Old Zenith TV set

J

jralegriam

New Member

• Jul 13, 2010

• #1

Old Zenith TV SAR2153BT7, with horizontal line (vertical scan off), was changed Vert Out IC, problem continue, was checked all related components, are Ok. Some suggestion for to check?

 

tvtech

Well-Known Member

Most Helpful Member

• Jul 13, 2010

• #2

First thing your new Vertical I.C needs power to/on it to be able to work. Google the Vertical I.C number and then check with a multimeter to see if it has supply voltage on said pins.

First step.

Cheers

 

Nigel Goodwin

Super Moderator

Most Helpful Member

• Jul 13, 2010

• #3

Yes, a VERY common problem is that when the IC fails, it blows the safety resistors which provide it's HT.

 

JimB

Super Moderator

Most Helpful Member

• Jul 13, 2010

• #4

/timewarp on

It will be the PCL85

/timewarp off

oops! where did the last 40 years go?

JimB

 

Nigel Goodwin

Super Moderator

Most Helpful Member

• Jul 13, 2010

• #5

JimB said:

/timewarp on

It will be the PCL85

/timewarp off

Click to expand...

Not in a Zenith it wouldn't be!

They never used valves with proper numbers.