Sharp AL-1217 (serv.man17) Service Manual ▷ View online
AL-1226 USER PROGRAMS 11 - 2
3. Density level adjustment
A. AE level adjustment (OC mode)
[Input procedure]
When the density select key is pressed and held for 5 sec after turning
on the [PHOTO] mode lamp, the [AUTO] mode lamp blinks and the
current setup of the density level is displayed.
on the [PHOTO] mode lamp, the [AUTO] mode lamp blinks and the
current setup of the density level is displayed.
[Adjustment]
The adjustment is made in 5 steps by pressing the density adjustment
key.
key.
[Terminating procedure]
When the density select key is pressed, the mode display is changed
from blinking to lighting, and the AE level setup is completed.
from blinking to lighting, and the AE level setup is completed.
• In the AE level adjustment mode, all the keys except for the [Density
select] key, the [Density adjustment] keys ([>] key and [< ] key) are
disabled.
disabled.
• In the AE level adjustment mode, the ready lamp and the online
lamp are turned off.
• The auto mode level adjustment is applied only for the auto mode.
• When the machine enters the exposure adjustment mode of OC
once, the adjustment mode is not changed though a document is set
on the SPF until the setup is completed.
on the SPF until the setup is completed.
B. AE level adjustment (SPF mode)
[Input procedure]
With the SPF mode lamp ON, when the density select key is pressed
and held for 5 sec after turning on the [PHOTO] mode lamp, the
[AUTO] mode lamp blinks and the current setup of the density level is
displayed.
and held for 5 sec after turning on the [PHOTO] mode lamp, the
[AUTO] mode lamp blinks and the current setup of the density level is
displayed.
[Adjustment]
The adjustment is made in 5 steps by pressing the density adjustment
key.
key.
[Terminating procedure]
When the mode select key is pressed, the mode display is changed
from blinking to lighting, and the AE level setup is completed.
from blinking to lighting, and the AE level setup is completed.
• During the AE level adjustment mode, all the keys except for the
[Density select] key, the [Density adjustment] keys ([>] key and [<]
key) are disabled.
key) are disabled.
• During the AE level adjustment mode, the ready lamp and the online
lamp are turned off.
• The auto mode level adjustment is applied only for the auto mode.
• When the machine enters the SPF exposure adjustment mode once,
the adjustment mode is not changed though a document is removed
from the SPF until the setup is completed.
from the SPF until the setup is completed.
• This function is not available for the OC model.
4. Toner save mode setup and cancel
[Input procedure]
When the density select key is pressed and held for 5 sec after turning
on the [TEXT] mode lamp, the [PHOTO] mode lamp blinks and the cur-
rent setup of the density level is displayed.
on the [TEXT] mode lamp, the [PHOTO] mode lamp blinks and the cur-
rent setup of the density level is displayed.
[Setup/Cancel]
When the density adjustment key [< ] is pressed, Level 1 is lighted and
the toner save mode is set.
When the density adjustment key [> ] is pressed, Level 5 is lighted and
the toner save mode is canceled.
the toner save mode is set.
When the density adjustment key [> ] is pressed, Level 5 is lighted and
the toner save mode is canceled.
[Terminating procedure]
When the density select key is pressed, the mode display is changed
from blinking to lighting, and the setup is completed.
from blinking to lighting, and the setup is completed.
• During the toner save mode setup, all the keys except for the [Den-
sity select] key, the [Density adjustment] keys ([>] key and [ <] key)
are disabled.
are disabled.
• During the toner save mode setup, the ready lamp and the online
lamp are turned off.
• The toner save mode is applied in the auto mode and the manual
mode.
