Citizen CBM-710 User Manual

DOT MATRIX PRINTERMODEL CBM-710/720Rev.1.00 Newly issued on Mar, 1989Service Manual

CBM-710/720 Service Manual82. CPU Peripheral Circuits1) CPU and ROM/RAMThe CPU M50734SP has a external memory type. Lower 8-bit address is fetched via

CBM-710/720 Service Manual9As can be seen in the timing chart, it detects that Vcc decreased up to about 4.5 V for power failure andgenerates the powe

CBM-710/720 Service Manual103. Printer Control Circuit1) When L is output to the CPU port P31, the motor rotates and a timing pulse appears at the DP

CBM-710/720 Service Manual114. Cutter Control CircuitCutter SideFig. 4-1 Cutter Control CircuitThe cutter control circuit is as shown in Fig. 4-1. In

CBM-710/720 Service Manual125. Interface with Operation PanelAs shown in Fig. 5-1, the operation panel circuit has the on-line switch and line feed sw

CBM-710/720 Service Manual136. Paper End Sensor CircuitFig. 6-1 shows the paper end sensor circuit. The reflection type photo-interrupter is used as a

CBM-710/720 Service Manual147. Parallel Interface CircuitThis circuit conforms to the standard interface. Description will be made for each signal of

CBM-710/720 Service Manual15Fig. 7-2. Parallel Interface CircuitVccR1533kIC107406IC137406RA5CN316PCN2IC150734SP12-33kΩ

CBM-710/720 Service Manual168. Serial Interface CircuitAs the serial interface specification, RS-232C and 20 mA current loop can be switched by the sl

CBM-710/720 Service Manual17Fig. 8-1 Serial Interface Circuit Diagram

iCONTENTSChapter 1. Printer Disassembly and Assembly ... 11 How to

CBM-710/720 Service Manual189. RS422A Interface CircuitThe RS422A interface circuit diagram is shown in Fig. 9-1. As can be seen in the figure, when T

CBM-710/720 Service Manual1910. Power CircuitThis power circuit supplies DC 5 V for the control circuit and DC 24 V for driving the printer mechanism.

CBM-710/720 Service Manual20Chapter 3Auto Cutter

CBM-710/720 Service Manual211. Maintenance and Handling1) Precautions for Handling(1) Precautions for useDo not cut the paper other than the specified

CBM-710/720 Service Manual222. Mechanism and Principle of Operation1) Outline of MechanismThe AC-2 and AC-3 are designed as the DP-505 and DP-600 smal

CBM-710/720 Service Manual232)-3 Movable blade mechanismThe movable blade is changed into a linear motion by the crank pins and starts cutting the rec

CBM-710/720 Service Manual243. Repairing (Troubleshooting)For troubleshooting, the repairing method will be explained by classifying the items as show

CBM-710/720 Service Manual251. The motordoes notrotate.2. The recordingpaper cannotbe cut.Phenomenon Condition Cause Check Point and Method Troublesho

CBM-710/720 Service Manual264. Disassembly/Assembly1) Disassembling ProcedurePerform the disassembly in a reverse manner of the assembling procedure.2

CBM-710/720 Service Manual27

CBM-710/720 Service Manual1Chapter 1Printer Disassebly and Assembly

CBM-710/720 Service Manual28Chapter 4Circuit Diagram

CBM-710/720 Service Manual29Fig. 4-1. Power Supply Circuit Diagram CBM710/720-001-00

CBM-710/720 Service Manual30Fig. 4-2. Noise Filter Circuit Diagram CBM710/720-002-00Fig. 4-3. Operation Panel circuit Diagram CBM710/720-003-00

CBM-710/720 Service Manual31Fig. 4-4. Paper End Sensor Circuit Diagram CBM710/720-004-00Fig. 4-5. OP Junction Circuit Diagram CBM 710/720-005-00Cord A

