My radio shack 3 in 1 remote doesn't work with my zenth tv/vcr

Three-In-One Easy Remote
(150-1916) Troubleshooting Faxback Doc. # 16723

SCANNING THE CODES

If the 3-in-1 does not control your remote controlled devices when you
first set it up, you probably haven't entered the correct 3-digit codes for
your devices.

You can try all the codes for the brand of your device, but because many
manufacturers make products using several different brand names, you might
want to search the 3-in-1's entire library of codes as follows:

1. Manually turn on the device you are trying to set up.

2. Aim the 3-in-1 at the device.

3. Before you press P, you need to press the device key (TV, VCR OR CBL)
for the device you want to control.

4. Press down and hold P until the red indicator blinks twice.

5. While holding down P, repeatedly press PWR then the desired device
key (TV, VCR, or CBL) until the device responds.

Each time you press PWR then the device key, the 3-in-1 advances to
the next manufacturer's code in its list.

6. When the device responds, release P to lock in the manufacturer's
code.

If necessary, repeat these steps for each device key.

CHECKING THE DEVICE CODE

To determine which 3-digit code the 3-in-1 is set to for a particular
device, press and hold P until the red indicator blinks twice. While
continuing to hold down P, press the device key (TV, VCR, or CBL) then
press 1. The 3-in-1 "blinks out" the number of the first digit. For
example, if the first digit is 2, the red indicator blinks twice. While
continuing to hold down P, press 2 for the second digit, then press 3
for the third digit.

NOTES: If the device code has a 0 in it, the red indicator does not blink
for that number of the 3-digit code.

If the 3-in-1 stops working after you successfully test the control
of each device, or if you are unable to get the 3-in-1 to work at
all, check the following:

Be sure you press the device key for the device you want to
control.

Check and replace the batteries, if necessary.

Confirm that your remote controlled devices are working
properly using manual controls or their original remotes.

If some buttons do not work for your device, you might be able
to scan to a better device code.

If you are still unable to determine the problem, call the nationwide
Universal Remote Control Hot-line at 1-800-955-2599.