Sony HCD-GPX555, HCD-GPX888 Schematic

HCD-GPX555/GPX888

SERVICE MANUAL

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

• “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

• 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

• “Made for iPod” and “Made for iPhone” mean that an electronic accessory has been designed to connect specifically

• All other trademarks and registered trademarks are of their respective holders. In this manual, ™ and ® marks are not

®

marks by Sony Corporation is under license. Other trademarks and trade names are those of their respective owners.

mark of Apple Inc.

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.

specified.

word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such

CD Section

US Model

HCD-GPX555

E Model

HCD-GPX555/GPX888

Australian Model

HCD-GPX555

Model Name Using
Similar Mechanism

CD Mechanism Type CDM90-DVBU204//M

Optical Pick-up Name CMS-S76RFS7G

HCD-GPX33

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,

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)

1 kHz)

SPECIFICATIONS

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)

COMPACT DISC RECEIVER

Bluetooth section

Communication system
Bluetooth Standard version 3.1
Output
Bluetooth Standard Power Class 2
Maximum communication range
Line of sight approx. 10 m
Frequency band

2.4 GHz band (2.4000 GHz – 2.4835 GHz)

Modulation method

FHSS (Freq Hopping Spread Spectrum)

Compatible Bluetooth profiles

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.

1)

2)

– Continued on next page –

9-890-651-02

2014J80-1

2014.10

©

Sony Corporation

Published by Sony EMCS (Malaysia) PG Tec

HCD-GPX555/GPX888

5

Ver. 1.1

General

Power requirements
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
Power consumption
MHC-GPX888: 360 W
LBT-GPX555/MHC-GPX555: 280 W
Dimensions (w/h/d) (excl. speakers)
(Approx.)
MHC-GPX888:
294 mm × 361 mm × 331 mm
(11

⁄8 in × 14 1⁄4 in × 13 1⁄8 in)

LBT-GPX555/MHC-GPX555:
294 mm × 361 mm × 325 mm
(11 5⁄8 in × 14 1⁄4 in × 12 7⁄8 in)
Mass (excl. speakers) (Approx.)

5.4 kg (11 lb 15 oz)
Supplied accessories
Remote control (1)
R6 (Size AA) batteries (2)
FM lead/AM loop antenna (1)
Spacer (2) (MHC-GPX888 only)
Speaker pads (16) (MHC-GPX888 only)

Design and specifi cations are subject to change without notice.

NOTES ON CHIP COMPONENT REPLACEMENT

• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be
damaged by heat.

FLEXIBLE CIRCUIT BOARD REPAIRING

• Keep the temperature of soldering iron around 270 °C during
repairing.

• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).

• Be careful not to apply force on the conductor when soldering
or unsoldering.

SAFETY CHECK-OUT

After correcting the original service problem, perform the
following safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs,
screws, and all other exposed metal parts for AC leakage.
Check leakage as described below.

LEAKAGE TEST

The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes.).
Leakage current can be measured by any one of three methods.

1. A commercial leakage tester, such as the Simpson 229 or RCA

WT-540A. Follow the manufacturers’ instructions to use these
instruments.

2. A battery-operated AC milliammeter. The Data Precision 245

digital multimeter is suitable for this job.

3. Measuring the voltage drop across a resistor by means of a

VOM or battery-operated AC voltmeter. The “limit” indication
is 0.75 V, so analog meters must have an accurate low-voltage
scale. The Simpson 250 and Sanwa SH-63Trd are examples
of a passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2 V AC range are suitable. (See
Fig. A)

This appliance is classified as a CLASS 1
LASER product by IEC60825-1:2007. This
marking is located on the rear exterior.

CAUTION

Use of controls or adjustments or performance of procedures
other than those specifi ed herein may result in hazardous
radiation exposure.

SAFETY-RELATED COMPONENT WARNING!

COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE
WITH MARK 0 ON 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.

To Exposed Metal
Parts on Set

AC

1.5 kΩ0.15 μF

voltmeter
(0.75 V)

Earth Ground

Fig. A. Using an AC voltmeter to check AC leakage.

2

TABLE OF CONTENTS

HCD-GPX555/GPX888

1. SERVICING NOTES

................................................ 4

2. DISASSEMBLY

2-1. Disassembly Flow ........................................................... 7

2-2. Side-L Panel, Side-R Panel, Top Panel ........................... 8

2-3. Loading Panel ................................................................. 8

2-4. Front Panel Section ......................................................... 9

2-5. CD Mechanism Section (CDM90-DVBU204//M) ......... 9

2-6. Back Panel Section ......................................................... 10

2-7. MB Board, DAMP Board ............................................... 10

2-8. SWITCHING REGULATOR (3H401W) ....................... 11

2-9. Service Optical Device, Wire (Flat Type) ....................... 12

3. TEST MODE ............................................................. 13

4. ELECTRICAL CHECK .......................................... 16

5. TROUBLESHOOTING ........................................... 17

6. DIAGRAMS

6-1. Block Diagram - RS SERVO, USB Section - ................. 23

6-2. Block Diagram - MAIN Section - ................................... 24

6-3. Block Diagram - AMP Section - ..................................... 25

6-4. Block Diagram

- PANEL/POWER SUPPLY Section - ............................ 26

6-5. Printed Wiring Board

- MB Board (Component side) - ..................................... 28

6-6. Printed Wiring Board

- MB Board (Conductor side) - ....................................... 29

6-7. Schematic Diagram - MB Board (1/9) - ......................... 30

6-8. Schematic Diagram - MB Board (2/9) - ......................... 31

6-9. Schematic Diagram - MB Board (3/9) - ......................... 32

6-10. Schematic Diagram - MB Board (4/9) - ......................... 33

6-11. Schematic Diagram - MB Board (5/9) - ......................... 34

6-12. Schematic Diagram - MB Board (6/9) - ......................... 35

6-13. Schematic Diagram - MB Board (7/9) - ......................... 36

6-14. Schematic Diagram - MB Board (8/9) - ......................... 37

6-15. Schematic Diagram - MB Board (9/9) - ......................... 38

6-16. Printed Wiring Board - DAMP Board - .......................... 39

6-17. Schematic Diagram - DAMP Board (1/2) - .................... 40

6-18. Schematic Diagram - DAMP Board (2/2) - .................... 41

6-19. Printed Wiring Board

- FL Board (Component side) - ....................................... 42

6-20. Printed Wiring Board

- FL Board (Conductor side) -......................................... 43

6-21. Schematic Diagram - FL Board - .................................... 44

6-22. Printed Wiring Board - DJ KEYS Board - ..................... 45

6-23. Schematic Diagram - DJ KEYS Board - ........................ 46

6-24. Printed Wiring Board - USB Board - .............................. 47

6-25. Schematic Diagram - USB Board - ................................. 48

6-26. Printed Wiring Board - TUNER Board - ........................ 49

6-27. Schematic Diagram - TUNER Board - ........................... 50

7. EXPLODED VIEWS

7-1. Side Panel Section .......................................................... 65

7-2. Back Panel Section ......................................................... 66

7-3. Front Panel Section ......................................................... 67

7-4. MB Board Section .......................................................... 68

7-5. Chassis Section ............................................................... 69

7-6. CD Mechanism Section

(CDM90-DVBU204//M) ................................................ 70

8. ELECTRICAL PARTS LIST ............................... 71

3

HCD-GPX555/GPX888

Ver. 1.1

SECTION 1

SERVICING NOTES

NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT

The laser diode in the optical pick-up block may suffer electro­static break-down because of the potential difference generated by
the charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The fl exible board is easily damaged and should be handled with
care.

