and Service Manual
Contents
1. 65059505 052 5 7905 275985402 52 T75222 0 oz 95 5 80225520 2006839 309 Figure 21 Bo lt B eg Bm je pa a il Se 2 p 5 5 5 Back L 7777 EF E NT Baa Ric R24 zu Bsp di 131 n EX 4 d i UE 4058 222 Bad E amp E E U 0 e CIE res LIE ase 57 Xu zse Ut 4A zoz z w om B gt Z VICIZ seo gt lt cr NU MS R23 gas RRA N Gay mmn mic 488 10 gente test dem ee mor fe BLU 9 cog C m Em RISO R94 ROS TEF RIBO 158 gt 25757 SE Centipede Game PCB Assembly A037241 01 Co gt Hi ere c gt E dE H Figure 21 Centipede Centipede Game PCB Assembly continued Parts List Part No Description Reference Designations and Locations in Bold C012294 01 Audio N Channel MOS LSI Custom Chip C3 24 25012. 22 Figure 14 Fluorescent Tube 23 Figure 15 Power Distribution cece Rh 25 Figure 16 Signal Distribution 0 cc cece n m I mmm 26 Illustrated Parts Lists Figure 17 Cabinet Mounted Assemblies 30 Figure 18 Control Panel 31 Figure 19 55 III 32 Figure 20 Regulator Audio II Assembly 34 Figure 21 Centipede Game PCR Assembly 36 Figure 22 Power Supply 40 Figure 23 Fluorescent Light and Speaker Assembly 42 Figure 24 American Made Coin 44 Figure 25 British Made Coin 48 Location Setup A New Features The Centipede game has several new parts Even if you are familiar with Atari games you should note these important differences The new parts are e Mini Trak Assembly The widely used Trak Ball assembly has been redesigned The basis for this compact simplified design is a two part molded plastic frame Fewer parts in this control make servicing easier and its very smooth ac tion is designed for greater player accuracy The circuitry has non volatile memo
3. Voltage Plug 120V plug for U S power supply only A C Harness Assembly RFI Filter Assembly FL1 Transformer Assembly T1 Power Harness Assembly Fuse Harness Assembly Voltage Plug Assembly 100V 220V and 240V plugs international only 27 000 uf 15 VDC Electrolytic Capacitor C1 Bridge Rectifier MDA 3501 1 4 Amp 250 V 3AG Slow Blow Glass Cartridge Type Fuse F2 F4 F6 7 Amp 250 3AG Slow Blow Glass Cartridge Type Fuse F1 20 Amp 32 V 3AG Slow Blow Glass Cartridge Type Fuse F3 Nylon Type 6 6 Hole Bushing with Inch Inside Diameter x Outside Diameter x 14 inch Thick 2 Inch Diameter Capacitor Mounting Bracket 2 Circuit Single Row Terminal Block 5 Position Fuse Block with 4 Inch Quick Disconnect Terminals Panel Mounting Non Indicating 3AG Cartridge Type Fuse Post Power Supply Chassis Fuse Block Cover Label for Fuse Value F1 Label for Fuse Values F2 F6 41 Centipede an 79 561816P Wire Nut NOTE To ensure that the fluorescent tube starts make sure the ground wire is firmly attached to both the ballast 99 11003 99 11009 transformer and the steel lamp bracket Starter Socket 48 009 Speaker A037457 01 Harness 179035 001 Lampholder 142028 001 or 002 Transformer 70 304 Tube NOTICE TO ALL PERSONS RECEIVING THIS DRAWING CONFIDENTIAL Reproduction forbidden without the spe cific written perm
4. zapew joe qns ay Bulmesp siy eonpoudei 6 si 401 ou 5 au sapun aunjoResnuew 10 pue ery JO SIOPUBA Aq einjoejnueu 30 13 3 Aue 10 siy Aue UMOYS 1 015 Aue 10 10 j2elqns eu asn 0 4 40 ut Aue 40 5394009 09 9 uoissessod 100 0 1 pue panss jjeuonipuoo s 14 V2 ejeAAuung ery jo uoissiuued UAM eu 1 11 3014 SNIMVHC SIHL S9NIAI323H SNOSH3d OL 222 10 7 TDA2002A TOA2002A m2 o at Figure 20 Regulator Audio PCB Assembly A035435 02 34 Part No 12 52P7 16 54PO 19 100P1015 19 315102 24 250108 24 250477 24 350226 24 350338 24 500105 29 088 31 1N4002 31 5401 33 TIP32 34 2N3055 37 LM305 37 7812 37 7905 72 1608C 75 F60405 75 99516 78 16008 78 16014 79 58306 79 58308 79 58346 79 58354 020670 01 034531 01 100015 103 110000 010 110000 100 110000 101 110000 102 110000 103 110000 271 110000 330 110000 392 110000 562 110000 752 110001 221 116000 220 122002 102 122004 224 137151 002
5. 21 Centipede E Printed Circuit Board Removal You may wish to remove the Centipede game printed circuit board or the Regulator Audio 1 PCB for service or inspection To do this refer to Figure 13 and proceed as follows 1 Game PCB Removal Unlock and open the rear access panel 2 Remove the 24 and 44 pin edge connectors from the right side of the game PCB Locate the Phillips head screw that extends through the PCB and into the two wood blocks at the right side of the board Remove and save this screw as well as the fiber spacers e Remove the PCB from the cabinet by carefully sliding it straight out of the plastic PCB retainer Be careful not to twist the board as this may loosen connections or components Replace or e repair as necessary After servicing reinstall the PCB making sure that the edge connectors are properly plugged in Note that the connectors are keyed to fit on only one way so if they don t slip on easily don t force them A reversed connector will probably damage your PCB and will void the warranty Check that the operation of the game is correct by performing the self test It is especially im portant to do the self test with any game when you replace a PCB Regulator Audio PCB Removal Unlock and open the rear access panel Remove the five plug in connectors on the Reg ulator Audio Il PCB Note that all of these con nectors are keyed for proper orie
6. French 2 Fr 1 Fr Coin Door 171001 010 Swedish 1 Kr 1 Kr Coin Door Centipede 99 15067 Lock Assy 99 15063 Screw 99 15062 Hinge 99 15066 Screw 99 15065 Clamp 171000 011 Hong Kong 1 1 Coin Door 171001 012 Canadian 25 25 Coin Door 171001 013 U S 25 25 Coin Door 171001 014 Spanish 25 Pts 25 Pts Coin Door 171001 015 Swiss 1 Fr 1 Fr Coin Door Figure 25 British Made Coin Door 171001 xxx A 49 Centipede Part No 47 1002 99 15001 99 15002 99 15003 99 15004 99 15005 99 15006 99 15007 99 15008 99 15009 99 15010 99 15011 99 15012 99 15025 99 15026 99 15027 99 15028 99 15029 99 15030 99 15036 99 15037 99 15038 99 15039 99 15040 99 15041 99 15042 99 15051 99 15052 99 15053 99 15054 99 15055 99 15056 99 15060 99 15061 99 15062 99 15063 99 15064 99 15065 99 15066 99 15067 50 Figure 25 British Made Coin Door continued 171001 xxx A Description Coin Counter Coin Return Button with U S 25 Price Plate Coin Return Button with U S 1 Price Plate Coin Return Button with German 1 DM Price Plate Coin Return Button with German 2 DM Price Plate Coin Return Button with German 5 DM Price Plate Coin Return Button with Belgian 5 Fr Price Plate Coin Return Button with French 1 Fr Price Plate Coin Return Button with Japanese 100 Yen Price Plate Coin Return Button with British 10 Pence Price Plate Coin
7. 4 coins 2 coins 1 play 6 1 3 plays Susan Anthony JUI 1coin 1 play 2 play minimum 2 coins 2 plays For operator use write the appropriate phrase Use permanent ink water resis tant marker Centipede Figure 9 Coin Counter Option Settings These toggles determine which coin mechanisms activate which counters Toggle Settings of 4 Toggle Switch on Game PCB N11 4 3 2 1 Two coin acceptors in the coin door Two coin acceptors and a push button utility coin switch in the _ game On On Both acceptors activate all coin counters simultaneously Both acceptors activate 2 count ers separately gt 2 2 3 gt 5 5 Off On Both acceptors activate all coin lt counters simultaneously Off Off Both acceptors activate 2 count ers separately Do not use this setting Do not use this setting Utility coin switch will not acti vate a coin counter if you do not hook it up Both acceptors acti vate all coin counters simultane ously Utility coin switch will not acti vate a coin counter if you do not hook it up Left and right accep tors activate 2 coin counters se parately Three coin acceptors in the coin door All 3 are same denomination and they activate all coin counters si multaneously Left and center acceptor activate one coin counter right acceptor ac tivates another coin counter
8. Centipede Figure 20 Regulator Audio 11 PCB Assembly Parts List Description Reference Designations and Locations in Bold 2 7 Ohm 5 1W Resistor R5 4 Ohm 5 5W Wirewound Resistor R25 Ohm x 396 7W Wirewound Resistor R24 1K Ohm Vertical PCB Mounting Cermet Trimpot R8 1000 uf Aluminum Electrolytic Fixed Axial Lead 25V Capacitor C13 470 uf Aluminum Electrolytic Fixed Axial Lead 25V Capacitor C1 4 12 22 uf Aluminum Electrolytic Fixed Axial Lead 35V Capacitor C24 31 3300 uf Aluminum Electrolytic Fixed Axial Lead 35V Capacitor C9 10 18 19 1 uf Aluminum Electrolytic Fixed Axial Lead 50V Capacitor C22 23 1 uf Ceramic Disc 25V Radial Lead Capacitor C3 11 20 21 100V 1 Amp Silicon Rectifier Type 1N4002 Diode 1 4 8 100V 3 Amp Silicon Rectifier Type 1N5401 Diode CR 5 8 PNP Power Transistor Type TIP32 02 NPN Silicon Transistor Type 2N3055 03 5V Linear Voltage Regulator Q1 12 Voltage Regulator Type 7812 08 5V Voltage Regulator Type 7905 Q9 86 32 x Cross Recessed Pan Head Corrosion Resistant Steel Machine Screw 86 32 x 144 Binder Head Nylon Screw 86 32 Nut Washer Assembly Thermally Conductive Compound Q3 Thermally Conductive Silicon Insulator 02 9 6 Position Connector Receptacle 46 9 9 Position Connector Receptacle J7 12 Position Connector Receptacle 410 4 Position Connector Receptacle J8 Test Point Heat Sink 01 uf C
