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Log in| Search found 26 matches |
| Author | Message |
|---|---|
 Topic: Max232* FOR FREE :) |
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| rkawakami Replies: 9 Views: 20571 |
 Forum: IBM/Lenovo ThinkPad Password Help Center (EN) Posted: Wed Oct 25, 2006 12:09 am Subject: Max232* FOR FREE :) |
| Interesting! How many samples did you ask for and where do you live? I've gone through the maxim-ic.com web site and did not see any minimum order requirement so it may be possible to order a single ... | |
| Topic: Max232* FOR FREE :) |
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| rkawakami Replies: 9 Views: 20571 |
Forum: IBM/Lenovo ThinkPad Password Help Center (EN) Posted: Wed Oct 18, 2006 1:26 am Subject: Max232* FOR FREE :) |
| Let us know if Maxim/Dallas does send you any free samples. Those samples are generally reserved for companies that forsee a large demand for parts and not something that they will hand out to privat ... | |
| Topic: Electrical problem with Driven Circuit |
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| rkawakami Replies: 6 Views: 15338 |
Forum: IBM/Lenovo ThinkPad Password Help Center (EN) Posted: Sat Sep 09, 2006 9:39 am Subject: Electrical problem with Driven Circuit |
| It appears like the MAX202CPE is equivalent to the MAX232A version. This means that the capacitors should be 0.1uF, not 1.0uF. This is the datasheet I found on the 202CPE:
http://www.chipdocs.com ... |
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| Topic: [Practice] Making it work. |
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| rkawakami Replies: 37 Views: 261711 |
Forum: IBM/Lenovo ThinkPad Password Help Center (EN) Posted: Sun Jul 16, 2006 12:14 pm Subject: [Practice] Making it work. |
| Just wanted to update this thread with an unlock procedure I've performed on a T21 and T23. Both of these laptops have the EEPROM located inside the memory compartment (yay, no disassembly required!) ... | |
| Topic: Wire Connection Question?!? |
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| rkawakami Replies: 1 Views: 8733 |
Forum: IBM/Lenovo ThinkPad Password Help Center (EN) Posted: Tue Jul 04, 2006 8:03 am Subject: Re: Wire Connection Question?!? |
| Wouldn't it be much more easier to connect the 3 wires to the simple interface then turn on the thinkpad hit F1 and THEN connect the interface to the COM1 on your PC?
Yes it would, from a mechanical ... |
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| Topic: SOIC Clip & R40 |
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| rkawakami Replies: 5 Views: 17036 |
Forum: IBM/Lenovo ThinkPad Password Help Center (EN) Posted: Tue Jun 27, 2006 9:39 am Subject: SOIC Clip & R40 |
| Just out of interest has anyone tried reading the EEPROM whilst it is attached to the motherboard using this method?
If you are talking about trying to power the EEPROM up using an external supply ... |
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| Topic: SOIC Clip & R40 |
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| rkawakami Replies: 5 Views: 17036 |
Forum: IBM/Lenovo ThinkPad Password Help Center (EN) Posted: Mon Jun 26, 2006 12:05 am Subject: Re: SOIC Clip & R40 |
| I beleive that the EEPROM on the R40 (P4 2Ghz later type) is a 8 pin device so I guess that part number
This looks like it would work by reading all of the package dimensions from the Atmel datash ... |
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| Topic: T30 - building Breadboard and DB9 interface |
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| rkawakami Replies: 7 Views: 22516 |
Forum: IBM/Lenovo ThinkPad Password Help Center (EN) Posted: Thu Jun 22, 2006 8:53 pm Subject: T30 - building Breadboard and DB9 interface |
| (Sorry for the delay... I could not post this as there was a problem connecting to the site.)
Yes! You appear to have the battery polarity REVERSED! Do not apply power until you fix the circuit o ... |
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| Topic: T30 - building Breadboard and DB9 interface |
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| rkawakami Replies: 7 Views: 22516 |
Forum: IBM/Lenovo ThinkPad Password Help Center (EN) Posted: Wed Jun 21, 2006 8:26 pm Subject: T30 - building Breadboard and DB9 interface |
| The positive and negative connection to the breadboard are located all the way on the top and bottom horizontal inputs?.
If you are referring to my breadboard, then yes, they are. The breadboard t ... |
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| Topic: T30 - building Breadboard and DB9 interface |
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| rkawakami Replies: 7 Views: 22516 |
Forum: IBM/Lenovo ThinkPad Password Help Center (EN) Posted: Wed Jun 21, 2006 2:33 am Subject: T30 - building Breadboard and DB9 interface |
| Test clips which contact all the pins are made for the TSOP (thin, small outline package) devices like the 24RF08 EEPROM, however they generally cost from $75-100 on up. Are they worth it for a "one- ... | |
| Topic: T30 - building Breadboard and DB9 interface |
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| rkawakami Replies: 7 Views: 22516 |
Forum: IBM/Lenovo ThinkPad Password Help Center (EN) Posted: Tue Jun 20, 2006 5:14 am Subject: T30 - building Breadboard and DB9 interface |
| If you have read the entire thread at:
http://www.allservice.ro/forum/viewtopic.php?t=123 then you should have seen that there are some errors in wolfman's photos of his MAX 232 driven circuit w ... |
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| Topic: Unlocking passwords |
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| rkawakami Replies: 5 Views: 14977 |
Forum: IBM/Lenovo ThinkPad Password Help Center (EN) Posted: Sat May 27, 2006 6:37 pm Subject: Unlocking passwords |
| Ray,
thanks for the info...I'll have to try that next time I find a likely candidate for sale! See, there I go again killing my own chances at getting some cheap systems off of eBay! 
Ray |
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| Topic: Unlocking passwords |
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| rkawakami Replies: 5 Views: 14977 |
Forum: IBM/Lenovo ThinkPad Password Help Center (EN) Posted: Sat May 27, 2006 2:13 am Subject: Re: Unlocking passwords |
| The Eprom legs are a bit tricky to solder to (I am reasonably skilled). Take your time, and don't forget the ESD precautions.
I unlocked a 600X on the first try, and saved a hefty fee to the manufact ... |
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| Topic: [Practice] Making it work. |
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| rkawakami Replies: 37 Views: 261711 |
Forum: IBM/Lenovo ThinkPad Password Help Center (EN) Posted: Mon May 15, 2006 9:06 pm Subject: Pictures of driven interface breadboard |
| In response to a couple of questions posed by "noyp", I have put up another web site describing in detail how I laid out my driven interface breadboard. Hopefully it contains enough information on the ... | |
| Topic: interface question |
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| rkawakami Replies: 5 Views: 13516 |
Forum: IBM/Lenovo ThinkPad Password Help Center (EN) Posted: Mon May 15, 2006 8:51 pm Subject: Pictures of driven interface breadboard |
| In response to a couple of questions posed by "noyp", I have put up another web site describing in detail how I laid out my driven interface breadboard. Hopefully it contains enough information on the ... | |
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