Sony PHA-1A Service Manual

Sony PHA-1A Service Manual

Portable headphone amplifier
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SERVICE MANUAL

Ver. 1.1 2015.08
Frequency range
10 Hz – 100 kHz
Supported impedance
8
- 600
Maximum output*
1
rechargeable battery)
Approx. 148 mW + 148 mW (8 , 10% distortion)
Approx. 80 mW + 80 mW (32 , 1% distortion)
Approx. 16.4 mW + 16.4 mW (300 , 10% distortion)
1
*
When the GAIN select switch is set to "LOW", the maximum output will be
approx. 150 mV + 150 mV. (PHA-1AEU only)
Output jack
2
Stereo mini jack*
(
(headphones))
*
2
Only 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
DC 5 V: when charging via USB
Rated power consumption
(AEP, Russian, UK, E, Australian and Chinese models)
7 W
Battery life
Approx. 6 hours*
3
3
*
when using the unit at 1 mW + 1 mW output (24 ). Time may vary,
depending on the immediate environment or conditions of use.
CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type.
9-896-144-02
Sony Corporation
2015H33-1
©
2015.08
Published by Sony Techno Create Corporation
PHA-1A/1AEU
Photo: PHA-1A

SPECIFICATIONS

(when using the built-in lithium-ion
Charging time
When connected to a computer: Approx. 3.5 hours*
When connected to an AC outlet using the recommended USB AC adaptor
(sold separately): Approx. 2 hours*
3
*
4
Time required for empty battery to recharge while the unit is off.
Dimensions
Approx. 62 mm × 18.5 mm × 109 mm
(2
1
/
×
3
/
× 4
3
/
in) (w/h/d, projecting parts are not included)
2
4
8
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.
PORTABLE HEADPHONE AMPLIFIER
US Model
Canadian Model
E Model
Australian Model
Chinese Model
Russian Model
PHA-1A
AEP Model
UK Model
PHA-1AEU
4

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Summary of Contents for Sony PHA-1A

  • Page 1: Service Manual

    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. PORTABLE HEADPHONE AMPLIFIER 9-896-144-02 Sony Corporation 2015H33-1 © 2015.08 Published by Sony Techno Create Corporation...
  • Page 2: Table Of Contents

    3-3. Schematic Diagram Depending on the Apple product, there may be significant - MAIN Section (1/4) (PHA-1A) - ......... 12 electric power required when starting the communication 3-4. Schematic Diagram connected with the unit. The battery power of the unit may be - MAIN Section (2/4) (PHA-1A) - .........
  • Page 3: Servicing Notes

    PHA-1A/1AEU Ver. 1.1 SECTION 1 SERVICING NOTES The SERVICING NOTES contains important information for servicing. Be sure to read this section before repairing the unit. UNLEADED SOLDER NOTE FOR PARTS REPAIR OF HP JACK AND VOLUME Boards requiring use of unleaded solder are printed with the lead- BOARDS free mark (LF) indicating the solder contains no lead.
  • Page 4: Disassembly

    PHA-1A/1AEU SECTION 2 DISASSEMBLY • This set can be disassembled in the order shown below. 2-1. DISASSEMBLY FLOW 2-2. BOTTOM PANEL (Page 4) 2-3. CASE BLOCK, MAIN BOARD BLOCK (Page 5) 2-4. BATTERY ASSY (BAT1) (Page 5) 2-5. MAIN BOARD (Page 6) 2-6.
  • Page 5: Case Block, Main Board Block

    PHA-1A/1AEU 2-3. CASE BLOCK, MAIN BOARD BLOCK 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. 1 screw (M1.4 2.5) 4 case block...
  • Page 6: Main Board

    PHA-1A/1AEU 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. 1 frame sheet connector (CN001) woofer sheet...
  • Page 7: Plate Middle Assy

    PHA-1A/1AEU 2-6. PLATE MIDDLE ASSY 2 connector (CN301) 3 light guide 1 screw (M1.7 4.5) 1 screw (M1.7 4.5) 4 plate middle assy frame block 1 screw (M1.7 4.5) – Frame block MAIN board installation side – 2-7. HP JACK BOARD 1 screw (M1.7...
  • Page 8 PHA-1A/1AEU MEMO...
  • Page 9: Diagrams