9. Inch Slotted Steel Machine Screw 72 9603S 6 32 x Inch Slotted Truss Head Steel Machine Screw 75 915S 14 20 Standard Pattern Cadmium Plated Steel Hex Nut 75 918S 8 32 Standard Pattern Cadmium Plated Steel Hex Nut 75 9445 84 40 Polymer Self Locking Steel Hex Nut 75 948S 8 32 Polymer Self Locking Steel Hex Nut 75 1408S 84 40 x 2 Slotted Pan Head Steel Machine Screw 75 14125 84 40 x 34 Inch Slotted Pan Head Steel Machine Screw 75 5520B 14 20 114 Inch Round Head Square Neck Steel Bolt with Black Finish 99 10008 Switch Wire Retainer 99 10009 2 Mech Coin Door Only 99 10010 3 Mech Coin Door Only 99 10012 U S 25 Coin Return Button Assembly 99 10013 U S 1 00 Coin Return Button Assembly 99 10014 German 1 DM Coin Return Button Assembly 99 10015 German 2 DM Coin Return Button Assembly 99 10016 German 5 DM Coin Return Button Assembly 99 10017 Beigian 5 Fr Coin Return Button Assembly 99 10018 Swiss 1 Fr Coin Return Button Assembly 99 10019 Japanese Y100 Coin Return Button Assembly 99 10020 U K 10 P Coin Return Button Assembly 99 10021 Australian 20 Coin Return Button Assembly 99 9022 Italian 100 Lire Coin Return Button Assembly 99 10040 Coin Inlet Chute Assembly 99 10041 Coin Counter Assembly 99 10042 Coin Switch Assembly for U S 25 and Belgian 5 Fr Coins silver wire 99 10043 Coin Switch Assembly for German 1 DM Swiss 1 Fr and Japanese Y100 Coins black wire 99 10044 Coin Switch
10. and rolling the Trak Ball control changes the letters on the screen After the fire button is pressed the third time the initials and score are transferred to the table This table contains eight scores and appears during the attract and ready to play mode All but the highest three scores are erased when ever you enter the self test or press the RESET but ton on the game PCB or turn off the power This re setting replaces the lowest five scores with ficti tious scores and initials you erase the special permanent memory the high score table is replaced with eight fictitious scores and initials In other words the table will al ways be displayed on the screen possibly consisting of one or more realistic scores and players initials 16 Maintenance and All games require certain maintenance to keep them in good working order Clean properly main tained games will attract players and earn more pro fits The most important maintenance item is running the self test every time you collect money from the coin box Just looking at a game will not tell you if Mini Trak Ball control leaf switch or light emit ting diode LED switches are broken or if LEDs have burned out The self test will inform you of any of these possible problems Second you should regularly clean the outside of the game and the coin mechanisms In addition you will need to regularly lubricate the Mini Trak Ball
11. Centipede 1 Voltage Selection If you live outside the United States your Centi pede game has the international power supply with three colored plugs Before plugging in your game make sure that the voltage selection plug on the power supply see Figure 3 is correct for your lo cation s line voltage Check the wire color on the plug and see if it is correct per Figure 3 2 Interlock and Power On Off Switches To minimize the hazard of electrical shock while working on the inside of the game cabinet an inter lock switch has been installed see Figure 4 One is located behind the rear access panel and one is be hind the coin door These switches remove all AC line power from the game circuitry when a door is opened Check for proper operation of the interlock switches by performing the following steps Be sure the access panel and the coin door are closed Plug the AC line power cord into an AC outlet Set the power on off switch to the on position Within approximately 30 seconds the monitor should display a picture Slowly open the rear access panel The monitor picture should disappear when the panel is opened approximately 2 cm 1 inch Close and tock the access panel and repeat this step with the coin door If the results of the preceding step are satisfac tory the interlock switches are operating pro perly If the monitor doesn t go off as described check to see if the corresp
12. Hole Bushing 46 301203 Fuse NOTICE TO ALL PERSONS RECEIVING THIS DRAWING CONFIDENTIAL Reproduction forbidden without the spe 78 70501SC cific written permission of Atari Inc Sunnyvale CA This drawing is only conditionally issued and neither receipt nor Capac Bracket 29 053 possession thereof confers or transfers any right in or li cense to use the subject matter of the drawing or any de Capacitor sign or technical information shown thereon nor any right to reproduce this drawing or any part thereof Except for manufacture by vendors of Atari Inc and for manufacture under the corporation s written license no right is granted A035888 01 or 02 to reproduce this drawing or the subject matter thereof un gt less by written agreement with or written permission from Transformer the corporation BOTTOM VIEW 3A MDA3501 Rectifier A034630 01 A035890 01 A034629 01 79 15021001 RFI Filter Pwr Harness A C Harness Term Block Figure 22 Power Supply Assembly 037671 01 U S 037671 02 International 40 Centipede Figure 22 Power Supply Assembly Parts List P Part No 021084 02 034629 01 A034630 01 A035888 01 or 02 A035890 01 A035891 01 A037479 01 29 053 3A MDA3501 46 2014002 46 2017002 46 301203 78 2708 78 70501SC 79 15021001 79 3206 79 4411001 034482 02 034544 01 037639 01 037641 01 Description Reference Designations in Bold
13. connectors together The connectors are keyed so they only go on in the proper orien tation A reversed edge connector will dam age a PCB and will void your warranty Check that all plug in integrated circuits on the game PCB are firmly seated in their soc kets Remove the tie wrap that holds the coiled power cord on the inside cabinet wall Check the cord for any cuts or dents in the insula tion Place the square black metal strain relief plate in the wood slot at the bottom of the rear panel opening Centipede WARNING To avoid possible unpleasant electrical shock do not touch internal parts of the monitor with your hands or metal objects held in your hands Note the location of the game s serial num ber it is printed on the special label on the outside of the game cabinet Verify that the serial numbers also stamped on the Centi pede Game PCB Regulator Audio Il PCB and monitor are all identical A drawing of the serial numbered components is on the inside front cover of this manual Please mention this number whenever you call your distributor for service Check all major subassemblies such as the power supply control panel and monitor for secure mounting C Game Installation Figure 2 Installation Requirements Power 130 watts Temperature 0 to 38 C 32 to 100 F Humidity Not over 9596 relative Space Required 64x82 2514 x 3214 in Game Height 181 cm 71 in
14. 222 110000 331 110000 332 110000 471 110000 560 110000 563 122002 102 122004 224 122005 103 128002 101 128002 221 128002 390 136001 201 or 211 136071 202 or 212 136601 203 or 207 136001 204 or 208 136001 205 or 209 136001 206 or 210 136001 213 137161 001 137169 001 137170 001 38 Description Reference Designations and Locations in Bold 100 uH 5 Hot Molded Plastic Fixed R F Choke L1 3 SPST Momentary Pushbutton Switch Reset 4 Station Single Throw Dual Inline Package Bit Switch N11 8 Station Single Throw Dual Inline Package Bit Switch 16 Contact Medium Insertion Force Integrated Circuit Socket P4 22 Contact Medium Insertion Force Integrated Circuit Socket 5 24 Contact Medium Insertion Force Integrated Circuit Socket F7 H J7 D1 E1 F H1 J1 40 Contact Medium Insertion Force Integrated Circuit Socket C2 C3 Nylon Snap In Fastener 12 096 005 Crystal Y1 Microprocessor C2 Random Access Memory 08 K5 K7 L5 L7 M5 M7 5 N7 F2 H2 Random Access Memory Random Access Memory Test Point 1K Ohm 5 14W Resistor R9 11 13 16 23 28 31 38 55 60 67 68 77 79 80 87 89 94 95 99 104 109 114 123 134 136 140 10K Ohm 5 Resistor R1 2 6 8 12 17 22 29 30 39 54 70 71 83 86 130 133 110K Ohm 5 14 Resistor R81 82 105 106 100 MegOhm 5 Resistor 5 1 5K Ohm 5 Resistor R108 220 Ohm
15. 5 14W Resistor 2 2K Ohm 5 Resistor 330 Ohm 5 14W Resistor 3 3K Ohm 5 14W Resistor R3 62 64 66 72 74 76 78 135 R107 R61 63 65 73 R69 103 470 Ohm 5 14W Resistor R90 93 96 98 100 110 113 124 129 56 Ohm 5 4W Resistor R101 102 56K Ohm 5 Resistor R4 001 uf Ceramic Disc 50V Radial Lead Capacitor C4 22 uf Ceramic Disc 25V Radial Lead Capacitor C65 01 uf Ceramic Disc 25V Radial Lead Capacitor C53 100 pf Radial Lead Epoxy Dipped 100V Mica Capacitor C1 220 pf Radial Lead Epoxy Dipped 100V Mica Capacitor C38 39 39 pf Radial Lead Epoxy Dipped 100V Mica Capacitor C2 Read Only Memory F7 Read Only Memory Read Only Memory 01 Read Only Memory 1 Read Only Memory F H1 Read Only Memory J1 Programmable Read Only Memory P4 Type ER2055 Integrated Circuit E5 Note If you replace this part you must erase this ROM before locking up the game See Figure 6 Self Test Procedure in this manual for instructions Type 74LS107 Integrated Circuit 14 Random Access Memory B6 Acceptable substitute is part 90 7008 or 90 7035 Centipede 79 4411001 037479 01 Fuse Post ae i oltage Plugs 034482 02 037639 01 46 2017002 03454401 46 2014002 a Chassis Label Fuse Cover Fuses h abe 79 3206 Fuse Block A035891 01 15 oni Fuse Harness 120V Plug 78 2708 VIEW
16. Lockt Coil Spring lt 99 15027 Coin Ret Box 7 99 15028 Coin Ret Box 99 15037 Sw Adjuster 99 15056 Screw for Bezel 99 15060 n i Sw Cover Bracket dii Switch Figure 25 British Made Coin Door 171001 xxx A 48 99 15067 Lock Assy NOTICE TO ALL PERSONS RECEIVING THIS DRAWING CONFIDENTIAL Reproduction forbidden without the spe cific written permission of Atari Inc Sunnyvale CA This drawing is only conditionally issued and neither receipt nor possession thereof confers or transfers any right in or li cense to use the subject matter of the drawing or any de sign or technical information shown thereon nor any right to reproduce this drawing or any part thereof Except for manufacture by vendors of Atari Inc and for manufacture under the corporation s written license no right to repro duce this drawing is granted or the subject matter thereof unless by written agreement with or written permission from the corporation 99 15064 Frame 171001 001 British 10 P 10 P Coin Door 171001 002 British 10 P 50 P Coin Door 171001 003 British 20 P 50 P Coin Door 171001 004 German 1 DM 1 DM Coin Door 171001 005 German 2 DM 1 DM Coin Door 47 1002 Counter 99 15061 Dual Entry Frame 171000 006 German 2 DM 5 DM Coin Door 171001 007 Belgian 5 Fr 5 Fr Coin Door 171001 008 French 1 Fr 1 Fr Coin Door 171001 009
