Tunnel vision on PB170

[Paralel]

Makes sense. But, just for my own curiosity, I'll set it up for a 3+ hours test since this data could be useful.

 

[TheBasement]

Update to my original video on page 1.

It’s been 11 months since I baked the panel on the 170. I had the machine on for 30 minutes and it exhibited the exact same minuscule amount of tunneling as it did directly after baking. No worse.
I know others have claimed this is a medium term fix at best, but unsure what that means exactly in terms of time. Seems good so far.

First photo is just at boot


Second photo is after 30 mins

 

[Paralel]

Update to my original video on page 1.

It’s been 11 months since I baked the panel on the 170. I had the machine on for 30 minutes and it exhibited the exact same minuscule amount of tunneling as it did directly after baking. No worse.
I know others have claimed this is a medium term fix at best, but unsure what that means exactly in terms of time. Seems good so far.

First photo is just at boot
View attachment 10929

Second photo is after 30 mins
View attachment 10930

The only reason it is called a medium term fix is that we have no long term data at this point. After a few more years, if no one sees any progression, I think we can call it a long term fix. After a decade or two I think it would be safe to call it a permanent fix.

 

[3lectr1c]

I've found some slight evidence that suggests that Hosiden made LCDs for the PowerBook 5300c (Color active matrix!)
First: https://www.ifixit.com/Guide/Apple+Powerbook+5300+Display+Replacement/5333
This guide uses a mix of photos, but see the ones that appear to be taken from a service guide of some sort? Does that display design look familiar?
Second: This part listing: https://www.thebookyard.com/product.php?cPath=31_669&products_id=23640
Hmm

 

[retr01]

I think Hosiden supplied cables while Sharp supplied LCDs. Blowing up the picture of the LCD on the iFixit link you provided shows that the LCD is a Sharp MFSTN made in Japan. LMS... and K5...44C114W2... ah we need that cable out of the way!

 

[3lectr1c]

That's the 5300 grayscale LCD. Casio and Sharp supplied those

This appears to be a Hosiden LCD

 

[retr01]

Ah. Hmmm. Those part numbers is what I get when I googled for "Hosiden CTFT lcd powerbook 5300c":

HLD1201-026120 LCD 12.1" HLD1201-026120 HOSIDEN cross HLK0902-400232 $email
HLD1405-011170 HOSIDEN 14.5 TFT
HLD1108-020140 LCD 11.3 TFT HLD1108-020140 HOSIDEN $175
HLD1104-020160/339 11.4 TFT HOSIDEN LCD
HLD0912-023010 10.4 LCD cross ref HLD0912-013040
LM-CG53-22NTK 12.1
11.3 TFT LCD HLD1104-020120 HOSIDEN $179
LCD 11.3 HLD1103-021140 TFT HOSIDEN

But, I am not sure if one of those is Apple P/N 661-0936.

 

[3lectr1c]

That part number throws a match to the Sharp LCD. The 5300cs/c/ce screens are 10.4", so the HLD0912-023010 would be the only possible match.
Edit: HLD0912-023010 is actually a 9.4" LCD.

http://macassemble.com/files/inventory/inventory.htm

Ctrl+F for 661-0936
Hosiden pulls a match for apple P/N: "632-0031 284UMK"
Different part number, this one better matches the part numbers on my Toshiba LCD cables for the 5300c and 5300ce.

Edit: Did some digging and the 632-0031 part number pulls several matches for a 5300ce ribbon cable (800x600 SVGA). Hmm.
My Toshiba 5300ce ribbon cable is P/N 632-0070 though, so it isn't the Toshiba cable.

 

[3lectr1c]

Here's an image of my two cables. 5300ce cable is broken unfortunately

 

[Paralel]

I found an LCD part number that I can't match to a manufacturer

LCD Panels:

661-0938 is the part number for the Casio LCD in the 190 & 5300
661-0937 is the part number for the Torisan or Sharp LCD in the 190cs & 5300cs
661-0936 is the part number for the Sharp LCD in the 5300c
661-1030 is the part number for the Toshiba LCD in the 5300c?
661-1031 is the part number for the Toshiba LCD in the 5300ce.

I'm guessing the 661-1030 panel is for the 5300c and is made by Toshiba?


Inverters:

661-1055 is the part number for the inverter for the 190 & 5300

922-1689 is the part number for the inverter for the 190cs & 5300c/cs/ce


Display Cables:

922-1619 is the part number for the Sharp display cable in the 190 & 5300
922-1443 is the part number for the Sanyo/Torisan display cable for the 190cs & 5300cs
922-1441 is the part number for the Sharp display cable for the 190cs & 5300cs
922-1439 is the part number for the Hosiden display cable for the 5300c
922-1440 is the part number for the Sharp display cable for the 5300c
922-1618 is the part number for the Toshiba display cable for the 5300ce

I can't make sense of this information. We know a Toshiba display cable exists for the 5300ce, and it's part number is 632-0070-02. We also know that a Toshiba display cable for the 5300c exists and has the part number 632-0069-02. However, the part numbers I looked up for both inverters are correct. I'm also curious about part number 922-1442. It's the number missing from the otherwise contiguous group of part numbers for the display cables.

Does anyone have a way of cross referencing parts and part numbers for these systems?

Also the model of Sharp for the 190cs & 5300cs is SHARP LM64C352.

