The owner of this old (1988) 15" TV tagged it as broken. He claimed that the TV worked but it took some time to turn on and synchronize.
I plugged it in but it never turned on. So, I decided to open the case and check for bad caps, cold solder, burnt parts, dust etc.
The original capacitors are a mix of Rubycon, Nichicon, Chemicon, Jamicon and Lelon.
13 caps were found bad, none of them bulging. Some of them completely open, some had higher esr and lower capacity than normal and some had normal capacity but the esr was a bit higher than the maximum allowed according to the datasheets. All were replaced with Rubycon YXF, Chemicon KY and Nichicon HE, except for a 400V 22uF that was replaced with a HEC 105C.
The TV didn't turn on. It was stuck on standby mode. What did the trick for me was to press the channel buttons repeatedly.
I am impressed with the picture quality of the tube, even though it is 24 years old. The sound is great and there is even a bass setting 
There are also RCA audio/video in and out connectors!
I am keeping it.
I plugged it in but it never turned on. So, I decided to open the case and check for bad caps, cold solder, burnt parts, dust etc.
The original capacitors are a mix of Rubycon, Nichicon, Chemicon, Jamicon and Lelon.
13 caps were found bad, none of them bulging. Some of them completely open, some had higher esr and lower capacity than normal and some had normal capacity but the esr was a bit higher than the maximum allowed according to the datasheets. All were replaced with Rubycon YXF, Chemicon KY and Nichicon HE, except for a 400V 22uF that was replaced with a HEC 105C.
The TV didn't turn on. It was stuck on standby mode. What did the trick for me was to press the channel buttons repeatedly.
I am impressed with the picture quality of the tube, even though it is 24 years old. The sound is great and there is even a bass setting There are also RCA audio/video in and out connectors!I am keeping it.
Attached Files
if you find these attachements useful please consider making a small donation to the site
