Sony HCD-MX500i, HCD-MX550i Service Manual

HCD-MX500i/MX550i

SERVICE MANUAL

Canadian Model

Chinese Model

Ver. 1.0 2010.05

Singapore Model

Photo: HCD-MX550i

• HCD-MX500i is the amplifi er, CD player, tuner, USB (Except Canadian) and iPod/iPhone section in CMT-MX500i.

• HCD-MX550i is the amplifi er, CD player, tuner, USB and iPod/iPhone section in CMT-MX550i.

• iPod is a trademark of Apple Inc.

• iPhone is a trademark of Apple Inc.

• 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.

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

Model Name Using Similar Mechanism NEW

CD Mechanism Type CDM85CD-DVBU102

Optical Pick-up Block Name KHM-313CAA

HCD-MX500i

AEP Model

HCD-MX500i/MX550i

UK Model

HCD-MX550i

Main unit

AUDIO POWER SPECIFICATIONS
With 6 ohm loads, both channels driven, from 120
per channel minimum RMS power, with no more than 10% total harmonic
distortion from 250 milliwatts to rated output.

Amplier section

European model:

DIN power output (rated): 25 watts + 25 watts (6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference): 30 watts + 30 watts (6 ohms at
1 kHz, 10% THD)
Music power output (reference): 30 watts + 30 watts (6 ohms at 1 kHz, 10%
THD)

Other models:

DIN power output (rated): 25 watts + 25 watts (6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference): 30 watts + 30 watts (6 ohms at
1 kHz, 10% THD)

Input

AUDIO IN (stereo mini jack): Sensitivity 700 mV, impedance 47 kilohms

Outputs

SPEAKERS: Accepts impedance of 6 ohms

CD player section

System: Compact disc and digital audio system
Laser Diode Properties

Emission Duration: Continuous
Laser Output*: Less than 44.6μW
* is output is the value measurement at a distance of 200mm from the

objective lens surface on the Optical Pick-up Block with 7mm aperture.

Frequency response: 20 Hz 20 kHz
Signal-to-noise ratio: More than 90 dB
Dynamic range: More than 90 dB

Tuner section

FM tuner section:

FM stereo, FM superheterodyne tuner
Tuning range:

North American model: 87.5 MHz

Other models: 87.5 MHz
Antenna: FM lead antenna
Antenna terminals: 75 ohms unbalanced
Intermediate frequency: 10.7 MHz

DAB/DAB+ tuner section (MX550i only):

FM stereo, DAB/FM superheterodyne tuner
Frequency range*
Band-III: 174.928 (5A) MHz
* For details, see “DAB/DAB+ frequency table” below.
Antenna: DAB/FM lead antenna
Antenna terminal: 75 ohms, F female

108.0 MHz (50 kHz step)

239.200 (13F) MHz

10,000 Hz; rated 30 watts

108.0 MHz (100 kHz step)

SPECIFICATIONS

DAB/DAB+ frequency table (Band-III)

Frequency Label Frequency Label

174.928 MHz 5A 209.936 MHz 10A

176.640 MHz 5B 211.648 MHz 10B

178.352 MHz 5C 213.360 MHz 10C

180.064 MHz 5D 215.072 MHz 10D

181.936 MHz 6A 216.928 MHz 11A

183.648 MHz 6B 218.640 MHz 11B

185.360 MHz 6C 220.352 MHz 11C

187.072 MHz 6D 222.064 MHz 11D

188.928 MHz 7A 223.936 MHz 12A

190.640 MHz 7B 225.648 MHz 12B

192.352 MHz 7C 227.360 MHz 12C

194.064 MHz 7D 229.072 MHz 12D

195.936 MHz 8A 230.784 MHz 13A

197.648 MHz 8B 232.496 MHz 13B

199.360 MHz 8C 234.208 MHz 13C

201.072 MHz 8D 235.776 MHz 13D

202.928 MHz 9A 237.488 MHz 13E

204.640 MHz 9B 239.200 MHz 13F

206.352 MHz 9C

208.064 MHz 9D

* Frequencies are displayed to two decimal places on this system.

iPod/iPhone section

Compatible iPod/iPhone models:

iPod touch 2nd generation
iPod touch 1st generation
iPod classic 120 GB, 160 GB (2009)
iPod classic 160 GB (2007)
iPod classic 80 GB
iPod nano 5th generation (video camera)
iPod nano 4th generation (video)
iPod nano 3rd generation (video)
iPod nano 2nd generation (aluminum)
iPod nano 1st generation
iPod 5th generation (video)
iPod 4th generation (color display)
iPod 4th generation
iPod mini
iPhone
iPhone 3G
iPhone 3GS

USB section (except for North American model)

Supported bit rate:

MP3 (MPEG 1 Audio Layer-3): 32 kbps
WMA: 48 kbps
AAC: 48 kbps

Sampling frequencies:

MP3 (MPEG 1 Audio Layer-3): 32/44.1/48 kHz
WMA: 44.1 kHz
AAC: 44.1 kHz

(USB) port: Type A, maximum current 500 mA

General

Power requirements:

North American model: AC 120 V, 60 Hz

Other models: AC 220 V
Power consumption: 33 watts
Dimensions (W/H/D) (excl. speakers):

Approx. 309 mm × 122 mm × 247 mm
Mass (excl. speakers): Approx. 2.9 kg

Design and specications are subject to change without notice.

