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Search found 14 matches

by natumbri
Wed Sep 16, 2020 7:56 am
Forum: ThinkPad R, A, G and Z Series
Topic: R60 LED mod - inverter board - DIM?
Replies: 7
Views: 578

Re: R60 LED mod - inverter board - DIM?

Yes, thanks RBS - I read that very informative post about replacing a CCFL; I just managed to stuff it up the first time around, despite the assistance available. Oh well, live and learn. The Google drive errors should be fixed now - I forgot to turn sharing on. Let me know if it is still broken. As...
by natumbri
Wed Sep 16, 2020 5:22 am
Forum: ThinkPad R, A, G and Z Series
Topic: R60 LED mod - inverter board - DIM?
Replies: 7
Views: 578

Re: R60 LED mod - inverter board - DIM?

Thanks RBS - I actually went ahead and did it before you posted, using the PWM pin info from the datasheet. I didn't have too much trouble with the inverter board, or modifying the led driver for PWM. What I did have trouble with was getting the CCFL out of the LCD. I completely stuffed up the first...
by natumbri
Tue Sep 15, 2020 7:05 pm
Forum: ThinkPad R, A, G and Z Series
Topic: R60 LED mod - inverter board - DIM?
Replies: 7
Views: 578

Re: R60 LED mod - inverter board - DIM?

So the lamp driver IC on the 41w1126 seems to be the same lamp driver that IBM/Lenovo use on other inverter boards: MP1010BEF In PWM mode, it is recommended that the PWM signal should be connected to the DBRT pin (pin 4) directly. So that's where I'll look. This amazing bit of pioneering work has so...
by natumbri
Tue Sep 15, 2020 6:16 am
Forum: ThinkPad R, A, G and Z Series
Topic: R60 LED mod - inverter board - DIM?
Replies: 7
Views: 578

R60 LED mod - inverter board - DIM?

Hi, I'm trying to install a LED strip backlight in my R60 15" 4:3. The inverter is a FRU 41W1126. I have a Unboosty-Blue driver board, which I will modify to take a pwm dimmer input. I have instructions for getting VIN, GND and ENA off the inverter board, but I don't have a location for DIM (the pwm...
by natumbri
Mon Sep 14, 2020 11:13 pm
Forum: Marketplace - Forum Members only
Topic: [LF/WTB] (Australia) t43 motherboard that will drive a 14.1" SXGA+
Replies: 3
Views: 361

Re: [LF/WTB] (Australia) t43 motherboard that will drive a 14.1" SXGA+

Yep. Replacing an ATI M22-64 of some kind, but, as you say, any T43/R52 board with ATI would be fine.
by natumbri
Sun Sep 13, 2020 10:12 pm
Forum: Marketplace - Forum Members only
Topic: [LF/WTB] (Australia) t43 motherboard that will drive a 14.1" SXGA+
Replies: 3
Views: 361

[LF/WTB] (Australia) t43 motherboard that will drive a 14.1" SXGA+

Hi all - anyone got a t43 motherboard they don't want anymore? Mine seems to be dead.

If I can't find one cheap, this post might turn into '[FS] (Australia) t43 parts (PM750, 14.1" SXGA+)'

COVID-19 lock down in Victoria, Australia - a perfect time to sort through the shed...

Cheers,
Nik
by natumbri
Fri Aug 21, 2020 6:29 am
Forum: ThinkPad R, A, G and Z Series
Topic: Thinkpad R60 (Frankenpad R601) - [SOLVED] SXGA+ problems (Possibly relevant to T60 / T61 too)
Replies: 13
Views: 1178

Re: Thinkpad R60 (Frankenpad R601) - SXGA+ problems (Possibly relevant to T60 / T61 too)

I just went and checked my T60 - the EDID in that screen says that it is a LG Philips LP150E05-A2 and it is yellow and dim (right). Horrible compared to the now apparently fully functional panel in my R601 (left), which says that it is an IDTech N150P3-L01, but which apparently only works with a LP1...
by natumbri
Thu Aug 20, 2020 8:48 pm
Forum: ThinkPad R, A, G and Z Series
Topic: Thinkpad R60 (Frankenpad R601) - [SOLVED] SXGA+ problems (Possibly relevant to T60 / T61 too)
Replies: 13
Views: 1178

Re: Thinkpad R60 (Frankenpad R601) - SXGA+ problems (Possibly relevant to T60 / T61 too)

