Read Sony DHC-AZ3DM / DHC-AZ7DM / HCD-AZ3DM / HCD-AZ7DM (serv.man2) Service Manual online
5
5
1-2. Start up of USB memory section
USB
memory
controller
(IC801)
System
controller
(IC401)
DISPLAY
SDRAM
(IC802)
FLASH
MEMORY
(IC803)
USB board
RESET signal
Operating
program
program
When the set turns on, System controller(IC401 97pin) outputs RESET signal to
USB memory controller (IC801 72pin ) and FLASH memory (IC803 12pin).
Reset signal is “L” output.
Reset signal is “L” output.
By this Reset signal input, USB memory controller (IC801) boots up.
USB memory controller starts to read the operating program from FLASH
memory (IC803) through the data bus line.
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