NOTES ON LASER DIODE EMISSION CHECK

The laser beam on this model is concentrated so as to be focused
on the disc refl ective surface by the objective lens in the optical
pickup block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.

UNLEADED SOLDER

Boards requiring use of unleaded solder are printed with the lead­free 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 fl ow)

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.

MODEL IDENTIFICATION
– Back Panel –

FOR SERVICE

USE

PART No.

Model Part No.

GPX888: E2, E51

GPX555: E2, E51, EA3, AUS, E4

US

Mexican

4-479-110-0[]

4-479-110-1[]

4-479-110-2[]

4-479-110-3[]

NOTE OF REPLACING THE IC001, IC002, IC106 AND
IC302 ON THE MB BOARD

IC001, IC002, IC106 and IC302 on the MB board cannot exchange
with single. When these parts on the MB board are damaged,
exchange the entire mounted board.

RELEASING THE DISC TRAY LOCK

The disc tray lock function for the antitheft of an demonstration
disc in the store is equipped.

Releasing Procedure:

1. Press [

\/1] button to turn the power on.

2. Press the [CD] button to select CD function.

3. While pressing the [x] button, press the [BASS BAZUCA]
button for more 5 seconds).

4. The message “UNLOCKED” is displayed and the disc tray is
unlocked.

Note: When “LOCKED” is displayed, the slot lock is not released by

turning power on/off with the

[\/1] button.

4

HOW TO OPEN THE TRAY WHEN POWER SWITCH TURN OFF

Note 1: After the side panel (L, R) and top panel is removed, this work is done.
Note 2: Please prepare the thin wire (clip etc. processed to the length of 8 cm or more).

1 Remove the panel, side (L, R) and panel, top.
(Illustration of disassembly is omitted.)

– Side view –

hole

Insert the clip etc. processed
to the length of 8 cm or
more in the hole on the
side of the chassis
and push.

CD drive

HCD-GPX555/GPX888

tray

3

8 cm or more

2 Insert the clip etc.

Push after it inserts it in this hole well.

Note:

tray

– Top view –

CAPACITOR DISCHARGE FOR ELECTRIC SHOCK PREVENTION

SMPS 3H401W BOARD (Conductor side view)

In checking the SMPS 3H401W board, make 3 capacitor discharge of C221, C602 and C618 for electrical shock prevention.

800 :/5 W

800 :/5 W

C618

C221

800 :/5 W

C602

5

HCD-GPX555/GPX888

NOTE OF REPLACING MB BOARD OR BLUETOOTH
MODULE OR RC-S801/A (WW) BOARD

When the MB board or BLUETOOTH module or RC-S801/A
(WW) board are replaced, please execute the below service mode.

Pairing this system with a

1. Press the [\/1] button to turn the power on.

2. Place the Bluetooth device within 1 meter (3 feet) from the
system.

3. Press BLUETOOTH on the unit to select Bluetooth function.
“BLUETOOTH” appears in the display panel.

4. Hold down BLUETOOTH on the unit for 2 seconds or more.

“PAIRING” fl ashes in the display panel.

5. Perform the pairing procedure on the Bluetooth device.

6. Select the model number of the unit on the display of the
Bluetooth device.

For example, select “SONY:MHC-GPX888” (or LBT-

GPX555/MHC-GPX555).

If passkey is required on the Bluetooth device, enter “0000”.

7. Perform the Bluetooth connection on the Bluetooth device.

8. When pairing is completed and the Bluetooth connection is
established, Bluetooth device name appears in the display
panel.

Depending on the Bluetooth device, connection may start

automatically after pairing is completed.

You can check the Bluetooth device address by pressing

DISPLAY repeatedly.

9. To cancel pairing operation, hold down BLUETOOTH on the
unit for 2 seconds or more until “BLUETOOTH” appears in
the display panel.

Bluetooth

device

Connecting with a smartphone by one touch (NFC)

Note: The operation in this mode must use a NFC-compatible smartphone

(Smartphones with a built-in NFC function [OS: Android 2.3.3 or
later, excluding Android 3.x])

1. Press the [\/1] button to turn the power on.

2. Download and install the app “NFC Easy Connect”.

Download the free Android app from Google Play by searching

for “NFC Easy Connect”.

3. Start the app “NFC Easy Connect” on the smartphone.

Make sure that the application screen is displayed.

4. Touch the smartphone to the N-Mark on the system until the
smartphone vibrates.

Playing music from a

For a Bluetooth device

1. Press the [

2. Press BLUETOOTH on the unit to select Bluetooth function.
“BLUETOOTH” appears in the display panel.

3. Establish connection with the Bluetooth device.
Press BLUETOOTH on the unit to connect to the last

connected Bluetooth device.

Perform the Bluetooth connection from the Bluetooth device if

the device is not connected.

Once the connection is established, the Bluetooth device name

appears in the display panel.

4. Press N.
Depending on the Bluetooth device,
– you may have to press N twice.
– you may need to start playback of an audio source on the

Bluetooth device.

For an NFC-compatible smartphone

1. Press the [\/1] button to turn the power on.
Touch the smartphone to the N-Mark on the system to establish

the Bluetooth connection.

Start playback of an audio source on the smartphone. For

details on playback, refer to the operating instructions of your
smartphone.

To disconnect the Bluetooth device
For a Bluetooth device

Press BLUETOOTH on the unit.
“BLUETOOTH” appears in the display panel.

For an NFC-compatible smartphone

Touch the smartphone to the N-Mark on the system again.

To erase all the pairing registration information perform
COLD RESET test mode (Refer page 13).

\/1] button to turn the power on.

Bluetooth

device

Complete the connection by following the instructions

displayed on the smartphone.

5. When pairing is completed and the Bluetooth connection is
established, the Bluetooth device name appears in the display
panel.

6

DISASSEMBLY

• This set can be disassembled in the order shown below.

