Question about Sony KP-46WT500 46" Rear Projection HDTV-Ready Television

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Model # We need Model number confirmation on this one......then confirm IC part # and and advise concerning fuses and / or resistors............T.

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  • Vista Electronics Feb 23, 2008

    Bad solder connection on one leg of capacitor = examine

    with magnifier........T,

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  • Sony Master
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Im sorry ive been so busy with so many different tvs i have forgotten which set i was asking about? I have one RCA ptk178LA that has bowing at top& bowing upward on bottom it acts like bad cap because sometimes it will all of a sudden snap into full correct picture, then after awhile it will go back to bowing.

Posted on Feb 23, 2008

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I am repear to philips crt tv 21pt2217/94 this tv power suply not work ?plese help


check the fuse resistor for tea1506 and confirm that all parts
from the psu are ok before you try to power the tv.
check well any mistake will destroy the new parts

Nov 30, 2014 | Philips Televison & Video

2 Answers

Ok my 42la45h tv has been losing sound, and now the sound does not want to come on at all...the manufacturing date is oct.16,2007


I have been answer this earlier,

=========================

Hi Mike,

I worry the AV PCB was damage on your TV. But prior to get repaired / replaced , first please check your audio line like wiring terminals/ connection.
If nothing problem there, you need to repair /replace the AV board.

Regards

Sep 28, 2011 | Proscan 42LA45H 42 in. LCD TV

1 Answer

I have a vizio model number vp422hdtv10a and it keeps blowing a fuse everytime i plug it in. do i need a new power supply?


This would confirm a power board componet failure , I would suggest you change that out for the fix. I recommend shop jimmy.com or partstore.com I sure wish you best of luck with your repair, do ask that you please leave some feedback, ratings for your free advise. Regards Rulds2008

Aug 18, 2011 | Vizio L32 32 in. LCD HDTV

1 Answer

I'm not getting any audio whatsoever - whether it be the TV's own speakers or my headphones. Suggestions? Thanks.


Possible failure of the output IC in the Tv's audio section.
First of all open and check for possible failure of the main power supply to the output IC, Check if the series fuse/fusible resistor has opened, if after replacing the same issues come up then it is confirmed that the IC is defective.
If power comes to IC then check on the bias resistors around the IC or the feedback loop,-- capacitors in this section.

Aug 28, 2010 | Sharp LC19SB27UT LCD TV

1 Answer

Kenwood amp sound goes on one channel


You will need to check on the failed channel with reference from the working channel. If the model is having an IC check for the fusible resistors in the biasing circuit. If not your output IC could be faulty.
Open the set and check for any loose connections. make sure your speaker is fine and cross check for confirmation.If the speakers , the fuses are intact, then you will need to signal test to see if the premap is working or the output is at fault. So check this out. Good day

Jul 24, 2010 | Kenwood Audio Players & Recorders

1 Answer

Televison showing Yellow and Blue shadows


Your symptom sounds like a damaged convergence IC.

There are two and large IC’s that control the convergence in a big screen set. They are secured to a very large aluminum heat sink. They will have a part number stamped on them that will start with an STKXXX-XXX, like STK392-110, and they are located on the signal board (on the left as you look into the back of the set).

Along with the convergence IC’s there will also be some associated components that will need to be replaced as well. There are some resistors that are part of the convergence circuit that will be open and need to be replaced. Most likely these will appear charred in the center. If you have an Ohm Meter or a DVM, check all the resistors that are close to the IC’s and you should be looking for either ones that have opened or have changed values.
There are also two resistors on the front of the board located in the middle that are fusible link resistors, these should be checked for opens and replaced if they are found so.

I would suggest that you contact a service center in your area for a complete diagnosis and repair, as this type of repair can get a little tricky. But if you want to repair the set yourself, just remember to be careful. The capacitors and CRT’s can hold a charge and may shock you.


If one of the convergence IC’s are found to be bad, I would replace them both, if one has gone bad the other may go soon. I usually order my parts from Andrews Electronics in California; they will have the OEM components that you will need.
Their site is http://www.andrewselectronics.com/welcome.aspx
And their phone number is a 24-Hour Order Desk: (800) 274-4666
I recommend the phone order so you can talk to the person about the different types of IC’s that are available.

I would also advise that the convergence IC’s be OEM or better, just because they are cheap does not mean that they are a good deal. I have seen the cheap IC’s fail after a short time, even though they look exactly like the OEM IC’s. I think that the bottom line is that you will get what you pay for when it comes to the parts.

You can also try http://www.tvrepairkits.com/ , I have not tried them yet, but they do carry OEM or better parts.

I hope this information allows you to resolve this issue.
If you need any further assistance please respond to this post.
asnowman

Sep 22, 2009 | Panasonic PT-47WX49 47" Rear Projection...

1 Answer

Hi my philips television model number 34PT 5693 just sudden can't turn it on and the 'on' button was no light at all. I try to change the fuse inside the television and just blow off the fuse.


Check the mains rectifier ( 4 diode's or 1 block ) for short circuit ,also check the NTC/PTC resistor ,the power FET and power IC,if the last 2 parts are broken then measure al high omhic resistors between 300V and IC.

Jul 27, 2009 | Televison & Video

1 Answer

Samsung pcl5414r power resistors and pico fuses??


Hi again and welcome back to FixYa,

Appreciate the direct "Ask Me'.

Based on your original post, only the STK ICs were replaced. Presumably 392-040, the surrounding resistors and pico fuses could very well have been affected as well. Depending on the board revision (pls confirm location numbering on the actual board), the resistors could be:
RZ104 -RZ106 - 270 Ohm 1/2watt
RZ133-RZ135 - 27K Ohm 1/16 watt
RZ136 & RZ138 - 3.3K Ohm 1/8 watt
RZ146 and RZ147 - 3.9 Ohm 2 watt
RZ148 and RZ149 - 150 Ohm 2 watt
while the pico fuses would look like the image below.
90b151e.jpg
Good luck and Thank you for using FixYa.

Dec 26, 2008 | Samsung PCL5415RB 54" Rear Projection...

1 Answer

Detailed problem per your response


The problem is that the ICs may have been blown because the resistors were bad. Just as a double check before you replace anything else. Please confirm that the STKs are STK392-110. Also, replaceing them with STK392-150 is a valid upgrade, I'm not sure about the 180s, but I'll check. Both the STKs and the resistors need to be changed at the same time.

The hour glass view you reported: Was the bowing on the top and bottom or on the sides?

Thanks,
Dan

Sep 11, 2008 | Panasonic PT-47WX49 47" Rear Projection...

1 Answer

I have a Samsung B/W Monitor, model Name SSC-12M for an observation System. Turns on for a few secomds, and then gets a straight line across and turns monitor on and off, Capasitor maybe? Worth repair ing...


The vertical Ic either has bad connections or is defective. Look for a small flat IC attached to a heat sink with about 11 pins. Try resoldering the pins first. If that fails to resolve it, replace the IC. This IC may be marked LA7837 or something similar. If you are unsure, post the marking here and I'll confirm you have the correct part.

Dan

Aug 28, 2008 | Samsung Televison & Video

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