Zenith Chromacolor II (Ch. 19EC45) 19" color tabletop TV repair log

[cj_reha]

Originally Posted by Electronic M

One of these is my repair bench TV...Mine still works and has never received anything but 'percussive maintenance'...Which it has been needing more frequently the last few years.

IIRC the chassis is 19HC-something...If you post the chassis number I may b able to scan the Zenith issues schematic.

It's a 19EC45. Correct me if I'm wrong, but the first letter designates year of manufacture, isn't it?

[Electronic M]

Originally Posted by cj_reha

It's a 19EC45. Correct me if I'm wrong, but the first letter designates year of manufacture, isn't it?

Model year actually. A was 1970, and some letters such as I, l and 0 were skipped due to their resemblance to numbers.

I gotta not post late so I don't miss things like chassis number in the title.

[zeno]

Its an E4025W early production probably sold in 1973.
Uses separate caps instead of one 4 lead cap. IIRC there are 5 in
the set. Look behind chassis, flyback & behind the horz output.
Change them all at once unless they are orange.
IIRC vert fuse is 400 ma. See tag near fuse. If you change the module
you can use a 9-92 or the updated & better 9-147.

73 Zeno
LFOD !

[cj_reha]

Originally Posted by zeno

Its an E4025W early production probably sold in 1973.
Uses separate caps instead of one 4 lead cap. IIRC there are 5 in
the set. Look behind chassis, flyback & behind the horz output.
Change them all at once unless they are orange.
IIRC vert fuse is 400 ma. See tag near fuse. If you change the module
you can use a 9-92 or the updated & better 9-147.

73 Zeno
LFOD !

There are six of those white caps in this set - three on the chassis (one of which blew open), two soldered directly to the tripler and one soldered directly to the horizontal output transistor. I plan on replacing them all, need to find a good source for 22-5001 caps (or I might just order modern Panasonic replacements, even though they're radial types and might be a challenge to fit in some spots).

The tag near the fuse just advises me to replace the fuse with an authentic Zenith factory replacement or damage might occur...that helps me a whole lot.

Hmm, the tip on the updated vertical module is interesting. I'd prefer to fix what's there, but if I come across a whole bunch of fried components, I'll definitely see if I can find one. Thanks!