50in hitachi plasma tv 50pd690dta power issue
Hey there
So new to this forum and a little out of my field ha. I typically fix much smaller electronics (phones) as I run a iphone repair biz. I have recently acquired a 50 in hitachi plasma tv that showed display problems.
I have since found from scouring the web and these forums that the lower sdr buffer has gone bad and I have parts on order. I know that this was an issue because as soon I remove the faulty part the upper portion of the screen displayed.
This leads me to my second issue. When plugged into power. The red power light comes on. Upon clicking the power button (on TV set and on remote), the tv clicks three times ( third click I believe to be the cooling fan attempting to start as it twitches but does not turn on), followed by two more clicks about 3-5 seconds later. During first three clicks. The power button switches from the red indicator to green (blue) and does not appear to flash a sequence code. Followed but returning to red light when the second 2 clicks happen.
Now when powering up, grey lines appear on the upper portion of the tv, so apparently that means something that I can't remember ha. Maybe that the yseus board is ok?
So what am I asking with this long post?
So beside the lower buffer? What may need replaced, I have seen stuff from the main power board, ac plug, to simply playing with the ospocuplers?(or however it is spelled ha) essentially to bypass some part of the ac power.
Also, since the fan does not seem to start, only slightly jerk during power, will that need replaced?
I can post photos tomorrow if needed.
Let me know if I missed any info that may be relevant or useful.
Cheers
So new to this forum and a little out of my field ha. I typically fix much smaller electronics (phones) as I run a iphone repair biz. I have recently acquired a 50 in hitachi plasma tv that showed display problems.
I have since found from scouring the web and these forums that the lower sdr buffer has gone bad and I have parts on order. I know that this was an issue because as soon I remove the faulty part the upper portion of the screen displayed.
This leads me to my second issue. When plugged into power. The red power light comes on. Upon clicking the power button (on TV set and on remote), the tv clicks three times ( third click I believe to be the cooling fan attempting to start as it twitches but does not turn on), followed by two more clicks about 3-5 seconds later. During first three clicks. The power button switches from the red indicator to green (blue) and does not appear to flash a sequence code. Followed but returning to red light when the second 2 clicks happen.
Now when powering up, grey lines appear on the upper portion of the tv, so apparently that means something that I can't remember ha. Maybe that the yseus board is ok?
So what am I asking with this long post?
So beside the lower buffer? What may need replaced, I have seen stuff from the main power board, ac plug, to simply playing with the ospocuplers?(or however it is spelled ha) essentially to bypass some part of the ac power.
Also, since the fan does not seem to start, only slightly jerk during power, will that need replaced?
I can post photos tomorrow if needed.
Let me know if I missed any info that may be relevant or useful.
Cheers
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