Akai LTA-26C904, Service Manual

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12
166 AVDD3_BG_ASS
167 AVSS_BG_ASS
Analog ground
SVP-CX32LF internal block diagram:
3
．
T5BS4-9999 brief introduction:
T5BS4-9999 is a 16-bit high-speed micro-controller that is used for the control of a variety of
small to large devices. T5BS4-9999 could extend ROM and is an IC with 64 pins and is
packaged in PLCCC. It is the main control IC of the TV and implements I²C bus control of the
overall system.
Main features:
（
900/L1 CPU
）
16bit high speed CPU
（
900/L1 CPU
）
● Minimum time of 148ns in accomplishing instruction fetch
● Build-in 10K RAM
● 16M external extended memory
● simultaneously support 8-/16-bit external data bus
● 8-bit cycle for channel, 16-bit cycle for 1-control
● 1-channel universal serial interface