Standby power consumption: 0.5 W
Halogenated ame retardants are not used in the certain printed
wiring boards.

192 kbps, VBR

320 kbps

320 kbps, VBR

240 V, 50/60 Hz

9-889-872-01

2010E05-1

2010.05

©

COMPACT DISC RECEIVER

Sony Corporation

Audio&Video Business Group
Published by Sony Techno Create Corporation

HCD-MX500i/MX550i

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.

Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.

This appliance is classifi ed as
a CLASS 1 LASER product.
This marking is located on the
rear or bottom exterior.

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.

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ!

LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0 SUR
LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES
PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONC­TIONNEMENT. NE REMPLACER CES COMPOSANTS QUE
PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DON­NÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS
PUBLIÉS PAR SONY.

TABLE OF CONTENTS

1. SERVICING NOTES ............................................. 3

2. DISASSEMBLY

2-1. Disassembly Flow ........................................................... 8

2-2. Case ................................................................................. 8

2-3. Front Panel Block ........................................................... 9

2-4. Knob (VOL) .................................................................... 10

2-5. MAIN Board ................................................................... 10

2-6. SP Board ......................................................................... 11

2-7. POWER Board ................................................................ 11

2-8. CD Block ........................................................................ 12

2-9. BD96/BD96U Board ....................................................... 13

2-10. Belt .................................................................................. 13

2-11. FFC Holder ..................................................................... 14

2-11. Optical Pick-up Block (KHM-313CAA) ........................ 14

3. TEST MODE ............................................................ 15

4. ELECTRICAL CHECK ......................................... 18

5. DIAGRAMS

5-1. Block Diagram - CD, USB Section - .............................. 19

5-2. Block Diagram

- TUNER, iPod/iPhone, AUDIO IN Section - ................ 20

5-3. Block Diagram - OUTPUT, PANEL Section - ............... 21

5-4. Block Diagram - POWER SUPPLY Section - ................ 22

5-5. Printed Wiring Board

- BD96/BD96U Board (Side A) - ................................... 24

5-6. Printed Wiring Board

- BD96/BD96U Board (Side B) - ................................... 25

5-7. Schematic Diagram - BD96/BD96U Board (1/2) - ........ 26

5-8. Schematic Diagram - BD96/BD96U Board (2/2) - ........ 27

5-9. Printed Wiring Board - DAB Board (MX550i) - ............ 28

5-10. Schematic Diagram - DAB Board (MX550i) - ............... 29

5-11. Printed Wiring Board - MAIN Board (1/2) - .................. 30

5-12. Printed Wiring Boards - MAIN Board (2/2) - ................. 31

5-13. Schematic Diagram - MAIN Section (1/4) - ................... 32

5-14. Schematic Diagram - MAIN Section (2/4) - ................... 33

5-15. Schematic Diagram - MAIN Section (3/4) - ................... 34

5-16. Schematic Diagram - MAIN Section (4/4) - ................... 35

5-17. Printed Wiring Boards - IP/JACK/SP/USB Boards - ..... 36

5-18. Schematic Diagram - IP/JACK/SP/USB Boards - .......... 37

5-19. Printed Wiring Boards - PANEL Section - ..................... 38

5-20. Schematic Diagram - PANEL Section - .......................... 39

5-21. Printed Wiring Board - POWER Board - ........................ 40

5-22. Schematic Diagram - POWER Board - .......................... 41

6. EXPLODED VIEWS

6-1. Case Section .................................................................... 54

6-2. Front Panel Section ......................................................... 55

6-3. iPod Dock Section .......................................................... 56

6-4. MAIN Board Section ...................................................... 57

6-5. Chassis Section ............................................................... 58

6-6. CD Mechanism Deck Section

(CDM85CD-DVBU102) ................................................ 59

7. ELECTRICAL PARTS LIST .............................. 60

2

SECTION 1

SERVICING NOTES

HCD-MX500i/MX550i

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.

NOTE OF REPLACING THE MS-203 BOARD

When the MS-203 board is damaged, exchange the entire
CDM85 (CD) ASSY.

MODEL IDENTIFICATION

– Back Panel –

Model Part No.

HCD-MX500i: AEP model

HCD-MX500i: Canadian model

HCD-MX500i: Singapore model

HCD-MX500i: Chinese model

HCD-MX550i: AEP, UK models

PART No.

4-175-955-0[]

4-175-955-2[]

4-175-955-3[]

4-175-955-4[]

4-175-955-5[]

RELEASING THE ANTITHEFT LOCK

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

Releasing Procedure:

1. Press the [

] button to turn the power on.

?/1

2. While pressing the [x] button, press the [Z] button unit “UN­LOCKED” displayed on the fl uorescent indicator tube (around
5 seconds) .

