Zenith H19F34DT Series Service Manual Download Page 10

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SR25-3828VD0171B

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CL - OVERVIEW

LT-2000 & 2002 CLONE PROGRAMMER

Using the on-screen menu, select a memory or return
to the main selection menu. Then press ON/OFF, POWER,
or ENTER to activate the selection.

The next screen allows for one last opportunity to check
the versions of TV and clone setups. Press ON/OFF or
POWER to activate the teaching cycle, or any other key
to return to the selection menu to make other choices.

Once a process has begun, the TV screen will display
the “TEACHING IN PROGRESS” message. Please wait for
the process to complete. When the TV screen displays
“TEACHING COMPLETED”, press any key to end the
teaching process and return to the clone selection menu.

SET CLONE CLOCK FROM TV

To set the real-time clock in the LT2002, select “SET
CLONE FROM TV” and then press ON/OFF, POWER, or ENTER
to copy current TV time to the clone clock. Alternatively,
use the TV front panel CHANNEL UP or CHANNEL DOWN
keys to highlight the choice. Then press ON/OFF, POWER,
or ENTER to activate.

This process will return the LT2002 to the sign-on screen
to display the clone and TV clock settings. Press a key
to go to the clone selection menu and perform other
functions, or simply disconnect if the time setting was
the last task.

SET TV CLOCK FROM CLONE

To set the real time clock in the, select “SET TV CLOCK
FROM CLONE” and then press ON/OFF, POWER, or ENTER
to copy current LT2002 time to the TV clock.
Alternatively, use the TV front panel CHANNEL UP or
CHANNEL DOWN keys to highlight the choice. Then press
ON/OFF, POWER, or ENTER to activate.

DISPLAY TV SETUP

Select “ DISPLAY TV SETUP”, and then press ON/OFF,
POWER, or ENTER to begin the teaching process.
Alternatively, use the TV front panel CHANNEL UP or
CHANNEL DOWN keys to highlight your choice. Then press
ON/OFF, POWER, or ENTER.

The TV screen will display the items in the service menu
setups. Use this function to quickly check the TV for

correct setup. Press any key to clear display and return
to the clone selection menu.

DISPLAY CLONE SETUP

Select “DISPLAY CLONE SETUP” and then press ON/OFF,
POWER, or ENTER to begin the teaching process.
Alternatively, use the TV front panel CHANNEL UP or
CHANNEL DOWN keys to highlight the choice, then press
ON/OFF, POWER, or ENTER to begin.

The TV screen will display the memory selection menu.
Select the desired memory number, and then press ON/
OFF, POWER, or ENTER to display the contents of the
selected memory. Alternatively, use the TV’s CHANNEL
UP or CHANNEL DOWN keys to highlight the choice, then
press ON/OFF, POWER, or ENTER to begin.

The TV screen will display items in the factory menu
setup. Use this function to quickly check contents of a
particular clone memory for correct setup. Press any
key to clear the display and return to the clone selection
menu.

OPERATION NOTES

Disconnect the LT2002 from the TV set when the desired
task has been completed. Disconnecting the clone
automatically switches it off. The real time clock
continues to run when the main circuits are switched
off.

After replacing exhausted batteries, or if the programmer
behaves strangely after a static shock, use a paper clip
or similar instrument inserted through the small hole
marked “RESET” to activate the internal reset switch
and restore normal operation. After reset, check the
real-time clock setting. It may be necessary to reset
the clock from a TV programmed to the correct time.

The specific microprocessor used in any TV set may be
determined by activating the service menu. The
microprocessor part number appears at the top of the
screen with the service menu is activated. Processors
before the 221-01006 has limited screen display
capability. They cannot display entire screens as shown
in the quick setup instructions accompanying the
LT2002 programmer. Use the printed menu illustrations
on the quick setup sheet as an aid in making
programming choices.