LM Sanyo Semicon Device datasheet pdf data sheet FREE Datasheets ( data sheet) search for integrated circuits (ic), semiconductors and other electronic . LM min typ nax unit. *. mA. mA. mA. MA. mA. *. * Electrical Characteristics at Ta= 25°C,Vss=0V,VOD=-9 to – 15V. Output ‘H’ Level Current. ALARM. LM datasheet, LM pdf, LM data sheet, datasheet, data sheet, pdf, SANYO, Dual – Alarm Digital Clock.
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For one alarm output, DC output signal is provided. It appears that the black ribbon cable is 4 wires and there datasheer 5 points, one of which is your red trace line from “a”.
Bender New Member May 26, Each alarm has its own alarm output signal. The chances are, there’s a jumber or something on the other side of the board, you need to disconnect from A it and reconnect it to C.
LM Sanyo Semiconductor Corporation, LM Datasheet
Bender New Member May 28, It would be great if I could put it to some use. Valid only when using the alarm functionSupply Voltage Detection Circuit “. The data sheet seems to have an error datashee it says 60Hz pin left open is fatasheet down to Vdd. When I tested the Hz going through the clock radio with a multimeter is only comes up with 50Hz Point C on the below image. I have a feeling if I can get the specs for this guy I will be able to move forward.
Thanks for the heads up! You might not need to disconnect anything, try linking pins B and C and it might work.
Hero Banned May 28, B is connected to many other points. For instance all of north america is 60 but south america has both 50 and 60 Hz dependent on country and most of the rest of the world is 50hz. Welcome to our site! Thread starter Bender Start date May 26, Therefore, a requirement when using.
Sadly, you may be out of luck.
I datasheer a datasheet for a TMS I suspect that there may be more missing than one might think if the distributors knew that the clock would only be sold in a area of 60 Hz. Here is the pinouts.
Or tell me what I need to buy to make it run at 60Hz? The has 28 pins. State Diagram for the Alarm Controller 26off if the alarm has been triggered by either a timed or general untimed circuit. May just be crazy enough to try, I did not check the pincount though. If your notations are correct. Is it possible you miscounted the pins? Here is the back of the PCB, sorry for the low res image, I took it from my mobile phone.
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Or that little board and case were used ’cause they fatasheet a bazillion of them and the availability of different Hz is not possible, only 60 Hz. I wouldn’t worry about it smoking. I’m assuming now all I need now is short the power to pin 25 or 26 and datashheet it out.
As these seem to be the most common ICs it woudn’t surprise me if the clock uses eithe one or the other. On the back of the clock datasheer there is a place where it looks like a switch should be to allow me to change between 50 and 60 Hz. IIRC, there was 2 version’s of the chip. Articles Top Articles Search resources. It would be nice to see the other side of that little board.