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

turning power on/off with the [

?/1

] button.

3

HCD-MX500i/MX550i

CAPACITOR ELECTRICAL DISCHARGE PROCESSING

When checking the board, the electrical discharge is necessary for the electric shock prevention.
Connect the resistors referring to the fi gure below.

• POWER board (C11, C12) (Canadian model)

Both ends of respective capacitors.

– POWER Board (Conductor Side) –

C12

C11

• POWER board (C10) (Except Canadian model)

Both ends of respective capacitors.

– POWER Board (Conductor Side) –

800 :/2 W

800 :/2 W

C10

800 :/2 W

4

HOW TO OPEN THE TRAY WHEN POWER SWITCH TURN OFF

HCD-MX500i/MX550i

1 Insert the hard metal fittings of L character type in the
hole of the chassis, and push the lever in the direction
of the arrow.

MAIN, BD96/BD96U AND SP BOARDS SERVICE POSITION

SP board

bottom side

MAIN board

BD96 board (Canadian)
BD96U board (Except Canadian)

5

HCD-MX500i/MX550i

FL, KEY, JACK AND USB BOARDS SERVICE POSITION

MAIN board

JACK board

FL board

KEY board

BD96 board (Canadian)
BD96U board (Except Canadian)

USB board (Except Canadian)

CD MECHANISM DECK, MAIN AND BD96/BD96U BOARDS SERVICE POSITION

MAIN board

BD96 board (Canadian)
BD96U board (Except Canadian)

POWER board

DAB board (MX550i)

6

CD mechanism deck

POWER BOARD SERVICE POSITION

HCD-MX500i/MX550i

POWER board

MAIN board

FL board

7

HCD-MX500i/MX550i

DISASSEMBLY

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

2-1. DISASSEMBLY FLOW

SET

2-2. CASE
(Page 8)

SECTION 2

2-3. FRONT PANEL BLOCK
(Page 9)

2-4. KNOB (VOL)
(Page 10)

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

2-5. MAIN BOARD
(Page10)

2-8. CD BLOCK
(Page 12)

2-9. BD96/BD96U BOARD
(Page 13)

2-11. FFC HOLDER
(Page 14)

2-12. OPTICAL PICK-UP BLOCK
(KHM-313CAA)
(Page 14)

2-2. CASE

2-6. SP BOARD
(Page 11)

2-7. POWER BOARD
(Page 11)

2-10. BELT
(Page 13)

1 two screws
(BV/RING)

– Bottom view –

5 case

3

2 three screws

(BV/RING)

4

3

8

2-3. FRONT PANEL BLOCK

5 Lift up the coating clip.

8 flexible flat cable

qs two screws

(BV3)

qg two claws

(13 core) (CN404)

6 flexible flat cable
(13 core) (CN409)

7 ferrite core

9 connector

(CN402)

qd screw (BV3)

HCD-MX500i/MX550i

lead wire (from HP board)

qf

qh front panel block

3 two claws

4 panel (CD) block

qg two claws

qs three screws

(BV3)

2 Draw out
the tray.

0 connector
(CN402)

qa screw
(BV3)

(EXCEPT Canadian)

bottom side

1 Insert the hard metal fittings of L character type in the
hole of the chassis, and push the lever in the direction
of the arrow.

9

HCD-MX500i/MX550i

2-4. KNOB (VOL)

Note: The illustration sees the front panel block from FL board side.

knob (VOL)

2

2-5. MAIN BOARD

hole

FL board

qg two screws (BV3)

Push the knob (VOL) by flat-head screwdriver.

1

ql heatsink (AMP)

front panel block

qh two coating clips

wa cushion (ferrite)

2 ferrite core

1 flexible flat cable

(13 core) (CN409)

3 connector (CN704)

4 connector (CN412)

5 flexible flat cable

(13 core) (CN404)

6 connector (CN402)

7 connector (CN417)

8 flexible flat cable

(5 core) (CN410)

9 flexible flat cable
(19 core) (CN408)
(Canadian)/
flexible flat cable
(27 core) (CN415)
(Except Canadian)

qj

w; radiation sheet

qg three screws (BV3)

ws MAIN board

qk two screws (BV3)

qs connector (CN401)

qd connector (CN703)

qf connector (CN702)

qg screw (BV3)

(MX550i)

qa flexible flat cable (9 core) (CN407)

0 flexible flat cable (9 core) (CN405)

(CND, CH, SP)/
flexible flat cable (11 core) (CN406)
(AEP, UK)

• Abbreviation
CH : Chinese model
CND : Canadian model
SP : Singapore model

10

2-6. SP BOARD

2 connector (CN703)

1 connector (CN702)

HCD-MX500i/MX550i

5 clamp filter

2-7. POWER BOARD

4

6 SP board

3 screw (BV3)

6 two screws (BV3)

6 two screws (BV3)

2 screw (BV3)

lead wire (from HP board)

3

6 two screws (BV3)

2 two screws (BV3)

7 POWER board

5

1 power cord connector

(CN1)

4 claw

11

HCD-MX500i/MX550i

2-8. CD BLOCK

4 screw (BV3)

2 four screws (BV3)

6 bracket (center)

3

8 screw

(BV3)

Note 1: Do not remove this connector (CN201) at this point.
It is necessary to process electrostatic measures of
optical pick-up.

