-Uses only a chip(without the arduino board)

I wanted to get my costs down and made a standalone board using only the chip.
http://electricprojects.wordpress.com/2012/05/29/standalone-arduino/
http://www.arduino.cc/en/Main/Standalone

6 PWM pins needed

  Yes

-The LEDs and resistors are soldered onto pre-printed circuit chipboards

If you mean a manufactured PCB, then yes this is possible, but you have to design it and they can be pricey.  I like using Adafruit proto boards as they are nicer than regular perf boards.  https://www.adafruit.com/products/571

Epic fail or not, it's the sign of the times and such 'pushed commercials' are going to just get more and more prevalent in our daily lives.

Totally agree with this.

Flew on Delta airlines recently.
You have a touchsreen on the headrest in front of you to watch movies and tv shows and play some games.  Not a bad idea, but it also controls your overhead light.
I wanted the light on to read a book.   To turn the light on I had to watch a 30 second ad before I was able to get to the screen where you control the light.

Let me repeat.  I had to watch a commercial in order to turn the light on.
Epic fail.

There are basically two ways to make sound with an Arduino.
One is to use tones. 
http://arduino.cc/en/Tutorial/Tone

The other way is to use a shield such as the Wave shield or an MP3 shield.
These shields use an SD card to store files, so you can add as many sound files as you like.
Last year I converted an old radio into an MP3 player. http://arduino.cc/en/Tutorial/Tone

Terry's idea would also work well, although I have never tried it.
If I were making it, I would add a button to reset the counter every day and an LCD screen to display the value.
http://adafruit.com/products/181

Another option might be a data logger, where all your data is stored on an SD card.
You could just make it log the data at the end of every day and pull out the SD card and put it into your computer when you wanted to record the data.
http://adafruit.com/products/243

How fast do the logs move on the conveyor?
Are the logs all the same size?
Is there any space between the logs?
If there is a space, you might be able to a range finder like this one to measure the distance from a set point.  Anything less than the set distance would mean a log.

http://www.pololu.com/catalog/product/1137

I would get it working in the serial monitor first then get it writing to your particular screen.
Something like this (not at all tested).

Code:

int x=300;
int Button=5;

void Setup()
 {
Serial.print(x);
digitalWrite(Button, HIGH);
}
void Loop()
{
 if(digitalRead(Button)==LOW)
{
Countdown();
}

}

void Countdown()
{

for (int i=300; i <= 0; i--){
      Serial.print(i)
       }
}

Check out Tweet A Watt by the folks at Adafruit.
http://www.ladyada.net/make/tweetawatt/

Could be a power issue.
What is the stepper motor rated for and how many amps does your power supply provide?

Check out a project I did last year using the same shield.  Not exactly the same, but might give you some ideas.http://electricprojects.wordpress.com/2011/05/08/sheep-doorbell/

Have you tried the sample sketch from Sparkfun?
https://www.sparkfun.com/products/9607

Also check out this project called Take A Seat.  Basically a robotic chair follows you around the library until you need it.  http://www.robotliving.com/robot-news/robotic-chair/

There are basically two ways to make sound with an Arduino.
You can use Tones or a shield that plays a sound file.

http://www.arduino.cc/en/Tutorial/PlayMelody

http://adafruit.com/products/94

Ok, tried putting it back on the Diecimilia and it works fine.
I'm using different pins because it won't work at all if I wire the MEGA at like the Diecimillia.

I was off by one wire.

This wiring now works on the MEGA 2560.

TLC59040              MEGA
26 SIN ------------ Pin 51
25 SCLK 25 -------- Pin 52
24 XLAT ----------- Pin 11
23 BLANK ---------- Pin 12
18 GSCLK ---------- Pin 9

Thanks.

Hi,
Trying to get a TLC4950 and 4 RGB LEDs working with a Mega 2560.
https://www.sparkfun.com/products/10136
Had it working on  Diecimilia previously based on playground article & wiring diagram.
I am changing the wiring to this for the MEGA.
TLC59040              MEGA
26 SIN ------------ Pin 51
25 SCLK 25 -------- Pin 52
24 XLAT ----------- Pin 11
23 BLANK ---------- Pin 12
18 GSCLK ---------- Pin 9

Based on this:  http://code.google.com/p/tlc5940arduino/wiki/ArduinoMegaHardwareSetup
Is this the correct setup for the MEGA 2560?
Also, What is a quick way to check if the 5950 chip is fried or I damaged it?

Thanks.