MX-6240N, MX-7040N (serv.man34). Circuit Diagram - Sharp Copying Equipment Service Manual (repair manual). Page 9

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MX-7040  BLOCK DIAGRAM / ブ ロ ッ ク 図  
1 –  8
LSU CNT PWB (2/2)
LSU_ASIC
CHIP-2
SCN
Mother
LD
LSU_ASIC
CHIP-3
ID[1:0]
I2C
ROM
I2C BUS
Hard reset
SCK
RSV_DAT
TRANS_RST
TRANS_DAT
Clock synchronization serial communication
JOBEND_INT_C
System CK
HSYNC/ECLK
Motor control
Polygon
control
Fan control
LD control
LD control
(APC etc.)
BD
nVSYNC_C
DT_C1+-
2
DT_C2+-
2
DT_C3+-
2
DT_C4+-
2
LSU_ASIC
CHIP-4
Main scanning,
Sub scanning
timing control
PCU I/F
Register etc...
ID[1:1]
I2C
ROM
I2C BUS
Hard reset
SCK
RSV_DAT
TRANS_RST
TRANS_DAT
Clock synchronization serial communication
JOBEND_INT_K
Serial
D/A I/F
LD control
LD control
(APC etc.)
8
DT_K1+-
2
DT_K2+-
2
DT_K3+-
2
DT_K4+-
2
Channel A: K1 circuit
Channel B: K2 circuit
Channel C: K3 circuit
Channel D: K4 circuit
PGM_CK
PGM_START
(PGM_BREAK)
CLK_C_EN
CLK_M_EN
CLK_A_EN
Motor control
Polygon
control
Fan control
PGM_LOCK
Polygon
motor
LSU
FAN
FAN_PWM
FANSTABLE
O.C.
O.C.
O.C.
3
S/S
ECLK
HSYNC
LVDS/Dr
iv
er
ECLK
HSYNC
nVSYNC_K
Image transfer CK
HSYNC
ECLK
HSYNC
VSYNC
ASIC
to CHIP-1/2/3
SYSCLK
Oscillator
(System CK)
ASIC
from CHIP-1/2/3
nVSYNC_Y/C/M
4
FPD-LINK/Reciv
er
ASIC
to CHIP-1/2/3
VIDEOIF_ACT
O.C.
nLDERRY/M/C/K
ASIC
to CHIP-1/2/3
BD
PCU I/F
Register etc...
Channel A: C1 circuit
Channel B: C2 circuit
Channel C: C3 circuit
Channel D: C4 circuit
FPD-LINK/Reciv
er
Print trigger chain
Print trigger chain
BD
OSCCLK_C
OSCCLK_M
OSCCLK_A
4
MFPC
Or
EFI
Serial
D/A I/F
3
nP2_L_AK1
nP1_L_AK1
nP0_L_AK1
nSEL_SH
nINT STC/K
4
SD_CLK
4
MSET_K/C
GAIN_FIX
2
P4_C_AK1(ENB)
P4_C_AK2(ENB)
2
P4_K_AK1(ENB)
P4_K_AK2(ENB)
P3_K_AK1
nP3_WAIT_AK1
nn#P0_AK1
#P0_1_AK1
nn#P2_AK1
nn#P1_AK1
SD_CLK
circuit
SDCLK_ENB
SDCLK_ENB
O.C.
8
35:5
35:5
#P0_2_AK1
SEL_ADJ_Y/M/C/K
P3_K_AK2
nP3_WAIT_AK2
nSEL_ADJ_K
3
nP2_L_AK2
nP1_L_AK2
nP0_L_AK2
nSEL_SH
nn#P0_AK2
#P0_1_AK2
nn#P2_AK2
nn#P1_AK2
#P0_2_AK2
P3_C_AK1
P3_WAIT_AK1
P3_C_AK2
P3_WAIT_AK2
nSEL_ADJ_C
P3_ADJ
P3_ADJ
#P0_3_AK2
O.C.
Main scanning,
Sub scanning
timing control
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