Related Manuals for Citizen CBM-710/720
Summary of Contents for Citizen CBM-710/720
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Page 1: Service Manual
Service Manual DOT MATRIX PRINTER CBM-710/ 720 MODEL Rev.1.00 Newly issued on Mar, 1989... -
Page 2: Table Of Contents
Chapter 1. Printer Disassembly and Assembly ... 1 1 How to Remove Upper Cover and Rear Cover ... 2 2 How to Remove The Printer Mechanism ... 3 3 How to Remove the Control Board ... 3 4 How to Remove the Power Board and AC power Unit ... 4 5 How to Remove the Auto Cutter (CBM-720 only) ... -
Page 3: Chapter 1. Printer Disassembly And Assembly
CBM-710/720 Service Manual Chapter 1 Printer Disassebly and Assembly... -
Page 4: How To Remove Upper Cover And Rear Cover
Unfasten 4 screws (M3 x 6) as shown in the figure and lift the upper cover upward, while disconnecting the connector. Unfasten 4 screws (M3 x 6) at both sides and remove the rear cover. Upper Cover Connector Rear Cover CBM-710/720 Service Manual... -
Page 5: How To Remove The Printer Mechanism
• Lift the printer mechanism in the arrow position for removal. Printer Mechanism How to Remove the Control Board • Remove the rear cover. • Disconnect each connector. • Unfasten 4 pieces of board mounting screws for removal of the control board. Control Board CBM-710/720 Service Manual... -
Page 6: How To Remove The Power Board And Ac Power Unit
• Unfasten 2 noise filter plate mounting screws (M3 x 6). • Unfasten 4 power transformer mounting screws (M4 x 6). • Disconnect the connector at the secondary side of the power transformer and take away the entire unit. Noise Filter Plate Inlet CBM-710/720 Service Manual Power Transformer Power Board... -
Page 7: How To Remove The Auto Cutter (Cbm-720 Only)
• Remove the upper cover and unfasten 2 tapping screws for removal of the operation panel board. • Remove the printer mechanism and unfasten a screw for removal of the PE sensor board assembled with the PE sensor holder. To remove the board only, remove the lug of the PE sensor holder. -
Page 8: Chapter 2 Circuit Description
CBM-710/720 Service Manual Chapter 2 Circuit Description... -
Page 9: Outline
CBM-710/720 Service Manual Outline A block diagram of this printer is shown in Fig. 1-1. It consists of the control circuit centered around CPU, ROM, RAM and peripheral circuits, interface circuit for interfacing with each host computer, operator panel circuit for operating switch input and LED display, printer mechanism, auto cutter, and power circuit for furnishing power supply to each part. -
Page 10: Cpu Peripheral Circuit
The IC12 is an IC for generating the power failure interrupt signal and reset signal. When the power supply voltage decreased due to power failure, etc. this IC performs the voltage inspection and stores all data in the CPU buffer into RAM while printing. Fig. 2-1 CPU and ROM/RAM Circuit CBM-710/720 Service Manual... - Page 11 (To interface circuit) Fig. 2-2 Power Failure Interrupt Circuit and Initial Resetting 4.5V Vcc (5V) (Power Failure Interrupt) Reset About 1ms 4.5V Power failure interrupt signal generated About 1ms (Data stored) Fig. 2-3 Timing Chart CBM-710/720 Service Manual Super Capacitor 0.047F...