17. PCB performs two func tions 1 it regulates the 10 VDC from the power supply to 5 VDC and 2 it amplifies the audio out put from the game PCB The 5 VDC from the Reg ulator Audio 1 PCB provides most logic power to the game PCB The audio output from the Regulator Audio Il PCB directly drives the game speaker and is controlled by the volume control mounted on the bracket inside the coin door The power supply is the source of all voltages in the game These voltages are protected by three fus es F3 F4 and F5 on the power supply chassis The primary winding of the power supply transformer is protected by the fuses F1 and F2 on the power sup ply chassis Figure 15 illustrates the distribution of power in this game Figure 16 illustrates the distribution of signals Centipede FLUORESCENT TUBE COLOR MONITOR CONTROL PANEL d 720 COIN DOOR INTERLOCK SWITCHES GAME PCB x 9 ADS gt POWER SUPPLY 115 VAC ee lt SO Se AC POWER CORD SS Y Ve gt m REGULATOR AUDIO PCB 5 P POWER ON OFF SWITCH Figure 15 Power Distribution 25 Centipede SPEAKER _ COLOR MONITOR 0 CONTROL PANEL PS A VOLUME CONTROL AUDIO OUT RED GREEN BLUE COMP SYNC TRAK BALL V DIR amp CLK FIRE TRAK BALL H DIR amp CLK START1LED x AUDIO1 amp 2 SPEAKER 1 amp 2 GAME PCB 5 O
18. smaller area at the bottom of the screen An important new feature of this game is the oper ator option for easy hard game difficulty In the easy game the spider moves slowly up to a 5 000 point score and then bounces at a higher speed It also changes direction less often throughout the game than at the hard setting In the hard setting the spider moves slowly only for the first 1 000 points and then speeds up It also changes direction more often throughout the game In either setting the spider always moves at a 45 degree angle or straight up and down Another operator option is the number of lives per game ranging from 2 to 5 see Figure 7 for switch settings This number is displayed as small shoot ers at the top of the screen The number is de creased by one each time a player is destroyed The number is increased by one each time the player scores multiples of 10 12 15 or 20 thousand points depending on the operator selection 4 High Score Initial Mode player s score exceeds the minimum on the high score initial list he or she may put up to three initials on this list at the end of the game At the be ginning of this mode the characters __ appear on the screen The logic will also display the mes sages GREAT SCORE and ENTER YOUR INITIALS Players enter initials one character at a time choosing from the characters A thru Z and a blank space Pressing the fire button selects the letter
19. 06 10 uf Aluminum Electrolytic Fixed Axial Lead 25V Capacitor C83 24 250107 100 uf Aluminum Electrolytic Fixed Axial Lead 25V Capacitor C52 78 24 500105 1 mf Aluminum Electrolytic Fixed Axial Lead 50V Capacitor C79 82 84 86 24 500106 10 uf Aluminum Electrolytic Fixed Axial Lead 50V Capacitor C85 29 088 1 uf Ceramic Disc 25V Radial Lead Capacitor C3 5 37 40 51 54 64 66 77 31 1N914 75V Type 1N914 Switching Diode CR1 2 31 1N4001 75V Type 1N4001 Switching Diode 5 33 2N3906 Type 2N3906 PNP Switching and Amplifying Transistor 03 34 2N3904 Type 2N3904 NPN Silicon Transistor Q1 2 4 5 34 2N6044 Type 2N6044 Darlington NPN Transistor 06 8 37 LM324 Type LM324 Integrated Circuit 410 37 4584B Type 4584B Integrated Circuit F10 F11 37 555 Type 555 Timer Integrated Circuit 11 37 74LS00 Type 74LS00 Integrated Circuit L8 37 74LS04 Type 74LS04 Integrated Circuit 37 74LS08 Type 74LS08 Integrated Circuit B7 K4 37 74LS10 Type 74LS10 Integrated Circuit L3 K2 37 74LS20 Type 74LS20 Integrated Circuit A7 37 74LS32 Type 74LS32 Integrated Circuit 4 C5 43 37 74LS42 Type 74LS42 Integrated Circuit 37 74LS74 Type 74LS74 Integrated Circuit D4 D11 M3 37 74LS83 Type 74LS83 Integrated Circuit F6 H6 37 74LS86 Type 74LS86 Integrated Circuit E7 37 74LS90 Type 74LS90 Integrated Circuit 1 2 37 74LS139 Type 74LS139 Integrated Circuit C4 42 37 741 5153 Type 74LS153 Inte
20. 14 Centipede When centipede is shot it breaks into two small er ones each with a head Also the part of the centi pede that was shot leaves a mushroom in its place on the screen When any centipedes reach the bot tom of the screen they start back up but remain within the area of the player s shooter the bottom fifth of the screen When a large centipede that hasn t been shot yet reaches the bottom it releases its tail and this part changes into a new head Also to provide player challenge if a centipede is still alive when it reaches the bottom new heads will enter the screen almost at the bottom of the sides More of these heads will appear as time progresses The randomly moving spiders also appear in the first wave The spiders can destroy a player as well as any mushrooms they move over This eliminates many mushroom targets for a player The player s shooter is moved by rotating the Trak Ball control The shooter can be moved in all direc tions but only within the bottom fifth of the screen Pressing the fire button causes the shooter to fire shots upwards either singly or in rapid fire mode if held down constantly Mushrooms count 1 point when shot and a player must fire four shots into a mushroom before it is de stroyed and disappears Centipede body parts count 10 points each and the elusive heads represented with smali eyes on them are worth 100 points each Spiders are worth 300
21. 600 or 900 points depending on how close they are to the player when shot A bombardment of fleas starts in the second wave as the fleas descend they leave a trail of new mushrooms behind them In the second wave the fleas appear when a cer tain number of mushrooms remains at the bottom of the screen This number increases as the game pro gresses meaning fleas appear more often later on in the game Fleas have a value of 200 points when shot and players must hit them twice to destroy them the first shot just speeds them up The scorpion enters from either side starting in the fourth wave it moves at a relatively slow speed Later it increases its speed When shot a scorpion counts 1000 points the highest value target of all 15 Centipede As it travels across the screen it poisons the mushrooms that it moves over and changes their colors These mushrooms cause any centipedes that would collide with them to head straight towards the bottom of the screen rather than con tinue snaking around Players can stop a poisoned centipede by shooting its head In addition these poisoned mushrooms as well as any partially shot mushrooms add 5 points to the players score at the end of each life when the screen is resetting If the players are very skilled and earn at least 60 000 points two things happen to increase player challenge the fleas descend at a faster speed and the spiders restrict their movement to a
22. 7 Button Assy 99 10062 Button 99 10009 or 99 10010 Door bm 99 10094 Insul Part of 99 10074 99 10049 Locking Arm Bolt NOTICE TO ALL PERSONS RECEIVING THIS DRAWING CONFIDENTIAL Reproduction forbidden without the spe cific written permission of Atari Inc Sunnyvale CA This drawing is only conditionally issued and neither receipt nor possession thereof confers or transfers any right in or li cense to use the subject matter of the drawing or any de sign or technical information shown thereon nor any right to reproduce this drawing or any part thereof Except for manufacture by vendors of Atari Inc and for manufacture ufider the corporation s written license no right to repro Guce this drawing is granted or the subject matter thereof unless by written agreement with or written permission from the corporation 71 102201 U S 25 25 Coin Door 71 103202 U S 25 25 25 Coin Door 71 103203 U S 25 25 1 Coin Door 71 102204 German 2 DM 1 DM Coin Door 71 103205 German 1 2 5 DM Coin Door 99 10070 99 10083 99 10055 thru 99 10059 Button Cover 99 10074 Lock thru 99 10092 and 99 10108 Price Plate 75 918S Hex Nut 75 915S Hex Nut Frame 71 102206 German 1 DM 5 DM Coin Door 71 102207 Belgian 5 75 Fr Coin Door 71 102208 Swiss 1 Fr 1 Fr Coin Door 71 102209 Japanese 100YH00Y Coin Door 71 102210 British 10 P 10
23. Assembly for U S 1 00 German 2 DM and Italian 100 Lire Coins gold wire 99 10045 Coin Switch Assembly for German 5 DM U K 10 P and Australian 20 Coins green wire 99 10047 Lockout Coin Assembly 99 10048 Coin Door Harness Assembly 46 Part 99 10049 99 10051 99 10052 99 10054 99 10055 99 10056 99 10057 99 10058 99 10059 99 10061 99 10062 99 10063 99 10065 99 10066 99 10068 99 10070 99 10071 99 10073 99 10074 99 10075 99 10076 99 10077 99 10078 99 10080 99 10081 99 10082 99 10083 99 10084 99 10085 99 10086 99 10087 99 10088 99 10089 99 10090 99 10091 99 10092 99 10094 99 10095 99 10096 99 10097 99 10101 99 10102 99 10103 99 10104 99 10105 99 10107 99 10108 Centipede Figure 24 American Made Coin Door continued Parts List Description Locking Arm Assembly Coin Door Frame Coin Return Lever Coin Button Housing Coin Return Button Cover for Japanese 100Y Coin Coin Return Button Cover for German 1 DM and Swiss 1 Fr Coins Coin Return Button Cover for U S 25 and Belgian 5 Fr Coins Coin Return Button Cover for U S 1 00 German 2 DM and Italian 100 Lire Coins Coin Return Button Cover for German 5 DM U K 10 P and Australian 20 Coins Coin Return Bezel Coin Return Button Right Half of Coin Inlet Chute Coin Return Box Coin Return Cover Coin Chute U S 25 Price Plate Slam Switch Assembly Test Switch Decal Lock Assembly Black Switc
