Measuring Yoke resistance help

AgeArcade11

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I'm thinking of buying a chassis from 8liners.com and need to know the vertical impedance of my monitor yoke. Can someone give a guide on how to do this?

I have a multimeter with the ohms setting starting at 200, then 2k, 20k, 200k, 2m etc. I unplugged the 4 pin molex (yellow, blue, green, red wires) connector from the chassis and stuck the leads in on the ohm setting 2k. I got a reading of .095 for the yellow and green wires. (vertical impedance) Changed to .08 when i set it at 20k. Is this the right way to do this?? Any help appreciated thanks.
 
Set your multimeter on 200 ohms. NOT "K" ohms as we are going to read values between 1 and 60 ohms not 1000 or higher.

To measure horizontal, put one of your meter's leads (doesn't matter which one) into the RED connector and the other into the BLUE for horizontal. Should be between 1 and 4 ohms.

To measure vertical, put them in the YELLOW and GREEN. Should be between 7 and 60 ohms.

Report back what you have and we can tell you what it is more likely compatible with.

Also post the model # written on the sticker on the picture tube itself so that we can be sure the pinout of the tube neck is of the correct type. There are MANY different pinouts sharing the same number of pins, so never assume just because it has 8/9/10 pins it will fit a 8/9/10 pin connector. The number should have an A51 or A48 in it if it's a 19" tube.

When measuring be sure to put solid force and let the meter stablize for a few seconds, sometimes oxidation can cause much higher resistance readings and give wrong measurements.

Given you are seeing .095 (did you mean .95?) @ 2K and .08 at 20K, I suspect your vertical winding is around 8-15 ohms (low impedence), but make sure you check with the right range on the meter.
 
If you tell us the model you're replacing, we can usually tell you what you need to tell 8liners...
 
It's an RCA 20 in tv. Model number # s20521wn serial number s040520790.

I was going to replace the chassis for a tm 202g with it but then decided to use this TV. The yoke had wires red/brown and blue/white.

I took it apart with a friend, and in the process forgot to measure the resistance... So i guess im boned now on knowing the vertical and horizontal impedance for it. It has 9 pins though. I'm guess it's an 8 pin since the 9th pin was in the middle of the neck board?

My tm 202g measured

vertical 97.4 - I'm guessing 9.7 ohms? On the 200 setting.
horizontal 2.3
 
Something doesn't seem right on the ohms? Do you have a cheap meter? Usually the cheaper meters don't have the 20 ohms option.
 
I took it apart with a friend, and in the process forgot to measure the resistance... So i guess im boned now on knowing the vertical and horizontal impedance for it. It has 9 pins though. I'm guess it's an 8 pin since the 9th pin was in the middle of the neck board?

Why do you think you're "boned" knowing them? As long as it's still with you, you can still meter it. Unless I'm completely misunderstanding what you're talking about....
 
Well I'm still new to this monitor stuff. I thought that once you took it apart and it didn't have charge that i wouldn't be able to measure it. Thanks to everyone's help, i was able to figure it all out and still got the information I needed.
 
You might want to research 8liners a bit before you decide to buy from them.. Seems like there are a lot of bad transactions lately with them.. Just buy a rebuilt chassis or have yours rebuilt buy one of the many reputable techs here on the forum..

I'm not a fan of the replacement chassis that are being sold these days.. Better luck with wells, electrohome, etc.
 
I'm still trying to figure out my width problem. If AgeArcade11 has no familiarity with a monitor then you shouldn't buy a universal chassis because your gonna have to wire the stuff yourself and possibly change out some sort of cap if you have a width problem. Which cap? idk I'm trying to figure that out.
 
Well the monitor has bad burn in. And it is showing 97.5 vertical impedance. I'm wondering if that's causing the monitor to wave like a flag and take forever to load an image.
 
idk maybe the yoke is bad? If your gonna buy a new chassis it's best to get a new tube instead of messing with a burned up one and putting in a new chassis.
 
Well the monitor has bad burn in. And it is showing 97.5 vertical impedance. I'm wondering if that's causing the monitor to wave like a flag and take forever to load an image.

Waving like a flag and taking forever to come to full brightness is usually indicative of a power supply issue on the monitor. I'm talking about the monitor's power supply, not the cabinet. What's your B+ voltage reading?
 
b+ is 73. Should be around 123 i think but adjusting does nothing. I think I'm going to scrap the monitor and buy a used one or hook a universal chassis to a tv tube.
 
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