SERVICE MANUAL
Contents
1. ce i a I ce I 4 c 4 7 an 15273 n n 7 6 966 1586 ce 1574 P o js 1 I 3 13 29 z 1332 x 4206 TIE ae 1506 a Pan E n 53 U cm 5902 XB 5902 N c 9 e o 9 a a 2 Main PCB IC Location 1 TEHKAN 12 MAIN PCB PARTS LIST A Main PCB Parts List 1 B Main PCB Parts List 2 IC Transistor amp Diode 5902 XB ET0025 3K 9U 2 6L ET1000 6 7 5 ET1002 8C 8U 2W 3U 5V ET1004 7C 5L 1A 3S 3H 3F 4H 4F 4U 6W 7F 9K 9W ET1008 3N ET1010 7E 9498 ET1011 2P 2F ET1014 3R ET1020 3P ET1027 4R ET1030 5 6D 78 SU 4P SW 7V 7W 8W 9E 9L 7U ET1032 2A 28 2E 3M 3P 7F 8D 9T 3T 3V 3W 4S 4T 4W 5P 5R 5S 6B ET1074 Item No Description ni Quantity TET Description 2SC2320 Transistor LED LED 151588 100 Capacitor Paing 16V 1 OOOuF Chemical 16V 100uF 3 b C21 C25 C26 16V 10uF ka C27 C28 C30 C31 C39 C43 C3 42V 50pF Ceramic 37 ETR2320 ELD0003 ED1588 5902 XA 7425 74LS00 74LS02 74LS04 74LS08 74LS10 74LS11 74LS14 74LS20 74LS27 74LS32. T S II g IO13u05 MS HOIN 5132 6816 8 ketar 616 1 I 3 13 346 6 1 4 2 1 e 295 63 63 punos punos 0 22 AZI j ana 12 NNI AS AS A S HOLINON ATddNS UYAMOd dSH NSJELYOIN de 9 9 1 XA TOW NSJETYDFN HOLIMS XOIX LUVLS 28 9 75 LHVIS 28 9 YAAWIdT I 232 13 TANVd 0122 600 9 0 NOSII gt w e bd vo e o N N N N e N N N TOS 39 1 3 18 22 TEHKAN 15 CRT SCHEMATIC DIAGRAM 6101 25 710 VIDEO AMP R Cc O 4 S Ca o cz2 T atoz 8 2 630 54 lt CO wCa waAnmQ A 618 1 46 PROOUCT CMICAL AKA AMO of Cham PARTS SMNI I FOR a Radiation POOTLCT Ou FOR ACPLACE ENT PURPOSES USL Oo Y 3 6 TYPE PARTS Mewa m ted PARIS aust aas 23200 2 2 8 2SC7i0 ls i RO x VIGEO BUFFER 4 i 55 2SC7IO VIDEO AMPIG aa gt 320 555 5 R04 5 R127 39 AVCATESLCCANT AU 4 POUR LES A PALIO CONTAC LES AUA 53 A
3. TEHKAN CONTENTS 1 SPECIRICAMION hates 1 2 0 a 2 3 CAUTIONS 4 panties NE 3 4 H WTOPIMY LL R AA 5 5 HOWTO REMOVE MAIN PCB 6 Er ee 5 7 7 MAINTENANCE 10 8 TROUBLE SHOOTING 11 9 ILLUSTRATED PARTS LIST 13 10 SCHEMATIC DIAGRAM 18 11 MAIN PCB LOCATION 19 12 MAIN PCB PARTSILIST 20 13 POSITION OF CONNECTOR 21 4 WIRING 25 15 CRT SCHEMATIC DIAGRAM 23 18 MOCE DIAGRAM u av ui EG ARES 24 _1 SPECIFICATION e Power supply 2 20 v AC e Power consumption 100W e Weight 209 1 2 Ibs inch w 3734 TEHKAN 2 WARNING A WARNING A Use of non TEHKAN parts or modification of any TEHKAN game circuitry may adversely affect the safety of your game and may cause injury to you and your players This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause inter ference to r
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5. CLECT Ott met OLI CT U ROLLS CY v lt AS POICCTOG WEFAN CONT 10 53 OCS RAvORS A Ores LE CAS O ux 9 LES PCES PCOS CCS 0226 CATALOGUE OK 8 22K Q v CN IO 34 RED loi MR LA GREEN 516 SP w 558 7 UE B m ELACK zo 3 cA 8 4 WHITE sYNC 2 Sip LD Mta Xo 25 7 2 VICED 5 6 2 ANG 8425 U 390 22 sr E m2 i QIC5 0 VIOEO AMP 8 24 290 G GAIN 9oOuCT ICTY 6 Tet PARTS OCHTWKO 67 324000 And OVE Tuf CH HATIC MAGRA aM SAFCTY COMICAL 805 FOR 8 PURPOSES UK Om Y j E QIC6 2 o FEES 8 GAIN 2 3amQ TYPE PANIE WON m fo Paalis 580 tasr KRATKI OC HOCNTW UCS PAA LA IOC TOmend Y Aurea 3 OU 31080 6 LK SOG MA OC VON AC APASAT OCZ 6 3 3 3 0 SCCumTE Cams CAS O un LES MECC SAOFAI Ooms Uf CATALOGUE Of PECES sein 4 0 m LeS vr QSO 2SC2 55 POWER MAIN RAOIATCR A a KC 320769 102 3 Ru 2 01v oP m ASSY PCB MAIN ACICOV 1 Rev 1 680 Soc
