Sony PHA-1A User manual

SERVICE MANUAL
Sony Corporation
Published by Sony Techno Create Corporation
PHA-1A/1AEU
SPECIFICATIONS
9-896-144-02
2015H33-1
© 2015.08
US Model
Canadian Model
E Model
Australian Model
Chinese Model
Russian Model
PHA-1A
AEP Model
UK Model
PHA-1AEU
Ver. 1.1 2015.08
Frequency range
10 Hz – 100 kHz
Supported impedance
8 ȍ- 600 ȍ
Maximum output*1(when using the built-in lithium-ion
rechargeable battery)
Approx. 148 mW + 148 mW (8 ȍ, 10% distortion)
Approx. 80 mW + 80 mW (32 ȍ, 1% distortion)
Approx. 16.4 mW + 16.4 mW (300 ȍ, 10% distortion)
Output jack
Stereo mini jack*2( (headphones))
*2Only a 3-pole stereo mini plug is supported. Other plugs, including 2-pole
mini plug or 4-pole stereo mini plug, are not supported.
Input jack/port
Computer/WALKMAN®/Xperia connecting port
iPhone/iPad/iPod connecting port
Operating temperature
0 °C to 40 °C (32°F to 104°F)
Charging temperature
5 °C to 35 °C (41°F to 95°F)
Power source
DC 3.7 V: built-in lithium-ion rechargeable battery
Rated power consumption
(AEP, Russian, UK, E, Australian and Chinese models)
7 W
DC 5 V: when charging via USB
Battery life
Approx. 6 hours*3
*3when using the unit at 1 mW + 1 mW output (24 ȍ). Time may vary,
depending on the immediate environment or conditions of use.
Charging time
When connected to a computer: Approx. 3.5 hours*4
When connected to an AC outlet using the recommended USB AC adaptor
(sold separately): Approx. 2 hours*3
*4Time required for empty battery to recharge while the unit is off.
Dimensions
Approx. 62 mm × 18.5 mm × 109 mm
Mass
Approx. 145 g (5.11 oz)
Supported sampling frequencies/bit
Maximum 192 kHz/24 bit
Included items
Digital cable for WALKMAN® (1)
Digital cable for Xperia (1)
Micro-USB cable (1)
Silicone belt (2)
Protection sheet (1)
Startup Guide (1)
Reference Guide (1)
Remove the included items other than the unit by opening the tray under the
unit and removing them.
Operating environment
Compliant OS:
Windows 8.1/Windows 8.1 Pro/Windows 8/Windows 8 Pro
Windows 7
Starter (SP1 or later)/Home Basic (SP1 or later)/Home Premium (SP1 or later)/
Professional (SP1 or later)/Ultimate (SP1 or later)
Windows Vista
Home Basic (SP2 or later)/Home Premium (SP2 or later)/Business (SP2 or
later)/Ultimate (SP2 or later)
Mac OS X (v10.6.8 or later)
CPU: Intel Core 2 Processor 1.6 GHz or better
Memory: 1 GB or better
USB port (USB 2.0 High Speed)
One of the above OS need to be installed to the computer at the factory.
The unit is not guaranteed to operate with all computers.
The unit is not guaranteed to operate with home built computers, operating
systems that are personally upgraded, or multiple operating systems.
The unit is not guaranteed to operate with functions such as standby, sleep,
or hibernation, on any computer.
Design and specifications are subject to change without notice.
(2 1/2× 3/4× 4 3/8in) (w/h/d, projecting parts are not included)
*1When the GAIN select switch is set to “LOW”, the maximum output will be
approx. 150 mV + 150 mV. (PHA-1AEU only)
PORTABLE HEADPHONE AMPLIFIER
CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type.
Photo: PHA-1A

PHA-1A/1AEU
2
Compatible iPhone/iPad/iPod models
You can use the unit with only the following models. Update
your iPhone, iPad or iPod to the latest software before use.
iPhone 6 Plus
iPhone 6
iPhone 5s
iPhone 5c
iPhone 5
iPhone 4s
iPhone 4
iPhone 3GS
iPhone 3G
iPhone
iPad Air 2
iPad mini 3
iPad Air
iPad mini 2
iPad mini
iPad (4th generation)
iPad (3rd generation)
iPad 2
iPad
iPod touch (1st through 5th
generation)
iPod classic 120GB/160GB
(2009)
iPod nano (2nd through 7th
generation)
(As of December 2014)
T
his unit is compatible only with the audio playback functions
iPhones/iPads/iPods.
Depending on the Apple product, there may be significant
electric power required when starting the communication
connected with the unit. The battery power of the unit may be
drained and the unit may turn off if you connect the Apple
product to the unit when the battery power is low. In this case,
charge the unit or use the USB AC adaptor to connect with the
Apple product.
Trademark Notices
WALKMAN® and WALKMAN® logo are registered trademarks of Sony
Corporation.
“Xperia” and “Xperia Tablet” are trademarks of Sony Mobile
Communications AB.
iPad, iPhone, iPod, iPod classic, iPod nano, iPod touch, and Retina are
trademarks of Apple Inc., registered in the U.S. and other countries. iPad Air,
and iPad mini are trademarks of Apple Inc.
“Made for iPod,”“Made for iPhone,” and “Made for iPad” mean that an
electronic accessory has been designed to connect specifically to iPod,
iPhone or iPad, respectively, and has been certified by the developer to
meet Apple performance standards. Apple is not responsible for the
operation of this device or its compliance with safety and regulatory
standards. Please note that the use of this accessory with iPod, iPhone, or
iPad may affect wireless performance.
Macintosh and Mac OS are trademarks of Apple Inc., registered in the U.S.
and other countries.
Microsoft, Windows and Windows Vista are registered trademarks or
trademarks of Microsoft Corporation in the United States and/or other
countries.
All other trademarks and registered trademarks are trademarks or
registered trademarks of their respective holders. In this manual, TM and ®
marks are not specified.
SAFETY-RELATED COMPONENT WARNING!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED LINE
WITH MARK 0ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS
WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0SUR
LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES
PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONC-
TIONNEMENT. NE REMPLACER CES COMPOSANTS QUE
PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DON-
NÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS
PUBLIÉS PAR SONY.
1. SERVICING NOTES ............................................. 3
2. DISASSEMBLY
2-1. Disassembly Flow........................................................... 4
2-2. Bottom Panel................................................................... 4
2-3. Case Block, MAIN Board Block .................................... 5
2-4. Battery Assy (BAT1)....................................................... 5
2-5. MAIN Board ................................................................... 6
2-6. Plate Middle Assy ........................................................... 7
2-7. HP JACK Board.............................................................. 7
3. DIAGRAMS
3-1. Block Diagram................................................................ 9
3-2. Printed Wiring Boards (PHA-1A)................................... 11
3-3. Schematic Diagram
- MAIN Section (1/4) (PHA-1A) - ................................. 12
3-4. Schematic Diagram
- MAIN Section (2/4) (PHA-1A) - ................................. 13
3-5. Schematic Diagram
- MAIN Section (3/4) (PHA-1A) - ................................. 14
3-6. Schematic Diagram
- MAIN Section (4/4) (PHA-1A) - ................................. 15
4. EXPLODED VIEWS
4-1. MAIN Board Section ...................................................... 23
4-2. Battery Section................................................................ 24
5. ELECTRICAL PARTS LIST .............................. 25
Accessories are given in the last of the electrical parts list.
TABLE OF CONTENTS
Note: Refer to service manual supplement-1 for printed wiring board,
schematic diagram and electrical parts list of PHA-1AEU.
Ver. 1.1

PHA-1A/1AEU
3
SECTION 1
SERVICING NOTES
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40 °C higher
than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if
the heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscous (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
The SERVICING NOTES contains important information for servicing. Be sure to read this section before repairing the unit.
DESTINATION ABBREVIATIONS
The following abbreviations for model destinations are used in this
service manual.
• Abbreviations
AUS : Australian model
CH : Chinese model
CND : Canadian model
LA : Latin American model
RU : Russian model
NOTE FOR PARTS REPAIR OF HP JACK AND VOLUME
BOARDS
When HP JACK and VOLUME boards installed in this unit are
defective, replace the complete mounted board or the whole parts
including the complete mounted board. The mounted parts on the
HP HACK and VOLUME boards cannot replace with single.
NOTE FOR REPLACING THE MAIN BOARD OR CASE
When replacing the MAIN board or case, be sure to replace both
parts simultaneously. Among the repair parts, the MAIN board and
case are supplied as one unit.
NOTE FOR REPLACING THE ELECTRICAL PARTS
ON THE MAIN BOARD
The following parts on the MAIN board cannot replace with sin-
gle. When these parts are damaged, replace the complete mounted
board. (Q003, Q004: PHA-1AEU only)
IC001, IC002, IC003, IC101, IC201, IC301, IC401, IC403, IC500,
IC501, IC502, IC503, IC505, IC506, IC507, IC601, IC602, IC701,
IC702, Q001, Q002, Q003, Q004
NOTE OF REPLACING THE IC704 ON THE MAIN
BOARD
Replacement of IC704 on the MAIN board used in this unit re-
quires a special tool.
Ver. 1.1

