Very well done video. The 0603 LEDs were extremely tiny--I had to use micro tip tweezers and some helping hands with a light. It looks amazing, though. A couple things that helped me: I used two long breadboard jumper wires (24AWG) to pull the needles out (took 5 seconds vs the 5 mins of trying to pull with my fingers); I used a 3 AA battery box to test the polarity of the SMD LEDs (mount with positive facing the top of the needle); put tape between the clear plastic and the circuit board to prevent melting the clear plastic; and you'll need a long and slim soldering tip to reach the LED closest to the base of the needle. Also, when you put the needle back on, the needle should be one tick below zero to hit zero when powered on. Please note, I initially had a hard time hitting zero, but I realized I could start a little higher and gently twist counterclockwise to get to the right spot. Thanks for hitting all of the critical information.

You are the best !! I wish someone here in dubai can do it for me .. i have isf and one year it has been out my speedo..i will show any electrical shop your video maybe if its easy for him He can help me out

@sultanali9400

5 жыл бұрын

tell me if you find anyone

@youniskhanyousafzai4408

Жыл бұрын

Same here

You are extremely clever, God bless you, you really helped me out here

@Hacksome

8 жыл бұрын

thanks

Well I tried it.... and failed. Does anyone have any idea where I can get a needle from?

Thanks for video. I changed my LEDs successfully , but when I reinstalled my tach needle it now reads 750 rpm too low. Have you (or anyone reading this) worked out a way to correct this issue if it occurs?

@Hacksome

7 жыл бұрын

Buddy Johns I would recommend taking the needle out again and reinserting it in 750 rpm in opposite direction. I didn't face this problem but some guys on clublexus forum did, so it is not completely unheard off.

@oooxXxBudxXxooo

7 жыл бұрын

Thanks Taimur. I have a bit of OCD and felt like I had to fix it NOW! Here's what I did and what I think will work for others: 1. My RPM needle was reading too low. This means that (in my case) the needle mount needed to be moved clockwise on the motor that drives the needle. 2. The motor does not rotate 360 degrees, so it has some sort of mechanical stop. Additionally, there is a coupler on the back end of the needle receptacle that mates the needle to the motor that acts as a friction clutch. This clutch will allow the needle mount to be rotated about the axis of the motor once the motor has reached its mechanical stop. 3. So, to set the RPM (or speedometer), the needle mount must be adjusted. To do so, simply remove the needle and rotate the needle mount (in my case clockwise, if the RPM was high, then I'd rotate it counter-clockwise) with your fingers until it reaches the mechanical stop and then continue to rotate it for another "750 RPM." You should feel some slight resistance as the clutch slips. It doesn't take much force (I did it with just the tip of my finger). 4. Obviously, it's hard to tell if you've moved it the correct amount, so to test it, move the needle mount counterclockwise by about 90 degrees (or 90 degrees clockwise if you are correcting a "too-high" reading) and re-insert the needle and gently rotate the needle back to the 0 RPM (or 0 MPH) position. If you moved it the correct amount, the motor's mechanical stop will be aligned with 0. 5. Finally, plug the cluster back in and start the car. The initial needle sweep should begin at exactly 0 and rotate fully around clockwise and then settle back on the correct reading. If the sweep does not start at 0, then repeat the process, moving the needle in the appropriate direction to correct the error. In "step 4" I mention rotating the needle mount 90 degrees before reinserting the needle. This is to prevent you from hitting the mechanical stops on the motor when reinstalling, which would introduce error. I think this may be the reason that some folks have experienced this issue to begin with. If you remove OR replace the needle when the indicator is near one of the stops it's likely that you'll cause the clutch to slip slightly, introducing error. I plan to fine tune my readings by using Torque (the OBD-II App for Android). Hope this helps someone.

@Hacksome

7 жыл бұрын

Buddy Johns thanks for sharing!

Taimur, by using the 0603 LED's as replacement, do you still retain the capability of dimming the needles with the dimmer switch?

@Hacksome

7 жыл бұрын

Yes the dimming still works and 0603 are easier to solder than PLCC-2 ones used in the pin

0603 single Led what is the Volt I think different Volt available for 0603 which one is right for cluster needle, Thanks.

And are they like side leds? Because I got some from amazon smd led 0603 but they appear to be so small And I don’t have a skilled soldier by my place What can I do in this situation ?

whats the purpose of showing the bags at ~10min?

My needle doesn’t light up anymore. But since this is a common problem for the IS I don’t want to get a needle from a junkyard and find out it doesn’t work either.

@Hacksome

4 жыл бұрын

Try fixing it. Take car to electronics repair shop and show them the video.

0603 and PLCC-2 both are same volt, how many led need for long needle and cool white led same as original or different?

@Hacksome

4 жыл бұрын

One led is enough and cool white is close match

where do you buy these LEDs? is there a standard size?

@Hacksome

9 жыл бұрын

The LEDs were from Farnell. It's called Newark in USA. I used 0603 size, high brightness 140mcd blue LEDs

I can't seem to pry them off. They almost feel glued on.

@Hacksome

4 жыл бұрын

First time you've got to go hard on them second time they pop off easily

I wonder if there is a part number for the needle itself. I'd almost rather just buy a replacement needle assembly.

@Hacksome

8 жыл бұрын

+memkills With most things Lexus, you'd probably be looking at replace the whole Instrument Cluster. AFAIK the needle itself is not deemed replaceable by Lexus

@memkills

8 жыл бұрын

+Taimur Khan True, I haven't been able to find one via google yet. Guess I'll be soldering ಠ╭╮ಠ

@Hacksome

8 жыл бұрын

+memkills Good Luck!

@memkills

8 жыл бұрын

+Taimur Khan How hard was it to put the needle back in? You mentioned that it was really hard to pull it out.

@Hacksome

8 жыл бұрын

+memkills putting it back was easy. just have to make sure it's put back in the same position that you took it out from so it settles back on 0.

Do you provide a service maybe ?

@Hacksome

4 жыл бұрын

Sorry this was many years ago don't even have the car anymore

What about the LED specifications of the pointer? I have encountered such a situation! Want to fix ~

Or you can just buy the needle and replace it.

@Hacksome

2 жыл бұрын

You are right. When I made that video the needles were hard to come by and Lexus would exchange the whole panel instead of a needle. Now a days a needle exchange should be much better

Are you sure they are 0603??

@Hacksome

4 жыл бұрын

The original were bigger size so difficult to hand solder. I thus fitted 0603 which were easier. You can try 0806 if you think 0603 is too small

@Hacksome

4 жыл бұрын

The original one I think are called PLCC-2

@WeAreFriends4wave

4 жыл бұрын

I got the 0603 and they smaller then I expected 😅😅 I took it to the shop and he said maybe next time u can get bigger , Idk how to soldier , but he did it and now I have red needles 😍, so thank u for the tutorial

@WeAreFriends4wave

4 жыл бұрын

Do u think the head unit have the same size as well of leds? Can I change them with the same leds 0603?

@Hacksome

4 жыл бұрын

@@WeAreFriends4wave I am not sure about that and unfortunately don't have the car anymore

worst audio ever