Sony KV (BA-4C) RGB
Sony BA-4C (Sony KV-20FV10) chassis CRT RGB mod
Coming soon! In the meantime, you can follow the BA-4D tutorial as the chroma and OSD chip and setup are identical.
- KV-20FV10
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
Mux diagram
If you are building your own circuit, this diagram should help. The diagram is for KV-20FV10 or any other BA-4C chassis.
Build your mux board
Below mod uses the RGB mux board. This is optional, but will make your mod easier and stable. You can also create the circuit presented in the schematics above without the board. Please also checkout the precalculated resistor values.
| TV Model | KV-20FV10 |
|---|---|
| CRT inline resistors | 5.6kΩ |
| Chassis | BA-4C |
| Audio LR (R7, R8) | 1kΩ |
| RGB termination (R1, R2, R3) | 75Ω |
| RGB inline resistors (R4, R5, R6) | 1kΩ |
| Diode (R9) | 1N4148 |
| Blanking Resistor (R11) | 1kΩ |
| Add diodes to RGB lines | Yes |