Hi everyone, hope all is well. I have run into a problem where my backlight screen is no longer working.
The original screen was beginning to show signs of faultiness. I believe it was part of the inverter board that was going bad. The backlight for the screen was still functional at this point. Well one night as I was tinkering with the laptop, my idiot self forgot to disconnect the battery from the motherboard. I attempted to reconnect the EDP cable onto the motherboard, and as you might guess, I saw a nice spark from the cable and the port. Don't worry, I'm still kicking myself for doing this ðŸ˜. I purchased a new screen, since the original was beginning to go bad regardless of what I did. I also purchased a new EDP cable thinking that it could be possible something shorted within it. After receiving the new parts the backlight does not come on. I am able to see a picture on the display, shining a flashlight allows me to see it.
I figured I would use my mistake as an opportunity to learn more about electronics and electronics repair. I am reaching out for help and any suggestions that may be given to me. I have found the schematics and boardview on this site, and with some research, feel as if I am starting to pinpoint what might have gone bad. I have uploaded two pictures that I took of the EDP connection with the components near it, as well as from the other side of the relative location. There is no visible damage from the components from what I can tell. Now even though there is no visible damage, doesn't mean that something could be blown. I used my multimeter to test continuity from where I could find the traces leading to one another and nothing seems to be show signs of an issue, at least from what I know (which isn't a lot!).
Referring to the schematics, I have found that J4501 is the connection for the EDP cable. I also found that pin 18 is for LCD_PWM_CON, which seems to be connected to SL4503 and D4509. Testing continuity between these connections gives me a signal. After doing some more research, I saw that pin 17 could also be the culprit in the backlight not working. Pin 17 seems to lead to quite a few components. C4522, R4508, R4534, and D4521 seem to be the more notable ones of the bunch. Testing continuity between these connections also gives me a signal. I have also read that in these cases, most of the time it's a fuse that has blown. I cannot seem to find the fuses, or maybe I do not know what they look like from what I've tried to find online. I feel as if now I have hit a roadblock and ask everyone for their expertise.
The serial number for the motherboard: G532LWS R1.3
I tried to take the best photos I could as close as I could for what I believe is the problem area. I am happy to provide any more photos if necessary. Thank you all in advance.
The original screen was beginning to show signs of faultiness. I believe it was part of the inverter board that was going bad. The backlight for the screen was still functional at this point. Well one night as I was tinkering with the laptop, my idiot self forgot to disconnect the battery from the motherboard. I attempted to reconnect the EDP cable onto the motherboard, and as you might guess, I saw a nice spark from the cable and the port. Don't worry, I'm still kicking myself for doing this ðŸ˜. I purchased a new screen, since the original was beginning to go bad regardless of what I did. I also purchased a new EDP cable thinking that it could be possible something shorted within it. After receiving the new parts the backlight does not come on. I am able to see a picture on the display, shining a flashlight allows me to see it.
I figured I would use my mistake as an opportunity to learn more about electronics and electronics repair. I am reaching out for help and any suggestions that may be given to me. I have found the schematics and boardview on this site, and with some research, feel as if I am starting to pinpoint what might have gone bad. I have uploaded two pictures that I took of the EDP connection with the components near it, as well as from the other side of the relative location. There is no visible damage from the components from what I can tell. Now even though there is no visible damage, doesn't mean that something could be blown. I used my multimeter to test continuity from where I could find the traces leading to one another and nothing seems to be show signs of an issue, at least from what I know (which isn't a lot!).
Referring to the schematics, I have found that J4501 is the connection for the EDP cable. I also found that pin 18 is for LCD_PWM_CON, which seems to be connected to SL4503 and D4509. Testing continuity between these connections gives me a signal. After doing some more research, I saw that pin 17 could also be the culprit in the backlight not working. Pin 17 seems to lead to quite a few components. C4522, R4508, R4534, and D4521 seem to be the more notable ones of the bunch. Testing continuity between these connections also gives me a signal. I have also read that in these cases, most of the time it's a fuse that has blown. I cannot seem to find the fuses, or maybe I do not know what they look like from what I've tried to find online. I feel as if now I have hit a roadblock and ask everyone for their expertise.
The serial number for the motherboard: G532LWS R1.3
I tried to take the best photos I could as close as I could for what I believe is the problem area. I am happy to provide any more photos if necessary. Thank you all in advance.
Attached Files
Comment