Connection Demo
Overview
VolToolV2 provides multiple interface options to accommodate different TCON logic board connection requirements. Choose the appropriate connection method based on your target logic board's interface type.
Interface Pinout
Top I2C Interface (2K / 4K)
| Pin | Signal | Description |
|---|---|---|
| 1 | SCL | I2C Clock Line |
| 2 | SDA | I2C Data Line |
| 3 | GND | Ground |
| 4 | 3.3V | Reference Power (required for some logic boards) |
The 2K (left) and 4K (right) interfaces share the same pinout, differing only in connector size for different resolution logic boards.
Probe Interface
| Pin | Signal | Description |
|---|---|---|
| 1 | SCL | I2C Clock |
| 2 | SDA | I2C Data |
| 3 | MOSI | SPI Master Out / Slave In |
| 4 | MISO | SPI Master In / Slave Out |
| 5 | CS# | SPI Chip Select |
| 6 | GND | Ground |
Solder Pad Interface
The solder pad interface exposes core signals for flying-wire connections:
- I2C: SCL, SDA
- SPI: SCK, MOSI, MISO, CS#
- Power: 12V, GND
- Debug: SWDIO, SWCLK
Connection Scenarios
Scenario 1: Standard PMIC Programming
Connect to the PMIC chip on the logic board via I2C:
- Identify the PMIC model on the logic board (e.g., RT6943A)
- Connect SCL, SDA, and GND using the appropriate interface
- Power on the tool and select Standard PMIC
- Read registers and proceed with voltage adjustment
Scenario 2: CS Series Flash Programming
Connect to the QSPI Flash on the TCON board via SPI:
- Confirm the Flash chip model (PY25Q128 or compatible)
- Connect SCK, MOSI, MISO, CS#, and GND using probes or a socket
- Power on the tool and select CS Series
- Read Flash firmware and parse PMIC configuration
Scenario 3: Sony ID Copy
Connect to the Sony original logic board for encrypted ID reading:
- Connect the logic board using the appropriate interface
- Power on the tool and select Sony ID Copy → Read ID
- After reading, connect the target board for writing
Connection Precautions
- Common Ground: All communication methods require a shared ground — ensure reliable GND connection
- Voltage Level: The target logic board I2C/SPI level is 3.3V, directly compatible with the tool
- Reliable Contact: When using probes, ensure good contact to avoid signal glitches
- Hot Plugging: It is recommended to connect/disconnect cables while the tool is powered off
- ESD Protection: Take anti-static precautions, especially in dry environments