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Minggu, 28 November 2010

Troubleshoot dead Laptop

Laptop is dead. How to troubleshoot the problem.

In this post I’ll explain how to troubleshoot a dead laptop and find the problem. The following troubleshooting tips are not model and brand specific, they should work for most laptops.

Let’s take a look at two different scenarios.
Example 1. The laptop is absolutely dead.
When you plug in the power adapter and press on the power button, there is no signs of life at all. The laptop will not make usual noises, LEDs will not light up, the fan will not spin, the screen is blank and black, etc… In short, the laptop is dead.

What you can do in this case?
1. Make sure the wall outlet is working and the laptop DC adapter is getting power from the outlet. Try another wall outlet.
2. Test the laptop DC power adapter, make sure the voltage output is correct. You can test the DC power adapter with a voltmeter.
3. Let’s say the DC adapter is fine and the adapter outputs correct voltage. In this case unplug the power adapter from the laptop, remove the battery, wait for 1-2 minutes, plug in the adapter and try turning on the laptop again.

OK, you tested the adapter and it’s bad. If you decide to replace the original DC adapter with a generic one, you’ll have to follow this rule:
The voltage output on your new adapter has to be exactly the same as on the original adapter. The amperage on the new adapter could be the same or higher.
If nothing helps and the laptop is still dead, apparently the motherboard is fried or there is a problem with the DC power jack. It’s possible the DC power jack is broken and the motherboard is not getting any power from the adapter. In this case you’ll have to disassemble the laptop and replace the power jack. Check out this guide for fixing laptop power jack.
Example 2. When you plug the DC power adapter and press on the power button, the laptop starts making normal noises, the LEDs work properly but noting appears on the screen. The laptop will not start.
Troubleshoot dead laptop
First of all, take a closer look at the LCD screen. Look at the screen under bright light. It’s possible that the image is still on the screen but it’s very faint. If that’s the case, check out these tips for troubleshooting laptop with backlight failure.

Connect external monitor
If there is no image on the laptop LCD screen, test the laptop with an external monitor. Connect an external monitor to the VGA port on your laptop and turn the laptop on. You can toggle video output between the internal LCD screen and external monitor by pressing Fn and F4 keys simultaneously on HP laptops, Fn and F5 keys on Toshiba laptops, Fn and F7 keys on IBM laptops. Other laptops may use different key combinations.

Let’s say the external monitor works fine but the internal LCD screen has no image at all. If that’s the case, your problem could be related to the LCD screen or the video cable. Also, make sure the video cable makes good connection with the motherboard and the LCD screen. Try reconnecting, reseating the cable.
Test external video
In my case, both internal and external monitors were absolutely dead. Neither of them had image. That means the problem is not related to the LCD screen or the video cable. From my experience I know that this problem could be related to the laptop memory.

Replace reseat memory module
Try reseating the memory module, maybe it’s not making good connection with the memory slot. Try cleaning contacts on the memory module with pen eraser. Try moving the memory module into another slot. Try replacing the memory module with another known good module, it’s possible that your original module is dead.
If you have two memory modules installed you can try removing them one by one, it’s possible that one of the modules is bad. Try installing different memory modules into different memory slots.
In my case reseating, swapping the memory module didn’t help. I was pretty confident that my problem is not memory related and I moved on.
Remove hard drive DVD drive Disconnect display
Try removing battery, hard drive and DVD drive and turning on the laptop without these components.
Also, try turning on the laptop with an external monitor when the video cable is unplugged from the motherboard. If the laptop start with video on the external monitor, apparently there is something wrong with the laptop display panel.
Remove laptop components
In my case removing the hard drive and DVD drive didn’t help. Unplugging the video cable didn’t help either.
I continued taking my laptop apart piece by piece and tested it after each step.
I removed wireless card, modem, disconnected the keyboard but it didn’t help.
Test laptop with external monitor Disassemble laptop
I still wasn’t able to boot the laptop with video on the external monitor.
Finally, I disassembled the laptop and removed the motherboard.
Test laptop motherboard
On this picture you see my final test. The motherboard has been removed from the base and I assembled basic barebone system on my bench.
1. Motherboard. Like on most laptops, in my case the video card is integrated into the motherboard
2. CPU with heatsink and cooling fan.
3. Known good memory module.
4. The power button board witch I need to turn on the system.
5. Working DC power adapter.
Still cannot get any video on the external monitor. The system turns on, the cooling fan starts spinning but there is no video.
At this point I’m 95% sure that the motherboard is dead. CPU failures are not very common, so it must be bad motherboard.