PHA-1A/1AEU
4
SECTION 2
DISASSEMBLY
• This set can be disassembled in the order shown below.
2-1. DISASSEMBLY FLOW
Note: Follow the disassembly procedure in the numerical order given.
2-2. BOTTOM PANEL
SET
2-3. CASE BLOCK, MAIN BOARD BLOCK
(Page 5)
2-7. HP JACK BOARD
(Page 7)
2-4. BATTERY ASSY (BAT1)
(Page 5)
2-5. MAIN BOARD
(Page 6)
2-6. PLATE MIDDLE ASSY
(Page 7)
2-2. BOTTOM PANEL
(Page 4)
1two screws
(M1.4 u4)
2bottom panel

PHA-1A/1AEU
5
2-3. CASE BLOCK, MAIN BOARD BLOCK
1screw
(M1.4 u2.5)
4case block
3MAIN board block
2Push the MAIN board block
in the direction of the arrow.
Note: When replacing the case, be sure to replace the MAIN board
simultaneously.
Among the repair parts, the MAIN board and case are supplied
as one unit.
2-4. BATTERY ASSY (BAT1)
3Lift up the battery assy (BAT1)
in the direction of the arrow.
2Peel off the battery assy (BAT1)
from the frame sheet.
frame block
4connector
(CN702)
– Frame block battery installation side –
connector
(CN702)
Push the wire inside
of the frame.
frame
battery assy
(BAT1)
:ire settinJ
3astinJSosition oIbattery cXsKion
battery assy
(BAT1)
battery cushion
guide line
(center)
5battery assy (BAT1)
Note 2: When removing the battery assy (BAT1),
the battery assy (BAT1) cannot be reused.
Be sure to replace them with new parts.
1battery cushion
Note 1: When removing the battery cushion from
the battery assy (BAT1), be sure to replace
the battery assy (BAT1) with new parts.

PHA-1A/1AEU
6
2-5. MAIN BOARD
Note 1: When replacing the MAIN board, be sure to replace the case
simultaneously.
Among the repair parts, the MAIN board and case are sup-
plied as one unit.
4four screws
(M1.7 u4.5)
5Lift up the MAIN board in
the direction of the arrow.
7connector (CN002)
6connector (CN001)
hole
boss
boss
hole
3connector (CN303)
2woofer sheet
1frame sheet
8MAIN board
Note 2: When installing the MAIN board,
align two holes and two bosses.
– Frame block battery installation side –
– Frame block MAIN board installation side –
:LUHVHWWLQJ
connector
(CN002)
connector
(CN303) MAIN board
HP JACK board
Pass the wire under the MAIN board.
3DVWLQJSRVLWLRQRIIUDPHVKHHW
:LUHVHWWLQJ
woofer sheet
connector
(CN001)
connector
(CN301)
frame sheet
guide line
guide line

PHA-1A/1AEU
7
2-6. PLATE MIDDLE ASSY
2-7. HP JACK BOARD
4plate middle assy
1screw
(M1.7 u4.5)
frame block
1screw
(M1.7 u4.5)
1screw
(M1.7 u4.5)
2connector
(CN301)
3light guide
– Frame block MAIN board installation side –
1screw
(M1.7 u4.5)
2HP JACK board
ditch
boss
– Frame block MAIN board installation side –
frame block

PHA-1A/1AEU
8
MEMO

PHA-1A/1AEU
PHA-1A/1AEU
99
SECTION 3
DIAGRAMS
3-1. BLOCK DIAGRAM
VOLUME BOARD
3
2
4
1
CN601
INPUT
(FOR PC/WALKMAN/Xperia)
3
2
1
CN602
INPUT
(FOR iPhone/iPad/iPod)
USBDP SDAT_IN_AUX
BCLK_IN_AUX
LRCK_IN_AUX
MCLK_IN
AUX_SW
689
USBDM
5
XMDAC_SDOUT0
93XMDAC_SCLK
94XMDAC_LRCK
95XMDAC_MCLK
XPEE_D0 – XPEE_D7
XPEE_A0 – XPEE_A15
VCCHSRT2
VCCA_U207
VDD33_VF
XPEE_WRN83
XPEE_CEN82
XPEE_RDN84
B+ SWITCH
Q404, 405
B+ SWITCH
Q595, 710
B+ SWITCH
Q711 – 713
B+ SWITCH
Q401, 403
B+ SWITCH
Q501, 502
FLASH MEMORY
IC602
WE
CE
OE
DQ0 – DQ7
A0 – A15
7
30
32
CP_RST
21
CP_SDA13
CP_SCL12
MFI
IC403
RST
SDA
SCL
7
2
6
26SDAT_OUT
27BCLK_OUT
28LRCK_OUT
18MCLK_OUT
54
23
24
25
17
16XGPIO_7
1XSCO
100XSCI
43MUTE 1
44MUTE 2
UHD+38
UHD–37
VBUS-OFF48
45LED1
AUX SWITCH
Q402
AUDIO AMP
IC001
HEADPHONE AMP
IC002
MUTING
SWITCH
Q002
GAIN
CONTROL
IC101
OVER VOLTAGE
PROTECT
IC704
OVER CURRENT
PROTECT
IC509
CURRENT LIMIT
SWITCH
Q719 – 721
CURRENT LIMIT
CONTROL
Q718
X601
12MHz
7CF2
6CF1
X401
12MHz
1SERIAL-SW
46BATT_CK
USB AUDIO PROCESSOR
IC601
USB CONTROLLER
IC401
DIN
BCKIN
LRCIN
SCLK
2
3
1
5
D/A CONVERTER
IC301
R-CH
R-CH
R-CH
VDD33_VF
2/RES VDD33_VF
D+
D–
VBUS
VOLTAGE LEVEL
DETECT
IC705
DC/DC
CONVERTER
IC507
POWER
CONTROL
Q508, 509
POWER
CONTROL
IC511
+3.3V
REGULATOR
IC510
+5V
REGULATOR
IC502
RESET SIGNAL
GENERATOR
IC402
RESET
SWITCH
Q722, 723
3
2
1
CN701
DC IN 5V
DC/DC
CONVERTER
IC500
S591
(WALKMAN/Xperia DETECT)
S592
(SERIAL No. WRITE)
17VOUTLP LOUT
16VOUTLN
12VOUTRP
13VOUTRN
C_LED
RC4
RC3
1
5
6
RC2
7
CHD_PGOOD
4
CHARGE CONTROLLER
IC702
12D+
9RC0
11D–
2TEMP
LIN
PWR_CTRL
HP JACK BOARD
LEFT
RIGHT
DC SERVO
IC003
8RC1
OUT
OUT
10
11
BATTERY CHARGER,
POWER CONTROLLER
IC701
13IN
5EN2
12ILIM
3BAT
6EN1
9CHG
7PGOOD
2BAT
BAT1
LITHIUM ION
SECONDARY BATTERY
LED DRIVE
Q702, 703,
716, 717
VDD33_VF POWER/CHG
D701
RESET SIGNAL
GENERATOR
IC508
SOFT START
SWITCH
Q510 – 513
VDD50_VB
+5V
REGULATOR
IC504
VDD50_VD
+3.3V
REGULATOR
IC512
VDD3_3_DAC
–5V
REGULATOR
IC503
DC/DC
CONVERTER
IC501, Q503
VDDN50_VC
+3.3V
REGULATOR
IC506
VDD33_VF
–5V
REGULATOR
IC505
VDDN50_VE
: iPhone/iPad/iPod
: WALKMAN/Xperia
: AUDIO (ANALOG)
: AUDIO (DIGITAL)
SIGNAL PATH
(GRN)
(RED)
S001
GAIN
HIGHNORMAL
S001
GAIN
HIGHLOW NORMAL
F701
VDDN50_VC
VDD50_VD
GAIN
CONTROL
Q003
+
(PHA-1A)
(PHA-1AEU)
R-ch is omitted due to same
Ver. 1.1