2-1. DISASSEMBLY FLOW

SET

2-2. SIDE-L PANEL, SIDE-R PANEL,
TOP PANEL
(Page 8)

HCD-GPX555/GPX888

SECTION 2

2-3. LOADING PANEL
(Page 8)

2-4. FRONT PANEL SECTION
(Page 9)

2-5. CD MECHANISM SECTION
(CDM90-DVBU204//M)
(Page 9)

2-6. BACK PANEL SECTION
(Page 10)

2-7. MB BOARD, DAMP BOARD
(Page 10)

SWITCHING REGULATOR

2-8.

(3H401W)

(Page 11)

2-9.

SERVICE OPTICAL DEVICE,

WIRE (FLAT TYPE)

(Page 12)

7

HCD-GPX555/GPX888

Note: Follow the disassembly procedure in the numerical order given.

2-2. SIDE-L PANEL, SIDE-R PANEL, TOP PANEL

1 one screw
(+BVTP 3 u 10)

5 panel, side (L)

1 one screw

(+BVTP 3 u 10)

2 one screw
(+BVTP 3 u 10)

4 two claws

A

4 claw

qs four hooks

2 one screw

(+BVTP 3 u 10)

3

A

qa

B

qd panel, top

9 two claws

8

7 one screw

(+BVTP 3 u 10)

B

0 panel, side (R)

6 one screw

(+BVTP 3 u 10)

2-3. LOADING PANEL

– Side view –

Insert the clip etc. processed
to the length of 8 cm or
more in the hole on the
side of the chassis
and push.

8 cm or more

7 one screw
(+BVTP 3 u 10)

9 claw

6 one screw

(+BVTP 3 u 10)

3 three claws

4 panel, loading assy

hole

CD drive

2

1 Insert the clip etc.

Push after it inserts it in this hole well.

Note:

– Top view –

tray

8

2-4. FRONT PANEL SECTION

(GPX888)

7 CN601 (4P)

8 front panel section

HCD-GPX555/GPX888

2 two screws
(+BVTP 3 u 8)

6 CN451 (10P)

5 wire (flat type)

(10 core) (CN102)

(GPX555: US)

3 wire (flat type)
(8 core) (CN105)

1 one screw
(+BVTP 3 u 8)

4 wire (flat type)
(23 core) (CN109)

1 two screws
(+BVTP 3 u 8)

2-5. CD MECHANISM SECTION (CDM90-DVBU204//M)

7 three screws
(+BVTP 3 u 8)

9 CD mechanism section
(CDM90-DVBU204//M)

:LUHVHWWLQJ

Process so that lead wire does not

Note:

contact with fan.

8 holder, CDM

DJ KEYS board

(US, EA, AUS)

3 core, ferrite

2 cushion, saranet

(30 u 50)

5 wire (flat type)
(5 core) (CN303)

4 wire (flat type)
(24 core) (CN302)

1 CN401 (6P)

6 one screw

(+BVTP 3 u 8)

• Abbreviation
AUS : Australian model
EA : Saudi Arabia model

9

HCD-GPX555/GPX888

2-6. BACK PANEL SECTION

7 back panel section

2 four screws

(+BVTP 3 u 8)

3 one screw
(+BVTP 3 u 8)

5 holder, wire

6 sheet, service cover

4 one screw

(+BVTP 3 u 8)

1 wire (flat type)
(9 core) (CN851)

2-7. MB BOARD, DAMP BOARD

0 heat sink (GSX8)

9 sheet, thermal

qa three screws

(+BVTP 3 u 8)

qf DAMP board

3 wire (flat type)

(21 core) (CN111) (GPX888)
wire (flat type)
(19 core) (CN112) (GPX555)

qd bracket, heat sink

7 CN1000 (10P)

8 three screws

(+PTPWH 2.6 u L (DIA8.0))

qa one screw
(+BVTP 3 u 8)

4 one screw
(+BVTP 3 u 8)

4 four screws
(+BVTP 3 u 8)

5 MB board

qs

10

6 CN1001 (2P)

1 Remove the wires

from hooks.

2 CN001 (6P)

2-8. SWITCHING REGULATOR (3H401W)

6 two screws
(+BVTP 3 u 8)

1 two screws
(+BVTP 3 u 8)

4 bracket, fan

HCD-GPX555/GPX888

7 sub, chassis

6 two screws

(+BVTP 3 u 8)

5 DC fan

0 nine screws
(+PWH 3 u 8 (SUMITITE))

qa REGULATOR,

SWITCHING (3H401W)

2 two screws
(+BVTP 3 u 8)

3 two screws
(+BVTP 3 u 8)

8 CN1 (2P)

9

qs chassis assy

11

HCD-GPX555/GPX888

2-9. SERVICE OPTICAL DEVICE, WIRE (FLAT TYPE)

Note 1 : Before disconnecting the wire (fl at type) (24 core) of service optical device, solder the short-land.

8 four insulator screws

qs service,

optical device

3 Insert the thin
wire (clip etc.).

5 tray

1 six claws

qa insulator

6 belt

2 chuck holder assy (T)

qa insulator

qa insulator

0

9

qf wire (flat type)

(5 core)

qh holder, FFC

qj wire (flat type)

(24 core)

qg

7 connector

4

,QVWDOODWLRQRIZLUHIODWW\SHFRUHDQGZLUHIODWW\SHFRUH

This illustration sees the loading assy (T) from bottom side.

Note:

1 wire (flat type) (24 core)

loading assy (T)

terminal face

2 Through the hole

qd base, lo assy

5 two claws

3 Through the hole

Under the guide
(Fold area)

loading assy (T)

– Bottom view –

5 three claws

6 holder, FFC

4

7 wire (flat type)

(24 core)

8 wire (flat type)
(5 core)

12

Under the guide

SECTION 3

TEST MODE

HCD-GPX555/GPX888

[PANEL TEST MODE]

This mode is used to check the fl uorescent indicator tube, LEDs,
keys, [VOLUME / DJ CONTROL] jog, model, destination and
software version.

Procedure:

1. Press [OPTIONS] button and [FOOTBALL] button simultane­ously and hold 3 seconds.

2. All LEDs and segments in fl uorescent indicator tube are light-
ed up. All RGB LEDs are lighted up in white color.

3. When you want to enter to the software version display mode,
press [+ / ] button.

The model information appears on the fl uorescent indicator

tube.

• “GNX5” is shown for XXX-GPX555.

• “GNX8” is shown for XXX-GPX888.

Press [+ / ] button again to view the destination informa-

tion.

4. During the destination information display, press [+ / ] but­ton. Each time [+ / ] button is pressed, the fl uorescent indi-
cator tube shows the version of each category software in the
following sequence: SC, MTK, OPU, UI, PF, SYS, CD, CDMA,
CDMB, ST, TA, TM, and return back to model information dis­play.

5. When [] button is pressed while the version numbers
are being displayed except model and destination, the
date of the software creation appears. When [] button
is pressed again, the display returns to the software ver­sion display.

6. Press [- / ] button, the key check mode is activated.

7. In the key check mode, the fl uorescent indicator tube displays
“K 0 V0”.

• Each time a button is pressed, “K” value increases.