Service Handphone


Masalah Keypad Handphone
No Charging Handphone
Hp tidak ada suara
CONTACT SERVICE Handphone Problem
Troubleshooting Dan Komponen utama
Signal Hilang

Kode Rahasia Hp Sony Ericsson
Kode Rahasia Hp Nokia

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Jumper tricks charge way for Nokia 7210 also Nokia...

Nokia 6670 7610 LCD ways
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Nokia 6230 Problem
Nokia 6260 Problem

Motorola C200 Problem

Motorola CD 928 Problem
Motorola E365 Charging Problem

Nokia 6510 Problem
Nokia 6310 Problem
Nokia 6600 Problem

Tips membeli BLACKBERRY bagus
Upgrade OS BlackBerry
Menyelamatkan data Hp
Manual GPRS setting

Setting GPRS PDA o2
Yahoo Messenger chatting di handphone

Service LCD TV LG 42LC2D Mati

Nokia Symbian-based phones - Reset

Handphone Smartphone and PDA Toubleshotting

All Symbian-based phones that most of the damage could be in because Software.Sebelum use software tool to repair (repair box) should try to do repairs themselves by way of a master reset on the phone. Master reset method on each brand and certainly a different type of phone, for more details see some trick or method of Master reset on a variety of mobile smartphone type the following: Here is an experience - our experience in repairing damage to your phone using a secret code in various types of mobile phones:

Hang Overcome can make your phone slow performance or no function at all
Cope with frequent mobile phone or auto restart on of
Overcome phones often die alone in a few minutes or hours
No Overcome ringing caused you activate switches off the menu but does not know how to turn it on

Overcome Compose SMS can not perform the alphabet / letters, but that appears only Numerically, or numbers only
Can not write SMS Overcome due to missing folder
One Overcome Icon menu in the phone can not be activated or enabled
Overcome the emergence of the phone message LOCK PHONE
Views Overcome chaotic and irregular menu
Overcome the virus into the cell phone
Overcome the emergence of the message "application closed" on mobile phones
Overcome the emergence of the message "System Error" on your mobile phone
Overcome the emergence of the message "Phone start-UP CONTACT retailers" on mobile phones
Overcome nokia blink four times on your Nokia series symbiyan
Overcome an error in the camera take pictures or NOT READY message appears and the camera can not be used
Overcome the emergence of the message "MEMORY FULL" when the content is still a lot of memory in the empty condition

Some important things to consider before making such repairs: 1. The phone will be back at the beginning like the beginning of setting factory settings, so that the necessary data such as phonebook, ringtones, pictures and applications will hilang.Gunakan congenital such as PC suite software for backing up data or if the phone you are using external memory to memory data move these. 2. Memorize the location of the language setting, to prevent the display language changes that can make you confused, especially on the phone - a phone that you do not understand the menu. 3. For the series comunicator Officenya you can delete files and should be installed again.
Related Posts !!

Service Toshiba laptop suddenly shuts down

Why my Toshiba laptop suddenly shuts down by itself without warning?

“My Toshiba laptop suddenly shuts down by itself without any warning. Sometimes it works fine for hours, sometimes it shuts down in 10-15 minutes.” This complaint we hear from our customers over and over again. About 15-20% of all Toshiba laptops we get for repair, suffer from an overheating problem. Yep, OVERHEATING!
This is one of the most common problems with Toshiba laptops we deal with.
Indications of laptop overheating problem:

1. The keyboard and the bottom of your laptop are very hot when the laptop is working.
2. The CPU fans are working all the time at maximum rotation speed and operate much louder than before.
3. The laptop suddenly shuts down by itself without warning. When it just started, the laptop was shutting down after 1-2 hours and how it shuts down after 5-10 minutes of operation.
4. The laptop works fine when it runs idle, but shuts down as soon as you start using any memory demanding applications (DVD player, image editing software, video editing software, etc.).