PHA-1A/1AEU
PHA-1A/1AEU
1010
For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF) 50
WV or less are not indicated except for electrolytics and
tantalums.
• All resistors are in Ωand 1/4 W or less unless otherwise
specified.
• C: Panel designation.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
• A: B+ Line.
• B: B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : POWER ON
• Voltages are taken with VOM (Input impedance 10 M).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F: AUDIO (ANALOG)
J: AUDIO (DIGITAL)
E: iPhone/iPad/iPod
j: WALKMAN/Xperia
• The voltage and waveform of CSP (chip size package)
cannot be measured, because its lead layout is different
from that of conventional IC.
For Printed Wiring Boards.
Note:
• X: Parts extracted from the component side.
• Y: Parts extracted from the conductor side.
• : Pattern from the side which enables seeing.
(The other layers’ patterns are not indicated.)
• Waveforms
– MAIN Board –
Caution:
Pattern face side:
(Conductor Side)
Parts face side:
(Component Side)
Parts on the pattern face side seen
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
• Lead layouts
surface
CSP (Chip Size Package)Lead layout of conventional IC
*Replacement of IC704 on the MAIN board used in this unit
requires a special tool.
*Replacement of IC704 on the MAIN board used in this unit
requires a special tool.
Note: When replacing the MAIN board, be sure to re-
place the case simultaneously. Among the repair
parts, the MAIN board and case are supplied as
one unit.
Note: When replacing the MAIN board, be sure to re-
place the case simultaneously. Among the repair
parts, the MAIN board and case are supplied as
one unit. 5IC500 6,7(SW)
2 V/DIV, 500 ns/DIV
750 ns
8 Vp-p
6IC501 9(EXT)
1 V/DIV, 2 Ps/DIV
3.1 Ps
4.1 Vp-p
2IC401 qk (MCLK_OUT)
1 V/DIV, 50 ns/DIV
59.5 ns
4.5 Vp-p
3IC401 wj (BCLK_OUT)
1 V/DIV, 200 ns/DIV
470 ns
4 Vp-p
1IC401 7(CF2)
500 mV/DIV, 50 ns/DIV
83 ns
3 Vp-p
22.4 Ps
3.5 Vp-p
4IC401 wk (LRCK_OUT)
1 V/DIV, 20 Ps/DIV
Note: The components identified by mark 0or
dotted line with mark 0are critical for safety.
Replace only with part number specified.
Note: Les composants identifiés par une marque
0sont critiques pour la sécurité.
Ne les remplacer que par une piéce portant
le numéro spécifié.

PHA-1A/1AEU
PHA-1A/1AEU
1111
3-2. PRINTED WIRING BOARDS (PHA-1A)
Note: The following parts on the MAIN board cannot replace
with single. When these parts are damaged, replace the
complete mounted board.
IC001, IC002, IC003, IC101, IC201, IC301, IC401,
IC403, IC500, IC501, IC502, IC503, IC505, IC506,
IC507, IC601, IC602, IC701, IC702, Q001, Q002
3
18
1
1
4
8
5
24 13
12
1
1
2
4
3
25
36
37 48
13
CN001
R406
CN002
C26
R407
R215
R409 R413
R609
R419
R420 R421
R424
R619
R624
C204
C206
C402
C403
C404
JL001
JL002
JL003
C409
JL008
C410
C411
X401
C412
C414
R450
JL011
R451
CL301
JL012
R452
CL302
C416
R453
CL303
C417
C418
R454
CL111
R456
CL112
CL113
C610
C228
C611 C421
R652
R461
JL601
JL602
JL603
C621
C625
C626
JL030
JL031
C629
1
16
32
17
JL032
JL033
C050
JL034
F701
JL035 JL036
C052
C630
C1
46
31
46
23
1
4
2
14
34
6
3
1
31
C632
C4
C8
C9
Q501 Q502
Q503
IC003
D602
Q510
Q511
Q512
Q513
L500
L504
Q710
Q711
IC401
Q712
IC402
IC403
Q713
IC602
Q722
Q723
R303
R111
R305
R306
R112
R115
R118
R505
L551
R316
R510
1
8
5
1
4
5
106
R511
R512
R513
C104
R141
CN702
C106
R721
C301 C304
C305
Q595
C308
C309
C500
CL005
R731
C501
R732
CL006
C502
CL007
C310
C504
C311
C505
JL102
JL105
JL106
JL107
JL108
CL205
C514
JL111
R551
CL401
CL402
R552
R553
JL113
CL403
JL114
R554
CL404
R555
R556
5
1
6
10
R557
C710
R558
C711
C719
C525
R561
JL121
JL122
R562
C526
C527
C529
R567
R568
R569
C530
R761
R763
R570
R764
R571
R572
R766
R573
R574
R575
R576
R577
R578
R579
R580
C551
C552
C553
C554
C555
C556
R787
C558
R789
C559
Q401
R790
C560
C561
C564
C565
C566
C569
C571
C572
D512
C573
D513
C574
C575
C576
C577
FB0020
IC500
IC501
D719
IC507
IC508
IC509
IC510 IC511
JC105
JC109
JC114
C10
C11
C14
C15
C16
C20
R211
R212
R213
C27 R214
R216
R217
R218
R219
C35
R613
R614
R615
R422
R616
R617
R428
R432
C201
C203
R241
C207 C208
C407
C408
C021
C217
CL109
C608
C609
CL110
R455
R457
R458
R459
X601
R651
R654 R655
C622
C623
C624
C627
C628
C631
25
1100
5051
76
2675
C2
C3
C5
C7
IC001
IC002
Q508
Q509
D603
Q702
Q703
IC201
L503
Q716
Q717
Q718
Q719
IC601
Q720
Q721
R101 R102
R103
R104
R105
R106
R107
R302
R304
R307
R113
R114
R308
R309
R116
R117 6
4
1
1
14
85 10
4
58
1
11
15
5
1
10 6
16
31
45
20
20
11
20
51
11 15
16
6
10
1
3
4
2
4
14
1
15
28
4
4
3
1
2
1
9
12
16
13
5
8
3
1
2
1
4
8
5
36
4
1
3
R119
R502
R310
R311
R318
R319
R708
R320
R709
R321
R714
R715
R521
R716R717
R523
R718
R524
R719
R525
C101
C103
R724
C300
R725
R727
C303
R729
R730
R733
C312
C313
C703
CL208
C706
C707
C709
C515
C516
C517
C518
C712
C713
C714
C520
C521
R751
C716
C522
R752
R753
C523
C524
R563
R564
R759
R566
C720
C721
C722
R760
R4
R5
R769
C541
Q001
R771
C542
Q002
R772
R773
R774
R775
R778
R781 R782 R785
R786
C362
R788
Q402
Q403
Q404
Q405
R791
R792
C567
C568
IC101
C570
D514
D515 IC301
C580
C581
IC502
IC503
IC504
IC505
IC701
JC101
D722
IC702
D723
JC103
IC704

JC104
IC705
JC106
IC512
JC111
JC113
C13
R201
R202
C17
R203
R204
C19
R205
R206
R207
S592
(SERIAL No. WRITE)
41
15
CN601
CN602
S591
1316
85
41
912
FB001
FB002
FB003
R582
FB021
C202
FB101
C102
R793
R581
C724
15
CN701
IC506
S001
D701
C633
MAIN BOARD (COMPONENT SIDE) MAIN BOARD (CONDUCTOR SIDE)
1-894-559-
11
(11)
1-894-559-
11
(11)
SG
S
G
SG S
G
S
S
S
G
G
G
SG
S
G
S
D
D
D
D
D
D
G
AK
K
A
S
D
G
A
K
K
A
S
S
G
SG
IC704
IC506
C3 C2 C1
B3 B2 B1
A3 A2 A1
A1 A2 A4A3
B1 B2 B3
C1C2C3
B4
C4
D1D2D3D4
K
S
G
S
G
SG
S
G
K
KA
A
S
G
SG
S
G
D
S
G
S
SG
SG
D
D
D
D
D
D
D
D
D
D
S
G
G
A
K
A
S
GD
D
SG
A
D
K
G
D
D
D
D
D
D
D
D
GS
DC IN 5V
HP JACK
BOARD
VOLUME
BOARD
WR1
WR2
BAT1
LITHIUM ION
SECONDARY
BATTERY
WALKMAN/Xperia
DETECT
INPUT
(FOR PC/WALKMAN/Xperia)
INPUT
(FOR iPhone/iPad/iPod)
S001
-2
-1
GAIN
NORMALHIGH
D701
(GRN)
(RED)
POWER/CHG
A
B
C
D
E
F
G
H
I
1 2 3 4 5 6 7 8 9 10
KKA
• : Uses unleaded solder.

