Md-45 - Sony DPP-EX7 Service Manual

1
C947
1uF
CN911
1 STB_GND
2 STB_3.3V
3 POWER_SW
4 POWER_CONT
5 GND
6 GND
C946
7 5V_LCDINV
1uF
8 5V
9 5V
10 GND
CN910
1 STEP_MOTOR_IN0
2 STEP_MOTOR_IN1
3 STEP_MOTOR_IN2
2
4 STEP_MOTOR_IN3
5 GND
6 PAPER_EDGE_SENS
7 JUMMING_DET_SENS
8 HEAD_POSI0_SENS
9 HEAD_POSI1_SENS
10 RIBBON_MARK_SENS
11 RIBBON_CODE0_SENS
12 RIBBON_CODE1_SENS
13 RIBBON_IN_SENS
14 SENSCONT
15 GND
16 HEAD_MOTOR_IN1
17 HEAD_MOTOR_IN0
18 FANCONT
19 USB_GND
USB_D+
20 USB_D+
21 USB_GND
USB_D-
22 USB_D-
23 USB_GND
USB_VBUS
3 24 USB_VBUS
25 GND
26 GND
28 27
Q911
DTC144EUA-T106
C901
0.01uF
4
CN906
1 RIBBON_MARK_SENS
2 5V
4 3
Q912
DTC144EUA-T106
C902
0.01uF
CN908
1 JUMMING_DET_SENS
2 JUMMING_DET_LED
3 GND(DIGTAL)
5 4
DTC144EUA-T106
C903
0.01uF
CN909
1 PAPER_EDGE_SENS
5
2 PAPER_EDGE_LED
3 GND(DIGTAL)
5 4
C911
0.1uF
A B
C909
10uF
16V
C910
0.1uF
D901
SIR-34ST3FK
R909
180
Q919
R910
RML UN2215-QRS(TX)
180
PH905
DG-105F3
Q914
DTC144EUA-T106
RI
C904
0.01uF
NM 2 1 3 4
R916
150
PH901
DG-105F3
Q915
RC.1
DTC144WUA-T106
C905
0.01uF
NM 2 1 3 4
R912
150
PH902
DG-105F3
Q916
RC.0
DTC144WUA-T106
C906
0.01uF
NM
2 1 3 4
R913
150
PH903
Q913 DG-105F3
Q917
HP.1
DTC144EUA-T106
C907
0.0022uF 2 1 3 4 C912
0.1uF
R914
240
PH904
DG-105F3
Q918
HP.0
DTC144EUA-T106
C908
0.0022uF 2 1 3 4 C913
0.1uF
R915
220
C

MD-45

MD-45
R949
100k
Q906
2SB709A-R-TX
CL912
R931
C924
0.47 R935
C925 R934 0.001uF
33k
0.001uF 33k
IC901
MTD2009J-4072
CL911
C926
0.001uF
R926
R925
10k
33k
R921 R922 R923 R924
33k 1k 1k 1k
NM NM NM
R930
R928 R929 R927 R941
12k
4.7k 4.7k 1.2k 4.7k
Q901
Q902
DTC144EUA-T106
DTC144EUA-T106
8-4 8-4
D E
Q953
2SC2412K-T-146-Q
C959 R954
0.01uF 100k
D951
STZ6.8N-T146
1
3
2
D952
STZ6.8N-T146
1
3
2
L951
1 3
2 4
R955 1 3
0
2 4
L952
R901
3.9k
R947
R902
10k F902
3.9k
R950
100
R948
10k
C944
0.1uF
Q907
DTC144EUA-T106
L921
6.8uH
C923 C922
0.1uF
22uF
35V
R903
2.2k
Q972
Q971
2SB709A-R-TX
2SB709A-R-TX
R976
0
R971
R973
10k 100k
FB922
R936
10k R974
6.8k
R972
100k
R937
1k
NM C971
10uF R975
16V 1M
Q973
2SC2412K-T-146-Q
RB551V-30TE-17
R940
10k
R942
4.7k
Q904 Q903
DTC144EUA-T106 DTC144EUA-T106
F G
R951
220k
KI901
KI902
KI903
J951
FB951
USB_VBUS 1
USB_D- 2
USB_D+ 3
USB_GND 4
5 6 7 8
CN901
GND 1
! GND 2
+5V 3
+5V 4
! POWER_SW 5
+22V_CONT 6
F901
+22V(MOTOR) 7
GND(MOTOR) 8
9 10
C931
CN903
0.1uF
+22V(HEAD_FAN) 1
GND(HEAD_FAN) 2
3 4
Q905
2SD2537-T100VW
R904
47k
Q974
DTA114EUA-T106
CN904
HEAD_MOTOR_X 1
C932
0.1uF HEAD_MOTOR_Y 2
3 4
D903
D902
RB551V-30TE-17
5 6 CN905
SMA 4
SMnA 3
SMB 2
SMnB 1
MD-45
DPP-EX7 V2
H