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Page 12: Printer Control Circuit
DOT solenoid for two timing pulses and characters are printed. The paper is fed when the CPU port P33 becomes L in the specified timing. Color is changed when the CPU port P32 becomes L in the specified timing. Fig. 3-1. Printer Control Circuit CBM-710/720 Service Manual... -
Page 13: Cutter Control Circuit
Then stop the blade at the home position by making forward rotation again. 1) Full Cut Fig. 4-1 Cutter Control Circuit Normal Reverse Stop 2) Partial Cut 1 mS Fig. 4-2 Timing Chart CBM-710/720 Service Manual Stop 1 mS 15 mS... -
Page 14: Interface And Operation Panel
As shown in Fig. 5-1, the operation panel circuit has the on-line switch and line feed switch. Each switch is connected to CPU input ports and each LED is connected through the driver to CPU output ports. Operation Panel Circuit POWER LED1 ON-LINE LED2 ALARM LED3 ON-LINE FEED Fig. 5-1 Operation Panel Circuit CBM-710/720 Service Manual Control circuit... -
Page 15: Paper End Sensor Circuit
L. When paper becomes short, no light is reflected, causing the collector to go H. As a result, the CPU input port P40 becomes H, going into the paper end state. Paper End Sensor PHI 1 Control Circuit Fig. 6-1 Paper End Sensor Circuit CBM-710/720 Service Manual... -
Page 16: Parallel Interface Circuit
: Signal for resetting the printer (Negative logic) : Data request signal to be output at the end of BUSY signal (Negative logic) BUSY : Signal for indicating if the printer is in the busy state; it goes into the busy state for H. (Positive logic) FAULT : Signal to be output when the printer is in the abnormal state;... - Page 17 CBM-710/720 Service Manual Fig. 7-2. Parallel Interface Circuit...
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Page 18: Serial Interface Circuit
Positive/Negative Power Supply for RS-232C ±12 V power supply is required for obtaining RS-232C voltage level. In this printer, however, as IC MAX232C for interface is used, ±12 V is generated at the power circuit built in IC. Thus, no other power supply is required. - Page 19 CBM-710/720 Service Manual Fig. 8-1 Serial Interface Circuit Diagram...
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Page 20: Rs422A Interface Circuit
Communication is actually made through 2 lines although usually done through 4 lines (including GND FG). These 2 lines are used for both transmitting and receiving of data. TXD CONTROL Fig. 9-1 RS422A Interface Circuit CBM-710/720 Service Manual... -
Page 21: Power Supply Circuit
Power Circuit This power circuit supplies DC 5 V for the control circuit and DC 24 V for driving the printer mechanism. When the POWER switch is turned on, the AC voltage is applied to the transformer T after noise is eliminated by the capacitors C1 to C4 and noise filter NF. -
Page 22: Chapter 3 Auto Cutter
CBM-710/720 Service Manual Chapter 3 Auto Cutter... -
Page 23: Maintenance And Handling
However, the blade operates slow, oil is used up for cleaning, and disassembly, assembly and replacement are made, lubrication should be required. Gear pivot Lock level shaft Crank pin Movable blade sliding section Maltenp Brushing " " Mo grease " " " CBM-710/720 Service Manual... -
Page 24: Mechanism And Principle Of Operation
(see Fig. 3) and returned blade. It is turned on when the blade is at the home position and turned off when the blade returns. The position where the detector is turned off from on after starting of the movable blade is the turn-around position for partial cut. Cutter Gear Worm Motor Gear Fig. 1 CBM-710/720 Service Manual 1/74) - Page 25 At partial cut, the crank pins go into reverse at the moment they receive the switch signal and return to the home position. The movable blade moves 9 mm. Switch Fig. 3 Blade Crank Pin Fig. 4 Fig. 5 CBM-710/720 Service Manual...
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Page 26: Repairing And Troubleshooting
(4) Check Point and Method --- The check method to find out the cause if described. (5) Troubleshooting ------------- Repair the faulty portions according to the method described in this column. Check it, comparing with the content of this column. applied. CBM-710/720 Service Manual... - Page 27 CBM-710/720 Service Manual...
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Page 28: Disassembly And Assembly
Perform the disassembly in a reverse manner of the assembling procedure. Assembling Procedure Perform the assembly according to the assembling procedure as shown in the separate table. Numbers in Exploded View at the end of this chapter are used as drawing numbers. CBM-710/720 Service Manual... - Page 29 CBM-710/720 Service Manual...
