CRTGAMER wrote:D.D.D. wrote:Hey CRTGamer~
So bad news... my Wega Trinitron seems to be struggling to turn on these days. It still turns on but some days, when I hit the master power and it makes its "dooooon", on bad days that "dooooon" is gone or very minimal compared to usual.
It also did a 5x LED error blink, which according to Sony's service center means "something is wrong internally"... So vague. It made that LED blink once but went away the next day and worked fine for another week or so before making a weak "dooon" on power up again.
So what parts (if they have them still) should I make sure to check that they're replacing? The IC chips were replaced about 5 years ago by the previous owner (I assume those are still good...) but what about capacitors or a power board?
Thanks!
Weird coincidence that you brought this up. My bedroom HDCRT WEGA spare is also starting to act up shutting off by itself. Unlike the repaired twin in the living room, the bedroom Sony has not had the power detection chip upgrade yet and still has the older chips. I unplugged it for a week and was going to start the desolder then decided one more test run. Plugged it back in this morning (turns on as soon as plugged in) and so far has been on for a few hours. As an interim until you obtain the chips, maybe unplug your TV for a few days?
To minimize power surges of warmed up components and the power detection chips, only turn on the Trinitron WEGA once a day once you get it fired back up.
Your power detection chips could have failed again, especially if not the revised set. Even the upgraded chips have been known to fail. Possible good news is if the previous owner installed BOTH of the replacement Power Detection chips and also installed with sockets, the WEGA could be a very easy fix. A simple matter of popping in replacement chips. Be sure the newer revised chips are MCZ3001DB with the B in the model number. I would go the inexpensive chip route which usually is the cause before diving further with capacitor replacement.
See the OP for the repair and be careful of high voltage around the fat wire Flyback Transformer and back of the tube even when unplugged. Hope you have the sockets already installed, please post an update of which model chips are inside (maybe pics) along with the TV Model Number. Good Luck on the repair and hope you have sockets inside.
EDIT
It is now 6:45pm, a good sign the chips might hold out for at least a little while longer. The Sony HDCRT TV has been on for almost 12 hours straight. That unplug the power for a week seemed to help at least for the short term. I'll post an update if anything changes.
Well, I guess my TV usage is good - when I do use it, I do only turn it on once a day and only for 2~4 hours at most.
So more than likely, the Sony guy will replace the chips first and if so - should I expect the power on "dooon" sound to be quicker or more powerful or something else? Because it's never been a fast sound but certainly loud enough to hear - the two times it seemed to struggle it barely made the sound.
I'll see what comes up for the chips locally.
Thanks again!