6. TEHKAN 4 HOW TO PLAY e1PLAYER PLAYER V5 COMPUTER e2PLAYERS PLAYER VS OPPONENT WITH ADDITIONAL TIME AVAILABLE THRU BUY IN SYSTEM MORE COIN MORE TIME IstPLAYER 2ndPLAYER Red team Blue team J J wv Operate J bd marked player with CONTROLBALL for offensive strategy Defensive player closest to player with ball will be controlled by CONTROLBALL eRotate CONTROLBALL in direction you want to pass or kick ball by pressing KICK BUTTON Distance of ball travel will be controlled by the CONTROLBALL S speed of rotation 2 EV Goalie is controlled by defensive player s CONTROLBALL when goalie appears on screen Protect your net keep opponent from scoring IEHKAN 5 HOW TO REMOVE MAIN PCB eBy removing the screws 4 places extract the main PCB baseplate By removing the 4 place extract the main PCB Switch Panel Description Sound Volume Service SW Power SW Service Switch Panel Demagnetizer SW Fuse 2A A WARNING A Use of non TEHKAN parts or modifications of any TEHKAN game circuitry may have unfavorable effect upon the safety of your game and may cause injury to you and your players TEHKAN 6 DIP SWITCH Dip SW3 PCB A G GSETTING FOR DIP SW SW1 582 SW3 SW4 585 56 7 GAME COUNT DEMO 11 DIP SW 1 DIFFICULTY DOWN SOUND NOT USED
7. 6 193 SION due ACI OV 49 70 5 841 uOnejos g O d uto Jaueg 013005 AL JOWUOW 495905 J01e nBa y 90 9 Allt L 8 EE O8PI eg 2222 1 5 1 1 AY DWV 703843 83 punos 43 punos Block Diagram TEHKAN TEHKAN LTD TEHKAN LTD 8 Fl Sudachotowa Bldg 2 2 Kanda Suda cho Chiyoda ku Tokyo 101 Japan Tel 03 256 0378 Telex J27174 TEHKAN TEHKAN INC Victria Business Park 18010 S Adria Maru Lane Carson California 90746 Phone 213 329 5880
8. Index Part No Description Lock Ass y 1 set 2 Lock Cam 24 Adjuster Bracket T 27 Machine Screw 28 Power Cord z 20 21 22 3 1 z 33 Volume Control Knob z 35 Demagnetizer Switch I 37 Power Switch T MS 02 312 Switch Bracket Fuse 2A E 02 016 44 BM 01 012 Overlay Stopper MS 02 410 Machine Screw WS 02 416 Wood Screw 3 TEHKAN 8 Control Panel 55 amp Parts List 1st player side Index No 1 BM 01 006 PR 01 001 AR 01 001 AR 01 002 RF 01 002 C B Spacer FN 02 006 Flange Nut Carriage Bolt A WARNING Use of non TEHKAN parts or modifications of any TEHKAN game circuitry may have unfavorable effect upon the safety of your game and may cause injury to you and your players Control Panel 55 0 6 RF 02 001 Push Button 4 RF 02 002 Push Button TEHKAN C Control Ball Ass y amp Parts List ES amorosos AM 01 007 Roller Shaft E 9 moro senses a E 01 004 Photo PCB H5P 10 E 01 006 PhotoPCB A WARNING A Use of non TEHKAN parts or modifications of any TEHKAN game circuitry may have unfavorable effect upon the safety of your game and may cause injury to you
9. ET1374 ET1393 EM0128 EM1016 EM1116 EM1101 EM1064 EP0080 ECS4066 12V 100pF 12V 0 01 pF 12V 0 022uF 12V 0 1uF 0 15uF MISC Name Oo Description Dip SW 8P Dip SW 4P Xtal 18 432MHz OSC 3 0MHz IC Socket 18P 24P 28P 40P Heat Sink Flat Cable Header Other Parts Name Quantity EMI Shield PCB Components EMI Filter 36 Pin Connector 20 Pin Connector Photo PCB 7 Segment LED 8 SWS 4 SWS OSC Device Ceramic OSC 18 Pin 24 Pin 28 Pin 40Pin For MB3731 50 Pin 50 Pin Assembly DSS310 55B222M DSS310 