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Page 30: Chapter 4 Circuit Diagram
CBM-710/720 Service Manual Chapter 4 Circuit Diagram... -
Page 31: Power Supply Circuit
CBM-710/720 Service Manual Fig. 4-1. Power Supply Circuit Diagram CBM710/720-001-00... -
Page 32: Noise Filter Circuit
CBM-710/720 Service Manual Fig. 4-2. Noise Filter Circuit Diagram CBM710/720-002-00 Fig. 4-3. Operation Panel circuit Diagram CBM710/720-003-00... -
Page 33: Op Junction Circuit
CBM-710/720 Service Manual Fig. 4-4. Paper End Sensor Circuit Diagram CBM710/720-004-00 Cord Assy CA5 PC Board PC710-06 Fig. 4-5. OP Junction Circuit Diagram CBM 710/720-005-00... -
Page 34: Parallel
4-6. Circuit Diagram: Parallel CBM710/720-006-00 12-33k IC137406 13, 18 BUSY FAULT RESET IC14 C103 LS240 14, 16, 30 8-1K 33, 19-29 9-10K HA13408 SOL 1 SOL 2 SOL 3 SOL 4 SOL 5 SOL 6 SOL 7 SOL 8 SOL 9 IC8LS04 15, 13 1, 8, 9, 10... -
Page 35: Rs232C
4-7. Circuit Diagram: RS232C C103 CBM710/720-007-00 CN2 CN3 FAULT RESET C. BUSY R C. BUSY R. BUSY 1/2PHCI CSOR T x D SW1-1 R42 100 C. RDR R. RXD C2310 IC14 – – C27 47 – – V– V– SOL 1 SOL 2 SOL 3 SOL 4... -
Page 36: Ps422A
4-8. Circuit Diagram: RS422A IC14 SN75113N ( CBM710/720-008-00 R35 4.7K IC15 SN75175N ( 4.7K – R37 4.7K R38 4.7K – HA13408 SOL 1 SOL 2 SOL 3 SOL 4 SOL 5 SOL 6 SOL 7 SOL 8 SOL 9 IC8LS04 15, 13 1, 8, 9, 10 19, TAB... -
Page 37: Chapter 5 Parts List
CBM-710/720 Service Manual Chapter 5 Parts List... -
Page 38: Exploded View
Printer DP612-DFC Printer DP617-DFC Printer DP614-DFC Auto Cutter AC-2 Auto Cutter AC-2F Bottom Plate Rubber Foot Top Case OP. Panel Overlay 1S CBM-710/720 Service Manual CBM-710/720 Q’ty Remarks 115V 220-240V 220-240V 115V only 220-240V only AW only Validation CBM720 only... -
Page 39: Parts List
Pan Head Screw M3 x 6 Pan Head Screw M3 x 10 Pan Head Screw/W M3 x 14 Pan Head Screw/TW M4 x 6 AC Cord AC Cord CBM-710/720 Service Manual CBM-710/720 Q’ty Remarks CBM710 only CBM720 only CBM710 only... - Page 40 CBM-710/720 Service Manual CBM-710,720 27-2 27-1 26-2 26-1...
- Page 41 CBM-710/720 Service Manual 20-1 CBM-710 18-1 18-2...
- Page 42 CBM-720 20-1 18-1 18-2 20-2 CBM-710/720 Service Manual...
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Page 43: Block Diagram
CA 1 Cord Assy CA 2 Cord Assy CA 3 Cord Assy CA 4 Cord Assy CA 5 Cord Assy CA 7 Cord Assy CA 8 CBM-710/720 Service Manual CBM-710/720 Q’ty Remarks 115V only 220-240V only 115V only 220-240V only CBM720... - Page 44 CBM-710/720 Service Manual BLOCK DIAGRAM...
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Page 45: Power Supply Unit
16MR-100 Connector 5273-04A Cord Assy CA 8 Heat Sink 25-0061 Insulation Sheet 2067A-5051 Fuse 5MF-3A Fuse Holder UF-0033#01 Pan Head Screw M3 x 8 Pan Head Screw M3 x 6 CBM-710/720 Service Manual CBM-710/720 Q’ty Remarks TR 1,2 TR 1,2... - Page 46 Cord assy CA 8 INSULATOR D1 - D4, D6 - D9 : GP15B D5 : 1S1588 ZD1 : RD5. 6EB2 PARTS POSITION : POWER SUPPLY UNIT CBM-710/720 Service Manual Screw M3x8/2 Screw M3x6/2 PC BOARD PC710-07A...
