# Disney M70 CRT RGB mod

This tutorial covers the RGB mod for the below models

  • Disney Winne the Pooh - DT1350-RWP (AUG 2005)

# CRT safety

DANGER

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.

READ THIS BEFORE CONTINUING

# Composite input

Composite input on this TV looks really good. While RGB definitely takes the quality up a notch, be careful not to make any un-unecesary modification to this CRT as these CRTs are becoming rare.

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# 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

# Disney Winne the Pooh - DT1350-RWP

  • Manufactured: August 2005
  • Model: DT1350-RWP
  • NTSC, 60 Hz, 54W
  • Chassis: M70
  • Tube: 37SX110Y22-DC15

# Service manuals

# Schematics

img

OSD Chip img

# Mux diagram

If you are building your own circuit, this diagram should help

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# Calculating the RGB external resistor value

Since this CRT didn't come with grounding resistors, I chose to use the same resistance value that was present in the inline circuit ~1 kohm. I will be trying with different resistance values in future.

# 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: Connect RGBs, Blanking and Audio

Since there are no components to remove from the board, we can get the wires connected to the board. The mod on the CRT is fairly straight forward.

Close up of RGB and Blanking img

Close up of Sync and Audio img

All wired up! img

After attaching the bottom black panel to the board img

# STEP 2: Build your mux board

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.

Buy your RGB mux board

TV Model M70 Notes
Audio LR -- 1 kΩ resistor present on the board
RGB termination 75Ω
RGB inline resistors 1kΩ
Diode 1N4148
Blanking divider 2.2kΩ to generate 3.3V for blanking (R10)

img

Buy your RGB mux board

# STEP 3: Attach the female SCART connector to TV

Inside the CRT back chassis img

Back of the CRT img

# Getting into service menu

While pressing the Volume down on the CRT, press CH 1/2 then Display then CH 1/2 then Display on the remote to get into service mode (aka D Mode).

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Once in D Mode, press 3 to enter adjustment menu. Here you can navigate using CH +/- and adjust using VOL +/- buttons.

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To write values press CH 1/2 button on the remote

# Pictures of the mod

# Games

NES - Adventure Island img

SNES - Super Mario World img

SNES - Super Mario World img

SNES - Mega Man X img

SNES - Mega Man X img

SNES - Mega Man X (close up) img

PS1 - Boot img

# Patterns

Text - FXPakPro img

Convergence - 240p test suite img

Grid (Before the HPOS shift on service menu) img

Grid (After the HPOS shift on service menu) img

Monoscope (After the HPOS shift on service menu) img

SMPTE Colors img

OSD Overlay img

OSD Overlay img

# Misc pictures

Board top view disney winnie the pooh crt board

Jungle img

Tube - 37SX110Y22-DC15 img