e-CPnS

Computer Power Supply Unit (PSU)

2011-10-20T04:02:00.000-07:00

How to test computer power supply unit?
Check connector cable PSU, there are 20pin connectors. See, search, and join green and black cable together, fan PSU will be rotating, so PSU is on or active.

USB EXTENDER (Up To 10m)

2011-10-20T03:43:00.000-07:00

We all know that USB extender in the store have length about 3 meters. I try to connect printer-cpu with this cable. What happen?
The printer cannot detect to computer system. Why? Because there are a lot of current loose (USB extender cable is to long -- maximum length one meters) or bad quality of cable, so the device cannot be recognized.

Extender cable have 4 pin, there are

Red, refer to 5 volt dc
Green, refer to data +
White, refer to data -
Black, refer to ground

Belden cable has 8 piece cables, and they are:

orange,
white-orange,
green,
white-green,
blue,
white-blue,
brown,
white-brown

Now, we can build modification of extender cable. We need male and female connector of USB. Cut the cable, replace with Belden cable.

First we need to configure Belden cable, by joining:

brown and white-brown together, to red cable of USB
green, joining with green cable of USB
white-blue cable to white cable USB
and the rest of cable(blue/white-green/orange/white-orange ), joining to ground (black cable USB)

We have extender USB 10m cable and ready to use.

USB HUB 4-PORT with four divices

2011-10-20T03:28:00.000-07:00

Typically USB hub has 4 port connections, sometime they just one or two connection work very well. For example, I want connect two ports for USB printer, a USB scanner, and USB flash drives together in the same time. The question is, "How do i hook up all the devices?"

If we use all port together, sometime caused our computer hang or slowing down CPU process system. This problem happens because this device (USB hub 4 port) overloads the computer power supply. USB standard is unpowered power supply, so they get their power from the bus, up to 500miliamps at 5 volts. So we need external power supply to handle all devices on USB hub 4 port. In the other side, if we have a lots of self-powered devices like printer, camera or scanner, then our USB Hub does not need to be powered.

This external power supply can be form by IC regulator 7805 that gives regulated voltage at 5 volt.

So we need transformer that have voltage more than 5 volt, 12 volt is more optional. First, we need to disconnect 5 volts cable USB hub from computer power supply, and then connect pin 1 female usb connector to the output of ic 7805. Maybe we need to adding capacitor to the input and output ic 7805, it’s about 220uf/16v (negative pole to the ground).

We have full installation external powered USB hub.

How to reset job printing

2011-10-14T12:26:00.000-07:00

Use stalled printing repair to reset all stuck print job.
Click all print job that stalled and click purge print job.
Refresh it, with click refresh button.

Turn off your printer, and turn on again.

You can print your document.

Printer head cleaning

2011-10-14T12:16:00.000-07:00

How to clean head printer?
Shrink up the ink to the head nozzle until come up to all the hole of nozzle. Shrink for 1 until 3 times. It is time to take a bath your head cartridge with cleaning liquid that you can buy in computer store. Take a rest this head one or two days in liquid water. The ink will flow up to the cleaning liquid, and then put back in commonly water. The dirt at the head cartridge will be flush, and your head nozzle must be clean. Be careful, don't wet the circuit in head cartridge. If you do, your cartridge not compatible anymore. With other word your cartridge is death, go to computer shop to buy new one.

Problem with CD read/write

2011-10-14T11:58:00.000-07:00

wCdrw type LG CD-RW CED 8083B. Is burn error code with "track following error". This code happen if i burn large data (approximally to cd capacity 700MB), in other side if i burn a tiny data, this error code not shown. I use nero burning room 6.6.0.8.
Maybe anyone can tell me to solve the problem??

DEATH hard drive

2011-10-14T11:47:00.000-07:00

Death hard drive. Can we repaired at home??
Caused by several problems :

Hard drive mainboard, include all of connector and cable. Maybe need to re-soldering.
Scratch of disk (broken track) and the picker head.
It easy way to replace mainboard with the work one

Step by step open carefully the with star screw driver. Replaced, install and test your hard drive to your system PC. If you luck you can hear the rotating sound of your hard drive, check there are click noise.

Thing easies to volume control

2011-10-14T11:34:00.000-07:00

It is digital time USING DS1669.
Use this integrated circuit to control your sound volume.
Just a single chip.
And you can push the digital world decreased and increased.

How to setting network printer in xp

2011-10-14T11:25:00.000-07:00

First step to install network printer is open control panel, network and internet connection, network setup wizard (do step by step on this setup). Importance to type one group name to set. Set to all your computer network.
In start menu choose printer and fax, add printer, choose to network printer setting. Select the printer network. Now you can print any were with this network printer.

How to install PC BU

2011-10-14T11:14:00.000-07:00

Maybe it is so easy, if we know the structure of mainboard. Install CDRom to ide-0 connector, it is belong to first boot sequence, and install hard drive to ide-1 for the operation system and data. Take a look for ide-0 connector carefully. It fully hardware setting not a software. Turn on cpu and the first boot is from CDRom.
Now you can install your operating system to your PC.
dont forget to insert the CD intaller!

ip1300 infus sys

2011-10-14T11:05:00.000-07:00

Ip1300 use color cartridge to lock printing process. So we have install this color cartridge to print process. I use black color cartridge to modified infus sys. I used this modification in several years. In this time, i have a problem with this infus sys: my ink cannot fill the cartridge continously. I try to pump ink tank with the shrink but this not solve the problem. I try to pull up the ink tank, it not work too. I got frustrate on this! I check all system of infus maybe there is false connection between tank and cartridge. I suggest don't pull up the ink tank up more than cartridge position. if you do, your printer cannot print any thing....! do ink cartridge cleaning both software or hardware (use cleaning liquid).
If you frustrate to, don't use this printer in one day. Lets this printer take a rest.....
in the morning, i try to print something, but i clean the head first. i do test print and check nozzle check.
Both test print have good result. I don't frustrate anymore. So be patient, u can save your money to service agent...

ip 1300 problem

2011-10-06T12:14:00.000-07:00

Canon ip1300, is the best choice to printing speed and easy to maintained.
Independece cartridge black and color.
Modificated cartridge with infus system, we can do it by our self. It so easy.
But i have problem with loading the paper. Sometime load 2-5 papers.

disfunction cx2800

2011-10-06T11:59:00.000-07:00

Print and scanning cannot work, cannot load paper.
Check all connector cable.
Check cartridge compatible.
Mechanism to be replaced.

Blink on epson tx101

2011-10-01T23:48:00.000-07:00

Why?

My problem is connector cable scanner, must be replaced.
my printer not blink anymore...