32CN2 CN316PRA512-33kΩ13, 18121011321311465273+5VPEACK→BUSYFAULTSTBRESET2345678914, 16, 3033, 19-291714613712411531, 8, 9, 101521615141312111098SOL

3314613712411531, 8, 9, 10152PrinterCN417P123456789154672PrinterPanelOpe.WinderCutterCN59PCN67PCN72PCN84P211234126CN2 CN3VccVccVccVPVccVccVPVcc22VccVc

3414613712411531, 8, 9, 10152PrinterCN417P123456789154672PrinterPanelOpe.WinderCN59PCN57PCN72P21CutterCN84P1234CN2IC14 SN75113N ( )Vcc 1860.8

CBM-710/720 Service Manual35Chapter 5Parts List

CBM-710/720 Service Manual36PARTS LIST1. Exploded View CBM-710/720Ref. No.12345678-11211131415161718-1-21920-1-221222324Parts No. Description Q’ty Re

CBM-710/720 Service Manual37PARTS LIST CBM-710/720Ref. No.2526-1-227-1-2-3303132333435373840Parts No. Description Q’ty RemarksE 4000-530E 6204-590E 6

CBM-710/720 Service Manual21. How to the Upper Cover and Rear Cover1) Unfasten 4 screws (M3 x 6) as shown in the figure and lift the upper cover upwar

CBM-710/720 Service Manual38CBM-710,72027-227-126-226-12334242533

CBM-710/720 Service Manual39CBM-71020-14343253233718-118-21928-13435381773161330301130121635141533343835213422

CBM-710/720 Service Manual40CBM-7203720-120-243432518-118-21932328-134351738173130113012163013635383514153334213422

CBM-710/720 Service Manual41PARTS LIST2. Block Diagram CBM-710/720Ref. No.CA 1234578Parts No. Description Q’ty RemarksE 6100-530E 6100-535E 4004-180E

CBM-710/720 Service Manual42BLOCK DIAGRAM

CBM-710/720 Service Manual43PARTS LIST4. Power Supply Unit CBM-710/720Ref. No.IC 1TR 123D 1-46-95ZDR12345C1234567CN 13F1Parts No. Description Q’ty Re

CBM-710/720 Service Manual44PC BOARDPC710-07AD1 - D4, D6 - D9 : GP15BD5 : 1S1588ZD1 : RD5. 6EB2PARTS POSITION : POWER SUPPLY UNITINSULATORScrew M3x8/2

CBM-710/720 Service Manual45PARTS LIST4. Noise Filter Unit CBM-710/720Ref. No.SW 1F1NFC 1,23,43,4Parts No. Description Q’ty RemarksE 4003-495E 4005-4

CBM-710/720 Service Manual46PARTS POSITION : NOISE FILTER UNITFUSE HOLDERFUSEEAWK-500mA : 220-240V5MF-1A : 100/115VPOWER SWITCH(MOUNTED ON BACK)PC BOA

CBM-710/720 Service Manual47PARTS LIST5. Control Board Assy : RS232C CBM-710/720Ref. No.IC 12345678, 13910111214, 15TA 12TR 12-58,912,13101-1036,107,

CBM-710/720 Service Manual32. How to Remove the Printer Mechanism• Remove the upper cover.• Unfasten 2 screws (M3 x 14) as shown inthe figure.• Lift t

CBM-710/720 Service Manual48PARTS LISTCONTROL BOARD ASSY : RS232C CBM-710/720Ref. No.R123,40,10145,7,1532,43102-10468,17,41429,11,1819,24-2631,33-363

CBM-710/720 Service Manual49PARTS LISTCONTROL BOARD ASSY : RS232C CBM-710/720Ref. No.CP 1,5,811,13OSCL 1,2BZDS 1,2SW 1CN 12456789Parts No. Descriptio

CBM-710/720 Service Manual50with Back Up (B) without Back Up (N)Jumper 1 Open C-N ShortJumper 2C-B Short C-N ShortJump Wire Setting : RS232CPARTS POSI

