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Sony (BG-1S) KV-G14P1

Sony (BG-1S) KV-G14P1

Kevin Smith's SectorAbout 6 minCRT RGB modKV-T29SZ1KV-T25MF1KV-T25MN1KV-T29CF1KV-T25SN81KV-G14P1KV-G14S1

Sony (BG-1S) KV-G14P1 CRT RGB mod

The Sony KV-G14P1 is a 14" Trinitron CRT television. This set is marked as the Thailand model in the service manual.

Sony KV-G14P1 RGB image

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

Contributors

Thank you to everyone who contributed to this guide:

CRT safety

Caution

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

Manuals and Datasheets

Specs

  • Chassis: BG-1S
  • Jungle Chip: Philips TDA8366N3D
  • Screen Size: 14"

RGB mux diagram

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

Sony KV-G14P1 RGB MUX diagram

Performing the mod

STEP 1: Remove components

If there are R327, R328, R329 resistors, you should remove them.

If you are going to use the 0.1uF caps on the mux board, you should also remove C319, C320, C321.

KV-G14P1 - C319, C320, C321 removed
C319, C320, C321 removed

STEP 2: R, G, B and blanking wires

Solder the R, G, B and blanking wires

KV-G14P1 - Closeup of blue wire soldered to the C319 pad that is closer to the jungle.
Closeup of blue wire soldered to the C319 pad that is closer to the jungle.
KV-G14P1 - RGB wires
RGB wires

STEP 3: Audio, Sync and Ground wires

KV-G14P1 - Sync, audio and ground. Purple wire is grounded as we are not using an active board like 1.5C.
Sync, audio and ground. Purple wire is grounded as we are not using an active board like 1.5C.

STEP 4: Prepare the 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.

On Sony CRT ChassisKV-G14P1
0.1μF caps replacedNo
Add diodes on chassis RGB lines?No
Add blanking diode on chassisNo
Replace blanking resistor on chassisNo
RGB mux boardKV-G14P1
Mux board RGB termination (R1, R2, R3)75Ω
Mux board RGB input capacitors (R4, R5, R6)0.1μF
Mux board Audio LR (R7, R8)1kΩ
Mux board blanking diode (R9)1N4148
Mux board blanking ground resistor (R10)open
Mux board blanking resistor (R11)1kΩ

Compatible mux boards:

Buy your RGB mux board kit

KV-G14P1 - Mux board configuration
Mux board configuration

STEP 5: Mount SCART port

KV-G14P1 - SCART port mounted
SCART port mounted

Pictures

Mod Photos

RGB modification showcase of a Sony KV-G14P1 CRT.

KV-G14P1 - RGB image
RGB image
KV-G14P1
KV-G14P1 - RGB closeup
RGB closeup
KV-G14P1 - Composite image
Composite image
KV-G14P1 - C319, C320, C321 removed
C319, C320, C321 removed
KV-G14P1 - Closeup of blue wire soldered to the C319 pad that is closer to the jungle.
Closeup of blue wire soldered to the C319 pad that is closer to the jungle.
KV-G14P1 - RGB wires
RGB wires
KV-G14P1 - Sync, audio and ground. Purple wire is grounded as we are not using an active board like 1.5C.
Sync, audio and ground. Purple wire is grounded as we are not using an active board like 1.5C.
KV-G14P1 - Mux board configuration
Mux board configuration
KV-G14P1 - SCART port mounted
SCART port mounted
KV-G14P1 - SCART cable plugged in.
SCART cable plugged in.
KV-G14P1 - Ribbon cable routing
Ribbon cable routing

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