PHA-1A/1AEU
PHA-1A/1AEU
1212
5
0
1.6
3.3
0 0 0 0 1.6 0 1.6 0
43
2
1
0
0
3.3
1.7
1.8
3.3
0
2.8
0
3.3
5
3.9
0
0
3.3 1.6 1.8 3.3 3.3 3.3
3.3
0 0 0 0 0 0 0 0
0
0
3.3
3.3
1.8
0
3.3
3.3
3.3
3.3
0
0
0
0
0
0
3.3
2.5
3.3
0
0
0
3.3
0
0
0
0
0
0
0
0
3.2
3.2
3.2
3.2
0.9
3.3
0 3.3 0 0 0 3.3 3.3 3.3 0 0 0 0 0 0 0 0
0
3.2
0.9
0
0
0
0
0
0
3.3
3.3
0
0
0
0
0
0
0
3.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3.3
0
0
3.3
0
3.1
5
2.4
2.4
2.4
5
1.6
0
1.6
1.8
3.3
5
2.4
2.4
2.4
3.3 3.3 3.3
0
CN601
1
5
VDD33_VF
VDD50_VG
BATT_CHECK
VDD50_VD
DACOUT_LN
DACOUT_RP
DACOUT_RN
DACOUT_LP
BATT_STATUS
PGND
S
LSK3541FS8T2L
Q402
LC87F17C8AUWA-2H
IC401
1
SERIAL-SW
2
/RES
3
XT1
4
NC
5
VSS1
15
VBUS_SW
16
AUX_SW
17
MCLK_IN
32
OPT_7
33
OPT_8
34
SDAT_IN
35
BCLK_IN
36
LRCK_IN
44
MUTE 2
45
LED1
46
BATT_CK
47
NC
48
VBUS-OFF
13
CP_SDA
14
–
6
CF1
7
CF2
8
VDD1
9
OPT_1
10
OPT_2
11
OPT_3
12
CP_SCL
18
MCLK_OUT
19
VDD2
20
VSS2
21
CP_RST
22
NC
23
SDAT_IN_AUX
24
BCLK_IN_AUX
27
BCLK_OUT
28
LRCK_OUT
29
OPT_4
30
OPT_5
31
OPT_6
25
LRCK_IN_AUX
26
SDAT_OUT
39
VDD3
40
VSS3
41
UFILT
42
AFILT
43
MUTE 1
37
UHD–
38
UHD+
CM6631A
IC601
XSCO
1
VCCHSRT
2
GNDHSRT
3
RREF
4
USBDM
5
XHDA_SDO
28
VCC3V
29
XMADC_SDIN0
30
XPEE_A6
71
XPEE_A7
72
VCC3V
73
XPEE_A8
74
XPEE_A9
75
XSEL_PWR
96
VCC3V
97
XRST
98
XTEST
99
XSCI
100
XHDA_SYNC
26
XHDA_RST
27
USBDP
6
VCCA_U20
7
GNDA_U20
8
VCC3V
9
VCC
10
GND
11
XGPI_0
12
XMADC_SCLK
31
XMADC_MCLK
32
XMADC_LRCK
33
X2ADC_SDIN
34
X2ADC_SCLK
35
X2ADC_LRCK
36
X2ADC_MCLK
37
XPEE_A1
66
XPEE_A2
67
XPEE_A3
68
XPEE_A4
69
XPEE_A5
70
XMSCL
64
XPEE_A0
65
NC
91
NC
92
XMDAC_SCLK
93
XMDAC_LRCK
94
XMDAC_MCLK
95
XMDAC_SDOUT0
89
NC
90
XGPI_1
13
XGPI_2
14
XGPI_3
15
XGPI_4
16
XGPI_5
17
GND
18
XPWDN
19
XD6
20
XD7
21
XD0
22
XD1
23
XHDA_BCLK
24
XHDA_SDI
25
XSPDIFO_0
38
GND
39
XSPDIFI_0
40
XPEE_D0
41
XPEE_D1
42
XPEE_D2
43
XPEE_D3
44
XPEE_D4
45
XPEE_D5
46
XPEE_D6
47
XPEE_D7
48
XGPIO_8
49
XGPIO_9
50
XGPIO_11
52
VCC3V
53
XGPIO_7
54
XRSTO
55
XSSDA
56
XSSCL
57
XGPIO_12
58
XGPIO_13
59
XGPIO_14
60
GND
61
XGPIO_15
62
XMSDA
63
XGPIO_10
51
XPEE_A11
77
XPEE_A12
78
XPEE_A13
79
XPEE_A14
80
XPEE_A15
81
XPEE_CEN
82
XPEE_WRN
83
XPEE_RDN
84
X2DAC_MCLK
85
X2DAC_LRCK
86
X2DAC_SCLK
87
X2DAC_SDOUT
88
XPEE_A10
76
PST8428UL
IC402
GND
1VDD
2
CD
3
OUT
4
MFI337S3959
IC403
GND
1
SDA
2
NC_3
3
NC_4
4
NC_5
5
SCL
6
RST
7
VCC
8
WM8740SEDS/RV
IC301
LRCIN
1
DIN
2
BCKIN
3
MODE8X
4
SCLK
5
DIFFHW
6
DGND
7
DVDD
8
AVDDR
9
AGNDR
10
VMIDR
11
VOUTRP
12
VOUTRN
13
AGND
14
AVDD
15
VOUTLN
16
VOUTLP
17
VMIDL
18
AGNDL
19
AVDDL
20
ZERO
21
RSTB
22
CSBIWO
23
MODE
24
MUTEB
25
MD/DM0
26
MC/DM1
27
ML/I2S
28
SST39LF010-55-4C-WHE
IC602
A11
1
A9
2
A8
3
A13
4
A14
5
NC_6
6
WE
7
VCC
8
NC_9
9
A16
10
A15
11
A12
12
A7
13
A6
14
A5
15
A4
16
A3
17
A2
18
A1
19
A0
20
DQ0
21
DQ1
22
DQ2
23
VSS
24
DQ3
25
DQ4
26
DQ5
27
DQ6
28
DQ7
29
CE
30
A10
31
OE
32
12MHz
X401
12MHz
X601
WM_VBUS
JL601
JL602
JL603
V_OUT
WM_XDET
S
RAF040P01TCL
Q401
CN602
VBUS
D–
D+
GND
S
LSK3541FS8T2L
Q403
HP_XMUTE1
HP_XMUTE2
VDD3_3_DAC
S
RAF040P01TCL
Q404
S
LSK3541FS8T2L
Q405
PWR_CTRL
8p
C609
8p
C608
0.1
C632
R651
1M
12k
R609
10
C611
2.2
C627
0.1
C630
0.1
C631
1
C610
1M
R458
470k
R459
470k
R655
100k
R453
2200p
C626
0.1
C622
100k
R455
2.2k
R614
2.2k
R615
4.7k
R619
0
R613
0.1
C623
0.1
C629
2.2k
R616
2.2k
R617
0.1
C624
0.1
C411
0.001
C421
0.001
C412
100k
R413
4.7k
R419
0
R624
100k
R457
1k
R461
10p
C417
10p
C416
0.1
C402
0.1
C414
0
R420
100k
R454
0
R424
4.7k
R421
22k
R422
R428
10k100k
R450
0
R451
0
R452
150
R409
33
R407
33
R406
0.1
C404
2.2
C408
1
C409
4.7
C410
2.2
C403
0.1
C628
0.1
C407
1SS400SMGJT2R
D603
10k
R654
470k
R456
10
C304
10
C305
0.1
C217
0.1
C362
10
C300
0.1
C303
10
C301
10
C311
10
C308
0.1
C309
0.1
C310
0
R308
0R309
10kR302
100R304
100R305
100
R307
0R310
100R306
0
R311
100R303
0.1
C313
10
C312
0.1
C621
0.1
C418
0.1
C625
CL401
CL404
CL402
CL403
10
C228
1SS400SMGJT2R
D602
100k
R652
CL205
CL208
S591
S592
DAC_LRCLK
DAC_BCLK
DAC_SDATA
DAC_MCLK
USB_MCLK
DAC_LRCLK
DAC_SDATA
DAC_BCLK
DAC_MCLK
DACOUT_RP
DACOUT_RN
DACOUT_LP
DACOUT_LN
USB_MCLK
USB_LRCLK
USB_BCLK
USB_SDATA
DAT00 DAT01 DAT02 DAT03 DAT04 DAT05 DAT06 DAT07
OE
WE
CE
ADD15 ADD14 ADD13 ADD12
ADD11
ADD10
ADD11
ADD09
ADD08
ADD13
ADD14
WE
ADD15
ADD12
ADD07
ADD06
ADD05
ADD04 ADD03
ADD02
ADD01
ADD00
DAT00
DAT01
DAT02
OE
ADD10
CE
DAT07
DAT06
DAT05
DAT04
DAT03
BATT_STATUS
BATT_CHECK
DACOUT_LP
DACOUT_LN
DACOUT_RP
DACOUT_RN
SPI_SDA
SPI_SCL
SPI_RESET
SPI_SDA
USB_SDATA
USB_LRCLK
USB_BCLK
ENU_RDY
BATT_STATUS
AUX_SW
HP_XMUTE1 HP_XMUTE2
HP_XMUTE1
HP_XMUTE2
AUX_SW
ADD09
ADD08
ADD07
ADD06
ADD05
ADD04
ADD03
ADD02
ADD01
ADD00
ENU_RDY
SPI_SCL
SPI_RESET
BATT_CHECK
IC601
USB AUDIO PROCESSOR
IC602
FLASH MEMORY
IC301
D/A CONVERTER
IC402
RESET SIGNAL GENERATOR
IC401
USB CONTROLLER
IC403
MFI
MAIN BOARD (1/4)
AUX SWITCH
MAIN
BOARD
>006S
(3/4)
(For PC/WALKMAN/Xperia)
INPUT
DETECT
WALKMAN/Xperia
(SERIAL No. WRITE)
Q401, 403
B+ SWITCH
MAIN
BOARD
>005S
(4/4)
Q404, 405
B+ SWITCH
(For iPhone/iPad/iPod)
INPUT
1
4
MAIN
BOARD
>003S
(3/4)
MAIN
BOARD
>004S
(2/4)
MAIN
BOARD
>002S
(2/4)
MAIN
BOARD
>001S
(4/4)
10 11 12 13 14 15
G
16
H
17
I
18
F
M
1
C
J
D
6
E
K
L
2
B
3
A
45 7 1989
0
C633
470p
R432
3-3. SCHEMATIC DIAGRAM - MAIN Section (1/4) (PHA-1A) - • See page 10 for Waveforms. • See page 16 for IC Block Diagrams. • See page 18 for IC Pin Function Description.
Note: The following parts on the MAIN board cannot replace with single.
When these parts are damaged, replace the complete mounted board.
IC301, IC401, IC403, IC601, IC602
(Page 15)
(Page 13)
(Page 13)
(Page 14)
(Page 15)
(Page 14)
Ver. 1.1