558101M KEL1150 36 029 KEL1150 20 029 Assembly Assembly C11 C14 C32 C35 C38 C36 C41 C29 C40 C1 C9 C15 C20 DE Coupling C23 C24 C25 5902 XA 9 7H 73 7 K 4U 9FH 3A 3BC 30 4P 8P 98 56A 8N 89A Description C1 C2 5P EC12101 EC12103 EC12223 EC12104 EC50154 No ESW008 ESW004 EOS186 EOS036 ESK18 ESK24 ESK28 ESK40 EH5902 EFC5902 EHR5902 MOTHE02 EMS222 EMS101 EMC036 EMC020 PH5902 CMOSIC Analog SW CMOSIC Inverter Transistor Array OP AMP Power Amplifier PSG Voice Synthesizer P7L5902 4069 ULN2004 LM324 MB3731 YM2149 MSM5205 PCB Connectors For Harness 1W ECS4069 1L 114 ET2004 3S ELCO324 1T ELC3731 6N 6R ESS2149 1U ESS5205 Custom IC 1C CR 001 Hybrid IC 1M T 1 Hybrid IC 11 T2 Molex 1625 24R Molex 1292 9P Molex 1625 68 Molex 1625 58 S2P SHF 1 S4P SHF 1 S12P SHF
10. and your players Control Ball 55 ES FK AN D Power Supply amp Parts List 6 1 3 4 A WARNING A Use of non TEHKAN parts or modifications of any TEHKAN game circuitry may have unfavorable effect upon the safety of your game and may cause injury to you and your players To prevent an electrical shock hazard be sure to turn the game off before removing or replacing components Power Supply 3 E 02 019 CRT Connector BM 01 009 CRT Connector Bracket TEHKAN 10 SCHEMATIC DIAGRAM A Power Board Schematic Diagram C Switching Regulator Schematic Diagram NOISE FILTER SJT AWGIB43 CORD s MR 2043 A A DEGAUSS FUSE POWER Sw 125V2A Sw WARNING FOR COTINUED SAFETY RE PLACE SAFETY CRITICAL COMPONENTS ONLY WITH MANUFACTURER S RECOM MENDED PARTS SEE PARTS LIST lt Output circuit With the approval of DHHS FCC UL CSA Secondary side control circuit APL 12V 4 COIN MEC CONTROL PANEL A RECEPTACLE USE ONLY VIDEO MONITOR POR signal circuit TO LOGIC PCB EE Converter circuit Power Board Schematic Diagram B Credit Control PCB Schematic Diagram Overcurrent protective TCC 104 CREDIT CONTROL PCB Primary side control Overvoltage protective JN 3 COIN 1 o C 2 O 2 O
11. is malfunctioning d Check if the main PCB s 5V power source pilot lamp is lit and 5V is being supplied from the DC power source Images appear on the CRT but the action seems to be incorrect a Check if the main PCB is supplied 4 5 5 5V of DC voltage b Check if there is improper contact between 3 CPUs Z80A on the main PCB 5902 XA and the IC 40 pin socket c Check if there is improper contact for the J5 connector 33 TEHKAN The cross hatch on the video display is not normal a Adjust the knob for voltage supplied to the CRT and the CRT s horizontal and vertical sync knobs The game is not credited even when a coin is inserted a Check if the coin is stopped up b Check if the coin mechanism or the coin micro switch is malfunctioning c Check if the coin credit PCB is malfunctioning or there is improper contact for each connector The coin counter does not work a Check if the coin credit PCB is malfunctioning or there is improper contact for each connector b Check if the coin counter itself is malfunctioning Player Select cannot be performed a Check if there is improper contact for the push button blade switch b Check if there is improper contact for the J3 J2 connectors The controlball itself does not rotate smoothly a Check if there is something wrong with the ball bearings see page 10 Maintenance b The controlball ceases to rota
