Sony PHA-1A Service Manual page 35

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