Pioneer DDJ-SZ2 Service Manual page 6

1 2 3
CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE.
REPLACE ONLY WITH SAME TYPE NO.
0437.750. MFD. BY LITTELFUSE INC. FOR P1201.
A FROM/TO POWER SUPPLY
1
V+12SW V+12E
V+12SW
C N 1 2 0 1
B 6 B - X H - A P 1 2 0 1
D E K 1 1 2 1 - A !
3
1 2
V+12E 6
0437.750
V+12SW 5 750mA
V+12SW 4
PWR_xON 3
GNDD 2
1
B GNDM
GNDD
DC-DC Converter
12V -> 26V (FL)
R 1 2 0 5 C 1 2 1 9
V+12SW
L 1 2 0 1 N M N M
C
0.39m
R 1 2 0 2 C T H 1 2 0 9 - A D 1 2 0 2
1
R B 1 6 0 L - 4 0
SA
IC1202
!
R 1 2 0 3
NJM2392M
1 8 1
SA
C D C S
7 2
S I E S
C 1 2 1 7
6 3
V + C T
5 4 1 0 0 p / 5 0
I N - G N D
CH
100kHz
D
GNDD
GNDD
FLDC POWER SUPPLY
6 6
V+5LED FLDCL+ FLDCL-
FLDCL+ FLDCL-
R 1 2 3 5
0
E
R1268
10
Q1215
Q1214
2SC5712
LSAR523UB
GNDD
F
VOLTAGE DETECTION CIRCUIT
V+3R3D V+1R2D
V+12SW V+3R3D V+12SW V+1R2D V+15A_REG
R 1 2 2 2 R 1 2 2 6
G
GNDD N M GNDD GNDD GNDP
N M
GNDD GNDD
H
A
F 2/15
4 5
Regulator
12V -> 3.3V (E)
2
V+12E V+3R3E
V+12E D 1 2 0 1 4
N M
V+3R3E
!
PWR_xON
P W R _ O N _ C O N T
Q 1 2 0 1
L T C 0 2 4 E E B
GNDD GNDD
V+26FL
V+26FL_1 V+26FL
Q 1 2 0 5
2 S A 1 5 7 7 ( Q R )
V+3R3D
Q 1 2 0 3
N M
85 Q 1 2 0 2
N M
Q 1 2 0 4
R 1 3 3 2
Q 1 2 0 7
L T C 0 2 4 E E B
2 S C 4 0 9 7 ( R )
0
V+3R3D
GNDD
GNDD
5
1
V + F L _ C O N T
4
x A C _ O F F
R 1 2 0 9
R 1 2 0 6
2
3 0 2 . 2 k
I C 1 2 0 7
Q 1 2 0 6
NM
L S C R 5 2 3 U B
GNDD
GNDD
V+5LED FLDCR+ FLDCR-
FLDCR+ FLDCR-
R 1 2 8 9
0
R1293
10
Q1217
Q1216
2SC5712
LSAR523UB
GNDD
V+15A V+3R3A
V+3R3A V+3R3E
R 1 2 3 0
F_DET
N M
7
GNDP GNDD
A F 7/15
Q 1 2 1 1
L T C 1 1 4 Y U B R 1 2 3 2
F A U L T _ D E T
7:9D
N M
GNDP
GNDD GNDD
6 7 8
DC-DC Converter
12V -> 1.25V (D)
V+12SW
L 1 2 0 2
4 7 u
C T H 1 4 7 5 - A
! IC1203
BD9328EFJ
R 1 2 3 3 C 1 2 4 1 1 8
B S T S S
2 2 FIN
0 . 1 u / 1 0 2 7
9
V I N E N
3 6
S W C O M P
4 5
G N D F B
380kHz
5
V+26FL
GNDD
DC-DC Converter
12V -> 5V (D)
V+12SW
L 1 2 0 3
3 3 u
CTH1354-A
! IC1204
BD9329EFJ
R 1 2 3 6 C 1 2 4 2 1 8
B S T S S
FIN
2 2 0 . 1 u / 1 0 2 7
9
V I N E N
3 6
S W C O M P
4 5
G N D F B
380kHz
GNDD
DC-DC Converter
12V -> 7.9V (A)
V+12SW
L 1 2 0 4
0 . 2 2 m
A T H 7 0 5 3 - A
! IC1205
BD9328EFJ
R 1 2 3 7 C 1 2 4 3
1 8
B S T S S
FIN
2 2 0 . 1 u / 1 0
2 7
9
V I N E N
3 6
S W C O M P
4 5
G N D F B
380kHz
GNDD
The check point for service.
High Value Low Value
*****
(Legend silk indication on the PCB.)
V+3R3D 4.72V
V+1R2D 2.18V
V+15A
---
V+3R3A 4.73V
9 10 11
A MAIN ASSY (DWX3953)
F 2/15
POWER1 BLOCK
Regulator
5V -> 3.3V (D)
V+1R2D V+5D
8
D 1 2 1 0
V+1R2D
N M
! IC1206
NJM2886DL3-33
GNDD
10
V+5D
V+5D
V+5LED
P 1 2 0 2
N M
1 2
L 1 2 5 6
B T X 1 0 4 2 - A
GND_LED
V+8A
11
V+8A
V+5LED
R 1 1 9 5 R 1 1 9 6
N M N M
R 1 1 9 3 R 1 1 9 4
N M N M
GND_LED
---
---
9.80V
---
12
V+3R3D
9
V+3R3D
V+1R2D V+5D
GNDD
NOTES
NM is STBY
RS1/16SS***J
RS1/10SR***J
RS1/16SS****D
(D)
RS1/10SR****D
RS1/16SS****F
(F)
SA RS1/4SA***J
SQ RS1/8SQ***J
RN RN1/16SE****D
CCSSCH****
CCSRCH****
CKSSYB****
CKSRYB****
CKSYB***K
S
CKSQYB***K
SQ
+
CEVW***M
A
F 2/15