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Hi everyone,

I'm trying to repair a philips 55PUS7809 with power but no picture.

After disassemblying it, I found out that a Q3 transistor had blown away on the T-Con board réf. 6870C-0502B (LG Display)

Anyone could help me finding the diagram of this board?


Thanks a lot.

04/07/2019 : I ordered the board on aliexpress.com

10 days after, I received a refurbished board with one inductor case broken. Also I had to pick up a LVDS lever from the old board to replace one missing 
on the new board.

After plugin everything back, Tv is working again !!

Bought 1400€ 5 years ago, I'm happy to fix it with only 8€ (shipment included)

THanks Aliexpress !!!

 

BLACK&WHITE
24D6 S/N :15F00817 main:(T.VST59S.95) DUMP 

.

 

My sharp lc-55le653u keeps coming on shows sharp logo and goes black screen and keeps doing this will not come on normally replaced main board and power supply board but still no luck 
does anyone no a solution to this problem also can't find a service manual for this television. 
Please give any suggestions 
Thanks 

UPDATE: Note: This Model and CUC220, CUC720 almost identical My family b. this TV in 80' And worked ~15 years In 90' Black screen ... with Pot. in 100% Brightness, Contrast. In the end 90' puff doesn't work at all. Someone try repair but ... the same black screen. They reported ... try fix and get > Brightness In past 6 months, I repaired and new life come from the set, but now we get too much Brightness In your opinion ... the person try Adjust ... fix what? ABL - Automatic Brightness Limiter setup, regul.? R2533 R2538? Thank you for your comments, info. Ruy Please your comments: Brightness and Colour Pot. -> OK But Contrast Pot.: I can' rise ... NO FOCUS and washed out -> I only see a Blank RASTER. Best Regards, Ruy





__________________________________________________________________________________ ORIGINAL / PAST MSG Hi,
Super Color A 7100
The other sub-models in pag.1 - pdf
right bottom
elektrotanya.com/grundig_cuc120.pdf/download.html

The screen is black ... and we notice from time to time (when the image is very brig.) some small part of image.
Very few dots.

I tested the G1 2X V, G2 5XX V, Heather - G and J Volts in the neck of Cinesc.

Power Supply I tested +A 115 V, +C 200 V , +B 12V, +M 19V

In Pag. 6 - SSB and SB?         T2533

Thank you,
Ruy __________________________________________________________________________ Work with servers - OpenBSD, NetBSD, FreeBSD, Linux. Love Oscilloscope :-) , Repair, Satellite Dish, Multimeters. Have a Big Satellite Dish farm.