Sansui TVM1316B

# Sansui TVM1316B CRT RGB mod

Sansui TVM1316B, is a classic 13-inch consumer grade CRT.

One of the standout features of the TVM1316B is its modifiability; it supports RGB input via the 1.3B RGB MUX Kit, allowing users to enhance their visual experience. RGB modification is similar to Toshiba 13A22.

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

This RGB mod turned out well. The tube is plenty bright, and direct RGB input made a noticeable improvement over stock composite video. For how the IR receiver was fixed (and the compatible remote that got the set working again), see the Pictures section below.

Please note that not all versions of Sansui, Toshiba, Panasonic's are RGB moddable, even though they might look alike from outside. Later models use a single-chip. And in the absence of OSD chip, RGB mod is not easily possible. These sets exhibit a slight ringing interference in certain scenes. However, it is hardly noticeable.

This mod should also work for the below models

• Toshiba 13A22
• Panasonic CT-13R37S

# Contributors

Thank you to everyone who contributed to this guide:

• Sunthar — author, contributor, RGB mod and pictures

# CRT safety

READ THIS BEFORE CONTINUING

# Plan of attack

READ THIS TO PREPARE

# Manuals and Datasheets

• Sansui TVM1316B Service Manualopen in new window
• Renesas M61250FP Datasheet (Jungle)open in new window

# Specs

• Manufactured: Thailand (2002)
• Chassis: M3L12
• Tube: Orion A34AGT13X98
• Jungle Chip: Renesas M61250FP
• OSD Chip: Orion OEC7063A
• Screen Size: 13"

# RGB mux diagram

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

# Performing the mod

# STEP 1: Remove the following components

Remove the three 680 ohm, RGB resistors to ground

• R102
• R103
• R104

# STEP 2: Connect RGBs, Blanking and Audio

Sync and ground wires

Blanking and RGB wires

Overall mod

# STEP 3: Build your 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.

Compatible mux boards:

• RGB MUX BOARD KIT 1.4Bopen in new window

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.

SCART connector mounted

How to create and mount a SCART female plug?

OSD mux mod

Full screen blue menu will look garbled. This is a known issue. However, it doesn't affect day-to-day functions.

# Pictures

# Photos by Suntharopen in new window

The remote control receiver on this unit wasn’t functioning. I tried several troubleshooting steps and learned a lot in the process.

# Reference Photos

See more photos and contributions →open in new window