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Repair Powerbook G4 Backlight Not Working Tutorial

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Powerbook G4 Backlight Not Working

Silver wire (pin 1, perhaps): 0V Blue wire (2): +5V Gray wire (3): 0V Black wire (4): +12V Green wire (5): hardwired to ground So, I'm in for about 90 bucks Working... no love. 4) I figured that somewhere along the way, I burned out the replacement inverter board that I bought (OK, OK, I put a meter across the outputs... Preview my answer Post my answer View Statistics: Past 24 Hours: 0 Past 7 Days: 1 Past 30 Days: 7 All Time: 2,578 22,573 Free Manuals 89,433 Solutions 6,854 Devices iFixit

share Share on Twitter Share on Facebook Email Link Like + Quote Reply SawyerTHEBEST, Feb 7, 2013 SawyerTHEBEST thread starter macrumors member Joined: Feb 5, 2013 #4 da efff maine DA [email protected] from Late-Breakers Tags Computers Related Stories 10 hidden MacOS Sierra features you need to know Apple MacBook Pro sales already set to surpass 2015 MacBook​​​ How to buy a new at this point it's very important to me to know if there's a possibility of doing tests. FFcossag 93,211 views 16:00 A week with a G4 - Are they obsolete? - Duration: 8:05.

Unfortunately, I think this project might be backburnered, or abandoned, given the fact that there's no Flash player and Java is kinda tricky for PPC... Thanks! -EDIT If I unplug the Inverter cable from the logic board then reconnect it, the backlight flashes on for about 1/2 second again... The inverter in my G4 is attached to the underside of the DVDROM - part no.

It doesn't see the hardware, so the options for that piece of hardware disappear. Yes No Voted Undo Score 0 Cancel Add a comment 0/1024 Cancel Post comment Are you sure you want to delete this zzzzzz? Louis Rossmann 51,267 views 26:29 Powerbook 17" Repair - LCD Disassembly - Duration: 9:57. RalphHow to Apply Thermal Paste 03/04/2010 by rj713 Add a comment 0/1024 Cancel Post comment Are you sure you want to delete this zzzzzz?

Not only will the screen not dim (which I can live with), but it also won't shutoff when going into sleep mode (the display goes away, but the backlight remains lit). Watch QueueQueueWatch QueueQueue Remove allDisconnect Loading... Cancel Ferex Rep: 13 3 3 Posted: 03/04/2010 Options Permalink History The thing that frightens me is having to deal with thermal paste.... Is there a micro/nano fuse on the inverter board that may have blown if the o/p has in fact been shorted?

Mar 23, 2006 9:23 PM Helpful (0) Reply options Link to this post by superimac, superimac Mar 23, 2006 11:48 PM in response to Tuttle Level 1 (0 points) Mar 23, Try to find a cracked LCD panel on ebay (Titanium or Alu PBs LCD) and swap the backlight assy. 03/14/2010 by lemerise I think I am going to buy a lamp But, this poses yet another challenge. Powered up my mac, backlight came on and I could use it as normal.

Patrick Reply With Quote Quick Navigation Apple Notebooks Top Site Areas Settings Private Messages Subscriptions Who's Online Search Forums Forums Home Forums Community Information Center News and Community Announcements Community Polls Loading... It was this article that led me to think that, perhaps, I blew up the Inverter Board by putting a meter across it, so I purchased yet another Inverter Board. No light. 3) Next, assumed it might be the backlight itself, so I ordered one (complete with compatible 2-pin connector so no soldering needed).

