Samsung lcd tv service manual

perfect focus is based on service mode convergence. FActory setting as it were. the set needs to converged in service mode then these values stored then it should work

that model number is missing a few more letters and numbers but you will find it here /;
http://www.samsung.com/us/support/downloads select lcd tv and then look rot the exact model number on back of tv on silver foil paper .

I don't have service mode specifications but I do have a Samsung and looked around for how to get it in service mode some time ago because the HDMI cables somehow disconnected themselves a lot. Thought it was an electronic problem but it turned out to be a parenting problem instead SO I have never used this information and can not vouch for it. I cut and paste it from a note I copied from a forum entry to use at your discretion:
First post:
To enter "Service Mode" Press the remote - control keys in this sequence :
From Standby Info-Menu-Mute-Power On
- The buttons are active in the service mode.
Remote - Control Key : Power, Arrow Up, Arrow Down, Arrow Left, Arrow Right, Menu, Enter, Number Key(0~9)
Careful though there are things you shouldn't touch in this menu.

avforums.com/forums/lcd-led-lc­d-tvs/601553-samsung-service-m­enu-research.html

Another post:
Method 1
Put TV on standby and then push in series these buttons on the remote: 'info, menu, mute, power' the TV will then turn itself on and display a menu.
Method 2
Turn the power off. On the remote, press Mute followed by 1, 8, 2, Power in sequence.
Method 3
With the TV in standby, press the {DISPLAY} {P.STD} {MUTE} {POWER} on the remote.
Method 4
With the TV in standby, press the {SLEEP} {P.STD} {MUTE} {POWER} on the remote.
Method 5
With the TV in standby, press the {DISPLAY} {MENU} {MUTE} {POWER} on the remote.
Method 6
With the TV in standby. On the remote, press Mute followed by 1, 1, 9, Enter in sequence.
Samsung LCD Monitor Service Menu Instructions

End quote.
Good luck. Just a basic suggestion you probably don't need: keep track of any changes made by writing them down so you can put it all back if you have to.

To reset it, you have to enter its service mode option. To get it, you have to download its repair manual. User manual will not have this detail. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy. Pull up older posts. Surf the site with patience. Do a search by type in the brand name of your device at its search box and press "Enter".
http://electronicshelponline.blogspot.com/
Service mode entry, adjust and exit procedure to many popular brand TVs are given. Never forget to exit the service mode, after all adjustments have been done.

Hi.

The TV starts in forced standby. The state is also called "Protect Mode". Protect mode kicks in whenever an internal fault is detected. The error is detected by controller circuit and the PSU is forced in standby mode, shutting down all voltage lines apart 5VDC to keep standby on.

First try disconnecting the power cord for ten minutes, reconnect after ten minutes and restart the TV with no device connected.

If that does not help it means that there is an internal fault and that the TV must be tested and repaired replacing the defective part.

The defective part is usually the PSU. Among components that fail quite commonly there are the capacitors on the power board. If the capacitors look swollen or if there is trace of damage on PSU board, then the affected parts must be de-soldered and replaced. If there is no evidence of damage at a glance the parts must be tested using a multimeter and following schematics from service manual.

If you need to call a technician use the phone number listed on the owners manual or on the manufacturer support web page.

Regards.

Ginko

hi,

your lcd is in test mode. you may try off the power. press and hold menu + source + power on.

this should go back to normal mode.

in order to reset a locked out TV you must contact Samsung technical support, they are the only ones that give you a override code to reset the lock out. the number is listed in your owners manual.

It is possible the problem is caused by a wrong option byte setting in the service menu. The correct setting depends on the type LCD panel used in that version. Version number can be found on a sticker on the right side of the television. A bad main board or TCON board can also cause that type of problem.

1. Turn off the TV
2. Press "info" then "Menu" then "mute" and then "Power" on your remote (As fast as possible).

The TV will now start up in Service Mode

Breinholm / Denmark