# Panasonic CT-9R10 CRT RGB mod

This mod should also work for the below models

  • Panasonic CT-9R10CT
  • Panasonic CT-9R11A

# 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

# 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

# Panasonic CT-9R10CT

  • Manufactured: August 1995
  • NTSC, 60 Hz
  • Chassis: ANDP243
  • Tube: Matsushita MTG A23KQU22X
  • Jungle: Panasonic Jungle AN5163K

# Service manuals

# Schematics

Get hold of the schematics for your TV. Understand where the RGB and Fast Blanking signals go from OSD to the Jungle (Chroma) chip.

img

# CT-9R10CT

Checking the blanking signal with the voltage divider, around 3.4V is being sent to the jungle chip for blanking. Also on the RGB lines around 1.37V is being sent to the jungle chip. This is an unconventional voltage.

img

# Service Menu

# Service Menu Default values

  • B0 - 40
  • B1 - 33
  • B2 - 33
  • B3 - 25
  • B4 - 8
  • B5 - 5
  • C0 - 6 (H position) > 10
  • C1 - 121 (R cutoff)
  • C2 - 138 (G cutoff)
  • C3 - 70 (B cutoff)
  • C4 - 64
  • C5 - 85