Vertical rolling only while watching broadcast. Played a DVD thru
external input and it was stable. Any tips greatly apreciated. Thanks

rogersk8ter ha escrito:

Vertical rolling only while watching broadcast. Played a DVD thru
external input and it was stable. Any tips greatly apreciated. Thanks

check the tuner's 33v and if need be replace any caps on that line.
-b.

b wrote:
rogersk8ter ha escrito:

Vertical rolling only while watching broadcast. Played a DVD thru
external input and it was stable. Any tips greatly apreciated. Thanks

check the tuner's 33v and if need be replace any caps on that line.
-b.


The Tuner is Toshiba TERD1-068A(found nothing in the internet). 33v ? U
mean BM pin? I measured as 12v.

Here is an update. I substitute the Tuner's IF signal from another good
tuner but the result is the same--vertical rolling. Guess Im close but
still not on it yet. Help appreciated.

rogersk8ter wrote:

Here is an update. I substitute the Tuner's IF signal from another good
tuner but the result is the same--vertical rolling. Guess Im close but
still not on it yet. Help appreciated.


Is there a coupling capacitor in the video path? If there is, it is
probably gone down in capacitance, and is rolling off the low frequency
response.


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida

Michael A. Terrell wrote:
rogersk8ter wrote:

Here is an update. I substitute the Tuner's IF signal from another good
tuner but the result is the same--vertical rolling. Guess Im close but
still not on it yet. Help appreciated.


Is there a coupling capacitor in the video path? If there is, it is
probably gone down in capacitance, and is rolling off the low frequency
response.


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell

Right Micheal, there is 1 or 2 i guess. need to check again. I only
take note of the electrolytic caps. Thanks.
Central Florida