1 TV Dash Installation Manual
Contents
1. LNAWNYLSNI DIGITAL CLUSTER CONNECTORS 5 LON Q3sn LON d LHM 2 1531 OQ 8 NIA 9A 7102 NOILIN I HO NIA 8A 8 NIA 3 NIA BA 510 153 IHL 9 5 LON A H aasn LON Jig lt LON XV V P ovo 227 8 EJ f 39N0u23 33 7 4 aasn LON 119 HOLVOIQNI 13IHS 03443434 39Vd JHL OL 09 N3AI9 1531 OG 1VNIWH3L vo d LON SI 151535 LON vob E o J aasn LON 1 JHL 31 N 2 NC v X ms T 20 24 H31S6119 LN3INNYLSNI IHL HN ril EY aasn LON WO S3HIM 12 5 1 LON 5300 STVNIWH3L T 3SOH1 5351 1VH1 NOLLONNA 31IHM 2 i KAER 831S012 STVNIWH3L OSL 1 335 0029 01 18 11 OLL W8 33S 5 NYNL 1331 AH311V8 SNIHSV 13 NYNL 1331 LL 11 001 V8 335 SINV38 IH 359V110A AH311V8 HOL1VOIQNI INV38 70 8 335 12. HOLO3NNOO O0 Om L9 HOLO3NNOO Japueg Jepueg 92er eng Japuag aden 24 Japuag ade aimssaig 1411 10321 LATHS uorjeuruinrr uorjeurunqr uorjeurun ry 103e3rpug HT 10je2rpu 5728 uorjeutumqr 10789 NOOS SIOIAHSIS uorjeuruin rp A Ty vig uorjeuruin I SNOIL1V201 HOLO3NNO2 Sz0oace Ot HV3H 318 1986 1988 GAUGE HOUSING W STOCK GAUGES NOOS 5 A M 8urureM Jojeorpu f 91 iojeorpu uraq IH 51798 NALSVA WNL 1 GOT GOT V SNOIL1V201 29 HOL93NNOOD 12 H0193NNOOD 1987 TO 1989 DIGITAL GAUGE CLUSTER 9 9000 _ 318 12 EE 15 uo penurjuo 687 13A HO 617 LHWNH8 SZ 789 0 238 33S HO1VODIQNI NOOS 3NIDN3 32IAH3
3. ZI ZI loye xrpupumnp W II IT 7 Japuas 8 OI ION OT 898 lojeorpu UINL 6 6 uoneummn loje3rpu 8 Japuag ainssalg iQ 8 Jojeorpup L L Jojeomu LJTHS 9 9 90 NOOS 6 4 ION Japuas 8 Jojeuropeedg A IN lojeompu ALIUNOAS Jojeuroqoe pt uoneumunpnp 8 uoneumnunpp e3er eng 5 1038201 035 0 Z 20 yu vH 1999 uoreurunp 25 HOL93NNOOD L9 HOLO3NNOO SNOI1V20139V9 SNOILV20O1 39VSf L9 H0193NNOD HOLO3NNOO HV3H 8315010 H31SfYIO S39V5 13NVd LNAWNYLSNI 1989 TO 1992 GAUGC HOUSING SPEED SENSOR HOOKUP Depending upon which year car you have you may have to install a speed sensor for your speedometer and odometer to work properly If you have a 1982 to 1986 Trans Am then you will need a sensor This is usually done at the cruise control transducer since there is a natural break in the cable from th
4. HEATER ONLY I P LOWER REINF 9 BRACKET CONVENIENCE CENTER MOUNTING BRACKET MAIN DRIVER BOARD INSTALLATION Your main driver board consists of the following functions the digital odometer the voice display system and the circuitry for the numeric readout option The Main Driver board screws down to the blue gauge housing and the red and black wires are for connecting the Main driver to 12 volts and ground It is also where you supply an audio source for the voice display The Voice Display circuit is a switched circuit meaning that it is not tied into the Main Driver Board power and you must supply it with a switched 12 volts This allows the circuit to be independently operated from the dash The audio from your front left speaker will give the signal needed to make the unit work Carefully strip away a little bit of wire from both conductors and splice in the attached wire already soldered to the board You ll notice that there 2 wires one is marked Speaker and the other is marked Speaker The wires going to the speaker are also polarity marked the one conductor with the white stripe on it is the Speaker and the plain black lead is the Speaker Use electrical tape to seal the connections once you ve made your splices Now when you apply 12 volts to the Voice Display circuit and have the radio turned on any audio source coming through the speakers will make the circuit function The od
5. INTISODUCTION Before we get into any technical assembly circuit description or system explanation would like to thank you for purchasing this new digital instrumentation package for your car You have chosen a product that has gone under tremendous research and design to give you the client and fan of the tv show the best possible product The vast amount of research that went into this was to give the most discerning fan the closest replica of one of the most highly recognizable cars in tv history While it would be impossible to offer every conceivable option that the show purported to have due to show to show inconsistencies production flaws and continuity errors you have received the best combination of looks style and functionality This well designed product will give you years of satisfactory operation The installation of this new product will not be difficult if you both familiar with the dash assembly of your car and you read this manual first to get a better grasp of what s to come This manual takes you from turning the first screw for dash disassembly to the final tweaking of your new layout With 12 years of fabricating the 1 TV dash product line and from ground up design of this new product much attention has been given to both the product design and installation to make it as simple possible You won t need to an electrical engineer or designer to install this product just have patience get a