PHA-1A/1AEU
PHA-1A/1AEU
1313
3-4. SCHEMATIC DIAGRAM - MAIN Section (2/4) (PHA-1A) - • See page 16 for IC Block Diagrams.
Note: The following parts on the MAIN board cannot replace with single.
When these parts are damaged, replace the complete mounted board.
IC001, IC002, IC003, IC101, IC201, Q001, Q002
5
-4.9
0
0
-4.9
0
-4.9
0
-4.9
0
0
-4.9
0
5
5
0
0 0 5 0
-4.9
0
3.3
0
1.1 1.1
0
4.9
-4.9 1.1 1.1 0
0 0 5 0 -4.9
0 3.3 0
0 3.3 0
3.3
0 0
8P
CN001
1ROUT
2GND
3RIN
4GND
5LOUT
6PWR_CTRL
7LIN
8VOUT
DACOUT_LP
DACOUT_LN
DACOUT_RN
VDDN50_VE
VDDN50_VC
VDD50_VD
DACOUT_RP
VDD50_VB
V_OUT
PWR_CTRL
PGND
LMP7708MAX/NOPB
IC003
1
2
3
V–
45
6
7
V+
8
TS12A12511DCNR
IC201
1
2
GND
3
V+
4
NC_5
5
6
V–
7
8
TS12A12511DCNR
IC101
1
2
GND
3
V+
4
NC_5
5
6
V–
7
8
LME49860MAX/NOPB
IC001
1 2 3
V–
45
6 7
V+
8
TPA6120A2DWPR
IC002
LVCC–
1 2
LVCC+
3 4 5
NC_6
6
NC_7
7
NC_8
8
NC_9
9
NC_10
10
NC_11
11
NC_12
12
NC_13
13
NC_14
14
NC_15
15 16 17
RVCC+
18 19
RVCC–
20
3P
CN002
1 LEFT
2GND
3 RIGHT
DG
DSG
S
SSM6N58NU, RSONYF
Q001
DG
DSG
S
SSM6N58NU, RSONYF
Q002
HP_XMUTE1
HP_XMUTE2
6.3V
100
C14
6.3V
100
C8
0.1
C5
0.1
C11
1
C20
1
C19
0.01
C021
1M
R4 1k
R119
1k
R219
1k
R5
1
C17
1
C35
0.1
C3
0.1
C2
470p
C101
C201
470p
C103
470p
6.3V
100
C1
6.3V
100
C4
2.4k
R106
2.4k
R101
150
R103
150
R105
3k
R102
3k
R104
2.4k
R201
10V
22
C106
R107
100
JL031
JL032
JL035
JL036
JL033
JL034
JL030
22k
R111
1k
R112
0
R118
1
C104
0
R116
1k
R114
200k
R141
150k
R113
100k
R316
100
R207
22k
R211
1k
R212
0
R218
10V
22
C206
C202
0.0039
C203
470p
2.4k
R206
150
R203
3k
R204
3k
R202
150
R205
1
C204
150k
R213
1k
R214
200k
R241
0
R216
10
R217
0.1
C7
0.1
C13
16V
10
C10
16V
10
C16
100k
R321
22k
R320
1
C208
FB002
FB001
1
C207
22k
R319
100k
R318
10
R117
CL302
CL303
CL301
16V
10
C15
16V
10
C26
0.1
C27
0.1
C9
200k
R215
200k
R115
0.1
C052
0.1
C050
C102
0.0039
0
FB003
PWR_CTRL
DACOUT_LN
DACOUT_LP
DACOUT_RP
DACOUT_RN
DACOUT_LN
DACOUT_LP
DACOUT_RP
DACOUT_RN
HP_LIN
HP_XMUTE1
OPAMP_ROUT
OPAMP_LOUT
OPAMP_LIN
PWR_CTRL
HP_RIN
OPAMP_RIN
HP_LIN
OPAMP_LOUT
OPAMP_LIN
HP_XMUTE1 HP_XMUTE2
OPAMP_RIN
OPAMP_ROUT
HP_XMUTE2
HP_RIN
GAIN_SW
PWR_CTRL
GAIN_SW
HEADPHONE AMP
IC002
DC SERVO
IC003
AUDIO AMP
IC001
GAIN CONTROL
IC101
GAIN CONTROL
IC201
(2/4)MAIN BOARD
MUTING SWITCH
31
46
31
46
MUTING SWITCH
S001
-1-2
GAIN
NORMAL
HIGH
WR1
BOARD
VOLUME
HP JACK
WR2
BOARD
MAIN
BOARD
>004S
(1/4)
MAIN
BOARD
>007S
(3/4)
MAIN
BOARD
>008S
(3/4)
MAIN
BOARD
>002S
(1/4)
MAIN
BOARD
>009S
(4/4)
10 11 12 13 14 15
G
16
H
I
F
1
C
J
D
6
E
2
B
3
A
45 789
(Page 15)
(Page 12)
(Page 14)
(Page 14)
(Page 12)
Ver. 1.1

