Toshiba CL20F22 User Manual

Explains how to navigate Picture, Audio, Setup, and Option menus using the MENU button on the remote.

Details using the MENU button on the TV to select and adjust menu items.

Describes using the ADV button to select adjustable functions within a menu.

Explains that </> buttons on the TV and remote adjust volume when no menu is displayed.

Details the RECALL button's function to clear on-screen displays instantly.

Procedure to set the TV's signal system (TV, STD CABLE, HRC CABLE, IRC CABLE).

Steps to automatically scan and store active channels into memory.

Procedure to remove specific channels from the TV's memory.

Procedure to add specific channels to the TV's memory.

Detailed steps for adjusting color purity using degaussing coil and yoke positioning.

Instructions for adjusting center convergence using 4-pole and 6-pole magnets.

Steps for adjusting circumference convergence by tilting the deflection yoke.

Procedure to display the adjustment menu on the screen after entering service mode.

How to navigate through adjustable items using CHANNEL buttons.

Instructions for changing data values using VOLUME buttons.

Procedure to exit service mode by turning off the TV.

Steps for initializing QA02 memory after replacement.

How to run the self-diagnostic function to check IC interfaces.

Procedure for adjusting the focus VR control for a clear picture.

Steps to adjust sub-brightness (BRTC) for proper picture retrace.

Procedures for adjusting sub-color (COLC) and sub-tint (TNTC) using an oscilloscope.

Instructions for adjusting horizontal and vertical picture position.

Procedure to adjust the picture height using the HIT address.

Guidelines for checking high voltage levels for safety.

Procedure to check the functionality of the Fail Safe (FS) circuit.

List of replacement capacitors with part numbers and specifications.

List of replacement resistors with part numbers and specifications.