Read Sharp AR-M550 (serv.man11) Service Manual online
AR-M550/M620 DETAILS OF EACH SECTION 6 - 20
(Paper feed trays 3 and 4)
A. Major parts and signal functions
M1SS PWB
M2SS PWB
14
13
12
11
10
1
9
8
7
6
5
4
3
2
24
23
22
21
20
19
18
17
16
15
25
26
27
28
29
30
26
27
28
29
30
32
31
9
8
7
6
5
4
3
2
1
9
8
7
6
5
4
3
2
1
12
11
10
12
11
10
13
14
15
16
17
18
14
15
16
17
18
13
14
15
16
17
18
14
15
16
17
18
5
4
3
2
1
6
5
4
3
2
1
6
33
34
34
3
2
1
3
2
1
PCU PWB
GND2
M1SS1
M1SS2
M1SS3
M1SS4
GND2
M1SPD
M1SS1
M1SS2
M1SS3
M1SS4
GND2
M1SPD
GND2
M2SS1
M2SS2
M2SS3
M2SS4
GND2
M2SPD
M2SS1
M2SS2
M2SS3
M2SS4
GND2
M2SPD
(NC)
(NC)
SMP-18V-NC/SMR-18V-N
+5V2
+5V2
S6B-PH-K-S
S6B-PH-K-S
PHR-3
PHR-3
M2SPD
GND2
M1SS1
M1SS2
M1SS3
M1SS4
M1SS2
M1SS3
M1SS4
M2SS1
M2SS2
M2SS3
M2SS4
M2SS2
M2SS3
M2SS4
M1SPD
(NC)
GND2
GND2
GND2
(NC)
GND2
GND2
+5V2
+5V2
CN-15
GND2
GND2
/GBPWM
/MHVREM
MHV-T
/THV+PWM
GND2
/GBPWM
/MHVREM
MHV-T
/THV+PWM
/CHV-PWM
/CHV-REM
/CHVACPWM
/CHVACREM
/DVPWM
/DVREM
HVREM
/CHV-REM
/CHVACPWM
/CHVACREM
/DVPWM
/DVREM
HVREM
(NC)
DSW-F
+24V1
(NC)
(NC)
THV+REM
M2SS1
M2SPD
GND2
M2SS4
M2SS3
M2SS2
M1SPD
GND2
M1SS4
M1SS3
M1SS2
M1SS1
+5V2
+5V2
+5V2
GND2
GND2
GND2
B34B-PHDSS-B
9
8
7
6
5
4
3
2
1
9
8
7
6
5
4
3
2
1
11
10
11
10
9
8
7
6
5
4
3
2
1
9
8
7
6
5
4
3
2
1
11
10
11
10
3
1
1
2
2
2
3
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
1
9
8
7
6
5
4
3
2
25
26
27
28
29
30
31
32
26
27
28
29
30
31
32
3
2
1
3
2
1
3
2
1
2
1
3
2
1
3
2
1
3
2
1
2
1
1
2
2
2
1
1
2
1
2
1
1
2
1
1
3
2
1
2
2
1
2
2
GND2
GND2
GND2
+24V1
PHR-3
PHR-3
GND2
GND2
GND2
+24V1
SMR-11V-N/SMP-11V-NC
/M1PUS
M1PED
M1LUD
M1PFD
/M1PUS
M1PED
M1LUD
M1PFD
GND2
GND2
GND2
+24V1
PHR-3
PHR-3
GND2
GND2
GND2
+24V1
SMR-11V-N/SMP-11V-NC
/M2PUS
M2PED
M2LUD
M2PFD
/M2PUS
M2PED
M2LUD
M2PFD
+5V2
+5V2
+5V2
+5V2
+5V2
+5V2
+5V2
+5V2
CN-16
PHR-2
GND2
PHNR-02-H+BU02P-TR-P-H
+24V1
/M1PFC
/M1PFC
PHNR-02-H+BU02P-TR-P-H
+24V1
/DSKPFC1
/DSKPFC1
SMR-03V-N/SMP-03V-NC
M1PWS
GND2
M1PWS
GND2
+24V1
+24V1
/M1PUS
/M2PUS
GND2
GND2
M1PED
M2PED
+5V2
+5V2
GND2
GND2
M1LUD
M2LUD
+5V2
+5V2
+5V-M1PFD
+5V-M2PFD
GND2
GND2
M1PFD
M2PFD
+24V1
+24V1
/M1PFC
/DSKPFC1
M1LUM
Vref
GND2
GND2
(NC)
M1PWS
+24V1
/M1PUS
/M2PUS
GND2
GND2
M1PED
M2PED
+5V2
+5V2
GND2
GND2
M1LUD
M2LUD
+5V2
+5V2
+5V-M1PFD
+5V-M2PFD
GND2
GND2
M1PFD
M2PFD
+24V1
+24V1
/M1PFC
/DSKPFC1
M1LUM
Vref
GND2
GND2
(NC)
M1PWS
B32B-PHDSS-B
+5V-M1PFD
+5V-M1PFD
+5V-M2PFD
+5V-M2PFD
M1LUM
Vref
Vref
SMP-02V-NC/SMR-02V-N
SMP-02V-NC/SMR-02V-N
PHR-3(RED)
PHR-3(RED)
Soldering
M1PED
M1LUD
M1PFD
M1PUS
M1LUM
M1PWS
MM
M1SPD
DSKPFC1
M1PFC
14
13
12
11
10
1
9
8
7
6
5
4
3
2
24
23
22
21
20
19
18
17
16
15
25
26
27
28
29
30
26
27
28
29
30
9
8
7
6
5
4
3
2
1
9
8
7
6
5
4
3
2
1
10
10
1
2
2
2
1
1
2
1
CN-17
M2LUM
GND2
+24V1
/T1PFC
+24V1
+24V1
/M2PFC
+24V1
/DSKPFC2
GND2
GND2
TXD-FIN
RXD-FIN
RES-FIN
/DTR-FIN
/DSR-FIN
GND2
+5V2
/MM
MMCLK
MM-T
GND2
TANSET
+5V2
GND2
GND2
DSW-DSK
+5V2
(NC)
TSW-LED
TSW
(NC)
B30B-PHDSS-B
GND2
TXD-FIN
RXD-FIN
/DTR-FIN
/DSR-FIN
RES-FIN
TXD-FIN
RXD-FIN
/DTR-FIN
/DSR-FIN
RES-FIN
GND2
+24V1
/M2PFC
+24V1
/M2PFC
M2LUM
SMR-10V-N/SMP-10V-NC
PHR-2
GND2
PHNR-02-H+BU02P-TR-P-H
+24V1
/M2PFC
/M2PFC
M2LUM
M2LUM
M2PFC
5
4
3
2
1
S5B-PH-K-S
GND2
+5V2
/MM
MMCLK
MM-T
+5V2
/MM
MMCLK
MM-T
M2PED
M2LUD
M2PFD
M2PUS
M2SPD
7
8
9
7
8
9
11
12
12
1
1
1
2
2
10
5
4
4
3
3
6
6
10
5
11
7
8
9
9
8
7
10
11
11
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