Question about Samsung HC-P4752W 47" Rear Projection HDTV-Ready Television

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Saving settings in service menu

How can you save the manual convergence settings for each input type as the defaults? I am able to enter service mode, put some time into the convergence to get it right and exit the menu. However if I reenter the menu the convergence is not like how I left it, it is back to being as bad as before I started. I'm not turning the TV off between going into the menu or changing inputs or signal type. The "enter" button on the remote is supposed to save any settings while inside the service menu, but this doesn't appear to work. The samsung auto convergence is the worst thing I've ever seen on a TV. Why they didn't put a decent manual self focus on this TV is beyond me. If I could get the convergence settings to save for each signal type this TV will last for a few more years.

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Re: Saving settings in service menu

Hi, I have a similar problem too on the SP47Q7HF. That one the lower level to match the red, and blue. Turn off the tv, and then restart, and still the colour runs off. Do you have a manual on the service mode adjustment? Or where to upload this info? I would like to try and adjust it. Thks

Posted on Sep 29, 2007

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How to reset factory defaults

I will presume you have the model listed here and have the Mitsubishi remote in working condition.

These sets have 3 hidden menus: Adjustment (stay out of that one), Convergence, and the OPTION MENU.

The option menu is the one you would want--it requires that you turn set on--enter a 4 digit number that is model specific.

In the option menu you can do a HARD reset which puts everything except convergence back to factory (that is stored in another area).

The reset puts all settings back to factory--set will come on once done on channel 3 in air band etc.

Let me know model number here is or is not correct and I will give you a link to the service manual with page number to look at---explains how to do the reset. Not a bad idea to save that manual as it contains all kinds of good info on this set.


May 26, 2012 | Mitsubishi WS-65411 65" Rear Projection...

1 Answer

"Perfect Focus" problem on Samsung HCN4727W

You have a bad sensor, a bad digital convergence board, or the new board is not working correctly. I would start by swaping out the convergence board or exchange it for another one. Good Luck

Nov 08, 2007 | Projection Televisions

1 Answer

Mitsubishi VS-50803 Big Screen TV - Trying to hook up an HDTV cable box, I was told to hit: menu, 1, 3, 7, 0 - to get to the service menu and switch DTV over to HD and that would solve my no signal...

First please confirm actual model number on rear of set.

Something is not right here, I am looking at Mitsubishi material downloaded in my computer; shows all codes for sets up to 2004. VS-50803 is a VZ6 Chassis made in 1998 and I doubt it is HD set, if it is one of the early ones it will have beneath the HD input vert sync and Horz sync---those required a special box from Mitsubishi etc.

Set has 3 hidden menus:
1. Option menu (for hard reset)= Menu 1,3,7,0 enter
2. Circuit adjust menu= Menu 2,3,5,7 enter
3. Convergence adjust menu= Menu, 2,3,5,9,enter (#4,5,6 on remote then change modes)

Does the DTV input have the two vert, horz jacks as well?

First is the Option menu is really only for a hard reset of the entire set, if you engaged it you may have de-converged the set.

The adjust menu is for height, width etc

The convergence menu is for convergence.

If you did something and did not save it, unplugging set should put it back to before what you did.



Oct 08, 2011 | Projection Televisions

2 Answers

We can set the convergences great but after about 10 to 15 minutes ithe reds lines start moving a little again will not stay in position. It's a widescreen Mitsubishi rear projection tv ws-55857.

The problem - you're setting the convergence settings, but you're not saving them, you're
simply exiting the menu screen. Be sure to save your convergence setting for each
of the three colors. It sounds like you're setting RED last, and not saving its convergence setting,
whereas the GREEN & BLUE are holding their convergence settings, since you're saving them
correctly before proceeding on to RED....

Mar 15, 2011 | Mitsubishi WS-55857 55" Rear Projection...

8 Answers

Convergence problem

reset your tv with defaults settings.f chip and resstor blown then it need change.

Jan 06, 2009 | Philips 55PP9401 55" Rear Projection...

1 Answer

Sony KP-51HW40 Convergence issue

Can you adjust the convergence by the convergence menu without going through the service menu? The settings through the convergence menu should save automatically. Have you replaced the convergence ICs? If so the settings should save, if not the D board will need to be replaced or at the very least rebuilt. Let me know if you need further assistance with this issue.

Apr 10, 2008 | Sony KP-51HW40 51" Rear Projection...

6 Answers

Service Manual for sp43t8-hex/shi - convergence problem

My sp43w6hpx needs the red pulled back in any one help with service manual

Dec 21, 2007 | Samsung HCN436W 43" Rear Projection...

1 Answer

Overscan Problem

Switch to that input, and run the Auto Convergence for that input (Setup menu on the TV, Convergence). Convergence settings save for that particular input.

Dec 06, 2007 | Projection Televisions

1 Answer

Samsung HC-P4752W No Color

Do not automatically think you need to go into the service menu. I bet you 100 to 1 that you pulled out a plug or a connector somewhere OR one is not seated into the plug all the way. If the set worked with color before you messed with it, there is not a problem in the service menu. The service menu is not the fix all thing. it is there to make fine alignments and adjustments, and as a matter of fact, messing with a service menu even with the service manual is very dangerous. I have seen peeps ruin TV sets by messing around with the service menu alignments. STAY out of these alignments. they are not going to fix a problem that all of a suddenly comes up. Repair the problem in the circuit first. Good Luck

Sep 18, 2007 | Samsung HC-P4752W 47" Rear Projection...

3 Answers


Touch-up Convergence adjustments Enter the Digital Convergence Mode (DCM) by entering 0-6-2-5-9-7-(Status or Index) on the Remote control. The following menu will appear: Select an active channel or Aux Input. A signal must be applied to the set when performing convergence. If any Customer Adjustments need to be made, the Menu button can be used to toggle between the Customer Menu and DCM. The MPOSD ADJUST is used to center the Customer Convergence grid. A highlighted cross will appear along with the Convergence alignment grid. The highlighted cross should be centered onto the center of the Convergence grid. To perform a Touch Up Convergence, highlight SELECTION and press the right cursor button on the remote. The following menu will appear: Selections STORE, RESTORE FACTORY, and RESTORE DEFAULT are not shown after selecting SELECTION. Press the cursor down button on the Remote for these selections to appear. RESTORE FACTORY loads Convergence defaults from the Factory Loaded section of the Convergence Memory IC. RESTORE DEFAULT loads Convergence defaults from the sets software. To perform a Touch-up Convergence: 1. Enter the Convergence Mode and select RED TO GREEN or BLUE TO GREEN. Do not select GREEN (Green Geometry) without placing a Template over the screen. To perform Green Geometry, refer to the Complete in-depth Convergence. 2. Use the Cursor buttons on the Remote to Navigate from one adjustment point to another. Press the Status or Index button on the Remote to select ADJUST. Use the cursor buttons on the Remote to adjust the Red to Green or Blue to Green. Press the Status or Index button again to navigate to the next adjustment location. 3. After Convergence alignments are complete, press the Menu button on the Remote to return to the SELECTION menu. 4. Highlight the STORE selection and press the right cursor key on the Remote to save changes. 5. Use the GREEN TO RED or GREEN TO BLUE selections to perform convergence when the Green CRT has been replaced.

Aug 18, 2007 | Philips 60P8342 60" Rear Projection...

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