With the camera turned on etc, try shining a flashlight at an angle close to the screen and check if you can see any images on the screen at all.
They will be very faint if they are there, so trying this in a darkened room may help.
''If you can see images,'' then there's a backlight problem with the screen.
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This could be due to a faulty backlight power circuit, a faulty flex cable/cable connection or a faulty display assembly.
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This could be due to a faulty backlight power circuit or a faulty screen backlight flex cable/cable connection
Check if there's approx. 3V DC between pins1-3 & 4-6 on CN0002 on the LC-1045 flex board that the screen's small backlight flex cable connects to.
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If there's no voltage there then it is supplied by a DC-DC converter (IC 5300) on the SY-1094 mainboard.
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If there's no voltage there then it is supplied by a DC-DC converter (IC 5300) on the SY-1094 mainboard - check CN3000 pins 49 & 50
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If there is voltage, check if the flex cable is OK and if so then the [https://www.google.com/search?client=firefox-b-d&q=Sony+Alpha+a6400+lcd+screen|display] will have to be replaced as it cannot be repaired.(examples only).
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If there is voltage, check if the flex cable is physically OK as best as you can tell
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''If you can't see any images'' it could be a faulty mainboard in the section dealing with the screen or a faulty screen. Here's the [document|26745|service manual] if you wish to delve further into the circuit.
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''If you can't see any images'' it could be a faulty mainboard in the section dealing with the screen. Here's the [document|26745|service manual] if you wish to delve further into the circuit.
Hi @samuelluca19941
With the camera turned on etc, try shining a flashlight at an angle close to the screen and check if you can see any images on the screen at all.
They will be very faint if they are there, so trying this in a darkened room may help.
''If you can see images,'' then there's a backlight problem with the screen.
This could be due to a faulty backlight power circuit, a faulty flex cable/cable connection or a faulty display assembly.
Check if there's approx. 3V DC between pins1-3 & 4-6 on CN0002 on the LC-1045 flex board that the screen's small backlight flex cable connects to.
If there's no voltage there then it is supplied by a DC-DC converter (IC 5300) on the SY-1094 mainboard.
If there is voltage, check if the flex cable is OK and if so then the [https://www.google.com/search?client=firefox-b-d&q=Sony+Alpha+a6400+lcd+screen|display] will have to be replaced as it cannot be repaired. (examples only).
''If you can't see any images'' it could be a faulty mainboard in the section dealing with the screen or a faulty screen. Here's the [document|26745|service manual] if you wish to delve further into the circuit.