The C 211 and C 212 are of the Thyristor output chassis type.
I'm guessing that the C 211 is the H.M.V. version in 22" and 26" with a tone control.
The C 212 chassis in 22" and 26" appears to be the Healing version, and without a tone control.


The C 221 and C231 are of the Transistor output chassis type.
The C 221 chassis has a varicap tuner with push button selection and an AFT board.
The C 221 chassis in 22" and 26" appears to be the H.M.V. version, and having a tone control.
The C 231 chassis has a.rotary tuner, and no AFT.

Confused? So am I.

Wayne.

The C211 had an MSP tuner with a separate fine tuning knob.

The C212 had a different tuner (Japanese?) with a concentric fine tuning knob.

The C211/212 model line up was.

Healing Croydon 22", Claremont 26" and Consulate 26"

HMV Diplomat 22" and Ambassador 26"

The C221 and C231 model line up was.

HMV Rangemaster 22" and 26"

IIRC.

Thanks for the information Irext.

The tuners for the C211 chassis are according to my paperwork

1. MSP Tuner EMI part number 224-3081

2. Standard Components Tuner EMI part number 224-3121


All the best.

Wayne.

Thanks all for your input

Given all the differences in these models I want to definitely identify my TV

As per Wayne's comments above can I make the assumption it is a C211

The Schematic that is attached to the back of the set identifies the tuners as the following:

MSP Tuner - EMI Part No 224-3081

Standard Component Tuner - EMI Part No 224-3121

It's definitely a C212 as it has the concentric fine tuning knob with a Standard Component Tuner.

Much better than the fiddley little MSP tuner in the C211.

Hi Wayne

Do you know what the fault is here. ?


Regards

Stephen

Photo uploaded to Post 51.

Yes. The scan rate of your signal source is off frequency.

North-South pincushion correction on those sets is very sensitive to the horizontal scan frequency.

Thanks Ian

Is the North-South Pin Cushion correction an easy or difficult fix on this set ?

The NS pincushion phase is an adjustment but I suspect it's working the way it should.
You could adjust it to suit that signal but then it would be wrong on everything else.

It's the test pattern signal that's wrong.

So how is the test pattern signal fixed ?

What device is generating it?

In the early days of CTV we had Labgear pattern generators that were off frequency out of the box, by design.

I replaced mine with an Arlunya.

Do you have a DVD player or media box that can display still images from a USB? If so you can use my PM5544 test pattern file - Drop me an email (mine's not hidden) and I'll send it to you.

Or download it from the US site. You need the "stretched" one to display properly as 4:3 using the slide viewer function which is always 16:9 regardless of how the box is set up.

Hi Ian

Email sent with Test Pattern on the TV


Regards
Stephen

Was this made with the same device feeding it?

What was generating the colour bars and what was generating the test pattern?

If they were different devices, the coincidence is too great and it may be an adjustment.

If you look at the convergence panel in the back (the long white rectangular panel with lots of little adjustments and coloured diagrams on it), one of the controls will have a picture of a shape that is a bit like what you are seeing.

Adjusting that with the test card displayed (don't touch anything else!!) might well fix it for you.

Hi Ian

My Blu Ray player with a downscaler is what's generating the colour bars.

The Test Pattern is from a separate DVD player.