Sony HCD-GPX888 is a powerful audio system that delivers an immersive sound experience for various occasions. With 600W RMS output power, it's ideal for parties, karaoke nights, or simply enjoying your favorite tunes. Stream music effortlessly via Bluetooth or NFC, or connect your devices through USB or audio inputs. The system also features an AM/FM tuner for traditional radio listening. Enjoy dynamic sound with various equalizer presets or customize your settings to suit your preferences.
Sony HCD-GPX888 is a powerful audio system that delivers an immersive sound experience for various occasions. With 600W RMS output power, it's ideal for parties, karaoke nights, or simply enjoying your favorite tunes. Stream music effortlessly via Bluetooth or NFC, or connect your devices through USB or audio inputs. The system also features an AM/FM tuner for traditional radio listening. Enjoy dynamic sound with various equalizer presets or customize your settings to suit your preferences.
SERVICE MANUAL
Sony Corporation
Published by Sony EMCS (Malaysia) PG Tec
SPECIFICATIONS
9-890-651-02
2014J80-1
© 2014.10
Ver. 1.1 2014.10
• HCD-GPX555 is the amplifi er, USB, CD player,
Bluetooth, NFC and tuner section in MHC-GPX555.
• HCD-GPX888 is the amplifi er, USB, CD player,
Bluetooth, NFC and tuner section in MHC-GPX888. Photo: HCD-GPX888
CD Section
Model Name Using
Similar Mechanism HCD-GPX33
CD Mechanism Type CDM90-DVBU204//M
Optical Pick-up Name CMS-S76RFS7G
COMPACT DISC RECEIVER
US Model
HCD-GPX555
E Model
HCD-GPX555/GPX888
Australian Model
HCD-GPX555
HCD-GPX555/GPX888
• “WALKMAN” and “WALKMAN” logo are registered trademarks of Sony Corporation.
• MPEG Layer-3 audio coding technology and patents licensed from Fraunhofer IIS and Thomson.
• Windows Media is either a registered trademark or trademark of Microsoft Corporation in the United States and/or
other countries.
• This product is protected by certain intellectual property rights of Microsoft Corporation. Use or distribution of
such technology outside of this product is prohibited without a license from Microsoft or an authorized Microsoft
subsidiary.
• The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such
marks by Sony Corporation is under license. Other trademarks and trade names are those of their respective owners.
• The N Mark is a trademark or registered trademark of NFC Forum, Inc. in the United States and in other countries.
• Android™ is a trademark of Google Inc.
• Google Play™ is a trademark of Google Inc.
• iPhone and iPod touch are trademarks of Apple Inc., registered in the U.S. and other countries. App Store is a service
mark of Apple Inc.
• “Made for iPod” and “Made for iPhone” mean that an electronic accessory has been designed to connect specifically
to iPod or iPhone, 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 or iPhone may affect wireless performance.
• All other trademarks and registered trademarks are of their respective holders. In this manual, ™ and ® marks are not
specified.
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
(USA model only)
With 4 ohm loads, both channels driven, from
120 – 10,000 Hz; rated 180 watts per channel
minimum RMS power, with no more than
0.7% total harmonic distortion from 250
milliwatts to rated output.
