Sharp FO-1470 Service Manual page 57

(2) Panel control block
The following controls are performed by the SCE114.
•
Operation panel key scanning
•
Operation panel LCD display
(3) Mechanism/recording control block
•
Recording control block diagram (1)
OPO[7:0]*
OPERATOR
OPI[3:0]*
PANEL,
LEDCTL*
KEYPAD,
LEDS & LCD
LCDCS*
STRB[3:0]
STRBPOL
THADI
PRINTER DATA
PDAT
CONTROI &
SENSORS PCLK
PLAT
PM[3:0]*
PRINTER &
SCANNER
SM[3:0]*
MOTOR DRIVERS
START
CLK2
SCANNER
CONTROLS &
CLK1
SENSORS
CLK1N
VIDCTL[1:0]
VIN
VREFP
SCANNER
VIDEO
VREFN
PREPROCESSING
IVREFP
IVREFN
SSCLK[2:1]*
SERIAL SYNC SSTXD[2:1]*
PORTS
SSRXD[2:1]*
(2)
SSSTAT[2:1]*
(SSIF)
GENERAL GPIO
PURPOSE I/O
SASCLK*
SYNC/ASYNC
SASTXD*
SERIAL PORT
SASIF SASRXD*
TEST[1:0]
BATRSTN
RESETN
TONE
ALTTONE
TSTCLK
REGDMA
WAITN
SYNC
PWRDWNN
INTPWRDWNEN
XIN
XOUT
SXIN
SXOUT
SR3IN
SR4OUT
IA1CLK
SA1CLK
IACLK
SR1IO
IARESET
SCE114
1-CHIP
FAX ENGINE
SR4IN*
SR3OUT*
A[23:0]
D[7:0]
RDN
WRN
ROMCSN
CS[5:0]N*
WRPROTN
FRDN*
FRWN*
FCLE*
FCSN[2:0]
DEBUGN
VDD
VDRAM
VBAT
VSS
ADVA
ADGA
RTC
CRYSTAL
SYSCLK
CRYSTAL
RXIN
TXOUT
IA
RIN
TXOUT
SPKRH
SPKRL
SECONDARY
IA
RIN
CAS[0,1]N, RASN, DWRN
D7[7:0]
CS3N,
CS4N**
FLASH MEMORY
Fig. 4
5 – 6
UX-510UA
FO-1470U
TELEPHONE
LINE
SPEAKER
LINE
MICROPHONE
INTERFACE
CIRCUIT
ANALOG
SWITCH
DRAM
(OPTION)
NOTES: * ALTERNATIVE GPO, GPI OR GPIO LINES
**FOR SAMSUNG NAND-TYPE FLASH
SPEAKERPHONE ONLY
VOICE OR SPEAKERPHONE