Re: This guy has an RCA 42PA30RQ
not sure if I did this right with the bitmap but lets see
not sure if I did this right with the bitmap but lets see
Attached Files
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Re: This guy has an RCA 42PA30RQ
Nope I guess notComment
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Re: This guy has an RCA 42PA30RQ
It worked, no thumbnail but it loads on my laptop. Something is definitely wrong. Can you repeat with the Y-buffer unplugged?Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
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Re: This guy has an RCA 42PA30RQ
oh I did get it right..I can see it on on my ipadComment
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Re: This guy has an RCA 42PA30RQ
oh that was with the y-buffer ribbons disconnected..let me hook them back upComment
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Re: This guy has an RCA 42PA30RQ
I mean for the whole buffer board to be removed, not just the connectors.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: This guy has an RCA 42PA30RQ
okComment
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Re: This guy has an RCA 42PA30RQ
y-buffer disconnectedAttached FilesComment
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Re: This guy has an RCA 42PA30RQ
More or less the same. So Y-main or control board is failed. Can you repeat the test on the X-main side?Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
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Re: This guy has an RCA 42PA30RQ
i replaced the Y-Main yesterday and my x-main has a humming sound coming from it. I checked for shorted components and found q4001 was shorted. its a RJP30E2 0712 part number. i had some new RJP30E2'S i had ordered for the old y-main board, so i replaced the shorted on on the x-main but that didn't do anything to fix the problem. so i ordered a replacement x-main.Comment
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Re: This guy has an RCA 42PA30RQ
this is the waveform when probing the VE testpoint on the y-mainAttached FilesComment
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Re: This guy has an RCA 42PA30RQ
Interesting -- definitely something appear shorted. However, I meant to test the X output. This is what goes to the orange ribbon on the righthand side.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
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Re: This guy has an RCA 42PA30RQ
Ok but i think i have a bad fet on that board..the Q4001 AND Q4007Comment
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Re: This guy has an RCA 42PA30RQ
my X-Main is dead,,it hums and no reading on the VE test pointComment
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Re: This guy has an RCA 42PA30RQ
Can I atleast see the output? Right now I think that both X and Y are bad.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: This guy has an RCA 42PA30RQ
okComment
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Re: This guy has an RCA 42PA30RQ
where do you want me to hook up probes on the x-main..on the VE testpoint?Comment
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Re: This guy has an RCA 42PA30RQ
On C4020, the leg closest to the black connector.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
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Re: This guy has an RCA 42PA30RQ
this is how i have it set upAttached FilesComment
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Re: This guy has an RCA 42PA30RQ
Looks good to me. Your X-main is slightly different to my spare one -- mine does not have that diode -- but it's similar enough.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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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... -
I have a 60 inch Samsung UN60EH6000F flatscreen TV. The screen went black a few months ago Sound is good, backlight is good, no menu. I replaced the TCon board with a used board purchased from Ebay. It worked fine for a 3-4 months, then the screen started ‘fading' back. Once again, sound is good, backlight is good, no menu. However, this time the picture looks fine for about 10-15 minutes, then fades back. If I power cycle the TV, the display reappears, for another 10-15 minutes, then fades black again. Repeatable ever time.
I ordered a supposedly ‘new' Tcon board this time, and... -
I have wanting to do this project for quite sometime now and I finally found a switching power supply that will work on this desoldering gun station ZD-915 that the original switching power supply took a shit and just was not worth trying to fix it because this switching power is not quite big enough to handle the heater element and the vacuum pump
One note when I tested the switching power supply and the voltage control board I noticed that this desoldering gun heat up much faster than the original switching power supply which I was really surprised by to the point that I might buy...
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