RCA E13344

# RCA E13344 RGB mod

This tutorial is meant for those seeking the highest video quality possible from an 13" RCA CRT TV E13344. This set was modified by Brandon Burns.

# CRT safety

READ THIS BEFORE CONTINUING

# Plan of attack

READ THIS TO PREPARE

# 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.

READ THE RGB MODDING THEORY

# Specs

# RCA E13344

• Manufactured: August 2001, Thailand
• NTSC, 60 Hz - 55W
• Chassis: TX808C
• Tube: Chunghwa CPJ370BVBK1S
• Jungle Chip: TA1268N

# Schematics

Prepare the mux diagram. If you are building your own circuit, this diagram should help. Below diagram is for E13320, but it should also work for E13344.

# Performing the mod

Now that you roughly know what needs to be done, prepare for the mod. Place the board on a comfortable place. Make sure you are not putting pressure on the flyback or other components.

# STEP 1: Remove the following components

Remove the following 820Ω resistors that are connected to the ground.

• RR535
• RR536
• RR537

# STEP 2: Add RGB and blanking diodes

This step helps reduce interference. Especially the diode on blanking helps prevent the blanking current from reaching the OSD chip. This is known to cause ringing artifacts.

4 diodes added on chassis by lifting RR38, RR39, RR40, RR41.

It's important to note the resistor leg that needs to be lifted and the direction the diode stripe should point. Ignoring this will result in improper OSD muxing. Refer to the mux diagram above.

# STEP 3: Connect RGB and Blanking

Picture below shows where the RGB and blanking wires should be soldered.

Solder wires

# STEP 4: Audio, Sync and Ground

Composite Sync, Audio and Ground wires should be connected.

Connect both grey and white wires together for mono audio

Solder wires

Full board after the mod

# STEP 5: Build your mux board/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.

Buy your RGB mux board

Buy your RGB mux board

# STEP 6: 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

Back label

Tube

OSD IC

Chroma IC