Finding a specific service manual can be difficult because these "universal" boards are manufactured by third-party suppliers for multiple TV brands. This guide provides the essential technical information typically found in a service manual to assist with repairs and troubleshooting.
No response to 03 (read holding registers). Manual solution: Section C, Note 7 – The TPMS3458PC757 uses a non-standard slave ID of 247 , not 1 . Additionally, the manual states that the RS-485 termination resistor must be 120 ohms, but only on the last device on the bus. tpms3458pc757 service manual
The very first page of the TPMS3458PC757 service manual (Section 1.2) highlights a critical point: . Finding a specific service manual can be difficult
The service manual for this device will explicitly detail these specifications. Without the manual, you risk applying incorrect voltage levels, using incompatible seals, or misinterpreting LED status codes. Manual solution: Section C, Note 7 – The
This guide is for informational purposes only. Always refer to the official TPMS3458PC757 service manual for safety warnings, pinout voltages, and factory reset sequences.