Amplifi er section
The following are measured at
USA model:
AC 120 V, 60 Hz
Mexican model:
AC 120 V – 240 V, 60 Hz
Chilean and Bolivian models:
AC 220 V – 240 V, 50 Hz
Other models:
AC 120 V – 240 V, 50/60 Hz
MHC-GPX888
Front speaker
Power Output (rated):
350 W + 350 W (at 4 ohms, 1 kHz,
1% THD)
RMS output power (reference):
600 W + 600 W (per channel at
4 ohms,
1 kHz)
LBT-GPX555/MHC-GPX555
Front speaker
Power Output (rated):
350 W + 350 W (at 4 ohms, 1 kHz,
1% THD)
RMS output power (reference):
600 W + 600 W (per channel at 4 ohms,
1 kHz)
Subwoofer
RMS output power (reference):
600 W (4 ohms, 100 Hz)
Inputs
AUDIO IN 1/PARTY CHAIN IN L/R
Voltage 2 V, impedance 47 kilohms
AUDIO IN 2 L/R
Voltage 2 V, impedance 47 kilohms
MIC (MHC-GPX888 only)
Sensitivity 1 mV, impedance
10 kilohms
(USB) A, (USB) B, port
Type A
Outputs
AUDIO OUT/PARTY CHAIN OUT L/R
Voltage 2 V, impedance 1 kilohm
USB section
Supported bit rate
WMA:
48 kbps – 192 kbps, VBR, CBR
AAC:
48 kbps – 320 kbps, VBR, CBR
Sampling frequencies
WMA: 44.1 kHz
AAC: 44.1 kHz
Supported USB device
Mass Storage Class
Maximum current
500 mA
Disc/USB section
Supported bit rate
MPEG1 Layer-3:
32 kbps – 320 kbps, VBR
MPEG2 Layer-3:
8 kbps – 160 kbps, VBR
MPEG1 Layer-2:
32 kbps – 384 kbps, VBR
Sampling frequencies
MPEG1 Layer-3:
32 kHz/44.1 kHz/48 kHz
MPEG2 Layer-3:
16 kHz/22.05 kHz/24 kHz
MPEG1 Layer-2:
32 kHz/44.1 kHz/48 kHz
Disc player section
System
Compact disc and digital audio system
Laser Diode Properties
Emission Duration: Continuous
Laser Output*: Less than 44.6 W
* This output is the value measurement
at a distance of 200 mm from the
objective lens surface on the Optical
Pick-up Block with 7 mm aperture.
Frequency response
20 Hz – 20 kHz
Signal-to-noise ratio
More than 90 dB
Dynamic range
More than 88 dB
Tuner section
FM stereo, FM/AM superheterodyne tuner
Antenna:
FM lead antenna
AM loop antenna
FM tuner section
Tuning range
USA model:
87.5 MHz – 108.0 MHz
(100 kHz step)
Other models:
87.5 MHz – 108.0 MHz (50 kHz step)
AM tuner section
Tuning range
Pan American and Australian models:
531 kHz – 1,710 kHz (9 kHz step)
530 kHz – 1,710 kHz (10 kHz step)
Other models:
531 kHz – 1,602 kHz (9 kHz step)
530 kHz – 1,610 kHz (10 kHz step)
Bluetooth section
Communication system
Bluetooth Standard version 3.1
Output
Bluetooth Standard Power Class 2
Maximum communication range
Line of sight approx. 10 m1)
Frequency band
2.4 GHz band (2.4000 GHz – 2.4835 GHz)
Modulation method
FHSS (Freq Hopping Spread Spectrum)
Compatible Bluetooth profiles2)
A2DP (Advanced Audio Distribution
Profile)
AVRCP 1.3 (Audio Video Remote
Control Profile)
SPP (Serial Port Profile)
Supported codecs
SBC (Sub Band Codec)
AAC (Advanced Audio Coding)
1) The actual range will vary depending on
factors such as obstacles between devices,
magnetic fields around a microwave oven,
static electricity, reception sensitivity,
antenna’s performance, operating system,
software application, etc.
2) Bluetooth standard profiles indicate the
purpose of Bluetooth communication
between devices.
