I have tried few SMD3.57 MS-II Board, and replaced about 5 max232 Chips already.
And tody I have to replace another more, since I found that it is failed in Loopback check again.
I am just wondering if there is any improved chip which could be put for repalcing the MAX232.
Thanks in advance.
vulnerable MAX232 chip, any possible improvement?
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Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0).
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
Re: vulnerable MAX232 chip, any possible improvement?
The max232 is a very robust chip. I once accidently powered it with 12v instead of 5v without breaking it. Seems after five failures that something else is zapping your chip. Maybe a bad or no ground at the serial port?