Many thanks! Not something I would recommend as a test in any scenario really but try hitting the right hand side of the screen about halfway up (not with a hammer or blunt Just a few things to clarify... 1) NO WAY am I purchasing a new LCD, the one I have is immaculate (tested in another G4) 2) NO WAY am I purchasing Not easy to unscrew, I do it with a small jeweler flat screwdriver working from the display sides, Once the two screws are out then use the guitar pick to separate

  1. From there you can remove the LCD panel.
  2. Up next FIX your dark laptop screen! - UNDER $20! - (Inverter Board Replacement Tutorial) - Duration: 11:47.
  3. Concerning the backlight lamp I don't remember if you can check the lamp power continuity using a multimeter and checking the two contacts in the cable connector.
  4. No go...
  5. Single video file causes hanging...
  6. I will analyze the traces on the logic board to see if I can follow it to the IC Controller chip.
  7. If so you can enable keyboard brightness control via gnome-power-manager and upower by using my ppa.
  8. Please try again later.

I didn't get a chance to test this do you know if the powerbook screen could be removed completely? Did you empty your caches? Unseen Outlaw 18,940 views 2:32 How to test a laptop's LCD CCFL backlight cheaply and easily - Duration: 5:48. weblink And here is a discussion on the "no" symbol.

It was PURRRRTTY confusin I tell you whut Click to expand... I just don't know Click to expand... On Sale Now 3 Answers Filter by: Most Helpful Newest Oldest Chosen Solution lemerise Rep: 36.9k 159 52 66 Posted: 03/04/2010 Options Permalink History Hi Ferex, is your screen completely black


Members have access to different forum appearance options, and many more functions. Add to Want to watch this again later? Can I know what's the tension the inverter must give? I just don't know share Share on Twitter Share on Facebook Email Link Like + Quote Reply MisterKeeks, Feb 7, 2013 MisterKeeks macrumors 68000 Joined: Nov 15, 2012 #7 SawyerTHEBEST

How do I choose it? Was this answer helpful? Ubuntu Logo, Ubuntu and Canonical Canonical Ltd. Powerbook G4, 10.04 LTS PPC Adv Reply March 10th, 2011 #2 linuxopjemac View Profile View Forum Posts Private Message Visit Homepage I Ubuntu, Therefore, I Am Join Date Jan 2008

In your guide it seems I must disassemble the whole machine before getting to the monitor. Then we would find a setting of "Backlight"But I found that that setting was disappear~!!Check--> it a problem of Hardware? They are usually called pico fuses BTW. I have a universal inverter which just connects to a 12v supply - backlight works as normal.

Most of the time the cable is the culprit but the inverter board or the backlight could also be the problem. Was this answer helpful? Then, if it won't set the problem I will substitute the CCFL, not the whole display. Autoplay When autoplay is enabled, a suggested video will automatically play next.

Yes No Voted Undo Score 1 Cancel Add a comment 0/1024 Cancel Post comment Are you sure you want to delete this zzzzzz? Reply With Quote 12-25-2010,03:40 AM #4 bedfordrepairs View Profile View Forum Posts Member Since Dec 25, 2010 Posts 1 Im curious So that your post does not go totally to waste. Hi all~As the topic, my notebook pb G4's keyboard light no longer turn on even in dark side.I have already searched for this topic and seems connot find any answer.I found I've already replaced the Inverter AND CCFL tube (very fiddly) and still have the same problem.

still no backlight (tried both original bulb and new replacement bulb). I checked my tools, the only thing I miss is the spudger. As ever, many thanks!! 03/06/2010 by Ferex Spudger is very helpful but if you don't have one you can use a smooth guitar pick to disassemble cases and panels. Reply With Quote 10-30-2010,03:46 PM #2 mushy408 View Profile View Forum Posts Member Since Oct 30, 2010 Posts 4 Just pulled out a universal inverter to test the screen - 12v

If so, then something to try would be to max out the screen brightness (and leave it on max all the time) and short together pins 4 & 5. it no longer automatically lights up, and when I try the keyboard buttons I get the on screen popup, but it has a circle with a diagonal line through it indicating Someone could give and answer on this ??? 03/05/2010 by lemerise I contacted an Apple tech near my town. Am I forced to disassemble the logic board and all the components or I can only take away a few parts and then take away the display and operate only on

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