Porterito Replace the 12 volt bulb with led
The porterito. In continuous (for sounds to be heard) it works with 9 volts.
The bulb worked with alternating at 12 volts, just like the cicada (push button)
Yesterday the little porter was speechless. The bell rings perfectly. I have to measure the 9 volts and check the traffic and the diode. I imagine you know how to measure these components with the tester.
I have not had time to review it.
So for what you say you would have to connect it to the led with the 9 voltDC.
I don't know if the measure of resistance is fine. Does the led have polarity? The seller told me that the longest wire goes to the positive (?)
regards
It is very possible that at the time of installing the doorman I did not look at the issue of the current, I connected the cables according to a diagram.It was in 1985. If it has lasted and with only the change of a speaker! He has been working for about 35 years. At that time I fixed black and white televisions.
A question to Ricardo Ab .... The LED has no color but can be red or green. And how do I determine polarity?
At the source there are two transformers, the largest delivering 12 volts for the cicada.
The other is smaller and receives a diode from the big one. There are two electrolytic 1000uf
The long leg is connected to the positive, if the lamp was working with 12vAC you have to place a diode, all that you determine with a multimeter or tester. The rectifier diode and 1000uf capacitors are for rectifying the current, the smallest is a "shock coil" winding. You have to see the lamp holder from where it takes the current and it is important that you measure what voltage there is, it is not the same 9v as 12v, the resistances that I passed you are for 9v (according to your sayings) For 12v green led 470 ohms
Today, Sunday, I will lower the source on the inner wall near the ceiling, to make a diagram of the connections and measure the voltage.
Does the current state of silence of the goalkeeper have nothing to do with the burning of the light bulb? A distant sound of almost imperceptible alternation is heard.
I have some balance problems in the "heights", with almost 80 years and I have trouble working with the welder up there. Today I changed the old electrolytics for new ones, but the zero sound. Anything I comment.
Thanks and regards.
Actually I did not dare to lower the source of the doorman, but I did measure the voltaj2 continuously with a digital tester between the negative and the electrolytic output and it does not mark any output voltage for the Porterito circuit.
There is only 12 volt AC voltage in another sector, for the rind.
regards
Maybe you have a short line. You tested voltage by disconnecting the lines, even if it is one (positive or negative) If you continue without continuous something is cut, it may be the circuit, it may be the shock coil (it would be weird, but it may be) That would be one of the reasons that does not turn on the lamp and you have no audio. regards
Today I disassembled all the part that faces the street, I changed the speaker, I welded well the ground wire that comes from the source and I verified that there is no continuity between the 3 terminals that are in the area of the old light bulb. That is to say, they are all connected but the only one that has function at this time is the mass, until it changes to the LED. The light bulb is burned.
I do not get here the led holder.
regards
Measuring the terminals of the source between negative and positive (electrolytic) gives me a continuous voltage of 16 volts.
Of course there is no sound
Hi. If you have 16v without load, it would be normal, do those 16v come to the front? I do not understand "of course there is no sound" If the tension is good and the cables are not cut, it should work. Do you have an amplifier? The mass do you mean alternate on the sheet? Positive and negative come to the front? Actually on the front you should have: Positive (common speaker and microphone) alternate to the sheet, speaker line and microphone line, the Negative to the midpoint of the phone. regards
I measured again and this time my old Univolt digital DT 810 multimeter (JAPAN) measures inaccurately, I may have the 9 volt battery somewhat discharged, although when I measure a common battery it records 1,598 volts without charge.
The analog tester I have measures only continuity so I can't measure the battery or the doorman circuit.
Now I will buy one and I will also measure on the outside.
As for sound when I pick up any of the two internal telephones, nothing is heard, nor the intense traffic of the block.
It has no amplifier.The positive goes to the midpoint of the microphone
Every time I get more complicated for not understanding the subject well
In truth, if I had the circuit maybe I would notice some details.
The voltage of +9 volt was always from the source to the center point of the microphone (red wire), then goes to one of the speaker points and exits through the other contact of the speaker (blue wire) to point 5 of the internals.
The negative of the source goes to the door plate, so it is that if I disconnect it and press the button I close the circuit of the buzzer and it rings on two internal telephones.
The issue is the two wires that apparently fed the foquito.