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Page 47: Noise Filter Unit
E 2122-725 Description Power Switch SF-W101A-01BB Fuse EAWK-500mA Fuse 5MF-1A Fuse Holder UF-0033#01 Noise Filter PLA3021A Film Capacitor CFX22E104M C. Capacitor DE7100F222MVA1-KC C. Capacitor DE1410E222MACT4-KD CBM-710/720 Service Manual CBM-710/720 Q’ty Remarks 220-240V only 100, 115V only 100, 115V only 220-240V only... - Page 48 FUSE HOLDER FUSE EAWK-500mA : 220-240V 5MF-1A : 100/115V CBM-710/720 Service Manual POWER SWITCH (MOUNTED ON BACK) PC BOARD PC710-08 C. CAPACITOR PARTS POSITION : NOISE FILTER UNIT...
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Page 49: Control Board Unit: Rs232C
IC (CMOS) MAX232CPE Tr. Array HA13408 Tr. Array STA403A Transistor 2SA1175HF Transistor 2SC2785HF Transistor 2SB731L Transistor 2SD809(1)L Zener Diode RD3. 0EL1 Diode IS1588 Photocupprer PC837 Re. Array SR-8RA-10K Re. Array SR-9RA-10K Re. Array SR-4RB-1K CBM-710/720 Service Manual CBM-710/720 Q’ty Remarks... - Page 50 35MR-47 El. Capacitor 50MR-1 My. Capacitor DMY21H473K El. Capacitor FS0H-473Z C. Capacitor DD804-63B471K50 C. Capacitor DD107-63R101J50 C. Capacitor DD806-63F103Z50 C. Capacitor DD804-63B102K50 C. Capacitor DD806-63F103K50 El. Capacitor 16MR-22 El. Capacitor 50MR-10 El. Capacitor 16MR-47 CBM-710/720 Service Manual CBM-710/720 Q’ty Remarks...
- Page 51 Pan Heat Screw M3 x 10 Connector 5267-05A-X Connector 25KC0050-120 Connector 5267-17A-X Connector 5267-09A-X Connector 5267-07A-X Connector 5268-02A-X Connector 5267-04A-X Connector 5267-03A-X CBM-710/720 Service Manual CBM-710/720 Q’ty Remarks for TA 1 for TA 1 for TA 1 for CN 2...
- Page 52 CBM-710/720 Service Manual Jump Wire Setting : RS232C with Back Up (B) without Back Up (N) Jumper 1 Open C-N Short PARTS POSITION : CONTROL BOARD UNIT RS232C Jumper 2 C-B Short C-N Short...
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Page 53: Control Board Unit: Parallel
SR-9RA-10K Re. Array SR-4RB-1K Re. Array SR-12RA-3.3K Re. Array SR-10RA-1K Resistor 1/4W 1.5K F Resistor 1/4W 2.7K F Resistor 1/4W 1K J Resistor 1/4W 2.2K J Resistor 1/4W 3.3K J Resistor 1/4W 47K J CBM-710/720 Service Manual CBM-710/720 Q’ty Remarks... - Page 54 35MR-47 El. Capacitor 50MR-1 My. Capacitor DMY21H473K El. Capacitor FSOH-473Z C. Capacitor DD804-63B471K50 C. Capacitor DD107-63R101J50 C. Capacitor DD806-63F103Z50 C. Capacitor DD804-63B102K50 C. Capacitor DD804-63B471K50 C. Capacitor DD306-63F104Z12 Crystal CSA7.37MT40 Coil SN-3-200 Buzzer MEB-12-5 CBM-710/720 Service Manual CBM-710/720 Q’ty Remarks...
- Page 55 Heat Sink 50-0032 Pan Head Screw M3 x 8 Connector 5267-05A-X Connector MRD-36SB-130 Connector 5267-17A-X Connector 5267-09A-X Connector 5267-07A-X Connector 5268-02A-X Connector 5267-04A-X Connector 5267-03A-X CBM-710/720 Service Manual CBM-710/720 Q’ty Remarks for TA 1 for TA 1 for TA 1...