However, once a button has been pressed, it is no
longer taken into account.

• “V” value increases in the manner of 0, 1, 2, 3... if

[VOLUME] knob is turned clockwise, or it decreases
in the manner of 0, 9, 8, 7... if [VOLUME] knob is
turned counterclockwise.

8. When [ENTER] button is pressed after all LEDs and segments
in fl uorescent indicator tube light up, alternate segments in
fl uorescent indicator tube and LEDs would light up, all RGB
LEDs would light up in red color. If you press [ENTER]
button again, another half of alternate segments in fl uorescent
indicator tube and LEDs would light up, all RGB LEDs would
light up in green color. Pressing [ENTER] button again would
cause all segments in fl uorescent indicator tube and LEDs
light up, all RGB LEDs would light up in blue color. Pressing
[ENTER] button again would turn off all segments in fl uores-
cent indicator tube and all LEDs including RGB LEDs.

9. To release from this mode, press the buttons in the same
manner as step 1, or disconnect the power cord.

[COLD RESET]

The cold reset clears all data including preset data stored in the
data fl ash to initial conditions included history mode data. Execute
this mode when returning the set to the customer.

Procedure:

1. Press [\/1] button to turn on the system.

2. Press [] button and [PAN] button simultaneously for 3
seconds.

3. “COLD RESET” appears on the fl uorescent indicator tube.
After that, the fl uorescent indicator tube becomes blank for a
while, and the system is reset.

[CD TRAY LOCK MODE]

This mode let you lock the disc tray. When this mode is activated,
the disc tray will not open when [OPEN/CLOSE] button is pressed.
The message “LOCKED” will be displayed on the fl uorescent
indicator tube. This mode only applied when there is disc(s) on
the tray.

Procedure:

1. Press [\/1] button to turn on the system.

2. Select CD function.

3. Press [] button and [BASS BAZUCA] button simultaneously
and hold down until “LOCKED” or “UNLOCKED” displayed
on the fl uorescent indicator tube (around 5 seconds).

[USER RESET]

The user reset clears all data including preset data stored in the data
fl ash to initial conditions exclude history mode data.

Procedure:

1. Press [

2. Press [] button and [MOVIE/GAME] button simultaneously

3. “RESET” appears on the fl uorescent indicator tube. After that,

\/1] button to turn on the system.

for 3 seconds.

the fl uorescent indicator tube becomes blank for a while, and
the system is reset.

13

HCD-GPX555/GPX888

[HISTORY MODE]

This mode is used to check important data stored in the system
when PROTECTOR happen.

Procedure:

1. During demo mode, press [OPTIONS] button and [FLANGER]
for 5 seconds to mode in to history mode.
Press the [M > / TUNING+] or [ .m / TUNING-]

2.
button to check history data stored.

Display on fl uorescent indicator tube Description

PROCOUNT

PROTYPE

T1

T2

FUNC

VOL

ATT

EQ LOW

EQ MI D

EQ H I GH

SW

SURR

DJ

BAZUCA

※※※※※H※※

※※※※※H※※

※※※※※※※

※※※※※※ ※※

※※

※※※※

※※※

※※※

※※※

※※※

※※※

※※※

※※※

※※※

Protector Count

Protector Type (refer to Protect Type Description)

Single Power On

M

Total Power On

M

Input Function

Volume

Actual Attenuation

Low EQ Level

Mid EQ Level

High EQ Level

Subwoofer Setting

Surround Setting

DJ Effect Setting

Bass Bazuca Setting

To release from this mode, press [\/1] button.

Protect Type Description:

Error Code Description

E01 The over current condition to MOSFET occurs

by defect of MOSFET or defect of PS output
line.

E03 Defect of power supply circuit to AMP.

There is possibility of unusual power supply of
any of the AMP IC or Pre-amplifi er.

E04 DC appears in SP terminal by defect of AMP

IC and MOSFET
or
Defect of DC FAN and DC FAN driver circuit.

E05 Unusual heat up of MOSFET by improper

assembly of heat sink, destruction of MOSFET
etc.

If speaker does not have output even if the set status is not in
PROTECT mode, the following defect might be possible:

Defects Possible cause

RESET defect Reset signal status from micom is not ‘H’.

14

[MODEL & DEST WRITE MODE]

This mode is used to set software model & destination.
This mode only available when no permanent model & destination
is stored.

Procedure:

1. Press [MOVIE/GAME] button & [LED PATTERN] button
simultaneously and hold for 5 seconds.

2. Fluorescent indicator tube display will show “M XXXXX”.

3. Press [/+] / [-/] button to select the model based on the
set’s model.

Product Code F. Tube display

HCD-GPX555 “M GNX5”

HCD-GPX888 “M GNX8”

4. Press [ENTER] button.

5. Fluorescent indicator tube display will show “D XXXXX”.

6. Press [/+] / [-/] button to select the destination based
on the set’s country.

Area Code Country F. Tube display

J1 Japan “D J”

JE1 Tourist “D JE”

U2/CA2 America, Canada “D NA”

CEL/CE1/
CE2

CEK U.K. “D CEK”

RU1/RU3 Russia “D RU”

AU1 Australia “D AU”

CN1 China “D CN”

E12 India, Pakistan, Morocco “D E12”

E3/E15 Middle East, Iran “D E3”

E4/ EA3/
E93/ SA2

HK1/
HK2/PL1/
SP1/SP2/
SP6/TH1

KR2 Korea “D KR”

TW2 Taiwan “D TW”

E2, E32,
E51, AR2

BR1 Brazil “D BR”

MX2,
MX4

Europe(general) “D CE2”

Saudi Arabia, Africa “D EA3”

Hong Kong, Philippines,
Singapore, Malaysia,
Thailand

Latin America(general),
Chile, Peru, Argentina

Mexico “D MX”

“D ASIA”

“D LATIN”

HCD-GPX555/GPX888

7. Press [ENTER] button to confi rm the selection.

8. “RESET” appears on the fl uorescent indicator tube. After that,
the fl uorescent indicator tube becomes blank for a while, and
the system is reset.

9. Mode in [PANEL TEST MODE] again to confi rm on the
model & destination.

15

HCD-GPX555/GPX888

SECTION 4

ELECTRICAL CHECK

CD SECTION

Note:

1. CD Block is basically constructed to operate without adjustment.

2. Use YEDS-18 disc (Part No. 3-702-101-01) unless otherwise indicat­ed.

3. Use an oscilloscope with more than 10 MΩ impedance.

4. Clean the object lens by an applicator with neutral detergent when the

signal level is low than specifi ed value with the following checks.

