Epson RX-80 - Impact Printer Technical Service Data Download Page 17 | Manualshive

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Summary of Contents for RX-80 - Impact Printer

Page 1: ...ill CP9 EPSON 8 MODEL RX 80 i TECHNICAL SERVICE DATA FOR YOUR PRINTER ...

Page 2: ...IC PC305C Regulator IC 78L05A Bridge Rectifier 3B4B41 Bridge Rectifier 1B4B1 Zener Diode 4 8V H25B 2 Choke Coil 200 iH Choke Coil Power Transformer F1 X502040020 H1 F401 500000 M1 F31 601 4000 M2 F316016000 C1 X202596820 C2 X202396820 C3 X202592220 C4 X2001 43310 Q23 Q24 Q25 X300101502 Q26 X302251600 Q28 X301 077251 10C X4401 93050 SR1 X440078051 DB1 X340400060 DB2 X340400030 ZD4 X330000059 L1 Y43...

Page 3: ... sweep time to 5mSec Set the scope to trigger on the positive edge of the waveform Hold down the LF button while turning the Printer On to activate the self printing test mode Loosen the screw holding the PTS Position Timing Signal Sensor Board on the right side of the Timing Belt Motor M2 Use a screwdriver in the slot provided to adjust the PTS Sensor Board for a pulse width of approximately 1 67...

Page 4: ...ding ground strip Slide mechanism forward and remove from unit PRINTHEAD REMOVAL Slide Printhead to left of carriage to allow access to Print head Cable Disconnect Printhead Cable by pulling the plastic tab attached to bottom of Printhead Cable Slide Printhead to center position for access to Head Lock Lever Rotate lever left to release Printhead Lift Printhead straight up to remove from Carriage ...

Page 5: ... 24 VDC is present at pin 24 of CN4 unplug Connector CN4 and check the resistance between pin 24 and pins 19 thru 22 and 25 thru 29 of Connector CN4 Each solenoid should measure ap proximately 22 ohms If the solenoid circuit is open replace the print head assembly b If the print head checks good check Connector CN4 If Connector CN4 is good replace the Control Board PRINT HEAD HAS MISSING DOTS a Re...

Page 6: ... 7VAC s la 120VAC c4 Q C2 64_6JCN1 56 DfllJ MICROPROCESSOR L2 1b O SR C5 78 C3 P Q24 IOC IDA CONTROL BOARD RXMB 987654321 PRINTER MECHANISM HOME POSITION SENSOR I PRIN n HEAD 06666600 CN1 AC SWITCH BOARD 006000 3 6 F1 K g LI MASTER POWER 3 H 826 7 FUNCTION SWITCH BOARD LF FF LI NE FE ED Sb 7b TIMIN6 SENSOR BELT MOTOR 30 120VAC o O m I w x z ...

Page 7: ...PRELIMINARY SERVICE CHECKS Continued A F1 1 L1 jgk in POWER SUPPLY CHASSIS TOP VIEW ...

Page 8: ...PRELIMINARY SERVICE CHECKS Continued o o m X z ds o MAIN BOARD VIS ...

Page 9: ...accessible connectors and contacts DISK DRIVES Clean the read write heads of the Disk Drives about once a month or after 100 hours usage Use only an approved head clean ing kit Handle carefully to preserve proper disk head alignment A sudden bump or jolt to the Disk Drives can knock the disk head out of alignment If the disk drive must be transported place an old disk in slot and close door during...

Page 10: ... o o m r w X z co o SAMS Howard W Sams Co Inc tm 4300 West 62nd Street P O Box 7092 Indianapolis Indiana 46206 U S A The listing of any available replacement part herein does not constitute in any case a recommendation warranty or guaranty by Howard W Sams Co Inc as to the quality and suitability of such replacement part The numbers of these parts have been compiled from information furnished to H...

Page 11: ...08 BUSY AOC TnTT J WOO PART OF 3300 SRM1 m S OVOU SLCTIN NOTEi V V0LTA6E VARIES A PHOTOFACT STANDARD NOTATION SCHEMATIC w th BB3QDZS1 Howard W Sams Co Inc 1985 SN74LS02N PART OF 9B SN74LS05N PART OF 4D 5N7407N PART 0F8D PART OF SN74LS74AN 9C 4 3V 4 1V FLIP FLOP 5 0V 00 L V SN7417N PART 0F3B H 2 13 1 CNS 99 READY SfN 1 m SN7407N T s PART 0F8D s Zo H C2 11 0V D97 5 on LINE 6RN 4 0 3 6V _fN5 220 5 0V...

