Sony Trinitron: How to Troubleshoot a Standby

Written by james clark
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The Sony Trinitron is a line of colour television sets using cathode ray-tube (CRT) analogue technology. Trinitron televisions are equipped with red LED lights on the control panel on the front of the cabinet that flash to indicate "Standby" mode. This usually accompanies a blank screen, a loss of audio or both. "Standby" mode typically means the television is locked up or "frozen"; this can occur following a sudden power outage or electrical surge. Follow a specific sequence of troubleshooting steps to unlock the television from "Standby" mode.

Skill level:


  1. 1

    Turn off the TV if two red LED lights on the front panel begin blinking, indicating the Trinitron is locked in "Standby" mode. Switch on the television by pressing the "Power" button on the front panel or remote control; this may unlock the TV from "Standby."

  2. 2

    Unplug the TV from the electrical socket for at least four hours, as Sony suggests in the Trinitron owner's manual.

  3. 3

    Conduct a hard reset to the Trinitron factory settings by entering service mode. Press the "Display" button on the remote, then press the up arrow on the "Channel" button.

  4. 4

    Press "5" on the remote keypad, then the up arrow on the volume control.

  5. 5

    Press "8" on the remote control keypad, then press "Enter" to complete the hard reset sequence. All personal settings will be erased from memory, and the controls will revert to factory settings.

Tips and warnings

  • If the hard reset procedure does not unlock the television, contact a repair centre.

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