5. Check the focus bias check when optical pick-up block is replaced.

FOCUS BIAS CHECK

oscilloscope

(DC range)

MB board

JL317 (RF Signal)

JL312 (Vc/Reference)

+
–

Procedure :

1. Connect the oscilloscope to JL317 (RF Signal) and JL312 (Vc/
Reference) on the MB board.

2. Press the [

STANDBY] button to turn the power on, and

?/1

press the [CD] button to select CD function.

3. Set disc (YEDS-18) and press the [u] button to playback.

4. Confi rm that oscilloscope waveform is as shown in the fi gure

below (eye pattern).
A good eye pattern means that the diamond shape () in the

center of the waveform can be clearly distinguished.

VOLT/DIV: 200 mV
TIME/DIV: 500 ns

level:

1.0 ± 0.25 Vp-p (CD)

TUNER SECTION

0 dB = 1 μV

FM AUTO STOP CHECK

signal

generator

set

+

75

–

Procedure:

1. Turn the power on.

2. Input the following signal from Signal Generator to FM an­tenna input directly.

Carrier frequency : A = 87.5 MHz, B = 98 MHz, C = 108 MHz
Deviation : 75 kHz
Modulation : 1 kHz
ANT input : 35 dBu (EMF)

Note: Please use 75 ohm “coaxial cable” to connect SG and the

set. You cannot use video cable for checking.

Please use SG whose output impedance is 75 ohm.

3. Set to FM tuner function and scan the input FM signal with

automatic scanning.

4. Confi rm that input Frequency of A, B and C detected and
automatic scanning stops.

The stop of automatic scanning means “The station signal is
received in good condition”.

Checking Location:

-MB Board (Conductor Side)-

JL317

JL312

16

SECTION 5

TROUBLESHOOTING

Checks whether the state of a Cable and Outlet are normal.

If there are no problems, checks circumference circuit for

Main on/Sub on Output of Main mount side.

Replaces Switching regulator if it is not up to standard.

HCD-GPX555/GPX888

No

Yes

AC IN

The Output from Switching regulator is checked.

Is following power voltage up to standard?

(4)

The Power Control signal to Switching regulator is checked.

Is following power voltage OK?

Main on/Sub on Standby Demo mode Power On

CN 3 : pin6 Low (0V) Low (0V) Hi (3.3V)

(6)

Standby Demo mode Power On

No

0.5V
±

0.5V 13V
±

0.5V 13V
±

CN3 pin1 13V

5%
±

0V 61V

0V

CN2 pin10

2.5V
±

0V 24V

0V

pin7

2.5V
±

0V -24V

0V

pin5

5%
±

0V -61V

0V

pin4

0V 16-23V

Yes

END

0V

pin1

(3)

Switching Regulator Diagnosis Flow

(5)

(2)

(1)

pin1-2: 13V

pin3-4: GND

(1) AC input

(2) Fuse

(3) Sub Power transformer

(4) CN3 Connector

pin5: AC-DET

pin6: MAIN-ON

(5) MAIN Power transformer

(6) CN 2 Connector

pin1 : V3+(DC+16-23V)_(ref-V1)

pin2-4 : V1-(DC-61V)

pin5 : V2-(DC-24V)

pin6 : GND

pin7 : V2+(DC+24V)

pin8-10 : V1+(DC+61V)

17

HCD-GPX555/GPX888

Checks IC303 circumference circuit for +1.2V.

Check IC002 (JL040) circumference circuit for +3.3V.

No

Checks CL335 for +3.3V and +1.2V REG IC303.

Does it output the power voltage of 3.3V and 1.2V?

No

Checks circumference circuit for SL+/SL- of IC401.

Checks circumference circuit of IC301 FMO Signal.

No

Yes

Yes

Does it output the signal?

Checks CN401 SL+/SL- signal.

The Sled motor has a problem.

Replaces BU.

Checks circumference circuit of IC301 DMO Signal.

Checks circumference circuit for SP+/SP of IC401.

No

Does it output the signal?

Checks CN401 SP+/SP- signal.

No

Checks circumference circuit of IC301 FOO Signal.

Checks circumference circuit for FCS+/FCS- of IC401

No

Yes

The Spindle motor has a problem.

Replaces BU.

Yes

Does it output the signal?

Checks CN302 FCS+/FCS- signal.

No

The Optical pickup has a problem.

Replaces BU.

Yes

REMOVE TOP PANEL

TURN ON

TRAY IN

Does Optical pickup move to inner circumference?

Optical Block Diagnosis Flow (1/2)

(Visual check)

18

Yes

Does Spindle motor rotate?

(Visual check)

Yes

Does Optical pickup do focus search?

(Visual check)

A

HCD-GPX555/GPX888

Checks circumference circuit of Q402.

Checks circumference circuit of IC301 LD01.

No

Yes

The Optical pickup has a problems.

Does it output 2V when laser become luminous?

Checks JL306 (LD780) signal.

No

Replaces BU.

If it is not up to standard,

No

Replaces BU if it is not up to standard.

No

Yes

Lens cleaning is performed.

Is output level of RF signal (JL317) up to standard?

Yes

RF Level = 1.05 ±0.45 Vpp

Test CD:YEDS-18

No

The Optical pickup has a problems.

Replaces BU.

A

Optical Block Diagnosis Flow (2/2)

Yes

Does laser diode become luminous ?

(Visual check)

Yes

DISC IN

Yes

Test CD:YEDS-18

Is output level of RF signal (JL317) up to standard?

RF Level = 1.05 ±0.45 Vpp

Yes

Confirms that there is no sound skip.

Is there no problem with Long term Aging Test (60min)?

END

19

HCD-GPX555/GPX888

MB Board

Reinserts the cable or Exchanges.

If there are no problems, checks output of

Switching Regulator Board.

Reinserts the cable or Exchanges.

If there are no problems, checks output of

Main ON of MB Board side.

Reinserts the cable or Exchanges.

If there are no problems, checks output of

Switching Regulator Board.

No

No

No

DAMP Board

Checks circumference circuit of REG IC1002.

If there are no problems, exchanges IC1002.

No

Yes

Checks 13V output of CN001 1pin(Main ON).

Is the power voltage OK?

No

Yes

PLAY MUSIC

DAMP/MB Mount Diagnosis Flow (1/2)

Is there audio output from DAMP Board?

Checks 3V output of CN001 6pin(Main ON).

Yes

Yes

Is the power voltage OK?

Checks 62.5V output of CN1000 10pin (+VH),

-62.5V output of CN1000 2pin (-VH) and -49V

output of CN1000 1pin (-49V).

Is the power voltage OK?

Yes

Checks OUT terminal -50.5V output of REG IC1002

Yes

Or, checks GND and OUT Terminal with Tester.

Is it shorted out?

B

A

20

DAMP Board

HCD-GPX555/GPX888

Checks circumference circuit of REG IC1000.

If there are no problems, exchanges IC1000.

No

B

Checks OUT Terminal 5V output of REG IC1000 or,

checks GND and OUT Terminal with Tester.