6. 915 NYNL 1331 JHL 39 VLTOA 11 8 SNIHSV 3 HOLIVOIGNI NBC LH9IH 8 335 IH NIA 8A ZLL9 8 NIA 8A ANIA S NIA 9A 8119 O1 zi v k ko 5 LON 7 X JHL HLIM 5 LON 1735 5 N33S SV 2 12 HOL93NNOO 8315012 QV VA 1056 IHWNHS 335 H3MOd NOLLINDI SI TVNIWH3 H3HLONV lone LHR SS31NN 01 91 8 335 H NIA 8A ZLLD HO 8 NIA BA NIA 8A S NIA 8119 01 3H1 19 GNNO4 SI 32NVISIS3H 39 V110A 1934409 Q3AO0W3H 31890 AH311V8 3ALLVO3N S1N3W3HfISV3IN 39NVASIS3H SAVIN 3 8 LON 056 1 JONVLSISSY HOI 1430 3 NI HOLIMS 11 78 335 ISN 510 1531 LNONId 0 10 jaded snotAeud penurquo LNIWNYLSNI DIGITAL CLUSTER CONNECTORS uorum uorurunpp HT 6 5 1 TH d NOOS 6 51 9 uoneumnunpnp
7. Due to the high RF radio frequency generation from your dash electronics you on occasion notice some 2 bounce with your speedometer display reading While every effort to minimize this occurrence has been designed into the circuit design some bounce may still be apparent on some older cars due to the electrical system being less than ideal for the accuracy and intricacies of the digital circuits TROUBLESHOOTING Your digital gauges should be both troublefree and free from any problems right out of the box They have been designed to be bullet proof and under normal usage should give you years of pleasure occasion a component may become damaged or short out bad transistor may die a resistor open etc lf you ever have a problem with your products your first action should be to check all connections to make sure they are tight Many problems can be quickly fixed by making sure your sending unit connections are good and that none of the circuitboard connectors have come off or out Also make sure that there are no bent pins on any of the ribbon connectors if you ve removed and replaced the cables into the DIP sockets bent or broken pin on a connector renders that cable un useable and it must be replaced Take your time during installation to ensure that everything has been installed as outlined in this book If after checking all of your connections you find that therc is still a problem please conta
8. 3 LHM AHD ftl 7014 01 1149110 EL 3613 91510 H3MOd 05 LHW 18 ZL 2119 HO 8119 O1 7 2 LL 721 8 335 OL H3AWIG S3lH VA SDVLIOA 1 4 6 6 QV3H HO 3DVLIOA AH311V8 119 1 NO SIHON 93151710 LNIWNYLSNI 1935 S H3AIHQ JHL N33S SV 0123 318110 3 9 51531 00 2 121 3 092 1V SWHO 09 01 05 8 3 001 LY SINHO 0061 3999 4 1 1 LE NYL 51531 OG 1154 SWHO OL 01 XVN SINHO 06 1 4 553 110 H3HLONV 5531 01 S 08 9 51531 OQ lALdW3 01 O1 7113 SWHO 06 1ndNI 39 v9 71303 31890 AH311V8 3 11 93 S1N3W3HfISV3IN 39NVAISIS3H 4 262 13A 44 96 51 5 1035 33S HOLVOIQGNI 61138 315 3 S1N3W3HfISV3IN JONVLSIS3Y 1d32X3 NIHOLIMS 8 OSL 18 0029 01 1531 1 29 HOLO3NNOO 5515010
9. be used See circuit trace layout for location of where to onto the Mylar for those signals 91 5209 9 INNAD 91 lt 209 SN 20 89818 s203 NMW zt 99 yalyM s JM SINOATI AOD SIAN Cl pee Gv Grenz e 9108 ena POW cava 1 ION oq yan y p ge er mur D 3 1 anwa x Con 019 nre xL 89 5 o gt ma Gv 3 ewe gina gang 930g EE wabson Wwy nasad 1982 to 1985 GAUGE HOUSING LATHS NOOS ANIONG 5 01 BOLP aden 103221 uan 103e2rpug ureag tH 103eorpug HI ued uomeuruinjg punoin Zuue M YOLOANNOD 1 4 315 10 9 LN3IAQHASNI VI ZI Jajyawopaads 5198 punoar Jopuag aer o1nsso1g Japuag 103e2rpu IJOY uorjeuruinjr punog Japuag 1999
10. the digital gauges The signal wire ends will come to you with crimps on them you will then have to drill a hole in the back wall of the gauge housing to feed the signal wires thru Find a location where you will not damage the Mylar circuit trace Once a large enough hole is drilled for all 5 6 wires feed all the wires through the newly drilled hole Locate cach circuit function on the diagram below and using a long enough machine screw feed the head of the machine screw through the front opening where the gauge stud went through Now run the signal cable over the bottom of the machine screw and secure it on the proper signal copper pad with a nut The green wire for example will have to be secured onto the copper pad that is for the water temp The oil signal blue wire is secured onto the oil pressure pad and so on You also must make connections to the back of the gauge housing circuit Mylar to allow the telltale readouts on the speed display board to function It would be in your best interest to put a 7 connector inline connector between your dash and the gauge housing so you can remove the speed display board and have the gauge cluster isolated The readouts on the speed display board beneath the speed digits and are as follows from left to right Lo beam Hi beam VHF left turn signal UHF right turn f signal gt check engine parking brake CBZ choke which will probably never
