Re: tektronix ths720 schematic needed
Thank you, I'll check and give feedback.
ivcho_gd
Member
Last Activity: Today, 01:55 AM
Joined: 02-18-2019
Location: varna
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Re: tektronix ths720 schematic needed
Thank you! I also found it but I need board schematic.Leave a comment:
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tektronix ths720 schematic needed
Hello, I have a problem with ch2 of tektronix ths720 scope.
It suddenly stop working and indicate input.
do you have any suggestions for troubleshooting or schematic to check.
Thank you!... -
Re: fijitsu lifebook e549 bios pasword
It is not working now the disable ocde is:
203c-d001-8336-a215-7bba-5c1dLeave a comment:
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Re: fijitsu lifebook e549 bios pasword
This is not working for "203c-d001.." codes.Leave a comment:
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fijitsu lifebook e549 bios pasword
Hello, is there any solution for removing bios password on this laptop with disable code:
203c-d001-b06e-915a-0a0e-f54a.
Each time when 3 wrong bios passwords are entered the code is different.
Is it possible for someone to generate master bios password or the only way to edit bios dump?
Thanks -
Re: opus bt-c100 not charging after inserting battery in wrong direction
Yesterday changed with IRLM9301 and now working perfect again. ThanksLeave a comment:
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Re: opus bt-c100 not charging after inserting battery in wrong direction
Thank you very much SMDFlea for the link, p-channel mosfet is enough to get it working again.Leave a comment:
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Re: opus bt-c100 not charging after inserting battery in wrong direction
Any suggestions about this abbreviation?Leave a comment:
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opus bt-c100 not charging after inserting battery in wrong direction
Hi, I accidentally put battery in reverse position in this charger and result was some amount of smoke.
After inspecting the board I found a damage transistor. It was shorted and after removing some of the functions of the charger started working again. This element is part of charging circuit and now it is not charging any batteries.
My question is how to determine exact specs of this transistor? It is in body SOP-23-3 and writing on it is "ALSF 12"and 12 is rotated on 90 degrees.
I'm adding also picture of this part of the board.
Thanks... -
Re: New Members - please post your introductions here
Hello everyone, I'm Ivo from Bulgaria.
I'm doing some repairs on laptops, tablet and other consumer electronics like hobby. Specialized in dell latitude and precision and also HP elitebooks. The forum helps me a lot with dealing with some issues.
If someone has problems with some of the models I will be glad to help with my knowledge an database with shematics and bios dumps.Leave a comment:
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