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Jon183

Powerbook G3 Lombard replacing LCD panel not whole screen

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Hi, I got my replacement LCD today and I am wondering how to replace just the LCD panel and not the whole screen assembly, I cant seem to find any documentation about it online, maybe im not digging hard enough.

Edited by Jon183

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You'll probably need to remove several screws on the outside borders of the screen, some metal tabs and maybe some tape to get the panel out.

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You've motivated me to do the same for one of my Pismos. There's a new screen on it's way to me from the UK now, s/b here around the new year. 

 

Did you run across any tricks or gotcha's while doing yours that might be useful to know?

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I believe the case uses regular philips screws but you will need a set of hex drivers too, cant remember what sizes.

 

Remove all those rubber bits in the picture, remove the screws under them, I used a very small flat head screwdriver to pry out the rubber protectors but im not sure it was the best idea. Make sure the rubber bits are all stored in a container right after removing, I lost 2 of the top rubber bits. I used a plastic prying tool to go all the way around the lid except for the large hinge at the bottom and then I removed the plastic cover. I remember there were screws holding the screen in and other screws for the screen bracket. Some dont need to be removed, cant remember which. The connector for the backlight unfortunately doesn't unplug by removing just the LCD enclosure in the lombard, it appears that the connector runs through the screen into the logic board chassis in mine. I snipped both the new LCD backlight wires and old ones, there were two connectors, a thicker one and thinner one in both old and new wires, i connected thickest to thickest and both thinner ones and it worked, absolutely made sure both wires were insulated properly with electrical tape but should of used shrink wrap too.

 

Be careful if you follow what I said, I dont know if its the best idea, proper replacement documentation may exist somewhere, you may be able to connect the new backlight wire to the correct socket without cutting both ends and soldering old and new together, im sure I voided my LCD warranty with what I did.

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Edited by Jon183

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PowerBook Pismo is same - but it has extra item which is airport antenna in it and the frame inside is kinda different to lombard ones. But Lombard and Pismo shares the same LCD panel.

Cheers

AP

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Thanks for the info guys. I take it from your description that you did not disconnect the display assembly from the main unit? So you just used the existing data cable and snipped and spliced the backlight cable? I don't use the airport antenna anyway (just use a USB powered TP Link via ethernet), so that won't be an issue.

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Its easier to disassemble whole thing - it can be done (i've done it before) from working from behind of the cover, but in these days I find it easier to remove whole display assembly from PowerBook

Cheers

AP

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Have another question for Jon183. I just received my replacement screen today from the UK. Not bad, ordered on the 7th. Upon opening the package I noticed the unit is actually an Hitachi TX36D something or other, which is a 14.1 inch XGA, but not the LG Phillips I ordered. Is that what you also received, or did you get the LG screen? I haven't taken the Pismo apart yet so can't compare directly 

 

tnx in advance

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22 minutes ago, CharlesT said:

Have another question for Jon183. I just received my replacement screen today from the UK. Not bad, ordered on the 7th. Upon opening the package I noticed the unit is actually an Hitachi TX36D something or other, which is a 14.1 inch XGA, but not the LG Phillips I ordered. Is that what you also received, or did you get the LG screen? I haven't taken the Pismo apart yet so can't compare directly 

 

tnx in advance

That mob from UK - you need to ask specifically what you want otherwise they'll send out random display but it appears the connector is the same..
Cheers

AP

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I thought I did, their website lists the LG Phillips LP141XA. The paperwork I received with the order shows that number in the description field but the part number is the Hitachi part number. Perhaps it's a direct replacement, I haven't been able to find any data one way or the other. Will just have to try it I suppose.

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I got the LG Philips panel, does this hitachi panel have the same specs and connector as the one I have? Should be able to check online.

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Specs are similar, but it's a glossy screen as opposed to the matte of the Pismo. I'll be taking the Pismo apart tomorrow so I can do a side by side comparison. You received the LG so they had them recently. Their website description of the LG says it's matte. Seems they could simply have asked me if I wanted a glossy substitute. 

