HI Badcaps from Australia,
I have a VIALI V32LEDF 31.5in (80cm) full HD LCD TV, only 2 1/2 years old and has developed the problem of slow start up.
I turn on the TV at the mains power wall point and the TV panel power red light immediately comes on solid.
There is no response to pressing the standby/power-on button on the remote or on the side panel buttons. So it then takes up to 70mins before it will respond to the standby/power-on button and then the TV panel power red light changes to solid blue, but there is no video display or sound. It then takes anywhere from 3 hours to 6 hours before the startup screen and Viali Logo bursts into life and the TV operates and works perfectly in every way, until I turn it off again.
The remote is unresponsive during this extended 3-6 hrs startup period and the only way to turn off the TV is to turn off at the mains power wall point.
I have read the posts extensively on your Badcaps site and so went looking for bad capacitors or burn outs on the power board. Nothing obvious was found, but I replaced the 14 electrolytic capacitors on the power board ( I am good with a soldering iron, have strong IT background). The capacitors I replaced, I marked with a red cross on the attached pic of an identical shopjimmys board. No change to the slow start up was observed yet.
I eventually found a chinese manual on the net that described the pin assignments of the power board. So with the back panel off the TV and all plugs and boards still in situ and power turned on ( 240V), I have measured all the volts of the outputs from the powerboard.
Please see attached PowerboardVoltsMeasured.JPG file for results.
So if it appears that the power board is producing voltage ( are the measured volts OK ? ) to the Video/main board and if the Processor and the Infrared remote receiver module draw power from the video/main board. To me it just looks like the Infrared remote receiver module is not being fully powered immediately and or the video/main board is not initiating the startup sequence immediately and maybe not processing the input from the Infrared remote receiver module.
Should I now start replacing all the electrolytic capacitors on the video/main board?
Power board = Aoyuan AY075D-4SF04 3BS0027014
Video/Main board = T.MSD306.69A 12023
LED Driver board = CMO T87D106.00
I have attached pics of these boards also.
Any assistance, thoughts or direction to pursue would be great appreciated, I live out in the country on a rural acreage property (yes have many Wallabies(roos) lol). I don't really want to trash the TV as it is an excellent TV and not even 3 years old. Just happens to have some cheap rubbish components LOL.
Many thanks from down under !
Shane
I have a VIALI V32LEDF 31.5in (80cm) full HD LCD TV, only 2 1/2 years old and has developed the problem of slow start up.
I turn on the TV at the mains power wall point and the TV panel power red light immediately comes on solid.
There is no response to pressing the standby/power-on button on the remote or on the side panel buttons. So it then takes up to 70mins before it will respond to the standby/power-on button and then the TV panel power red light changes to solid blue, but there is no video display or sound. It then takes anywhere from 3 hours to 6 hours before the startup screen and Viali Logo bursts into life and the TV operates and works perfectly in every way, until I turn it off again.
The remote is unresponsive during this extended 3-6 hrs startup period and the only way to turn off the TV is to turn off at the mains power wall point.
I have read the posts extensively on your Badcaps site and so went looking for bad capacitors or burn outs on the power board. Nothing obvious was found, but I replaced the 14 electrolytic capacitors on the power board ( I am good with a soldering iron, have strong IT background). The capacitors I replaced, I marked with a red cross on the attached pic of an identical shopjimmys board. No change to the slow start up was observed yet.
I eventually found a chinese manual on the net that described the pin assignments of the power board. So with the back panel off the TV and all plugs and boards still in situ and power turned on ( 240V), I have measured all the volts of the outputs from the powerboard.
Please see attached PowerboardVoltsMeasured.JPG file for results.
So if it appears that the power board is producing voltage ( are the measured volts OK ? ) to the Video/main board and if the Processor and the Infrared remote receiver module draw power from the video/main board. To me it just looks like the Infrared remote receiver module is not being fully powered immediately and or the video/main board is not initiating the startup sequence immediately and maybe not processing the input from the Infrared remote receiver module.
Should I now start replacing all the electrolytic capacitors on the video/main board?
Power board = Aoyuan AY075D-4SF04 3BS0027014
Video/Main board = T.MSD306.69A 12023
LED Driver board = CMO T87D106.00
I have attached pics of these boards also.
Any assistance, thoughts or direction to pursue would be great appreciated, I live out in the country on a rural acreage property (yes have many Wallabies(roos) lol). I don't really want to trash the TV as it is an excellent TV and not even 3 years old. Just happens to have some cheap rubbish components LOL.
Many thanks from down under !
Shane
Attached Files
Comment