Portacolor dead IF, am I on the right track?

[AlanInSitges]

Zeno FTW! IF cable from VHF tuner to the chassis was loose where it solders to the tuner. Thanks again everyone.

[zeno]

SH-BOOM oh life could be a dream.......

When I trained a new tech they they first needed simple theory.
Next know the block diagram. Last a good memory.

Then BEFORE the analyst & scope came out use your senses.
Listen, look, feel, hear. smell etc. Use quick & simple techniques.
In the tube days 95% of sets were fixed with a Simpsom 260 or
RCA Volt - Ohmist. Once in a while the ringer came out to check
a FBT or yoke. There are even cheats for that.
Glad I could help & WD by you.

73 Zeno
LFOD

[old_coot88]

Originally Posted by zeno

In the tube days 95% of sets were fixed with a Simpsom 260 or
RCA Volt - Ohmist. Once in a while the ringer came out to check
a FBT or yoke.

73 Zeno
LFOD

Ding, ding, ding. And in that order too. Plus, we had a Buzzit signal inector pen. Ran on two AA cells and put out a square wave with gobs of harmonics. Quick and dirty for pinpointing any dead stage from audio on up past the video IF range. Then there was the 'cattle prod' - a handheld Oudin coil zapper for cleaning rebuilt CRTs before installation.

Our most infrequently used stuff was the B&K Analyst, Sweep genny and scope.

[zeno]

Originally Posted by old_coot88

Ding, ding, ding. And in that order too. Plus, we had a Buzzit signal inector pen. Ran on two AA cells and put out a square wave with gobs of harmonics. Quick and dirty for pinpointing any dead stage from audio on up past the video IF range. Then there was the 'cattle prod' - a handheld Oudin coil zapper for cleaning rebuilt CRTs before installation.

Our most infrequently used stuff was the B&K Analyst, Sweep genny and scope.

Zup we had a few buzzits, nice chrome ones. We called them mosquitos.
Along the main bench we had a high shelf. It had everything imaginable
for 20 feet. Only got touched every few years. Asked the boss why not
thin out the duplicates & useless stuff. Nope it was there to impress the
customers.

Zeno

[old_tv_nut]

Originally Posted by AlanInSitges

Zeno FTW! IF cable from VHF tuner to the chassis was loose where it solders to the tuner. Thanks again everyone.

Great!

Do the DC voltages in the IF now match the schematic?