Brand: TOSHIBA
Category: Television
Document Type: Parts/Service
Language: EN
Parts/Service for 20AF46C
Uploaded: Nov. 21, 2025, 6:03 p.m.
Warranty Information
Refer to warranty information specific to the product's region and purchase date.
The document provides detailed service and adjustment procedures for the TOSHIBA 20AF46C Color Television. It includes sections on general specifications, disassembly instructions for components like the anode cap and flat package IC, service mode list, confirmation of hours used, replacing the EEPROM IC, and electrical adjustments such as constant voltage, cut off, white balance, focus, vertical and horizontal positioning, color, and tint. It also details mechanical exploded views and replacement parts lists for both mechanical and electrical components.
Troubleshooting and error codes
| NO. | FUNCTION | RF | AV | CS |
|---|---|---|---|---|
| 02 | H.VCO | 03 | 03 | 03 |
| 04 | AFC GAIN | 07 | 07 | 07 |
| 05 | V.SHIFT | 02 | 02 | 02 |
| 06 | H.SIZE | 01 | 01 | 01 |
| 09 | VS CORRECTION | 34 | 34 | 34 |
| 15 | BRI.MAX | 125 | 125 | 125 |
| 17 | BRI.MIN | 75 | 75 | 75 |
| 19 | CONT.CENT | 50 | 50 | 50 |
| 20 | CONT.MIN | 18 | 18 | 18 |
| 21 | COL.MAX | 90 | 90 | 90 |
| 23 | COL.MIN | 00 | 00 | 00 |
| 25 | SHARPNESS | 40 | 40 | 40 |
| 26 | CB DL | 00 | 00 | 00 |
| 27 | CR DL | 00 | 00 | 00 |
| 30 | PARABOLA | 31 | 31 | 31 |
| 31 | CORNER | 31 | 31 | 31 |
| 32 | TRAPEZIUM | 31 | 31 | 31 |