Main Section (3/4) (Pha-1A) - Sony PHA-1A Service Manual

PHA-1A/1AEU
3-5. SCHEMATIC DIAGRAM - MAIN Section (3/4) (PHA-1A) -
1 2 3 4
MAIN BOARD (3/4)
A
B
POWER CONTROL
74LVC1G175GW-125
3
2.9
D
2
R570
GND
0
>007S 1
4
PWR_CTRL CLK
C
MAIN
BOARD
(2/4)
(Page 13)
C530 C573
100 0.01
10V
>010S
PGND
C571 C572
MAIN V_OUT
1 2.2
BOARD
RST_OUT
(4/4)
D
(Page 15)
E
R580
0
F
R575
10k
G
R572
220k
3.9
R573
C575
220k
0.1
0
Q513
H
LSK3541FS8T2L
0
Q512
3.4
LSK3541FS8T2L
S
I
J
K
L
PHA-1A/1AEU
• See page 10 for Waveforms. • See page 16 for IC Block Diagrams.
5 6 7 8
Q501
RAF040P01TCL
JL111 4 4 JL122
S
JC101
R505
0
100k
R569
IC511 1M
0
IC511
Q501, 502
4 B+ SWITCH
3.3
Q
5 3.3 R568
VCC 10k 0
6 3.4
/CLR
Q502
3.2
RU1C001UNTCL
S
C574 R581
0.01 100k
R571
1M
IC510
+3.3V REGULATOR
IC510
MM3411A33URE
3.3 3 2
VOUT GND
4 4 1 4
R551 C554 C555 C556
VDD CE
100k 220p 0.1 0.1
R552 R553
47k 27k
R557
10k
Q510 - 513
SOFT START SWITCH
3.4
C577
2.2
0
Q511
LSK3541FS8T2L
0
S
3.9 C558
R556
68p
43k
Q510
LSK3541FS8T2L
S
S
R577
0
R574
100k
R579
10k
9 10 11 12
L500
R513
3.3uH D512
68k
RSX101M-30FJTR
5
IC500
DC/DC CONVERTER
IC500
TPS61087DRCR
R510 R512
33k 18k
C552 C553 C551 C502 C501 C500 C514 R511 C504 C505
0.1 0.47 10 0.1 10 0.1 0.0012 1.2k 100 0.1
16V 16V 10V
R555 C560 C559
IC501 0.05 100 1
1W 10V
DC/DC CONVERTER
IC501
MAX1846EUB+T
0 6
5
FB GND
1.2
4 7
REF PGND
1.2 3 8 0
COMP CS
1.2 2 2.8
9
L551
FREQ EXT
15uH
4 1 10 4
VL IN
6
2.8
R554
22k
S
4 0
D513
RSX101M-30FJTR
Q503
RAF040P01TCL
R582
DC/DC CONVERTER
2.2k
JL106
R578 R562
1M 100k
IC508
RESET SIGNAL GENERATOR
IC508
PST8431UL
4.9
2 3 2 4
CD VDD
4 1
3.4 4.9
OUT GND
C529 C576 C564
0.001 1 0.1
R576 C525
10k 10
L504
2.2uH
C526 C527
10 10
R564
470k
R566
10k
JC111
0
R563
470k
14 14
13 14 15 16
JL105
JC113
0
5.8 15 1 5
IN_15 OUT_1
IC502
4.9 14 2
R521
NR NC_2
0
5.8 13 3 5
EN +5V REGULATOR SENSE
12
4
IC502
CL109 0P1V 6P4V2
TPS7A4700RGWR
11 5
CL110
0P2V 6P4V1
C541
C581
1
0.47
IC504
C516
0.47
+5V REGULATOR
IC504
MM3411A50URE
R502
100k
5.8 1 4 5.8 5.8
CE VDD
2 3 4.9
GND VOUT
C515
C570 0.47
10
C569
10
-5.8 15 1 -4.9
IN_15 OUT_1
IC503
-1.1 14 2
NR/SS NC_2
5.8 13 3 -1.1
EN -5V REGULATOR FB
R558 12 4
IC503
0 NC_12 NC_4
TPS7A3301RGWR
11 5
NC_11 NC_5
C561
1
JC114
0
IC509
OVER CURRENT PROTECT
1
IC509
GND
TPS2553DBVR
-5.8 2
VIN
3 4
4.9 -4.9 3
EN FAULT VOUT
2 5 0.3
GND ILIM
1 6
4.9
IN OUT
R561 C565 C566 C517 C520
30k 0.1 10 0.47 10
C523
22
IC507
DC/DC CONVERTER
IC507
RP402N501E-TR-FE
4 4 3 4
VIN CE
2
GND
4.9 5 1 4
VOUT LX
A1
MODE
A2
GND_A2 +3.3V REGULATOR
A3
Q509
AVIN
RAF040P01TCL RP601Z330A-E2-F
A4
PVIN
4 4 (Chip Size Package)
S
Q508, 509
POWER CONTROL
0
Q508
3.5
RU1C001UNTCL
S
R567 C522 C521
100k 22 1
Note: The following parts on the MAIN board cannot replace with single.
When these parts are damaged, replace the complete mounted board.
IC500, IC501, IC502, IC503, IC505, IC506, IC507
17 18 19 20
JC103
JL121 0
CL111
CL112
C567
22
IC512
+3.3V REGULATOR
IC512
MM3411A33URE
1 4 5.8
CE VDD
CL113 >006S
2 3 3.3
GND VOUT VDD3_3_DAC
C580
VDD50_VD MAIN
0.47
BOARD
(1/4)
JC105
JL113 0
(Page 12)
VDDN50_VC
R525 C542 R524
330k 0.01 1k JC104
0
JL102 >008S
VDD50_VD
MAIN
VDD50_VB BOARD
(2/4)
PGND
(Page 13)
VDDN50_VE
C568 R523
22 100k
IC505
-5V REGULATOR
IC505
NJM2827F3-05(TE1)
C518
0.047
5 -1.8
CS
4
NC
JC106
0
JL114
PGND
JL107 >003S
VDD50_VG
JC109
C524
0 MAIN
22
BOARD
JL108
(1/4)
VDD33_VF
(Page 12)
FB101
>011S
VDD50_VG
MAIN
VDD33_VF
BOARD
IC506 (4/4)
C4
BOLX_C4 (Page 15)
C3
BOLX_C3
C2
IC506
GND_C2
C1
CSP CE
L503
1uH