1 connector (CN301)

7 two claws

7 two claws

bracket (front)

7 two claws

8 screw (BV3)

9 claw

8 screw (BV3)

wire (flat type) (24 core)

filament tape

guard board

9 claw

5 two claws

0 bracket (front)

flexible flat cable (5 core)

– Front side view –

qa filament tape

qs three screws

(BV3)

qf CD block

qd

Note 2: When you install CD block, fix the wire (flat type) (24 core) with
the filament tape firmly as shown in figure.

12

2-9. BD96/BD96U BOARD

Note 1: When disconnection the wire (fl at type) (24 core) of optical pick-up block, solder the short-land.

2 wire (flat type) (24 core)
(CN201)

Note 2: When assembling the optical pick-up block,
remove the solder of short-land after
connecting the wire (flat type) (24 core).

– CD mechanism deck block bottom view –

HCD-MX500i/MX550i

Solder the short-land.

1

• Abbreviation

CH : Chinese model
CND : Canadian model

SP : Singapore model

2-10. BELT

3 BD96 board (MX500i: CND)/
BD96U board (MX500i: AEP, CH, SP/MX550i)

7 chuck cam

8 belt

6 shaft

3 claw

4 tray

5 two hooks

2

3 claw

bottom side

1 Push the lever in the
direction of the arrow.

13

HCD-MX500i/MX550i

2-11. FFC HOLDER

Note 1: The illustration sees the CD mechanism deck block from optical pick-up block side.

3 FFC holder

Note 2: Remove the FFC holder from the

original set and install it again.

1 two claws

2 two claws

CD mechanism deck block

2-12. OPTICAL PICK-UP BLOCK (KHM-313CAA)

+RZWREHQGWKHwire (flat type) (24 core)

two screws

optical pick-up block

6

(KHM-313CAA)

two screws

1

(PTPWH M2.6)

insulator

3

connector

5

insulator

3

1

(PTPWH M2.6)

insulator

3

1 two claws

to BD96/BD96U
board (CN201)

wire (flat type) (24 core)

4

insulator

3

40 mm

The upper side
is contact side.

The lower side
is contact side.

40 mm

to optical pick-up block
(KHM-313CAA)

50 mm

14

– CD mechanism deck block bottom view –

mechanism deck

2

(CDM85 (CD))

SECTION 3

TEST MODE

HCD-MX500i/MX550i

COLD RESET

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

Procedure:

1. In the standby status, press the [?/1] button to turn the power
on.

2. Press two buttons of [ENTER] and [

3. When “RESET” appears, the set enters.

AUTO STANDBY MODE

This mode is used to change the automatic standby function.
With this function, the system enters standby mode automatically
in about 30 minutes when there is no operation or audio signal
output.By default, the automatic standby function is turned on.

Procedure:

1. Press the [

2. Press the [

3. The message “AUTO STBY” → “OFF” is displayed on the
fl uorescent indicator tube and the automatic standby OFF
mode is set.

4. To turn this function on, press the [
onds.

The message “AUTO STBY” → “ON” is displayed on the

fl uorescent indicator tube and the automatic standby ON mode
is set.

COMMON TEST MODE

This mode is used to check operations of amplifi er.

Procedure:

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

2. Press two buttons of [ENTER] and [FUNCTION] simultane­ously.

3. When the COMMON test mode is activated, “AUDIO IN”
is displayed on the fl uorescent indicator tube and “c PLAY
SLEEP” blink on the fl uorescent indicator tube.

4. Each time [EQ] button on the remote commander is pressed,
the display changes starting “TONE MAX”, “TONE MIN”
and “TONE FLAT” this order.

5. Turn the [VOLUME] knob counterclockwise, “VOLUME
MIN” is displayed on the fl uorescent indicator tube. Turn the
[VOLUME] knob clockwise, “VOLUME MAX” is displayed
on the fl uorescent indicator tube.

6. To release this mode, press the [?/1] button.

PANEL TEST MODE

This mode is used to check the fl uorescent indicator tube, LED,
model, destination, software version and key.

Procedure:

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

2. Press three buttons of [ENTER] and [x] simultaneously.

3. All segments on the fl uorescent indicator tube, [STANDBY]
LED light up.

4. Press the [ENTER] button, the model and destination are dis­played on the fl uorescent indicator tube.

5. Press the [ENTER] button again, MC version is displayed on
the fl uorescent indicator tube.

6. Each time [ENTER] button is pressed, the display changes
starting from MC version, GC version, USBL version , USBM
version, IPL version, CD version, CDD version, CDMA ver­sion, CDMB version, BDA version, BDB version, ST version,
TA version and TM version this order, and returns to the MC
version display.