    PHA-1A/1AEU Ver. 1.1 SECTION 3 DIAGRAMS 3-1. BLOCK DIAGRAM USB AUDIO PROCESSOR USB CONTROLLER D/A CONVERTER DC SERVO IC601 IC401 IC301 IC003 VOLUME BOARD HP JACK BOARD MUTING USBDP XMDAC_SDOUT0 SDAT_IN_AUX SDAT_OUT VOUTLP AUDIO AMP HEADPHONE AMP LOUT SWITCH LEFT...
  • Page 10 PHA-1A/1AEU THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. • Waveforms (In addition to this, the necessary note is printed in each block.) – MAIN Board – For Printed Wiring Boards. For Schematic Diagrams. IC401 7 (CF2)
  • Page 11: Printed Wiring Boards (Pha-1A)

    PHA-1A/1AEU 3-2. PRINTED WIRING BOARDS (PHA-1A) • : Uses unleaded solder. MAIN BOARD MAIN BOARD (COMPONENT SIDE) (CONDUCTOR SIDE) D701 POWER/CHG CL301 FB001 D701 FB002 CL302 R320 R321 Q002 CL303 R117 Q001 R217 HP JACK FB003 BOARD C207 C208 CN002...
  • Page 12: Main Section (1/4) (Pha-1A)

    PHA-1A/1AEU Ver. 1.1 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. MAIN BOARD (1/4) R450 R452...
  • Page 13: Main Section (2/4) (Pha-1A)

    PHA-1A/1AEU Ver. 1.1 3-4. SCHEMATIC DIAGRAM - MAIN Section (2/4) (PHA-1A) - • See page 16 for IC Block Diagrams. MAIN BOARD (2/4) R119 R219 IC201 6.3V GAIN CONTROL C021 IC201 0.01 TS12A12511DCNR >004S PWR_CTRL OPAMP_RIN -4.9 MAIN V– OPAMP_ROUT...
  • Page 14: Main Section (3/4) (Pha-1A)

    PHA-1A/1AEU 3-5. SCHEMATIC DIAGRAM - MAIN Section (3/4) (PHA-1A) - • See page 10 for Waveforms. • See page 16 for IC Block Diagrams. MAIN BOARD (3/4) Q501 RAF040P01TCL JL111 JL122 JL105 JC101 L500 JC113 R505 R513 3.3uH D512 100k...
  • Page 15: Main Section (4/4) (Pha-1A)

    PHA-1A/1AEU 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. MAIN BOARD (4/4) JL012 C722 R791 C719 R788 Q711 Q595 RAF040P01TCL RAF040P01TCL R759...
  • Page 16 PHA-1A/1AEU • IC Block Diagrams IC503 TPS7A3301RGWR IC504 MM3411A50URE IC510, 512 MM3411A33URE – MAIN Board – 19 18 17 IC301 WM8740SEDS/RV PASS DEVICE 15 IN CE 1 BIAS THERMAL CURRENT SHUTDOWN LIMIT ERROR VOLTAGE – 27 26 25 24 23...
  • Page 17 PHA-1A/1AEU IC509 TPS2553DBVR IC511 74LVC1G175GW-125 RREVERSE VOLTAGE – COMPARATOR CURRENT IN 1 6 OUT SENSE 4-ms DEGLITCH CHARGE GND 2 PUMP CURRENT EN 3 DRIVER LIMIT UNDERVOLTAGE 5 ILLM LOCKOUT 4 FAULT 8-ms DEGLITCH THERMAL SENSE IC704 BD6047AGUL-E2 FLGB INITIAL...
  • Page 18 PHA-1A/1AEU • IC Pin Function Description MAIN BOARD IC401 LC87F17C8AUWA-2H (USB CONTROLLER) Pin No. Pin Name Description SERIAL-SW Serial No. write mode switch input terminal “H”: serial No. write mode /RES Reset signal input terminal “L”: reset System clock input terminal...
  • Page 19 PHA-1A/1AEU MAIN BOARD IC601 CM6631A (USB AUDIO PROCESSOR) Pin No. Pin Name Description XSC0 System clock output terminal (12 MHz) VCCHSRT Power supply terminal (+3.3V) (analog system) GNDHSRT Ground terminal (analog system) RREF External reference resistor connection terminal USBDM Two-way USB data (–) bus with the INPUT (for PC/WALKMAN/Xperia) connector...
  • Page 20 PHA-1A/1AEU Pin No. Pin Name Description X2DAC_SCLK I2S bit clock signal input/output terminal Not used X2DAC_SDOUT I2S serial data output terminal Not used XMDAC_SDOUT0 Digital audio data output to the USB controller 90 to 92 Not used XMDAC_SCLK Digital audio bit clock signal output to the USB controller...
  • Page 21 PHA-1A/1AEU MAIN BOARD IC701 BQ24073RGTR (BATTERY CHARGER, POWER CONTROLLER) Pin No. Pin Name Description External NTC thermistor input terminal Not used 2, 3 Battery power input and charge power output terminal Chip enable signal input terminal Not used 5, 6...
  • Page 22 PHA-1A/1AEU MAIN BOARD IC702 PIC16F1455T-I/ML (CHARGE CONTROLLER) Pin No. Pin Name Description C_LED LED drive signal output terminal for the POWER/CHG indicator (red color) “H”: LED on TEMP TH temperature monitoring signal input terminal Not used Power supply state detection signal input from the power controller CHD_PGOOD “L”: power supply is good, “H”: power supply is failure...
  • Page 23: Exploded Views

