Re: Sony Bravia KDL-46EX640 no power
@ budm: yes its a match. will firmware flashing recommended?
@ budm: yes its a match. will firmware flashing recommended?
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Re: Sony Bravia KDL-46EX640 no power
@ tom66: will check now the LVDS cable.Comment
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Re: Sony Bravia KDL-46EX640 no power
when you power up the unit, the display is very OK. But after 5 or 7 seconds later, picture is greenish
Last edited by bullwinkle; 05-20-2014, 05:12 PM.Comment
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Re: Sony Bravia KDL-46EX640 no power
@ tom66: reset the LVDS cable. no joy. will check againComment
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Re: Sony Bravia KDL-46EX640 no power
http://esupport.sony.com/US/p/model-...3#/downloadTab
yes firmware update is neededComment
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Re: Sony Bravia KDL-46EX640 no power
update:
Cannot update firmware since the present firmware is already V1.245. Any other suggestions?Comment
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Re: Sony Bravia KDL-46EX640 no power
here is another pic of the board going to the panelAttached FilesComment
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Re: Sony Bravia KDL-46EX640 no power
perform a firmware update that should fix itComment
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Re: Sony Bravia KDL-46EX640 no power
Maybe, you have to change something, in the service menu.Comment
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Re: Sony Bravia KDL-46EX640 no power
Is it OK that the mainboard I purchased is from KDL-55EX640 instead of KDL-46EX640? Based on visual observation, both mainboards are a matach. Even the prints are all same.Any inputs?Attached FilesComment
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Re: Sony Bravia KDL-46EX640 no power
any suggestions?Comment
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Re: Sony Bravia KDL-46EX640 no power
That can cause problems, Sony TVs are notoriously picky about the panel size requirement. You need to use 46" board.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: Sony Bravia KDL-46EX640 no power
Oh my , ok thanks for the info tom66.Comment
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Re: Sony Bravia KDL-46EX640 no power
I'm the other way around, I have a 46" board and 55" TV. Shopjimmy states, that it should be compatible.Comment
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Re: Sony Bravia KDL-46EX640 no power
I'm the other way around, I have a 46" board and 55" TV. Shopjimmy states, that it should be compatible.Comment
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Re: Sony Bravia KDL-46EX640 no power
Update:
Got the T-Con board. Same thing. No progress.
Time to take a closer look at the original mainboard. Any suggestions/help is appreciated.Comment
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Re: Sony Bravia KDL-46EX640 no power
Well, I again visually checked the original mainboard and the one that I bought (it displays 55" not 46" in its current firmware version). Comparing the two visually I could say it is all same ie components, etc.
My plan is since the mainboard I bought gave life to the TV except it is showing greenish display and I also bought a T-Con board and result is still the same. So, this mainboard I bought displays 55" instead of 46" in its firmware, is it OK if I flash it with a lower 46" firmware and then flash it with the latest 46" firmware?
The firmware version of the mainboard that I bought is current but I cant reflash it again since it will display the version is current and no option to reflash except cancel option.
Any suggestions? Please?Comment
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I have a Sony Bravia KDL-40V2500 that will not power on. The indicator flashes red 3 times.
I do not hear any sound and I cannot see any backlight.
I have tried disconnecting every cable on each board one at a time to see if anything changes.
The only change is when I disconnect AC-DET cable on the Power Supply board or on the other end if I unplug the CN7009 connection on the B-Board and try to power on the TV the indicator will stay on solid green until I power off.
My friend ordered another used power supply board but it is also doing the red indicator flash 3 times... -
Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.
Upon bringing it home and plugging it up, it showed a standby light.
I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.
The screen seems to blackout and stay black, but with a flashlight I can see the display.
With my Playstation 4 connected via HDMI, and running a game I can hear sound.
Assuming... -
Hi all!
I'm trying to troubleshoot a Microsoft Surface Pro (5th gen) model 1796 that won't power on. Motherboard model is M1007506-015. My priority is retrieving data, but the SSD is integrated so it looks like if I can't repair it it'll need to go to a data recovery company. I've done a little basic board repair before, but nothing this advanced until now. So please forgive my ignorance in advance. 😅
I found the boardview for this laptop in the forums here, and am able to open it on my PC with FlexBV.
https://www.badcaps.net/forum/troubl...-hardware-devi... -
Hi all,
TL;DR - this laptop is driving me nuts with the oddball power-related behaviors. Appreciate any insight you can provide!
I'm experiencing a power issue on an Asus Probook P5440UF-XB74. Although I've worked with electronics and computers for decades, this is my first attempt at getting into motherboard-level component troubleshooting. Any help the community can provide is greatly appreciated!
A few weeks ago I was using the laptop (on battery power) for a Zoom meeting. The battery was running very low (long meeting) but I wasn't worried about... -
SONY XR-77A80J shuts off as soon as it is powered on. It goes into standby ok when plugged in but when power button is pressed, relay clicks and tv powers off. Power supply board makes a sound that sounds like momentary coil whine when it clicks off. The main board appears to turn on and has working optical.
I pulled the power supply board for visual inspection & there wasn't anything obvious. I am not sure how to go about testing this OLED as it is a bit different than the last one (LG) I tried to repair. The only voltage listed on the PSU is 12v for T-CON. The 12v is not present...
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