OKIDATA EN3211 Technical Service Data Download | Manualshive

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Summary of Contents for EN3211

Page 1: ...015 COMPUTERFACTS Technical Service Data OKIDATA OKIMATE 20 MODEL EN3211 PRINTER FEATURES COMPLETE SCHEMATICS PRELIMINARY SERVICE CHECKS TROUBLESHOOTING TIPS EASY READ WAVEFORMS REPLACEMENT PARTS LISTS SEMICONDUCTOR CROSS REFERENCE ...

Page 2: ... Equipment REPLACEMENT PARTS AND DESCRIPTION F Fuse 2 Q1 Transistor Power Supply Board S i Br i dge Rect i f i er SW 0n 0ff Switch LI Coil R1 Resistor 5 1 Ohms 3W M7 Print Head 01 ROM IC Ml Line Feed Motor M5 Home Position Sensor M2 Carriage Motor SW3 Ribbon End Switch M4 Paper End Sensor SAMS Howard W Sams Co 4300 West 62nd Slreef P O Box 7092 Indianapolis Indiana 46206 U S A The listing of any a...

Page 3: ... holding motor assembly and remove assembly PAPER FEED MOTOR REMOVAL Remove Printer mechanism Disconnect Connec tor CN8 from Driver Board Remove two screws holding Paper Feed Motor and remove Motor BELT REMOVAL Remove cabinet top and Control Pane cover Remove Carriage Motor assembly Remove two springs from metal linkage going from Head Hold Solenoid to left belt gear one spring at each end of the ...

Page 4: ...N6 and T PRINTER WILL NOT PRINT BY COMPUTER COMMAND A Check Connector CN2 on Interface Board B Check settings of DIP Switches SW1 and SW2 on Interface Board See Switch Settings for a list of the various settings PRINTER CARRIAGE ASSEMBLY Q A Carriage asembly does not move Check carriage assembly belt gears and pu I leys B Check Connectors CN3 CN5 CN7 and CN9 C Check Carriage Motor M2 windings for ...

Page 5: ...PRELIMINARY SERVICE CHECKS Continued POWER SUPPLY BOARD Q1 SW2 8W1 CN2 x INTERFACE BOARD IV ...

Page 6: ...PRELIMINARY SERVICE CHECKS Continued N f Mi II I t I m mmBmu 7 f CN3 CNS CN5 CN5 v 7 4 5V 0V SB 0 1NFSNITY 5 5V 0V PIN 1 CN7 CN7 CN9 14 6V D m ZO w t L m DRIVER BOARD ...

Page 7: ...N U2 Spanish Characters 1 2 ASCI I Characters 1 17 1 CP1 Characters per inch 2 10 CPI Auto LF linefeed On 3 4 Auto LF Off 3 4 IBM Character Set 1 IBM Character Set 2 4 5 Draft Quality 6 6 Correspondence Quality OFF 2 3 MISCELLANEOUS ADJUSTMENTS POWER SUPPLY VOLTAGE ADJUSTMENT Connect input of a DC voltmeter to pin 1 of Connector CN9 on Driver Board Adjust Voltage Adjust Control VR for 14 4V PRINT ...

Page 8: ... ft sn en r s a V V V V V V ImAmj Mill K8 li a t i _i o cc 1 7 o o g si sTTT C r a o vHEIl J zi 5 5 01 UJ o fcl X fe D S DD D CD r Vn s 5 1 ill is o m z o i O I g Q CC o CD UJ o u_ a UJ s 0000flB p I HOODOO I 1 INTERCONNECTING DIAGRAM VP ...

Page 9: ...onnectors 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 cleaning 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 Disk Drive must be transported place an old disk in slot and close door during transport Store ...

Page 10: ... z O to 1 OH 7s m to o SAMS Howard W Sams Co fr i 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 as to the quality and suitability of such replacement part The numbers of these parts have been compiled from information furnished to Howa...

Page 11: ...A PHOTOFACT STANDARD NOTATION SCHEMATIC withhehubhi Howard W Sams Co 1987 OKIDATA MODEL EN3211 OKIMATE 20 ...

