The power bottom don't work to on.have the 5volts in 0 volts oupt.I teen this problem is the key board or board control be don't see that part online.

Chances of it being the tcon are slim if you don't have sound, to find out what one it is defective remove the back and look on the power supply board pins for one that says PSON (Samsung is usually good at marking the pin voltages) measure that with the set off and then turn it on and see if that voltage changes, for example if its at 3 with it off and goes to 5volts with it on the main is working...or of its at 5 with it off and goes to a couple volts with it on its working, you need to see a change in that voltage...If that voltage is at 0 the PS is bad, also if that voltage changes the power board is bad.

Security light lit on the dash ? You say new coil pack , but is there spark ? Are the injectors turning on ? (squirting fuel ) Is there 5volt reference voltage at the sensors that are suppose to have it ? A shorted sensor can bring down the reference circuit in the PCM causing a crank - no start .
The powertrain control module (PCM) can supply 5 volts or 12 volts to the various sensors or switches. This is done through pull-up resistors to the regulated power supplies within the control module. In some cases, even an ordinary shop voltmeter will not give an accurate reading because the resistance is too low. Therefore, a DMM with at least 10 megaohms input impedance is required in order to ensure accurate voltage readings.
The PCM controls the output circuits by controlling the ground or the power feed circuit through the transistors or a device called an output driver module.
The engine coolant temp. sensor , fuel tank pressure sensor , MAP sensor .EGR valve , A/C refrigerant pressure sensor . The TPS sensors an the APP - accelerator pedal position sensors etc.. Any one of these sensors being shorted internally will bring the 5volt ref. circuit down , shutting down the PCM . Find one of these sensors an test for 5volts on the ref. circuit . If less then 5volts disconnect each sensor till you see 5volts on your volt meter .Then replace that sensor.

Amber light on means standby voltage is high. IF amber light does not go white when power button is pushed the its one of two things.
A. No power on command from main board. Usually labeled PS-On. Should go high from 3.3v or maybe 5volts. If not present Main is defective.

B. If the ps-on line is going high then your problem is a defective power supply.

IAT (intake air temperature) sensor out of range.
It means that the ECU is reading low resistance. It could mean that you have a bad IAT Sensor, a bad ECU (Probably not), or an open (short) in the positive or ground.

Get a voltmeter. Unplug the IAT from the connector and hook the voltmeter to the positive and negative of the IAT sensor. Turn the key to the ON position (DO NOT turn the engine on). And measure voltage. It should be close to 5volts.

If you get close to 5 volts - Sensor is bad.
If you get 0 volts - Short in positive or ground wire.
If you get over 5 volts - Bad resistor in ECU

Hi Billy,

5 blinks is an error code for 5Volts malfunction either on the P board(power supply) or the A board (main board).
1 blink is an error code for A board (no communication between the system CPU and panel CPU).
Since you've got 2 error code which are both related to A board, I've suspected that the A board is already faulty but you have to confirm it to isolate the P board from fault.

You have to check the 5 volts output of the power supply using the multimeter set in DC voltage measurement. Measure the output of the power supply board through connector P7. If you are getting 5volts on that connector you have to replaced the A board to resolve the issue. If there's no 5 volts output then the P board is faulty.

Faulty electrolytic capacitor can drop the output voltage. Let say you are only get 3 volts or less on the 5volts line, then suspect faulty filter electrolytic capacitor. Most of the time it has a physical indication of fault like bulged/dome at the top and can be easily identify through visual inspection like in the sample picture below.

<<< with dome at the top


If the 5volts line dropped its voltage, you have to disconnect the load and then re-measure it (do it very quick, don't let it turn on for a long time without the load). If the 5 volts line normalize after disconnecting the load (A board) then the fault is on the A board and not on the P board. If the 5 volts line still not intact after disconnecting the load, then the fault is on the P board (5volts line).

I've provided a link below for the suspected boards.

A board (Main Board)
P board (Power supply board)
Note : before ordering online, double check the part no. of your board that is printed on the white sticker on the board itself to ensure you will get the exact replacement. There's some instances that the manufacturer used different version of the board even on the same model no.

Please let me know if you need further assistance.

Ratings and feedback are highly appreciated.

Hope I helped you.
Have a nice day!
Jdvillanueva

Service manual says that POW5 error is because bad 5volts supply but could be something else. Check all supply voltages.

the power supply of your TV must be check.the power output of the power supply suppose to be 12 volts for audio,24 volts for the backlight lamp and 5volts for the main CPU. use a multimeter to measure the voltage In the case of your TV it seems only 5 volts is present that is why you have a power indicator lit....open the back cover of your TV and measure the power supply.power supply board is where the power cord is connected...

check power outlet from wall, must have 220 output or no heat.

P0123 (M) Throttle Position Sensor Voltage High Throttle position sensor input above the maximum acceptable voltage.

Do not just go around replacing things. They are at high voltage because they are trying to over correct for something else. You need to find the underlying cause 1st. Unfortunately, not enough info here and without a scan tool and software, you'd just be shooting in the dark and probably over spending the solution. If you don't have the tools or experience, then take it to someone who does.
Sorry to sound harsh, but this just might save you $$ in the end.

Check the voltages on your tps. Not sure for your specific vehicle but i think it's around 1 volt or so at the signal at idle.
the following was for a dodge but not sure if it is the exact same for your rig so proceed with caution.

Should be three wires. black=ground, orange with a stripe=signal and purple with a stripe is the 5v power. disconnect it use a voltmeter to test the 5v power. Turn the key on for power. If you have power your good there. Plug the connedctor back in. Use the volt meter to adjust the sensor. Loosen the housing. Put hte probes through the back of the connector black-ground and red-to the signal wire. Turn key on but don't start. shouold be around 1-1.2 volts. this is the factory setting. If not then move the tps till you get that then tighten the housing. then keep the probes on the connector and work the throttle from idle to wide open throttle. Should move smoothly up to 5volts but no more. It may not reach 5volts but atleast 3.5 volts.

This could be a power supply fault,check the volts on the red,yellow and earth lead(black)THE RED LEAD =5VOLTS
YELLOW LEAD=12VOLTS.WHITE=-5VOLTS
BLUE=-12VOLTS,PURPLE,=+3.3VOLTS
BROWN=+5VOLTS VSB
BLACK=GROUND.
Diconnect the pc mains plug from the computer.
Disconnect the power supply leads from the motherboard,and switch on and check the volts on all leads of all those I mentioned.If these are present when they are not connected to the main board,then the problem is with the motherborad,most likely the bios chip is faulty.This chip kicks starts the PC into coming on.Failing this send the PC back to where you bought it and let them fix it.
IT COULD ALSO BE THE MAIN ON OFF SWITCH AND THE CABLE ITSELF FAILING.CHECK THIS WITH AN OHM METER ON X1 OF THE RESISTANCE SCALE.DISCONNECT THE MAINS PLUG FIRST.