Question about Standard (CRT) Televisions
Hi can you help ! my tv sony kv32ds60u i messed with engineers menu lost picture on tv ! is there anyway of resetting the tv to default settings ! please help thanks
If you did not save the damage that you did, or do any damage from over-adjustment, you can make a re-set to before the adjustments were made by simply unplugging the set from the AC mains for about 10 to 20 seconds. If the improper parameters were saved, or damage was done from over adjustment, then this procedure will not work for you.
Read on for more details:
There is no default actual default. Each set is individualy set up for its optimum performance. At the factory, during the manufacturing process they set the EPROM firmware parameters to a so-called reference value before they start the calibration. This is done during production on the burner that programs the EPROM.
If the paramters are too far off to have the set working, you will have to take the set for service at a factory service rep. The factory service shop will most likely have to change the complete circuit board that constains the uPC EPROM with a new one that has the reference factory set-up. They will then have to go through the complete set-up with calibration procedures using the factory recomended calibration standards instrumentation to match for best performance. To manualy do a full calibration on the test bench it can be about 2 hours of work.
Because the factory service setup was not meant for consumer use, it is possible to over adjust parameters to the point where you can lock the set out of operation, or actualy do damage by over-adjustment.
Posted on Apr 19, 2008
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