Page 12: ...S OVCB A PHOTOFACT STANDARD NOTATION SCHEMATIC with HEHffiEEBl Howard W Sams Co 1987 26 o D CO J s o D m m O 3 H m N5 O O 2 o ...

Page 13: ...HIC R5 R3 R2 DRIVER BOARD 4 B C A Howard W Sams WrwmrEKHI Phoio 14 4V 9 0V 5 0V A O D m i m 2 O 1 OH m 8 DRIVER BOARD 25 ...

Page 14: ... 0 GO o m m iV5 Q Pi m JO u A PHOTOFACT STANDARD NOTATION SCHEMATIC with QBHOoai Howard W Sams Co 1987 POWER SUPPLY ...

Page 15: ...T c M OU 8 Ji IT W J i S 5 r 0 M g frnvmrnmnrnrmi tn 6 Wr B V V 1 fs X d s fe I rwrwwwTT D o t CS Q I f ALTERNATE POWER SUPPLY A PHOTOFACT STANDARD NOTATION SCHEMATIC with NIMIIiimil Howard W Sams Cc 1987 ...

Page 16: ...A PHOTOFACT STANDARD NOTATION SCHEMATIC with S0335E 59 Howard W Sams Co 1987 ALTERNATE POWER SUPPLY ...

Page 17: ...nnnnnnrinnn 34 C t 22 35 C a 21 36 a 3 20 37C 119 38 C 118 39d 3 17 40 C 116 41 1 pis 42 a 14 43 d o 13 44 C 12 uuuuuuuuuuu 2 3 4 5 6 7 8 910 11 Q3 Q4 TOP VIEW IC 323 2C 327 EC 330 It 25 Si CJ30 6C 223 7CT 22 SET 321 9C 20 IOC 319 iter 3 IS 121 bl7 isc 1G ucj 315 Q2 TO 5 1 S 1DENT 1 VPP VCC 2 A12 3 A s i AS AS 5 AS A S M All 7 A3 SH 3 A3 A1C 9 A 3 s AO a 15 69 m 12 SI es 13 82 84 14 SM3 83 01 ROM ...

Page 18: ...3 to pin 5 of Connector CN9 Also connect a 30 ohms 10W load Resistor from pin 1 to pin 6 and a 10 ohms 10W load Resistor from pin 5 to pin 6 of Connector CN9 POWER SUPPLY DEAD Check Fuse F If fuse is open check for possible shorts at Bridge Rectifier S 1 1 and Oscillator Transistor 01 If fuse is good apply AC power and check for 120V AC at the AC input pins of SI1 If 120V AC is missing check Resis...

Page 19: ...4 4V is present check waveforms at pins B4 B8 B9 B10 A6 and A9 of Connector CN3 on Driver Board If waveforms are missing check inter face IC Q3 on Interface Board are present check waveform at Module HIC on Driver Board If good pin i 4V is missing check Module HIC I f waveforms pin 13 of waveform is waveform Is present check Switch Transistor TR2 Diodes D6 thru D17 and Driver Transistor Array Q1 C...

Page 20: ...good check CPU IC Q6 and Interface IC Q4 LINE DEFINITIONS AOTHRU A15 Address BitsOThru 15 ACK Acknowledge Input Data Received ALE Address Latch Enable BUSY Busy Off Line Data Entry Paper Feed Printing CE Chip Enable ROM Memory COLOR Color Sensor DO THRU D7 Data BitsOThru 7 DATA LATCH Data Latch DTR Data Terminal Ready 0 2 THRU DW5 Darkness Level Lines 2 Thru 5 FAULT Error State HEAD DRV Print Head...

Page 21: ...CD CD CD CD O O O O O UJ UJ LU UJ UJ in CD CD O O LU LU ECG7 ECG2 ECG8 ECG9 ECG1 ECG5 ECG5 ECG3 d oo 00 00 1 NO W0 CN NO NO On On i o o in on on on z a Olf k i in on in NO CN Q in in t in P CN 00 on v in in m UJ UJ UJ LlJ LU LU LU LU LU UJ LU UJ LU LU LU 1 1 1 h h _ f_ 1 fc 1 1 1 1 I 1 2 2 2 2 2 2 z Z 2 2 2 2 2 2 2 6 o X z z h UJ 2 2 2 DC a 2 t 2 2 oo a CL Q_ D_ 0_ r s CM in K COON 0 00 in r O CN ...

