Panasonic PT51DX80A convergence touch up

[[email protected]]

Hi Folks;

Convergence ICs have been changed. They are working but now the R & B
vertical lines a are split away at the sides. Nothing else is affected.
Geometry is good. It's not off that much and is probably due to slight
differences in the HF response of the ICs.

I found out how to get into the service menu but I can't seem to find
the convergence. Can someone point me the way here ? I can get into the
rest of it, and I don't intend to touch anything there because without
a manual, I have no idea what's what. This thing ranks about dead last
in user friendliness IMO.

So if someone could tell me the following:

How do I get to the convergence ?, and is it cursor based ? If not,
what are the parameters for red and blue H width and linearity ? I'm
sure these are the only controls I need. It's off about ½" at the
extreme sides. There is no other error on the screen. I read somewhere
that you use the mute to change from the move to adjust mode which
implies that it is cursor based. If it is cursor based, how do I switch
colors ? The rest I think I can handle.

Please don't tell me to get the manual, that's what I'm trying to
avoid. I don't want to wait for one and have a fixed unit in the shop,
the cost of the manual is not at issue.

Thanks in advance.

JURB

 

[Art]

Here Goes: From the Service Manuel [less pictues].
1: Enter Serviceman Mode
2: Press 3 to display GREEN Raster
3: Press 0 [Zero] then SWAP to display test position adjustments
4: Press 5 to show pattern super imposed
5: Ch +-, Vol +- adjust cross hair to centre of pattern
6: Press 5 to exit superimposed pattern mode
7: Press TV/Video button to display data phase adjustment mode
8: Vol +- to make curve smooth and symmetrical {curve in cursor display}
9: Press 7 then SWAP to Store data
10: press 0 [Zero] to go back to Convergence Adjustment Mode
11: Pressing TV/Video Button changes from Point-Line-Easy2-Peri then repeats
12: In Point modes each cross hair location may be adjusted.
13: Press 7 and SWAP to Store Data
14: Press 3 twice to switch to RED Raster
15: Press TV/Video to switch to Line Mode
16: Adjust lines working from centre to outside edges
17: Press TV/Video and select Easy2 Mode
18: Adjust each piont using Ch +- and Vol +-
19: Press TV/Video again to select Point Mode
20: Adjust each point again
21: Press 7 and SWAP to Store Data
22: Press 3 twice toselect BLUE Raster
23: Repeat previous details.
24: When happy with registration press 7 and Swap to Store Data
25: Exit using POWER and SWAP buttons.

Hope this helps, otherwise e-mail me. Art

Hi Folks;

Convergence ICs have been changed. They are working but now the R & B
vertical lines a are split away at the sides. Nothing else is affected.
Geometry is good. It's not off that much and is probably due to slight
differences in the HF response of the ICs.

I found out how to get into the service menu but I can't seem to find
the convergence. Can someone point me the way here ? I can get into the
rest of it, and I don't intend to touch anything there because without
a manual, I have no idea what's what. This thing ranks about dead last
in user friendliness IMO.

So if someone could tell me the following:

How do I get to the convergence ?, and is it cursor based ? If not,
what are the parameters for red and blue H width and linearity ? I'm
sure these are the only controls I need. It's off about ½" at the
extreme sides. There is no other error on the screen. I read somewhere
that you use the mute to change from the move to adjust mode which
implies that it is cursor based. If it is cursor based, how do I switch
colors ? The rest I think I can handle.

Please don't tell me to get the manual, that's what I'm trying to
avoid. I don't want to wait for one and have a fixed unit in the shop,
the cost of the manual is not at issue.

Thanks in advance.

JURB

 

[[email protected]]

Thanks Art;

I tried searching around the web after I tried your steps, actually
Panasonic's steps. FYI they omitted the fact that you press mute to
toggle between the move and adjust modes. Still omitted is the exact
way to get into the convergence mode. No matter what subcategory I'm
in, the number buttons still change the channels. This is of course
frustrating.

If you've actually done convergence on one of these, can you tell me
just how to get to that crosshatch screen ? If not I might ship the set
minus 50 bucks or something and order the manual, then I can do the
touchup in the customer's home.

Chalk this up to another thing I don't like about Panasonics.

BTW, I would email you but I'm not getting it off this Google groups
thing. Are you still stubby @ that com thing, dot net ?

Thanks again, but I'm still missing a piece of the puzzle here.

JURB

 

[Art]

plotsligt@comcast will follow my tracks. post me !!

 

[Art]

Jurb: Check if the second step had been obmitted in previous notations.

1: Enter Serviceman mode
2: Select V1 DAC
3: Press Volume + - to enter Converence Adjustment Mode
4: Press 3 to select GREEN
5: Press 0 [Zero] then SWAP to show positions
6: Press 5 to show crosshatch pattern
7: Channel +- and Volume +- will change cursor postion
8: Press 5 to exit superimposed pattern
9: Press TV/VIDEO to display DATA PHASE ADJ
10: Volume +- to make curve [cursor display] smooth and symetrical
11: Press 7 then SWAP to STORE DATA
12: Press 0 [ZERO} to return to convergence adjustments
13: Press TV/VIDEO to switch from Point to Line to Easy2 to Peri and then to
Point
Rest is same after pressing # to select the othr colours. Hope this helps.
I've four pages of notes, RE: Convergence, from the manuel if you want to
have me fax to you, E-Mail me at previous address.

 

[[email protected]]

Yup, step 2 was missing.

Thanks again, I'll let you know how it turns out.

JURB

 

[[email protected]]

It's fixed, thanks man.

JURB

 

[Art]

Congrats! These can be a flippin pain.

 

[PTV75230]

Hi Folks;



I found out how to get into the service menu but I can't seem to find
the convergence. Can someone point me the way here ? I can get int
the
rest of it, and I don't intend to touch anything there because without
a manual, I have no idea what's what. This thing ranks about dead last
in user friendliness IMO.

JURB

How did you get into the service mode

 

[Leonard Caillouet]

I would strongly suggest getting the documentation. It is not at all easy
to figure out nor something that one could describe in a paragraph. You can
find the docs on the techdata site.

Leonard

 

[PTV75230]

I would strongly suggest getting the documentation. It is not at al
easy
to figure out nor something that one could describe in a paragraph.
You can
find the docs on the techdata site.

Leonard

PTV75230

[/QUOTE]

What techdata site

 

[Leonard Caillouet]

http://www.techdata-kicksass.net/

It requires a subscription, but with dozens of gigbytes of manuals it is a
good value for most shops.

Leonard


What techdata site?
[/QUOTE]