Service Remote Hi. I was going through the service menu on my 44sz8r tv and changed an option by accident and now my remote control doesn't work. The option said something like "CHREM=0" and changed it to "CHREM=1" then the menu came off before I could change it back. As I needed the remote to get into the menu in the first place, i'm just wondering if is there a way to reset the service settings or get in to the menu WITHOUT the remote? or have I had it. I've just read your post about the service remote you got and was wondering if it connects to the back of the set via a Pc serial cable or if it just works by itself. My set is the LG 44SZ8R. Hope you can help. Thanks.

If both your front panel and remote control are disabled, the best option would be to perform a factory reset to restore the TV to its original settings.
To reset the Sharp LC-40LE830U to factory settings:

1. Unplug the TV from the power outlet and wait for at least 60 seconds.
2. Press and hold the power button on the TV for 5 seconds while the TV is still unplugged.
3. Plug the TV back in and turn it on using the power button on the TV itself.
4. Once the TV is turned on, press and hold the "input" and "volume down" buttons on the TV simultaneously for 5 seconds.
5. The TV will then enter the service mode menu.
6. Press the "menu" button on the remote control to navigate through the menu and select "option."
7. Select "factory reset" from the options menu and follow the on-screen instructions to complete the reset.

Note: The factory reset will erase all custom settings, including parental controls, picture, and audio settings.

Press the helpful button and check link below for various models

First power off your TV using the remote, then press following buttons quickly on your TV remote:
Display (or i+) + 5 + Volume Up + Power
It'll show the hidden service menu on your TV screen.
Once you enter into service menu, you can press Menu (or Options) button again on your remote to switch between various service modes such as Digital, Chassis and VPC.
To navigate between available options press 1 or 4 buttons. To change or modify their values press 3 or 6 buttons.
To save your changes, just press Mute + 0 (or Enter) buttons on the remote.
To restore settings to factory defaults, press 8 + 0 (or Enter) buttons.
PS: For some new models the above mentioned method might not work. You can try following key sequence to access service menu in those new models:
While TV is on, press Left + Right + Mute + Center button + Mute + Menu buttons.

Hidden Secret Service Menu Codes for Sony Samsung LG and Philips TV
TV Service Menus Hidden features you didn know about

Hi Ahmed,
Please try putting a fresh EPROM. It may work. I hope you have tried remote options in the service menu.
Good Luck

Press menu-display-power in sequence on the remote control.

try to use TV button

Power problem are cause by many reasons, i.e Power supply circuit, Lamp driver circuit and most often the TV detects an error cause by power surges. To protect TV from further damage most LCD TV have protection circuit built internally. If this is the reason of your LCD TV not powering On, an error data must be reset back to zero.
To change data you will need to access the service mode and change the value of lamp error code to zero (0). Entering service mode requires a trained TV technician. Changing data can cause more problem to your television. If you are not qualified to service your television, please do not go to service menu codes. Moreover below are the process, pls do so at your own risk.
* Unplug the TV * Press and hold the {VOL -} + {CH+} buttons located on LCD TV unit (not in remote control) Note: If above didn't work, alternately use (VOL -) + (TV/AV input) buttons located on LCD TV unit (not in remote control) * While holding the above buttons, plug in the TV. * The TV will turn on with the "K" or "K123" appears om screen. * Use {CH+} {CH -} buttons to go and display the service menu. Note: If above didn't work, alternately use (VOL -) + (CH -) buttons. * Search for "LAMP ERROR menu" from the displayed service menu by using "up or Down cursor" from remote control, or alternatively use "CH - or CH+ to select "LAMP ERROR" * change it to zero (0) value, using {VOL+} or (VOL -) on remote control. * Turn the set off to exit the Service Menu.

The problem might be cause by lamp error, need to access the service mode to change the value of lamp error code to zero (0). Entering service mode requires a trained TV technician. Changing data can cause more problem to your television. If you are not qualified to service your television, please do not go to service menu codes. Moreover below are the process, pls do so at your own risk.

* Unplug the TV
* Press and hold the {VOL -} + {CH+} buttons located on LCD TV unit (not in remote control) Note: If above didn't work, alternately use (VOL -) + (TV/AV input) buttons located on LCD TV unit (not in remote control)
* While holding the above buttons, plug in the TV.
* The TV will turn on with the "K" or "K123" appears om screen.
* Use {CH+} {CH -} buttons to go and display the service menu. Note: If above didn't work, alternately use (VOL -) + (CH -) buttons. * Search for "LAMP ERROR menu" from the displayed service menu by using "up or Down cursor" from remote control, or alternatively use "CH - or CH+ to select "LAMP ERROR" * change it to zero (0) value, using {VOL+} or (VOL -) on remote control. * Turn the set off to exit the Service Menu.

with tv off press and hold both CH- and Vol- at same time untill tv comes on you should now be in service menu.

You need the factory remote only for this model of set!

Contact the service rep for your set and order a new remote.

As for the service mode, most RCA sets require an external service interface.

In many models of sets, the results and commands are in HEX. You will need the service manuals, hardware interface, and instrumentation to do proper setups and adjustments.

As for accuracy of adjustments, from factory these sets were very accurate. If there are changes, this is due to failing parts, and not from adjustments going out. The setups are all uPC controled and are exact. The set should be serviced to make it work properly, and not adjusted to offset faults.


Jerry G.

[1] Press the OK or MUTE button on the front panel of TV and the MUTE button on the remote control at the same time for about 5 seconds.

[2] Press the VOLUME button > button

[3] Press OK or ENTER button
Lamp time will reset - that's it.