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Old 06-18-2015, 06:23 PM
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Radio Shack RS-16-127 TV - Info?

First post here.

Almost all of my hobbyist repair work has been on tube test equipment and radios. I also have some older (50's vintage) TV's that I plan to work on someday (after I get a little more experience with repairing simpler circuits).

Before getting into "the glow" I dabbled in making my own boards, building little circuits etc. Still do actually.

To the point:

I picked up a little Radio Shack TV 4-1/2" B&W TV recently. It's in near perfect condition inside and out. There are a couple of electrolytic caps that look like they have upchucked their innards and I'm going to replace them before I power it up. I may replace them all. Idk... I'm not sure how long an electrolytic cap will last. I recently replaced four Ecaps in a little Westinghouse H-841P6 and that greatly improved it's ability to receive stations so my thought it that it would be helpful to replace them in the TV. I think the radio is a 1963 vintage. I'm not sure when the little TV was sold. There are a lot of Ecaps in the little TV though. Opinions on this are welcome and will be appreciated.

Does anyone have an idea where I can find a schematic and/or service info for a Model RS 16-127 TV? The CRT is a QPH20-90-NO1A.

Last edited by Mike6158; 06-18-2015 at 06:34 PM.
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Old 06-18-2015, 07:06 PM
WISCOJIM WISCOJIM is offline
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No schematic, but you can get a parts list here: http://support.radioshack.com/produc...isions&Reuse=N

.
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Old 06-18-2015, 07:12 PM
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I found that. In fact that's all I found. Much to my irritation there isn't a single capacitor listed.

Surely someone had to service the tv at some point in it's life
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Old 06-18-2015, 09:01 PM
WISCOJIM WISCOJIM is offline
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Resistors and capacitors are generic. Just match the values you remove for replacements.
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Old 06-18-2015, 09:08 PM
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I understand that, but there are a couple dozen Ecaps nestled down in a very small board. I couldn't read any values when I opened it up. A parts list that actually included all of the parts would be nice.

I'll keep looking. I find it hard to believe they would not have a service manual for a TV, even one this small (but it's becoming less hard to believe. This site was the last resort. RS, not surprisingly, didn't respond to me email).
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Old 06-18-2015, 09:14 PM
WISCOJIM WISCOJIM is offline
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You may have better luck identifying the manufacturer and see if they put out the same item under their own brand name.
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Old 06-18-2015, 09:21 PM
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True. I had hoped that a search for the picture tube would give me something to go on but it had even fewer hits. I didn't have it opened up for long so I could've missed something.
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Old 06-23-2015, 01:32 PM
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A ~15$ ESR tester from ebay will help you determine which lytics need to be changed, and could cut down the work.
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Old 06-23-2015, 02:04 PM
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A lot of those 4.5" sets were sold in the mid 80's under the name "Rhapsody".
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Old 06-26-2015, 05:23 AM
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Quote:
Originally Posted by Electronic M View Post
A ~15$ ESR tester from ebay will help you determine which lytics need to be changed, and could cut down the work.
I have one of those, a couple of Sencore LZ meters, and a few other cap and inductor testers but if I pull the cap, for no more than they cost, I'll just replace it.

Quote:
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A lot of those 4.5" sets were sold in the mid 80's under the name "Rhapsody".
Thank you. I'll do a search and see what comes up
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Old 06-26-2015, 08:19 AM
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If you get an assortment of standard values, it can save a lot of trouble, and be useful in the future. Something like 1uf - 1000uf, 50V radials. I find most are in the 4.7 - 100uf range, and buying 10 each of standard values is sure easier than tracking down a parts list for every item you repair.
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Old 06-27-2015, 06:54 PM
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I finally sucked it up, took it apart again. and made a list.

It's posted here in case someone happens along and needs the values. No schematic, just a list of electrolytics. All of the 470µf caps eviscerated themselves.

https://www.dropbox.com/s/934a8alxh8...itors.pdf?dl=0


You might be able to see all of the "cap guts" in this pic.

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Old 07-02-2015, 10:12 AM
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Is this set Korean or Red China ?
Looks to well built for China........

73 Zeno
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Old 07-02-2015, 10:47 AM
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I don't see any cap guts in the small pic, only what I think may actually be glue.
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Old 07-29-2015, 06:09 AM
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Quote:
Originally Posted by zeno View Post
Is this set Korean or Red China ?
Looks to well built for China........

73 Zeno
I'm not sure. I'll dig it out this evening and see if I can find out


Quote:
Originally Posted by lnx64 View Post
I don't see any cap guts in the small pic, only what I think may actually be glue.
There is definitely glue on a some of them but, going off of memory which isn't all that reliable, I think I saw two places were the caps were leaking. I'll double check when I open it up this evening.
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