tcu in a honda accord and it has 2 resistors burnt black, how do i find out what kind they are ?

I am requesting support from someone who knows electronic power circuits. I have an AC adapter, input 120VAC, two outputs: 32VDC & 16VDC. I connect a voltmeter to either output and when I plug it in, output is instantly correct but then slowly reduces to zero asymptotically. It will not deliver any output again until is it unplugged and plugged it again. It then jumps to the correct output, then repeats the slow reduction to zero. I know enough to suspect that the slow fade-out is a DC capacitor discharging but beyond that I don’t know what components to check or how (other than one-way continuity of diodes, resistance of resistors, etc. I have completely eliminated the possibility that it’s a faulty connection or power cord.

I’m learning programming for the first time (starting with C for beginner) but I first I want to understand exactly what happens when I type the key, let’s say "b" on my keyboard and seeing letter "b" appear on a notepad for instance.

My guess is this and I’m not sure to what extent it is correct:

First, a computer is, physically speaking, nothing but electricity and circuitry (matter; electronic components such as resistors, capacitors etc and electrical power which comes from the battery/wall and finally the way all these are connected to one another)

1. The keyboard, being an electronic device, needs electricity in order to work so it is powered by the computer through the USB port.

2. By pressing any key ("be" in our case), I’m actually closing a circuit which makes some current/voltage flow (high for 1 and low for 0)

3. Some programs (Operating system which then communicates to notepad God knows how) convert this series of high’s and low’s or 0’s and 1’s into what I see on my screen as letter "b" on the notepad.

Am I close to the reality of computing?

I mean how does the computer know that I have actually pressed the key "b" on the keyboard and not "a", does every key send some sort of special current or something? This part I need clarifying the most!

Does this have anything to do with "Hex"?

Thank you.
where does the processor come into play in all of this? my processor is 2 GHz, what does this mean in terms of typing and seeing something on the screen?

The resistors are all labeled with R# and it seems the capacitors are named accordingly with C#. What could a part with the labeling D2 be? it looks like a black cylinder with 2 small metal pieces holding it slightly above the board.
any help is greatly appreciated .

oh ya, and its a LCD power supply, looked for the schematic but couldn’t find it.

Radio Shack?
Circuit board types, is there only one kind?
What Do I need to learn about Transitors Resistors, compasitors ect ect…?
What I need to know if I want to be serious about engineering electronics, or simply to modify an electronic component?

Thanks.

Radio Shack?
Circuit board types, is there only one kind?
What Do I need to learn about Transitors Resistors, compasitors ect ect…?
What I need to know if I want to be serious about engineering electronics, or simply to modify an electronic component?

Thanks.

i'm solving electronic homework ,and i got the values R1=66.67
R2=12.4k
(and Rs=10 ,RL=1k are given),there is part in the question which want me to chose the closet values for the resistor before i design the circuit in pspice program.
can u tell me how i can chose from the given appendix below

Preferred resistance values (approximately 10% increase)

I1.01.52.23.34.76.8
II1.11.62.43.65.17.5
III1.21.82.73.95.68.2
IV1.32.03.04.36.29.1

I to IV for (+-)5% tolerance resistors
I and III for (+-)10% tolerance resistors
I for (+-)20% tolerance resistors

Values multiplied by 1, 10, 100, 1k, 10k, 100k, 1M, 10M
Multiplier 10 to 100k can cover all the preferred values
E.g. 11, 110, 1.1k, 11k, 110k

Resistor types: Carbon film, metal film, wirewound
i think this will be clear

I(1.0)(1.5)(2.2)(3.3)(4.7)6.8)
II(1.1)(1.6)(2.4)(3.6)(5.1)(7.5)
III(1.2)(1.8)(2.7(3.9)(5.6)(8.2)
IV(1.3)(2.0)(3.0)(4.3)(6.2)(9.1)

I want to make an electrical circuit with 11 standard 5mm leds connected with one normal push to make switch. Could someone tell me what type of resistors, wire, etc. to use to make it work, and safe.

Also i want to connect it to a mains transformer so how many volts will i need to get the right amount of power and not blowing all the leds. 3V, 9V etc?

Please help,

Kind regards!

Is it dangerous to handle such things (such as circuit boards, resistors, wiring, etc) with ones bare hands?

Radio Shack?
Circuit board types, is there only one kind?
What Do I need to learn about Transitors Resistors, compasitors ect ect…?
What I need to know if I want to be serious about engineering electronics, or simply to modify an electronic component?

Thanks.