If the CPU heatsink is not clogged with dust and lint completely, you can use canned air and just blow it inside the laptop through the openings on the bottom and on the sides. It’s nice as a precaution measure, but it might not work if your laptop already has a problem and the heatsink is completely clogged.

1. Open the laptop case, so you can access the CPU fan and the heatsink. In some cases you can access the heatsink through the latch on the bottom of the laptop. Sometimes (for example Toshiba Satellite A70/A75) you have to open the laptop case all the way down.
2. Carefully disconnect the fan cables on the system board and remove the fan. If the fan makes unusual sound when it spins (grinding sound), I would recommend to replace the fan.
3. Clean the fan and the heatsink with compressed air.
4. I would also recommend removing old thermal grease from the CPU and applying new grease for better heat conductivity.

UPDATE: I just received a nice tip from MC N’Colorado. I think it could be useful for all of you with guys:
I decided to use a shop vac to suck the dust out and it worked. I tested it by letting the machine run all night and it worked. It’s been a couple of weeks now and I’m glad I did it. I was ready to take the machine apart, now I’m glad I didn’t. I’d suggest you use a heavy duty shop vac to clean out the fan and heat sinks first.
I agree. Try to fix the problem without taking the laptop apart first but I would recommend using a powerful air compressor instead of a vacuum cleaner.
If your laptop is still under warranty, you can take it to any Toshiba Authorize Service Provider and fix the problem at no charge to you.
Toshiba laptop disassembly guides with pictures and instructions.

Cara Format Ulang Handphone (HP)

Cara Format Ulang Handphone (HP)
sony ericsson handphone
samsung handphone
nokia handphone

Servicel LCD TV LG

Service Manual LCD TV LG 20LC1R


1. No power (LED indicator off)
- Check short of main B/D or Change Lips Change U406 Change LED Assy Check 15V or 5V of Lips Check Output of U406 Check LED Assy Check J103, J125, J126 Connector Fail Fail Check Output of Change Q402 Q402 Fail Pass Fail Pass Pass Pass :[A]Process

2. No Raster
- Check LED Status on display unit Check the input/ Output of U301 Check U401~U405, U407, U409 Check inverter Connector or inverter Check input source cable and jack Repeat A PROCESS Fail Change U401~U405, Fail U407, U409 Change U301 Fail Change inverter Fail connector or inverter Change panel link Fail cable or module Check panel link Cable or module

3. No Raster on AV Signal (SCART, CVBS, S-VHS)
No Raster on TV(RF) signal
Change L108, L109, L110, L112, R194, R198, R184
Check the signal of L108, L109, L110, L112 R194, R198, R184
[A] Process Check the output of TU701 Check the input/output of U301 Check the input/output of U101 Check input source cable and jack Re-soldering or Change the defect part Check X301 Fail Re-soldering or Change the defect part Check 5V, 33V of TU701 Re-soldering or Change the defect part

4. No Sound
Check the speaker wire Change source input Check the input source Fail Pass Re-soldering or Change the defect part Check X301 Check the input/output of U301 Fail Pass Re-soldering or Change the defect part Check the input/output of U201 Fail Pass Check the speaker Change speaker

Service HP

Cara Service HP

Technic jumper handphone nokia N70 - 2
Technic jumper handphone nokia N70
Technic jumper handphone nokia 1110
Technic jumper handphone nokia 1600
Technic jumper handphone nokia 1650

