I have an old panasonic quintrix tv, every now and again it turns itself into standby mode and cant be viewed as every time i press a channel number it flicks on briefly makes a couple of clicking noises then goes back to standby mode. Sometimes a swift smack to the side of the tv fixes the problem for a couple of days. Is it time to buy a new tv?:-)
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Re: time for a new one?
How old is this TV?
My experiance is to not put money into a TV that is over ten years
old. TVs stress out their electronic components worse than almost
any other electronic product. After 10 years, there are so many
parts that are ready to fail that your are probably wasting your money
trying to get any more life out of it.
Another option is to wholesale replace the main board by sending it to
Module Exchange at 972-298-1212, or PTS Electronics
Be careful on buying a new one though. Often times, these new
technology ones are much worse. Always Google the model number of
the set you intend to buy and add the word 'repair' or 'complaint' to
see if it is one of the many models that are customer service
nightmares being produced by even the most reputable companies today.
Hope ya fix it!
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If the TV turn itself off then perform the following steps:
(i) Check if the Sleep timer is activated.
(ii) Check if the Parental Guide prohibits viewing during that time and/or limits amount of viewing time per day.
(iii) Check the batteries on your remote, low battery power may cause random signals from the remote.
(iv) Disconnect all the cables from the TV then reconnect them after a few hours.
(v) Ensure the power cord from the TV is directly connected to a functional wall outlet.
(vi) You may also try resetting the TV to the original factory settings by pressing the Reset button on the remote control supplied with the TV when in Menu.
The following is the information indicated by the blinking patter of the standby/timer lamp on the TV:
2 times : Power does not come on. Load on power line shorted.
3 times : The TV has entered standby mode.
4 times : Has entered standby state after horizontal raster. Vertical deflection pulse is stopped. Power line is shorted, or power supply is stopped.
5 times: No raster is generated. CRT Cathode current detection reference pulse output is small.
6 times: No picture
9 times : No sound
Furthermore, the TV is equipped with a self-diagnosis function that you can use to determine whether the issue is related to any hardware malfunctioning. Perform the step given below to run self diagnosis:
Quickly press the remote command button in the following order from the standby state.
Display -------> Channel 5 ---------> Volume -(minus) --------> Power ON.
If the Self Diagnosis display numeral "1" for any parameters then a fault has been detected and service will be required.
The proble you have is an intermittant power supply or sweep power supply. Unless you can find a bad connection on the power and deflection board, this could be a very difficult problem to find. I have ran across this problem a couple of times, and after spending countless hours troubleshooting, I replaced the main board and all the problems were taken care of. The board part number is at samsungparts.com and I found the board for you. it is located here:
http://www.samsungparts.com/part_detail.asp?catalog%5Fname=Parts+and+Accessories&product%5Fid=BP94%2D01266A&search%5Fmodel=HCP4752W Good Luck
I too have a Sony KDS-R60XBR1 tv and the issue that you are experiencing is due to one of your fans in the rear of the tv is not working. The tv automatically shuts off in protective mode. Make sure the POWER/STANDBY light is blinking and not the lamp light below it. Is the power/standby blinking 4 times in red? If, yes then its a fan that needs to be replaced. If its the lamp light blinking then you need to replace the lamp. The lamp is easy to replace by ordering the lamp either from Sony for $250 or find it cheaper for approx. $150 from other DLP sources and replace youself by following your manual. I hope this helps you.
The first thing I would check is the line output transistor this is the large transistor mount on the heat sink next to the lineoutput transformer (the big black thing with the lead going to the side of the tube) just replace it if you have no meter to check it.