Power Supply Block Diagram - Pioneer CDJ-900 Service Manual

1

4.3 POWER SUPPLY BLOCK DIAGRAM

A
E
JACB ASSY
V+10A
for
Audio
B
AMP
V-10A
CN8801
D
USBA ASSY
V+5USB
for
USB
C
CN9901
Type A
N
POWER
V+12_EUP
SUPPLY
D
ASSY
V+12
CN2
AC
AC
E
O
ACIN ASSY
F
22
1
2
Q1308
Transistor
10V -> 5V
2SB1698
Q1302
V+10A
V+10A
Transistor
12V -> 10V
2SB1698
Q1303
V-10A
V-10A
Transistor
-11V -> -10V
CN501 2SD2662
IC1102
V+5USB
High-Side_SW
5V
BD2051AFJ
V+5USB
CN1305
P7302 P7307
V+12_EUP
0.375A 1.25A
V+12_EUP
V+12
V+12 IC7303
V+3R3
V+12
D/D_CONV
12V -> 3.3V
CN7301
SI-8005Q
IC7302
D/D_CONV
12V -> 5V
SI-8005Q
IC7301
V+7R5
D/D_CONV
12V -> 7.5V
SI-8005Q
Power supply setup sequence
Show the power supply controlling the setup order by a circuit.
1 2
V+3R3E
V+12EUP
2
3
V+5A V+5D
for DAC
V+12
P2
0.5A
V-11
V+5
P3
1.25A
V+12_EUP
V+12
V+3R3
for MAIN CPU, DSP, flashROM,
SDRAM, USB, Logic & ETHER
Schottky diode
V+7R5
V+5 V-11
Charge
Pump
-12V
GND
V+5D
IC7003
5V_REG
7.5V -> 5V
BA00DD0WHFP
3 4 5
V+12 V+5 V+3R3
V-11
CDJ-900
3
4
C
MAIN ASSY
IC3002
V+1R2
D/D_CONV
for MAIN CPU,
12V -> 1.235V
DSP
SI-8005Q
V+12
Q3001
V+5SW
FET_SW
5V
RTQ040P02
V+12_EUP
V+12_EUP
V+3R3
V+7R2
A
SRV ASSY
P7301
1.25A
D7311
V+7R2
7.5V -> 7.2V
for
RB060L-40
Spindle,Stepper
V+7R5
Loading,Actuator
Driver
V+5D, V+5A
for Driver, Flash
SODC
IC7005
V+3D, V+3A
3.3V_REG
for
5V -> 3.3V
FEP, SODC
MM1478DFBE
V+1R5D
IC7007
1.5V_REG
for SODC
5V -> 1.5V
PQ1LAX95MSP
6 7
V+7R5 V+27
V+7R2 V+54
V+33
4
V+12
V+5
V+3R3
V+7R2
CN2001