Sharp JX-8200 Service Manual page 193

SHARP SERVICE MANUAL JX8200SM [13] ELECTRICAL SECTION
b. Pin configurations
D2 1
D3 2
D4 3
D5 4
D6 5
D7 6
A8 7
A10 8
A11 9
A12 10
A13 11
A14 12
A15 13
A16 14
MODE1 15
MODE0/VPP 16
VSS 17
VDD 18
19
(Open)
20
(G) 21
22
23
(L)
24
25
C. Signal table
NAME
A0 Address/data signal 0
A1 Address/data signal 1
A2 Address/data signal 2
A3 Address/data signal 3
A4 Address/data signal 4
A5 Address/data signal 5
A6 Address/data signal 6
A7 Address/data signal 7
ACON_ AC power relay drive signal for fusing unit (Heater lamp) (Drive at LOW) Purpose is
protection against hung up.
Signal identification signal (Used to identify address/data line signals A0 ∼ A7 to address
ASTB_
signal or data signal. Address signal at LOW
BSCON Developing bias voltage control signal (When this voltage is increased, the developing bias
voltage is also increased.)
CBSON_ Developing bias ON signal (Cyan) (Developing bias voltage is outputted at LOW)
CBSY_ Controller busy (ICU) signal
LOW when in initial operation of ICU immediately after Power ON, and communication
between PCU and ICU is inhibited.
CDSEN Toner concentration sensor detection signal (Cyan) (Output voltage is inversely proportional
to toner concentration.)
CDVF_ Color developing unit fuse cut drive signal (This signal is sued to blow off the fuse. At LOW,
the fuse is blown off.)
CDVFN Color developing unit fuse cut detection signal (Used to check the fuse to detect that the
developing unit is a new one or not. LOW when new one.)
CLJAM_ Paper jam detection signal (Transfer drum cleaner section) (LOW at detection)
CLK Clock signal (For IC10)
CMAGC_ Developing roller clutch drive signal (Cyan) (LOW at drive)
CMD Command signal from ICU
CRDY_ Command signal reception ready signal (LOW when PCU is ready for reception of
command signal (COM).)
CTCONS_ Toner supply clutch solenoid drive signal (Cyan) (LOW at drive)
CTMA Toner motor drive signal A (Color) (Pulse drive)
CTMB Toner motor drive signal B (Color) (Pulse drive)
CTMDA Color toner motor control signal A (Clock)
CTMDB Color toner motor control signal B (Clock)
CTMGA Toner motor drive control signal A (Color) (Pulse signal)
75 RESET
74
73
72
(L)
71
70
69
68 P21
67 A9
66
65
64
63
(L)
62
61
60
59
58
(Open)
57
56
(G)
55
54
53
(G)
52
51
DESCRIPTION
13 – 34
SIGNAL KIND
DATA
DATA
DATA
DATA
DATA
DATA
DATA
DATA
DRIVE
CONTROL
CONTROL (ANALOG)
CONTROL
STATUS
SENSE (ANALOG)
DRIVE
DETECT
DETECT
CLOCK
DRIVE
DATA (COMMAND)
STATUS
DRIVE
DRIVE
DRIVE
CONTROL (CLOCK)
CONTROL (CLOCK)
CONTROL