Orion TV1344A
Orion TV1344A RGB mod
This mod was performed by G=Lock.
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.
Specs
Orion TV1344A
- Manufactured: Made in Thailand, January 2003
- NTSC, 60 Hz 54W
- Tube: Orion A34AGT13X98(L)
- Chroma Chip: M61206FP
- OSD Chip: OEC7073A
Service manuals
Schematics
Get hold of the schematics for your TV. Understand where the RGB and Fast Blanking signals go from OSD to the Jungle (Chroma) chip.
STEP 1: Remove the following components
Remove the three 680 ohm, RGB resistors to ground
- R102 (680Ω)
- R103 (680Ω)
- R104 (680Ω)
STEP 2: Connect RGBs, Blanking and Audio
STEP 3: Build your mux circuit
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 | TV1344A |
|---|---|
| CRT inline resistors | 4.7kΩ |
| Add diodes to RGB inline? | No |
| Add diodes to blanking on chassis? | No |
| RGB termination (R1, R2, R3) | 75Ω |
| RGB inline resistors (R4, R5, R6) | 680Ω |
| Audio LR (R7, R8) | 1kΩ |
| Diode (R9) | 1N4148 |
| Open (R10) | -- |
| Blanking Resistor (R11) | 4.7kΩ |
STEP 4: Attach the female SCART connector to TV
Creating a SCART cutout and mounting it is an art. I have a dedicated section for it.
How to create and mount a SCART female plug?
Pictures
Games
Set
