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The diodo zener is damaged - Uniden Cordless Phone

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I'm useing a diodo to get my codes I have a new emc I got it crank up and ran geeaf now it Justs turns over and I can't get no coda because when you turn on the ignition the diodo stays on


Some computers need to be programmed by the dealer, only give you one start to get it there, then no more starts. Might need a mobile programming tech or tow to dealer.

Oct 27, 2015 | Cars & Trucks

1 Answer

What is the zener volt


I'm not sure what your question is. A zener diode is a voltage regulator of sorts. The zener voltage is the avalanche voltage...the voltage that the zener diode will maintain when it's connected in series with an impedance, usually a resistor, IF the voltage across the zener diode and the impedance, in series, is greater than the avalanche voltage (zener voltage), and the polarity of the voltage across the zener diode is thus: positive cathode, negative anode (i.e., reverse bias). The excess voltage (the margin) appears across the impedance. Zeners are often used as voltage reference diodes in regulated power supplies. Does this answer your question?

Apr 16, 2013 | Computers & Internet

1 Answer

Dear Sir, I'm Bangladeshi Tv Techanician, Sony tv


Hello

Before replacing the STR, have you checked all the components related to it? When STR burns out some of the nearby components, such as zener diodes and other resistors will also get damaged. You just replace the components, especially, zener diodes, in case it does not show any fault, replace it. Connect a 100W filament type bulb in seris with the power supply, and switch on the set. This will reduce the power concumton at the begining, and we can check its heat effect also, after all are ok we can connect directly. Check the smoothing capacitor at the secondary 130VDC. Replace it also. If you need furthermore assistance, feel free to contact me through Fixya. I'm an Indian, residing at Trivandrum, the capital city of Kerala State.

Dec 11, 2010 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

NECESITO PORFAVOR EL MANUAL DE USO DEL MODELO, NN-ST657W


Si sabía el problema que podría asistirle mejor así que debo conjeturar: Ninguìn calor: maìn magnetrón, fusible soplado, maìn diodo del condensador, abierto o puesto en cortocircuito. Si sopla el triturador es probablemente un maìn magnetrón. si simplemente ninguìn calor es probaby el diodo y el condensador.

May 17, 2009 | Panasonic NN-S954WF Microwave Oven

1 Answer

Burnt Zener diode... Voltage spec??


On the cathode of the zener diode look for a filter cap and check its value the voltage of the zener should be less than the working voltage of the zener. Basicly its likely being used as a shunt regulator as protection and regulation of the voltage. When the zener hits a certain threshold it will breakdown and start conducting to ground until the supply regulates and then it will recover. If the filter cap for that voltage rail was 25V I would guess that the zener would probably be regulating between 12 and 20 volts. I'd pick a 15V Zener its probably +- %10 on the original and any system should be able to take a %10 tolerance as a general design rule.

May 07, 2009 | Emerson Televison & Video

4 Answers

Ziener diode


Yes, Zener diodes can work both on forward and reverse biasing. The primary difference between a zener diode and the ordinary junction diode is it is designed specifically to operate with a reverse bias voltage that is high enough to cause the the device to breakdown and conduct a high reverse current. Hope this answers your question and provides you with some help. If you need further assistance please let me know.

If you do not mind, would you please rate my help. I would very much appreciate it. Thanks

Dec 08, 2008 | HP Pavilion dv6000z Notebook

1 Answer

Repairing Grundig Radio receiver Satellit 3400


GRUNDIG SATELLIT ST 1400 SL

Diodo Zener ST601 Volt ?? (SU ALIMENTAZIONE)

HELP Simon

Feb 27, 2008 | Grundig Satellit 800 AM/FM/SW Radio

1 Answer

Noggin


Cual es el numero de chassis?
Me parece que la r414 esta conectada al yugo y su valor es de 0.18 ohmios y 2 watt y el dz402 es un zener de 5.6 voltios.
Si la resistencia se esta quemando es posible que hay un corto circuito en el yugo.

Jan 31, 2008 | Televison & Video

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