CBM-710/720 Service Manual51PARTS LIST6. Control Board Assy : Parallel CBM-710/720Ref. No.IC 12345,14678910,131112TA 12TR 12-5,89101-1036,107,11ZD 1R

CBM-710/720 Service Manual52PARTS LISTCONTROL BOARD ASSY : PARALLEL CBM-710/720Ref. No.R 8,179,11,1819,24-2631101213141620,2127,2822,2329,30C 1,3,192

CBM-710/720 Service Manual53PARTS LISTCONTROL BOARD ASSY : PARALLEL CBM-710/720Ref. No.DS 1CN 12456789Parts No. Description Q’ty RemarksE 5103-350E 4

CBM-710/720 Service Manual54with Back Up (B) without Back Up (N)Jumper 1 Open C-N ShortJumper 2C-B Short C-N ShortJump Wire Setting : PARALLELPARTS PO

CBM-710/720 Service Manual55PARTS LIST7. Control Board Assy : RS422A CBM-710/720Ref. No.IC 12345678,1391011121415TA 12TR 12-58,9101-1036,107,11ZDRA 1

CBM-710/720 Service Manual56PARTS LISTCONTROL BOARD ASSY : RS422A CBM-710/720Ref. No.R 6,3538-408,179,1118,1924-2631101213141620,2127,2822,2329,3034,

CBM-710/720 Service Manual57PARTS LISTControl Board Assy : RS422A CBM-710/720Ref. No.OSC 1L 1,2BZDS 1,2CN 12456789Parts No. Description Q’ty RemarksE

CBM-710/720 Service Manual44. How to Remove the Power Board and AC Power Unit1) How to Remove the Power Board• Disconnect 2 connectors.• Unfasten 2 sc

CBM-710/720 Service Manual58with Back Up (B) without Back Up (N)Jumper 1Open C-N ShortJumper 2 C-B Short C-N ShortJump Wire Setting : RS422APARTS POSI

CBM-710/720 Service Manual59PARTS LIST8. OPERATION PANEL UNIT/PE DETECTOR UNIT/OPERATION PANEL JUNCTION UNITCBM-710/720Ref. No.D 1,23R 1,23SW 1,2CA 5P

CBM-710/720 Service Manual60PARTS POSITION : OPERATION PANEL UNITLED (GREEN)LED (RED)TACT SWITCHCORD ASSY CA 5PC BOARD PC710-04

CBM-710/720 Service Manual61PARTS POSITION : PE DETECTOR UNITPHOTOINTERRUPTERGR2S05CORD ASSY CA 7PC BOARD PC710-05

CBM-710/720 Service Manual62OP Junction Block5267-07ACORD ASSY CA 5PC BOARD PC710-06

CBM-710/720 Service Manual63PARTS LIST9. Auto Cutter AC-2/AC-3Ref. No.1234567891010-110-210-310-4111213141516171819202122Parts No. DescriptionQ’tyRem

CBM-710/720 Service Manual64AC-2123756410-2131619151621010-110-3118917186321, 221420

CBM-710/720 Service Manual65AC-3123110-4151610-213210-31010-1118917181421, 223612

CBM-710/720 Service Manual66PARTS LIST10. Winder AW-2Ref. No.122-1-2-33678910111213141516Parts No. Description Q’ty RemarksE 8500-010E 8510-010E 8017

CBM-710/720 Service Manual67AW-21014121315911536822-32-12-27151611

CBM-710/720 Service Manual55. How to Remove the Auto Cutter Unit (720)• Remove the printer mechanism from the main body.• Remove 2 E3’s as shown in th

CBM-710/720 Service Manual6Chapter 2Circuit Description

CBM-710/720 Service Manual71. OutlineA block diagram of this printer is shown in Fig. 1-1. It consists of the control circuit centered around CPU, ROM