– Continued on next page –
HCD-GPX555/GPX888
HCD-GPX555/GPX888
4040
6-17. SCHEMATIC DIAGRAM - DAMP Board (1/2) -
1
A
B
C
D
E
F
G
H
I
J
K
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
DAMP BOARD (1/2)
(CHASSIS)
(CHASSIS)
23
18
18
-63.3
5
-63.3
-23
-18
+18
-23
-7
-23
5 0
0
-5
55
0
0
0
4.3
0
3.3
13
13
1.4
-63.3
-63.3
-62.8
5
23
3.3 5
0
0
-51.3
3.3
5
7
23
0
-49
-5
-23
5
23
0
5
-5
0
0
5
-63.3
5
0
0
13
13
13
0 0.2 0
0.7
3.3
E
EB
BC
C
CE
BB
EC
C
B
E
B
E
C
C
B
E
B
E
C
C
E
BB
E
C
C1517
10u
C1518
0.1u
C1526
0.47u
C1519
0.1u C1466
4.7u
PROTECTION
SWITCH
PROTECTION SWITCH
PROTECTION SWITCH
POTECTION SWITCH
C1515
10u
C1497
47u
25V
C1468
100u
6.3V
C1021
47u
16V
C1011
22u
35V
C1012
22u
35V
C1006 22u 35V
C1020 47u 25V C1019 47u 25V
C1005 22u 35V
C1028
220u
6.3V
C1027
220u
6.3V
C1025
0.1u
C1024
0.1u
C1022
0.47u
C1014
0.47u
C1013
0.47u
C1008 0.47u C1007 0.47u
C1023
0.1u
R1723
820
C1323 0.001u
C1325 0.015u
C1369 0.015u
C1374 0.001u
C1329 0.001u
C1335 0.01u
C1157 0.01u
C1160 0.001u
C1163 0.015u
C1164 0.001u
C1363 0.001u
C1362 0.01u
C1122
0.015u
C1112
0.001u
C1126
0.001u
C1125
0.01u
CL1039
CL1040
CL1038
CL1037
CL1036
CL1022
CL1021
CL1020
CL1071
CL1082
CL1064
D1012
RB520SM-30T2R
D1001
BAV70
D1011
BAV70
D1009
BAV70
D1000
BAW56
D1010
BAW56
D1002
DZ2J068M0L
D1006
D1003, D1006
DZ2J062M0L
D1004, D1005
DZ2J120M0L
D1004
D1007
DZ2J120M0L
D1003
D1008
DZ2J068M0L
D1005
ET1001
C1525
0.47u CL1065 ET1000
DC-DETECT
OCP
CL1023
SWR
SWL
+5V
-5V
PGND
PGND
GVDD
AMP-ON
+18V
-18V
AGND
AGND
AGND
AGND
SW-L
SW-R
FRONT-L
FRONT-R
-VH
PGND
+VH
IC1000
KIA7805AF-RTF/PW
OUT
GND
IN
IC1002
KIA7812AF-RTF/PW
OUT
GND
IN
IC1001
KIA7905F-RTF/PW
OUT
GND
IN
FAN RESET
SWITCH
DC DETECT SWITCH
Q1073
XP4501
Q1060
HN1B01FU
Q1058
AMP SWITCH AMP SWITCH
RN1902
Q1007
RN1902
PROTECTION SWITCH
Q1008
RN4902(T5RSONY,D,F)
Q1000
2SA1576A-T106-QR
Q1005
-18V REG.
DSA700300L
Q1004
Q1004
2SC3722K-E
Q1002
2SC4081-R
Q1006
+18V REG.