Update - I tried the EDID for a Samsung SyncMaster 15.4" 1680x1050 WSXGA+ LCD (ie. the first EDID in the [linked] post). Here's how I did it and what happened. Loading the new EDID Instead of burning the EDID to the lcd, I told linux (ubuntu 20.04) to ignore the lcd EDID and load an EDID from a file...
by natumbri
Thu Aug 20, 2020 6:22 am
Forum: ThinkPad R, A, G and Z Series
Topic: Thinkpad R60 (Frankenpad R601) - [SOLVED] SXGA+ problems (Possibly relevant to T60 / T61 too)
Replies: 13
Views: 1178

Re: Thinkpad R60 (Frankenpad R601) - SXGA+ problems (Possibly relevant to T60 / T61 too)

Thanks again - yes, I think some sort of bad connection or something along those lines is a pretty good candidate, given how intermittent the problem is. I'll try your suggestions and report back here. If the problem is a consequence of the ageing of the components, maybe the information about it, a...
by natumbri
Thu Aug 20, 2020 4:47 am
Forum: ThinkPad R, A, G and Z Series
Topic: Thinkpad R60 (Frankenpad R601) - [SOLVED] SXGA+ problems (Possibly relevant to T60 / T61 too)
Replies: 13
Views: 1178

Re: Thinkpad R60 (Frankenpad R601) - SXGA+ problems (Possibly relevant to T60 / T61 too)

That [linked] post is not entirely clear and might also have typos in it (15.4" instead of 15.0"). Agree. Check the 2nd EDID, that might be what you need. Based on my check (using edid-rw), the 2nd EDID is the EDID I currently have - byte-for-byte identical. It is EDID for a 15.0" 4:3 IDT N150P3. I...
by natumbri
Wed Aug 19, 2020 7:36 pm
Forum: ThinkPad R, A, G and Z Series
Topic: Thinkpad R60 (Frankenpad R601) - [SOLVED] SXGA+ problems (Possibly relevant to T60 / T61 too)
Replies: 13
Views: 1178

Re: Thinkpad R60 (Frankenpad R601) - SXGA problems (Possibly relevant to T60 / T61 too)

Thanks for your ongoing assistance with this - it is much appreciated. The EDID in currently reported by my LCD is the second EDID in that post. Are you suggesting that I should flash my EDID with first one? I've checked that first EDID with edid-decode and it reports an EDID for a Samsung SyncMaste...
by natumbri
Wed Aug 19, 2020 6:35 am
Forum: ThinkPad R, A, G and Z Series
Topic: Thinkpad R60 (Frankenpad R601) - [SOLVED] SXGA+ problems (Possibly relevant to T60 / T61 too)
Replies: 13
Views: 1178

Re: Thinkpad R60 (Frankenpad R601) - SXGA problems (Possibly relevant to T60 / T61 too)

Thanks a lot for the reference - I've had a good read through the whole thread. Based on what is in that thread, I ran `get-edid | hexdump`: natumbri@nik-r60:~ $ sudo get-edid | hexdump This is read-edid version 3.0.2. Prepare for some fun. Attempting to use i2c interface No EDID on bus 0 No EDID on...
by natumbri
Wed Aug 19, 2020 12:29 am
Forum: ThinkPad R, A, G and Z Series
Topic: Thinkpad R60 (Frankenpad R601) - [SOLVED] SXGA+ problems (Possibly relevant to T60 / T61 too)
Replies: 13
Views: 1178

Re: Thinkpad R60 (Frankenpad R601) - SXGA problems (Possibly relevant to T60 / T61 too)

Thanks for the suggestion! Result: natumbri@nik-r60:~ $ hwinfo --monitor 26: None 00.0: 10002 LCD Monitor [Created at monitor.125] Unique ID: rdCR.MTMyZw7k9e4 Parent ID: _Znp.3gR64TvADaC Hardware Class: monitor Model: "IDT LCD Monitor" Vendor: IDT "IDT" Device: eisa 0x000f Resolution: 1400x1050@60Hz...
by natumbri
Tue Aug 18, 2020 11:42 pm
Forum: ThinkPad R, A, G and Z Series
Topic: Thinkpad R60 (Frankenpad R601) - [SOLVED] SXGA+ problems (Possibly relevant to T60 / T61 too)
Replies: 13
Views: 1178

Thinkpad R60 (Frankenpad R601) - [SOLVED] SXGA+ problems (Possibly relevant to T60 / T61 too)

Hi, Short version: My SXGA+ screen doesn't work properly and although I have come up with a work around, I'd like to fix it properly, if possible. Long version: I have a TP that started life as a 4:3 R60 (9459-AQ9) with a 1024x768 display. Everything worked fine. Naturally, that meant it was time to...

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