11. to the dash and keeps the lower tv section from any slight up and down movement during hard driving It is advised that before you tighten down the dash you crawl under the dash and make any connections you need such as vox display ribbon connections speed signal wire connection odometer cable connection etc Once the dash is tightened down room under the dash is very tight and not to move around with MARK S CUSTOM KITS INC 2005 NOTE For proper operation good clean grounds M absolute necessity These digital gauges are very sensitive and rust oxidation on grounding points will give inaccurate readings and sporadic operation If you must run new ground wires from under the dash then do so Do NOT rely on the ground clips in the gauge housing They are notorious for not being a perfect grounding location for digital gauges GAUGC HOUSING CONNCCTIONS The diagram below shows the connection points for your gauges lf you have the 1982 thru 1986 cars then you can just push the small alligator clips into the metal spring clip fingers that the analog gauges were pushed into If you have the later cars you ll have to remove the whole cluster to get at the back of the housing The gauges themselves had the metal studs attached to them pushed through the housing and secured to the Mylar circuit trace on the back with nuts Your basically going to have to do the same thing with the signal wires from
12. RED IN 2 TORQUE SLOT OF LOCK PLATE 40 Nem COVER BEFORE ASSEMBLING 30 FT LB WHEEL Removing Steering Wheel Additional needed tools will screwdriver to pop the horn button off and 13 16 socket to remove the main retaining bolt along with a clip removal tool for the retaining clip on the top of the column mount You may want to lower your steering column if you have tilt this will make a little easier Next off will the factory dash pad which is held on by 4 screws in the defroster vent and 6 screws under the front lip of the pad Be careful when removing the screws in the defroster vent if you drop them down into the defroster it will destroy the unit and you will have to disassemble to defroster to replace it You will need 9 32 socket to remove the screws under the front lip of the dash Once off the dash pad will now just lift up and off You will also need to remove the trim plates that go around the gauges since you won t be using them It s always a good idea to keep all screws and plastic pieces should you ever decide to convert the car back to stock See diagram below for the trim plate removal Due to faderal regulations you must retain the factory stock speedometer installed in the car Fig 8C 2 Instrument Panel Carrier 1 TRIM PLATE ASM CLUSTER 2 BOLT SCREW 3 COVER LOWER 4 COVER LOWER L H LOWER TRIM PLATE ASM LH LOWER TRIM PLATE ASM RH
13. S 92 82 18 335 HO1V2IQNI 9NINHVM 059 IHW X18 12 18 4Nd ZLLD HO 8119 01 3613 5399 H3MOd aasn LON 17 78 335 Ov NHO 12 LON S3WLL TIY LY LOH 0E aasn LON LE 097 IHW 18 LON ZLLD HO 8119 01 1056 8 61 ISNA 41512 H3MOd O1 OD BO LLL V8 335 1531 OQ WIG ce Ps pipe atk LV LON SI 32NVLSIS3H 8l 10dNI OLVUNIO HO 1934409 4 5 LON LON 9 19 8 39 V 1d3H Sana S3UIM 1 340 LON 5300 STVNIINH31 5 1 8381 318110 JHL STVNIIWH31 17 SI 151534 5 LON 1934409 dl 096 91 2 35034 5399 39V110A 11 8 S 3513 1810 H3MOd LES WIS NYD 17 SL 8 33S 1 03345 312
14. ated Ribbon cables connect between the Main Driver Board and the Odometer Display Board Speed Display Board and the Voice Display Correct alignment of the ribbon cables is a must as inserting the cables wrong could damage many components and render your electronics useless Below is the layout of the Main Driver Board with the ribbon cable connectors and User Adjustable potentiometers is also here where you can in the pursuit and or auto cruise signals for the Voice Display Applying a 12 volt signal to either input pad will either make the Normal display on the Voice Display Board jump to Pursuit the Auto Cruise LED to come GND IGN 8 3 99 12 Lx Ces SSeS ee 1 DIG OIL DTHER NE I 2002 5 CUSTOM KITS 11 DIG VOLTAGE DIG WATER TELLTALE DIPL AY DIG FUEL L SPEED DDOMETERS e SPEED DISPLAY BOARD This board is where the speed signal from the sending unit installed inline with your cable from the transmission is fed The speed readout in both numeric and bargraph form take the signal from the cable and convert it into digital pulses The speed signal is connected to the white wire on the Main Driver board Please see the section on installing the
15. ct Mark s Custom Kits during normal business hours of 8am and 4 30pm M F and we will try and talk you through the problem WARRANT Y The electronics are designed to be as accurate as the cars electrical system will allow and are made using top name components from major companies such as Hewlett Packard National Semiconductor and Harris Corp 5 Custom Kits offers a limited lifetime warranty on the electronics that will cover the ORIGINAL purchaser in the unlikely event that something fails or ceases to function This warranty will NOT cover electronic failure under the following conditions Tampering Attempting to modify the products original design and operation This includes but not limited to un authorized repair attempts back engineering of circuit function un aufthorized part replacement Incorrect Installation If you have installed the electronics incorrectly and have damaged any part of the system you have hooked up the cables backwards and have damaged any components you have hooked up both 12 volts and ground in the wrong configuration Unsatisfactory automotive electrical environment If you have made extreme alterations to your cars electrical systems or have added any high power stereo system into your car or have done modifications to the original factory wiring or have replaced the factory sending units with non compatible substitutes Should any repairs be necessary you will instr
