Sony UP-CX2, Service Manual

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4-1 (E)
UP-CX2
4-1. System Control
.
DSP (IC101/MA-140 board)
.
Reset IC (IC103/MA-140 board)
.
Flash Memory Memory for program (IC200/MA-140 board)
.
SDRAM Memory for image (IC201 and IC202/MA-140 board)
.
EEPROM Memory for backup of the setting data (IC105/MA-140 board)
.
Thermal head signal control (IC307/MA-140 board)
.
Ribbon information (ribbon type and remaining amount) interface (IC402/MEC-33 board)
.
Ribbon information is recorded in the memory inside a ribbon cassette. This memory board in a
ribbon cassette is connected at the 2-pin contact of CN1 on the CT-266 board.
Power is also supplied from a 1-wire signal (a 1-wire signal and GND).
.
IC101/MA-140 board
_
CN603/MA-140 board
_
FFC
_
CN400/MEC-33 board
_
IC402/MEC-33
board
_
CN403/MEC-33 board
_
CN11/CT-268 board
_
CN10/CT-268 board
_
CT-267 board
_
CN5/ CT-267 board
_
CN2/CT-266 board
_
CN1/CT-266 board
_
Ribbon cassette
4-2. Mechanical Control
Head position control (IC307 on the MA-140 board)
.
DC motor driver IC (IC201/MEC-33 board)
.
DC motor sub-board (SU-114 board)
.
Position sensor board (Photointerrupter/HP-131 board)
Ribbon control (IC307 on the MA-140 board)
.
Ribbon driving (T)
DC motor driver IC (IC203/MEC-33 board)
DC motor sub-board (SU-113 board)
.
Ribbon driving (S)
DC motor driver IC (IC202/MEC-33 board)
DC motor sub-board (SU-115 board)
.
Ribbon start mark detection
Y start mark detection board (Light emitting side: RM-207 board/Light receiving side: RM-208 board)
M.C.L start mark detection board (Light emitting side: RM-209 board/Light receiving side: RM-210
board)
.
Ribbon FG detection (Detection of ribbon winding diameter)
FG sensor board (Photointerrupter/SE-840 board)
.
Ribbon cassette extraction/insertion detection & ribbon information (type name and remaining amount)
interface
1-wire communication interface (IC402/MEC-33 board)
Ribbon cassette contact sub-board (CT-266/267/268 board)
Cutter unit control (IC307 on the MA-140 board)
DC motor driver IC (IC203/MEC-33 board)
Cutter position detection (Switch in cutter unit)
Section 4
Circuit Description