Date: Mon, 14 Mar 2005 00:00:16 +1100 From: Raymond <[EMAIL PROTECTED]> Subject: Re: [LIB] System troubleshooting - Was: Is it okay to reload current BIOS version?
At 06:00 PM 11/03/2005 -0800, you wrote:
Date: Fri, 11 Mar 2005 18:00:20 -0800 (PST)
From: Matt Hanson <[EMAIL PROTECTED]>
Subject: Re: [LIB] System troubleshooting - Was: Is it okay to reload current BIOS version?
--- [EMAIL PROTECTED] wrote: > > -----Original Message----- > From: Matt Hanson [mailto:[EMAIL PROTECTED] > > .... Appendix F shows the wiring diagram for making the "Parallel Port > Wraparound Connector"... I guess you just wire the numbered pins > together.
> Matt, you are correct - just wire the numbered pins together. The pins > on the left hand sides are the Port pins (PD 0-8) and the pins on the > right are the signal names. So, what you are doing is sending those > signals on the right to the ports on the left.
Okay... But the problem is that I see nothing in the manual about using it exclusively to troubleshoot the motherboard. Seems like you 1st need the 'Printer port LED' to begin the process. And there's no diagram for building one in the manual.
Toshiba have a standard parallel port LED thingo that'd work in any Toshiba laptop. If I'm not mistaken (and I must admit I didn't pay an awful lot of attention - we had a proper dongle where I used to work), this dongle simply brings out each of the 8 printer port data lines (pins 2 through 9) to 8 LEDs (then through dropping resistors to ground). Page 51 of the manual (the real page 51, not the mucked up internal page numbers) has a table with all the codes on it.
Now I doubt you'd have the suitable dongle but that's OK ... as I recall, that dongle didn't do anything else to signal the motherboard (you need to hold down space to tell the motherboard you have the dongle connected so it wouldn't make sense if it did). If that's the case, simply measure the voltages between ground and pins 2 through 9 and read it off that way (it's slow but it should work).
Having said that, I assume you've also checked the blink codes on the power light (if any)?
Good luck!
- Raymond
---
/~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\
| | "Does fuzzy logic tickle?" |
| ___ | "My HDD has no reverse. How do I backup?" |
| /__/ +-------------------------------------------|
| / \ a y b o t | [EMAIL PROTECTED] |
| | Need help? Visit #Windows98 on DALNet! |
| ICQ: 31756092 | Libretto IRC channel #Libretto on DALNet! |
\~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~/
