Toshiba CF27F50
Toshiba CF27F50 CRT RGB mod
This tutorial should work for
- Toshiba CF27F50
- Toshiba CL29F50
Warning
I abandoned this RGB mod. There was interference in the RGB signal and couldn't justify the effort needed to fix it. Reddit discussion
CRT safety
Caution
You can die doing this! So read carefully! CRT TV is not a toy. Do not open a CRT TV. If you don't have any prior knowledge about handling high voltage devices, this guide is not for you. CRT TV contains high enough voltage (20,000+ V) and current to be deadly, even when it is turned off.
Plan of attack
Theory
Sometimes it is nice to know the theory behind the mod. I have put this on a separate page. This shows how the various resistor values are calculated.
Service manuals
Specs
CF27F50
- Chassis: TAC 9618
- Manufactured: December 1996
- Power: 93 Watts
- Chroma Chip: TA1223AN
- OSD Chip: TMP87CM34BN
Schematics
Remove resistors RR90, RR91 and RR92. Inject R, G, B signals respectively. Don't remove grounding resistor on the blanking line. See picture aboce to see where to inject the blanking signal.