PHA-1A/1AEU
PHA-1A/1AEU
1414
3-5. SCHEMATIC DIAGRAM - MAIN Section (3/4) (PHA-1A) - • See page 10 for Waveforms. • See page 16 for IC Block Diagrams.
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
3.2
4
2.9
4
0
0
3.9
3.9
3.4
0
0
3.3
3.3
3.4
4
0
0
4
3.4
3.3
4
0
1.2
4
1.2
1.2
2
3.4
2.8
4.9
4.9
4
4.9
4
3.5
-5.8
-4.9
5.85.8
5.8
4.9
5.8
-5.8
-1.1
5.8
0
2.8
4
4
4.9
0.3
4.9
4
4
4
0
-1.8
5.8
3.3
5.8
4.9
-4.9
-1.1
5
5
04
3.9 4 4 4 4
0.3 1.2
4
-5.8 -4.9
5.8 5
6
5
V_OUT
PWR_CTRL
VDDN50_VC
VDD33_VF
VDD50_VD
VDD50_VB
VDDN50_VE
VDD50_VG
PGND
JL111
RP601Z330A-E2-F
IC506
MODE
A1
GND_A2
A2
AVIN
A3
PVIN
A4
BULX_B4
B4
CE
C1
PG
D1
GND_D2
D2
VOUT_D3
D3
VOUT_D4
D4
GND_B2
B2
BULX_B3
B3
BP
B1
GND_C2
C2
BOLX_C3
C3
BOLX_C4
C4
TPS7A3301RGWR
IC503
OUT_1
1
NC_2
2
FB
3
NC_4
4
NC_5
5
NC_8
8
NC_9
9
NC_10
10
NC_11
11
NC_12
12
EN
13
NR/SS
14
IN_15
15
IN_16 16
NC_17 17 NC_18 18 NC_19 19
OUT_20 20
NC_6
6
GND
7
MM3411A50URE
IC504
CE
1
GND
2
VOUT
3
VDD
4
TPS61087DRCR
IC500
COMP
1
FB
2
EN
3
AGND
4
PGND
5
SW
6
SW
7
IN
8
FREQ
9
SS
10
NJM2827F3-05(TE1)
IC505
GND
1
VIN
2
VOUT
3
NC
4
CS
5
S
RU1C001UNTCL
Q502
MAX1846EUB+T
IC501
VL
1
FREQ
2
COMP
3
REF
4
FB
5GND 6
PGND 7
CS 8
EXT 9
IN 10
TPS2553DBVR
IC509
IN
1GND
2EN
3
FAULT
4
ILIM
5
OUT
6
S
RU1C001UNTCL
Q508
RST_OUT
RP402N501E-TR-FE
IC507
LX
1
GND
2
CE
3
VIN
4
VOUT
5
TPS7A4700RGWR
IC502
OUT_1
1
NC_2
2
SENSE
3
6P4V2
4
6P4V1
5
1P6V
8
0P8V
9
0P4V
10
0P2V
11
0P1V
12
EN
13
NR
14
IN_15
15
IN_16 16
NC_17 17 NC_18 18 NC_19 19
OUT_20 20
3P2V
6
GND
7
S
RAF040P01TCL
Q503
S
RAF040P01TCL
Q501
S
RAF040P01TCL
Q509
PST8431UL
IC508
GND
1
VDD
2
CD
3
OUT
4
74LVC1G175GW-125
IC511
1
CLK
2
GND
3
D
4
Q5
VCC
6
/CLR
S
LSK3541FS8T2L
Q510
S
LSK3541FS8T2L
Q511
S
LSK3541FS8T2L
Q512
S
LSK3541FS8T2L
Q513
MM3411A33URE
IC510
CE
1
GND
2
VOUT
3
VDD
4
VDD3_3_DAC
MM3411A33URE
IC512
CE
1
GND
2
VOUT
3
VDD
4
0
R580
1
C571
2.2
C572
100k
R505
1M
R571
10k
R568
1M
R569
0
R570
10V
100
C530
0.01
C573
0.01
C574
100k
R581
0.1
C502
16V 10V
10
C501
0.1
C500
0.1
C505
0.0012
C514
100
C504
18k
R512
68k
R513
33k
R510
1.2k
R511
1
C559
10V
100
C560
1W
R555
0.05
22k
R554
47k
R552
27k
R553
43k
R556
2.2k
R582
10k
R557
100k
R551
0.1
C556
0.1
C555
0.47
C553
220p
C554
68p
C558
16V
10
C551
0.1
C552
RSX101M-30FJTR
D513
0
R558
1
C561
22
C568
0.01
C542
1k
R524R525
330k
100k
R523
0.47
C516
0.47
C515
0.47
C580
0.47
C581
C520
10
0.047
C518
0.47
C517
22
C524
0.1
C565
10
C566
22
C523
30k
R561
FB101
22
C522
1
C521
100k
R567
100k
R562
10
C527
10
C525
0.1
C564
10
C526
470k
R564
470k
R563
1SS400SMGJT2R
D515
1SS400SMGJT2R
D514
10k
R566
10k
R576
220k
R573
100k
R574
0
R577
1M
R578
220k
R572
1
C576
0.001
C529
0.1
C575
2.2
C577
10k
R579
10k
R575
10
C569
100k
R502
CL110
CL109
10
C570
1
C541
0
R521
CL112
CL111
22
C567
JL113
JL102
JL121
JL114
JL107
JL108
CL113
JL106
JL105
RSX101M-30FJTR
D512
JL122
0
JC101
0
JC113
0
JC103
0
JC105
0
JC104
0
JC109
0
JC106
0
JC114
0
JC111
1uH
L503
PGND
PGND
VDD50_VD
VDD50_VG
VDD33_VF2.2uH
L504
3.3uH
L500
L551
15uH
IC503
IC504 IC512
IC502
IC505
-5V REGULATOR
IC509
OVER CURRENT PROTECT
IC506
+3.3V REGULATOR
IC507
DC/DC CONVERTER
IC501
IC500
DC/DC CONVERTER
IC508
RESET SIGNAL GENERATOR
IC510
SOFT STARTSWITCH
IC511
POWER CONTROL
MAIN BOARD (3/4)
CSP
(Chip Size Package)
MAIN
BOARD
>006S
(1/4)
MAIN
BOARD
>008S
(2/4)
MAIN
BOARD
>003S
(1/4)
MAIN
BOARD
>011S
(4/4)
Q508, 509
POWER CONTROL
-5V REGULATOR
+3.3V REGULATOR+5V REGULATOR
+5V REGULATOR
DC/DC CONVERTER
DC/DC CONVERTER
+3.3V REGULATOR
Q510 - 513
B+ SWITCH
Q501, 502
MAIN
BOARD
>007S
(2/4)
MAIN
BOARD
>010S
(4/4)
10 11 12 13 14 15
G
16
H
17
I
18
F
201
C
J
D
6
E
K
L
2
B
3
A
45 7 1989
(Page 15)
(Page 13)
(Page 15)
(Page 12)
(Page 13)
(Page 12)