12. 0 74LS32 74LS74 N TU Location No 5902 XA lb 59028 MEN DE Coupling DE Coupling EC16102 EC16101 EC16100 EC12500 N C ON 74LS86 74LS107 74LS138 74LS139 74LS153 74LS157 74LS161 74LS174 74LS175 74LS191 74LS194 74LS244 74LS245 74LS257 74LS273 74LS283 74LS298 74LS367 74LS374 7415393 27128 6116 6116 120Ns 2148 4164 Z80A 4066 EPROM 16 6 RAM 2KByte RAM 2KByte RAM 4KBit DRAM 64KBit 8 Bit CPU 3E 4E 7M 8K 3F 4K 7A 8T 4T 8F 8H 9E 4N 2H 23 2K 2C 3H 3J 3K 3L 3P 3R 3S 3T 4N 4H 4J 4K 4L 4M 4E 4F 5D 6L 6M 7L 9K 9N 9U 1J 1K 6H 6J 6K 2C 2D 2M 2N 70 8E 83 9J 6 5M 5N 3A 38 3D 4PR 8PR 9BC 6BC 9D 9FH 9PRS 7H 7J 7K 56AB 8N 89 8 3N 6V 7L 7M 8B 18 2B 2u 2P 25 4L SL SN SU 6K 6U 8F 8H 9F 25 1 5M 9M 9N 9P 9R 9S 9T 1C 1D 1E 2C 2D 2E 30 3E 3L 4K 6C 6D 7D 7E 7P 7R amp P BR 9V 7A 78 1A 1S 1T 2A 3A 3B 3C 4D 4E BA 9A 98 1M 1 3J 7J 8S 6M 4V 4A 4B 6K 7S 4J 4C 5C SK 6H 6J 6S 6T 7H 7T 8N 8V 9C 9D 6N 7C 8C 8D 8E 3M 4M 1R 2R 2 5DE SF 5J 8J 8KL 8M 6F 6P SA 1F 1M 2F 2M E T1086 ET1107 ET1138 ET1139 ET1153 ET1157 ET1161 ET1174 ET117S ET1191 ET1194 ET1244 ET1245 ET1257 ET1273 ET1283 ET1298 ET1367
13. 1 S15P SHF 1 KEL1150 036 009 EDGE Connector HCM024 009 HCM006 HCM005 HC J002 HC J004 HC J012 HCJO15 HCKO36 PLA5902 LA12AC O M 7 m BW MN m Lamp PCB Lamp COD 12V AC 50 Pin Flat Cable Signal Name Quantity Description 1k2Q VR 1 4N 1 Carbon 84 6 1000 3300 R38 R43 R44 4700 R29 83 85 180 R4 86 R10 R28 R30 R31 832 R33 R8 RIO RTI R12 R34 R35 R39 R40 R41 R45 R46 R47 R37 R3 R5 R18 R23 R24 R36 R20 ER14912 R12 813 R15 R21 R22 R25 827 R42 R2 ER14103 R14 ER14223 R16 ER14473 811 817 814104 819 ER14684 RI 814105 EVROOO1 ER14470 ER14101 ER14331 ER14471 ER14102 SWAIT 10 MWAIT 4MHZ Reset VBL MF86R 14 Reset BUF COLOCK DISP VBL SRD EVENWR ODOWR CWRITEOD CRO PCBSEL SSW 58581 SBSEL CSEL SSEO SSDO HFL MSEO CSE8 CSDO CSC8 MSD8 MSC8 5001 3 5 7 ER14202 4 7kQ ER14472 108 221 41 100k11 680k 11 IMN Resistor Array 5100 x 4 1kfl x 4 CWRITEEV 3 3 1 9 1 1 2 1 1 RM10 RM12 RM14 RM16 RM18 0 RM6 RM7 RM8 RM9 RM25 RM26 RM22 RM11 RM13 RM15 RM17 RM19 RM21 RM2 RM4 RM23 RM24 ERAS5511 ERA5102 2 2 1 x 4 1kQ x 8 4 7k 1 x 8 1002 x 4 ERAS222 ERA9102 ERA9472 RM1 RM2 E
14. 8 B Qv doe cro M up ete CX ass 256763 222 pa A eevstors ore 1 4 wall umess cinerorta 2 K POSISION 65 126 2 noted The tolerance of remslance vere is SX z 6 I 1 UNE 1S nerwe noted 02 5 1520 6 COW 2076 All cacecilors ace A y OC Case or 4 44 DAML UNESI otver misa noted yuf 0 The lolerance af 404 1 veiue ine etecteotvGc 404 0 s ZO X unless 3 noted amp Me rating of 2404 107 SOWY unies o nerwsse noted T The merri LI CJ0GCIIO are as 2 I Polyester taa type Palyprooytene tle lype Clecirotyuc typa w93 Ta tatiu m NO marca 2 Ose cearaasc CALLO ere a4 lottgut Metal OF melal 08 04 lm 09 Cament 4 Sona tyoe 5 0 9 type NO mara Cacoon tim tyge NOTE 2 ICC 9 7 44 ore measures tram WMaiCaled 10 ground asin VM ida VM Zwavetorms aere laqan ein controls sat normal picture Cand lion 3 Bok e 4 1563 KE MSHIFAC13 X Ray M OSC IC401I 5 4 OSC 4 1 H POSITION 0505 3 H PCSIS ON 0402 908 23 CRT Scdematic Diagram TEHKAN mob wate 16 BLOCK DIAGRAM OV 3
