Finding a "service manual" for the chip itself usually refers to the schematics
Unlike proprietary chips from Samsung or LG, the TSUMV56RUU-Z1 is a generic, mass-produced MStar (now MediaTek) derivative. It powers generic “no name” TV mainboards as well as branded units. Consequently, official documentation is sparse. A dedicated service manual is critical because: tsumv56ruu-z1 service manual
FQFP-128 (Flat Quad Flat Package with 128 pins). Core Architecture: 32-bit single-core processor. Finding a "service manual" for the chip itself