A650C1 Won't Start, Lamp light flashing, Won't turn off
My question is about the 72" version of the same
TV Model HL72A650C1FXZA
TV Serial: AMBF3CKQB01234B
Version: OG01
Came into room while kids were watching TV, and the screen was frozen. Picture was clear. No sound. TV would not turn off by remote or front-pannel stand-by button. Had to pull the plug.
Plugged in and re-started, and the TV screen would not come on. Standby light comes on, then disapears when power button is pressed. Lamp light flashes constantly. TV will still not turn off by remote or front button. Onboard 'channel +/-', 'source', 'vol +/-' buttons do nothing.
Replaced the bulb with high quality one at the link below. TV has the same problems even with the new bulb, except that now when the TV turns on, the screen illuminates but stays a flat black/grey colour.
I am asking for advise on a way to test what components need to be replaced, or a suggestion on order of components to investigate, as I have little experience with this type of TV. Can anyone help or suggest the next step, as the next components seem to be $200 and up, and I don;t want to spend that kind of money without some level of confidence that it will help solve the problem.
Update 10/15/2016
Here is the lamp starting video. You hear the click, one ballast 'tick', and the lamp lights up.
7 件のコメント
This is the replacement bulb used:
https://amzn.com/B00O5VYJJI
Oliver さんによる
@actionman1 a black screen with the lamp on is usually caused by a bad DMD board. you did not tell us if the lamp light LED still flashes??
oldturkey03 さんによる
Thanks. My other research was leading to the same conclusion. Can you explain a little more about the DMD board? What is the diference between a DMD Board, and a DLP Chip?
Yes - the lamp light still flashes continuously while the TV is on.
Oliver さんによる
DMD board ( digital micromirror device) is where the DLP IC is mounted on:-) What bothers me on your TV is that it continues to blink.
Check to see if your ballast works. Remove the rear cover, then plug in the set. Push the lamp switch and listen for the power supply to click. If it does, the lamp switch is working. Then take a look at the ballast, see if it sparks. If it does it's good if it does not it could be a bad ballast or power supply.
Also make sure lamp cover switch is activating
oldturkey03 さんによる
Thank you, @oldturkey03 , This is very helpful. I will test and let you know the outcome.
Checklist
-lamp door switch
-Power supply clicking on
-Ballast sparking
-DMD Board
Oliver さんによる
2件以上のコメントを表示