15. DIP SW 2 NOT USED ALL OFF CREDIT PLAY 1P GAME 2P GAME EXTRA GAME DIP SW 3 TIME TIME TIME TYPE when turning power on by pressing both 1P and 2P button checks are conducted in the following sequence Adjust them as desired Credit Control PCB SW8 1 2 3 4 5 6 7 8 DIP SW1 OFF OFF OFF OFF DIP SW2 OFF OFF OFF OFF OFF OFF OFF OFF DIP SW3 OFF OFF OFF OFF OFF OFF OFF OFF One player 1Credit Two Players 2Credits Left Slot 1Coin 7 gt Right Slot 1Coin 1Credit F One Player Game Time 1 30 G Two Player Game Time 3 30 H Extra Time Per Coin 2 00 A Difficulty Moderate C Demo Sound On T Game Type Timer In B Timer Count 60 60 Cross hatch is displayed for 4seconds when kick button is pressed At the time when pressing again it continues to be displayed and a demonstration screen will follow by one more press of this button 7 TEHKAN DIP SW 1 A DIP SW1 1 2 DIFFICULTY FOR 1P GAME Difficulty for 1P game can be set Difficulty sw SW 1 Easy JON OFF ON ON o nj 4 More difficult ON B DIP SW1 3 COUNT DOWN Speed of the count down for game time can be set at 1second or 0 9second per 1count Countdown 1Count 1Second C DIP SW 1 4 DEMONSTRATION SOUND 0 5 OFF No Sound ON DIP SW A B C ON THE CREDIT CONTROL PCB Sw no 1 6 of DIP SW 2 should be kept OFF COIN CREDIT setting of COIN SLOT left a
16. RA8101 UNEO RM1 R3 RMS TEHKAN POSITION OF CONNECTOR 13 0 d sawso SUBJ L 7018 68 99511 BUIYDIIMS 124 9 94 MS 321498 959 19 59 1 X3 ON ACO 2 HU POD PO 11 FTW DY NINO SV OV SANSA DAP PQ v IAEA EES ROTO IDY IAI GOD 519591 951959 NSIT SRLS N AQUI 3 0 9ueg 2 Apis J3AE g Z t dHS deH R NSIeIYDIN NSIEIYJIN t dHSdSH NSIELYJIN 18 84 071002 apts 9 1 i 3HS dSH NSIEIYDJIN uoln 129195 dZ 41 Position of Connector TEHKAN WIRING 14 dSH gt d6 S 9I XH ION ve CONTROLBALL RED dvH NSJETYOIN m pb 3 m lt m o m o o eA gt 0 H M ka kw ee __M 2 MERA AD d 3 gt Id 4 1 s 2 II 322 714 TANVd 12 0 1 600 9 0 NOSTT I93 U9 SZ9T 0 G punos punos GNS o sopas u uro SOIAHSS NIOO vs vo e e e o e m e w N N N e e UI utog MS XOIN 31e3S ABTdI AS x TO YZT SZ9T TOW 118 1S AeBTdz p e 9 6 0006 COS II d IO13u05 8
17. adio communication It has been tested and found to comply with the limits for a Class A computing device pursuant to Subpart J or Part 15 of FCC Rules which are designed to provide reasonable protection against such inter ference when operated in a commercial environment Operation of this equipment in a residential area is likeiy to cause interference in which case the user at his own expense will be required to take whatever measures may be required to correct the interference Players may receive an electrical shock if this game is not properly grounded To avoid electrical shock do not plug in the game until it has been inspected and properly grounded This game should only be plugged into a grounded 3 wire outlet If you have only a 2 wire outlet we recommend you hire a licensed elec trician to install a grounded outlet Players may receive an electrical shock if the control panel is not properly grounded After servicing any parts on the panel check that the grounding clip is firmly secured to the metal tab on the inside of the control panel Only then should you lock up the game Before connecting the game to the AC power source verify that the proper voltage selection plug is installed on the game s power supply To avoid electrical shock disconnect the game from the AC power source before removing or repairing any part of the game When removing or repairing the video display extra precautions must be taken to avoid electric
