Hi,
I have a Samsung S24B300 that has an issue in which the screen is garbled when first turned on. After times varying from 5-20 seconds the screen resolves itself, but has red snow when displaying black.
The main circuit board is labeled sa350 and is the version with VGA and HDMI connectors, however I believe that the issue is within the tcon board. Anytime the screen is garbled, there is a high pitched noise coming from a cluster of components but when the issue resolves itself, the noise disappears.
I tested the powersupply, it is rated for 14v and it varies from 15 - 14v depending on the board and it also has a center pain making it non standard.
I believe the noise is coming from a capacitor that is going bad, I tested all the resistance for the capacitors in the region and the one with the lowest C18 1.06 ohms.
My theories are bad/cracked solder, broken or intermittent capacitors or that the power supply is not supplying enough wattage. Please let me know what you think.
Tcon board:
Tcon part numbers (I couldnt find any diagrams online):
Here is an image of the garbled screen:
And the service manual: http://www.go-gddq.com/upload/2011-1...2610175323.pdf
I have a Samsung S24B300 that has an issue in which the screen is garbled when first turned on. After times varying from 5-20 seconds the screen resolves itself, but has red snow when displaying black.
The main circuit board is labeled sa350 and is the version with VGA and HDMI connectors, however I believe that the issue is within the tcon board. Anytime the screen is garbled, there is a high pitched noise coming from a cluster of components but when the issue resolves itself, the noise disappears.
I tested the powersupply, it is rated for 14v and it varies from 15 - 14v depending on the board and it also has a center pain making it non standard.
I believe the noise is coming from a capacitor that is going bad, I tested all the resistance for the capacitors in the region and the one with the lowest C18 1.06 ohms.
My theories are bad/cracked solder, broken or intermittent capacitors or that the power supply is not supplying enough wattage. Please let me know what you think.
Tcon board:
Tcon part numbers (I couldnt find any diagrams online):
Here is an image of the garbled screen:
And the service manual: http://www.go-gddq.com/upload/2011-1...2610175323.pdf
Comment