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Odd camcorder viewfinder fault

A

Andre

Jan 1, 1970
0
Hi group

Interesting one this . Works for about a minute then sputters,fades
out and goes dead , "chirrups" on startup after that .

This is a JVC VF-V7E as used on the VideoMovie series GR-45E .

Solution - remove the HV lead by unclipping the four clips on the
front of the CRT, and carefully levering up the piece of plastic where
the white paint (retainer) is , pull off the HV lead . Thoroughly
clean the area and lead with IPA and allow to dry .

Worked for me :) The connector pinout is :-

1=video
2=gnd
3=+8V
4=Gnd

viewed from pin side of plug.

Gotchas on this one - check supply voltage if focus and geometry are
way off . Has to be exactly 8V on these units .

Connections are the same on the VF-V7E and they should be
interchangeable in theory .

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-A
 
A

Andre

Jan 1, 1970
0
Hi group

Interesting one this . Works for about a minute then sputters,fades
out and goes dead , "chirrups" on startup after that .

This is a JVC VF-V7E as used on the VideoMovie series GR-45E .

Solution - remove the HV lead by unclipping the four clips on the
front of the CRT, and carefully levering up the piece of plastic where
the white paint (retainer) is , pull off the HV lead . Thoroughly
clean the area and lead with IPA and allow to dry .

Its back . Same fault .

It is drawing more current than a similar unit. Any ideas ? (suspect bad 'lytics)
 
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