18. al shock because high voltages may exist within the display circuitry and cathode ray tube CRT even after power has been disconnected Do not touch internal parts of the display with your hands or metal objects Always discharge the high voltage from the CRT before servicing this area of the game To discharge the CRT attach one end of a large well insulated 20 kV jumper to ground Momentarily touch the free end of the grounded jumper to the anode by sliding it under the anode cap Wait two minutes and discharge the anode again 2 TEHKAN 3 CAUTIONS 1 Care in Usage Care should be taken to avoid dragging or dropping the machine when transporting to prevent damage to the CRT e Use fuse of indicated rating 2 3 As high voltage is present in the monitor and TV PCB adjustments or repairs should be left up to a serviceman and should never be touched by the layman Care in Handling Always turn off the power supply switch before handling Avoid inserting and pulling the plug in rapid succession Do not check the IC board circuit with a tester Avoid rough handling in transportation the picture tube is fragile Installation As the video game is for indoor use do not install outdoors When installing avoid the following places a Near indoor pools or showers b Where leaks exist c Under direct sunlight d Near heaters or other heat emitting devices e Near hazardous items volati
19. e RS ee a O64 mo Q 0906 sa amp K Hana seu X Nosoz 2521091 POWER ORNE gece ISOK QZOI 2SCZ6GII R 55 VICEO 8 x NI 228 d 67 vow 5 2 8 3041 CT qe RX RNAI 2x A meek Romas 7 lasa 22x 8 ez 5 3 2 25 6 VA 8306 cos Ne LK gt AK 2700 0303 11 3 3 51 v oem 3 8 CRT EOARD 20 COLOR MONITOR SCHEMATIC DIAGRAM Z 2CES 40 r LIE D w gt 224 503 KPR woe N oo n i 1 Ov omg 2154 a k MIIU2 cui 9502 zr EY Z TEX FIM oak Fo KV 6 9 KV ILS 1 LW LO 4 m n l 52076 190 5 AT S4T C902 C903 9 8204 0904 25 26 10 Rou AE 1 an 4 Gaza Ls o 2200 ix Q903 ERROR SEMSCA PM J S gt Lw 2502610 sy i ro EJ gt ERROR ame 2 474 KJG20470 1 1 6 f 27 d pa 4 1 ERASE m 8222 SCI 31 w Lo LI 80 TUM c P ms RT w Q 47 y t d 450 ac 4 2 2 3 09 L CX aab 1 mo 3255 m U a ow 220 CSOT 2SA673 cz Z 503 c2 les 2SGSOOB 46 47 HOUT 7 Q401 256 MOTE I 2S0112
20. erates and uses radio frequency energy and if not installed and used properly that is in strict accordance with the manufacturer s instructions may cause interference to radio and television reception It has been type tested and found to comply with the limits for a Class A computing device in accordance with the specifications in Subpart J of Part 15 of FCC Rules which are designed to provide reasonable protection against such interference in a residential installation However there is no guarantee that interference will not occur in a particular installation If this equipment does cause interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient the receiving antenna Relocate the computer with respect to the receiver Move the computer away from the receiver Plug the computer into a different outlet so that computer and receiver are on different branch circuits i If necessary the user should consult the dealer or an experienced radio television technician for additional suggestions The user may find the following booklet prepared by the Federal Communi cations Commission helpful How to Identify and Resolve Radio TV Interference Problems This booklet is available from the US Government Printing Office Washington D C 20402 Stock No 004 000 00345 4 TEHKAN
