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1 Answer

Can you use one 9 volt battery to test 3 lcd/led backlights at a time,instead of two double A batteries?


Two AA batteries are 3 volts (1.5v per battery). A 9 v battery is 9 volts. You are going to burn out your LED lights.

Semper Fi,
Z

Apr 27, 2017 | Computers & Internet

2 Answers

How do I properly determine the power supply of a parallel circuit of LED lights? I have 30 LEDS to wire into a large model. I know the individual LEDS each run on a 3 Volt CR2016 watch battery. How


With the explanation of nik you can solve the problem. All you need is a multimeter to measure the consumption of one LED an then you can determine the value of resistors and power of battery. Here is an electric circuit for you to figure the hole connection needed. It is advisable to divide the circuit in blocks in order lo achieve better performance. If one led became short circuit, only the segment where is located will be off. The requirements of power for resistors will be easier too. You can even divide in bore blocks, depending on the power of LEDs.
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Sep 18, 2014 | Cars & Trucks

1 Answer

2003 Silverado one ton shows -11.7 volts at brake lamp connections. Truck light work ok but the trailer brke light are leds and they don't handle the -11.7 volts.


Hello! Place a 1/4 watt, 50 ohm resistor in series with the +12 battery feed to the trailer LED brake lights...Each LED drops 3.6 Volts...You can run a maximum of 3 LED's per resistor...If you have more than 3 LED's run them in parallel with each set of 3...Each run of 3 requires it's own 50 ohm resistor...

Guru.....saailer

Jun 18, 2010 | 2003 Chevrolet Silverado 1500

1 Answer

When I plug in my jet 3 ultra the ammeter reads 0. If I turn on the vsi controller the top led display( 3 red, 4 yellow, 3 green) are all lit. I see where that means high battery voltage. The lower led...


Its showing you the voltage out put for the charger if all power lights are lit and the chager is pluged in if batteries show only 2vlts then they are no good and the will not charge up thats why amp meter is on 0

Mar 03, 2010 | Jet 3 Ultra Power Chair

1 Answer

Shop rider sovereign voltage indication. Brand new fully charged


hi Richard,

Does the scooter actually lose power after the 3 leds show ?

If it is losing power then a suggest to try some other batteries to confirm dodgy batteries, check the terminal connections etc.

If it does not lose power then the volt meter is at fault, if you can check the voltage before riding then after it shows only 3 leds , if there is a big drop, check the charger first to make sure the batteries are getting fully charged.

Regards
GeWiz.,

Dec 21, 2009 | Electric Mobility Shoprider Electric Power...

1 Answer

We had thunder storms my tv 65613 has a green blinking light wont star


Good Day,mikeybecerra; TV wont come on mb try these 6 items, please pay attention to the blinking light (it's a code) : 1. Check for no 8.4 volts DC at pin 3 of PC9A10 on the Power PCB, if low or missing replace PC9A10 part # 268P058020. 2. LED does not blink at plug in. Check for 3.3-volts DC at connector RF pin 3 (system reset) if low or missing suspect the reset switch S7L20 part # 432P109010 on the Control PCB. 3. LED does not stop blinking after plug in. Verify the standby supplies, 12-volts at connector KA pin 17, 6-volts at KA pin 18 and the 28-volts at KA pin 19, if the supplies are present suspect the DM PCB part # 934C067001 4. LED does not stop blinking after plug in. Check C9B01, C9B02, C9B10, and C9B11 (1000 UFD 16) on the DM PCB, if they are bad replace them with part # 181P734030 (680 UFD 16 V). LED stops blinking after 70 seconds of plug in but will not power on. 5. LED stops blinking after 70 seconds of plug in but will not power on. Check for 3.2 volts DC at connector RF pin 4 and 5 on the Signal PCB if low suspect problems with the switches/buttons on the Control PCB part # 935D736001 6. LED stops blinking after 70 seconds of plug in but will not power on. Keyboard is not locked and key inputs at connector RF pin 4 and 5 check good suspect the E2P PCB part # 934C061001. Good Luck, big IRISH.

Jun 30, 2008 | Mitsubishi WS-65613 65" Rear Projection...

2 Answers

73" rear projection Mitsubishi TV


1. Check for no 8.4 volts DC at pin 3 of PC9A10 on the Power PCB, if low or missing replace PC9A10 part # 268P058020. 2. LED does not blink at plug in. Check for 3.3-volts DC at connector RF pin 3 (system reset) if low or missing suspect the reset switch S7L20 part # 432P109010 on the Control PCB. 3. LED does not stop blinking after plug in. Verify the standby supplies, 12-volts at connector KA pin 17, 6-volts at KA pin 18 and the 28-volts at KA pin 19, if the supplies are present suspect the DM PCB part # 934C067002 4. LED does not stop blinking after plug in. Check C9B01, C9B02, C9B10, and C9B11 (1000 UFD 16) on the DM PCB, if they are bad replace them with part # 181P734030 (680 UFD 16 V). 5. LED stops blinking after 70 seconds of plug in but will not power on. This model is equipped with a keyboard lock feature; this can be mistaken as a no power condition. To unlock the keyboard press and hold the "menu" button on the front panel for 10 seconds 6. LED stops blinking after 70 seconds of plug in but will not power on. Check for 3.2 volts DC at connector RF pin 4 and 5 on the Signal PCB if low suspect problems with the switches/buttons on the Control PCB part # 935D736001 7. LED stops blinking after 70 seconds of plug in but will not power on. Keyboard is not locked and key inputs at connector RF pin 4 and 5 check good suspect the E2P PCB part # 934C061001

Sep 05, 2007 | Mitsubishi WS-73713 73" Rear Projection...

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