Wave 125 S Panel Repair

Recently, a friend of mine is asking if i can repair his Honda Wave 125 S speedometer panel that is not functioning. No power, no activity. I said of course. so he handed it to me, and test. Before i opened the said panel, i needed to have a wiring diagram of the model, and here it is.
Although the picture seems blurred when i got it from a site, the color coding is enough for me to know which is the positive and negative line of the supply so that i can power up the board without having is entire bike, and so i powered the panel...NOTHING...no activity.







 My first visual inspection on the parts, i found out that one of the transistor at the regulator part have BLACK marks on its solder...it means it was burnt by a mistake somewhere by the owner on its motorcycle wiring that causes the panel to FAIL..


If you can see it on the picture TR102 solder, has a BLACK mark, so i immediately test it with my digital diode tester, Im not surprise of the outcome, there..the transistor pins are all shorted. in all probe points.







so I removed the said part, SMD semiconductors are easy to removed by the way if you have two soldering iron, with one a CHISEL point and a pointed one...


Be careful not to damage the foil path..when removing smd parts.









Some Smd semiconductors value are not actually printed on it, others uses MARKING code..so perhaps try to look for some downloadable SMD code cookbook for reference.



The code of this defective transistor is AJ..which is in my cookbook, stands for BCX70J. Since i have too many defective panel boards with parts still use able, just replaced it with a good one.Before i power it up again, i checked every component on the regulator side to see whether there are other damage components, fortunately NONE...so its time.



THERE!!!...it lights up..speedo needle spins and self calibrate, REPAIR DONE!!!














About MCircuits

45 comments:

  1. There are two pink wires going to the panel of this wave 125...one is from the speed sensor, the other was from the 4th gear panel indicator....the mechanic who used to service the bike actually short the two...that makes the TR102 gone berserk....

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  2. Sir, any idea what happened sa speedometer nang wave 125 S ko? These are the links:

    http://i645.photobucket.com/albums/uu178/mawix_alucard/Motorcycle%20Problem/Wave125problem1.jpg

    http://i645.photobucket.com/albums/uu178/mawix_alucard/Motorcycle%20Problem/DigitalMeter2.jpg

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  3. Please help sir. This is the problem with my wave 125:
    http://s645.photobucket.com/albums/uu178/mawix_alucard/Motorcycle%20Problem/?action=view&current=Wave125problem1.jpg

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  4. @anonymous....nalubog ba yan..possible all reflective film of the lcd is gone...if that's what happened...it cannot be repaired

    full replacement is needed

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  5. good day sir ,how can i drain the gas in my wave 125? coz im a newbie.please help sir.

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  6. Jhimry use can use two method, the slow method using the carburetor float drain plug (beneath the carb float) or the fast method using the hose before the fuel inlet switch.

    the slow method is useful if u do not want to remove your motorcycle body covers..just get at least 4 bottle of LITER SODAS and insert the drain plug hose to it and loosen the screw of the float drain plug.

    the fast method need you to remove the front covers and when the carburetor is already visible to you, pull the inlet hose of the carb and put it on the mouth of the soda bottle.

    that's it...

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  7. May bago akong biling speedometer ng wave s then nung kinabit ko nag power on nman may fuel level pumalo din yung needle then nag gear shift ako ng primera nung mag revolution ako para makita if tataas yung needle biglang nag power off as in no display i dont know if na fuse yung speedometer patulong nman po thankyou and Godbless

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  8. Sir ask ko lang po if naa adjust po ba setting ng automated lights on ng honda wave 125 latest model , lagi po kc naka on headlight kahit may araw na. TIA😄

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  9. may i asked is it posible to reset the milage reading of waves 125, mine reaches 99,999.99

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  10. Good day sir ask lng po ako my idea ka ba saan makabili ng speedometer ng wave s 125?

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  11. I have no idea where to buy brand new of a Wave S 125 speedometer panel. With the age model of this motorcycle, I think they are now via order basis on Honda Prestige..If you can find any defective one. I can help you repair it.

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  12. good day po sir yung akin po nman po ayaw mag mabuhay ng speedmeter kabibii ko lng po..yung ilaw lng po ang nbubuhay ksabay ng headlight.ano po kya posible dahilan nun ..help plss..

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  13. Im still looking for brandnew speedometer

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  14. We repair defective digital speedometer if u still have the broken one. Brand new means waiting for a long period of time to arrive and very costly. Just try to email me for details thank you.

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  15. san kaya po mkakakuha ng ganyang IC? ganyan din kase problema ng speedometer ng wave s ko.

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  16. Just email me and send that panel to me for repair. If you don't want it to be repaired, then theres no much help i can do for you.