Is it shorted out?

Checks circumference circuit of REG IC1001.

If there are no problems, exchanges IC1001.

No

Yes

Checks OUT Terminal -5V output of REG IC1001 or,

Yes

checks GND and OUT Terminal with Tester.

Is it shorted out?

Replaces DAMP Board

No

Leave DAMP to a state of it only and, checks

Power Audio Driver (MOSFET) with Tester.

Replaces DAMP Board

No

Yes

Is it shorted out? (Refer to Page 22.)

Assembles into the unit again then, checks

Yes

whether there is the audio output from

DAMP Board.

A

DAMP/MB Mount Diagnosis Flow (2/2)

END

21

HCD-GPX555/GPX888

Ver. 1.1

CL1064

¾

CL1065

ÚGPX555

¾GPX888

MOSFET Confi rmation for DAMP Mount

C1526

CL1035

CL1034

CL1033

C1125

C1126

CL1029

C1122

C1112

CL1027

CL1028

C1164

C1163

C1160

C1157

CL1026

R1232

R1228

CL1063

R1253

CL1066

R1260

Tes te r Tes te r

CL1032

C1178C1184

R1227

CL1105

CL1106

R1263

CL1103

Tester

C1224C1232

CL1104

Tester

C1169

C1183

R1212
CL1107

CL1045

CL1042

C1182

C1191

C1223

C1237

R1275
CL1046

CL1050

CL1047

C1234

C1240

R1723

Ú

CL1036

C1180

C1190

R1234

C1236

C1239

R1286

R1197

CL1043

C1192

CL1044

R1213

R1223

R1237

CL1080

R1244

CL1048

C1241

R1278

CL1049

R1284

R1289

Tes te r

C1329

C1335

CL1020

C1323

C1325

CL1021

C1374

CL1022

C1369

C1363

C1362

CL1023

CL1069

R1326

¾

R1359

CL1072

Tes te r

C1255

R1330

CL1102

¾

CL1101

C1260

R1363

C1302

CL1099

CL1100

C1310

Tester

C1525

Tes te r

CL1108

CL1110

R1700

CL1071

R1699

C1517

C1247

C1259

CL1055

C1258

¾

C1268

C1303

C1314

CL1060

C1312

C1317

C1257

R1308

CL1053

C1267

CL1051

CL1052

R1333

¾

R1374

C1316

CL1056

CL1058

CL1057

R1385

R1294

C1269

CL1054

R1313

R1336

R1321

CL1090

C1313

R1350

C1318

R1376

CL1059

R1557

R1388

R1382

R1675

R1682

CL1012

R1681

CL1016

CL1013

CL1015

CL1014

CL1062

CL1061

R1316

R1208

CL1075

R1199

C1166

R1646

CL1074

CL1070

C1209

R1591

CL1079

R1250

R1271

R1352

CL1068

R1604

R1305

CL1085

R1296

C1243

R1592

CL1084

CL1083

CL1088

R1594

C1285

R1351

CL1089

R1372

R1609

CL1009

CL1007

CL1040

R1597

CL1041

R1601

CL1039

C1490 C1488

R1602

R1598

CL1038

CL1037

R1636

R1617

C1502

C1504

R1618

R1614

CL1008

CL1001

CL1006

CL1019

CL1067

CL1073

C1026

CL1010

CL1003

CL1002

CL1011

CL1004

CL1109

CL1005

CL1082

<Note>

Please check each channel’s resistance value for the Coil’s terminal and Capacitor’s + and – terminal.

These terminal is equal to resistance value for POWER AUDIO DRIVER terminal.

22

6-1. BLOCK DIAGRAM - RS SERVO, USB Section -

HCD-GPX555/GPX888

SECTION 6

DIAGRAMS

92$$
92%%
92&&
92''

'(9,&(237,&$/

&0665)6*

/2'9'+,&'06:

95

95

5)

9&

3'

$872

32:(5&75/

4

$872

32:(5&75/

4



5),3

5)B&



5)B%



5)B$

5)B'

5)B)92((*

5)B(92))+



9

0',



/'2/'

/'2/'

&'5)$03

)2&8675$&.,1*(5525$03

&'6<67(0352&(6625

',*,7$/6(592352&(6625

,&



06:

&'B95

'9'B95

;7$/2

;7$/,

86%B'0 

86%B'3 

6)B&6

6)B'2

6)B',

6)B&.



;

0+]



'0



'3



((3520

,&

B&6








62



6,



6&.





86%&21752//(5

5(6(7

;

0+]

;

,&



;

&1



'3

'0

'3

'0

'$

'$

9%86

'%

'%

9%86







&1







3/$<

A

9 P$

5(&3/$<

B

9 P$





+8%5(6(7

&211(&772

06%2$5'

)&6
)&6±

75.

75.±

6/ 
6/± 

63 
63± 

&1

/2$'



/2$'



75$<,1



75$<287



&+6<67(0

02725'5,9(5

,&











9275

9275

)2&86

&2,/'5,9(5

)2&86

&2,/'5,9(5

)2&86

&2,/'5,9(5

)2&86

&2,/'5,9(5

%,$6

087(

):'

5(9














)22

'*'4±'4

'02

)02

752

995()



087(





±±



5'±5'

06'5$0

,&

$±$

±

±





5$±5$

6<67(0

&21752//(5

,&



































%$ %$

%$ %$

5&/. &/.

'40 /'40

'40 8'40

5$6 5$6

&$6 &$6

5:( :(

,)6', 
,)6'2 
,)6&. 

3567

,)&6 
,)%6< 

07.6'2



07.6',



07.&/.








07.5(6(7

07.;,)&6

07.%86<

86%2&



&203$5$725



86%

,&





86%$9

86%%9

6LJQDOSDWK



&'02725



&'02725

&'3/$<

  86%

5FKLVRPLWWHGGXHWR

&'0/2$'6:
&'081/2$'6:

VDPHDV/FK

HCD-GPX555/GPX888

2323

HCD-GPX555/GPX888

6-2. BLOCK DIAGRAM - MAIN Section -

ANTENNA

FM/AM

AUDIO

IN 1

J602 (1/2)

CN3000

2

3

GPX888

MIC IN

J2300

PARTY

R

L

AUDIO IN 2

CHAIN IN

R-CH

RL

FM DRIVER

(FM RECEIVER)

IC3000

413

ARF1 L OUT

R OUT

12

ARF2

5

R-CH

SIGNAL SELECTOR

IC605

Y0

1

X3

11

Y3

4

X1

14

X2

15

B
9A10

ANALOG

SELECTOR

Q604

MIC AMP

IC2300

RV2600

MIC LEVEL
MIN MAX

13

X

1375

MIC DETECT

Q2300, Q2301

112

117

ACLK

ALRCK

113

ABCK

106

ADIN

118

ASDATA0

CD RF AMP

FOCUS/TRACKING ERROR AMP

CD SYSTEM PROCESSOR

DIGITAL SERVO PROCESSOR

IC301

(2/2)

