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Zener diode value which is connected at pin no.9 of IC 7632 in samsung DNIeJr tv

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You have to refer it repair manual [schematic diagram] to get more about this detail. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy.
http://electronicshelponline.blogspot.com/

Posted on Feb 10, 2014

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Posted on Jan 02, 2017

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SOURCE: Mitsubishi cs40507 blown zener diode

It should be at the back cover, just where the model number is. If you have the TV open, it may also be found inside, maybe on or around the tuner area.

Posted on Feb 22, 2008

  • 1 Answer

SOURCE: UNKNOWN VALUE OF VOLTAGE ZENER DIODES

6,2 V zener dioda red,red,blue

Posted on Sep 23, 2009

  • 1 Answer

SOURCE: 54cm Goldstar tv Model no: CZ 20A 90Y

ordinary zener diode

Posted on Mar 28, 2010

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1 Answer

WHATIS THE VALUE OF ZENER DIODE IN THE POWER SUPPLY?SAMSUNG TV


If you wish to get some details; check the site linked here. Pull up older posts.
http://electro-medical.blogspot.com/

Aug 23, 2016 | Samsung Televison & Video

1 Answer

WHAT IS THIS PROBLEM R805 RESISTOR 33 Ohm BURNING how this solvation sharp tv?


Vertical output IC shorted. Replace it. Before replacing it, check all the associated components connected to its terminals for failure; especially for any zener diodes for short. It is most possible case. Refer its circuit digram [schematic diagram] for more details.
Contact any service technician.
If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

Aug 02, 2014 | Televison & Video

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

1 Answer

No vertical deflection, only a thin horizontal line.


Hi and welcome to FixYa,

A few ideas you may want to consider/explore;
  • While it is true that capacitors do dry out, the values that you posted (22uF & 32uF) are relatively low for the pump/boost capacitor which is responsible for the "top of the picture was a couple of inches short". Normally this should be around 100uF connected between pin8 & pin 12 of LA7836;
  • agree that the Vertical IC LA7836 is busted hence the single line;
  • in most vertical designs, there would be a diode from pin7 that goes to pin12 that needs looking into for a leak;
  • pin7 is the Vert B+ ~ 24VDC while pin1 is secondary B+ 9 ~ 12 VDC. In some designs to accomplish this, there is a dropping resistor from pin 7 to pin 1 and sometimes a zener diode from pin1 to GND parallel with a filter capacitor;
  • pin11 is the vertical output that goes to the yoke. From the yoke some design uses another capacitor (about 1000uF) before going to the ground through a low resistor (~ 1 ohm);
  • above mentioned parts need to be checked out of ciruit preferable and special attention to possible leaks of the diode when testing in reverse bias mode.
Good luck and thank you for using FixYa.

Jan 30, 2009 | Panasonic CT25G7 25" TV

3 Answers

UNKNOWN VALUE OF VOLTAGE ZENER DIODES


I was not able to find any service or schematic for this model. The colors means that the value is 22.6 volts zener diode with the other blue band indicating where the cathode is.
Could you tell me where or what other components this zener diode is connected to?

Jul 02, 2008 | Televison & Video

1 Answer

Tv shut down


Good day.


Have you cheched on your vertical IC? The zener diode along B+ and try to check zener diodes along the secondary supply form your flyback.


chris

Feb 26, 2008 | Sharp 19L-M100 TV

1 Answer

Mitsubishi cs40507 blown zener diode


It should be at the back cover, just where the model number is. If you have the TV open, it may also be found inside, maybe on or around the tuner area.

Feb 22, 2008 | Televison & Video

1 Answer

Your assistance


The Sony part number for these diodes is 8-719-108-12 and yes they are 9.1 volt zener diodes @ 1 watt. I have the service manual for this set if you need it put can only send a large file like this trough a proggy called pand, so if you go to pando.com and get the proggy and leave youe e-mail addy I will send you a copy of this service manual. Good Luck

Mar 26, 2007 | Sony KV-27S65 27" TV

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