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Hi all.

Is it possible to downgrade D.B (Database) Version of EST3 Panel C.P.U?
I have a EST3 panel and 3-SDU Ver5.20, when i request version of C.P.U Panel, i Found that CPU D.B version of 3-SDU was 1.00 but CPU D.B of EST3 Panel was 5.00.
Is this mismatch important?
How can i solve this problem?

Dear ENG. Leo. Thanks to your replay, I replaced rs232 card with a new card and I solve problems related to communication with the my EST3 panel. But a new problem has occurred. After downloading the data on the panel, all the devices goes to fault!!! when i use detail button to these fault, panel s...

deare Leo thanks for replay yes i try it more than 10 times!! but bad checksum still runing!!!what do you mean using RS232 card for loading cpu? is it possible that RS232 card or cpu card has been damaged? i have taken a few picture of panel and have attached them in this form. please help me what c...

Dear all I have problem with my est3 panel as described below Please help!!! A. System components. We have an EST3 fire alarm control panel with 7LRM as below: 1- One "3-CPU3" (App Code version: 3.7 and Boot Sector version: 3.7) 2- Two "SSDC1" (App Code version: 3.6 and Boot Stra...

Hi all I have problem with my est3 panel: when i want to download data on cpu (Code and Boot loader) 3-sdu show badcheksum error.when i tried to do it again panel shows cpufaild!!and now when i want to download code or database or booloader same things happend. any idea or solutions? i use 3sdu ver5...

hi all! I have a qs1 panel that when goes to trouble the buzzer of panel didn't work(same as push the panel silence button)! I have another problem with this panel too!after above problem was began i couldn't configured panel with RS232 interface cable and qs-cu configuration utility!I checked the i...

hi all! One of signature series detector SIGA-PHS goes to false alarm and when this sensor goes to alarm control panel (Q.S 4) shows the alarm status but any horn strobe doesn't work !!! i was check my program and there is no problem so I was restart the panel and test the sensor with smoke . Detect...

Special thanks dear gettech.I did it and every things going to right now.

hi all i have some problem with lcd display of qs4 fire alarm panel! The light of lcd display is very low and i cant not see any thing on !in other word back light of display lcd is very high and there is imposible to see any thing! i was checked the input voltage and its ok , also check the voltage...

martin there is some thing that i think the small card was not damage , when i program the sddc1 card in sdu software i dont active the loop mapping in data card two and so there is a fault on lcd that mappin disable in data card two , as i active the mapping in data card two there no trouble on lcd...