volt for TTL Logics. DC 19 Volt for Printer Mechanism. 2. 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 and Ribbon Driver Mechanism are in unit.

  • Page 8: Connection Of Circuits, Between Modules

    4. Connection 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 SERIAL...

  • Page 9: Atari Sio Bus Timing

    5. ATARI SIO BUS Timing 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 Receive (from Printer)

  • Page 10: Functional Structure In Block Diagram

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

  • Page 11: Xmm801 Timing Chart At Power On

    8. XMM801 Timing chart at Power ON Figure 12. Timing Chart...

  • Page 12: Electric Circuit Information

    C. ELECTRIC 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 type...

  • Page 13: Operation Keyboard

    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...

  • Page 14: Figure 18. Circuit Diagram

    Figure 18. Circuit Diagram -10-...

  • Page 15: Figure 19. Parts Layout And Pattern Schematic

    Figure 19. Parts Layout and Pattern Schematic -11-...
  • Page 16 Figure 19. (cont.) Parts Layout and Pattern Schematic -11a-...

  • Page 17: Atari Serial Input/Output Interface Board

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

  • Page 18: Electric Circuit For Printer Mechanism

    5. Electric Circuit for Printer Mechanism Figure 22. Connection Diagram -13-...

  • Page 19: Troubleshooting

    D. TROUBLESHOOTING If the printer fails to operate properly, please solve the problem using this table. SYMPTOM REFERENCE Printer is totally out of work. It does not operate when Refer to CHECK FLOW, TROUBLE-1 Power switch is turned ON: Incorrect function on Printer. Motors are working but wrong.
  • 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: Characters

    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: Check Points For Repair

    2. Check Points for Repair The followings are reflected to the markings on the check flow charts on paragraph l. In this description, there are the explanations as refer to FIG. a,b,c,..showing the tested wave form on scope that can be compared with the same index in paragraph 3.”Typical wave form of signals”.
  • Page 25 -Signal CLK, on Pin 31 of the main CPU (7811) should show the wave, refer to FIG. d. -Signal ALE, on pin 46 of main CPU (7811) should show the pulse wave, refer to FIG.a. -Signal WR, on Pin 45 of main CPU (7811) should show the pulse wave, refer to FIG.e-similar wave, while the printer is running.
  • Page 26 CONDITION 1 : While Printer is stopped after power on and home positioning of Head and sound of Buzzer. Without the Host and paper. Al Dip Switches on Centronics Parallel Interface Board are on. REF.7-7 Check signals to the Carriage Motor. -At power-on Time if Head is located at home position, Pin 3,6,11,14 of IC6 should show just few pulses, refer to FIG.h just few pulses then stop.
  • Page 27 REF.7-15 Check pin status on signal connector CON 9, 10 (Pin Assignment) 3. DATA INPUT (to Host Computer) 4. GND 5. DATA OUT (from Host Computer) 6. GND 7. COMMAND (from Host Computer) Low when Host Computer is sending a command frame to the printer 10.

  • Page 28: Typical Wave Form Of Signals

    3. Typical Wave Form of Signals 2V/DIV 500nS/DIV 2V/DIV 5µS/DIV FIG.a ALE SIGNAL FIG.b AB15(2764) SIGNAL 2V/DIV 1µS/DIV 200mV/DIV 50nS/DIV FIG.c RD SIGNAL FIG.d CLOCK SIGNAL (7811) 200mV/DIV 200nS/DIV 200mV/DIV 1µS/DIV FIG.e WR SIGNAL FIG.f DATA & ADDR BUS SIGNAL -23-...
  • Page 29 200mV/DIV 1µS/DIV 200mV/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 500µS/DIV FIG.l,m DATA IN SIGNAL FIG.l,m DATA OUT SIGNAL -24-...
  • Page 30 200mV/DIV 2mS/DIV 1V/DIV 2mS/DIV FIG.n PRINT SIGNAL FIG.o PRINT DRIVER 200mV/DIV 5µS/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 and RESET(8155) -25-...

