System Overview

U6(Jupiter 4E)

-It is a main CPU and an Asic of Jupiter4E which has a CPU core CLK with over 150MHz and a System bus 75MHz.

-It use 3.3V for operation voltage and I/O, It uses 75MHz for system bus CLK, Built in Flash Memory.

SDRAM

- Main memory. SDCLK is 75Mhz.

A3977

- It is an Main motor driver IC and controls the motion of main motor.

Regulator

- It Supplies the core voltage to CPU by converting 3.3V to 1.8V.

EEPROM(U8 : 93C66)

- It is an EEPROM with 12C method.

SMPS connector(CN8)

-It connects SMPS, supplies the power, and delivers the high voltage contol signal, etc. If a harness is not normally connected to this connector, power cannot be supplied.

LSU connector(CN12) - It connects a LSU.

DC Motor connector(CN11)

- It connects an main motor and drive a DC motor.

HVPS connector(CN10) - It connects a HVPS.

DCU connector(CN1)

- It interface a DCU-JIG

USB connector(CN6)

- It interface a the printer.

3-10Service Manual

Samsung Electronics

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Image 24
Samsung ML-2015/XEV manual Sdram