    Remark 4-420-210-02 SHEET, WOOFER X-2591-594-1 CASE AND PC BOARD ASSY (SV) 3-254-083-11 SCREW (L = 4.5 mm) (Including MAIN board, Sheet, Label) (PHA-1A: CH) 4-563-929-01 FOOT, RUBBER (See Note) 3-234-449-27 SCREW (M1.4) (L = 2.5 mm) X-2591-616-1 CASE AND PC BOARD ASSY (SV)
  • Page 24: Battery Section

    FRAME (MAIN - VOLUME board) 3-254-083-11 SCREW (L = 4.5 mm) 1-848-858-11 CABLE WITH CONNECTOR (3 pin) A-2072-474-A HP JACK BOARD, COMPLETE (PHA-1A) (MAIN - HP JACK board) A-2081-095-A HP JACK BOARD, COMPLETE (PHA-1AEU) BAT1 X-2591-595-1 BATTERY ASSY (SV) (Including Label (Battery recycle)) (See Note)
  • Page 25: Electrical Parts List

    1-116-737-11 CERAMIC CHIP 1uF (PHA-1A: US, CND) (See Note) X-2591-593-1 MAIN BOARD, COMPLETE (SV) C217 1-118-417-11 CERAMIC CHIP 0.1uF (PHA-1A: E, AUS, RU) (See Note) C228 1-116-717-11 CERAMIC CHIP 10uF X-2591-594-1 MAIN BOARD, COMPLETE (SV) (PHA-1A: CH) C300 1-116-717-11 CERAMIC CHIP 10uF...
  • Page 26 PHA-1A/1AEU Ver. 1.1 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C521 1-116-737-11 CERAMIC CHIP 1uF C712 1-116-737-11 CERAMIC CHIP 1uF C522 1-116-713-11 CERAMIC CHIP 22uF C713 1-116-717-11 CERAMIC CHIP 10uF C523 1-116-713-11 CERAMIC CHIP 22uF...
  • Page 27 PHA-1A/1AEU MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark IC506 (Not supplied) IC RP601Z330A-E2-F (See Note) Q720 6-551-346-01 LSK3541FS8T2L IC507 (Not supplied) IC RP402N501E-TR-FE (See Note) Q721 6-551-346-01 LSK3541FS8T2L IC508 6-715-661-01 IC PST8431UL Q722 6-551-346-01...
  • Page 28 PHA-1A/1AEU Ver. 1.1 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R413 1-218-977-11 METAL CHIP 100K 1/16W R614 1-218-957-11 METAL CHIP 2.2K 1/16W R419 1-218-961-11 METAL CHIP 4.7K 1/16W R615 1-218-957-11 METAL CHIP 2.2K 1/16W...
  • Page 29 (PHA-1A: US, CND) (See Note 1) X-2591-593-1 CASE AND PC BOARD ASSY (SV) (Including MAIN board, Sheet, Label) (PHA-1A: E, AUS, RU) (See Note 1) X-2591-594-1 CASE AND PC BOARD ASSY (SV) (Including MAIN board, Sheet, Label) (PHA-1A: CH) (See Note 1)
  • Page 30 RUBBER, BAND (SMALL) (Silicone belt) (1 piece) 4-567-309-01 RUBBER, FLAT (Protection sheet) 0 506 1-492-768-22 AC ADAPTOR (AC-UUD11) (USB AC adaptor) (Exclusive parts of service) (PHA-1A: CH) 0 506 1-492-769-52 AC ADAPTOR (AC-UUD11) (USB AC adaptor) (Exclusive parts of service) (PHA-1A: RU)
  • Page 31 Refer to original service manual for printed wiring board, schematic diagram : AUDIO (ANALOG) one unit. : AUDIO (DIGITAL) and electrical parts list of PHA-1A. : iPhone/iPad/iPod : 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.
  • Page 32 PHA-1A/1AEU 1-1. PRINTED WIRING BOARDS (PHA-1AEU) • : Uses unleaded solder. MAIN BOARD MAIN BOARD (COMPONENT SIDE) (CONDUCTOR SIDE) D701 POWER/CHG CL301 FB001 D701 FB002 CL302 R320 R321 Q002 CL303 R117 Q001 R217 HP JACK FB003 BOARD C207 C208 CN002...
