By checking the motherboard,i found that RS232-C should be connected to J2.I haven't figured it out yet,J2(8000), (A000), (B000)74LS154N output,modern general RS232 three-wire control communication,But it has 7 wires or more
Because I don’t know the U9 model，74LS154N is controlled by U9,Progress blocked,If anyone knows, please tell me the model,I will continue to travel

J1 is only used for reading or writing, only as a switch,Control EPROM writing program or prohibit writing.

GPIB interface,I guess there should be a small board,it connects to J3、J4、J5、J6,input Output,control the machine remotely through the program

I check the pressure module and the flow sensor module,found that the sensor could not find the model,If you know please let me know.I am worried about damage to the equipment,I will back up the pressure and flow sensor test data,Support future damage。scilicet。I will save the pressure value or voltage value corresponding to the flow value.
If you have better suggestions please let me know
[Linked Image]
[Linked Image]

Clear picturehttps://ftp.bmp.ovh/imgs/2021/03/0565ee3aa1699c17.jpg
https://ftp.bmp.ovh/imgs/2021/03/233585f3aea6e578.jpg

Last edited by daisizhou; 22/03/21 2:08 AM.
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