Single horizontal blue line.
I have changed STV9306B, all condensators, cheked all resistors and semiconductors in vertical output. Pin5 on IC(sync) is 0V and pin7(flyback) is 0V. Output VOUT on pin9 is 22,5V linear (there is no saw). Supply is OK(24,5V).
Any suggestion what to do next? Vertical synchronisation STV9306B get from STV2248 pin47.
Is it posibile that TV set has service horizontal line?
Thank you for your help.
Topic: Grundig chasis TV4K, model STF 72-1002/7 text (Read 5685 times)