In my coca cola truck radio car, the wires transmitting to the lights are broken. They are also messy due to attempts at fixing. There is power being transmitted through all wires, and the transistor works fine. Does anyone know where the wires should go? Does anyone have the blue print of the wire-set up of coca cola truck radio cars?
Thank you
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"Since the wiring is messy, the best way to fix this is to look for clues directly on the Circuit Board (PCB). Here is a step-by-step approach:
1. Look for PCB Markings:
Most circuit boards have silk-screened labels to help technicians. Look closely at the areas where the wires were originally soldered. You will often find markings like 'LED+' and 'LED-', or simply '+' and '-'. If you see those, you have found your connection points.
2. Identify the LED Polarity:
LEDs are directional (diodes). If you connect them backward, they won't light up.
3. Test the Voltage:
Depending on the type of LED used in toys like this, the voltage supplied at those points is typically between 1.5V and 3V.
4. Re-soldering:
Once you have confirmed the (+) and (-) points, clean the old solder from the board with some solder wick, and re-attach the wires neatly to avoid short circuits."
" Wiring Logic:
In most RC cars, LEDs are almost always wired in Parallel, not Series. This is because the battery voltage (usually 3.7V to 6V) is too low to power multiple LEDs in series.
- Why this matters: When you are re-wiring, make sure each LED's Positive goes to the common Positive rail and each Negative to the common Ground. Do not chain them one after another (Series), as they will either be very dim or won't light up at all due to the voltage drop."
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Pictures could go miles with this question.
if they are LEDs the side of a bulb style LED will have a notch indicating the negative side. please provide photos for better help.
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