Page 12: ...RINT HEAD CT SOLENOID 24 2 NOTEi V VOLTAGE VARIES FOR TERMINAL GUIDES AND NOTES SEE PAGE 2 9 CABLING HEAVY LINES REDUCE USE OF MULTIPLE LINES LINE IDENTIFICATION ASSIGNED FOR REFERENCE A PHOTOFACT STANDARD NOTATION SCHEMATIC w th HEHEZEl Howard W Sams Co Inc 1985 PHOTO CIRCUITRACE SCHEMATIC CIRCUITRACE l1 o CO o o rn m 3 i 5 X z 00 o 30 ...

Page 13: ...14 PA6E 2 D82 OBI R5 33 R4 33 2SC2516 02S RE6 2SA101SY 025 RE6 DRIVER R71 W 2 2M R13 3000 LI Jt tL aSOURCE C2 SSOOjJF J T113 SV T SJSOURI 1 C21 1 C22l C2sl C2 1 C2sl C26l C2 l IX 11 IT IT IT IT IT IT CN5 S SOURCE s ovou SOURCE 096 POVEI SRN R9E 220 ESOURCE iMH i CN5 _Q 4 SV SOURCE ryiMfiies SOURCE A PHOTOFACT STANDARD NOTATION SCHEMATIC with BEHQa Howard W Sams Co Inc 1985 ...

Page 14: ...er outlet Do not defeat the AC plug safety feature 10 Periodically examine the AC power cord for damaged or cracked insulation 11 The Printer cabinet is equipped with vents to prevent heat build up Never block cover or obstruct these vents 12 Instructions should be given especially to children that objects should not be dropped or pushed into the vents of the cabinet This could cause shock or equi...

Page 15: ...y to receive data from the computer when all three given LED s are On The printer is Off Line when only the top green LED is On Pressing the On Line button once puts the printer Off Line and pressing it again puts the printer back On Line The printer must be Off Line for the FF Form Feed and LF Line Feed buttons to function TEST EQUIPMENT Test Equipment listed by Manufacturer illustrates typical o...

Page 16: ...ion at pin 1 of Connector CN1 If the STROBE pulses are good at pin 1 of IC 9B check for pulses on the BUSY line pin 11 of Connector CN1 and on the ACK line pin 10 of Connector CN1 If the BUSY pulses are missing check for pulses at pin 8 of Flip Flop IC 9C If there are no pulses at pin 8 check IC 9C by substitution If the pulses are present at pin 8 of IC 9C check for pulses at pin 10 of IC 9B If t...

Page 17: ... 2B check Driver Transistors Q14 through Q17 If the tran sistors check good check IC 2B TIMING BELT CARRIAGE MOTOR MALFUNCTIONING The Timing Belt Motor M2 does not move the print head back and forth Turn the Printer Off and move the print head to the center of the carriage Turn the power back On and see if the print head moves If the print head does not move check for 23 4V at the collector of Swi...

Page 18: ... in the Calibrate position and the scope input was set for DC coupling on zero reference waveforms Switch to AC coupling input to view waveforms after DC reference is measured when necessary Each waveform is 7cm wide with the DC reference voltage given at the bottom line of each waveform The sweep time is in iSec per cm and peak to peak voltage reading are given at the end of each waveform Switche...

Page 19: ... 6 9 TRACTOR FEED 10 Courtesy of Epson America Inc O x z oo o TRACTOR FEED 23 ...

Page 20: ...3 2 3 1 5 7 CTP 3x8 HN0 4 PRINTER MECHANISM 22 Courtesy of Epson America Inc o D CO 3 o o m m tj r w 5 x z do o PRINTER MECHANISM 11 ...

Page 21: ...CS 2 5 x 4 2 m o m oo o PRINTER MECHANISM 12 Courtesy of Epson America Inc PRINTER MECHANISM 21 ...

Page 22: ...IOC 1 L 1 21 P 2 41 H 61 P 1 L P 1 5 2 H 22 P 2 42 H 62 P 2 L H 2 3 H 23 P 1 43 H 63 H 3 H L 4 L 24 L 44 P 64 H 4 H H 5 H 25 H 45 P 1 5 L L 1 6 H 26 P 46 L 6 L H 2 7 P 2 27 P 47 P 1 7 L L 8 P 1 28 H 48 P 8 L L 9 P 2 29 P 49 P 1 9 H H 10 P 1 30 P 50 P 10 L H 11 P 4 31 P 51 P 11 L L 12 P 4 32 L 52 P 12 L L 13 P 4 33 L 53 P 13 H H 14 P 4 34 H 54 P 14 H H 15 P 4 35 55 P 15 16 H 36 H 56 P 16 17 P 1 37 ...