X103

12.288MHz

STEREO A/D

CONVERTER

IC609

VINL

13

VINR

14

STEREO A/D
CONVERTER

VINL

13

SCKI

6

LRCK

7

BCK

8

A

1

SIGNAL SELECTOR

IC607

X102

13.333MHz

IC606

9

2
B

DOUT

BCK

DOUT

Y

5

8

9

X101

32.768kHz

STEREO A/D
CONVERTER

IC604

LRCKI

6

BCKI

5

SDIN

4

ASYNCHRONOUS

SAMPLE RATE

CONVERTER

IC610

VOUTL

VOUTR

DATA

BCK

LRCK

BCKO

LRCKO

SDOUT

AUDIO

L

OUT

OP AMP

+

3

+

5

ANALOG

SELECTOR

Q611

IC601

J602 (2/2)

OUT

OUT

1

7

MUTE

PROTECT

Q602

MUTE SW

Q606

SIGNAL

SELECTOR

4

11

1

12

VOUTL

VOUTR

VOUTL

VOUTR

IC602

Y3

Y

3

X3

X

13

Y0

A

10

X0

B

9

7

8

R-CH

7

8

R-CH

ANALOG
SELECTOR
Q605, Q607

OP AMP

IC603

+

OUT

7

8

2
1
3

25

24

23

3

5

1

+

OUT

7

STEREO D/A
CONVERTER

IC611

BCK

1

DATA

2

STEREO D/A
CONVERTER

IC615

BCK

1

DATA

2

R

MUTE SW

Q603

PARTY

CHAIN OUT

FRONT-L

>001B

AMP SECTION

(Page 25)

SW-L

X3000
12MHz

HCD-GPX555/GPX888

BLUETOOTH

16

17

X1

X2

CN102

4

5

9

8

IIC/RDSI

BT-RXD

BT-TXD

BT-RESET

3.3V

41

42

ANALOG-ASEL

ANALOG-BSEL

DA

11

CK

8

6

128

ST-DATA

127

ST-CLK

114

ST-RDS

BUS BUFFER

IC102 (1/2)

BLUETOOTH

POWER CONTROL

Q103, Q104

65

173

BT-RXD(MD-CLK)

65

133

MIC-DETECT

BT-RESET

BT-ON

BT-TXD

5

8

91 92

AUDIO-X1

70 71 68 67

AUDIO-X2

EXTAL

SYSTEM CONTROLLER

XTAL

IC101 (2/4)

RTC-X2

RTC-X1

CP-DATA

126

2

SDA

EPROM

IC105

125

6

CP-CLK

SCL

28

SSI3_DI

26

24

27

SSI3_BCKO

SSI3_LRCKO

32

55

59

SSI1_DI

LINK-DET

SSI3_DOUT3

4)ODVK&6

4)ODVK6,2

169

172

1

2

CS

SO/SIO1

EPROM

29

SSI0_DO

4)ODVK6,2

4)ODVK6,2

166

170

168

3

5

SI/SIO0

W P/SIO2

IC106

33

SSI2_DO

SSI0_BCKO

4)ODVK&/.

4)ODVK6,2

167

6

7

SCLK

HOLD/SIO3

LINK-OUT-B

LINK-OUT-A

/LINE-MUTE-FR

LINK-SET

51

176

96

175

6LJQDOSDWK

: AUDIO

: TUNER (FM/AM)
: CD PLAY

: MIC

5FKLVRPLWWHGGXHWR
VDPHDV/FK

2424

6-3. BLOCK DIAGRAM - AMP Section -

HCD-GPX555/GPX888

>001B

MAIN SECTION

(Page 24)

FRONT-L

SWL-L

R-CH

R-CH

OP AMP

IC1015

OP AMP

IC612

+

3

+

5

OP AMP

+

3

+

5

IC616

OUT

OUT

OUT

OUT

1

7

MUTE

PROTECTION

Q1035

GPX888

MUTE

PROTECTION

Q1042

1

7

+IN_1

3

+IN_2

5

OP AMP

IC1016

+IN_1

3

+IN_2

5

DUAL

OPERATIONAL

AMPLIFIER

IC1003

5

OUT_1

OUT_2

OUT_1

OUT_2

1

RESET

SWITCH

Q1026

7

1

RESET

SWITCH

Q1031

GPX888

7

RESET

SWITCH

Q1036

1

7

RESET

SWITCH

Q1041

POWER AMP

3

IN

CSD

5

POWER AMP

3

IN

CSD

5

POWER AMP

3

IN

CSD

5

POWER AMP

3

IN

CSD

5

IC1009

IC1011

IC1012

IC1014

COM

COM

COM

COM

+63V

14

HO

13

VS

11

LO

10

14

HO

13

VS

11

LO

10

14

HO

13

VS

11

LO

10

14

HO

13

VS

11

LO

10

DIGITAL AUDIO MOSFET

Q1023

DIGITAL AUDIO MOSFET

Q1025

-63V

+63V

DIGITAL AUDIO MOSFET

Q1028

DIGITAL AUDIO MOSFET

Q1030

-63V

+63V

DIGITAL AUDIO MOSFET

Q1032

DIGITAL AUDIO MOSFET

Q1034

-63V

+63V

DIGITAL AUDIO MOSFET

Q1038

DIGITAL AUDIO MOSFET

Q1039

-63V

TH1007 D1024

TH1008 D1024

TH1009 D1034

TH1010 D1034

DC DETECT

SWITCH

Q1027

DC DETECT

SWITCH

Q1037

PGND

FL

FR

PGND

PGND

SWL

SWR

PGND

PGND

SWR

TH-PROTECT

TB1000

TB1001

TB1002

AMP SECTION

FL+

FR+

-

L

+

-

R

+

-

L

+

-

R

+

-

+

,03('$1&(86(

>002B

(Page 26)

FRONT SPEAKERS

,03('$1&(86(

SUBWOOFER

,03('$1&(86(

SUBWOOFER

GPX888

GPX555

HCD-GPX555/GPX888

MUTE

SWITCH

Q109

96

/LINE-MUTE-FR

136

AMP-CLK-FR

AMP RESET

SWITCH

Q1008

120

/AMP-RESET

AMP

SWITCH

Q1058

131

/AMP-SD

SYSTEM CONTROLLER

IC101 (3/4)

THERMISTOR
PROTECTION
Q1067, Q1071

78

THERMISTOR-PROTECT

DC DETECT

SWITCH

Q1060

132

/DC-DET

D1011

FAN RESET

SWITCH

/AMP-RESET

INT- FAN-D ET

Q1073

120

6LJQDOSDWK

13V

: AUDIO

5FKLVRPLWWHGGXHWR
VDPHDV/FK

FAN DRIVER

Q1072

CN1001
DC FAN

FAN PROTECTION

82

(LOCK)

