Read Sharp MX-DE28 (serv.man2) Service Manual online
MX-DE28 ELECTRICAL SECTION 4 – 2
A
A
B
B
C
C
D
D
E
E
4
4
3
3
2
2
1
1
/DPFM
-CL
K
/DPFM
-E
N
DPFM-T
/DTR_DSK
/RxD_DSK
RES_DSK
/TRC_DSK
/DSR_DSK
/TxD_DSK
AC N
AC L
AC N
AC L
+5
V
+2
4V
2/22/22/2
MX-DE28
DPFM
+24V
TANDEM MAIN PWB
CPU(ATSAMD20J16A-AU)
DPTRC
+24V
D1PFC
+24V
+24V
D2PFC
D1LM
+24V
+24V
D2LM
3
Xtal(12.288MHz)
WH-DSK
WH-DSK2
D1PFD
+5V
+5V
D1PPD1
Paper feed tray 4 paper pass detector
Paper feed tray 3 paper pass detector 1
D1PPD2
+5V
Paper feed tray 3 paper pass detector 2
D1LUD
+5V
D2LUD
+5V
Paper feed tray 3 upper limit detector
Paper feed tray 4 upper limit detector
D1PED
+5V
D2PED
+5V
Paper feed tray 3 paper empty detector
Paper feed tray 4 paper empty detector
D1PQD
+5V
D2PQD
+5V
Paper feed tray 3 paper quantity detector
Paper feed tray 4 paper quantity detector
+5V
DHOD
+5V
D1CDT
Horizontal transport open/close detector
Paper feed tray 3 installation detector
(ULN2003AFWG)
+5V
D2CDT
Paper feed tray 4 installation detector
Desk paper feed motor
Desk paper transport clutch
Paper feed tray 3 paper feed clutch
Paper feed tray 2 transport clutch
Paper feed tray 3 lift-up motor
Paper feed tray 4 lift-up motor
Transistor array
Sensor input circuit
Lift motor drive circuit
Lift motor drive circuit
Output buffer
Output buffer
Input buffer
Input buffer
Input buffer
Input buffer
Output buffer
Warm heater(Lower1)
Warm heater(Lower2)
Saf
ety g
rounding
On board writing circuit
㻹㼍㼕㼚㻌㼡㼚㼕㼠㻹㼍㼕㼚㻌㼡㼚㼕㼠
㻹㼍㼕㼚㻌㼡㼚㼕㼠
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