  • Page 33 PHA-1A/1AEU 1-2. SCHEMATIC DIAGRAM - MAIN Section (1/4) (PHA-1AEU) - MAIN BOARD (1/4) (Page 6) R450 R452 R451 R428 R432 100k 470p C407 C228 >001S BATT_STATUS BATT_STATUS JL602 BATT_CHECK JL601 MAIN BATT_CHECK BOARD JL603 (4/4) R422 HP_XMUTE1 HP_XMUTE1 HP_XMUTE2 >002S...
  • Page 34 PHA-1A/1AEU 1-3. SCHEMATIC DIAGRAM - MAIN Section (2/4) (PHA-1AEU) - MAIN BOARD (2/4) R119 R219 IC201 6.3V GAIN CONTROL C021 IC201 (Page 3) 0.01 TS12A12511DCNR >004S PWR_CTRL OPAMP_RIN -4.9 MAIN V– OPAMP_ROUT BOARD GAIN_SW S001 (1/4) PWR_CTRL GAIN NC_5 IC003...
  • Page 35 PHA-1A/1AEU 1-4. SCHEMATIC DIAGRAM - MAIN Section (3/4) (PHA-1AEU) - MAIN BOARD (3/4) Q501 RAF040P01TCL JL111 JL122 JL105 JC101 L500 JC113 R505 R513 3.3uH D512 100k RSX101M-30FJTR R569 IC511 IN_15 OUT_1 IC502 R521 JC103 NC_2 JL121 POWER CONTROL +5V REGULATOR...
  • Page 36 PHA-1A/1AEU 1-5. SCHEMATIC DIAGRAM - MAIN Section (4/4) (PHA-1AEU) - MAIN BOARD (4/4) JL012 C722 R791 C719 R788 Q711 Q595 RAF040P01TCL RAF040P01TCL R759 FB021 R764 100k IC705 Q723 Q711 - 713 RAF040P01TCL B+ SWITCH VOLTAGE LEVEL DETECT IC705 PST8431UL IC704...
  • Page 37 (HP JACK board, MAIN board, Ne les remplacer que par une pièce por- • RESISTORS VOLUME board) of PHA-1A. tant le numéro spécifi é. All resistors are in ohms. METAL: Metal-fi lm resistor.
  • Page 38 PHA-1A/1AEU MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C523 1-116-713-11 CERAMIC CHIP 22uF C716 1-116-724-11 CERAMIC CHIP 4.7uF 6.3V C524 1-116-713-11 CERAMIC CHIP 22uF C719 1-118-041-11 CERAMIC CHIP 4.7uF C525 1-116-717-11 CERAMIC CHIP 10uF...
  • Page 39 PHA-1A/1AEU MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark IC510 6-719-198-01 IC MM3411A33URE Q720 6-551-346-01 LSK3541FS8T2L IC511 6-710-375-01 IC 74LVC1G175GW-125 Q721 6-551-346-01 LSK3541FS8T2L IC512 6-719-198-01 IC MM3411A33URE Q722 6-551-346-01 LSK3541FS8T2L IC601 (Not supplied) IC CM6631A (See Note)
  • Page 40 PHA-1A/1AEU MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R331 1-216-825-11 METAL CHIP 2.2K 1/10W R578 1-218-989-11 METAL CHIP 1/16W R332 1-218-977-11 METAL CHIP 100K 1/16W R579 1-218-965-11 METAL CHIP 1/16W R334 1-216-296-11 SHORT CHIP...
  • Page 41 PHA-1A/1AEU MAIN VOLUME Ref. No. Part No. Description Remark R792 1-208-695-11 METAL CHIP 3.3K 0.5% 1/16W R793 1-218-985-11 METAL CHIP 470K 1/16W < SWITCH > S001 1-786-792-11 SWITCH, SLIDE (GAIN) * S591 1-798-076-21 PUSHBUTTON SWITCH (WALKMAN/Xperia DETECT) S592 1-786-914-31 SWITCH, TACTILE (SERIAL No. WRITE) <...
  • Page 42: Revision History

    2015.02 2015.08 Addition of PHA-1AEU Change of Part for Ref. No. FB003 and R422 on the MAIN board (PHA-1A) Change of Part for FRAME (Ref. No. 54) Change of Part No. for REFERENCE GUIDE (E, Australian, Russian and Chinese models) Change of Part for USB CABLE (Ref.

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