16. d tach readouts are the same By using the values set by the manufacturer your speed reading will be the more accurate than the old gauge And depending upon which you have you may need to have your digital gauges calibrated slightly different That is done during assembly and should have no effect on your installation In addition to function circuits your new 1 TV dash also has randomly sequencing circuits to give visual appeal to the whole layout and make it look like the car is doing diagnostics randomly If you ve ordered the color 5 inch CAT then you have video outputs for any source of video you can think a color camera a vcr etc You also have the voice display which when tied into the front speaker of the car will react with whatever audio is coming through the system SYSTEM LAYOUT Your new TV dash system is relatively to install since everything is based already calibrated and all that is needed is for 12 volts and ground to be applied and the various signals from the gauge housing description of the entire system will start from the left hand side of the dash and work towards the right Please note During the installation and following descriptions you may be directed to adjust small blue colored potentiometers ONLY adjust the ones you are directed to Any pot that is sealed with red locking material is NOT to be adjusted It will throw off the calibration and render your ga
17. e transmission for the transducer Basically there is a cable that turns with the transmission and this cable runs from the transmission to the cruise control transducer if you have cruise control The output of the transducer is then fed to the mechanical speedometer head which also utilizes the spinning cable to make the needle move in the speedo head If you do not have cruise control then you will have to have a local speed shop cut the cable from the transmission to speedo head and have the speed sensor installed inline The best location for this break is in the engine compartment before the cable goes through the firewall Once the cable is cut professionally and the sensor installed you will have 2 wires coming off the sensor One wire a black onc is grounded to chassis fo a bolt or screw either on the firewall if you ve had the cable cut or actually on the cruise control transducer where there is already a grounding nut and screw Feed the other wire from the sensor either a white or tan wire through the firewall and that is what you are going to hook up to the speedometer circuits white wire coming off the back of the Speed Display Board If you have a 1987 or later car there is no cable since GM went to electronic pulses for a new electronic speedo head You will have to access the signal pad on the back of the gauge housing like you did for the earlier signals See diagram for the speed signal copper pad location and attach the whi
18. event any pins from being bent and broken If that happens the cable is useless and the circuit function will not operate Please refer to the board layout diagrams for proper ribbon cable connection direction If installed into the sockets wrong then you will damage and or destroy some components If you ordered the numeric option then you will have to plug the various wires into the proper connectors in the gauge housing to give the numeric circuits their signals See the connector layout diagram for proper location of cach circuit s wires e Switchpods If ordered These are located in the pod ends and all that is need is for 12 volts to be supplied to them as well as ground There is no on off switch as once power and ground is applied they will light up and start sequencing e Overhead Console if ordered customized This console which is mounted to the headliner only needs 12 volts and ground for the name board to light up The colored switches located on the bottom are also tied in to light up when the first red switch is activated Since there 18 switches you have an ample number of switches to use for your own devices KIT NORMAL AUTO PURSUIT 2885 HLMP 2685 2685 2685 BOARD LAYOUT MAIN DRIVER BOARD The Main Driver Board is where the Voice Display Odometer and Numeric Readout electronics are loc
