Re: Vizio E480i-B2 Won't Turn On DPS-167DP IC901
Hi Digital_Dad,
I am also looking for the IC LD7913JGM6. I did send a private message as well. Thanks if you can help. Mike
squeaks
New Member
Last Activity: 05-20-2022, 06:01 AM
Joined: 11-23-2016
Location: Rochester
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Need to find replacement LED 6.5mm X 3 mm
I am looking to replace a LED for LG 55LM4600. The leds are for backlight mounted on strips on side of screen. There are 66 LED's although I am just looking for a few. Anyone know of the replacement LED type? I attached a closeup picture. The LED's are 6.5 mm X 3 mm. Thanks!... -
Re: LG 55LM4600-UC Backlight Shuts Down
Here are additional voltage information; I am assuming that I have a bad LED on string 6.
Voltages for each LED String measured at board pins (volt to ground):
Backlight on..........Backlight off
LED+ 78.8.............71.3
VC 1 8.4..............19.8
VC 2 8.2..............19.5
VC 3 8.6..............19.6
VC 4 7.7..............19.7
VC 5 8.4..............20
[B][COLOR="DarkRed"]VC 6 1.3..............24[/COLOR][/B]
VC 7 8.6..............19.9
VC...Leave a comment:
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Re: LG 55LM4600-UC Backlight Shuts Down
I have the service manual for 55LM4600; however, does anyone know how that I can get the power section schematic? Thanks, MikeLeave a comment:
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Re: LG 55LM4600-UC Backlight Shuts Down
The LED+ voltage to ground is 78 volts than drops to 71 volts after backlight shuts down. While the backlights are lit for about 5 seconds, the V1, V3, V5...are about 8.7 volts to ground. After backlight shuts down the voltage is about 20 volts to ground. With LED sockets removed the voltage is about 102 volts to ground at LED+. Thanks for your help....Leave a comment:
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LG 55LM4600-UC Backlight Shuts Down
I am working on LG 55LM4600-UC and LED backlight shuts down after a few seconds. Audio normal. LED on main board EAY62512801 blinks three times and stops and than repeats. Checked main electrolytic caps and they are okay. Since I am not very familiar with this model, could I get some troubleshooting tips. Thanks! Mike -
Re: New Members - please post your introductions here
Hi, I ran across this forum while getting information on a LG TV...and the forum looks great! Most of my electronic repair interest is now in 70's-80's audio gear; however, I have the necessary electronic test gear to work on most anything from tubes to IC's. Looking forward to using the wealth of information to expand my repair skills/knowledge! MikeLeave a comment:
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