24. Graphics 037419 02 Rear Access Panel does not include lock 037427 01 Rear Access Panel Foam Pad 037443 01 Blue Cardboard Monitor Bezel 037443 02 Cardboard Coin Deflector 178013 001 Spring Draw Latch 178034 024 34 Inch Black Plastic T Molding 30 TM Centipede ini CAUTION E 78 2 i Pd 75 9910N0 160013 001 Players may receive electric shock if 9 Stamped Nut Leaf Sw this control panel is properly grounded After servicing any parts on Button Holder 178030 001 the panel check that the ground wire is Pushbin Assy firmly attached to the metal tab on the inside of the control panel Only then should you lock up the game A037408 01 gt Pnl 033127 01 Sw Bushing A037435 01 Harness 75 9910 0 Stamped Nut NOTICE TO ALL PERSONS RECEIVING THIS DRAWING CONFIDENTIAL Reproduction forbidden without the spe cific written permission of Atari Inc Sunnyvale CA This drawing is only conditionally issued and neither receipt nor possession thereof confers or transfers any right in li cense to use the subject matter of the drawing or any de 62 039 sign or technical information shown thereon nor any right to reproduce this drawing or any part thereof Except for LED Switch manufacture by vendors of Atari inc and for manufacture i i under the corporation s written license no right is granted NOTE Gr
25. Left acceptor activates one coin counter center and right acceptor activate another coin counter Not for any currently designed 3 mech coin door Left center and right acceptors acti vate 3 coin counters separately Manufacturer s suggested settings F Game Play Atari s Centipede game is a one or two player game with a color raster scan monitor The fast mov ing action includes a variety of creatures dropping down from the top of the screen or flying in from its sides most of them to attack the player The play er s shooter is represented on the screen by a some what humanoid head The player s goal is to shoot at and destroy as many of these creatures and mushrooms as possi ble for a high point score before the player s lives are used up Players can maneuver their Trak Ball control anywhere within approximately the bottom tifth of the screen However they must move around mushrooms since these are fixed not transpar ent objects A fire button shoots individual shots upwards or fires a hail of shots if pressed constant ly Only one shot appears on the screen at a time The game has five possible modes of operation attract ready to play play high score initial and self test Self test is a special mode for checking the game switches and computer functions You may enter this mode at any time When entered all game credits are cancelled Wait at least eight seconds after a
26. N M L J 1 G c B Centipede Figure 6 Self Test Procedure continued Results if Test Fails 1 Begin RAM FAILURE is indicated by one to 10 beeps Note the number of beeps and determine which RAM may be bad To restart the test press the reset pushbutton on the game PCB or set the self test switch to off then again to the on position Possible Bad RAM Chip Location H2 F2 K7 K5 17 L5 M7 M5 N7 10 N5 Any bad RAM must be replaced before the computer can check the other 5 as well as continue with the self test Number of Beeps Given CARON ROMIPROM FAILURE is indicated by two groups of numbers in the upper left corner of the screen The number at the far left indi cates the location of the failing PROM ROM s Identify the bad ROM PROM with the table below If the screen displays gar bage or the logic produces strange audio or randomly activates the coin counters the chip at location J1 is probably bad Ignore the hexadecimal numbers just to the right of the chip location number Failing ROM PROM Displayed Number Chip Location 0 D1 1 E1 2 F H1 3 or garbage J1 ADS 4 E5 5 B C D3 f you replace or erase this ROM the number 4 FF will be dis played throughout the self test The next time you enter self test the 4 disappears after a game is played Otherwise the self test will continue to display the numbers 4 FF 2 Trak Ball Test The chara
27. P Coin Door Centipede 72 JA1405B Screw 99 10054 Btn Housing 72 HA1404C Screw See 99 10061 Bezel 99 10066 Cover 72 JA1405B Screw 99 10048 Harness not shown for clarity 71 102211 Australian 20 20 Coin Door 71 102212 Italian 100 L100 L Coin Door 71 102213 U S 50 50 2 x 25 Coin Door 71 103214 U S 50 50 50 Coin Door 71 103215 U S 50 50 1 Coin Door Figure 24 American Made Coin Door 71 10 45 Centipede Figure 24 American Made Coin Door continued Parts List Part No Description 31 1N4002 100V Silicon Rectifier 1N4002 Diode 65 441C General Usage Low Force Miniature Switch 70 11 47 Miniature Bayonet Base Incandescent Lamp Type 47 71 1201ADU U S 1 00 Coin Mechanism 71 1201FCH Swiss 1 Fr Coin Mechanism 71 1201MG German 1 DM Coin Mechanism 71 1202MG German 2 DM Coin Mechanism 71 1205FB Belgian 5 Fr Coin Mechanism 71 1205MG German 5 DM Coin Mechanism 71 1210PE U K 10 P Coin Mechanism 71 1220CA Australian 20 Coin Mechanism 71 1225CU U S 25 Coin Mechanism 71 12100LI Italian 100 Lire Coin Mechanism 71 12100YJ Japanese Y100 Coin Mechanism 72 HA1404C 84 x 14 4 Slotted Pan Head Thread Rolling Tri Fluted Cadmium Plated Screw 72 JA1405B 4 x X Inch Slotted Pan Head Thread Rolling Tri Fluted Plastite Black Screw 72 94065 84 40 x
28. Return Button with Australian 20 Price Plate Coin Return Button with Italian 100 Lire Price Plate Coin Return Button with U S 50 2 x 25 Price Plate Left Half of Coin Inlet Right Half of Coin Inlet Side Plate of Coin Return Box Base Plate of Coin Return Box Switch Bracket Flap for Lockout Coil U S 25 Coin Return Cover Switch Adjuster Bezel for Coin Return Button Bezel for Coin Return Cover Coin Return Lever Lockout Coil Coin Switch for U S 25 Lamp Holder Spring for Coin Return Button Spring for Lockout Coil Pivot for Coin Return Lever Retaining Screw Screw for Both Bezels Switch Cover Dual Entry Frame Hinge Screw for Hinge Coin Door Frame Clamp for Frame Screw for Frame Lock Assembly
29. Self Test Switch o Volume Control and Option Switches Figure 6 Instruction Centipede Self Test Procedure Results if Test Passes if results are not as indicated see list of failures that follows 1 Begin Set self test switch to on position see Figure 5 2 Trak Ball Test Roll the Trak Ball control in all directions 3 Switch Test One after another activate and release all 3 control panel switches the slam switch and coin door switches 4 Audio Chip Test One after another press and hold 2 of the control panel switches and at least one of the coin door switches 5 Audio Channel Test Press 1 player start button four times 6 Background Color Test Press 1 player start button at least eight more times 7 Object Color Test Press 2 player start button at least 16 times 8 Moving Object Test Watch the screen and move the Trak Ball around Place the moving object in an open area of the screen Press fire but ton several times 9 Erasing the High Score Table optional The current three highest scores are held in permanent memory even if the game is The monitor displays the picture below The game produces no sound at all The two LEDs will stay on throughout self test The centipede head moves around on the screen in directions corresponding to Trak Ball control As long as you activate close each switch you ll hear a high beep Volume increases and pitch decrea
30. TTRACTION PANEL COLOR MONITOR CONTROL START SWITCHES CENTIPEDE GAME PCB A REGULATOR AUDIO PCB POWER SUPPLY CONTROL PANEL COIN DOOR POWER ON OFF SWITCH INTERLOCK SWITCH Figure 1 Overview of Game WARNING SHOCK HAZARD Connect this game only to a grounded 3 wire outlet If you have only a 2 wire outlet we recommend you hire a licensed electrician to install a grounded outlet Players may receive an electric shock if this game is not properly grounded These new parts as well as all other major parts in the game are illustrated in Figure 1 Throughout this manual wherever one of these new parts is mentioned you will see this symbol B Game Inspection This new game is ready to play upon removal from the shipping carton However your careful inspec tion is needed to supply the final touch of quality control Please follow these steps to help us insure that your new game was delivered to you in good condition 1 Do not plug the game in yet 1 Examine the exterior of the game cabinet for dents chips or broken parts 2 Remove the screws that were used as extra se curity to seal the rear access panel Unlock and open this panel as well as the coin door inspect the interior of the game as follows Check that all plug in connectors on the game harness are firmly seated Replug any connectors found unplugged Don t force
31. Unplug the har ness connector just behind the board 23 Centipede 3 Remove the two plug in connectors on the speaker Remove the speaker from the wood board and replace it 4 Toreplace the fluorescent tube slightly rotate it up or down and carefully remove it from the lampholders 5 Replace with a new tube Never force the tube into the lampholders you may break it causing an implosion 6 Also check that the green ground wire is secure ly attached to the large metal bracket and the ce ballast transformer behind the wood panel If the lamp is not grounded it may not start 7 If you removed the light and speaker assembly reconnect the harness connector then reinstall the assembly Replace the attraction panel on the front of the game G Game Operation With this manual you received two large sheets that contain the wiring and schematic diagrams for the Centipede upright game Sheet 1 Side A in cludes a table of contents that shows the arrange ment of these diagrams They explain the functions 24 of the circuits the diagrams also define inputs and outputs Atari s Centipede is a microprocessor con trolled game The microprocessor is mounted on the game PCB The game PCB receives switch inputs from the control panel and coin door These inputs are processed by the game PCB and output to the monitor Regulator Audio 11 PCB loudspeaker and control panel The Regulator Audio
