Mulja tv repair portal

Equipment Repairs => CRT TV forum => Topic started by: purpleroadie on July 06, 2008,11:25:55

Title: logik lcx27wn2
Post by: purpleroadie on July 06, 2008,11:25:55

fault with invertor board, already checked transformers and transistors, appear fine

Title: Re: logik lcx27wn2
Post by: petros on July 09, 2008,12:11:24

Quote from: purpleroadie on July 06, 2008,11:25:55

fault with invertor board, already checked transformers and transistors, appear fine

the problem with those invertors are the transformers. Don't expect to find a s/c or o/c ,just compare the resistance between the trafo legs ,you'll find one higher than on a similar trafo(2k higher).philips is using on many models the same trafo. Good luck.

Title: Re: logik lcx27wn2
Post by: purpleroadie on July 13, 2008,11:43:14

these are the readings im getting so far when measuring the tx's
pin 1 to pin 8 and pin 4 to pin 5 all read from 940 to 960 ohm
pin 5 to pin 8 on T1,3,5,7 no reading, on T2,4,6 reads 1920 ohms
pin 1 to pin 4 on T1,3,5,7 no reading, on T2,4,6 reads 0.0 ohms
any further advice