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So, I've completed my Pismo tear down and compared the Hitachi and LG screens side by side. The data cable connector does fit. However, it's located 10mm nearer the top of the screen than the LG. Which means the data cable is 10MM too short. So unless I could somehow stretch the flex etch, that alone is a no go. Combined with the glossy vs. matte issue this thing is a comprehensive fail. I've requested a refund. We'll see how it goes. For now RequireIT in Ipswich, UK is on my (lengthening) list of dodgy vendors.

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29 minutes ago, CharlesT said:

So, I've completed my Pismo tear down and compared the Hitachi and LG screens side by side. The data cable connector does fit. However, it's located 10mm nearer the top of the screen than the LG. Which means the data cable is 10MM too short. So unless I could somehow stretch the flex etch, that alone is a no go. Combined with the glossy vs. matte issue this thing is a comprehensive fail. I've requested a refund. We'll see how it goes. For now RequireIT in Ipswich, UK is on my (lengthening) list of dodgy vendors.

Bugger hey.... I know the Samsung and LG are the same....
Cheers

AP

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Just to close this out, the RequireIT folks refunded my money and told me to keep the panel. They also have no more of the LG Phillips panels, so Jon183, it looks like you may have gotten the last one, from that source, anyway. So I'm left with one panel I can't use and back in the hunt for an LG Phillips. It was a good learning experience in any event. In the meantime I managed to score a fully working 12" Powerbook 1.5 and a 1GHz Titanium (sans working batteries) for a total of $50, so the fun goes on... 

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What a shame, you could probably sell that panel to compensate for a 2nd hand one like this:

https://www.ebay.com.au/itm/Apple-M5343-Macintosh-PowerBook-G3-Lombard-14-LCD-Display-Screen-Assembly-OEM/332147607322?epid=1700260106&hash=item4d558a471a:g:Hj4AAOSwOgdYvxeL

 

AlphineRaven said they share the same panel, you could drop the LCD from this 2nd hand one into your LCD housing and keep the airport antenna also.

Edited by Jon183

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Well...., I'm working on a plan B. Perhaps all is not lost. I MAY be able to make it work, at least for light usage. Does that flex cable really need two wraps around the hinge bracket? I suspect it does for long term use, but we'll shortly see if it will do with one wrap if I don't ask too much of it. Electrically the panel works fine and is in fact matte, I was thrown by the protective plastic cover. If this works mechanically perhaps we'll have an alternative to the LG available as long as one is willing to try a little hackery.

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And the verdict on Plan B is.... Not so good. Removing the second wrap around the hinge leaves the flex cable critically unsupported and resulted in a rip in the edge of it, breaking enough connections to, well, put paid to the experiment.  Now I need a new data cable and a Plan C. Live and learn.

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29 minutes ago, CharlesT said:

And the verdict on Plan B is.... Not so good. Removing the second wrap around the hinge leaves the flex cable critically unsupported and resulted in a rip in the edge of it, breaking enough connections to, well, put paid to the experiment.  Now I need a new data cable and a Plan C. Live and learn.

Ouch - then that was the reason why they had 2nd wrap...

Time to locate another laptop eh I am looking for another PowerBook Pismo or Lombard as I want parts for it - I missed out a cheap one on ebay on other day (was bidding far too low)

Cheers

AP

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Thanks Alpine. The Pismo was free to me (although it's no longer as free as it was:(). I did a quick look for another cable. Found one for an LG panel at $80 (ouch!) which would still be too short for the Hitachi panel, but found more for the Samsung panel that was apparently also used in these things. One of these is available for $26. Someone mentioned the Samsung panel elsewhere, does anyone know the part number for those? I wonder if those would be more available, might make more sense than beating this dead horse...

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Just wanted to close this off. I managed to find a replacement cable for the LG panel, as well as a "new" correct LG Phillips panel, both right here in the US, in Texas.  Installed both and that Pismo is bright eyed and bushy tailed again. I now feel like I can replace a Pismo panel in probably 15 minutes or less, pretty simple, no hidden tricky parts.

 

Cable was $12 and included a set of hinges, the panel was $36. Not too bad.

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