32. Y 5 182 1st printing Operation Maintenance and Service Manual Complete with Illustrated Parts Lists Centipede Table of Contents Location Setup A New Features 2 8 1 3 C 3 1 Voltage Plug Selection 4 2 Interlock and Power On Off Switches 4 Self Test Procedure steals RU 6 E Option Switch Settings 9 1 Bonus Play 9 2 Coin Mechanism Multipliers 2 ccc cee eee eee eee 9 3 Examples of Game Price Settings 9 F Game Play n Oke aoe BAe 13 1 Attract MOd eros eR EE ee ha e dpa BOXES 13 2 Ready to Play Mode 14 3 Play EE 14 4 High Score Initial Mode 16 Maintenance and Repair KA COleaning Tunt et vies a es 18 Fuse Replacement Levi reperi meree ee ia aka ee nr eee 18 C TheControl Panel cece t aaea hern 18 1 LED Start Switch Replacement 19 2 Leaf Switch 19 3 Mini Trak Ball Maintenance and Re
33. aphics decal is to reproduce this drawing or the subject matter thereof un not field replaceable less by written agreement with or written permission from the corporation Figure 18 Control Panel Assembly A037409 01 A Parts List Part No Description A037408 01 Control Panel with Graphics A037435 01 Control Panel Harness 62 039 SPDT Momentary Contact Pushbutton Start Switch with Red Light Emitting Diode 75 9910NO 5 11 Steel Stamped Nut 75 9910W0 32 Steel Stamped Nut 78 6900402 Vinyl Foam Single Coated Adhesive Tape 4 Inch wide x Inch thick 24 in required 033127 01 Black Mo ded Switch Bushing 160013 001 Leaf Switch and Button Holder leaf switch only is part no 160012 001 178030 001 Pushbutton Assembly 31 Centipede NOTICE TO ALL PERSONS RECEIVING THIS DRAWING CONFIDENTIAL Reproduction forbidden without the spe cific written permission of Atari Inc Sunnyvale CA This drawing is only conditionally issued and neither receipt nor possession thereof confers or transfers any right in or li cense to use the subject matter of the drawing or any de sign or technical information shown thereon nor any right to reproduce this drawing or any part thereof Except for manufacture by vendors of Atari Inc and for manufacture under the corporation s written license no right is granted to reproduce this drawing or the subject matter thereof un less b written agreement with or written permission
34. arings Each Mini Trak Ball control has six bearings For further instructions on how to replace the ball either coupler PCB or either encoding wheel see Figure 11 19 P Centipede 20 Figure 11 Disassemble in the order indicated Circled numbers match the steps described below Ball Replacement 1 First remove the entire Mini Trak Ball assembly from the con trol panel as shown in Figure 11 Now locate the six twin lead thread forming screws in the black frames or plastic pieces remove these six screws 2 Lift off the top frame remove and replace the ball Coupler PCB and Encoding Wheel Replacement 3 Lift the PCB out of its slot Carefully unplug the red connec tor on the coupler PCB 4 replace either encoding wheel remove the PCB from its slot Remove the socket head machine screw flat washer and split lock washer that secure the encoding wheel Remove the wheel When replacing the coupler PCB be certain that the black metal encoding wheel has not been bent or damaged It should turn freely between the two halves of the red photo sensor device LUBRICATE HERE 6 PLACES Mini Trak Ball Maintenance and Repair Monitor Removal The following procedure should only be per formed by a qualified service technician WARNING Shock Hazard High voltages may exist in any televi sion or monitor even with power discon nected Use extr
35. continuity 5 f the contacts do not operate sharply or always remain closed or open then replace the LED switch as outlined in the figure 2 Leaf Switch Replacement The leaf switch on this game operates on 5 volts at a very low current Therefore pitting of the switch would be extremely rare Probably the only reason that pitting would occur is that the game is in very high humidity locations Centipede Don t burnish the switch contacts Burnishing them removes their plating thus increasing the cor rosion of the contacts The best method of cleaning the switch contacts is to wipe them with a non abra sive surface A business card works very well To replace the switch remove both of its screws with a Phillips head screwdriver If the white button itself needs to be replaced turn the stamped nut with a wrench in a counter clockwise direction as seen from the inside of the control panel The white ring on the outside of the control panel should not spin due to its design NOTE Adjust switch for narrow gap When a switch button is depressed the resulting wiping action of the contacts provides a self cleaning feature 3 Mini Trak Ball Maintenance and Repair To maintain this control lubricate the bearings approximately every 3 months or every 6 000 credits The number of credits can be read off the coin counter located on the coin door Use only 2 drops of 3 in One oil in each of the ball be
36. control for details see this chapter Centipede NORMALLY CLOSED N C CONTACT NORMALLY OPEN CONTACT rN jf fo 1 1 3 LIGHT EMITTING DIODE_ _ COMMON L E D CONTACTS To remove LED switch Remove all wires from the faulty switch Turn the switch counterclockwise while holding the black cone shaped bushing on the outside of the control panel Install a new switch using the reverse procedure CAUTION Players may receive an electric shock if this control panel is not properly grounded After servicing any parts on the panel check that the ground wire is firmly attached to the metal tab on the inside of the control panel Only then should you lock up the game Reconnect the harness wires BROWN VERT MOTION PCB GREEN RED BLACK amp YELLOW WIRES GREY RED BLACK GREEN WHITE WHT BLK STRIPE RED HORIZ MOTION PCB BLUE RED BLACK amp VIOLET WIRES BLACK Figure 10 Opening the Control Panel and Replacing Switches A Cleaning B Fuse Replacement 38 This game contains six fuses all on the power Vb of the gue supply assembly not including the monitor fuses and non Replace fuses only with the same type as listed abrasive household cleaner If desired special coin Figure 22 of this manual See the color monitor man machine cleaners that leave no residu
37. cter doesn t move in same direction as ball jumps rather than moves smoothly or doesn t move at all One of the Coupler PCBs on Trak Ball control may be bad harness wires or connector may be loose Trak Ball reading circuitry on Game PCB may be bad or Trak Ball bearings may need olling 3 Switch Test Sound is constantly on even though you are not activating any switch Or no beep is given for any switch or LED is dark Indi cates a bad switch loose harness wires bad LED driving circuitry volume turned all the way down or loose connector 4 Audio I O Chip Test No increase in volume or decrease in pitch indicates bad custom audio I O chip at location B C D3 5 Audio I O Channel Test On one out of the four activations no audio is produced Indicates one channel is bad in the custom I O audio chip at location B C D3 replace entire chip 6 Background Color Test Background doesn t change color or doesn t display all 16 colors Indicates bad color RAM chip RAM failure would have been indi cated earlier with from 3 through 10 beeps 7 Object Color Test Objects don t change color or don t display all 16 colors RAM failure 8 Moving Object Test Object doesn t change to another object ROM RAM failure Option Switch Settings 1 Bonus Play Feature Centipede offers a bonus play for certain com binations of coins inserted This bonus feature is operator selectable meaning you may choose to o
38. e Figure 20 034536 02 Vibra Damper A037453 01 A037454 01 or Power Supply Assy A037455 01 see Figure 22 Power Cord 037243 01 Plate 2 037470 01 On Off Sw Mtg Plate ei 009992 01 On Off Sw Cvr Figure 17 Cabinet Mounted Assemblies A037397 xx A 29 Centipede Figure 17 Cabinet Mounted Assemblies continued Parts List Part No Description A035943 01 Deep Well Coin Box Assembly for all the same coins A035943 02 Deep Well Coin Box Assembly for two different denominations has one separator A035943 03 Deep Well Coin Box Assembly for three different coin denominations has two separators A037433 01 Main Harness Assembly 037450 01 Interlock Switch Bracket Assembly modified for safety A037453 01 Strain Relief Power Cord U S A037454 01 Strain Relief Power Cord Austria Belgium Chile Denmark Finland France Germany Greece Indonesia Italy Netherlands Norway Spain Sweden and Uruguay A037455 01 Strain Relief Power Cord Australia and New Zealand A037456 01 Power Harness Assembly A037470 01 Power On Off Switch Mounting Plate Assembly The following six items are the technical information supplements to this game DP 182 01 Centipede Upright Schematic Drawings Sheet 1 DP 182 02 Centipede Schematic Drawings Sheet 2 ST 182 Centipede Label with Self Test Procedure and Option Switch Settings TM 160 Instruction and Service Manual for 19 Inc
