I am an eletronics engineer with some experience in TV repair. I have problems with TDA 8362B IC which doesn't have vertical deflection output. The IC has been replaced by a new one but no change. The sawtooth can be seen on an oscilloscope. The tv shows an horizontal line only. Thanks for yor help.
I don't know the model# But can supply you with an idea. If it is the L04.1Uaa chassis. Rarely two smds 2461 and 2462 go bad. Located at base of q7455 and q7456. Take it for what its worth, its a shot in the dark. Leave the light on!
Check resestor 3413 val. 1.5 ohms or 3440 val. .1 ohms or 3457 val. .22 ohms beside the flybck ok guly
TDA 8362B IC which have vertical freq.output is at pin no.43. (vert.osc) caution for fixing this problem minimise brightness to avoid crt burn. proceed as follows 1 if you are getting sawtooth at output of ic tda 8362 pin 43 then check 1 supply at vertical output ic from eht. 2 yoke connector loose . 3 check vertical output ic parts. 4 finally vertical ic. please check for normal output from power supply even though fault gets rectified just for protection. good luck.
309 views
Usually answered in minutes!
×