Toshiba 24W33B, Service Manual

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ST92195
The ST92195 is a member of the ST9+ family of micro-controllers, completely developed and produced by
SGS-THOMSON Microelectronics using a proprietary n-well HCMOS process. The nucleus of the ST92195 is the
advanced Core, which includes the Central Processing Unit (CPU), the ALU, the Register File and the interrupt controller.
The Core has independent memory and register buses to add to the efficiency of the code. A set of on-chip peripherals
form a complete sys-tem for TV set and VCR applications:
– Voltage Synthesis
– VPS/WSS Slicer
– Teletext Slicer
– Teletext Display RAM
– OSD
Additional peripherals include a watchdog timer, a serial peripheral interface (SPI), a 16-bit timer and an A/D converter.
STV224X Video processor:
The STV2246/2247/2248 are fully bus controlled ICs for TV including PIF, SIF, luma, chroma and deflection processing.
Used with a vertical frame booster (TDA1771 or TDA8174 for 90° chassis, STV9306 for 110° chassis), they allow the
design of multi-standard (BGDKIMNLL, PAL/ SECAM/NTSC) sets with very few external components and no manual
adjustments.