Pioneer CDJ-850, Service Manual

Page: 20 / 122

20
CDJ- 8 50
1 2 3 4
A
B
C
D
E
F
1 2 3 4
4.3 POWER SUPPLY BLOCK DIAGRAM
A
CNCT ASSY
P
ACIN ASSY
I
K
H
KSW
E
CMPX ASSY
B
SLMB ASSY
D
MAIN ASSY
C
JINT
ASSY
F
USBA AS
O
POWER
SUPPLY
ASSY
IC105
Buffa
JA2002
CO N TROL
IC101
32M
FLASH ROM
IC302
DAC
IC301
DSP
IC103
MAI N CPU
IC102
256M
SDRAM
IC303
OP AMP
JH2201
IC201
SER V O DSP
IC204
DRI V ER
OEIC
M
LOADI N G
MOTOR
M
STEPPI N G
MOTOR
V +
18
C
N
2003
C N 2005
20
PWR_O N
3
3
C N 1701
C N 2301
C N 2302
C N 2303
C N 2304
IC107
USB SW
JA2001
USB Type B
CO NN ECTOR
JA2003
AUDIO OUT
JA2003
USB Type A
CO NN ECTOR
12
SPI N DLE
MOTOR
12
2 2 21 21
8
MUTE
CIRCUIT
1
1
IC2003
USB O V ER CURRE N T
PROTECT (1A)
POWER DETECT CIRCUIT
V +5_USB
32
C N 2501 C N 2502
17
20
13
PW
2
26
V +12_EUP
6 22
5 23
V +5R6
11
V +7R6_M
V +7R6_D
V +12
V +10_A
V -10_A
13
7 7
1
9
5 6
6 5
V +1
IC2001
DCDC
12 V
→
7.6 V
12 V
→
-11 V
Q2028
REGULATOR
12 V
→
10 V
Q2028
REGULATOR
-11
V
→
-10 V
6 6
V CC
22 4
V +5P
V REF
V CC
V REF
V +5P
V REF
V +5M
19
30 21
15 36
IC409
DCDC
7.6 V
→
5.6 V
IC401
REGULATOR
5.6 V
→
3.3 V
IC402
REGULATOR
5.6 V
→
3.3 V
IC405
REGULATOR
5.6 V
→
5 V
IC206
REGULATOR
7.6 V
→
5.6 V
IC404
REGULATOR
3.3 V
→
1.2 V
IC408
REGULATOR
5.6 V
→
3.3 V
IC403
REGULATOR
3.3
V
→
1.25 V
IC406
REGULATOR
10 V
→
5 V
13
11
15
V D
ACDC
18 10
IC2002
REGULATOR
5.6 V
→
5 V
1
9
1 2
4
4
22 4
PICKUP ASSY
V +7R6_M
V +7R6_D
V +12
V +10_A
V -10_A
V +10_A
V -10_A
V REF1R65
V +5P
V +5M
V +
V -11_A
P2003
PROTECTOR
(0.5A)
P2
0
0
4
(0
.3
7
5
A
)
V
DE
T
V DET
V +7R6
V +5R6
V +3R3
V +3R3_S
V +5R6_M
V +1R2
V +3R3_A
V +1R25
V +5_A
C
N
2305
C
N
201
C
N
403
C
N
2006
V
+5_
U
S
B
V
-11_
A
V
+12_
E
U
P
C
N
2002
C
N
402
C
N
401
C
N
2004
C N 2001
PW
R
_
X
O
N
V
+12
V
+12_
E
U
P
JA2401
C N 140
JH120
PR
O
T
EC
T
O
R