Page 23: ...P H 2 L 13 H H H P H 2 H 14 H H H H H H 15 16 NOTE Logic probe readings taken with Printer On Line and in self test mode unless otherwise noted Switches SW1 and SW2 set as shown on schematic Logic Probe Display L Low H High P Probe Open No lights On 1 Probe indicates H when printhead is at home position 2 Probe indicates L when printhead is at home position 3 No indication when printhead is at hom...

Page 24: ...v CO X CO CO CO CO h H CM OV VO VO o o o o ix O I _i _i _i _i o a Z OC in m m k m r m ov ov ov ov x x O O O T in in in in mm m 00 CM CM CM CM mm ov m m m ix rx x X x X o m I CO a Ul UJ UJ UJ UJ UJ UJ UJ Ul Ul Ul Ul Ul Ul Ul Ul Ul UJ Ul UJ UJ UJ Ul Ul UJ Ul H h t 1 H 1 i t i h i y v t i t i i i i 1 h 1 1 h W z z z z z z z z z z z z z z Z Z z z z z z z z z z z o O o 52 S z CM CM o o rx rx m m X z co...

Page 25: ... _i _i _l _j _i _i r r i r r r 6 tc z f IL X N o o o ooooo o o E O O O O t fa o o o cm ia r cm o in a to in r r r r o vo fa i o o t 5f O o o o o Ol 00 o ta o o o oo fa o o o o o o r o o ooooo in cr CO GO 00 CO MM O CD 03 fa fa fa ta in in in in o o o o o ooooo O O fa fa fa ta CM CM O O CM CM CM CM CM vo Tf XX X X X X X X X in CM CM _ ai or vo zzn z z UJ 1 1 r K10 z fa z a d 00 CO CM l Q CD cm r CM...

Page 26: ...10883320 X1 10891 520 X1 10881820 1 Contains ten 10 ea 3300 10 1 8W 2 Contains eight 8 ea 3300 10 1 8W 3 Contains nine 9 ea 1500 10 1 8W 4 Contains eight 8 ea 1800 10 1 8W COILS RF IF ITEM No FUNCTION MFGR PART No LI L1A Choke Line Choke Y435201003 TRANSFORMER Power ITEM No FUNCTION MFGR PART No L2 Choke Y435201002 s o PS X z do o ITEM No REPLACEMENT DATA MFGR PART No NOTES PRI SEC 1 SEC 2 T1 120V...

Page 27: ...otor F316016000 Paper Feed M2 Motor F3 160 14000 Carriage Drive M3 Buzzer SW1 Switch X620400850 Printer Status SWiA Switch Power SW2 Switch X620400910 Line Feed Status SW8 Switch On Line SW9 Switch Line Feed SW10 Switch Form Feed SW99 Sw i tch A1 70202501 Paper End CABINETS CABINET PARTS When ordering specify model chassis color ITEM Lower Case Upper Case Pr i nter Cover PART No Y435001 001 Y43500...

Page 28: ...35 0V o rn X z 00 o SW9 LOCATED OTHER SIDE OF BOARD A Howard W Sam BEEfflBEl Photo CONTROL BOARD 19 ...

Page 29: ...POWER SUPPLY A Howard W Sam HEBD i Photo 20 ...

Page 30: ...CS 2 5 x 4 2 m o m oo o PRINTER MECHANISM 12 Courtesy of Epson America Inc PRINTER MECHANISM 21 ...

Page 31: ...3 2 3 1 5 7 CTP 3x8 HN0 4 PRINTER MECHANISM 22 Courtesy of Epson America Inc o D CO 3 o o m m tj r w 5 x z do o PRINTER MECHANISM 11 ...

Page 32: ... 6 9 TRACTOR FEED 10 Courtesy of Epson America Inc O x z oo o TRACTOR FEED 23 ...

Page 33: ...ImAmJ v ittmfflwl I edh n I IhJssbb I z g tO v co 1 it f CD O JE m Ji i l J i CO I J CO ffil CM B CD 1B9 MAIN BOARD A Howard W Sams Eifl3EEll Photo 7 4 ...

