No. Signal Description
Stand-by
(V)
Note
TP241 MCLK Laser writing clock: Pixel 0 to 5.0 V
TP242 DREQS
SCSI controller: DMA
Request
0 to 5.0 V
TP243 GND Ground
TP244 *DBRD SCSI controller: 0 to 5.0 V Active Low
TP245 REQ_SC SCSI: *REQ 0 to 5.0 V Active Low
TP246 GND Ground
TP247 SCU_RXD
Received serial signal
from the SCU
0 to 5.0 V
TP248 371_RXD
Received serial signal
from the SCU
0 to 5.0 V
Not used
TP249 371_TXD
Transmition serial siganl
to the SCU
0 to 5.0 V
Not used
Scanner IPU
No. Signal Description Note
TP7 COM1 Ground for anolog signal
TP8 VIN_R Analog signal for Red
TP10 COM1 Ground for anolog data
TP11 VIN_G Analog signal for Green
TP13 COM1 Ground for anolog data
TP14 VIN_B Analog signal for Blue
TP19 SLSYNCB
Line sincronized signal for
scanning
0 to 5.0 V
TP26 GND Ground for digital signal
TP/FUSE/LED/SW
A166/A187/A189 4-32 SM
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