Manual for 20A23

Manual for 20A23

Brand: TOSHIBA

Category: Television

Document Type: Manual

Language: EN

Uploaded: Nov. 21, 2025, 6:28 p.m.

Warranty Information

Limited warranties of 90 days labor, 1 year parts, and 2 years picture tube for new units.

Basic Operation

Powering On/Off: Press the POWER button on the TV or remote.

Volume Control: Use the VOL +/- buttons on the TV or remote.

Channel Selection: Use CH +/- buttons or Direct Channel Selection (0-9) on the remote. For CABLE mode, specific input methods apply (see page 7).

Menu Navigation: Press MENU, then use SET +/- to navigate and ENTER to select options like Picture, Language, V-Chip, Lock, and On Timer.

Picture Adjustments: Access PICTURE menu to adjust BRIGHTNESS, CONTRAST, COLOR, TINT, and SHARPNESS.

Closed Captions: Press CAP/TEXT to toggle between normal TV and caption modes.

V-Chip: Set parental controls via the V-CHIP SET menu. Requires a password.

Sleep Timer: Program the TV to turn off automatically using the SLEEP button on the remote.

Troubleshooting and error codes

SYMPTOMSPOSSIBLE SOLUTIONS
TV does not operate• Make sure the power cord is plugged in. • Try another AC outlet. • Power is off; check fuse or circuit breaker. • Unplug unit for an hour, then plug it back in.
Poor sound or no sound• Station or CATV experiencing problems; tune to another station. • Check sound adjustments (VOLUME and MUTE). • Check for sources of possible interference.
Poor picture or no picture• Station or CATV experiencing problems; tune to another station. • Make sure channels are set into memory. • Check antenna or CATV connections; adjust antenna. • Check for sources of possible interference. • Check picture control adjustments. • Press CAP/TEXT to turn off the Closed Caption mode.
Poor reception on some channels• Station or CATV experiencing problems; tune to another station. • Make sure channels are set into memory. • Station is weak; adjust antenna to receive desired station. • Check for sources of possible interference.
Poor color or no color• Station or CATV experiencing problems; tune to another station. • Make sure channels are set into memory. • Check picture control adjustments. • Check antenna or CATV connection. Adjust antenna.
No CATV reception• Check all CATV connections. • Set TV/CABLE menu option to the CABLE mode. • Station or CATV system problems; try another station.
Horizontal or diagonal bars on screen• Check antenna connections; reorient antenna. • Check for sources of possible interference.
No reception above Channel 13• Make sure TV/CABLE menu option is in the appropriate mode. • If using antenna, check UHF antenna connections.
No Remote operation• Batteries are weak, dead or inserted incorrectly. • Remote is out of range; move closer to TV (within 15 feet). • Make sure Remote is aimed at sensor. • Confirm there are no obstructions between the Remote and the TV. • Make sure the power cord is plugged in.
TV shuts off• No broadcast on station tuned. • Sleep Timer is set. • Power interrupted.
Closed Caption is not activated• TV station experiencing problems or program tuned is not closed captioned. Try another channel. • Check CATV connection or VHF/UHF antenna, reposition or rotate antenna. • Press CAP/TEXT to turn on the closed caption decoder.
Black box on screen• Press CAP/TEXT to turn off the Closed Caption mode.
Display is not shown in your language• Select proper language in the menu options.
Picture wobbles or drifts• Station or CATV experiencing problems; tune to another station. • Make sure channels are set into memory. • CATV company is scrambling signal. • Adjust antenna.
Privacy Policy