When TV is first turned on there appears to be an instability in the horozonal, after 20 minutes or so(time keeps grtting longer), it settles down and picture is normal. If we leave the TV on, problem never appears. If you turn it off, even for 5 minutes, the instability appears and it takes 20 minutes to settle down. TV is 4 years old. Please help? What PC board or module will I have to replace? Thanks, Ed Wilson [email protected]
Hello Super Guru,
I have Toshiba 43VJ22P for 3 years. Now I can only see pixels for first 20 minutes, after that I can see some hazy pictures on screen only. What is the solution. Your smart ideas will be highly appreciated
I have a Toshiba Modle 57h81. When you turn the TV on it automaticly goes to shut down mode. I've already check the fuses which are all okay. As well as changed out the convergence ic's. The problem continues to remain. Can anyone help me?
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Re: Toshiba model 57H81
If you have zagged lines there are 10 small surface mounted capacitors you will need to change on the HYper Board. This is not an easy repair so alot of folks simply replace the hyper board. You will need a service manual to take this set apart and to get the proper part number. If you have no TV repair experience or do not know how to solder, as the hyper board has sheild arounfd it, you should play it safe and call out a pro to assist you in this repair. Good Luck
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This model like several others had problems with what is called a Hyper board inside which processes all signal inside the set.
From a Toshiba service bulletin:
No: PJTV200503 2 Pages Ref: WU032505 Product: Projection TV Date: 3/25/05 Models: 42H81,43HX71, 43H71, 50HX81, 50H71, 50H81, 53HX71, 53H71, 57HX81, 57H81, 61H71, 65HX81 AND 65H81 Product Safety Precautions: Product Safety Precautions are described in the Toshiba service manual(s) for models covered in this bulletin. All safety precautions and checks shall be complied with before returning the equipment to the customer. Servicers who defeat safety features or fail to perform safety checks may-be liable for any resulting damages and may expose themselves and others to possible injury. Application: The information contained in this bulletin applies only if you encounter the symptom(s) listed below. Subject: MVPU13 Hyper Module Repair (23786198 / 23148017X) Symptom: Multiple Symptoms may be experienced depending on which capacitor is faulty. The primary symptoms are jagged, digitized or pie crusting of the picture. The set may also be described with a poor sync condition. Corrective Action: Remove the MVUP13 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.) TOSHIBA AMERICA GOISJSUIVIIER PRODUCTS, L.L.C.
There are several surface mounted capacitors that dry out with age and usually the problem starts out when first turned on and then eventually after on a long enough time the set works--the time will get longer as the problem gets worse.
The board is no longer available and only two options here: locate and replace all the selected caps which is not a do it yourself job or remove the board and send it out for rebuild.
Let me know if you need more info as I have seen dozens of these sets with this kind of problem.
It could be the lamp went out and needs replacement. The Toshiba website states when this happens to unplug the televison for 10 minutes then plug back in. If that does not work then try another power outlet. If that does not work then call for service
I have a toshiba 55hx70 same problem,repair guy just left said it was the power supply and wasnt worth fixing 350 to 400 dollars The tv is 9 years old and they wouldnt even take it to shop. Its been a great tv firs thing to go wrong.. Wo nder if I could replace it myself???