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Basic CRT TV Parts And Sections in the Board

 
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Basic CRT TV Parts And Sections in the BoardIn this post, I will show you the Basic Parts And Sections in the Board of a CRT Television Set. You will learn the functions of each sections in a television set. Here are the List of the Parts and Sections of a CRT Television set : 1] Speaker 2] Yoke 3] Video Amplifier 4] CRT Socket 5] High Voltage Section 6] Bridge Diode 7] Regulator 8] Audio Amp [green square] Audio Section 9] Tuner 10] Flyback 11] Chopper 12] EEPROM [ Memory IC] 13]... [ Continue reading... ]

Jun
17

How to reset bios password or supervisor password on Lenovo Laptop

 
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How to reset bios password or supervisor password on Lenovo Laptop This method should work on any laptop make. I do not take any responsibility if you damage your board. This video is only for reference on how to clear/bypass security settings. For those who looking for EEPROM location for Lenovo computer, copy and paste this web page: ja.axxs.net/eeprom_location.htm Here are the instruction on how to do it but remember do it at your own risks. 1. Power on laptop. 2. When display comes on,... [ Continue reading... ]

Jun
16

How To Access Lenovo Ideapads Laptop BIOS or NOVO Button

 
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How To Access Lenovo Ideapads Laptop BIOS or NOVO Button Ronelex Electronics Repair/ Laptop BIOS or NOVO Button Problem I got trouble in formatting and setting time of the Lenovo Ideapads unit that I repair. I can't enter bios by just pressing F2 and I can't find the NOVO Button until I find this guide on Youtube.Com which helps me to solve my problem :). Just watch the video and learn how to access the BIOS of Lenovo Ideapad Laptop Models.   For more Electronics Repair/ Troubleshooting Guide,... [ Continue reading... ]

Oct
18

Understanding on How Switch Mode Power Supply Works

 
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Understanding on How Switch Mode Power Supply Works Ronelex Electronics/Switch Mode Power Supply Some of us like technician want to learn more about the Switch Mode Power Supply commonly called SMPS. This is a special type of power that uses a chopper transformer instead of an ordinary metal core transformer. We have to learn how this type of power supply works for us to  have knowledge on how to repair this switch mode power supply  if we will encounters problem related to power... [ Continue reading... ]

Nov
12

Solution For All China Board TV Can’t Receive Any Channel Signal

 
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Solution For All China Board TV Can’t Receive Any Channel Signal Ronelex Electronics Repair/China Board TV Signal Problem 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... [ Continue reading... ]

Aug
20

Repairing A DVD Player (No Display, Lights Only, No Buttons Functions)

 
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Repairing A DVD Player (No Display, Lights Only, No Buttons Functions)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... ]

Jun
17

Repairing A DEVANT LCD TV Auto Shut Off Problem

 
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Repairing A DEVANT LCD TV Auto Shut Off Problem   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... ]

Sep
29

Repairing A34JXV70X NEC TV With Picture Problem

 
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Repairing A34JXV70X NEC TV With Picture ProblemI got this post from a Gsmsandwich forum posted by jesse_25 so all credits goes to him I'm just sharing it here in the site for reference if ever we encounter this kind of problem. History of the unit : The owner of the tried to clean his unit but after the cleaning, when he turned on the unit, the problem arouse.         So the owner brought the unit to jesse_25 for repair and what he saw when he... [ Continue reading... ]

Sep
25

Huawei E5220-2 Corrupted Firmware Solution (Blinking) Globe Pocket Wifi

 
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Huawei E5220-2 Corrupted Firmware Solution (Blinking) Globe Pocket WifiI found this tutorial on Symbianize.com forum I am a member looking for the solution for the Pocket WiFi Blinking problem and found out it is caused by a corrupted firmware. This is the second time I have encounter this problem on my device. The first time I encounter this problem is solved by bringing the unit to the globe and have them repair it.         In this post I will teach you the solution on... [ Continue reading... ]

Sep
23
 
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