Read Sharp AR-155 (serv.man13) Service Manual online
PIN No.
Signal name
IN/OUT
Connected to
Description
185
5V
Power
186
IDIN7
IN
CCD PWB (AD
conversion)
conversion)
Image scan data (after 8bit A/D conversion)
187
/SDCLK
OUT
CHECK
Effective image area signal
188
GND
Power
189
SFCLK
IN
Transmitter
CCD drive clock (48MHz), Also used as an internal clock.
190
TEST port 0
IN
AUTO SCAN TEST
High: Normal Low: Test
191
/SYNC
IN
LSU
Horizontal synchronization signal (HSYNC) from LSU
192
/LD
OUT
LSU
Laser drive signal
193
/LEND
OUT
LSU
Laser APC signal
194
USB-EN
OUT
GDI/USB PWB
USB port enable signal
195
1284-EN
OUT
GDI/USB PWB
1284 port enable signal
196
PORTOUT26
OUT
(Not used)
197
3.3V
Power
198
PORTOUT25
OUT
(Not used)
199
PORTOUT24
OUT
(Not used)
200
GND
Power
201
SGS
OUT
Tr array IC
SPF gate solenoid
202
SRRC
OUT
Tr array IC
SPF resist roller solenoid
203
SPUS
OUT
Tr array IC
SPF PU solenoid
204
/READY
OUT
FAX PWB
READY signal (Expansion PWB)
205
OP-LATCH
OUT
Tr array IC
Latch signal for operation circuit. Data latch at LOW.
206
MRPS2
OUT
Tr array IC
Mirror speed control signal. Mirror speed 2 at LOW.
207
MRPS1
OUT
Tr array IC
Mirror speed control signal. Mirror speed 1 at LOW.
208
SPFS
OUT
Tr array IC
SPF paper feed solenoid
209
SMSEL
OUT
Tr array IC
SPF motor/Mirror motor select signal
210
3.3V
Power
211
TC
OUT
Tr array IC
Transfer charger control signal. ON at HIGH.
212
GRIDL
OUT
Tr array IC
Main charger grid control signal. ON at HIGH.
213
GND
Power
214
MC
OUT
Tr array IC
Main charger control signal. ON at HIGH.
215
BIASL
OUT
Tr array IC
DV bias voltage control signal. ON at HIGH.
216
BIASH
OUT
Tr array IC
DV bias voltage control signal. ON at HIGH.
217
BIAS
OUT
Tr array IC
DV bias output control signal. ON at HIGH.
218
CL
OUT
Tr array IC
Copy lamp control signal. ON at HIGH.
219
VFMCNT
OUT
Tr array IC
Ventilation fan rotating speed control signal. Low speed at HIGH, high
speed at LOW.
speed at LOW.
220
VFM
OUT
Tr array IC
Ventilation fan control signal. Fan ON at HIGH.
221
LDEN
OUT
Tr array IC
Laser circuit control signal. Laser circuit ON at HIGH.
222
PMD
OUT
Tr array IC
Polygon motor control signal. Polygon motor ON at HIGH.
223
5V
Power
224
MM
OUT
Tr array IC
Main motor control signal. Main motor ON at HIGH.
225
MPFS
OUT
Tr array IC
Manual paper feed solenoid control signal. Multi paper feed ON at
HIGH.
HIGH.
226
GND
Power
227
CPFS2
OUT
Tr array IC
Second cassette paper feed solenoid control signal. Second cassette
paper feed at HIGH.
paper feed at HIGH.
228
CPFS1
OUT
Tr array IC
Cassette paper feed solenoid control signal. One-stage cassette paper
feed at HIGH.
feed at HIGH.
229
TM
OUT
Tr array IC
Toner motor drive output (+)
AR-F151
11 – 10
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