2000 RCA Entertainment Series 27" console model G27647 problem

[jbattles]

try a rectifier diode lowest you got. get close as you can to 35 volts. check the resistance on the resistor network. i could tell you how to do voltage checks, if i do i would like for you to at least watch some u tube videos. need to see if you your 23v supply and 13.6 off the vert side of yoke and 7.6v supply from jungle ic. i am betting the output ic. get an idea on checking voltage and i can tell where to check.

[pac.attack76]

Originally Posted by jbattles

try a rectifier diode lowest you got. get close as you can to 35 volts. check the resistance on the resistor network. i could tell you how to do voltage checks, if i do i would like for you to at least watch some u tube videos. need to see if you your 23v supply and 13.6 off the vert side of yoke and 7.6v supply from jungle ic. i am betting the output ic. get an idea on checking voltage and i can tell where to check.

Ok I'll check into it

[pac.attack76]

I have new diodes showing 8435 SA7.OA

[jbattles]

you have a sa8.0a that's 13.6v. you could try it, but i suggest voltage checks first.

[pac.attack76]

Looks like the sa7 is all I have besides a sa5

[zeno]

PAC
saw ur message. jbattles giving you good help so far. I will jump in
with comments.
1) several resistors in around the vert IC look overheated. Cant tell for sure but they are the 2 light blue ones.
2) if you order parts buy a new vert out IC, they should be under $10.
3) look under the vert out IC. See if it has bad joints or is getting
toasty brown.
4) try tapping the chassis & see if the pix returns to normal.

The CTC203 was the last true RCA then they went China.
I only saw a hand full & that means either not many were built or they
were very reliable. Hence I have little knowledge of them.
Good luck
Zeno
LFOD !

[pac.attack76]

Originally Posted by zeno

PAC
saw ur message. jbattles giving you good help so far. I will jump in
with comments.
1) several resistors in around the vert IC look overheated. Cant tell for sure but they are the 2 light blue ones.
2) if you order parts buy a new vert out IC, they should be under $10.
3) look under the vert out IC. See if it has bad joints or is getting
toasty brown.
4) try tapping the chassis & see if the pix returns to normal.

The CTC203 was the last true RCA then they went China.
I only saw a hand full & that means either not many were built or they
were very reliable. Hence I have little knowledge of them.
Good luck
Zeno
LFOD !

Yes he's been a great help. I hate to see this one go being the last of its kind. I'll check into a bit more.

[zeno]

Note that most training manuals dont show everything. It would help
to get a copy of the service manual, any CTC203-## should work.
Even just the vert area. At that point you can decide weather to
troubleshoot or shotgun.

73 Zeno
LFOD !

[pac.attack76]

Originally Posted by zeno

Note that most training manuals dont show everything. It would help
to get a copy of the service manual, any CTC203-## should work.
Even just the vert area. At that point you can decide weather to
troubleshoot or shotgun.

73 Zeno
LFOD !

Should I just go ahead and order the ic?

[pac.attack76]

Where do I order the ic?

[zeno]

A few OEM-NOS RCA parts distributors. I dont know who they are sry.
For them you need the 6 digit RCA part #. Format is ######. It probably starts with a 2. Also have the FULL chassis # & the designation of
the IC ( such as IC### ) from the PCB just in case.

Alt is pull the old IC & get the generic numbers off that IF it has any.
Also if the IC got real hot the numbers can fade away. They can be searched
for & often subbed to a replacement line such as TCG.

73 Zeno
LFOD !

[pac.attack76]

Ty 👍

[rcaman]

RCA part number is 215531 or tda8172
i probley have some of them

[pac.attack76]

Originally Posted by rcaman

RCA part number is 215531 or tda8172
i probley have some of them

How much for it if u do?

[vortalexfan]

I might even have some of the Parts you need for your TV in my parts stash, a few years back the local Salvation Army Store (before they closed up shop for good during the pandemic) had a couple of baskets full of old electronics parts that came from a local appliance repair shop that went out of business because the owners passed away, in that basket was a bunch of RCA, Zenith, Magnavox (NAP) ICs for TVs and VCRs.