Re: Emerson hdtv troubleshooting
Coming back to fixing this tv....power board checks out ok,fuse is ok..but yet it looks like I have no power to the tv since the standby light is off when plugged in...could it be the cord itself?
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Re: Emerson hdtv troubleshooting
I've attached the pic of the bottom portion of the board..notice the brown spot by q600 and off to the side is d605 ,d605a and d605b...
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Re: Emerson hdtv troubleshooting
I made the measurements of d604 and d605 on the bottom of the board,but if you look at the bottom of the board,the only things you can pop off of the board are labeled d604a and d605a..I'm assuming these are the actual components ,d604 and d605.Should I have measured around d604a and d605a instead? Also, if you look at the bottom of the board,it looks like q600 has a burn spot? I just wanted to check to make sure before I pull anything off the board..thanks!
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Re: Emerson hdtv troubleshooting
Ok..I went ahead and bought a multimeter,an innova 3320 with the diode setting.I remeasured all 5 diodes mentioned in previous posts and the readings seemed more realistic.I also checked out the video you posted on here,Martino,and adjusted my readings..the first reading is forward bias,the second is reverse bias:
D 604 -(.665V/0L
D 605 -(.667V/.890V)
D 610 -(0V/0V)
D 613 -(.468V/0L)
D 640 -(.214V/0L)~~~Measured on the 2 solder points on either side of black component
on bottom of board
also,D604,D605...
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Re: Emerson hdtv troubleshooting
how do you remove the two that are in the board?
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Re: Emerson hdtv troubleshooting
I used a different meter(fluke with automatic selection)...D 613,D 605, and D604 read 0L....D 610 was .5 with leads both ways..the craftsman meter still has the same readings as in above post.
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Re: Emerson hdtv troubleshooting
yes the power was off and unplugged
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Re: Emerson hdtv troubleshooting
readings I got: D605(4.99kohms/4.99kohms)....D613 33.5kohms/33.5kohms....D604 0L/0L
D610.....0.4 ohms/0.4ohms......2 of the diodes I guess are in the board,and no legs are visible(D 604 and D 605 I believe) so I had to measure from the bottom points on the board.
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Re: dynex hdtv/emerson hdtv troubleshooting
Yes I got the power board cheap off of ebay because the dynex was my bedroom tv and I really needed that one up and working so I would not have to watch hours and hours of kids programs..lol...
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Re: dynex hdtv/emerson hdtv troubleshooting
tv fixed! thanks :-)
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Re: Emerson hdtv troubleshooting
it has a diode setting but its on the same one as ohms..
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Re: Emerson hdtv troubleshooting
and the other diode still has the one leg removed from the board....
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Re: Emerson hdtv troubleshooting
it came out to be 9.21 volts
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Re: Emerson hdtv troubleshooting
yeah I will desolder it when I get off of work tonight and give you the results tommorrow.
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