2SC5053T100Q
Q1003
LTA014EUBFS8TL
R1699
47k
R1700
150k
R1562
100k
R1701
1.5k
R1684
3.9k
R1683
3.9k
R1567
47k
R1563
22k
R1694
3.3
R1695
3.3
R1693
1
R1696
1
FAN PROTECTION
(LOCK)
Q1075
LSCR523UBFS8TL
TH-PROTECT
LINE-MUTE
Q1071
2SA1576A-T106-QR
THERMISTOR
PROTECTION
THERMISTOR
PROTECTION
Q1067
2SC3722K-E
R1675
22k
R1678
100k
R1679
100k
R1681
10k
R1676
*1
R1682
5.6k
R1677
*2
R1557
10k
R1680
10k
R1510
47k
R1499
100k
CL1003
CL1070
CL1068
CL1067
CL1019
CL1005
CL1006
CL1041
CL1007
CL1008
CL1009
CL1010
CL1011
CL1001
CL1013
CL1014
CL1015
CL1016
CL1002
CL1004
CL1012
CN1006
21P
1
13V
2
GND
3
M+5V
4
/TEMP-PROTECT
5
/DC-DETECT
6
AMP-CLK
7
INT FAN DET
8
/PS-PROTECT
9
/AMP-SD
10
/AMP-RESET
11LINE MUTE
12
13
AGND
14
FR
15
AGND
16
FL
17
AGND
18
SWR
19
AGND
20
SWL
21
AGND
CN1007
19P
1
13V
2
GND
3
M+5V
4
/TEMP-PROTECT
5
/DC-DETECT
6
AMP-CLK
7
INT FAN DET
8
/PS-PROTECT
9
/AMP-SD
10
/AMP-RESET
11
LINE MUTE
12
13
AGND
14
FR
15
AGND
16
FL
17
AGND
18
SWR
19
AGND
10k
R1027
120k
R1004
120k
R1001
10k
R1032
1k
R1029
6.8k
R1042
6.8k
R1041
10k
R1043
10k
R1040
15k
R1568
1k
R1028
270k
R1561
3.9k
R1009
1
R1000
1
R1010
120k
R1038
CL1035
CL1034
CL1033
CL1032
CL1061
CL1062
CN1000
10P
1 -46V
2-VH
3-
VH
4-VH
5-VL
6P-GND
7+VL
8+VH
9+VH
10 +VH
22k
R1007
22k
R1006
180k
R1008
180k
R1005
47k
R1003
47k
R1002
3.9k
R1017
C1016 0.1u
C1003
0.001u
C1010
100p
C1026
0.1u
CLK500KHZ_IN_PHASE
CLK500KHZ_INVERT_PHASE
L1000
220uH
R1044
10k
R1036
10k
470
R1024
1k
R1030
4.7k
R1033
0
R1039
0
R1722
IC1003
NJM8065M
1
1OUT 2
1-IN 3
1+IN 4
V-
2+IN
5
2-IN
6
2OUT
7
V+
8
TB1001
4P
TB1002
2P
-5V REG.
IC1001
-46V REG.
IC1002
+5V REG.
IC1000
DUAL OPERATIONAL
AMPLIFIER
IC1003
10k
R1697
3.3k
R1698
3.3k
R1709
3.3k
R1710
DSA700300L
Q1072
FAN
DRIVER CN1001
2P
FAN-2
FAN+1
>035S
MB BOARD
(7/9)
CN111
(Page 36)
>036S
MB BOARD
(7/9)
CN112
(Page 36)
>042S
DAMP BOARD (2/2)
(Page 41)
CONNECT TO
REGULATOR,
SWITCHING
(3H401W)
BOARD
DC FAN
R
L
FRONT SPEAKERS
,03('$1&(86(
SUBWOOFER
,03('$1&(86(
SUBWOOFER
,03('$1&(86(
R
L
>040S
DAMP
BOARD
(2/2)
(Page 41)
>043S
DAMP BOARD (2/2)
(Page 41)
>041S
DAMP BOARD
(2/2)
(Page 41)
>044S
DAMP BOARD
(2/2)
(Page 41)
C1000
4.7u
C1004
4.7u
C1470
0.1u
CL1109
+
+
-
-
+
-
CL1027
CL1028 CL1029
CL1026
FR
FL
PGND
PGND
TB1000
4P
+
+
-
-
GPX555
GPX888
*1 R1676
2.7k (GPX888)
2.2k (GPX555)
*2 R1677
0 (GPX888)
220 (GPX555)
GPX888
GPX888
GPX555
GPX555
Ver. 1.1
-
1
-
2
Sony HCD-GPX888 is a powerful audio system that delivers an immersive sound experience for various occasions. With 600W RMS output power, it's ideal for parties, karaoke nights, or simply enjoying your favorite tunes. Stream music effortlessly via Bluetooth or NFC, or connect your devices through USB or audio inputs. The system also features an AM/FM tuner for traditional radio listening. Enjoy dynamic sound with various equalizer presets or customize your settings to suit your preferences.
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