19. his will probably be the first time tearing apart your factory dash and there is nothing more daunting than wondering if you can do it and if you go too far will you be able to re assemble everything Weil once you take this plunge there is nothing that you won t be able to un do and in the meantime you will learn about how your car is assembled You will be able to reverse the process and put your car back to stock appearance should you ever want to It s just a matter of getting that first burst of intestinal fortitude to turn that first screw NOTE At this time it will be necessary for you to disconnect your battery at the negative terminal to prevent any shorting out of components during installation Since you will probably be putting your dash in at this time the first thing to remove will be the steeringwheel that will require a Steering Wheel Removal tool You will not be able to pull it off so don t even try This tool can be rented from any auto parts store or bought for about 30 See diagrams below for approximate procedure If you going to installing new Gullwing Steeringwheel then you will need special steeringwheel adapter kit from the auto parts store The kit you need will be from Grant and their number is a 73196 You l need this before you take off the old factory wheel since the new gullwing will not be mountable without the adapter 7 RETAINER 3 cANCELING CAM TOWER MUST BE CENTE
20. ight up in sequence The Voice Display circuit is a switched circuit meaning you must supply power to the circuit as it is not tied in to the main driver board power and will not automatically come on when the dash is turned on This allows isolated operation of the circuit to be controlled separate from the dash e Tach Display Board This display board shows you your engine RPM in both numeric and bargraph forms The brown wire coming off the back of the display board is what is connected to your Tach connector in the gauge housing Your Tach Display board also has a couple of randomly sequencing circuits that are fed signals from the tach board The speed of scan is adjustable by the user The small blue adjusting potentiometer on the back of the circuitboard can be adjusted to slow down or speed up the rate of sequencing e Telltale Display Board The telltale board is where your various levels bargraphs located You have bargraph for the voltage level oil pressure water temperature and fuel level These are calibrated for your car and should not need to be adjusted Also located on the telltale board is the alphanumeric display readout which has a fixed word and also has the Normal Power Pursuit and Cruise readouts Under normal driving conditions both the Power and Normal LED s will be lit If the Pursuit circuit is used when 12 volts is applied to the circuit it will
21. make the LED jump from Normal to Pursuit as long as the voltage signal is applied Once removed the LED will return to Normal status The Cruise LED only lights when a 12 volt signal is applied to the Cruise pad Even if you don t have cruise control you can still use this by putting a momentary switch with 12 volts one side to the Cruise pad and as long as the button is pushed the Auto Cruise will stay lit e COLOR CRT If you ve ordered this it can be used to display any NTSC video signal from a color camera GPS system It does NOT have any audio capabilities Numeric Display Board if ordered your dash comes with the bargraph readouts for your level gauges But if you want more accuracy the numeric option will allow you to sec exact readings for your various levels such as 12 3 volts 14 gallons of fuel 50 pounds of oil pressure or 185 degrees for your water The numerics are extremely accurate and calibrated for your cars factory sending units Main Driver Board This board which is mounted to the gauge housing is where the odometer circuit the voice display and the circuitry for the numeric option if ordered The Main Driver is connected to 12 volt and ground clips in the gauge housing The display boards visible from the front of the dash are connected to this board by ribbon cables must taken when plugging in the ribbon cables to pr
22. nk with additional power supplies and cooling These high power systems all contribute additional static and noise on the cars ground or chassis ground side And digital instruments are not normally filtered on the ground side of their design So you now have static electronic pulses high RF radio frequencies and other electronic trash invading the digital clusters circuitry Here are some more common issues that you may or may not see and their potential remedies Fuel level unsteady This is caused by the black fuel ground wire NOT being tied to a good clean ground screw Your fuel gauge is very sensitive and if the ground wire is not connected to a zero voltage level chassis ground then it will read above normal levels or fluctuate unnecessarily Always make a new drill hole close to the main driver board and make sure you have a good CLEAN grounding point for your fuel gauge Oilor water temp gauge unsteady or not working This usually is caused by either one of three possible conditions the original OEM sending unit is not as accurate enough and was just giving out a signal that the old mechanical gauge could read but barely Or the clips in the cluster housing are oxidized and need burnishing with steel wool on the film Mylar side of the cluster which is the backside Or the wiring between the sending unit and the cluster is cracked and or broken The original mechanical gauges are notoriously inaccurate as they are