Kumpulan Skema TV
Skema TV Toshiba 34HF85-sm
Skema TV Toshiba 34HF84-sm
Skema TV Toshiba 34HDX82-sm
Skema TV Toshiba 29AS42-svm
SKema TV Toshiba 32AF41-sm
Skema TV Toshiba 20A44-sm
Skema TV Toshiba 20A43-sm
Skema TV Toshiba 20A42-svm
Skema TV Toshiba 20A22-svm
Skema TV Toshiba 19A25-sm
Skema TV Polytron strf6653-tb1238
Skema TV Toshiba 29cz5 de
Skema TV Toshiba 2140td
Skema TV Toshiba 218x8m
Skema TV Sharp ctv 14r20 - 20r200
Skema TV Polytron strs6706-
Skema TV Sharp ix3368
Skema TV Sharp 20R200
Skema TVPanasonik_tc
Mode Service Dan Diagram circuits
Service mode TV Panasonic CT-Z1422 E
Service mode TV Panasonic TX-28W3 E
Service mode TV LG Flatron E
Service mode TV TCL E
Service mode TV JVC AV 28 WFT E
Service mode TV Goldstar E
Service mode TV Akira TB1238 E
Service mode TV Akira 14/21S01 U
Service mode TV Akira 8821 U
Service mode TV Thosiba 2150 S5E U
Service mode TV TCL 2U
Service mode TV Sharp U
Service mode TV Sanyo Television U
Service mode lainnya......>>
Diagram circuits IC LM2469 - LM2480 T
Diagram circuits IC LM1237 T
Diagram circuits IC TDA4841 - TDA486 T
Diagram block circuits IC UC3842 T
Diagram block circuits IC 68F65 T
Diagram block circuits IC AN5891SA-E1V
Diagram block circuits IC LA76600M.
Diagram block circuits IC MN1311AD
Diagram block circuits IC TB1253N
Diagram block lainnya … >>
Tulisan Terakhir

* Cara share internet dengan 2 LAN card
* Setting jaringan warnet berbasis windows xp dan ADSL modem pada speedy
* Cara setting modem ADSL
* Obat Sakit Maag
* Wanita Suka Dipeluk Usai Bercinta
* Obat Untuk Semua Sakit Perut
* Download Smadav 8.3 Revisi 7 Oktober 2010
* Service mode tv sharp alexander
* Service TV Samsung
* Service TV Toshiba
* Service TV Philips
* Service TV Sony
* Reset TV Samsung Model: C15344 (Chassis S51A)
* Cara service LCD TV LG 20LC1R

Rangkaian Elektronika
Cara bikin audio meter
Cara bikin kontrol bass-treble
Cara bikin Audio Light Modulator
Cara bikin 5 band graphic equalizer
Cara bikin Digital Volume Control
Cara bikin Sound Controlled Filp Flop
Cara bikin Infrared Head Phones
Cara bikin interkom transistor
Cara bikin Stereo Channel Selector
Cara bikin Melody kartu ucapan
Cara bikin Big Ben Sound
Cara bikin sirine Polisi
Cara bikin Alarm siang malam
Cara bikin Alarm kebakaran
Cara bikin alarm Mobil anti maling l.
Cara bikin alarm indicator batas air
Cara bikin Alarm hujan
Download Anti virus gratis
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Cara Service Laptop
Cara service pendingin Laptop Acer Aspire.
Cara upgrade memori Laptop Acer Aspire.
Cara service modul pendingin di Acer Aspire.
Cara untuk memperbaiki masalah hardware
Cara menghubungkan laptop hard driveTroubleshooting laptop dengan kegagalan
Cara mengganti lampu backlight laptop (CCFL) Laptop layar LCD berubah sepenuhnya putih
Cara mengganti layar LCD Laptop rusak .
Bagaimana menguji layar LCD inverter laptop
Cara memecahkan masalah Laptop mati.
Cara service konektor keyboard pada laptop.
Bagaimana membongkar laptop keyboard
Cara menghapus dan mengganti hard drive
Service manual for Sony Vaio laptop
Circuits Elektonika
120 Watt Audio Power Amp t
Alarm kebakaran circuits
Alarm mobil anti maling s
Alarm penanda hujan s
Audio Power Indicator s
block circuits IC 68F65 T
block circuits IC AN5891SAV
block circuits IC LA76600M.
block circuits IC LM1237 T
block circuits IC LM2469 T
block circuits IC MN1311AD
block circuits IC TB1253N
block circuits IC TDA4841 T
block circuits IC UC3842 T
block lainnya … >>
Car audio BCL 20W Amp s
Digital Volume Control s
Mosfet 300 Watt Power s
Mosfet Audio Amp 70 Watts
Pemancar Radio FM 1s
Stereo Gain Audio Trimer t
Problem TV
Cara membuka mode service TV konka
Cara analisa tv ndak nangkap siaran
Cara menganalisa kerusakan Flyback
Data kaki Flyback FBT 2
Data kaki Flyback FBT
Cara service TV polytron diva
Cara service TV detron
Cara service TV goldstar
Cara service TV panasonic alfa gold
Cara service TV panasonic 21 top dome
Data kaki tabung CRT
Cara Test Layar CRT
Cara service TV cina
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Alternating Flasher

