Sharp SF-2020 Service Manual page 136

4
Internal block diagram
DATA
CLR
A2
A1
A0
WR
RD
CS
ODEN
5
I/O: CXD1095Q (IC8) pin signal
Signal
Pin No. Port
1 NC
2 NC
3 PB1
4 PB2 SRES
5 PB3
6 PB4
7 PB5
8 PB6
9 PB7 DVBIAS
10 VSS
11 PC0 THV/MHV
8 8
8
8
8
4
CONTROL
IN/OUT H/L
name
DTR OUT L
OUT H
TC OUT H
TRC OUT H
RRC OUT H
PR OUT H
OUT H
VSS
OUT H
8
LATCH
8
LATCH
8
LATCH
8
LATCH
4
LATCH
DATA
SELECT
OR
Option receive allow signal
Option reset signal
Total counter control signal
Transport clutch control signal
Resist roller clutch control signal
Power relay control signal
Developing bias control signal
Power (GND)
Transfer/main charger control signal
12 – 9
8
PA
8
PB
8
PC
8
PD
4
PE
Specifications