Toshiba 27AF42

# Toshiba 27AF42 CRT RGB mod

The Toshiba 27AF42 is a highly regarded 27" flat-screen CRT television released around 2002. It is particularly prized for its sharp Japanese made dual-focus tube, excellent component video inputs, and outstanding geometry compared to other flat CRT.

Manufactured by Toshiba in the USA.

Fortunately this CRT is RGB moddable.

View full CRT details and more mod examples →open in new window

# Contributors

Thank you to everyone who contributed to this guide:

• SegaSaturn94open in new window — contributor, CRT specs from CRT Database.

# CRT safety

READ THIS BEFORE CONTINUING

# Plan of attack

READ THIS TO PREPARE

# Manuals and Datasheets

• Toshiba 27AF42 Service Manualopen in new window
• Toshiba TA1310AN Datasheet (Jungle)open in new window

# Specs

• Manufactured: USA (2002)
• Format: NTSC
• Tube: Toshiba A68LUW696X
• Jungle Chip: Toshiba TA1310AN
• Screen Size: 27"
• Weight: 92 lbs
• Inputs: Composite, S-Video, RF, Component YPbPr

# Schematics

# RGB mux diagram

Prepare the mux diagram. If you are building your own circuit, this diagram should help.

Follow the directions below to disconnect the PIP chip and make this in to a direct injection mod.

# Performing the mod

# STEP 1: Remove the following components

• CR01 (0.1 uF)
• CR02 (0.1 uF)
• CR03 (0.1 uF)

This should disconnect the PiP chip's RGB input. Now you can use the pads of this capacitors closer the chroma chip to inject RGB.

# STEP 2: Connect RGB and blanking wires

Inject RGB to the capacitor pads closer the chroma chip. We will be adding the 0.1uF caps to the mux board.

# STEP 3: Connect Sync, Audio and Ground wire

Connect the Sync, Audio Right, Audio Left and Ground wires

# STEP 4: Prepare your RGB mux circuit

This 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 mux calculatoropen in new window to play with your own values.

Buy your RGB mux board kit

# Pictures

See more photos and contributions →open in new window