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  17. Good day po sir yung Wave S ko kasi walang ilaw sa Dashboard niya pati sa headlight niya ano po kayang problema nito boss?

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    Replies
    1. good day sir may i ask po kasi ung speedometer ko grounded po siya anu po ung dapat ayusin dyan. sumisiga ang nutral nya at ung neddle nya gumagalaw galaw nga blingk blingk ung light sa nutral nya tapos hindi nag didisplay ung fuel digital nya. tnx po sir sa pag sagot.

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  18. may i asked is it posible to reset the milage reading of waves 125, mine reaches 99,999.99

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  19. may i asked is it posible to reset the milage reading of waves 125, mine reaches 99,999.99

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    Replies
    1. Yes it can be reverted back to zero, just contact me for details.

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    2. I have the same issue with my wave 125. The mileage is 99999.9 . I have downloaded from L46R the bin file but i am stuck there.. any help please?

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  20. Dear Sir, where can i get clear image of wiring diagram Honda WaveS

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  21. Gud eve sir,pwede humingih ng diagram or color coding sa digital speedo meter?may wiring kasi na naputol.hindi ko alam kung saan ikabit

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    Replies
    1. Sorry I don't have any clear copy of Honda Wave S 125 wiring diagram.

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  22. Alin po sa dalawang pink wire ng gauge ung para sa speed sensor chaka ung sa 4th gear

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  23. Good day sir patulong nmn ano yung bibilhin ko magrepair ng lcd screen ng fuel gauge pa help po alam ko na po ng process kaso d ko alam yung materials na bibilhin ko yung puti na plastic salamat sa reply po..

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  24. Good day!..sir pwd ko po ba malaman kung san po shop mo?..or can i add you in fb..need ko po ipa reset ang odometer..999 na po..salamat

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    Replies
    1. follow us on our FB page. https://www.facebook.com/mastercircuitservices/

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  25. Hi,My panel has a problem,This does not indicate the amount of tank,How can I solve it?

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    Replies
    1. Hello Farhank, I guess you have a problem with your gas float sensor which is located inside your gas tank. To confirm..short the two wires of the sensor to see if your panel gas meter will get to full bars. If yes then you know now the problem. Thank you.

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  26. sir pwede pa hingi ng clear copy ng diagram? thank you po.

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  27. sir pano kapag umiinit parin yung tr01. no power din. thanks

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    Replies
    1. If that is still heating up then you have a slight short on that board. check all components..such as those small black diodes.

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  28. sir dead po ung gauge q as in wala lahat...pero nung tinester q. ung positive test probe q nilagay q sa positive input, tpos ung negative test probe sa TR112 gumana lahat ng ilaw pati sa gear umiilaw...anu ba pwd kung gawin sir?

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    Replies
    1. All indicator lights has no direct connection the supply of the MCU that drives the Speed pointer and the LCD display. What you are doing is trying to turn on that TR112 to which it gets the base signal from the MU..if your MCU is dead or no supply, those indicator lights are also dead.

      TR102 is the one in trouble if u have a dead unit..not TR112..FYI

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  29. Thanks sa pag responce sir..ibig sabihin di po sira ang MCU,nasa TR102 ang sira nya...i need to replace it? ganun po ba? may alam po ba kau kng saan aq makakabili ng TR102?...Thanks again

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    Replies
    1. Honestly, It is very difficult to find SMD components in our country. You have to find donor boards so that you can repair it if u really know what you are doing. There are many who knew but it seems you want to DIY it so better find that part of the component.

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  30. An update on this article.

    When after replacing the TR102 and still burning up all over again, it means the board has a shorted path between the 5 volt Supply and ground in the board. You need to remove all IC one by one as you are looking for a possible shorted IC..Good luck everyone.

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  31. Hi po sir,yong speedometer ng wave s 125 ko ay biglang hindi gumana,sabi ng mechanico is parang nasusunog daw,ma ayos paba yon speedometer ko sir? Sayang kasi.salamat sa sagot.

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  32. This comment has been removed by the author.

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  33. Yes, it can be repaired if the technician really know how to repair it. "kaya po nasusunog yung TR102 na yun ay may ibang pyesa pa na bumigay at yung TR102 na yun ay poprotektahan nya pinaka MU kaya yun ang nasusunog"

    Find me on my service page at FB @masterciruitservices

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  34. What is the problem of my odometer there's no activity at all but it still have a power?

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  35. Good Day! is the admin still active? I have a question regarding on my speed meter also, it has all the lights in my panel, my only concern is when i try it to start, the panel works properly and the arrow is active but, when I'm riding it the speedometer arrow is not working when I'm gaining speed, what do you think is the main problem of the speedmeter?

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