Sharp 36J-S400

# Sharp 36J-S400 CRT RGB mod

This tutorial covers the RGB mod for Sharp 36J-S400.

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

These instructions should also work for other SN-71 chassis based sets. Example:

• Sharp 19L-M100

# Contributors

Thank you to everyone who contributed to this guide:

No contributors listed yet.

# CRT safety

READ THIS BEFORE CONTINUING

# Plan of attack

READ THIS TO PREPARE

# Manuals and Datasheets

• Sharp 36J-S400 Service Manualopen in new window

# Specs

• Year: 1997
• Chassis: SN-71
• Jungle Chip: Sharp IX2573CE
• OSD Chip: IX2947CE
• Screen Size: 36"

# Schematics

IX2573CE Chroma Chip

# RGB mux diagram

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

# Calculating the RGB external resistor value

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

RGB external resistor value = 0.7 x (6800 + 75) - (75 x 5) / (5 - 0.7) = (4812 - 375) / 4.3 = 1030 ohm

~ 1 Kohm resistors should do the job.

# 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 components. RGB resistors to the ground. Measure twice and mark before you remove.

• R803 (2.2 kΩ)
• R804 (2.2 kΩ)
• R805 (2.2 kΩ)

# STEP 2: Connect RGBs, Blanking and Audio

RGB and Blanking

Sync and Audio

Wire Routing

# STEP 3: Build your mux board

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

# 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?

# Remote Control for this TV

# Getting into service menu

While pressing the Vol-up and Ch-up buttons at the sametime, plug the AC cord into a wall socket.

# Pictures

# Reference Photos

See more photos and contributions →open in new window