Read Sony DVP-NW50 (serv.man2) Service Manual online
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3-1. Booting of SYSTEM CONTROLLER
SYSTEM
CONTROLLER
(U1)
FLASH MEMORY
(U4)
SDRAM
(U3)
14.7456MHz
Xtal
(X1)
32.768kHz
Xtal
(Y1)
Please refer to Block diagram on page 26 in the Service manual.
When SYSTEM CONTROLLER (U1) boots up, SYSTEM CONTROLLER
starts to read the operation program from FLASH MEMORY (U4) with data bus
lines.
starts to read the operation program from FLASH MEMORY (U4) with data bus
lines.
DVP-NW50 can hold the customer’s setting of IP address, room name etc.
The information is stored in FLASH MEMORY (U4).
The information can be hold even if the power supply stops to DVP-NW50.
For the communication data processing, SYSTEM CONTOROLLER (U1) uses
SDRAM (U3).
SDRAM (U3).
The operation clock for SYSTEM CONTROLLER is 14.7456MHz (X1).
32.768kHz (Y1) is used for clock function in the standby mode.
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