7. When [x] button is pressed while the MC version is displayed,
year, month and day of the software creation is displayed.
When [
MC version display.

] button to turn the power on.

?/1

] button for 2 seconds.

?/1

] button is pressed again, the display returns to the

x

] simultaneously.

?/1

] button again for 2 sec-

?/1

8. Press the [TOOL MENU] button, the key test mode is acti­vated and “K 0 V0” is displayed on the fl uorescent indicator
tube.

9. Each time a button is pressed, “K” value increases. However,
once a button is pressed, it is no longer taken into account.

All keys are pressed, display becomes “K9” .

10. “V” value increases 2, 4, 6 ... if turn the [VOLUME] knob
clockwise, or it decreases 8, 6, 4 ... if turn the knob counter­clockwise.

11. To release this mode, press three buttons in the same manner as
step 2, or disconnect the power cord.

CD SHIP MODE

This mode moves the optical pick-up to the position durable to
vibration. Use this mode when returning the set to the customer
after repair.

Procedure:

1. Press the [

2. Press the [FUNCTION] button to select “CD”.

3. Press two buttons of [TOOL MENU] and [?/1] simultaneous­ly.

4. After blink “STANDBY”, “LOOK” is displayed, disconnect
the AC plug.

CD SHIP MODE & MEMORY CLEAR

This mode is used to perform CD ship mode and cold reset simul­taneously.

Procedure:

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

2. Press three buttons of [x] and [DSGX] simultaneously.

3. After blink “STANDBY”, “LOOK” is displayed disconnect
the AC plug.

ANTITHEFT LOCK MODE

This mode is used to unable to take sample disc out of disc tray in
the shop.

Procedure:

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

2. Press the [Z] button to open the disc tray and set the CD disc.

3. Press the [Z] button to close the disc tray.

4. Press two buttons of [

5. The message “LOCKED” is displayed on the fl uorescent indi-
cator tube and the disc tray is locked. (Even if pressing the [
button, the message “LOCKED” is displayed on the fl uores-
cent indicator tube and the disc tray is locked)

6. To release from this mode, press two buttons of [
for 5 seconds.

7. The message “UNLOCKED” is displayed on the fl uorescent
indicator tube and the disc tray is unlocked.

CD POWER MANAGE

This mode is used to changed over CD power on/off for decreasing
of reception noise in the tuner mode.

Procedure:

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

2. Press the [FUNCTION] button to select “CD”.

3. Press the [?/1] button again to turn the power off.

4. Press two buttons of [ + v] and [?/1] simultaneously.

5. The message “CD POWER ON” or “CD POWER OFF” is dis­played on the fl uorescent indicator tube, and CD power on/off
is changed over in the tuner mode.

] button to turn the power on.

?/1

] and [Z] for 5 seconds.

x

] and [Z]

x

Z

]

15

HCD-MX500i/MX550i

CD SERVICE MODE

This mode can run the CD sled motor freely. Use this mode, for
instance, when cleaning the optical pick-up.

Procedure:

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

2. Press the [FUNCTION] button to select “CD”.

3. Press three buttons of [x] and [ + v] simultaneously, the
message “SERVICE MO” is displayed on the fl uorescent indi-
cator tube.

4. Press the [

l m

up to inside track and the message “SLED IN” is displayed on
the fl uorescent indicator tube, or press the [
+] button to outside track and the message “SLED OUT” is
displayed on the fl uorescent indicator tube.

5. Press the [u] button, “LD ON” or “LD OFF” is displayed
on the fl uorescent indicator tube. Each time [u] button is
pressed, laser diode on/off is changed over.

6. To release this mode, press the [

CD SERVO TEST MODE

This mode can check the servo system operations of the optical
pick-up system (= optical unit + BD96/BD96U board).

Note 1: Do not enter the [CD SERVO TEST MODE] while any other test

mode is in progress.

Note 2: Do not enter any other test mode while the [CD SERVO TEST

MODE] is in progress.

Note 3: In RAM Read, “SBADrough”, “SBBTrough”, “DT-GI roug”,

“SBAD fi ne”, “SBBT fi ne”, “DT-GI fi ne”, “DSPcomcnt”, and
“EDCcomcnt” are displayed but are not used in the service.

How to Enter the CD Servo Test Mode
Procedure:

1. Press the [

?/1

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

3. Press three buttons of [

4. It enters the CD servo test mode and displays “bdt S CURV”.

How to Exit from the CD Servo Test Mode
Procedure:

1. To release this mode, press the [

Key Operation:

+ v], [V –]:

[
Use these keys to move between the seven modes contained in the
CD Servo Test Mode, that are the S-Curve Mode, the RAM Read
Mode, the RAM Write Mode, the Command Out Mode, the Error
Rate Mode the LOG Initialize Mode and the LOG Read Mode as
described below. Also, use these keys to move between the menus
within the respective seven modes. When [ + v] is pressed, the
screen advances to the next menu or to the next mode. When [V

–] is pressed, the screen returns back to the previous menu or
to the previous mode. Use these keys also to increase or decrease
the numeric value when changing the numeric value. Pressing [
+ v] increases the value and pressing [V –] decreases the value.