39. e can be ob ual forthe monitor fuse data tained from your distributor C The Control Panel The large monitor shield and the attraction panel are made of tempered glass and should be scratch Prior to repairing or replacing any switch or the resistant if cleaned without abrasive substances Mini Trak Ball on the control panel unplug the you should hardly ever have to replace them game Then open the coin door 18 Reach through the coin door opening and open the luggage style latch located at each end on the underside of the control panel see Figure 10 Lift up on the control panel at the topmost edge and tilt it towards you The edge of the control panel next to the monitor shield has foam tape applied to it This tape acts as a cushion for the glass and prevents spilled liquids from entering the cabinet interior Always make sure this tape is in good condition 1 LED Switch Replacement The light emitting diode LED switches on the control panel have a very low failure rate In case a switch should ever be suspect first test it per the description that follows To replace the switch refer to Figure 10 Remove the wires from the suspected switch 2 Set multimeter to ohms scale Set ohms scale to Rx 1 then zero the meter 3 Connect multimeter leads to appropriate LED switch contacts see Figure 10 for designation of switch contacts 4 Check contacts push and release the switch button for closed and open
40. eme caution and do not touch electrical parts of the yoke area with your hands or with metal objects in your hands implosion Hazard If you drop the monitor and the picture tube breaks it wili implode Shattered glass and the yoke can fly 6 feet or more from the implosion Use care when re placing any monitor Disassemble in the order indicated Circled numbers match the steps above Centipede To remove the color monitor follow steps 1 thru 6 below Refer to the accompanying Figure 12 1 sure the game is unplugged from its wall out let Unlock and open the rear access panel coin door and control panel 2 Remove the glass monitor shield Carefully re move the four staples that secure the blue card board bezel As an extra precaution we highly recommend you discharge the high voltage from the picture tube 3 Standing at the rear opening of the game locate the 2 pin and 6 pin harness connectors for the monitor Unplug both of these 4 At the bottom rear of the monitor chassis is a wood screw that secures rear part of the chas sis Remove this screw 5 From the front of the cabinet locate the flat washers and self locking hex nuts two sets un derneath and two sets above the monitor screen This hardware attaches the monitor to the cabinet Remove this hardware 6 Carefully pull the monitor chassis out of the cabinet towards you Figure 12 Monitor Removal
41. eramic Disc 25V Radial Lead Capacitor C5 C14 1 Ohm 5 14W Resistor R10 19 10 Ohm 5 4W Resistor R11 20 29 30 100 Ohm 5 14W Resistor R4 12 22 1K Ohm 5 14W Resistor R27 28 10K Ohm 5 14W Resistor R13 14 270 Ohm 5 W Resistor R1 33 Ohm 596 4W Resistor 3 9K Ohm 5 14W Resistor R6 5 6K Ohm 5 4W Resistor R32 33 7 5K Ohm 5 14W Resistor 7 220 Ohm 5 V2W Resistor R9 21 22 Ohm 5 10W Wirewound Resistor R31 001 uf Ceramic Disc Minimum 25V Radial Lead Capacitor C2 7 16 22 uf Ceramic Disc 25V Capacitor C6 8 15 17 Type TDA2002A 8W Linear Audio Amplifier Integrated Circuit 05 7 35 Centipede uone1odjoo y 36 onc 265355885892 5 8 08955500520 5 lt 0 820855 2mm 4 555853 824 288593829540 5599 6 28 lt gt gt 894 7 003 Soho 20 032m 23 35 93052 2 3820 3202403 50253 65050 05902 2323 5052580 gt oaz7S9Pocz 955659392790 5 2 5595505955920 8 5 2050280 29 5 20 sam 59505 5295 51 Soap 3 at 5 PEEL TaS 3 80483002 95 2253 75 8 87 50062509055 2 lt 389328 5 02650 8 3 gt
42. f fer it or not For example with your game set at 50 per play players who deposit four successive quarters or a 1 00 coin then press the start button will receive a bonus coin Therefore players receive 3 plays for 1 00 This bonus feature encourages players to insert more money than just the minimum 50 you could require for one game Various other bonuses are available see Figure 8 2 Coin Mechanism Multipliers Available since early in 1980 Atari games have a new coin door which has either two or three mecha nisms All recent Atari game PCBs identify the dif ferent mechanisms in a certain pattern The right coin mechs are all the same to the game s logic regardiess of whether you have two or three mechs in your door In addition the logic sees the left mech in a 2 mech door and the center mech in a 3 mech door as the same Refer to the diagram below This pattern is important for you to know so you can correctly set the multipliers for each mech The multipliers determine how much each mecha nism will be worth to the game s logic Centipede The basic unit of measurement is 25 which equals a multiplier of 1 Therefore if you have a 25 25 1 coin door you will probably want to set the center and right option switch multipliers at 1 x 4 The left mech in 3 mech door always has a value of x 1 you cannot change its value You can set these multipliers with toggles 3 thr
43. from the corporation 176010 106 6 PLACES 1 Screw 036191 01 Upper Frame 035936 01 Ball 035937 01 Bail Bearing 036193 01 idler 035931 01 Roller Shaft 035938 01 Wheel 75 014S 2 PLACES Washer 75 044S 2 PLACES Washer A036096 01 7248406 Harness 2 PLACES Screw 036 92 01 Lower Frame 034168 01 Label not Fe 035220 01 shown for clarity PCB Figure 19 Mini Trak Ball Assembly A036190 01 A 32 Centipede a TM Figure 19 Mini Trak Ball Assembly Parts List Part No Description 035220 01 Coupler PCB Assembly A036096 01 Harness Assembly 72 8406 84 40 x Inch Hex Socket Head Cap Alloy Steel Machine Screw 75 0145 4 Flat Plain SAE Standard Zinc Plated Steel Washer 75 0445 84 Zinc Plated Steel Split Lock Washer 034168 01 Label with Lubrication Instructions 035931 01 Roller Shaft 2 per assembly 035936 01 Mini Trak Ball 035937 01 Ball Bearing 6 per assembly 035938 01 Etched Encoding Wheel 036191 01 Upper Biack Plastic Frame 036192 01 Lower Black Plastic Frame 036193 01 Idler Shaft 7 per assembly 176010 106 8 x 3 Inch Cross Recessed Pan Head Thread Forming Twin Lead Zinc Plated Steel Screw 33 Centipede aS C23 1 ek luk 0 uoneJodaoo ay UJOJj uoissiuued JO uayjuM Aq 5501 un
44. game has been played before entering self test or turning off the power Otherwise you may erase the high score table 1 Attract Mode The attract mode begins when power is applied to the game after a play or high score initial mode or after self test This mode is continuous and is only interrupted when a game is paid for and accepted or when in self test In this mode the monitor displays two pictures simultaneously One of the pictures is operator selectable for one of four languages Placed in the center of the screen the picture shows the high score table game price and the bonus life achievement level If the operator sets the Centipede game for free play the game will not display a game price message The high score table shows the eight highest scores and their matching initials If you erase the special permanent memory see Figure 6 Self Test Procedure then this table will contain ficti tious scores and initials The table is redeveloped from subsequent games with scores of more than 12 102 points Subsection 4 High Score Initial Mode explains this table in more detail 13 Centipede Operators may choose one or two credit mini mums by selecting one of the option switch set tings on the game PCB see Figure 7 Game Option Settings If the game is set for a 2 credit minimum that message will be displayed on the screen No spe cial message appears if Centipede is set to the op posite setting
45. granted at every 10 000 points 12 000 points 5 15 000 points 20 000 points Hard game difficulty Easy ASS 1 credit minimum 2 credit minimum Manufacturer s suggested settings Refer to Game Play for information on game difficulty For pricing for credits see Figure 8 Changing toggles 3 7 erases the high score table 10 Centipede Figure 8 Game Price Settings The white block below contains Atari s suggested settings All Circled numbers refer to game pricing labels you should use numbers 1 thru 8 are toggie settings on the 8 toggle switch at lo with each situation labels are on the following page Use the cation N8 on the Centipede Game PCB the LEFT switch as label no 6 indicated with 6 only if you set toggle 8 at PCB sembly switch assembly 9 to off 50 PER CREDIT Bonus Bonus 75 2 credits No bonus 1 00 3 credits 1 00 3 credits Straight 25 Door 25 1 00 Door or 25 25 1 00 Door 25 PER CREDIT Bonus Bonus No bonus 50 3 credits 1 00 5 credits 8 7 6 Straight 2 25 Door 6 4 3 2 1 On Off 25 1 00 Door or 25 25 1 00 Door 11 Centipede Figure 8 Game Price Settings continued To achieve bonus plays all coins must be inserted before press The switch settings below relate to options for game price coin mechanism multiplie
46. grated Circuit C7 E8 L6 M6 P6 37 74LS157 Type 74LS157 Integrated Circuit D7 D8 E11 F8 48 K8 5 37 74LS163A Type 74LS163A Integrated Circuit A5 B5 M2 N2 N3 P2 P3 37 74LS166 Type 74LS166 Integrated Circuit H9 J9 37 74LS174 Type 74LS174 Integrated Circuit C6 D6 J4 37 74LS175 Type 74LS175 Integrated Circuit 8 E4 M4 37 74LS191 Type 74LS191 Integrated Circuit B11 C11 37 74LS244 Type 74LS244 Integrated Circuit 1 C1 H5 37 74LS245 Type 74LS245 Integrated Circuit 2 27 74LS257 Type 74LS257 Integrated Circuit D9 E10 K9 L9 P7 M8 M9 37 74LS259 Type 74LS259 Integrated Circuit M10 37 74LS273 Type 74LS273 Integrated Circuit B4 J6 37 74LS373 Type 74LS373 Integrated Circuit 35 37 74LS374 Type 74LS374 Integrated Circuit 37 74504 74504 Integrated Circuit 1 37 74574 74574 Integrated Circuit E9 F9 37 7407 Type 7407 Integrated Circuit 9 A B10 37 7815 15V Voltage Regulator VR2 37 7915 15V Voltage Regulator VR1 38 MV5053 Type MV5053 Light Emitting Diode Continued on next page 37 Centipede Figure 21 Centipede Game PCB Assembly continued Parts List Part No 41 3003 62 001 66 114P1T 66 118P1T 79 42C16 79 42C22 79 42C24 79 42C40 81 4302 90 102 90 6010 90 7005 90 7018 90 7033 020670 01 110000 102 110000 103 110000 104 110000 105 110000 152 110000 221 110000