It is complicated because you do not explain well input. Now you comment that you have 2 internal. I ask you: Do these phones communicate with each other without the word coming out to the street? In that case the source would be an automatic intern and the connections (being old) would be different. Either it has a relay or a button for internal communication. In any case, if you do not listen to the street, you should check the line of the street microphone (which is not cut in its path) You must do the same with the line of the street speaker (it must reach the microphone of the telephone). The alternate >>>>
>>> (in this case) you can use it as a reference to know if the lines arrive correctly. You disconnect the cable from the street microphone (not the midpoint) bypassing with alternating and you notice if that "alternating line" arrives on the phone the colors should match. If it is well do the same with the line of the street microphone (it has to reach the receiver of the phone) if it does not arrive; It is cut in its path. Upload a picture of the front and its connections including the "little light" Greetings
In my modest understanding it is assumed that if there is a communication from the street, for example, it is with another internal telephone. Well I forgot to quote a second team behind, in the garage. but I want to comment that when I installed the equipment I connected a free push button with the cicada of each telephone to warn that it is attended, either from the street or living room.
As I installed everything in parallel, the connections are the same, so I answer your question, yes, you hear what is said between two inmates.
The truth is that I did not understand some things you cited regarding the front part.
I follow the comment here. In that paragraph I lost myself completely to understand the operation of the equipment,
When you say: "Actually on the front you should have: Positive (common speaker and microphone) alternate to the sheet, speaker line and microphone line, the negative to the midpoint of the phone). The alternate"
If you can explain to me "in Creole" how the subject is, I may understand it.
I even have the doubt of where to measure continuously. I think of the two wires that carry the current rtectified by the diode.
regards
Okay, we continue. It is a common equipment without internal communication, this equipment can have 1, 2, 3, 4 and maybe 5 phones connected in parallel (but I don't think why the buzzers would not ring, but that is another issue). The front can be connected in several ways, but always, you should always have at least two different currents (alternating and positive - alternating and negative - negative and positive). For the audio it has to be rectified current (positive or negative) and for the bells and the electric lock alternating current (normally in modern equipment there are buzzers and >>
>> electric latches that work with continuous; it is not your case) To look for a short-circuited or cut cable you have to search with a reference current and opposite to the one you are looking for) Generally, any short or cut line (not the same) of audio or Be it any microphone or receiver line. Is it understood there? Like any circuit it works when these currents come together and begin to circulate. This is fulfilled by the telephone or the tefephones when picking up and attending. So if the midpoint of the phone (which feeds both capsules) is >>
>> negative on the street front you must have positive as a midpoint (feeds microphone and speaker) or vice versa. If you told me more exactly where you got lost ... maybe I can help you.
The electric gatekeepers are repaired with a simple test micro, with a tester or multimeter it will be complicated because it is a very sensitive measuring device, now ... direct current you have in the audio part and alternating current in the part Doorbells and openers. I insist with a picture of the front with its connections will be easier to guide you. regards
Good. Now I am understanding you more. In any case, I would tell you that we are going to make a parenthesis until I am encouraged to disassemble the source and its connections, download it and in my workshop determine what comes out for the front and what wiring goes to the circuit of the other phones. A spaghetti comes out for the source with wires, those are identified and the other spaghetti contains the rest of the wiring inside the house.
I have an HP printer, but the car plate has burned and does not print in black and white. Because I could scan a drawing with the front
I'm still here. The car plate of my HP 2540 printer is not available (it is of Brazilian origin)
I will try to scan a photo in a cyber, if I don't get the spare.
Another detail: I had told you about the 16 volt voltage with no DC load. I tried again and it is not in the axacto voltage. The same thing happens later.
At least the chicharra is in the three positions of the line. You have to open the street door but first look out the window.
Greetings and thanks for the patience.
Hi Coronda, no problem. Always follow this thread and any comments you make I will receive a notification. I only ask for your patience because our schedules do not seem to combine hahahaha. Ah !!! With any cell phone you can take a picture. From the source they have to leave (minimum three wires) positive__ negative___ and alternate. Enter + and - 12v or 9v or close to those values. Between + and alternate can give up to 24v Then we will have to look for the problem. Regards....
Well, it's about 4pm and I finished recording a partial series of approximately 5000 jazz songs from a Detroit FM (USA). I listen to the music streaming on the computer and at the same time the doorman.
I thought the problem was in what I canceled out of focus, a free orange wire could not be, that era of focus. I chose to connect the yellow, to the plate that closed the circuit at terminal 6 of the source, that is to say in the negative DC. And the doorman is 10.
Greetings and thank you very much. It's the solution.
I still need to connect the LED so that at night the visitor (I am a locksmith) has light on the doorman initially to know that he is attended, after calling Do I make another post or continue tomorrow with this (tomorrow I will not be)
I await your comments.
Greetings.
Hello, I would close this with the solution and whenever you want, open another one with the LED. Because it will depend on the tension you have and what kind to solve it without burning. regards
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