Page 34: ...m in in m in in in o tm m r tcMm iA t n tvo mcMCM o co o o o o o rn X z 00 a a vo t oo o cm m in vo r co o o cm rn m vo i co o o cm m m m m m in m vovomm cM mcMcM cMcMCMm rnm t mm trninin OlLui SuJOc c m UjaLLU UJULJLJUIlJLLl U U U U U U tx ljJXO OaOU UJ o a u a O a o CD cm o cm in in vo r oo o o cm in m ZK cMin i mvocotn cM cMinTtmvpt opc2 mcmcmcmcmcm OOQQQQQQQQJJO C OC C C 0 c c 0 C 0 0 0 0 C 0 ...

Page 35: ...MAIN BOARD A Howard W Sams HEgffiESBl Phaf 26 ...

Page 36: ...IAIN BOARD 27 ...

Page 37: ...ome Position Sensor Board Use a small flat screwdriver in the notch provided to adjust the Home Position Sensor Board Move the notch to the left to move the margin left or move the notch to the right to move the margin right Install the Ribbon Cartridge and per form the self printing test to test the margin position Re peat this test until printing begins at the desired position on the paper When ...

Page 38: ...I BOTTOM VIEW Q20 Q21 Q25 BOTTOM VIEW 11 I I I I I I I 12 3 4 5 6 7 8 9 RM3 RM4 RM6 FRONT VIEW IDENT I I I I I I I I I I 12 3 4 5 6 7 8 9 10 RM5 FRONT VIEW lfc 014 2dV 313 3C 112 4C bn 5CZ bio iC 39 7c P8 IB 2B 3B 4D 5D 7D 8D 9B 9D TOP VIEW IC 3 64 2C 3163 3C 3 62 4C Z361 5C 360 6C 1359 IC 358 8CZ 3157 9C 356 10CZ 33 55 11C p54 ucz 3 53 13 C 352 14 3 P51 15C 350 lftC P49 uc 48 18 a 19C 347 a 46 20...

Page 39: ...RINT HEAD CT SOLENOID 24 2 NOTEi V VOLTAGE VARIES FOR TERMINAL GUIDES AND NOTES SEE PAGE 2 9 CABLING HEAVY LINES REDUCE USE OF MULTIPLE LINES LINE IDENTIFICATION ASSIGNED FOR REFERENCE A PHOTOFACT STANDARD NOTATION SCHEMATIC w th HEHEZEl Howard W Sams Co Inc 1985 PHOTO CIRCUITRACE SCHEMATIC CIRCUITRACE l1 o CO o o rn m 3 i 5 X z 00 o 30 ...

Page 40: ...eference voltage given at the bottom line of each waveform Time in fis per cm given with p p reading at the end of each waveform Item numbers in rectangles appear in the alignment adjust ment instructions Supply voltage maintained as shown at input Controls adjusted for normal operation Terminal identification may not be found on unit Resistors are V2W or less 5 unless noted Value in used in some ...

Page 41: ...Slide mechanism forward and remove from unit PRINTHEAD REMOVAL Slide Printhead to left of carriage to allow access to Print head Cable Disconnect Printhead Cable by pulling the plastic tab attached to bottom of Printhead Cable Slide Printhead to center position for access to Head Lock Lever Rotate lever left to release Printhead Lift Printhead straight up to remove from Carriage assembly HOME POSI...

Page 42: ... Platen A 5 2 F303006000 Carriage Sub Assembly 5 3 F303005010 Head Lock Lever 5 4 F303005020 Head Lock Lever Spring 5 5 F303001010 Carriage Shaft A REF PART NO NO DESCRIPTION 5 6 F303001020 Carriage Shaft B 5 7 F303001030 Head Adjust Lever 5 8 F316001010 Scale 5 9 F303001060 Scale Spring L 5 10 F303001070 Scale Spring R 5 11 F303001092 Ribbon Mask 5 12 F303001 100 Head Sitting Plate 6 1 F303007011...

Page 43: ...a x O O 3 _i a x 5 Id x a z SK 5 a a a z a z tN 1 a a a z O CL Z _ O F 0 i t CO li O u_ D D CDtE CD C n O O u _o oj i n S Ol CO 3 5 g o U U 1 _tn uj r u C 1 O F 0 a u u li LL t 0 O u 0 U a r TJ a t c O CL i S s Q 00 a 1 cu CN 1 o o 00 D c C a a c a CL 0 Q E o CO L 3 o 0 0 0 T3 u O O D O O c F u co E n c CD CO c l 1 V 1 r O u _ n _ O 00 1 2 c F b 0 a CO Q on 1 u 1 0 C CO a P a to a F u CL c V O U 0...

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