23. nowhere near as precision made as the new gauges They were not as prone to ambient electrical noise as today s clusters Example how many times did you fill up your fuel tank and drive for days and it never moved then one day you noticed it bottom out and start reading the real level Tach reading not tracking properly Possible causes are that your electronics were calibrated for the wrong version engine say you have a V 6 and the gauges were calibrated for a V 8 Or vice versa OR the wiring from your distributor cap has corrosion or oxidation on any number of contact points Speed digit fluctuating off of zero when sitting still This is a common problem within older cars again because of massive issues with ground loops and or electronic noise coming down the ground chassis from other sources The electronics are designed to filter out as much noise as possible but if you have a car that has been out in the weather and has a lot of 20 year old corrosion or oxidation then your going to have some slight zero bounce due to an unsteady ground level Odometer resetting to zero There is only ONE cause for this problem and it all relates back to a ground loop issue That is any number of high current items such as headlights brake lights power antenna headlight motors etc have corrosion or oxidation on the grounding straps and there is some slight current leakage going onto the ground side of the car These power spikes go down the chas
24. obtain and install the various sending units such as water temp and oil pressure from an auto parts store and have them installed in your engine block If you already have the analog gauges then proceed to next paragraph For those of you who have the 1982 to 1992 Trans Ams your stock gauge set up is basically the same with only minor differences The old analog gauges will be removed and the new display boards and main driver board will be attached to the clips and or contacts on your gauge housing The method of attachment will be determined by the year of your car The older cars simply had the gauges pushed into the metal clips that make contact with the Mylar circuit trace on the back of the gauge housing whereas the newer cars had a slightly different method of attaching the gauges The whole idea behind the digital gauges is that they are more accurate and precise than your analog ones The error factor in the old style gauges is such that when your arrow is halfway on the oil gauge just how many pounds of pressure is that Same goes for all of the other gauges They as precise as digital systems be And the TV dash layout has numeric readouts for your level gauges to give you a far more accurate idea of your various levels And while your gas tank is 16 gallons when full there are only 10 L D s in the fuel circuit so that all 10 will be on when you have a full tank 5 on when half tank etc Your speed an
25. ometer function is automatic and does not require any operator efforts It will come on once power is applied to the Main Driver Board As long as the ribbon cable is connected to the Odometer Display Board it will show the mileage already set to your Main Driver The mileage is what you supplied mark s Custom Kits when you ordered the electronics It is resettable readout and will only show you the overall mileage There is no trip odometer function available in this dash layout If you ordered the Numeric Readout options the proper wires must connected to the dash gauge connectors to allow the circuits to function See the gauge housing layout for proper connect points If you have a 1982 to 1986 vehicle all you need to do is push the alligator clips INTO the gauges retaining clips If you have a 1987 or later car you will have to run the wires to the back of the gauge housing and retain them with a screw and nut to the circuit Mylar sheet The following wire colors are listed for circuit functions Blue wire Oil pressure Green wire water temperature Gray wire fuel level Fuel Ground Black wire for fuel circuit There are also red wires for 12 volts for the vox display circuit the 5 step sequencer In addition the audio input for the vox circuit is located on this board as well as speed input signal for the odometer and speed readout and the trip odometer reset pads for momentary switch to be soldered to for resetting the