Dancing Lights

Switch using a single Chip

Christmas Star

Running Message Display

Automatic Room Lights

Emergency Light

Automatic Dual output Display

Pot plant water tester electronic

Programmable Digital Code Lock

Ultrasonic Pest Repeller

Simple IF Signal Generator

TV remote control Blocker

Flashy Christmas Lights

JAM(Just A Minute) Circuit

Electronic Scoring Game

Soft ON/OFF switch

Control electrical appliances using PC

Car anti theft wireless alarm.

Dome light dimmer for Cars

Wiper Speed Control
Komentar Terakhir

* Dany pada Service TV
* magetan pada MENU SERVICE CODE TV
* bas pada Rumus Menghitung Masa Subur Sistem Kalender Cara Mencegah Kehamilan Hubungan Suami Isteri


Tips Copy Player DVD To Flash Disk

no signal cutoff pada ic ctv222s

Membuka Service mode tv konka

Analisa Tv Tidak Dapat Siaran

Data Pin Kaki Flyback Tv 2

Data Pin Kaki Flyback Tv

Service Polytron Diva

Service Tv Detron

Service Tv Goldstar

Service Panasonic Alfa gold

Saervice panasonic 21 Top done Rusak

TV Polytron Proteck

Data Pin Kaki Tabung CRT

Test Tabung CRT TV

Service Tv China

Service Tv Digitec

LG Flatron 775FT Monitor

Sharp TV 25"

Advance Monitor 15 Black Screen Dark

Polytron TV parameter settings


Computer Power Supply



Sharp TV


AKIRA flyback modification: BSC 25-1055
Cara Service HP

Technic jumper handphone nokia N70 - 2

Technic jumper handphone nokia N70

Technic jumper handphone nokia 1110

Technic jumper handphone nokia 1600

Technic jumper handphone nokia 1650

LCD TV mati total

**ahmad muzakki

Berikut adalah tehnik dasar bagaimana cara menganalisa kerusakan pada pesawat televisi :

-jenis-jenis kerusakan dan cara mengetahui kerusakan :

1. mati total.
- jika pesawat televisi tiba-tiba mati, pertama kali yang harus dilakukan adalah :
a. buka smua skrup yang ada.
b. lihat apakah fuse/sekering putus,bila putus coba ganti dengan ukuran ampere yang sama trus nyalain. jika fuse putus lagi berarti daerah power suply yang rusak.

cara mengatasinya :
- Coba ukur elco yang paling besar.ukurannya biasanya 100uf/400v.ukur bolak-balik pake avometer skala 10 ohm.jika keduanya nyambung kemungkinan diode atau transistornya rusak.

pengukuran dioda Tips Bagus Teknik Dasar Service TV

- Coba test/ukur dioda yg ada di dekat saklar on/off,ada 4 buah.pake avometer di skala 10 ohm.ukur bolak-balik.jika nyambung keduanya berarti rusak.ganti dgn ukuran yang sama.
- Coba ukur transistor yang besar,berkaki tiga.ukur kaki nomor 2 dan 3 bolak-balik pake avometer skala 10 ohm.jika keduanya nyambung berarti rusak.ganti dengan nomor yang sama.
- jika elco besar diukur sudah tidak nyambung berarti suply udah bagus.coba nyalain lagi
- kalau masih ndak mau nyala coba ukur transistor horizontal yang ada deket plyback.caranya sama dgn diatas.jika rusak ganti dgn nomor yg sama.trus coba nyalain lagi.insyaallh tv dah bisa nyala.

Bertukar Link di Blogspot

Cara Bertukar Link di Blogspot atau Blogger

Nah kalau anda ingin membuat backlink atau bertukar link di blogger. Anda bisa menggunakan gadget yang sudah disediakan oleh blogger. Ada 2 macam gadget yang bisa anda gunakan yaitu daftar blog atau daftar link.