View attachment 10977
Here's an image of my two cables. 5300ce cable is broken unfortunately

Have you toned/traced out the connections? It's entirely possible they may actually have very similar or the same pinouts. They appears to be different, but that may just be superficial. Or are the connectors different? I've heard different things over the years from them being completely compatible with one another, to them all using different connectors to interface.

It may end up being that there are 2, 3, or 4 different cable types. One possibility is that there is one for each type of screen, Passive Grayscale, Passive Color, Active Color, & possibly Active Color SVGA. Or Possibly Grayscale, Color, & possibly Color SVGA. The blackbird before it divided it's display cables into two types of cables, grayscale and color. The grayscale covered passive & active, as did the color cable. I guess the only way to know for sure is to tone/trace the various types of cables out.

Does anyone know the actual pinout of the 5300 series of cables? Is there a reference for that?

 

[Paralel]

Some potential good news for Blackbird users may actually be incoming as a result of the work done digging into the display subsystem for the 5300. I should have more information within the week, hopefully.

Some of it may require the assistance of other community members who are more knowledgeable about certain aspects than I, but it may bear some very useful fruit.

One thing I can be absolutely certain of now is that the inverter for the 520, 520c, 540, & 540c is NOT compatible with the screen for the 550c, it's underrated for the task at hand.

 

[3lectr1c]

Have you toned/traced out the connections? It's entirely possible they may actually have very similar or the same pinouts. They appears to be different, but that may just be superficial. Or are the connectors different? I've heard different things over the years from them being completely compatible with one another, to them all using different connectors to interface.

I tried using the 5300c Toshiba cable with my SVGA 5300ce display previously after seeing they were both Toshiba panels (was expecting a sharp and even ordered caps for it... that's why I had it open) but it just produced garbage. Definitely different pinouts, though the connectors are the same. I've also looked into repairing my 5300ce cable but at the very least it's far beyond my skill level.

I'm interested to hear what else you have to say on the matter.

Also, the iFixit article (which features a grayscale 5300) proves that a Sharp LCD was also used on them, though the part number is hidden.

Also, hmm. Looked up the 5300cs sharp LCD LM64C352 and it appears to match the look of the scanned service guide which I thought showed a Hosiden LCD.

Amazon.com: Sharp - SHARP LM64C352 10.4 CFSTN LCD SCREEN - LM64C352 : Electronics

Buy Sharp - SHARP LM64C352 10.4 CFSTN LCD SCREEN - LM64C352: Servers - Amazon.com ✓ FREE DELIVERY possible on eligible purchases

www.amazon.com

 

[Paralel]

I tried using the 5300c Toshiba cable with my SVGA 5300ce display previously after seeing they were both Toshiba panels (was expecting a sharp and even ordered caps for it... that's why I had it open) but it just produced garbage. Definitely different pinouts, though the connectors are the same. I've also looked into repairing my 5300ce cable but at the very least it's far beyond my skill level.

I'm interested to hear what else you have to say on the matter.

Also, the iFixit article (which features a grayscale 5300) proves that a Sharp LCD was also used on them, though the part number is hidden.

Also, hmm. Looked up the 5300cs sharp LCD LM64C352 and it appears to match the look of the scanned service guide which I thought showed a Hosiden LCD.

Amazon.com: Sharp - SHARP LM64C352 10.4 CFSTN LCD SCREEN - LM64C352 : Electronics

Buy Sharp - SHARP LM64C352 10.4 CFSTN LCD SCREEN - LM64C352: Servers - Amazon.com ✓ FREE DELIVERY possible on eligible purchases

www.amazon.com

Good find on the Sharp screen. That solves at least one mystery.

Since the c and ce cables are incompatible that means that are at least 3 or 4 different cable types..

Also it seems as though the Sharp 190/5300 and Sanyo 190cs/5300cs screens are the only one we for sure don't have a manufacturer part number for. Not bad, considering how many different screens they used. The Hosiden display cable is a mystery. I think its possible there is a Hosiden 5300c screen, but it might be so uncommon that getting a part number may be difficult.

Also, just to make sure, is the part number for the Toshiba LCD in the 5300c Apple part number 661-1030 or do the displays not usually have the Apple part number written on them?

 

[3lectr1c]

Sharp 5300c panel will have its own cable too, I can say with complete certainty the the connector on the display side is in a different location than on the Toshiba panels.

 

[3lectr1c]

Also, just updated the LCD index page on my site. Now has LCD model numbers for the 150 Casio panel, 190cs/5300cs Sharp panel, 1400c panel, and other info.

PowerBook LCD Index

macdat.net

If you know any LCD model numbers that I'm missing, let me know.

 

[Paralel]

Sharp 5300c panel will have its own cable too, I can say with complete certainty the the connector on the display side is in a different location than on the Toshiba panels.

Ah, so the difference isn't just type, but its also connector location. That does complicate things.

 

[3lectr1c]

Indeed.

 

[3lectr1c]

Also, pretty proud of this. I managed to grab the model number of the Samsung-made panel for the 3400c (also used a sharp) from a brief second in Action Retro's TAM video where he swapped it into his TAM (they use the same LCDs). Had to crank the resolution all the way to 4K and zoom way in, but I got it. Up on the webpage now.

 

[Kai Robinson]

@Androda makes flat flex cables for stuff, he may be amenable to creating something

 

[3lectr1c]

Considering apple only sold around 3 5300ce PowerBooks, I doubt it would be worth his time
Brought it up last year in this thread but I never got a responce: https://tinkerdifferent.com/threads/looking-for-flex-cables-to-recreate.928/