ctm48rc teac screen wont stop rolling. is there a vlock knob

[normmel]

hi,
my old teac ct-m48rc screen wont stop rolling. i know in the old days there was a vlock knob to stop the rolling.does this model have one on the board somewhere?
thanks in advance

norm

[F.O.K>]

You could try wooden blocks to hold the tv in position!-(joking!). No the tv is electronically locked to stable frequency- when comp in circuit degrade- unlock can occur- what is needed is an experienced repairer who will test comp & r/p faulty so your tv is like new again.