[ENTER], [

]:

x

Use these keys to move between the different layers of the hier­archy of the CD Servo Test Mode shown below. Press [ENTER]
to move down to the lower layer, and press [x] to move up to the
higher layer.

[

M L

TUNE +], [
Use these keys to move the cursor to the right digit or to the left
digit in the six-digit number, when changing the numeric value.

M L

Press [
press [

l m

TUNE –] button to move the optical pick-

TUNE

?/1

M L

] button.

] button to turn the power on.

], and [

x

l m

TUNE –]:

] simultaneously.

V ‒

] button.

?/1

TUNE +] to move the cursor to the right, and

TUNE –] to return the cursor to the left.

[

]:

u

Use this key to execute Command Out in the Command Out Mode.

CD Servo Test Mode Tree:

S Curve Mode LD ON
(bdt S CURV) (LD ON)

RAM Read Mode
(bdtRAM REA) (DiscType) (AL: 0000, RW: 0001)
Gain Index value indication
(GainIndx) (0001)
RFO GAIN value indication
(RFO_GAIN) (0008)
FEO GAIN value indication
(FEO_GAIN) (0005)
SBAD GAIN value indication
(SBAD_GAIN) (0008)
TEO GAIN value indication
(TEO_GAIN) (0008)
Disc Size value indication
(DiscSize) (0000: Non disc, 0001: 8cm,
0002: 12cm)

(OpAbrkErr) (0000)
SBBT Data value indication
(SBBT Data) (0053)
TE Peak value indication
(TE P-P) (0097)
FEOOCD value indication
(FEOOCD) (00C0)
The following items are not used (Note 3)

RAM Write Mode
(bdtRAM WRI) (00 SPG_M) (Non mask:00, Mask:01)
Fix RF Gain value edit
(00 FixRF) (Non Fix:00, AL Fix:01, RW Fix:02)
TMAX ON value edit
(00 tmaxo)
Driver Mute OFF value edit
(00 d_mut) (Normal:00, Forced OFF:01)

Command Out Mode
(bdt COMOUT) (COMOUT6X) (000000) (OK)
READ2X value edit command out
(READ2X) (60) (50)
REG READ value edit command out
(REG_READ) (00) (0000)
FEBC? command out
(FEBC?) (00)
FGADD? command out
(FGADD?) (FA)
TEBC? command out
(TEBC?) (02)
TGADD? command out
(TGADD?) (0D)
RFGC? command out
(RFGC?) (3F)
FEOF? command out
(FEOF?) (0000)
TEOF? command out
(TEOF?) (FFC0)
TEIOCD1? command out
(TEIOCD1?) (FEC0)
TEIOCD2? command out
(TEIOCD2?) (FEC0)
TEIOCD3? command out
(TEIOCD3?) (0080)
TEOOCD? command out
(TEOOCD?) (FB80)
FEOOCD? command out
(FEOOCD?) (00C0)
MONITOR value edit command out
(MONITOR) (570A00) (OK)
Error Rate Mode Error rate indication
(bdt ERR RA) (0000000000)
LOG Read Mode value indication
(bdtLOG REA) (XX: YYYYYY: ZZZZ)
XX: LOG Number
YYYYYY: Communication LOG
ZZZZ: LOG Number
LOG Initialize Mode Initializetion Initialization execution
(bdtLOG INI) confirmation (INIT done)
indication

Higher layer Lower layer of menu hierarchy

Disc Type value indication

Op ABRAKE Error

SPG Mask value edit

COMOUT6X value edit command out

value indication

16

HCD-MX500i/MX550i

CD ERROR CODE

The past errors of the CD mechanism (CDM) are displayed as the
CDM Errors, and those of the optical pick-up system (= optical
unit + BD96/BD96U board) are displayed as the BD Errors as
shown below.

Procedure:

1. Press the [

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

3. Press three buttons of [TOOL MENU] and [
ously.

4. BD and CDM error counts are displayed on the fl uoresent in-
dicator tube as shown below.

] button to turn the power on.

?/1

] simultane-

u

Em**Ed** X

Mode-in count
BD error count

5. Press the [

6. Then, the CDM error code is displayed as “M0xxxxxxxx” (x
means hexadecimal number) on the fl uorescent indicator tube
as shown below.

7. Every pressing of the [
increments the number after “M” starting from “M0” up to
“M9”, and then returns to “M0”. Every pressing of the [

m

TUNE –] button in this mode decrements the number after
“M”. The smaller the error code number is, the newer the error
content is.

Press the [V –] button to return to the previous display.

8. When the [ + v] button is pressed then, the BD error code
is displayed as “D0xxxxxxxx” (x means hexadecimal number)
on the fl uoresent indicator tube as shown below. In the same
way as the CDM error code, use of the [
and the [
ing of the error history.

Press the [V –] button to return to the previous display.