47. h Electrohome Color Monitor or TM 168 Instruction and Service Manual for 19 Inch Wells Gardner Color Monitor TM 182 Centipede Operation Maintenance and Service Manual 19 9032 Volume Control 69 001 DPDT Self Test Switch for British made coin doors 71 2110 Panel Cartridge Lock Mechanism for rear access panel 75 07017 Spacer for Mounting Printed Circuit Boards 78 24012 5 Inch Beaded Nylon Tie Wrap for game PCB edge connectors 78 3201 Cabinet Leveling Leg 78 6900402 Vinyl Foam Single Coated Adhesive Tape Inch Thick x 144 Wide 2 x 24 in req d 92 049 19 Inch Electrohome Color Raster Scan Monitor or 92 051 19 Inch Wells Gardner Color Raster Scan Monitor 003053 01 Lower Attraction Panel Retainer 007882 02 Interlock Switch Cover 009992 01 On Off Switch Cover 030168 01 Volume Control Mounting Bracket also holds self test switch in games with British made coin doors 034536 02 Foam Vibration Damper Regulator Audio PCB 034536 03 Foam Vibration Damper for Centipede game PCB 035745 02 18 Inch Plastic PCB Retainer 035942 01 Deep Well Coin Box Separator 036262 01 Coin Box Bracket 036495 01 Speaker Grille 036498 01 Upper Attraction Panel Retainer 036686 01 Card of Game Pricing Labels 037243 01 Metal Base Plate located underneath power supply 037399 01 Cabinet Assembly includes legs and PCB retainers but not the rear access panel 037411 01 Attraction Panel with Graphics 037413 01 Monitor Shield with
48. h Wire for German 1 DM Swiss 1 Fr and Japanese 100Y Coins Silver Switch Wire for U S 25 and Belgian 5 Fr Coins Gold Switch Wire for U S 1 00 German 2 DM and Italian 100 Lire Coins Green Switch Wire for German 5 DM U K 10 P and Australian 20 Coins Miniature Bayonet Base Lamp Socket Wire Key Holder Switch Cover U S 1 00 Price Plate German 1 DM Price Plate German 2 DM Price Plate German 5 DM Price Plate Belgian 5 Fr Price Plate Swiss 1 Fr Price Plate Japanese Y100 Price Plate U K 10 P Price Plate Australian 20 Price Plate Italian 100 Lire Price Plate Fish Paper Insulation Toggle Switch U Type Fastener Fish Paper Insulation Left Half of Coin Inlet Chute Switch and Lockout Coil Bracket Sub Assembly Inner Panel with Levers Sub Assembly Anti Penny Flip Bar Retainer Anti Penny Flip Bar U S 50 Coin Return Button Assembly for two quarters U S 50 Price Plate for two quarters 47 Centipede 99 15038 Bezel for Button 99 15001 thru 99 15012 Ret Button 99 15052 aM a 2 Spring for Button pd Me we Pd 99 15051 lt gt Lamp Holder SR p y 99 15040 99 15026 Lever Coin Inlet 99 15056 Screw for Bezel lt 99 15025 Coin Inlet lt E PART OF 99 15036 99 15041 y Cover gt weer 99 15054 99 15055 99 15041 Pivot for Lever Retng Screw gt Lockout Coil 99 15053 gt lt
49. igures 24 25 036262 01 Coin Box Brkt gt 036686 01 Game Labels h f lari 035943 01 02 03 035942 01 78 3201 Separator Leg Figure 17 Cabinet Mounted Assemblies 037397 28 Centipede NOTICE TO ALL PERSONS RECEIVING THIS DRAWING CONFIDENTIAL Reproduction forbidden without the spe Schematics Self Test Label amp Manuals cific written permission of Atari Inc Sunnyvale This A drawing is only conditionally issued and neither receipt nor see parts list on following page possession thereof confers or transfers any right in or li cense to use the subject matter of the drawing or any de sign or technical information shown thereon nor any right to reproduce this drawing or any part thereof Except for manufacture by vendors of Atari Inc and for manufacture under the corporation s written license no right to repro duce this drawing is granted or the subject matter thereof unless by written agreement with or written permission from the corporation 037399 01 Cab t Assy 178034 024 A037456 01 Pwr Harness 035745 02 037443 02 Coin Deflctr PCB Retnr 034536 03 A037450 01 Vibra Damper Interl Sw Brkt Game PCB 00788202 see Figure 21 Interl Sw Cyr 75 07017 PCB Spacer 78 24012 PCB Tie Wrap A037433 01 Reg Audio PCB Main Harness se
50. ission of Atari Inc Sunnyvale CA This drawing is only conditionally issued and neither receipt nor possession thereof confers or transfers any right in or cense to use the subject matter of the drawing or any de sign or technical information shown thereon nor any right to reproduce this drawing or any part thereof Except for A037540 01 manufacture by vendors of Atari Inc and for manufacture 037469 01 Grd Wire M rp ea rea aol u Bracket less by written agreement with or written permission from the corporation Figure 23 Fluorescent Light and Speaker Assembly A037417 01 and 02 B Parts List Part No Description A037457 01 Light and Speaker Harness A0375 40 01 Ground Wire with Ring Lug 48 009 8 Inch High Fidelity Speaker 70 304 18 Inch 15 Watt Cool White Fluorescent Tube 79 561816P Spring Connector Wire Nut for 16 to 18 Guage Wires 99 11003 Fluorescent Lamp Starter 99 11009 Starter Socket 037469 01 Steel Lamp Bracket 142028 001 60 Hz 118 Voit Ballast Transformer used on A037417 01 assembly 142028 002 50 Hz 118 Volt Ballast Transformer used on A037417 02 assembly 179035 001 2 Pin Fluorescent Lampholder 42 Coin Inlet Chute 99 10101 Centipede NOTICE TO ALL PERSONS RECEIVING THIS DRAWING 99 10103 CONFIDENTIAL Reproduction forbidden without the Inner specific written permission of Atari Inc Sunnyvale 3 This drawing is only conditionally issued and neither wiLevers 75 948S receipt
51. le S Ji s COIN DOOR 8 Mr REGULATOR AUDIO II PCB Figure 16 Signal Distribution 26 Illustrated This chapter provides you with the necessary in formation for ordering replacement parts for your Centipede game Please note that for simplicity common hardware has been deleted from most of these parts lists This includes screws nuts wash ers bolts etc The parts lists are arranged in alphanumeric or der For example all prefix numbers come first Following this are numbers in sequence evaluated up to the hyphen namely 00 thru 99 then 000598 thru approximately 190000 When ordering parts from your distributor give the part number part name applicable figure num ber of this manual and serial number of your game This will help to avoid confusion and mistakes in your order We hope the results will be less down time and more profit from your game Centipede 92 049 036498 01 4 or 92 051 Upper Retnr Fluor Light amp Spkr Monitor see Figure 23 037411 01 Attract Panel 036495 01 Spkr Grille 003053 01 Lower Retnr 037413 01 SO Mon Shield Mini Trak Ball 037443 01 Mon Bezel see Figure 19 71 2110 Lock Control Panel Assy yon see Figure 18 178013 001 Latch d 037427 01 Foam 19 9032 Vol Ctrl Self Test Sw 030168 01 Bracket 037419 02 Rear Panel Coin Doors see F
52. namely 1 credit minimum The other picture surrounds the high score table game price and bonus life achievement level mes sages That picture displays a typical game play se quence with a field of colorful mushrooms through which a centipede crawls The spiders bounce in from the sides of the screen and fleas occasionally drop down from the top In addition scorpions will cross the screen at almost any point In this mode the action exactly duplicates a typi cal game played by a moderately skilled player the player s shooter moves freely within the limits of motion shooting at spiders centipedes fleas and scorpions Periodically the player is destroyed when a flea spider or centipede head or body col lides with the player s shooter All the colors on the screen change with each wave A new wave occurs when the player shoots all centipede parts remaining on the screen At this point a new centipede starts snaking its way down from the top of the screen The attract mode differs from real game play in that no head figures are shown at the top of the screen to represent the number of lives remaining no sounds are produced no scores are incre mented and none of the four player controls work At any time when the game is powered up if the coin door slam switch is closed you will hear a spe cial alarm sound This sound alerts location person nel that the game has been abused 2 Ready to Play Mode This m
53. nor possession thereof confers or transfers any right in or license to use the subject matter of the drawing 99 10096 Hex Nut 99 10095 or any design or technical information shown thereon nor Fastener any rignt to reproduce this drawing or any part thereof Ex Self Test Sw cept for manufacture by vendors of Atari Inc and for manufacture under the corporation s written license no 99 10052 right to reproduce this drawing is granted or the subject L matter thereof unless by written agreement with or written ever P di permission from the corporation 99 10071 Slam Sw 99 10073 Decal 75 14085 Screw E Part of 99 10095 s 75 9445 99 10096 Hex Nut Fastener 99 10063 Coin Chute 99 10040 99 10097 Insul Coin Chute 70 11 47 Lamp 99 10080 Lamp Socket 72 9406S Screw 99 10104 Bar Retnr 99 10041 Coin Counter 99 10105 Bar 99 10081 lt Key Hold 71 12 A Key 70 980 Coin Mech 75 944S 99 10102 Hex Nut Brkt Assy 65 441C 7236038 COIN RETURN 99 10005 Coin Sw Screw CHUTE Return Box 99 10068 99 10075 thru Coin Chute 99 10078 Lockt Coil Sw Wire 31 1N4002 Part 99 10042 thru 69 10008 of 99 10047 99 10045 Diode Retainer 75 1412S 99 10082 Coin Sw Assy Gered Cover Figure 24 American Made Coin Door 71 10 44 99 10012 thru 99 10022 and 99 1010
