Main Assy (4/4) - Pioneer CDJ-850 Service Manual

1

10.5 MAIN ASSY (4/4)

D
4/4
MAIN ASSY (DWX3174)
A
• BOARD IF and POWER SUPPLY Block
REGULATOR for CPU
V+5R6 V+3R3
IC401
BA33BC0WFP
!
B
3.3V
REGULATOR
GNDD
REGULATOR for AUDIO DAC & AUDIO DSP
V+5R6 V+3R3_A
IC402
S-1170B33UC-OTS
!
11
V5R6
C
3.3V
GNDD
REGULATOR
V+12_IJO
V+7R6_M
GNDD
R412
NM
D
GNDD
V+12_EUP
V+12_IJO
Q414
LTA124EUB
GNDD
R491
Q413
LTC124EUB
NM
E
GNDD
V+1R25
GNDD
F
D
4/4
74
1
2
V+1R2 V+5R6
IC404
BD00KA5WFP
9
!
10
1.2V
GNDD
REGULATOR
V+1R25
IC403
BD00KA5WFP
!
12
1.25V
GNDD
REGULATOR
V+1R2
V+12 V+12_IJO
V+5R6
R425 R437
NM
NM
GNDD
GNDD
V+5R6 V+3R3_S V+3R3
R487
10k
Q415
2SA1576A(QR)
PWR_ON
11C;8A
GNDD
V+12_IJO
V+1R2
R431
10k
R420 R443
Q405
HN1C01FU(YGR)
NM NM
GNDD
2
3
REGULATOR for PICK UP & SERVO
V+5_P V+5_M
IC405
!
NB
CONTROL
3 4
GND
2
Vin Vout
1 5
NJM2872BF05
5.0V
GNDS GNDD
REGULATOR
REGULATOR for AUDIO DAC & AUDIO FILTER
V+10_A V+5_A
!
IC406
1 5
Vin Vout
2
GND
3 4
NB
CONTROL
NOISE_BYPASS
NJM2872BF05
5.0V
GNDA
REGULATOR
V+1R25
POWER DETECT
Q410
NORMAL Low
LTC124EUB
ABNORMAL Hi
V+12_IJO
GNDD
V+12_IJO
GNDD
LSC4081UB(QR)
R461
NM
V+12_IJO
V-10_A
R448
10k
Q408
HN1C01FU(YGR)
CDJ-850
3
4
V+5R6 ! V+3R3_S
IC408
S-1170B33UC-OTS
14
V3R3S
3.3V
GNDS
REGULATOR
V-10_A V-AUDIO
16 17
V+5A
V-AUDIO
V+12_IJO
NORMAL Hi
ABNORMAL Low
VDET
11C
TO OWN SHEET
GNDD
Q411
GNDD
4
(USB_DN)
(USB_DP)
CN401
GNDD
AKM1299-A
V+7R6_M
1
GNDM
2
212
GNDD
3
R50
GNDD
4
NM
GNDD
5
V+7R6_D
6
V+7R6_D
7
GNDD
8
C431
47u/16
V+12
9
GNDD
10
V-10_A
V-10_A
11
V+10_A
GNDA
12
V+10_A
13
GNDA
5.
DC-DC C
V+7R6_D
1/4W
R483
0
Notes
NM
SR
CH
SCH
F
D
SR F
SR
1/4W