AL-1226 ELECTRICAL SECTION 12 - 1
[12] ELECTRICAL SECTION
1. Block diagram
A. Overall block diagram
Carriage Unit
CCD PWB
12V
R
G
8bits
MSB/LSB)
B
VCL
5VEN
PSW
SELin
ADCCLK
Kin
BSAMP, VSAMP
SDI, SCLK, LOAD
1,
2,
TG,
TG2,
TG3
RB,
CLB,
1L
3.3V
Clock,Data,
LATCH
CCD
( uPD8861)
AFE(AD9826)
C
D
S
A
G
C
M
P
X
AD
16bits
CCD Driver
Operation PWB
SDRAM
(8MB/16MB)
CCFL
Lamp
Inverter
I/F PWB
(Optional)
ASIC Reset
IEEE 1284 I/F
3.3V
A[9
1]
USB I/F
D[15
0]
MMD
LSU UNIT
VFM
Main Motor
PMD
TM+, TM–
DMT0/1/2/3
ASIC
CPU
H8S/2320
I
E
E
E
1
2
8
4
Laser
I/F PWB
(Optional)
Polygon Motor
OSC
(24MHz)
OSC
(13.9867MHz)
Other Loads
<ASIC I/O>
MPFS,RRS,HL,PR
FAN Motor
SGS
SRRC
SPUS
SPPS
TC
GRIDL
MC
BIAS
MPFS
CPFS2
Toner Motor
Scanner Motor
CPFS1
Duplex Motor
(Duplex model only)
Other Inputs
CPU INTERRUPT
PMCLK
MHPS
SPPD
CPU I/O
RTH
PPD1, POD, MFD, CED1, TCS,
DVS1, PPD2, PPD3, CED2, DSWS
SDSW, SPID, SDOD, DRST
MultiPlexed
MCU PWB UNIT
I2C Bus
A[16..0]
D[15
8]
A[19..0]
D[15..0]
A[19
0]
D[15
0]
Power Reset
3.3V
3.3V/5V/
5VEN/12V
24V
CPU
H8S/2320
(19.6608MHz)
EEPROM
(2Kb)
Reset IC
SRAM
(1Mb x 1)
ROM (4Mb)
Power Supply Unit
(Low Power/High Power)
SPMT0/1/2/3
SPF Motor
U
S
B
1
.
1
AL-1226 ELECTRICAL SECTION 12 - 2
B. MCU PWB unit
T
oner
Mo
to
r
Main
Motor
SPF
Mo
to
r
Dupl
e
x
Mo
to
r
S
c
anner
Mo
to
r
Operation
PW
B
CCD
PW
B
Inverter
PW
B
Copy
Lamp
PO
W
E
R
SU
PPL
Y
NewDrum
Detect
PPD
1
POD
MFD
FA
N
Mo
to
r
Cassette
Detect
CPF
S
MPFS
RRS
SD
OD
D
S
PF
M
odel
Onl
y
SPF/D
SPF
M
odel
Onl
y
CN106
CN111
CN114
CN123
CN108
CN109
CN117
CN116
CN110
IC
126
CN114
IC
128
CN122
LS
U UNI
T
(P
ol
y
gon M
o
to
r)
IC
127
CN103
IC
129
CN124
IC
103
CPU(H8S
/2320)
IC
106
ASIC
HG73C119HF
CN123
IC
121
IC
115
IC
117
IC
114
IC
119
IC
121
IC
124
CN101
IC
125
CN104
IC
115
IC
114
IC
116
CN102
CN112
IC
124
IC
125
Interlock SW
IC
118
IC
113
IC
124
IC
121
CN119
IC
115
CN107
IC
113
Interface
PW
B
IC
131
CN105
/V
IDE
O
MPRDY
/SYNC
SPMT_0
–
3
/DMT_0
–
3
OUT_A+
–
B-
SHO
L
D
/L
DEN
PSW
TMA
_
O
MMLD
/MMD
KI
N1
KI
N2
OP_C
LK
Et
c
OP_LA
TC
H
OP_D
A
T
A
Et
c
AF
E_CL
K
A
D
_C
LK
VCL
Et
c
AF
E_DB0
–
7
MT_A
T_H
OME
Et
c
USBI
N
VPI
N
VM
IN
Et
c
P
A
RAD0
–
7
VPO
UT
VM
OU
T
Etc
/POF
F
HL
OUT
Et
c
3.3V
IN
5V
IN
12V
IN
24V
IN
Et
c
Et
c
Et
c
TMB
_
O
VF
M
O
UT
/VF
M
CNT
IC
125
CN120
PPD
2
THERMISTO
R
HIGH VOLTAGE
CONTROL UNIT
Heater Lamp
DV UNIT
D
VSEL
AL-1226 ELECTRICAL SECTION 12 - 3
2. Circuit descriptions
A. Main PWB (MCU)
(1) General
The MCU PWB is composed of:
• CPU peripheral sections which perform mechanical sequence
control and function job management
• Image process ASIC which performs image process, CCD control,
LSU control, and print control
• Motor control circuit
• Mechanical load, sensor I/O circuit
It controls the processes for copying, the transport loads, fusing, the
optical system, the operation panel, and the option PWB.
optical system, the operation panel, and the option PWB.
(2) CPU signal table (HD6412320F)
PIN
No.