Page 22: ... O K i 1_ o 4 K c U 3 a c CD c JD o D ra O _ 03 10 o c _ u 0 CO 3 a a c CD o CN V D C Id ai o S_ 2 L 1 co in _ CD O CM O O CM OJ T CM in m CD CO CD CD z z z z UJ UJ c a _i _i U UJ CD CO CD in L0 5 o o 3 o O CD I l_ S a 3 I J 8 X n o o CD D 35 cfi a C 1 3 l l 5 JC a 8 CD X a T 3 1 z 3 ID l_ oc c CD c x CO o CO O m z o fo O H 7 til o 5 3 ...

Page 23: ...1KV 470 1KV ITEM RATING MFGR No PART No C 1 1000 25V 100 10V 330 25V C12 1000 25V 4 7 50V 10 50V CI 3 100 10V 47 35V 220 16V C14 330 25V 100 25y C15 47 10V C16 47 35V 100 25V i ITEM RATING MFGR No PART No C6 047 50V 001 1KV C7 1 50V 10 001 100V 047 100V C8 470 1KV 10 01 100V 1 100V C9 1 10 C10 001 10 001 047 10 COILS TRANSFORMER ITEM No FUNCTION MFGR PART No OTHER IDENTIFICATION NOTES LI L2 TR LI ...

Page 24: ... 4W Carbon Film 250 1 4W Carbon Fi Im 150 1 4W Carbon Film 1000 5 1 4W Carbon Fi Im 240 1 4W Carbon Film 2200 5 1 4W Carbon Film 10 5 1 4W Carbon Fi Im 39 5 1 4W Carbon Fi Im 51 5 1 4W Carbon Film 100 5 1 4W Carbon Fi Im 1000 5 1 4W Carbon Film 510 5 1 4W Carbon Fi Im 15K to 20K 5 1 4W Carbon Film 22K 1 4W Carbon Film 3000 5 1 4W Carbon Fi Im 2700 5 1 4W Carbon Film 3300 1 4W Carbon Fi Im 0 5600 5...

Page 25: ...st Act ing POWER SUPPLY 2 Amp 9 125VAC Fast Acti ng MISCELLANEOUS ITEM No PART NAME MFG8 PART No NOTES CHASSIS Ml M2 M3 M4 M5 M6 M7 Motor Motor Solenoid Sensor Sensor Sensor Print Head Line Feed Carri age Head Hold Paper End Home Position Color Ribbon SW3 Switch CONTROL PANEL Ribbon End Sensor SW1 SW2 Switch Switch INTERFACE BOARD Select Darkness SW1 SW2 XI Switch Switch Crystal POWER SUPPLY DIP D...

Page 26: ...15 P 15 L 35 P 3 16 P 16 P 16 P 36 L 17 P P 17 H 37 H 18 P 18 P 18 P 38 L 19 P 19 P 19 L 39 H 20 L 20 P 20 40 H PIN IC PIN IC PIN IC PIN IC PIN IC PIN IC NO 04 NO Q4 NO 04 NO 05 NO 08 NO 06 1 H 21 P 41 H 1 L 1 H 21 P 2 L 22 P 42 P 2 H 2 l i 22 P 3 L 23 P 43 P 3 L 3 H 23 P 4 H 24 p 44 L 4 H 4 H 24 P 5 H 25 P 5 H 5 H 25 P 6 L 26 P 5 L 6 H 26 P 7 H 27 P 7 L 7 H 27 P 8 H 28 P 8 L 8 H 28 P 9 L 29 P 9 H...

Page 27: ...CI 1 Characters i 2 1 17 1 CPI Characters per inch 2 1 2 10 CPI 2 3 4 Auto LF linefeed On 3 3 4 Auto LF Off 3 3 4 IBM Character Set 1 4 5 IBM Character Set 2 4 5 Draft Quality 6 6 Correspondence Quality 6 6 5 MISCELLANEOUS ADJUSTMENTS POWER SUPPLY VOLTAGE ADJUSTMENT Connect i nput Connector CN9 Adjust Control of a DC vo I tmeter to pin 1 of on Driver Board Adjust Voltage VR for 14 4V PRINT HEAD CL...