  • Page 31: Parts List

    E. PARTS LIST The codes on the column of INDEX on the list are the guide to locate the parts on the exploded view drawing included in this paragraph. To locate the electric and/or electronic parts on the boards, see the markings on the column of INDEX referred to in the schematics in Paragraph C.
  • Page 32 P A R T S L I S T INDEX PART NUMBER DESCRIPTION Q’TY R14,15 R-223J25CH Resistor, 22K 1/4W ±5% R-512J25CH Resistor, 5k1 1/4W±5% R-101J25CH Resistor, 100 1/4W ±5% R-102J25CH Resistor, 1K 1/4W ±5% R2~4 R-103J25CH Resistor, 10K 1/4W ±5% C20,22 C-104Z050CV Ceramic Capacitor, 0.luF/50V C10,11 C-330Z050CV...
  • Page 33 Lead Wire, L-56 Ø 0.12x12 Brown TU-007010E Tube, Ø 0.7x12 Green C80S-E030 Lead Wire, L-50 Ø 0.12x12 Green ATARI INTERFACE PCB ASSEMBLY CO-003-13P ATARI 13P Connector, Male 003-13P-LT (JAE or HON HAI) T1,2 TR-2SC2308 Transistor, 2SC2308 R2,3 R-104J25CH Resistor, 100K 1/4W ±5%...
  • Page 34 Fuse, lA 61M TU-05025H Thermo Shrink Tube 820F Ø 5 L-25 XMM8-L040 Fuse Label (250V lA) 2-13 SW-T127A Power Switch, T-127 ( ATARI Color) 2-14 L880-M030UK Cord Cover, UL-94V3 Type (ATARI Color) 2-15 XMM8-E010 Lead Wire, 22AWG UL-1672 L-170 (Black) TU-09090H Thermo Shrink Tube, 820F Ø...
  • Page 35 Thermo Shrink Tube 820F Ø 4 L-25 XMM8-L050 Fuse Label (250V T 400mA) 2-13 SW-T822 Power Switch, T-822 (Black) 2-14 L880-M030HN Cord Cover, UL-94HB (ATARI Color) 2-15 XMM8-E020 Lead Wire, UL-1672 22AWG L-170 (Red) 2-15 XMM8-E010 Lead Wire, UL-1672 22AWG L-170 (Black) 2-15...
  • Page 36 P A R T S L I S T INDEX PART NUMBER DESCRIPTION Q’TY XMM8-L010 Brand Plate XMM8-L030 Serial Plate (220V) CASE ASSEMBLY UL TYPE B XMM8-M010UK Upper Case "UL-94V0" XMM8-M02AUK Bottom Case "UL-94V0" 4023-I010 Rubber Foot, Ø 16x3t XMM8-M030HN Printer Cover XMM8-L010 Brand Plate...
  • Page 37 P A R T S L I S T INDEX PART NUMBER DESCRIPTION Q’TY ASSEMBLY, EUROPEAN TYPE A AV80-I010 Rubber Foot for Printer Head XMM8-M040HU Manual Knob 2-27 4023-P040 Steel Plate for Transformer 1-19 VP80-E010 Special Screw, M4 Tapping (Printer) 2-21 S+ISP4010FR Screw, M4x10 +PH SEMS (Trans) 2-22 S+ZSP4006FR...
  • Page 38 RIBBON CARTRIDGE UNIT 1-16 IK-SP80RC Ribbon Cartridge ACCESSORY XMM8-A050 Instruction Booklet 1-17 XMM8-P030 Paper Tray CO-D03-13S ATARI 13P Connector Cable D03-13S-090 (1m) PACKING SET XMM8-A010 Individual Box XMM8-A020 Master Carton XMM8-A030 Styrofoam Packing Set XMM8-A040 Vinyl Bag (for Body Unit)
  • Page 39 -34-...
  • Page 40 -35-...
  • Page 41 -36-...

  • Page 42: Services For Printer Mechanism

    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.
  • Page 43 1. Adjustment & Replacement of the printer head 1-1 Disassemble and assemble 1) Remove two M3 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 thickness gauge between Ribbon Guide and Head Nose.
  • Page 44 3) Check the gap between Ribbon Guide and Head Nose again, by inserting above thickness gauge. The gauge should be inserted smoothly. If not, back to 2. 2. Adjustment & Replacement of Ribbon Gear Ass'y 2-1 Disassemble and assemble 1) Remove three screws which fix the Ribbon Gear Assy on the chassis as M2.5 x 6 2) Take out the synchronous belt from Ribbon Gear Ass'y...
  • Page 45 • Check the three screws which fix Ribbon Gear Ass'y on the chassis are slightly loosed. • Push the middle of Synchronous Belt by Tension gauge until slightly touching to other side of Synchronous Belt, and check the tensions within 250g ~ 300g.
  • Page 46 3) In case of assembling, Do reverse way of 2), 1) 3-2 Adjustment of Carriage Motor Assembly 1) Check the backrash of the mesh part between pinion gear of the carriage motor and right pulley by jogging horizontally the Printer Head, and adjust the carriage motor so sightly that backrash way not make even with minor force.
  • Page 47 4. Adjustment and Replacement of Home position Switch Ass'y 4-1 Disassemble and Assemble 1) Remove the M2.5x6 screw which fix the Home position Switch Ass'y to the chassis. 2) Resold the lead wires from Home position Switch terminals. 3) In case of assembling, 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...
  • Page 48 4) After fix the M2.5x6 screw firmly, check once more the location of left end of printed character which is within the specification. 5. Replacement and Adjustment of paper End Sensor 5-1 Disassemble and assemble 1) Take out the Leaf Switch Ass'y and M2.3x5 screw by loosing the screw as shown below.
  • Page 49 2) Insert the paper to print out and check the gap of the contact points of the Leaf Switch shall be more than 0.5mm (measured with thickness 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.

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