9. To release from this mode, press the [
power off.

Contents of “CDM Errors”

Error display example

M 0 FF 11 42 00
1 2 3 4 5

1 It indicates the error history number
0 to 9: The error code number 0 indicates the newest error.

2 It indicates whether the CDM error occurs in the normal opera-

tions or during the initialization operation.
FF : The error has occurred in the normal opera-

Other than FF : The error has occurred during the initialization

3 It indicates the processing during which the trouble has oc-

curred.
01: The disc EJECT processing is in progress.
02: The disc INSERTION-WAITING processing is in prog-

03: Processing of the disc INSERTION-REQUEST for the up-

04: Processing of the disc EJECTION-REQUEST for the up-

05: The disc pulling-in operation is in progress.
06: The disc chucking processing is in progress.
07: The disc re-chucking processing is in progress.

l m

ress.

per CD tray is in progress.

per CD tray is in progress.

CDM error count

+ v] button.

M L

TUNE –] buttons in this mode enables trac-

tions.

operation.

TUNE +] button in this mode

M L

] button to turn the

?/1

l

TUNE +]

08: The disc chucking-release completion operation is in prog-

ress.

4 It indicates the operation during which the trouble has oc-

curred.
00 : Waiting for the operation.
10 to 13 : The disc EJECT operation is in progress.
20 : The disc pulling-in operation is in progress.
30 : The disc chucking-release operation is in progress.
40 to 43 : The disc EJECT operation due to error is in prog-

ress.

5 Reserve
00: Fix

Contents of “BD Errors”

Error display example

D

0 02 09

1 2 3 4 5

1 It indicates the error history number
0 to 9: The error code number 0 indicates the newest error.

2 It indicates the error content

01: The focus servo cannot lock-in.
02: GFS is no good (NG).
03: The startup time exceeds the specifi ed period of time (time

over)
04: The focus servo is unlocked continuously.
05: Q code cannot be obtained within the specifi ed period of

time.
06: The tracking servo cannot lock-in.
07: Blank disc

3 It indicates the on-going processing of optical pick-up system

(= optical unit + BD96/BD96U board) when the trouble has
occurred.
01: The CD SHIP mode processing is in progress.
02: The POWER OFF processing is in progress.
03: The INITIALIZE processing is in progress.
04: The optical pick-up system (= optical unit + BD96/
BD96U) is in the stop state.
05: The STOP operation is in progress.
06: The startup processing is in progress.
07: The TOC read-in processing is in progress.
08: The SEARCH operation is in progress.
09: The PLAY operation is in progress.
0A: The PAUSE operation is in progress.
0B: The PLAY – MANUAL SEARCH operation is in prog-

ress.

0C: The PAUSE – MANUAL SEARCH operation is in prog-

ress.

4 It indicates the disc speed when the trouble has occurred.
It indicates the step number of each processing specifi ed by 3.

Because the numbers of steps are different in each processing,
this number is different in each processing.

5 It indicates the disc speed when the trouble has occurred.
01: 1x (normal)

01 01

17

HCD-MX500i/MX550i

SECTION 4

ELECTRICAL CHECK

FM TUNE LEVEL CHECK

signal

generator

Procedure:

1. Turn on the set.

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: Use 75 ohm coaxial cable to connect signal generator and the set.

You cannot use video cable for checking.

Use signal generator whose output impedance is 75 ohm.

3. Set to FM tuner function and tune A, B and C signals.

4. Confi rm “TUNED” is lit on the display for A, B and C signals.

set

When the selected station signal is received in good condition,
“TUNED” is displayed.

18

HCD-MX500i/MX550i

HCD-MX500i/MX550i

1919

SECTION 5

DIAGRAMS

5-1. BLOCK DIAGRAM - CD, USB Section -

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(Page 20)

HCD-MX500i/MX550i

HCD-MX500i/MX550i

2020

R-CH

R-CH

CN01

AUDIO IN

J302

28

SDA27SCL

13

IN-L1

VOL L

1 IN-L2

IN-L3

VOL IIC_SDA/E2P-SDA

47

VOL IIC_CLK/E2P-CLK

48

AUDIO_LEVEL_INPUT

12

SEL L

25OUT L

24SB L

ELECTRICAL VOLUME,

INPUT SELECTOR

IC502

: TUNER

: CD PLAY

: iPod/iPhone

SIGNAL PATH

R-ch is omitted due to same as L-ch.