26. s is because the electronic components have electrically drifted off their initial settings Once the circuit warms up the display should settle in on zero e Bad ground this is a major problem with digital instrumentation since they are much more accurate than the old analog gauges and require absolutely clean voltages and ground Any variation in the ground such as oxidation at the grounding point rust etc will give the electronics a false ground reading So instead of ground being zero volts it may float above zero ground potential by up to 1 volt throwing certain gauges off of calibration Make sure you find and use good clean grounding points ones that are not oxidized or oil covered With good clean ground points these gauges will be rock steady Bad signal connection from the gauge housing This will give erratic or sporadic signals and not give you good clean readings Always check your connections or stray signals on the ground side of your car This can happen if there is a cracked spark plug wire which is shorting over to chassis ground Your therefore have a 40 000 volt spark jumping to ground and sending very high frequency signals on chassis ground which is not fuse protected Incorrect gauge operation odometer reset problems or fluctuating displays and readings will be a good sign of a bad spark plug wire Unshielded wires from a high power stereo system Same symptoms as above NOTE
27. sending unit for directions on how to install the inline speed sensor You must have this in order for the speedometer to function Later year cars from 1987 to 1992 use the electronic speed signal from the gauge housing and do not need a sending unit installed inline The random sequencing circuits also located on the speed display board and have sequencing rate adjustment pot to either speed up or slow down the rate of sequencing The main odometer and trip odometer digits are located on this board as well as the telltale readouts for the various factory dash readouts such as left and right turn signals high and low beams check engine parking brake and choke See diagram for proper location The Signal Tuning bargraphs are also located this board too SIGNAL TUNING ON REAR SIGNAL TUNING ON REAR DASH TELLTALES MARK S CUSTOM KITS INC 202 TACH DISPLAY BOARD This display board is where your engine RPMs are displayed in both numeric and bargraph form The brown wire is for the tach signal and is coming off the board The tach ha already been calibrated for your car and the size of the engine cithe a V 6 or 8 engine The random sequencing circuits are also located on the speed display board and have a sequencing rate adjustment pot to either speed up or slow down the rate of sequencing MARK S CUSTOM DASH DIS ASSCMBLY T
28. sis ground and because the odometer circuit ground is not fused it will see this spike a reset the readouts to zero The only solution is to isolate which high current item makes your odometer digits reset and troubleshoot that circuits ground clips and clean burnish and re apply the ground screw to a new clean ground hole MARK S CUSTOM KITS INC 2005
29. te speed signal wire from the Speed Display board to the proper pad on the gauge housing P N 8901 SPEEDOMETER SENDER FOR GM TYPE TRANSMISSIONS BRASS COUPLING SPEEDOMETER This side to WHITE or WIRE Transmission 5 SM A BLACK WIRE FIGURE 1 GREEN BLACK p 4 BEEN B SIENAL TUNING DRIVER VOLTS NUMERIC READOUT DISPLAY 85 CALIBRATION Your digital dash has been carefully tested and calibrated for your year car and should not require any additional adjusting All adjusting potentiometers for critical circuits have been sealed to prevent any drift or misadjustment by the end user The only adjusting pots designed for user interface are the ones controlling the sequential LED bar scanning rate the rate of scaling up the Voice Display circuit and the 4 step sequencer rate of scaling once power is applied to that circuit There are some minor instances that might through the true initial calibration of your gauges off that are out of the control of both Marks Custom Kits and the end user xtreme temperatures allow for electrical drift in circuits In extreme cold when you first power up your dash you may notice that the speedometer display is showing anywhere from 3 to 5 MPH while the car is sitting still Thi
30. thorough understanding of what your about to do ask questions read and re read this manual and all should go well If at any time you have any questions regarding this product ane installation do not hesitate to contact Mark s Custom Kits for clarification and or assistance you may need during normal business hou of 7 30am to 4 00p Monday thru Friday at 321 697 5445 The most important concept to have going in on this project is to TAKE YOUR TIME Rushing the installation will only run the risk of installing something wrong and damage any number of electronic circuits Warranty repair will not cover any damage from mis installation or wrongful application So please be careful and take your time installing this high tech product If after reading this manual you feel that its installation is beyond your capabilities please do not attempt to try and fake Extensive damage can occur Seek assistance Mark s Custom Kits offers installation for those who don t have the know how or capacity to do the correct installation Contact the company should you want to have us install this system for you SYSTEM DESCRIPTION Before we begin it must be made clear that you MUST have the full analog gauges already installed in your dash Without these gauges and their sending units you will not be able to get the proper signals to make your new digital gauges work properly If you do not have the analog gauges you will have to