21. le fluids gas cylinders etc f Where vibrations are severe near construction sites where jack hammers etc are used g Inclined places h Near fire extinguishing equipment i Near emergency exits Caution a To prevent electric shock do not use this polarized plug with an extension cord receptacle or other outlet unless the blades can be fully inserted to prevent blade exposure In case the machine does not work properly after the power switch is turned on make sure the proper voltage exists at the line cord 4 5 Trouble Shooting When it is believed that trouble has developed always confirm the following items Is the fuse intact Always use fuse of the designated rating When the replaced fuse burns out again this will indicate that another component is defective Are there any poor connections connectors or open circuits Special care must be taken to ensure connectors are firmly inserted Troubles due to faulty contacts can be considered from various sources Note Always turn off the power when inserting or removing the connectors There will be times when a normal picture will not appear when the power supply switch is turned on As this may sometimes be corrected by a setting of the control circuit turn power supply switch on and off several times When testing meters switches etc with a tester always first pull the IC board connectors Caution This equipment gen
22. nd right can be set by DIP SW A B C on the credit control PCB D COIN SLOT LEFT DIP SW A B DIP SWITCH A 1CREDIT 2CREDITS 5 4CREDITS OFF 5CREDITS OFF 6CREDITS OFF D COIN SLOT RIGHT DIP SW C DIP SWITCH C 1COIN SCREDITS 1COIN 6CREDITS OFF OFF OFF OFF OFF DIP SW 2 E DIP SW2 7 8 CREDIT PLAY IPLAYER GAME 2PLAYERS GAME sw 7 sw8 OFF Credit iPlay iCredit iPlay ON OFF ON ON 2Credits 1Play 2Credits 1lPlay OFF iPlay 3Credits 1Play ON TEHKAN DIP SW 3 Time is increased for 2P game when additional coin is inserted Also extra time can be set in addition to the normal time Additional time on the screen is calculated with following formula Additional time 2P game time 2P extra time Fixed credit number for credit play iIn case SW7 and 8 for DIP SW2 are off land SW3 4 5 6 and 7 for DIP SW3 are off 1 3 30 0 30 2 2 00 I DIP SW3 8 GAME TYPE FOR 2P sw8 Timer in OFF Credit in ON It can be set that how to add EXTRA as time or as credits when additional coins are inserted In case CREDIT IN time is 2P button pressed Refer to EXTRA TIME regarding to additonal time increased every time 7 MAINTENANCE 1 Push Button Blade Switch e Adjust the blade switch contacts for correct gaps e When the blade is bent straighten it by using the blade adjusting rod A WARNING T