Q1075

2525

HCD-GPX555/GPX888

Ver. 1.1

6-4. BLOCK DIAGRAM - PANEL/POWER SUPPLY Section -

GPX555

LED SPEAKER

FRONT

SPEAKERS

GPX888

LED SPEAKER

FRONT

SPEAKERS

LED

SPEAKER

SUBWOOFERS

VACUUM

FLUORESCENT

DISPLAY

ND2000

D2000, D2002,
D2003, D2005,
D2011, D2200,

D2205

D2006 ~ D2010

CN501

2

L

3
4

CN502

2

R

3
4

CN505

6
7
8

L

2
3
4

CN506

2
3
4

R

6
7
8

CN503

2

L

3
4

CN504

2

R

3
4

VOLUME /

DJ CONTROL

S2200 ~ S2212

S2000 ~ S2009, S2100

S2100

OUT0

5 - 205 - 19

OUT15

OUT0

OUT15

16 - 18

13 - 15

10 - 12

5 - 7

18- 20

15 - 17

12 - 14

35

SI

36

CLK

37

LAT

38

BK

REMOTE CONTROL

LED DRIVE

IC2000

I

TRANS

PWMCLK

SOUT

LED DRIVE

IC2002

I

TRANS

PWMCLK

LED SELECTOR

IC502

PWMCLK

/OUT13

I

/OUT11

/OUT10

I

/OUT8

/OUT7

I

/OUT5

/OUT2

I

/OUT0

LED SELECTOR

IC501

/OUT15

I

/OUT13

PWMCLK

/OUT12

I

/OUT10

/OUT9

I

/OUT7

RECEIVER

SIN

SCK

SIN

SCK

SIN

SCK

TRANS

SOUT

SIN

SCK

TRANS

IC2100

S2101

ROTARY

ENCODER

2
3

4
21
22

2

3

4
21

2

3

21

4

22

2

3

21

4

FL-SOUT

40

FL-CLK

35

FL-LATCH

38

FL-BK

134

135

SIRCS

83

MASTER-VOLUME

AD-KEY1

85

AD-KEY0

84

POWER-KEY

45

SYSTEM CONTROLLER

IC101 (5/5)

RGB-SOUT

48

RGB-SCLK

137

RGB-PWM-CLK

118

RGB-TRANS-LED-SPK/SD_WP_0

112

PCONT-PSAVE-PROTECT

THERMISTOR-PROTECT

SPM-C-MON

PCONT-DAMP

PCONT-BTSTBY

RES

C-CONT

VBUS-OE

AC-CUT(MD-BOOT0)

MTK-POWER-CTRL

SPM-AMBIENT-TEMP

79

117

56

76

165

12

63

164

57

80

78

TD FL
TUBE

+1.2V

TH571

+1.2V REG.

1 8

IC303

LED+5.2V

D2004, D2012,
D2030 ~ D2031

+3.3V

+5V

D+3.3V

5.2V

USB+5V

+5V REG.

5 4

IC3001

POWER CONTROL

PROTECTION

Q006

POWER CONTROL

PROTECTION

Q007

POWER CONTROL

PROTECTION

Q009

POWER CONTROL

PROTECTION

Q008

VOLTAGE

4 2

DETECTOR

IC103

POWER CONTROL

PROTECTION

Q005

POWER CONTROL

PROTECTION

Q001

POWER CONTROL

PROTECTION

Q002

DC-DC CONVERTER

TRANSFORMER

T2000

+5V REG.

IC006

+9V

+3.3V

SWITCHING

TRANSISTOR

Q2000 ~ Q2001

+1.2V SW1

VOLTAGE REGULATOR

IC001

SW2

14

SW1

3

EN2

12

SW1

5

+9V REG.

IC004

VIN1
VIN2

PROTECTION CONTROL

+3.3V REG.

IC002

VIN1

3

SW2

14

1

16

1

VIN2

16

POWER

CONTROL

PROTECTION

Q004

POWER

CONTROL

PROTECTION

Q003

Q576

PROTECTION CONTROL

Q575

PROTECTION CONTROL

Q574

PROTECTION CONTROL

Q572

PROTECTION CONTROL

Q571

+VH

PROTECTION SWITCH

+18V

+5V

PROTECTION SWITCH

-18V

-5V

-VH

POTECTION

SWITCH

Q1003, Q1004, Q1007

XX

AC CUT SWITCH

Q107

Q1000

+18V REG.

Q1006

+5V REG.

IC1000

Q1002

-18V REG.
Q1005

-5V REG.
IC1001

-46V REG.
IC1002

REGULATOR,

SWITCHING

(3H401W)

AC DET

MAIN-ON

+VH

+VL

-VL

-VH

+13.5V

-46V
(AC IN)

>002B

AMP SECTION

(Page 25)

TH-PROTECT

THERMISTOR PROTECTION

Q1067

THERMISTOR PROTECTION

Q1071

-VH

P-CON

HCD-GPX555/GPX888

2626

HCD-GPX555/GPX888

THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)

For Printed Wiring Boards.

Note:

• X : Parts extracted from the component side.

• Y : Parts extracted from the conductor side.

• f : Internal component.

• : Pattern from the side which enables seeing.
(The other layers’ patterns are not indicated.)

Caution:

Pattern face side:
(Conductor Side)
Parts face side:
(Component Side)

• Abbreviation
AUS : Australian model
E2 : 120 V AC area in E model
E4 : African model
E51 : Chilean and Peruvian models
EA : Saudi Arabia model
MX : Mexican model

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.

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 Ω and 1/4 W or less unless otherwise

specifi ed.

• f : Internal component.

• 2 : Nonfl ammable resistor.

• 5 : Fusible resistor.

• C : Panel designation.

Note: The components identifi ed by mark 0 or dotted

line with mark 0 are critical for safety.

Replace only with part number specifi ed.

• A

• B : B– Line.

• Voltages and waveforms are dc with respect to ground

no mark : TUNER (FM)
* : Impossible to measure

• Voltages are taken with VOM (Input impedance 10 M).
Voltage variations may be noted due to normal production

• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production

• Circled numbers refer to waveforms.

• Signal path.
F : AUDIO
f : TUNER (FM/AM)
N : MIC
J : CD PLAY
E : USB

• Abbreviation
AUS : Australian model
E2 : 120 V AC area in E model
E4 : African model
E51 : Chilean and Peruvian models
EA : Saudi Arabia model
MX : Mexican model

: B+ Line.

under no-signal (detuned) conditions.

tolerances.

tolerances.

• Circuit Boards Location

DAMP board

TUNER board

MB board

REGULATOR, SWITCHING
(3H401W)

BLUETOOTH module

RC-S801/A (WW)

FL board

HCD-GPX555/GPX888

DJ KEYS board

USB board

2727