Signal code
Input/
Output
Operating
1
/CS1
Output
SRAM chip select
2
/CS0
Output
Flash ROM chip select
3
GND
DGND
4
GND
DGND
5
Vcc
CPU3.3V
6
A0
Output
Address bus
7
A1
Output
Address bus
8
A2
Output
Address bus
9
A3
Output
Address bus
10
GND
DGND
11
A4
Output
Address bus
12
A5
Output
Address bus
13
A6
Output
Address bus
14
A7
Output
Address bus
15
A8
Output
Address bus
16
A9
Output
Address bus
17
A10
Output
Address bus
18
A11
Output
Address bus
19
GND
DGND
20
A12
Output
Address bus
21
A13
Output
Address bus
22
A14
Output
Address bus
23
A15
Output
Address bus
24
A16
Output
Address bus
25
A17
Output
Address bus
26
A18
Output
Address bus
27
A19
Output
Address bus
28
GND
DGND
29
A20
Pull-Up
30
PSW
Interruption
level input
level input
Print SW
31
SPPD
Interruption
level input
level input
SPF paper sensor
32
CCD_TG
Interruption
level input
level input
CCD horizontal sync signal
33
Mt_at_home
Interruption
level input
level input
Mirror Home Position
34
/CPUSYNC
Interruption
level input
level input
Horizontal sync (ASIC)
35
GND
DGND
36
GND
DGND
37
FW
Interruption
level input
level input
Zero cross signal
38
ARB_INT
Interruption
level input
level input
ASIC interruption
39
Vcc
CPU3.3V
40
D0
Data I/O
Data bus
41
D1
Data I/O
Data bus
42
D2
Data I/O
Data bus
43
D3
Data I/O
Data bus
44
GND
DGND
45
D4
Data I/O
Data bus
46
D5
Data I/O
Data bus
47
D6
Data I/O
Data bus
48
D7
Data I/O
Data bus
49
D8
Data I/O
Data bus
50
D9
Data I/O
Data bus
51
D10
Data I/O
Data bus
52
D11
Data I/O
Data bus
53
GND
DGND
54
D12
Data I/O
Data bus
55
D13
Data I/O
Data bus
56
D14
Data I/O
Data bus
57
D15
Data I/O
Data bus
58
Vcc
CPU3.3V
59
ONL
Output
Online LED control
60
TxD1
Output
For debug
61
D_CONT
Output
USB Pull-Up control
62
BEO
Output
OPE LED control
63
RESETOUT1
Output
ASIC Reset signal
64
CL_Reset
Output
Copy lamp control
65
GND
DGND
66
/DREQ0
Pull-Up
67
GND
DGND
68
GND
DGND
69
RY/BY
Input
Flash Busy signal
70
KIN1
Input
HC151 selector detection
71
KIN2
Input
HC151 selector detection
72
TMCLK
Output
Toner motor lock
73
TMEN
Output
Toner motor enable
74
POFF
Output
Shut off control
75
PMCLK
Output
Polygon clock
76
DMT0
Output
Duplex Motor signal
77
DMT1
Output
Duplex Motor signal
78
DMT2
Output
Duplex Motor signal
79
DMT3
Output
Duplex Motor signal
80
WDTOVF
Output
NC Pull-Up
81
/RES
Input
Reset
82
NMI
Output
NC Pull-Up
83
STBY
Output
NC Pull-Up
84
Vcc
CPU3.3V
85
XTAL
Input
Clock
86
EXTAL
Output
Clock
87
GND
DGND
88
CPUCLK
Output
NC
89
Vcc
CPU3.3V
90
Reset OUT
NC
91
/RD
Output
Read signal
92
/HWR
Output
Write signal (High address)
93
/LWR
Output
Write signal (Low address)
94
SELIN3
Output
HC151 select signal
95
SELIN2
Output
HC151 select signal
96
SELIN1
Output
HC151 select signal
97
FAXSTS
NC
98
FAXCMD
NC
99
GND
DGND
100
GND
DGND
101
SCL
Output
EEPROM clock
102
DSDA
Data I/O
EEPROM Data bus
103
AVcc
CPU3.3V
104
Vref
CPU3.3V
105
RTH
Analog
input
input
Fusing thermistor
106
Analog
input
input
NC Pull-Up
107
SIN1
Input
HC151 select detection
108
SIN2
Input
HC151 select detection
109
SIN3
Input
HC151 select detection
PIN
No.
Signal code
Input/
Output
Operating
Click on the first or last page to see other AL-1217 (serv.man17) service manuals if exist.