23. o prevent an electrical shock hazard un plug the game prior to performing any main tenance i Blade Adjuster e Take out carbon deposits on the blade switch by using a clean cloth etc 2 Inspecting the Controlball e Check the controlball to see if its roller shafts have worn In case there is too large a clearance between the C B spacer and the ball due to the excessive wear of the roller shaft replace either the roller shaft A or the roller shaft B e Lubricate the control ball s ball bearings every month or 2 000 credits After wiping out dust etc cleanly place 2 or 3 drops of light duty oil on each of 6 ball bearings 5 55 4 m 8 1 TEHKAN TROUBLE SHOOTING When the power switch has been turned ON after inserting the power plug into the outlet no action ensues e Check if the power source voltage is 2 2 O V e Check if the plug has been normally inserted e Check if fuses have blown 2 When the power switch is in the ON state The controlball lamp and the coin slot lamp do not come on a Check if the filament is off b Check if voltage in the secondary side of the insulator type transformer is normal at 12V AC c Check each connector if its contact is normal No image appears on the CRT P a Check if the CRT heater is glowing b Check if power is supplied from the secondary side of the insulator type transformer c Check if the CRT itself
24. te smoothly when there occurs contact between the ball and C B spacer due to the loosening of 4 carriage bolts and nuts which fix the ball on the control panel The control ball does not work a Adjust the interval between 2 photointerrupters of the photo PCB b Check if the disc plate is bent or there is improper contact for each connector Cannot perform Kick a Check if there is improper contact for the push button blade switch or each connector TEHKAN 9 ILLUSTRATED PARTS LIST A Cabinet a 40 9898 2 e Cabinet Parts List Description Cabinet Cured Glass PP 01 002 Graphic Seal 7 FN 02 006 Flange Nut AM 01 001 Control Panel Ass y 1 player 1 AM 01 002 u 2 player BB 02 630 Button Bolt 10 BM 01 002 Glass Plate 12 CB 02 630 Carriage Bolt 3 FN 02 006 Flange Nut 14 5 02 002 5 02 003 Lamp Socket CB 02 630 Carriage Bolt AM 02 001 Coin Door Ass y A WARNING A Use of non TEHKAN parts or modifications of any TEHKAN game circuitry may have unfavorable effect upon the safety of your game and may cause injury to you and your players EH AM 02 003 To prevent an electrical shock hazard be sure to turn the game off before removing or replacing components
25. ww o w a Starting driving circuit 727 3 3 D isis 3 sow SV No6 p COIN METER 1 Lh 7 No8 zi o a No o a lt COIN METER 2 Y ka D gt o 2 o _ 1 Ru eo 10 a IPF N P 229F 33 5 8 7 o pe as 2 tok n 9 1PF ton 32 ar 2 wane PN rA door be Disp s 2 b F c3 69183 5 Tub Pai wok D 7 No ez udi SLs 510k n mi 6 33kn Rio 04 1000 Q SERVICE SW lt No4 6 35 57 2 277 No10 i tyr 0 1 GND Mol Credit Control PCB Schematic Diagram Switching Regulator Schematic Diagram TEHKAN 11 MAIN PCB IC LOCATION A Main PCB IC Location 2 B Main PCB IC Location 1 f a 4 a v ce c c gt a gt ca 4 4 1332 TIT sia m mm ee 14 M c w 1502 T 15273 EL 4 c c e c PTT 6537 um gt cr 76 4 CF 4 4 CE 15139 a cr 4 cr 13298 Ji 2 s b 6 15 37 1523 EN noe c a n a 1508 1408 45 37 cr 818 8
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