Here are the contents of this tutorial:
Analog Electronics which includes about The Components of Electricity, Resistor, Capacitor, About Ohm’s Law, Inductor, Diode, Transistor, Relays and OP-Amps.
Digital Electronics which includes The Introduction to Decimal, Binary and Hexadecimal and The Introduction to Logic Gates
[slideshare... [ Continue reading... ]
This is for all China Board TV that can't receive any channel signal but the tuner is good and you may not need to replace or reprogram your memory IC. All we need to do is to copy the settings on it. If you don't have the original remote controller of the unit, you can use the Universal Remote Controller
Step 1 :
set your remote to code 006 and press the 2 three times and the adjust menu will pop up.
Step 2 :
If... [ Continue reading... ]
In this article, we will be focused on getting the bias current of an output transistor of an amplifier circuit. According to wikipedia:
Biasing in electronics is the method of establishing predetermined voltages or currents at various points of an electronic circuit to set an appropriate operating point. The operating point of a device, also known as bias point, quiescent point, or Q-point, is the steady-state operating condition of an active... [ Continue reading... ]
For those who are looking for a copy of the schematic diagram on this type of Analog Multitester and other brand using the same circuit diagram, you can download the schematic diagram in here. credits to Deantyne
[caption id="attachment_135" align="aligncenter" width="500"] credits also to: Deantyne[/caption]
For more information about this topic, you can visit Elab Forum for the discussion about this kind of Analog Multitester and... [ Continue reading... ]
We will be concentrating on LCD Inverter and CCFL bulb.
Laptop with black screen problem is commonly caused by:
1. a defective backlight, which is the cold cathode fluorescent lamp(CCFL) bulb
2. defective laptop's inverter board
3. no video output going to the LCD Screen
It is not an easy job repairing laptops specially if we don't have parts that we can use to replace to the parts we are suspecting to be the culprit. So now, we... [ Continue reading... ]
Repairing A DVD Player With Corrupted Firmware (No Display Lights Only, No Buttons Functions)
Let me share to you this tutorial about repairing DVD player caused by corrupted firmware. Thanks to Ikasamoko of ELAB forum for sharing his knowledge on this topic.
Problem:
The DVD is on Half-Dead state, which means the power supply is OK all over the entire circuits, but no Display, Lights Only and No Response on Buttons or Remote... [ Continue reading... ]
Building own Pisonet with pictures to be used as guide and inspiration in building your very own Pisonet Unit.
Bill Of Materials Used in the Assembly :
1 set pc - 12000
1 pc flywood - 870
timer - 250
coinslot - 180
paint and wirings - 500
speakers - 450
locks (mga kandado)- 300
glass - 120
And for the Prices and Specs for the Computer :
Hdd Internal: wd 500GB (SATA 6Gb/s) PHP 2750.00
Memory: corsair vengeance... [ Continue reading... ]
Problem :
Trinium LCD TV 19" Dead Set Problem
Power Supply is working fine.
The Culprit :
Defective 5v LDO Voltage regulator and I replaced it with 7805 V-Regulator.
Leak and open Ceramic cap... [ Continue reading... ]
DEVANT LCD TV Model: 26DL29
Trouble :
If you turned on the main switch, the red pilot light will light up and then the blue light but then shut off. All the power supply in the output of the chopper transformer are all gone after it shut off. THis kind of trouble is commonly caused by the electrolytic capacitors in the power section.
Culprit:
A leaky Electrolytic Capacitor with a part number of C849 with a value... [ Continue reading... ]
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