- Page 56 CBM-710/720 Service Manual Jump Wire Setting : PARALLEL with Back Up (B) without Back Up (N) Jumper 1 Open C-N Short PARTS POSITION : CONTROL BOARD UNIT PARALLEL Jumper 2 C-B Short C-N Short...
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Page 57: Control Board Unit: Rs422A
2SD809(1)L Zener Diode RD3. 0EL1 Re. Array SR-8RA-10K Re. Array SR-9RA-10K Re. Array SR-4RB-1K Resistor 1/4W 1.5K F Resistor 1/4W 2.7K F Resistor 1/4W 1K J Resistor 1/4W 2.2K J Resistor 1/4W 3.3K J CBM-710/720 Service Manual CBM-710/720 Q’ty Remarks... - Page 58 DD306-63F104Z12 El. Capacitor 16MR-100 El. Capacitor 35MR-47 El. Capacitor 50MR-1 My. Capacitor DMY21H473K El. Capacitor FSOH-473Z C. Capacitor DD804-63B471K50 C. Capacitor DD107-63R101J50 C. Capacitor DD806-63F103Z50 C. Capacitor DD804-63B102K50 C. Capacitor DD804-63B101K50 C. Capacitor DD306-63F104Z12 CBM-710/720 Service Manual CBM-710/720 Q’ty Remarks...
- Page 59 Pan Head Screw M3 x 8 Connector 5267-05A-X Connector JEY9S-1A1A-90 Connector 5267-17A-X Connector 5267-09A-X Connector 5267-07A-X Connector 5268-02A-X Connector 5267-04A-X Connector 5267-03A-X Connector Cover Pan Head Screw M3 x 10 CBM-710/720 Service Manual CBM-710/720 Q’ty Remarks for TA 1 for TA 1 for TA 1...
- Page 60 CBM-710/720 Service Manual Jump Wire Setting : RS422A with Back Up (B) without Back Up (N) Jumper 1 Open C-N Short PARTS POSITION : CONTROL BOARD UNIT RS422A Jumper 2 C-B Short C-N Short...
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Page 61: Op Panel/Pe Detector/Op Junction Unit
Cord assy CA 5 ** PE DETECTOR UNIT** P.E. PCB Assy Photointerrupter GP2S05 PE Holder Cord Assy CA 7 ** OPERATION PANEL JUNCTION UNIT ** O.P. PCB Assy Connector 5267-07A-X Cord assy CA 5 CBM-710/720 Service Manual CBM-710/720 Q’ty Remarks... - Page 62 CBM-710/720 Service Manual LED (GREEN) LED (RED) TACT SWITCH CORD ASSY CA 5 PC BOARD PC710-04 PARTS POSITION : OPERATION PANEL UNIT...
- Page 63 CBM-710/720 Service Manual PHOTOINTERRUPTER GR2S05 PC BOARD PC710-05 CORD ASSY CA 7 PARTS POSITION : PE DETECTOR UNIT...
- Page 64 CBM-710/720 Service Manual 5267-07A PC BOARD PC710-06 CORD ASSY CA 5 OP Junction Block...
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Page 65: Auto Cutter
M2 x 8 Wire Band T18S Blade Spring Guide Plate Blade Blade Cover Frame Shift Blade (Full Cut Type) Spacer Hook R Bracket R Hook L Bracket L CBM-710/720 Service Manual AC-2/AC-3 Q’ty Remarks AC-2 AC-3 DC 24V DC 12V... - Page 66 CBM-710/720 Service Manual AC-2 10-2 10-3 10-1 21, 22...
- Page 67 CBM-710/720 Service Manual AC-3 10-4 10-2 10-3 10-1 21, 22...
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Page 68: Winder
Motor Gear Cord Assy (25-0082) Motor Cover W Gear Idle Gear E Ring AW Cover AW Top Cover Bottom Plate Rear Shaft Rear Frange Paper Guide Pan Head Screw M3 x 6 Wire Band T18S CBM-710/720 Service Manual AW-2 Q’ty Remarks... - Page 69 CBM-710/720 Service Manual AW-2...