JVC AV-14F704

# JVC iArt AV-14F704 CRT RGB mod

Please follow the Toshiba 14AF43 RGB mod for any missing details. This JVC iArt series and Toshiba AF series internals (Orion tube/main board) are more or less the same.

This tutorial covers the RGB mod for JVC AV-14F704.

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

# Contributors

Thank you to everyone who contributed to this guide:

• Suntharopen in new window — author

# CRT safety

READ THIS BEFORE CONTINUING

# Plan of attack

READ THIS TO PREPARE

# Calculating the RGB external resistor value

Love it when we can put theories to use! Formula from our theory page!

External resistor value = 0.7 x (4700 + 75) - (75 x 5) / (5 - 0.7) = (3342 - 375) / 4.3 = 690 ohm

This is very close to the grounding resistor value we removed. This should be the case for this particular type of CRTs.

# Service manuals

• JVC AV-14F704 Service Manualopen in new window

# Specs

• Year:
• Jungle Chip: Renesas M61283FP
• OSD Chip: Orion OEC7090A

# RGB mux diagram

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

# Performing the mod

Please follow the Toshiba 14AF43 RGB mod

# Service Menu Settings

# Pictures

📷 See more photos and contributions →open in new window