How is the picture with a vcr connected by a scartcable.

If the picture is there right away, suspect the tunerpart. If so the tuner
has possible some electrolytic capacitors inside which are leaking. Check
the pcb traces for interrupts made by the leakage.

Greetings Peter

"Janne G" schreef in
bericht ...
Hi all

I have a Philips 28ml8805 (FL1.6 or near) with a strange and hard to find
problem. The unit is a slow starter which mean that it takes up to 20min
to get picture while the sound is comming on after 5s. Sometimes the
picture comes after 15s but goes away again after som sec and then it
takes several minutes to reappear. The picture is real good (when on) and
no mechanical respons from all circuitbords.

No problems with the 200v, 141v, 5v, 8v, 13v, 16.5v, the only voltage
thats diff a little is 17.5v is 19.5v. I have changed the tda4680 in an
atempt to se if it was the cause of the fault but no diff.
I think i have checked all resistors around this circuit and found no
fault in them, i have resoldered all components in the HOT area and some
outside it also, no reaction on the fault.

I have seen some that have this problems also on the net but no answer to
what it is. I suspect the CRT but thats no option to change, the odd thing
is that the picture is WERY good on this unit when working so this would
oppose the theori that it is the CRT that are the fault.

Is there some that have a clue to whats wrong with this unit?

Janne G


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