31. trip odometer ED Fiberglass Dash Installation The actual installation of the new fiberglass dash is rather simple Once the factory dash pad is removed you will be placing the fiberglass dash of the old cluster housing The outer edge of the new dash is designed to slide up against the windshield and the defroster vent openings will line up with the factory defroster vents There will be 3 or 4 holes already drilled into the fiberglass dash that should line up with the mounting holes on the factory firewall tabs Using the same long screws that you took out of the padded factory dashpad use those screws in the new fiberglass dash to secure your dash to the firewall mounting tabs NOTE CAUTION You MUST be very careful when screwing the screws into the defroster vent as to NOT drop the screws down into the defroster Should you drop any of the screws it will damage the defroster the next time you use it as the screws will jam the defroster fan blades If you drop the screws down into the defroster it will require the extraction of the screws by either dismantling the entire cluster assembly or the removal of the windshield to get down into the defroster Once your new dash is mounted on top of the cluster housing no further attachment will be necessary as the dash is well balanced and the only other optional item that you may want for cosmetic element would be the armrest console which ever so slightly gives front support
32. ucted by Mark s Custom Kits on how to proceed Any repairs needed that are shown to caused by the above reasons will be repaired at the current shop rates and will further negate any further warranty of that system CONCLUSION Your new digital instrumentation package has been designed with both authenticity and functionality in mind and will give you many years of troublefree operation Mark s Custom Kits has built a worldwide reputation for quality products and stands behind each and every item sold We hope that you enjoy the use of your new system and thank you for making the decision to purchase our products Additional Troubleshooting Your new digital electronics are a precision designed system to monitor and readout various signals within your cars dash cluster Because the older cars were not very well designed with regards to electrical interference new digital signals are prone to the noisy electrical environment that is so common on 20 year old cars In dealing with cars t hat are 20 years or older natural oxidation on ground screws as well as loose or corroded connections throughout the car make electronic problems common unless the car has had a frame off restoration And most people don t go thru that expense Also introducing electronic noise into the cars already noisy environment are today s newer and more powerful sound and stereo systems that are usually so big and powerful they are mounted into the tru
33. uges non calibrated e Digital Compass if ordered This display board is plugged into the compass sending unit which is mounted under the dash away from any speakers or other magnetic field The digital compass is very sensitive and is properly calibrated towards magnetic North A black mark on the small white sending unit must be aimed towards North in order for the dash to be set properly Odometer Display Board This board is where your main odometer digits are displayed It is connected to the main driver board via a ribbon cable to get the information from the odometer circuit Speed Display Board This board is where your speed is displayed in both numeric and bargraph form The numeric odometer digits are also located on the speed display board The speed signal is connected to the speed display board s white wire 2 ribbon cables to the main driver board connect the odometer circuit to the odometer digit readouts For both main and trip odometer operation and care must be observed when hooking up the ribbon cables to ensure proper odometer See hookup diagram in upcoming sections e Voice Display Board 2 ribbon cables to the Main Driver Board to receive the audio signals connect this display board You must hook up the front left speaker to the Main Driver Board to get the Voice Display to work Once power is applied to the circuit the 4 step sequencer on both the top dash trough and down along side of the bargraphs will l
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