PHA-1A/1AEU
PHA-1A/1AEU
1515
3-6. SCHEMATIC DIAGRAM - MAIN Section (4/4) (PHA-1A) - • See page 16 for IC Block Diagrams. • See page 18 for IC Pin Function Description.
Note: The following parts on the MAIN board cannot replace with single.
When these parts are damaged, replace the complete mounted board.
IC701, IC702
0
0
0
0
0
0
0
0
0
05
0
00
0
0
4.7
0
0
04.7
0
0
0
0
0
0
0
0
0
0
3.3
00
3
2.8
00
0
0
0
0
0
0
0
0
0
0
3.3
0
0
0 0
4.1 4.1
0 0 0 0 0 4 4 0
CN701
3P
CN702
1BATT–
2BATTTH
3BATT+
CL-375HR/YG-D-TS
D701
BATT_STATUS
V_OUT
BATT_CHECK
PGND
JL002
JL001
JL003
SLSK3541FS8T2L
Q702
BD6047AGUL-E2
IC704
IN_A1
A1
IN_A2
A2
IN_A3
A3
IN_B1
B1
IN_B2
B2
GND
B3
OUT_C1
C1
OUT_C2
C2
FLGB
C3
BQ24073RGTR
IC701
TS
1
BAT
2
BAT
3
CE
4
VSS
8
CHG
9
IN
13
TMR
14
TD
15
ISET
16
EN1
6
PGOOD
7
EN2
5
OUT
10
OUT
11
ILIM
12
PIC16F1455T-I/ML
IC702 1
C_LED
2
TEMP
3
RST
4
CHD_PGOOD
RC1
8
RC0
9
VSS
13
NC
14
NC
15
VDD
16
RC3
6
RC2
7
RC4
5
VUSB3V3
10
D–
11
D+
12
JL012
JL011
WM_VBUS
VDD50_VG
WM_XDET
S
RU1C001UNTCL
Q712
S
RU1C001UNTCL
Q713
RST_OUT
S LSK3541FS8T2L
Q703
S
RU1C001UNTCL
Q710
S
RAF040P01TCL
Q711
S
RAF040P01TCL
Q595
SLSK3541FS8T2L
Q716
VDD33_VF
S LSK3541FS8T2L
Q717
SLSK3541FS8T2L
Q718
S
LSK3541FS8T2L
Q719
S
LSK3541FS8T2L
Q720
S
LSK3541FS8T2L
Q721
PST8431UL
IC705
GND
1VDD
2
CD
3
OUT
4
S
LSK3541FS8T2L
Q722
S
RAF040P01TCL
Q723
100k
R730
100k
R761
100k
R729
470k
R763
100k
R764
100k
R766
R760
470
1SS400SMGJT2R
D719
0.1
C706
4.7
C707
1
C703
R715
100k
R714
100k
10k
R716
10k
R717
FB0020
JL008
R719
1M
R718
1M 0.47
C709
2.2
C714
0.1
C710
68k
R725
3.3k
R792
2.7k
R775
1.2k
R727
100k
R721
750
R733
1
C712
4.7
C716R753
0
10k
R724
10
C713
1SS400SMGJT2R
D723
FB021 R759
68
R791
100 22k
R788
470k
R789
2.2k
R790
470k
R787
0.1
C720
0.001
C721
22
C722 C719
4.7
1
C724
100k
R782
47k
R785
100k
R778
100k
R786
100k
R781
1SS400SMGJT2R
D722
32V
3.15A
F701
10
C711
1M
R732
330k
R731
470k
R793
10k
R769
0
R772
100k
R751
3.3k
R708
100k
R752
10k
R771
100k
R773
10k
R774
1k
R709
CL005
CL006
CL007
V_OUT
V_OUT
BATT_STATUS
BATT_CHECK
BATT_STATUS
BATT_CHECK
IC702
CHARGE
IC701
BATTERY CHARGE,
(4/4)MAIN BOARD
IC705
VOLTAGE LEVEL DETECT
IC704
OVER VOLTAGE PROTECT
5
1
DC IN 5V
CONTROLLER
CSP

(Chip Size Package)
Q711 - 713
B+ SWITCH
Q595, 710
B+ SWITCH
Q722, 723
RESET SWITCH
Q703, 717
LED DRIVE
Q702, 716
LED DRIVE
(GRN) (RED)
POWER/CHG
LITHIUM ION
SECONDARY BATTERY
BAT1
Q719 - 721
CURRENT LIMIT SWITCH
CURRENT LIMIT
CONTROL
POWER CONTROLLER
(1/4)
MAIN
BOARD
>005S
(3/4)
MAIN
BOARD
>010S
(3/4)
MAIN
BOARD
>011S
(1/4)
MAIN
BOARD
>001S
(2/4)
MAIN
BOARD
>009S
10 11 12 13 14 15
G
16
H
17
I
F
1
C
J
D
6
E
2
B
3
A
45 789
(Page 13)
(Page 12)
(Page 14)
(Page 14)
(Page 12)

PHA-1A/1AEU
PHA-1A/1AEU
1616
• IC Block Diagrams
– MAIN Board –
IC301 WM8740SEDS/RV
IC402 PST8428UL
IC508, 705 PST8431UL
IC500 TPS61087DRCR
VOUTLP
321 114 8
20 19
BCKIN
DIN
LRCIN
VMIDR
MODE8X
9
AVDDR
6
DIFFHW
5
SCLK
7
DGND
DVDD
10 12
VOUTRP
13
VOUTRN
14
AGND
AGNDR
AVDDL AGNDL
DIGITAL
FILTERS
SIGMA
DELTA
MODULATOR
RIGHT
DAC
LOW-PASS
FILTER
LOW-PASS
FILTER
CONTROL INTERFACE
18
VMIDL
17
VOUTLN
16
AVD D
1528
ML/I2S
LEFT
DAC
SIGMA
DELTA
MODULATOR
SERIAL
INTERFACE
MUTING/
ATTENUATOR
MUTING/
ATTENUATOR
MUX
MUX
27
MC/DM1
26
MD/DM0
25
MUTEB
24
MODE
23
CSBIWO
21
ZERO
22
RSTB
GND 1
VDD 2
+
–
VREF
OUT4
CD
3
1
COMP
4
AGND
5
PGND
2
FB
3
EN
6
SW
10
SS
7
SW
8
IN
9
FREQ
+
–
T-off GENERATOR
PWM
GENERATOR
GM
AMPLIFIER
T-on
Vref
CURRENT LIMIT
AND
SOFT START
GATE DRIVER OF
POWER
TRANSISTOR
UVLO
THERMAL SHUTDOWN
–
+
IC501 MAX1846EUB+T
IC503 TPS7A3301RGWR IC504 MM3411A50URE
IC510, 512 MM3411A33URE
IC502 TPS7A4700RGWR
VL 1
FREQ 2
COMP 3
REF 4
FB 5
10 IN
9 EXT
8CS
7PGND
6GND
STARTUP
CIRCUITRY
CONTROL
CIRCUITRY
VL
REGULATOR
SLOPE
COMP
UNDER-
VOLTAGE
LOCK OUT
ERROR
COMPARATOR
CURRENT
SENSE
AMPLIFIER
EXT
DRIVER
ERROR
AMPLIFIER
OSCILLATOR
SOFT-START
REFERENCE

+
+


+ +
1OUT
2NC
3SENSE
46P4V2
56P4V1
6
3P2V
7
GND
8
1P6V
9
0P8V
10
0P4V
20
OUT
19
NC
18
NC
17
NC
16
IN
15 IN
14 NR
13 EN
12 0P1V
11 0P2V
CURRENT
LIMIT
FAST
CHARGE
THERMAL
SHUTDOWN UVLO
BAND GAP

+

+
+
–
1OUT
2NC
3FB
4NC
5NC
6
NC
7
GND
8
NC
9
NC
10
NC
20
OUT
19
NC
18
NC
17
NC
16
IN
15 IN
14 NR/SS
13 EN
12 NC
11 NC
–
+
+
–
CURRENT
LIMIT
THERMAL
SHUTDOWN
ENABLE
UVLO
BAND GAP
PASS DEVICE
ERROR
AMP
VOUT
3
CE 1
GND 2
VDD
4
+
–
VOLTAGE
REFERENCE
CURRENT
LIMIT
BIAS
IC505 NJM2827F3-05 (TE1)
IC507 RP402N501E-TR-FE
IC506 RP601Z330A-E2-F
5
CS
4
NC
2
VIN
3
VOUT
1
GND
BAND GAP
REFERENCE
CURRENT
LIMIT
THERMAL
PROTECTION
A1
A2
MODE
GND
AVI N
PVIN
BP
GND
BULX BULX
VOUT VOUT GND PG
BOLX
BOLX
GND
CE
CE
UVLO
TSHUT
PG
BUCK/BOOST
CTRL
MODE CTRL
A3
A4
B1 B2 B3 B4
C1
C2
C3
C4
D1D2D3D4
1
LX
2
GND
3
CE
4
VIN
5
VOUT
SWITCHING
CONTROLLER
PWM
CONTROLLER –
+
OSCILLATOR
OVER VOLTAGE
PROTECTION
VFM
CONTROLLER
CHIP
ENABLE
SOFT
START
VREF
REVERSE
DETECTOR
POWER
CONTROLLER
STARTUP
CIRCUIT
BACKGATE
CONTROLLER
RAMP
COMPENSATION
CURRENT
PROTECTION
CURRENT
FEEDBACK
SHORT
PROTECTION
LATCH
TIMER
+

