< Back

The set works normally on 405 lines but when switched to
625 lines the picture and sound fade out after some minutes,
with a hissing noise as though off signal. On repressing the
u.h.f. tuner button both picture and sound reappear for half
an hour or more. Both valves in the u.h.f. tuner have been
There is almost certainly a dry joint in the tuner.
Resolder all suspects or disturb each with a plastic tool to
see which is causing the effect.

Table of Contents

Leave a comment

I have read the privacy policy and accept
Read our privacy policy

This form collects your name, email and content so that we can keep track of the comments placed on the website. For more info check our privacy policy where you will get more info on where, how and why we store your data.

This site uses Akismet to reduce spam. Learn how your comment data is processed.