54. ntation Locate the two Phillips head screws that extend through the PCB and into the wood behind the PCB Remove and save these two screws and the two fiber spacers Remove the PCB from the interior wall of the cabinet by lifting it up and out of the wood slot P e M WM X o M c M M rA P _ ___ ___________ _________ REGULATOR AUDIO PCB CENTIPEDE GAME PCB Figure 13 Printed Circuit Board Removal 22 Centipede Figure 14 Fluorescent Tube Replacement F Fluorescent Tube and Speaker Replacement WARNING If you drop a fluorescent tube and it breaks it will implode Shattered glass can fly 6 feet or more from the implosion Use care when replacing any fluorescent tube To replace speaker or the white fluorescent tube behind the front graphics attraction panel follow this procedure see Figure 14 1 Be sure the game is unplugged from its wall out let Remove the three Allen head screws at the top of the game they secure the black metal re tainer for the attraction panel Lift the attraction panel up and out of its lower retainer If you need to replace the speaker remove the two Phillips screws that secure the light board to the cabinet and slide out the whole assem bly The fluorescent light and speaker harness has extra length so you can pull the assembly about one foot out of the game
55. ode begins when sufficient coins are ac cepted for a one or two player game It ends when the 1 player start or 2 player start pushbutton is pressed When this mode begins the message CRE DITS isdisplayed in the middle of the screen The pictures are otherwise the same as those shown in the attract mode If you select the two credit minimum and a player inserts enough money for only one credit the mes sage 2 CREDIT MINIMUM flashes on the screen un til enough coins for the second credit are inserted In addition CREDITS 07 is displayed if you have selected the option of two coins per credit and the player has inserted only one coin A credit is de fined as the cost for each player to play one game In other words two credits will pay for one player playing two games or two players playing one game 3 Play Mode The play mode begins when any flashing start pushbutton is pressed The mode ends when the player s last life is lost A player s shooter is enabled at the beginning of the play mode and the audio starts The appropriate LED start switch will then stay lighted until the end of the game At this point it will flash if any credit re mains The game begins with a playfield of randomly placed mushrooms A centipede starts snaking its way across from the center top of the screen The centipede changes direction when it runs into a mushroom or either the left or right boundaries of the playfield
56. onding interlock switch is broken from its mounting or stuck in the on position Line Voltage Range Voltage Selection Plug Color 90 110 VAC 100 Violet 105 135 VAC 120 Yellow 200 240 VAC 225 Blue 220 260 VAC 240 Brown This is the only plug provided on the U S power supply The in ternational power supply includes the other three plugs a VOLTAGE SELECTION PLUGS Figure 3 WARNING Fuse cover must be in place during game operation International Voltage Plug Selection Centipede an fo SWITCH SAFETY COVER INTERLOCK SWITCH POWER ON OFF SWITCH Figure 4 Interlock and Power On Off Switches Centipede D Self Test Procedure This game will test itself and provide data to dem onstrate that the game s circuitry and controls are operating properly The data is provided on the mon itor the light emitting diodes in the start switches and the game speaker no additional equipment is necessary Part of the self test procedure includes a display of the operator selectable game options Therefore we suggest you run the self test procedure anytime you need to change the game s options To run the self test follow the instructions out lined in Figure 6 VOLUME INCREASE TURN CLOCKWISE SELF TEST SWITCH EURO PEAN GAMES VOLUME CONTROL CENTIPEDE GAME PCB OPERATOR N SWITCHES Figure 5 Location of
57. pair 19 D eee ha mnn 21 E Printed Circuit Board Removal 22 1 Game PCB Removal 22 2 Regulator Audio II PCB Removal 22 F Fluorescent Tube and Speaker Replacement 23 G Game Operation 24 Illustrated Parts Lists illustrations and parts lists begin on page 27 Centipede List of Illustrations Figure 1 Overview of Game eee ha n 2 Figure 2 Installation Requirements 3 Figure 3 International Voltage Plug 4 Figure 4 Interlock and Power On Off Switches 5 Figure 5 Location of Self Test Switch Volume Control and Option Switches 6 Figure 6 Self Test eee teens 7 Figure 7 Game Option Settings ices ees Fea Era Riu gener ee Re Ke 10 Figure 8 Game Price SettingS eee eee eens 11 Figure 9 Coin Counter Option Settings 13 Figure 10 Opening the Control Panel and Replacing Switches 18 Figure 11 Mini Trak Ball Maintenance and 20 Figure 12 Monitor Removal eara ren e ER REX ERSTE LAE Y 21 Figure 13 Printed Circuit Board Removal
58. rs and bonus play This information is useful in case you need to temporarily set the Centipede game on free play or if you have German coin mechanisms in your door On On Off Off ing the start button The label no 6 shown below should be used only if you set toggle 8 at PCB switch assembly 9 to off Toggle Settings of 8 Toggle Switch on Centipede PCB at 8 LEFT switch when PCB is in game 7 6 5 4 3 2 Option On On Off Off On On On Off Off On Off Off On Off On On On Off Off On Off Off On On On Off On Off On Off Free play 1 coin for 2 credits 1 coin for 1 credit 2 coins for 1 credit Right coin mech x 1 Right coin mech x 4 Right coin mech x 5 Right coin mech x 6 Left coin mech x 1 Left coin mech x 2 No bonus coins 8 For every 2 coins inserted game logic adds 1 more coin For every 4 coins inserted game logic adds 1 more For every 4 coins inserted logic adds 2 more coins For every 5 coins inserted game logic adds 1 more coin For every 3 coins inserted game logic adds 1 more coin n the U S a is defined as 25 In Germany a coin is 1 DM Manufacturer s suggested settings 12 Game Pricing Labels A I 2 coins 1 play ATARI o 1 coin 1 ATARI jo E 2 coins 1 play ATARI e e 4 coins 3 plays QG 2 coins 11 3 coins
59. ry for part of the high score table This means that even if power is removed from the game the three high est scores will permanently stay in memory erase these scores follow the instructions in Figure 6 Self Test Procedure To insure starting the fluorescent light now in cludes a large grounded metal plate In addition the lampholder and ballast transformer used in c efe to e C KY erre eo 2 444 CS S S this assembly are Underwriters Laboratories Listed and Canadian Standards Association Cer tified The addition of a foam pad on the rear access panel insures that the safety interlock switch will be completely closed when you lock this panel Due to environmental factors these pan els can warp slightly which could cause a switch to remain open Additional Improvements The wiring harness has been redesigned so that signal and power wiring are now separated to provide ease of maintenance and troubleshooting Second all monitors used are UL Recognized and CSA Cer tified thus providing the most reliable and high est quality monitors available in the marketplace today In addition the power supply chassis has been fitted with a metal bottom plate making it a totally self contained unit Fourth the attraction panel and monitor shield are now made of tempered glass to facilitate cleaning and improve visibility Centipede MONITOR FLUORESCENT LIGHT SHIELD A
60. ses with each additional switch that is activated You ll hear a high beep for each press of the button Background color changes with each press of the 1 player start button Objects on playfield change color Each press of the fire button changes the moving object to another mov ing object At certain points in the series the object will disappear This is not a failure indication A unplugged If you want to erase these scores first check that the number 4 is not dis played in the far upper left corner of the screen If this number is not displayed then simultaneously press the start and fire buttons The 4 FF message in the upper left corner of the screen will then be displayed The average game time data will also be erased but still displayed on the screen If 4 is present then the scores will be erased when you return to the attract mode 10 End When satisfied with test set self test switch to off position Activate coin switches by inserting at least one coin in each coin slot You will not trip the coin counters as long as you stay in self test ALL SWITCHES amp TRAK BALL INPUTS C R COIN MECH MULTIPLIERS L R if you have a 2 mech coin door GAME DIFFICULTY SETTING o5 PLAYS 1 59 GAME TIME ENTIRE CHARACTER SET NO OF LIVES AT START OF GAME zx TOTAL NO OF CREDITS PLAYED AVG GAME TIME accurate to 3 secs AY X W Y T 5 g P 0
61. u 5 on the Centipede Game PCB switch assembly at lo cation N8 For exact settings of these toggles refer to Figure 8 3 Examples of Game Price Settings Figure 8 explains the options giving twelve exam ples of the most common U S situations The tog gles mentioned are all in the switch at location N8 they only relate to game price coin mechanism mul tipliers and bonus play You should set the toggles relating to other functions as you see fit although Figure 7 8 and 9 provide signs indicating Atari s recommendations Centipede Figure 7 Game Option Settings To change toggle positions on the switch assemblies you need not remove the game PCB The switches usually colored blue are easily accessible when the Centipede Game PCB is mounted in place When changing the options verify proper results on the moni tor display by performing the self test Note that changing an op tion on any of the following eight toggles will not cause an imme diate change on the monitor screen during the attract mode Toggle Settings of 8 Toggle Switch on Centipede Game PCB CENTER switch assembly when PCB is in game 8 7 6 5 4 3 2 at N9 1 Option On On Off Off On On On Off Off On Off Off On On On Off Off On Off Off On Off On Off On English 9 Off German On French Off Spanish 2 lives per game 3 lives 4 lives 5 lives per game Bonus life
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