Dengan menggunakan daftar blog,maka nama teman anda akan muncul disertai dengan post update terbarunya. Sedangkan bila menggunakan daftar link hanya akan muncul nama teman anda saja. Keduanya “sah” bila akan dipakai untuk berbcaklink ria.

Selain itu anda juga bisa menggunakan kode html untuk membuat backlink di blogger. Yaitu dengan menambahkan gadget HTML/Java script. Yaudah yuk langsung menuju TKP. ;)

1. Cara Bertukar Link di Blogspot/Blogger dengan gadget

1. Login ke blogger. (

2. Klik menu “Tata Letak” (Layouts) -> Tambah Gadget -> Daftar Blog/Daftar Link

3. Isi Judul dan alamat URL blog yang akan dilink di tempat yang tersedia.

4. Klik simpan atau save.

5. Selesai.

*anda juga bisa menggeser posisi blogroll link tersebut dengan meng”drag” kotak link tersebut dan menempatkannya ditempat yang anda inginkan.

2. Cara Bertukar Link di Blogspot/Blogger dengan Kode HTML/Javascipt

1. Login ke blogger. (

2. Klik menu “Tata Letak” (Layouts) -> Tambah Gadget -> HTML/Javascript

3. Isi judul sesuai keinginan anda. Misal: Teman saya

4. Masukkan kode berikut ini:

  • nama blog teman anda

  • contoh:
  • tyas rani

  • 5. Simpan dan selesai.

    Nah itu dia tips dan trick cara membuat backlin di blogger/blogspot. Salam Super

    Service center LG Electronics di Jakarta

    LG Electronics Indonesia and LG products.
    Please check out the FAQs for general information on LG Electronics Indonesia.
    If your inquiry has not been answered through the FAQs

    Products & Service Information

    0-800-123-7777 (Bebas Pulsa): Customer Service
    (+6221) 5797-3113 : Head Office
    Office Locations

    Head Office : One Pacific Place, 11th Floor
    Sudirman Central Business District (SCBD)
    Jl. Jend. Sudirman Kav. 52-53
    Jakarta Selatan 12190

    Tel. (+6221) 5797-3113
    Fax. (+6221) 5797-3103

    Service Center : Jl. Panglima Polim Raya No. 69
    (PUSAT) Jakarta Selatan

    Tel. (021) 7247738/63
    Fax. (021) 72788136

    Factory1 : Block – G, MM 2100 Industrial Town
    Cikarang Barat
    Bekasi 17520
    Jawa Barat

    Tel. (+6221) 597-8320
    Fax. (+6221) 8998-2348

    Factory2 : Jl. Tabri Desa Cirarab. Legok,
    Tangerang 15820

    Tel. (+6221) 5978320
    Fax. (+6221) 5979704

    Service center LG Electronics di Jakarta
    Alamat pusat layanan servis produk-produk LG Electronics ( service center LG Electronics ) di Jakarta :

    Jl. Panglima Polim Raya No. 69
    (021) 7247738/63

    Jl. Biak Raya No. 21B-C. Jakarta Pusat
    (021) 63867369 / 70

    ITC Cempaka Mas Blok I No.741-742
    Jakarta Pusat
    (021) 42901978

    Mal Ambassador Lt.3 No.8 Jakarta Selatan
    (021) 59739654

    Mal Taman Anggrek Lt. 3, Blok E8/341
    (021) 5639082

    Senayan City Lt. 4 No. 6 Jakarta Selatan
    (021) 72781540

    ITC Roxy Mas Lantai Dasar D31 Jakarta Pusat
    (021) 6388287

    Komplek Roxy Mas Blok C3 No. 37
    Jl. Hasyim Ashari
    (021) 6331925

    Pacific Place Mall Lt. 3 No. 3-29
    (021) 57973055

    ITC Fatmawati Ground Floor No. 118, Jakarta Selatan

    Mall Grand Indonesia, LT3 Unit3 No. 50

    Untuk daftar alamat pusat layanan servis produk-produk LG Electronics di seluruh wilayah Indonesia, silahkan buka :