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First, outdoor P12 full color module
1. A row of R (G, B) lights are connected: In the module, one TB62726 (R) controls 4 rows and 16 columns of red LED lights. 4 lights are connected in series, 3 of which are brightly lit, and the unlit R (G, G, B) The light can be.
2, R (G, B) string point: control the chip pin short circuit at this point, the output pin short circuit, re-solder the chip pin.
3, a column of R (G, B lights long: when lighting the module, one of the lights in this column is darker than the other three, this light is reversed, removed and reinstalled. If the brightness is the same as the chip output pin Short circuit, each column (4 lamps) corresponds to a serial output port.
4. The number of rows of lights does not light: the corresponding IC4953 is broken or the pins are shorted, the PCB board is open, the IC is replaced, and the circuit is reconnected.
5, color difference: the corresponding R (G, B) lamp external resistance welding error, or total resistance welding error. Replace the new resistor.
6. One column of R (G, B) lights is not bright: it may be that the IC is disconnected from the pin or the pin to the lamp pin. Use a multimeter to test the connection of the pin to the lamp pin. If the lamp is on, it is the pin to the lamp. The pin is broken and connected with a jumper on the front. If it is not bright, it may be that the IC to the pin header is open. You can remove the control board to see if the pin header pin is loose and re-solder.
Second, outdoor P14 full color module
1. R (G, B) light is long: two lights in the module are connected in series and combined into one pixel. When one lamp is damaged, the other lamp is bright, and the damaged R (G, B) lamp is replaced.
2. The R (G, B) lamp is dimly lit: the lamp is broken, and the dark lamp is replaced.
3. The R (G, B) lamp is not lit: it may be an open circuit on the PCB board or a short circuit in the pin header. Use a multimeter to detect the corresponding line, find out and connect with a jumper.
4, R (G, B) light is connected: IC or pin short circuit, find the short circuit and eliminate.
5, local color difference: a small piece of R (G, B) light is not bright, the total resistance welding error. Replace the new resistor.
6, R (G, B) string point: IC pin short circuit, re-solder the pin.
Third, outdoor P16 full color module
1. R (G, B) lamp 瞎 point: It may be that the IC is disconnected from the pin or pin to the lamp pin, and the multimeter is used to test the open circuit. If it is an open circuit between the pin and the lamp pin, it needs to be used. Jumpers to connect.
A type of Auto Lamp that used quartz as glass shell and filled with halogen gas gives a very bright light. Principle is inside the halogen bulb such as injection of iodine or bromine, under high temperature, the sublimation of chemistry with halogen tungsten filament, tungsten will be cooled to solidification on tungsten filament, form balanced circle, avoid premature tungsten filament fracture. So halogen bulbs live longer than incandescent bulbs. The supply voltage of halogen lamp is usually divided into ac 220V and dc 12V and 24V. The halogen lamp is made of tungsten, but it is enclosed in a smaller quartz glass shell. Because the glass is very close to the filament, if it's made by normal glass, it will melt very easily. The gas in the glass is composed of different gases. These gases have a very interesting feature. They are combined with tungsten vapor. If the temperature is not high enough, the halogen gas combines with the tungsten vaporization and redeposition of the filament. This cycle makes the filament can last more time. Halogen bulb is hotter than a normal bulb.
Auto Halogen Lamps
Auto Halogen Lamps,Rainbow Halogen Auto Lamp,Blue Halogen Auto Lamp,Golden Halogen Auto Lamp
Heshan Jianhao Lighting Industrial Co., Ltd. , https://www.sunclubtw.com