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Toshiba 50H13 50" Rear Projection Television Questions & Answers
Picture too large for screen
If the television is connected to a cable box such as Time Warner's HD box, the picture mode can be changed by pressing the '#' on the cable box's remote keypad (where the channel numbers are). This cycles the picture between zoom, normal, and stretch which could be cause of your problem.
The red and blue are
Replace Convergence ICs and check resistors in front of ICs. They will be big black ICs and will have PN# on them ,example STK392-110.
Mats has ICs 1-800-628-1118
Cant lower volume.I can turn
hi,
There's an I.F (intermediate frequency) section on your TV it is found beneath the tuner.it is covered with a metal case with an access hole for the adjustment setting.there are two I.f. one is VIDEO I.F and the other one is for SOUND I.F.use a small plastic jewelry flat screw driver to adjust the pot turn it clock wise or counter clockwise until you get the desired adjustment.make sure that you are adjusting the correct pot for audio not for the video I.F during adjustment observe the picture (screen) turn the pot once the picture changes or get blurred that pot is for the video.choose the next I.F that's for the audio adjustment.Adjusting these pot must be done when the power is on and you have a clear reception on channels.therefore be very careful of the high voltage from the circuit.
clean also the board use a paint brush to remove dirt and stains at the main board specially at the pins of the I.C's as this dirt,s can alsoleads to the same kind of problem.
good luck let me hear if you need further assistance.
My TV repairman needs a schmatic for my Toshiba
First of all ur tv is out dated.Any experience Tech. DLP,Plasma or LCD big screen tvs,should now how to fix ur tv or an idea,what wrong with it.No tvs schamatics for any tvs model's will be release to any non tv shops or people dosen't have any relation with the tvs Corporations manufactures. Give me the problems,cause to the tv,when the power is on to the tv?Might help u find the cause of the problems and those websites,selling refurbishes PCB boards for the replacement.
My picture shacks vary fast from side to side toshiba 42H83
You could have a bad color wheel or there is a Factory Service Bulletin from Toshiba that says:
Remove the MVUP14 Hyper Module from the TV chassis, remove
the top shield and replace the 10uf, 16v capacitors using Part Number
24619040 as shown in Figure 1. It’s recommended that all of the
capacitors identified in Figure 1 be replaced. (Note: These capacitors are
low impedance surface mounted aluminum electrolytic capacitors. Care
should be taken to avoid damaging the PCB while replacing these
capacitors.) You should call a good TV Tech to do this repair.
Hyper Module repair on 50H13
you need 2 check all the caps on hyper bwd.last one i did had 31 or 32 bad SM caps
change all----22mf---2.2mf---1mf---10mf
carefull not to lift traces
Toshiba 50h13 image trembling
something is not in tolerance in the deflection circuits if it is an up and down tremble its vertical deflection related and if its shakey from side to side its horizontal deflection. You will most likely need a skilled tech for this type of repair.
Thank you
Sorry I thought I posted the link here it is . At the site their is a information box on the left bottom of the page with a "contact us" link just click that and that will open the email link where you can post your request.
http://servicemanuals.vstore.ca/
Thank you for the help
youre looking at a charge of about 350 to 400 dollars for that repair. The site I posted rebuilds boards. Leave an email and request a quote its sure to be cheaper than a local repair shop.
IC convergance
David, Thanks for the compliment. Here is the link I am part owner of the site. We sell quality ICs and provide step by step instruction with pics, Plus we sign you up for a free email and instant messaging so you can actually do online instant messaging while you do the repairs. We started the site just to help people out so they could stop paying crazy amounts of money for simple repairs they can do themselves. heres the link to the site. If youre not sure which model STK you need just leave us an email and one of us will get back to you and let you know exactly which ones you need for your model.
http://servicemanuals.vstore.ca/
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