Toshiba e-Studio 162 Service Manual page 117

PIN
Signal code
No. Output
106 ESPAGE Input
107 SIN1 Input
108 SIN2 Input
109 SIN3 Input
110
111 KEY IN Input
112 MSUST1 Input
113 Avss
114 GND
115 /SCANSP Output
116 /SCANST Output
117 /TRANSST Output
118 PMCLK Output
119 SPMT3 Output
120 SPMT2 Output
121 SPMT1 Output
122 SPMT0 Output
123 GND
124 GND
125 Vcc
126 PSL Output
127 /CS3 Output
128 /CS2 Output
nCS2
nRD
nLWR
A[9..1]
D[15..0]
nRESET
to SDRAM
64Mb or 128Mb
(Op.400MByte)
to USB I/F
to IEEE1284 I/F
SYNC
LD
to LSU-PWB
LEND
CPUSYNC
Input/
Operating
E-sort control
HC151 select detection
HC151 select detection
HC151 select detection
Pull up
NC
NC
DGND
DGND
Scan STOP signal
Scan START signal
ASIC transfer signal
Polygon clock
ADF motor signal
ADF motor signal
ADF motor signal
ADF motor signal
DGND
DGND
CPU3.3V
Power save LED control
Chip select signal
ASIC chip select
CPU BUS
I/F
JTAG
e-STUDIO162/162D/151/151D ELECTRICAL SECTION 13 - 3
(3) Image process ASIC (HG73C114HF)
a. General
The ASIC is composed of the three blocks: the image process block,
the print control block, and the I/F block.
Image process section
According to the operation mode set by the register set value, the
image data from the CCD PWB are placed under shading, AE pro-
cess, input gamma process, area separation, filter process, resolu-
tion conversion, zoom process, output gamma process, and binary
coding.
Print control section
During copying, image-processed data are outputted to the LSU at
the timing of LSU writing.
I/F section
This section performs DRUM control as image data buffer, image
data send/receive with the OA982, and data send/receive with the
IEEE1284 I/F.
PORT1OUT[15..0]
I/O PORT
PORT2OUT[10..0]
OPE-LATCH
OPE-DATA
LED Driver
OPE-CLK
Control
TMCLK,TMEN
TONER MOTOR
TM,TM-
Control
CCD-RS,CCD-CK1,CCD-CK2
CCD-CP,CCD-SHR
bsmp,vsmp,mclk,OEB
afesen,afesck,afesdi
AFE-DB[7..0]
MIRCNT,MTR-Y1,MTR-PH-1,MTR-I01,MTR-I11,MTR-I21
MTR-Y2,MTR-PH-2,MTR-I02,MTR-I12,MTR-I22
CL
to OPU-PWB
to TONER MOTOR DRIVER
to CCD(SCAN UNIT)
to AFE(SCAN UNIT)
to MIRROR MOTOR DRIVER
to CCFL(Scan UNIT)