PHA-1A/1AEU
17
IC509 TPS2553DBVR IC511 74LVC1G175GW-125
IC704 BD6047AGUL-E2
GND 2
EN 3
IN 1
4FAULT
5 ILLM
6OUT
CHARGE
PUMP
UNDERVOLTAGE
LOCKOUT
THERMAL
SENSE
CURRENT
LIMIT
4-ms
DEGLITCH
8-ms
DEGLITCH
CURRENT
SENSE
DRIVER
+
–
RREVERSE VOLTAGE
COMPARATOR
D
CP
MR
D 3
GND
CP
2
1
6
VCC
5
MR
4
Q Q6
A1IN
IN
IN
A2
A3
B1
IN IN
GND
B2 B3
OUT
OUT
C1
FLGBC3
TIMING
GENERATOR
UVLO
VREF
OVLO
OCP
TSD
OSC
INITIAL
DELAY
NVP
GATE
DRIVER
INITIAL
DELAY
C2

PHA-1A/1AEU
18
• IC Pin Function Description
MAIN BOARD IC401 LC87F17C8AUWA-2H (USB CONTROLLER)
Pin No. Pin Name I/O Description
1 SERIAL-SW I Serial No. write mode switch input terminal “H”: serial No. write mode
2 /RES I Reset signal input terminal “L”: reset
3 XT1 I System clock input terminal Not used
4 NC O Not used
5 VSS1 - Ground terminal
6 CF1 I System clock input terminal (12 MHz)
7 CF2 O System clock output terminal (12 MHz)
8 VDD1 - Power supply terminal (+3.3V)
9 to 11 OPT_1 to OPT_3 I Hardware option input terminal Not used
12 CP_SCL O Serial data transfer clock signal output to the MFI
13 CP_SDA I/O Two-way serial data bus with the MFI
14 — I Not used
15 VBUS_SW I VBUS current selection signal input terminal Fixed at “L” in this unit
16 AUX_SW I AUX selection signal input terminal
17 MCLK_IN I Digital audio master clock signal input from the USB audio processor
18 MCLK_OUT O Digital audio master clock signal output to the D/A converter
19 VDD2 - Power supply terminal (+3.3V)
20 VSS2 - Ground terminal
21 CP_RST O Reset signal output to the MFI “L”: reset
22 NC O Not used
23 SDAT_IN_AUX I Digital audio data input from the USB audio processor
24 BCLK_IN_AUX I Digital audio bit clock signal input from the USB audio processor
25 LRCK_IN_AUX I Digital audio L/R sampling clock signal input from the USB audio processor
26 SDAT_OUT O Digital audio data output to the D/A converter
27 BCLK_OUT O Digital audio bit clock signal output to the D/A converter
28 LRCK_OUT O Digital audio L/R sampling clock signal output to the D/A converter
29 to 33 OPT_4 to OPT_8 I Hardware option input terminal Not used
34 SDAT_IN I Digital audio data input terminal Not used
35 BCLK_IN I Digital audio bit clock signal input terminal Not used
36 LRCK_IN I Digital audio L/R sampling clock signal input terminal Not used
37 UHD– I/O Two-way USB data (–) bus with the INPUT (for iPhone/iPad/iPod) connector
38 UHD+ I/O Two-way USB data (+) bus with the INPUT (for iPhone/iPad/iPod) connector
39 VDD3 - Power supply terminal (+3.3V)
40 VSS3 - Ground terminal
41 UFILT - USB interface PLL filter terminal
42 AFILT - Audio PLL filter terminal
43 MUTE 1 O Audio (L-ch) muting on/off control signal output terminal “L”: muting on
44 MUTE 2 O Audio (R-ch) muting on/off control signal output terminal “L”: muting on
45 LED1 O LED drive signal output terminal for the POWER/CHG indicator (green color) “H”: LED on
46 BATT_CK I Battery level check terminal
47 NC O Not used
48 VBUS-OFF O VBUS on/off control signal output terminal for the INPUT (for iPhone/iPad/iPod) connector
“L”: VBUS on

PHA-1A/1AEU
19
Pin No. Pin Name I/O Description
1 XSC0 O System clock output terminal (12 MHz)
2 VCCHSRT - Power supply terminal (+3.3V) (analog system)
3 GNDHSRT - Ground terminal (analog system)
4 RREF I External reference resistor connection terminal
5 USBDM I/O Two-way USB data (–) bus with the INPUT (for PC/WALKMAN/Xperia) connector
6 USBDP I/O Two-way USB data (+) bus with the INPUT (for PC/WALKMAN/Xperia) connector
7 VCCA_U20 - Power supply terminal (+3.3V) (analog system)
8 GNDA_U20 - Ground terminal (analog system)
9 VCC3V - Power supply terminal (+3.3V) (digital system)
10 VCC O External filter capacitor connection terminal
11 GND - Ground terminal (digital system)
12 to 17 XGPI_0 to XGPI_5 I/O Not used
18 GND - Ground terminal (digital system)
19 XPWDN O Power down control signal output terminal Not used
20, 21 XD6, XD7 I System clock input terminal Not used
22 XD0 I Serial data input terminal Not used
23 XD1 O Serial data output terminal Not used
24 XHDA_BCLK O Bit clock signal output terminal Not used
25 XHDA_SDI I Serial data input terminal Not used
26 XHDA_SYNC O Frame sync signal output terminal Not used
27 XHDA_RST O Reset signal output terminal Not used
28 XHDA_SDO O Serial data output terminal Not used
29 VCC3V - Power supply terminal (+3.3V) (digital system)
30 XMADC_SDIN0 I I2S serial data input terminal Not used
31 XMADC_SCLK I/O I2S bit clock signal input/output terminal Not used
32 XMADC_MCLK O I2S master clock signal output terminal Not used
33 XMADC_LRCK I/O I2S L/R sampling clock signal input/output terminal Not used
34 X2ADC_SDIN0 I I2S serial data input terminal Not used
35 X2ADC_SCLK I/O I2S bit clock signal input/output terminal Not used
36 X2ADC_LRCK I/O I2S L/R sampling clock signal input/output terminal Not used
37 X2ADC_MCLK O I2S master clock signal output terminal Not used
38 XSPDIFO_0 O S/PDIF signal output terminal Not used
39 GND - Ground terminal (digital system)
40 XSPDIFI_0 I S/PDIF signal input terminal Not used
41 to 48 XPEE_D0 to
XPEE_D7 I/O Two-way serial data bus with the flash memory
49 to 52 XGPIO_8 to
XGPIO_11 I/O Not used
53 VCC3V - Power supply terminal (+3.3V) (digital system)
54 XGPIO_7 O AUX selection signal output terminal
55 XRSTO O Reset signal output terminal Not used
56 XSSDA I/O Two-way slave serial data bus terminal Not used
57 XSSCL I/O Two-way slave serial clock bus terminal Not used
58 to 60 XGPIO_12 to
XGPIO_14 I/O Not used
61 GND - Ground terminal (digital system)
62 XGPIO_15 I/O Not used
63 XMSDA I/O Two-way master serial data bus terminal Not used
64 XMSCL I/O Two-way master serial clock bus terminal Not used
65 to 72 XPEE_A0 to
XPEE_A7 O Address signal output to the flash memory
73 VCC3V - Power supply terminal (+3.3V) (digital system)
74 to 81 XPEE_A8 to
XPEE_A15 O Address signal output to the flash memory
82 XPEE_CEN O Chip enable signal output to the flash memory
83 XPEE_WRN O Write enable signal output to the flash memory
84 XPEE_RDN O Read enable signal output to the flash memory
85 X2DAC_MCLK O I2S master clock signal output terminal Not used
86 X2DAC_LRCK I/O I2S L/R sampling clock signal input/output terminal Not used
MAIN BOARD IC601 CM6631A (USB AUDIO PROCESSOR)

PHA-1A/1AEU
20
Pin No. Pin Name I/O Description
87 X2DAC_SCLK I/O I2S bit clock signal input/output terminal Not used
88 X2DAC_SDOUT O I2S serial data output terminal Not used
89 XMDAC_SDOUT0 O Digital audio data output to the USB controller
90 to 92 NC - Not used
93 XMDAC_SCLK O Digital audio bit clock signal output to the USB controller
94 XMDAC_LRCK O Digital audio L/R sampling clock signal output to the USB controller
95 XMDAC_MCLK O Digital audio master clock signal output to the USB controller
96 XSEL_PWR I Power selection signal input terminal “L”: bus power, “H”: self power Fixed at “H” in this unit
97 VCC3V - Power supply terminal (+3.3V) (digital system)
98 XRST I Reset signal input terminal Not used
99 XTEST I Test mode selection signal input terminal “L”: normal operation, “H”: test mode
Fixed at “L” in this unit
100 XSCI I System clock input terminal (12 MHz)