Toshiba Satellite M300 PSMDCL-05Y00D ( MB : DATE1MMB8E0 )

[degutji]

Hi All,

Do you have a bios file for Toshiba Satellite PSMDCL-05Y00D ( MB : DATE1MMB8E0 )? I've looking around with no luck till now, always get timeout error when download from toshiba web http://toshiba-asia.com/sg/support/d.../details/24807, my situation now is won't display to LCD ( LCD OK I've tested ) but work with ext monitor, measure pin 15,2,4 on LCD socket only get 0v , suspect is EC , Northbridge or VGA Card but before that i want to update bios first ( my opinion ). Any ideas friends....?

Best Regards

[degutji]

Re: Toshiba Satellite M300 PSMDCL-05Y00D ( MB : DATE1MMB8E0 )

Stage 1 Clear

[degutji]

Re: Toshiba Satellite M300 PSMDCL-05Y00D ( MB : DATE1MMB8E0 )

31 viewer with no advise

[spidey]

Re: Toshiba Satellite M300 PSMDCL-05Y00D ( MB : DATE1MMB8E0 )

if you have screen with ext. so, that means your bios is working. You should consider checking NB. do a light reflow first. if works reball or change ic with a new one.

[degutji]

Re: Toshiba Satellite M300 PSMDCL-05Y00D ( MB : DATE1MMB8E0 )

if you have screen with ext. so, that means your bios is working. You should consider checking NB. do a light reflow first. if works reball or change ic with a new one.

Thx before spidey, yes you right. I've updated bios with the latest one but still same, before I go to NB chip. Is there possible EC chip problem ? there is no LCDVCC & DISPON signal on LCD SOCKET (CN5). I've check on pin# 6 (EC_FPBACK#) Hall sensor & Backlight with no output, who is controlled that signal ? NB or EC ? Looking forward for your advise

[spidey]

Re: Toshiba Satellite M300 PSMDCL-05Y00D ( MB : DATE1MMB8E0 )

let me check from the schematic. i'll write back tomorrow, now i'm at home and not allowed to work(my wife!).

[degutji]

Re: Toshiba Satellite M300 PSMDCL-05Y00D ( MB : DATE1MMB8E0 )

It's okay, i'll be waiting. Thx

[spidey]

Re: Toshiba Satellite M300 PSMDCL-05Y00D ( MB : DATE1MMB8E0 )

check the signals ; LCDVCC, VIN,DISPON,LCD_VADJ on CN5.

EC_FPBACK# signal is coming from EC.

if you dont have some of the signals, you can manually add them. get +3v from LCD_VADJ and connect it to DISPON also get +3v for LCDVCC from another supply.
it should work.

[degutji]

Re: Toshiba Satellite M300 PSMDCL-05Y00D ( MB : DATE1MMB8E0 )

check the signals ; LCDVCC, VIN,DISPON,LCD_VADJ on CN5.

EC_FPBACK# signal is coming from EC.

if you dont have some of the signals, you can manually add them. get +3v from LCD_VADJ and connect it to DISPON also get +3v for LCDVCC from another supply.
it should work.

Only LCDVCC & DISPON missing signal on my CN5, ok I'll do it tomorrow as you say and I'll let you know the result.

Regards

[degutji]

Re: Toshiba Satellite M300 PSMDCL-05Y00D ( MB : DATE1MMB8E0 )

After trying suggestions from spidey, with result just Backlight appears but no image, make me confuse, with curiosity before deciding to reballing, I try to check more thoroughly on flex, and guess what... found 4 wire connection is broken ? From there I've learn to more thoroughly when check Laptop that come from other technician , first come the laptop owner say this laptop been repair by other computer shop with condition no display, dismantle and found flux at everywhere. I guessing this laptop have a lot of problem , whereas it's only flex problem. spend a time for few days , I made mistake from beginning that only check flex from visual, not measure it the wire one by one. Thank's spidey, for your suggestions that solved this case. Great forum to learn

PS: Problem Solved

[spidey]

Re: Toshiba Satellite M300 PSMDCL-05Y00D ( MB : DATE1MMB8E0 )

i am glad you made it.

[crusaderogia]

Re: Toshiba Satellite M300 PSMDCL-05Y00D ( MB : DATE1MMB8E0 )

Hello, I recently have serviced a Toshiba Satellite M300 PSMDCL. The problem is it will automatically turn on when I shut down. Also, It won't turn on battery( it seems totally dead). But if I charging it and has battery , it will turn on. And without battery, just charger it won't turn on although the charging light indicator on. So, anyone has idea?

I would like to flash bios first. But I can't download from official website. It seems error.

Thanks,
Best Regards

[degutji]

Re: Toshiba Satellite M300 PSMDCL-05Y00D ( MB : DATE1MMB8E0 )

Hello, I recently have serviced a Toshiba Satellite M300 PSMDCL. The problem is it will automatically turn on when I shut down. Also, It won't turn on battery( it seems totally dead). But if I charging it and has battery , it will turn on. And without battery, just charger it won't turn on although the charging light indicator on. So, anyone has idea?

I would like to flash bios first. But I can't download from official website. It seems error.

Thanks,
Best Regards

Try this bro..

[crusaderogia]

Re: Toshiba Satellite M300 PSMDCL-05Y00D ( MB : DATE1MMB8E0 )

Okay. I will try it later. I will post the result. Thanks for the firmware.

Thanks,
Best Regards

[crusaderogia]

Re: Toshiba Satellite M300 PSMDCL-05Y00D ( MB : DATE1MMB8E0 )

Hi, degutji,
are you have a bios update in windows platform?

because you give me is .rom file. And its laptop is not totally dead. Or can you teach me how to flash using .rom file?

I search the google. It use the Fn+B key. But, I failed it.

Thanks,
Best regards

[crusaderogia]

Re: Toshiba Satellite M300 PSMDCL-05Y00D ( MB : DATE1MMB8E0 )

Okay. I have flashed the bios. But it seems the problem is not on the bios.
As I mention it. When i plugged in the charger, it will auto turn on, and I can't shut it down because it will auto turn on. And when I plugged in charger without battery, it won't turn on. Is there any solution?

Thanks,
Best Regards

[karem adil]

Re: Toshiba Satellite M300 PSMDCL-05Y00D ( MB : DATE1MMB8E0 )

thank you