Question about Sony FD Trinitron WEGA KV-32HS500 32" TV

2 Answers

No Picture, No Sound

The set went blank. No sound, no picture. Left it set for a few days and tried it and low and behold it worked, for about a week. I can hear a humming sound when it is turned on, like the power supply is on. The red light blinks in the front panel. Any ideas?

Posted by on

  • landen_davis Aug 31, 2008

    when i turn on my tv a humming sound. turned it off and on it is still there what can i do?

×

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Guru:

    An expert who has written 7 tips or uploaded 3 video tips

  • Master
  • 859 Answers

Hello,

Dust tends to be attracted to static generating devices like TVs and this dust creates a insulating blanket on circuit boards which then fails to allow the board to cool down properly. Specifically, the board(s) that converts the power coming in from the wall socket to various voltages and amperages to supply the variety of functions in a modern TV today. Additionally, to this dust blanket effect, circuit boards that heat up and then cool down often suffer from "Electronic Fatigue". This is a phenomena resulting from the molecular structure of the boards base material structure changing state many many times (cold/hot, hot/cold). Eventually, the fatigue causes come components, resistors for example, to fall out of their designed spec and range of tolerance. Once the electronic components fall out of its range of tolerance the engineered design of the circuit board will either fail completely or work weakly and then fail. In electronics, for TVs in this example, the physics of the circuit board and its onboard IC chips either work correctly or don't and when they don't a fail safe device turns energy off to all onboard systems to avoid extra ordinary damage that would most likely result in a fire.. or worse.

Sorry this sounds long winded but, I believe in giving a thorough answer and to not assume what your knowledge level is or isn't.

Back in the Day, what we termed TVs like your example was a TV 'on the blink'.

Have fun shopping for your new HD Flat Panel,
Worldvet

Posted on May 22, 2008

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Expert
  • 56 Answers

Bulb error

Posted on May 22, 2008

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I have Samsung UN395005H model, few days back it suddenly went blank while sound is proper. I tried different inputs HDMI is also working but without picture. Can you please suggest possible solution


Bad capacitors on your power board. Remove the rear cover and check for swollen capacitors. If they are swollen, you can de-solder the bad ones out, and solder new ones in.

Sep 15, 2016 | Samsung 39" LED 1080p HDTV UN39FH5005FXZP...

1 Answer

Sound no picture


Like stated before--May be another bad blub, especially if you used a generic or Neolux one. A phillips bulb WILL work right. Mits sets do NOT like generic bulbs !!

Apr 05, 2014 | Mitsubishi WD-73827 73" HDTV DLP TV

1 Answer

Picture is black. sound went out a few weeks ago and now all that seems to work is the red power lamp turns on and I hear a click but that's all. I am not concerned about the picture since it is c


The click is a power relay on the main board and if the red light is on I would suggest looking inside to see if it has more than one relay--follow the power cord into the set----some of these sets have one relay but others have up to 3.

They are know for sticking open or shut. A tap on them can free them..A look inside even by a novice may also reveal something burnt or unplugged etc.
12_5_2012_3_12_13_pm.jpgview of relay bottom side is up.

Dec 05, 2012 | Hitachi 53SDX01B 53" Rear Projection...

1 Answer

I have a Phillips FLATTV model ... Problem with the Philips Flat Panel Televisions I have a Phillips FLATTV model 42PFL7662D/ 05 I have no picture, the audio is OK, I have had a hissing noise for about 2...


Try with that...
http://www.filestube.com/3c4e959f7e53ba6703e9,g/PHILIPS-42PFL7932-LC420WU5-V2-CIRC.html

Symptom:
Sound but no picture.

Cure:
Master or Slave inverter is defective.
It can be that the driver IC is defective or MOSF
inverter transformers, or 470uF 35V C
Replace driver IC BD9897FS or MOSFET's.
996500046243 IC BD9897FS
996500046242 Mosfet FDD8447L
996500046241 Zener KDZ100V

Oct 18, 2010 | Philips Televison & Video

1 Answer

LG Projection Screen No Picture


Hello, if the model number is correct it's not a projection tv, but an LCD tv. If that's correct, it sounds like a bad main board issue part # is AGF31218501...thanks

Apr 25, 2017 | LG 42LC2D 42 in. LCD HDTV

1 Answer

Blank black screen


Hi. A new LCD screen will solve this problem. Have a look here for the parts and a guide http://www.formymobile.co.uk/6300disassembly.php

Nov 18, 2008 | Nokia 6300 Cellular Phone

1 Answer

I think I have the same tv. Its a philips 50 in projection tv.


Common problem with the older projection Magnavox TV set. The opto IC chip has failed. Try www.magnavoxhelp.com - They have instructions and kits on their site.

Jun 14, 2008 | Philips 9P5034C 50" Rear Projection...

2 Answers

Samsung DLP TV no picture or sound 2 weeks old lamp


Hello, DAvid43, what model is your Samsung DLP tv?

Jun 01, 2008 | Televison & Video

2 Answers

1998 50" Rear Projection Hitachi Model #50SBX70B--NO picture


can you see the g2 from crt sound like you list your g2 from
the flyback.i need m# plz

Mar 30, 2008 | Hitachi 57SWX20B 57" Rear Projection...

1 Answer

No sound


Did you have storms go through your area and lightning strikes or power surges? We did a few weeks ago and I have very raspy sound but perfect picture...

Mar 04, 2008 | Sony DAV-S300 System

Not finding what you are looking for?
Sony FD Trinitron WEGA KV-32HS500 32" TV Logo

73 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sony Televison & Video Experts

kakima

Level 3 Expert

102366 Answers

The Knight
The Knight

Level 3 Expert

72640 Answers

Jerry Greenberg
Jerry Greenberg

Level 3 Expert

1667 Answers

Are you a Sony Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...