Page 28: ...ructions Supply voltage maintained as shown at input Controls adjusted for normal operation Terminal identification may not be found on unit Capacitors are 50 volts or less noted unless Electrolytic capacitors are 50 volts or less 20 unless noted Resistors are 1 2W or less unless noted Value in C used in some versions Measurements taken with switching as follows unless noted SW2 Darkness set to Ma...

Page 29: ... i i i I l T i l l I I i i i T i i i i i I r i i i i i I ElilOC0CSLJ Oli iO i yHQQlilOIB O Q O lU o o cMro mvoc o cN m oj 58QS8858855o5ooo558lj ji 8 5S8S 16 SS5K5555wU JSP59 c j cr oo to ur CM w 4 c so C3 Q UJ ro CM POWER SUPPLY BOARD 20 A Howard W Sams HgjJEBIHjffl photo ...

Page 30: ...i_5 O o rn r m ZO w ro 5 2 H m a o ui A Howard W Sams MhWIIIttMHa Photo POWER SUPPLY BOARD 21 ...

Page 31: ... i I i I I I I 1 i i O OO CQ L_ CO CQ 3CQU_U_Obu Q Q X CO li_ Q O 3 CO O CN N o _ SlM r iv ooooooooooooooQQljo So G O O SirtrcrQiceSarE toi h h S3 CJ j c en o 3 L S 3 00 m ft CM i V r l ftift r H V CD If 5 1 w CT oo CO LO CO CO Jgs SK sa ISff v iHHHi i c QQ LU u_ 3 n CM INTERFACE BOARD 22 A Howord W Sams Photo ...

Page 32: ...A Howard W Sam HIWUIIttMa Photo INTERFACE BOARD 23 ...

Page 33: ... S CHASSIS OVERALL VSEW 24 ...

Page 34: ...HIC R5 R3 R2 DRIVER BOARD 4 B C A Howard W Sams WrwmrEKHI Phoio 14 4V 9 0V 5 0V A O D m i m 2 O 1 OH m 8 DRIVER BOARD 25 ...

Page 35: ...S OVCB A PHOTOFACT STANDARD NOTATION SCHEMATIC with HEHffiEEBl Howard W Sams Co 1987 26 o D CO J s o D m m O 3 H m N5 O O 2 o ...

Page 36: ...move two screws holding motor assembly and remove assembly PAPER FEED MOTOR REMOVAL Remove Printer mechanism Disconnect Connec tor CN8 from Driver Board Remove two screws holding Paper Feed Motor and remove Motor BELT REMOVAL Remove cabinet top and Control Panel cover Remove Carriage Motor assembly Remove two springs from metal linkage going from Head Hold Solenoid to left belt gear one spring at ...

Page 37: ...ItJ II i i t 5 2 P o a o z CC u a BLOCK DIAGRAM 28 ...

Page 38: ...t to damage semiconductor devices 9 This Computer is equipped with a grounded three pronged AC plug This plug must fit in to a grounded AC power outlet Do not defeat the AC plug safety feature 10 Periodically examine the AC power cord for damaged or cracked insulation 11 The Computer cabinet is equipped with vents to prevent heat build up Never block cover or obstruct these vents 12 Instructions s...

Page 39: ... e _o cd 8 D 5 H oo I N O O oo tS D C T3 O D H2 o o o I O CO I 5 i c d S v Q s I o a r i On 1 5 Q o a Si 2 S g J S 5 Ja s S a a 5 r o o eg 5 3 3 a i r u H a w Sa o w 5 S I E e r 5 cu BE 0B a t 3 H O s e u n 3 o 2 S 3 c E D O D U 03 O o o N 3 a a v o c s x u X a r m s3n mBE T 1 i i 1 1 x T t u T Sti fi s Z 2 H 7 g g M h g 2 t go a pSs kd 5 SS B si 2 fc 115 IS Li f d K a i i 2 ranw5S a 3 3 U T3 O C ...

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