20 Most Recent Toshiba 32AF42 32" TV - Page 2 Questions & Answers


sounds like a sticking tact switch. an engieer would isolate the sub-panel that contains the volume and the manual programme up/down switches and then operate the TV using the remote control and see if this eliminates the problem

Toshiba 32AF42... | Answered on Oct 22, 2008


I think you'd have to look at how much a comparable set would cost. I know that flat screen sets are coming down in price.

One thing you could try is to adjust the focus control although if it just went all of a sudden, then this may not help. There are two controls on the flyback transformer. Follow the thick red wire from the top of the picture tube down to the transformer that it's connected to on the circuit board. There will be two controls, the upper one being focus (marked with an "f" or the word focus). Try adjusting this while watching the picture. A mirror may be helpful. At the same time, be very careful what you touch in there, any metal part could have high voltage on it. As long as you are just touching plastic parts you should be ok. A good rule of thumb is to keep one hand behind your back as you work so as you don't inadvertantly ground yourself to the chassis while touching something with a high voltage on it.

If this scares you a little perhaps it's worth taking the set to a shop for an estimate.

Toshiba 32AF42... | Answered on Oct 14, 2008


this symptom is usually caused by a breakdown in the power-supply circuit. in most modern receivers (transistorised and/or ic), it may also be caused by a breakdown in the horizontal deflection circuits (horizontal oscillator, pre-drive or drive circuits.). this is because the supply volatages for the tuner, video intermidiate frequency(VIF), video amplifier, sound intermediate frequency(SIF) and vertical output circuit are usually supplied by the horizontal output circuit. since you are not inclined with this kind of job, better bring it to a qualified tv technician. with regards to the cost of repair, i cannot tell you the price since my location is different from yours. but to give you and idea, here in philippines $100 is enough for this kind of trouble!

Toshiba 32AF42... | Answered on Oct 01, 2008



NO Sound
First check to make sure there isn't a mute switch or switched to external speakers, then
use ohmmeter to measure the speaker resistance (3ohm to 30ohm is usual).

Now find the speaker wires, and follow them down to the pcb, and look for a chip with
7/8 legs then measure the voltage on all of its legs, you should get 8v to 20v on one pin and half of that on one of the others, the internal circuit of most chips is that of a push/pull output stage, with the output coming from the middle of the pair of transistors.
(if there is no chip then it will actually be a transistor push/pull pair).
snd.gif

If no voltage of at least 6v then look at the pcb from each leg of the chip, and look for an electrolytic cap to earth, thats the power line,
so follow it and look for a voltage regulator or straight from power stage (PSU),
and test if voltage there.

check for fusible resistors and power diode and smoothing cap.

If voltages are ok, then when your meter (other probe hanging loose) probe touches the input pin ,a buzz from speaker should sound, if not then change chip.

if buzz occurs then your looking for the SIF chip,
so look for a three legged Xtal filter with 6mhz (5.5mhz europe) thats the chip.

Questions
Is the eeprom/micro pro set to a different country sound system ?
Is the mute line on ? micro pro control
Is the speaker switch set to internal ?
Is there power to the output chip ?
is there at least one pin (on the o/p chip)with about half the power voltage ?
Is there power to the sif chip (12v) ?
Is the tv from another country (different xtals) ?

Hope this may help you;

Regards,
VOTIT

Toshiba 32AF42... | Answered on Sep 21, 2008


you are an idiot

Toshiba 32AF42... | Answered on Jan 09, 2008


Quite possibly the HVT arcing, which will eventually fail.

The problem with them arcing is they can be doing damage to other components.

Best to have it checked by an experienced tech.

Toshiba 32AF42... | Answered on Jan 06, 2008


Hi i,m ken I am working on this problem, I found this tv has chip problems, start at the power supply ($100) and go from there. If the power supply checks out ok check the chips, there is a way to reset the chips, also disconnect any add ons to the tv, and try that. I was told you can remove the batteries from the remote press all the buttons and reset the chips, but they did not have good results! I will keep working on this. ken

Toshiba 32AF42... | Answered on Jan 02, 2008


Hi. Sounds like DRY JOINTS WITHIN DFS MODULE. This is a pcb within a rectangular metal screened box on the left hand side of set when looking from the front. Will need resoldering be carefull very fine print will need decent soldering iron with fine tip & poss magnyfying lamp to aid looking. If your not at all sure take to repair shop. This TV is nice set has one of the best crt pictures you can get.

Toshiba 32AF42... | Answered on Sep 05, 2007


bad high power board or main control board

Toshiba... | Answered on Oct 10, 2019


go into set up and choose tv air then channel search make sure you have an antenna connected for free tv

Toshiba... | Answered on Oct 10, 2019


no internet functions try using a smart DVD player for roku accessories

Toshiba... | Answered on Oct 10, 2019


amazon or ebay with model number or RCA universal remote

Toshiba... | Answered on Oct 08, 2019


If u need to see online on usinig internet on your pc it is easy. For solution check the below link >>> http://w.atch.me/3qny1s

Toshiba... | Answered on Oct 08, 2019


Same issue here. I kept plugging in the TV and it would flash the logo and go black. I disconnected the LED line from the power board, plugged the TV back in and the LED's all lite up and got great picture. Turned it off and on a few times with the power switch with no problem. Left it alone about an hour, came back, got the same symptoms all over again, Flash then nothing.

I changed out the Power Supply board....same issue, Flash of logo and black screen. Probably going to heave ho the set.

Toshiba... | Answered on Oct 05, 2019


You might have gotten a magnet close to it but you can't fix it if you did that

Toshiba... | Answered on Sep 29, 2019


check input or source settings if ok check picture setting

Toshiba... | Answered on Sep 28, 2019

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