Re: Magnavox 32MF369B/F7 volume stuck
You should look at the IR receiver board.
The push button board is mechanically contacts, simple on/off functions.
fastvideo
Senior Member
Last Activity: 04-04-2021, 10:31 AM
Joined: 12-20-2008
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Re: harmon/kardon sub-ts14 makes high-pitched squeal sound
Lexwalker is right.
First thing you should do is remove and clean all rusted glue between connections and pins of each components on each board.
then the Caps....Last edited by fastvideo; 09-02-2013, 07:07 AM.Leave a comment:
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Re: Adusting Horiz and Vert size Help!
Isn't it easier to adjust the screen size from the PC's video driver?
I would not do it with the TV, because the screen size will not be the same if you are using this input with other video sources.Last edited by fastvideo; 03-10-2013, 08:51 AM.Leave a comment:
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Re: Get rid of screen sparkles in plasma TV's
[URL="https://www.badcaps.net/forum/showthread.php?t=10657"]https://www.badcaps.net/forum/showthread.php?t=10657[/URL]
Is this the same problem we have here?
I still have that RCA and also a Hitachi plasma have similar problem both with LG panel, would like to see if that can be fix.Re: Get rid of screen sparkles in plasma TV's
[URL="https://www.badcaps.net/forum/showthread.php?t=10657"]https://www.badcaps.net/forum/showthread.php?t=10657[/URL]
Is this the same problemLeave a comment:
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Re: Panasonic plasma TH-42PZ80U 2 blink 15v SOS
A defective D board found....Leave a comment:
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Re: Panasonic plasma TH-42PZ80U 2 blink 15v SOS
I have the exact same problem on a th46pz80.
Any one has a fix on these yet?
Or any one has the service manual to trouble shoot?...Leave a comment:
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Re: Vizio VX37LHDTV10A - Mysterious Screen
A photo of the T con board is the best to see if that is the famous 400WHC8LV1.3 problem.Leave a comment:
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Re: samsung ln40b530p7fxza light up problem
[URL="https://www.badcaps.net/forum/showthread.php?t=14644"]https://www.badcaps.net/forum/showthread.php?t=14644[/URL]
Check here, should be the same power and inverter circuit.Re: samsung ln40b530p7fxza light up problem
[URL="https://www.badcaps.net/forum/showthread.php?t=14644"]https://www.badcaps.net/forum/showthread.php?t=14644[/URL]
Check here, should be the same power and inverter circuit.Re: samsung ln40b530p7fxza light up problem
[URL="https://www.badcaps.net/forum/showthread.php?t=14644"]https://www.badcaps.net/forum/showthread.php?t=14644[/URL]Leave a comment:
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Re: Samsung LN32B360C5DXZA Sound OK, No Video
#1 Sound is working. As you have already said at the first post.
#2 Please if you can confirm image is presents with a flash light.
I still think it is only back light problem.
Check back what I have pointed out on post #10, 11 and 14.
If there is no ON signal drive at PC802S, UB802 somehow is turning INV_UVLO to an On state.
Should check if UB802 and related component is having problem.
That is why I ask if I can try forcing the UI801 to On state at post #20 which Wizard doesn't...Last edited by fastvideo; 05-29-2011, 11:07 AM.Leave a comment:
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Re: Samsung LN32B360C5DXZA Sound OK, No Video
I am not sure if we can try to force UI801 SEM2006, Pin 16 On manually and how?Leave a comment:
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Re: Sharp Aquas LC-20B2UA random shut off issues.
There is no switch on the socket. See picture 5.
Pin 1, 13V/2.6A. Pin 2,3, 13V/1.5A.
Pin 5, 6, 7, GND.
The voltage and waveform from the fuse test point is good and always presents. Still sometimes it'll turn off. Or sometimes it stutter.Leave a comment:
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Re: Samsung LN32B360C5DXZA Sound OK, No Video
Replaced the board alone and tv works, so the problem must be the BN44 board.
Problem would be somewhere between how UB802 control INV_UVLO.
InverterON/OFF is not staying high after power on.
With the AC live voltage in one board is the worst design for repair. I stop at this point since all component is located underneath.Leave a comment:
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Re: Samsung LN32B360C5DXZA Sound OK, No Video
13v and 5.3v measure good, assuming power supply section is good.
back light drive signal is missing....Leave a comment:
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Re: Samsung LN32B360C5DXZA Sound OK, No Video
I have a BN44-00260b board that has the schematic except the output pins.
UI801 has no drive signal output. replaced a working SEM2006 but no drive still.
Replace the complete board cost me almost $100.00 and I have drive signal , TV works now. I would like to fix the defective board.Last edited by fastvideo; 05-22-2011, 09:28 AM.Leave a comment:
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Re: Sharp Aquas LC-20B2UA random shut off issues.
I have the same TV having this same problem.
All fuse are good, AC adapter is good.
[B]It turns off randomly. Sometimes it'll work for days and then sometimes it'll turn off. Or sometimes it stutter, turning off and right back on.[/B]
Is any service bulletins for this issue from sharp?Re: Sharp Aquas LC-20B2UA random shut off issues.
I have the same TV having this same problem.
All fuse are good, AC adapter is good.
[B]It turns off randomly.Leave a comment:
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Re: Toshiba 32HLC56
I have fixed similar problem before (Toshiba 32HL57), one or more of the cccfl is bad was found.Leave a comment:
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Re: Sharp lc32sh20u rare problem
IC4201 is a 36pin SMD type IC. I have to remove it with hot air and spent quite some time to put back the surrounding SMD components.
Warning:
This job is not recommend for newbies.
Replace the complete AV board is more safe and easy job....Leave a comment:
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Re: Sharp LCD
A little confused.
When you say the tv has intermittent problem to start up.
Is the tv turns on every time but you referring only to the problem or symptom from the picture posted on #5?Last edited by fastvideo; 01-07-2011, 08:31 AM.Leave a comment:
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Re: Sharp LCD
KX is good for the two and that is the same type on the board.
It is very very rare the line filter cap to cause this type of problem, but I have saw the one with the yellow circle instead....Leave a comment:
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Re: Sharp LCD
KY has a better life time 7000hrs....Leave a comment:
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