Question about Hitachi 53FDX20B 53" Rear Projection Television

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Red Halo Is this the board or the huge transistor looking components stk392-110 Where can I buy these and what are the called in electronics terms?

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Yes those are the convergence ICs or convergence amps. i bet you can find them by just putting the info into google.

Posted on Apr 30, 2008

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What is power supply


Fault with main board. Damaged component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ . In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary

Sep 08, 2014 | Televison & Video

2 Answers

Troubleshooting for standard sansui tv


Download the service manual to your TV from internet. It will have all details about its repair.

Aug 12, 2012 | Sansui Televison & Video

1 Answer

Why is my sumsung tv model CS21B501HL take too long to show pictures when switch on?


after 4 or 5 yrs EHT ( transformer that supplies voltage to CRT TUBE - TV TUBE ) becomes weak - then 1 of the indication is that it takes few seconds time for picture to appear ( after few days it takes few hrs & then stops completely).............. .......so solution is EHT ( also called as flyback transformer ) should be replaced....... {{ few details about EHT---- its size will be around 3inch X 2inch X 2inch ---it will have 2 or 3 knobs to adjust focus , brightness ------ at bottom around 10 pins will be there ------- from EHT 1 thick red colour cable goes to CRT TUBE --------- on EHT its part number will be there }} -------- so if user is a technical person having idea about components ( resistors, transistors, diodes, etc ) , having tools like multimeter ( to check components) , soldering iron, soldering lead, flux, desoldering wig ( for removing components), etc also little experience in servicing field( compulsory) ----------------- then user can remove EHT from main board ---- take to electronic shop ----- buy same type EHT --------- fix to mainboard ( knobs on EHT should be adjusted according to picture --- after switching TV --- this adjustment is very important ) ----------iam from bangalore ........since it is very risky job i suggest to contact TV service engineer ------- because they are highly experienced & can fix this component very easily. ------------ [[ sometimes along with EHT another component called transistor ( big in size - situated close to EHT - it will have 3pins - its size will be 1inch X 1/2 inch X 1/2 cm --approximately ---- black in colour ----- fixed to aluminium metal ) --- will also gets deffective --- so this component also should be checked ]] ---- in your case this transistor is good ... because when this component gets deffective then TV won't get '' ON '' .............so in your case only EHT should be replaced.........100% it works normally .....GUARANTEE....... vishnuswamy_4.jpg

Aug 02, 2011 | Samsung Televison & Video

1 Answer

My Horizontal transistor is not working what should i do?


EHT ( also called as flyback transformer ) should be replaced....... {{ few details about EHT---- its size will be around 3inch X 2inch X 2inch ---it will have 2 or 3 knobs to adjust focus , brightness ------ at bottom around 10 pins will be there ------- from EHT 1 thick red colour cable goes to CRT TUBE --------- on EHT its part number will be there }} -------- so if user is a technical person having idea about components ( resistors, transistors, diodes, etc ) , having tools like multimeter ( to check components) , soldering iron, soldering lead, flux, desoldering wig ( for removing components), etc also little experience in servicing field( compulsory) ----------------- then user can remove EHT from main board ---- take to electronic shop ----- buy same type EHT --------- fix to mainboard ( knobs on EHT should be adjusted according to picture --- after switching TV --- this adjustment is very important ) ----------iam from bangalore (09986222774, sathyavijayasarathibabu@ymail.com) ----- here EHT's price will be around Rs 250 ( US $ 6 ) & for my customers (in bangalore) i will take another Rs 500 (US $ 11) as service charge......i don't have any idea about EHT ' s price & service charge in your place.........since it is very risky job i suggest to contact TV service engineer ------- because they are highly experienced & can fix this component very easily...............YOU HAVE TO REPLACE HORIZONTAL TRANSISTOR ALSO

Apr 24, 2011 | Philips 28PW6506 28" TV

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When I plug in the power cable or whatever it's called (i'm not very smart or know much about these tv's) the screen does'nt seem to turn on. It remains black, just like it looks unplugged. The only thing...


Hi,
Your TV set is in protect mode that why you can see red light .To protect further damage of some component parts.There is something internal problem inside maybe there is a shorted or leak capacitor in power supply section. Just go to electronic repair shop near to your place maybe this is cost you more or less $40 or if you are a electronic savvy you can do it to yourself. Just open the unit and look for power supply board,first thing to do is to re solder all component parts leg on that board only, if finish soldering, Turn on the unit, if still not working then check for shorted or open parts like resistor,diode and transistor,if all okay and still not working then replaced all capacitor,I'm sure its okay. Feel free to ask whatever the result.

Regards:
votit

Jan 29, 2011 | Coby TFTV1212 12 in. LCD TV

1 Answer

I have Hitachi 43" hd rear projection tv - too much red


It's probably either a bad red CRT (the red projection tube) or a shorted (or open) driver transistor on the red CRT driver board. If it's the latter case (bad transistor), it can be fixed. If it's the picture tube, well, it's probably time to go shopping for a new TV.
Do you need more information? Do you want to fix it yourself? Do you have electronics knowledge and experience? If not, call a qualified electronic technician (TV repairman), and he can tell you if it's the picture tube or not.

IF (and only if) you are a competant electronic technician, CAREFULLY check and compare the voltage on the collector of the driver transistor on the 3 CRT boards. (The driver transistor is the large one, possibly connected to a heat sink.) The voltages shoud be somewhere around 140 to 160 volts. If the red one is significantly different from the green and blue ones, then it's probably the transistor. Unplug the set (and wait a bit), and check the transistor with a diode or transistor checker. If it checks bad, then you found a bad transistor. Go to NTE Electronic's website to find a replacement. If it checks OK, then you're probably looking at bad (shorted) red CRT.

Dec 12, 2009 | Hitachi 43FDX01B TV

1 Answer

Color problem


Hi, it is more likely from an open green and/or blue picture tube's electron gun transistor driver.
If you have an experience on electronics / or use of solder gun, you can just open your monitor and look for the electronic board at the back of the picture tube. Take a look in all transistor ( components with three legs) and solder / check if their legs are not fully soldered to the board. Note: just be careful on the high voltage diode / line ( the one with a thick (like the car distribution wire cable) single wire going to the tube). good luck

Dec 19, 2008 | IBM E74 17" CRT Monitor

1 Answer

Red Halo Hitachi 53FDX20B (2002) model year


You can get the replacement Convergence ICs at this website I am posting. Just order the same STK numbers that are on your Convergence ICs. They provide instalation instructions and free on line tech support with every purchase. Heres the link.

http://servicemanuals.vstore.ca/

Apr 11, 2008 | Hitachi 53UWX10B 53" Rear Projection...

3 Answers

Toshiba TV model CZ27V51 - picture+audio off, red light flashing


hi there, Flashing light red means a shorted electronic component is need to be replaced. do some test at video section, most of it are diode, transistors, transformers. ty

Jan 27, 2008 | Televison & Video

1 Answer

Kp-65ws500 RED


Sounds like a Cathod Short in the red CRT. May also be a CRT Board or a Video Chip heating up. To check for heat problems I use a canned agent called freeze spray. You can spray it on the boards and if the problem quits, the problem is in that board, then isolate it to a component ( transistor, chip capacitor etc). Good luck
Ed
NC Electronic
Mills, Wyoming

Dec 26, 2007 | Sony KP-46WT500 46" Rear Projection...

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