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DR-120XA
(LX-224C/D)
DL-220BAGY
(LX-224I)
DR-320A
(LX-224B)
SEP. 1995
DR-120XA
INDEX
R

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Summary of Contents for Casio DR-120XA

  • Page 1 (without price) DR-120XA (LX-224C/D) DL-220BAGY (LX-224I) DR-320A (LX-224B) SEP. 1995 DR-120XA INDEX...
  • Page 2: Table Of Contents

    CONTENTS SPECIFICATIONS ......................1 BLOCK DIAGRAM ......................1 CPU (MN15418YCY) PIN FUNCTION ................2 DIAGNOSTIC......................... 3 TROUBLESHOOTING ....................4 DISASSEMBLY VIEW ....................5 SCHEMATIC DIAGRAM....................6 PARTS LIST ........................ 10...
  • Page 3: Specifications

    1. SPECIFICATIONS Roll paper size : Width: 57 ~ 58 mm Ink ribbon : Red/Black: RB-02 Green/Black: GB-02 Power source : AC 100, 120, 220 or 240 (±10 V), 50/60 Hz • Refer to the operation manual for other specifications. 2.
  • Page 4: Cpu (Mn15418Ycy) Pin Function

    3. CPU (MN158418YCY) PIN FUNCTION Pin No. Signal I / O Function 1~7, 64 P00~P13 Common signal for keyboard 8~12 P20~P22, P32, P33 Key signal from keyboard Timing pulse signal from printer DEBIN Reset pulse (Not used) IRQCNT Auxiliary timing (VDD) Motor control signal Ribbon shift signal for printer 18~30...
  • Page 5: Diagnostic

    4. DIAGNOSTICS MODE SWITCHES OPERATION DISPLAY PRINT STEP NOTE 100° ÷ ◊/# – -88.8888888888 The character with -88.888888888 [88.8888888888] "[ ]" will be printed by red ink. • 0.1234567 M 0.123456 0.1234 M– 0.124 ÷ MU/MD 0.12 5/4 ADDX M◊ 0.123 5/4 ADDX 0.123...
  • Page 6: Troubleshooting

    5. TROUBLESHOOTING Trouble Cause Checkpoint Note 1) Does not work • Defective power transformer Secondary voltage VDD, VSS, VM, VF1, and at all. of transformer VF2 are OK? Waveforms of each • Defective LSI 2) No display. • No voltage at VF1, VF2 VF1, VF2 Signal D1 ~ Check the pulse signals...
  • Page 7: Disassembly View

    6. DISASSEMBLY VIEW Connection Voltage Power Cord Transformer 100V Projection side Yellow Black Black 120V Projection side Blue Marking side Black 220V Brown Black Blue White 240V Brown Black Blue...
  • Page 8: Schematic Diagram

    SCHEMATIC DIAGRAM 7-1. Main board — 6 —...
  • Page 9 7-2. Keyboard FEED – TIME MU/MD M– — 7 —...
  • Page 10 7-3. Slide Switch Board IT– ADDX ADD+ MODE SWITCH — 8 —...
  • Page 11 7-4. Printer Pin Arrangement Diagram Connection Pin No. Pin No. Connection RD terminal Character selective magnet column No.1 (Not used) Character selective magnet column No.1 Notes: 1. Column numbers match the physical arrange- ment of the columns on the print wheels. 2.
  • Page 12: Parts List

    MTZJ5.6CT-77-T D9~11 2301 0054 Diode 1S2472-T-77-T D13, 14 2301 0101 Diode 1S2473-T-77-T 2 20 The following elecrical parts will be not supplied from CASIO. C1, 8 Semiconductive capacitor 0.1uF, 50V, +20/-80% Electrolytic capacitor 330uF, 50V 1pF, 50V, ±10% Ceramic capacitor...
  • Page 13 6053 5820 Roll arm R-V985B (Gray) P310269-2 6053 9050 Roll arm L-V298C (White) P310270-3 6053 9060 Roll arm R-V298C (White) P310269-3 A : DR-120XA Notes: N – New parts Essential R – A : B : DR-320A M – Minimum order/supply quantity...
  • Page 14 8-11-10, Nishi-Shinjuku Shinjuku-ku, Tokyo 160, Japan Telephone: 03-3347-4926...

This manual is also suitable for:

Dl-220bagyDr-320a