: AUDIO IN

A

B

CD-L

SP_L

7IN-L5

CN332

(iPod/iPhone Dock)

27
28

LINE AMP

IC503

BUFFER

IC515

R-CH

18
19
13

LINE-OUT-L

LINE-OUT-R

RXD

10

Acc ID

TXD

Acc PWR(3.3V)

30

DGND

iPod_RxD_IN

iPod_TxD_OUT

iPod_WAKE

3

75

iPod_DET

76

78 77

: DAB

DAB1

DAB TUNER

MODULE

S1_DIN

S1_DOUT

35 DAB TxD_OUT

36 DAB RxD_IN

AUDR

AUDL

LINE AMP

IC511

SYSTEM CONTROLLER

IC401 (2/4)

ANTENNA

DAB 75:

FM 75:

COAXIAL
ANTENNA

TU1

TUNER (FM)

L-OUT

DO/STEREO

CE

TUNED

DI

CLK

R-OUT R-CH

ST_CE

52

ST_CLK

54

ST_DI/STEREO

55

ST_DO

53

ST_TUNED

51

RDS DATA

RDS INT

RDS_DATA

56

RDS-INT

18

(MX500i: AEP/MX550i)

(MX550i)

iPod POWER

DETECT

Q505

iPod +5V

20

Acc DET

iPod POWER

DETECT

Q506

iPod WAKE

UP DETECT

Q512

AUDIO INPUT

DETECT

Q504, 517

R-CH

32

IN-L45

66

+

5-2. BLOCK DIAGRAM - TUNER, iPod/iPhone, AUDIO IN Section -

(Page 19)

(Page 21)

HCD-MX500i/MX550i

HCD-MX500i/MX550i

2121

B

SP-L

SYSTEM CONTROLLER

IC401 (3/4)

: TUNER

SIGNAL PATH

R-ch is omitted due to same as L-ch.

C

SD

SPEAKERS

+
–

–

+

R

L

TB322

17

RESET_CD5SD

PWM_C

PWM_D

7

RESET_AB

S-MASTER_RESET

39

39

OUT_A

36

OUT_B

31

OUT_C

28

OUT_D

6 PWM_A

18

16

PWM_B

8

S-MASTER_DCP

OVER LOAD

DETECT

Q702, 703

PROTECT

DETECT

Q701

LED DRIVE

Q623

BYPASS

73

OVER LOAD

DETECT

Q752, 753

DIGITAL POWER AMP

IC707

11

OUTL1

9

OUTL2

6

OUTR1

4

OUTR2

STREAM PROCESSOR

IC705

A/D CONVERTER

IC711

34

TA_LINE_MUTE

MUTING

Q106

MUTING

CONTROL

SWITCH

Q507, 508

82

PROTECT

DETECT

Q516

X703

49.152MHz

S-MASTER_DATA

40

SCDT

21

S-MASTER_SHIFT

42

S-MASTER_LATCH

43

S-MASTER_PG_MUTE

37

S-MASTER_SOFT_MUTE

38

S-MASTER_NSP_MUTE

44

SCSHIFT22SCLATCH23PGMUTE20SOFTMUTE19NSPMUTE

18

S-MASTER_INIT

45

INIT

27

31 DATA2 AINL

1 AINRR-CH

R-CH

SCLK

12

SDTO

9

LRCK

10

MCLK

11

BCK

30

LRCK

29

XFSIIN

36

XFSOIN

48

CLOCK

BUFFER

IC709

CLOCK

SHIFT

IC703

54

CLKB

53

CSB

55

32

DIN

ND621

FLUORESCENT

INDICATOR

TUBE

G2R - G11

SG1 - SG35,

AD1, AD2

33 - 42 61 - 64, 1 - 31, 60, 59

GR1

1

FL/LCD DO2FL/LCD SCL

24

iPod CP IIC SDA22iPod CP IIC SCL26iPod CP RESET

3

FL/LCD CS

52

RSTB

61

FL/LCD RESET

GRID DRIVE

Q622

FLUORESCENT

INDICATOR

TUBE DRIVER

IC621

SIRCS_IN

REMOTE
CONTROL
RECEIVER

IC622

4

I_KEY WAKE UP_POWER & DISPLAY

74

VOLUME_JOG

72

STBY_LED

46

KEY_1, KEY_2

T621

DC/DC CONVERTER

TRANSFORMER

D621, 622

RECT

VEE

OSC

Q621

X402

5MHz

Xout

Xin

13 15

X401

32.768kHz

EEPROM

IC402

Xcout

Xcin

11 10

S621 - 632

(PANEL KEYS)

70, 71

2

37

10

STANDBY

VOLUME

KEY_1

D624

12

I2C_SCL

4

RESET

13

I2C_SDA

ROTARY

ENCODER

RV621

5-3. BLOCK DIAGRAM - OUTPUT, PANEL Section -

(Page 20)

(Page 22)

HCD-MX500i/MX550i

HCD-MX500i/MX550i

2222

20

12

POWER ON 63

D923

POWER CONTROL

IC11

D14

D603

EVER +4V

EVER +3.3V

(AC IN)

F1

LINE FILTER

T1

RECT

D1

TH1

D902

15 VS

18 VD

1 VSENSE

2 F/B

16 VG-H

12 VG-L

8VC1

POWER CONTROL

IC601

5 DRAIN

2FB

4VCC

ISOLATOR

PC11

ISOLATOR

PC602

ISOLATOR

PH601

T031

MAIN POWER

TRANSFORMER

T603

SUB POWER

TRANSFORMER

POWER

ON/OFF
CONTROL
Q901 - 903

SWITCHING

Q012

SWITCHING

Q011

SHUNT

REGULATOR

IC909

RECT

D904

+12V

REGULATOR

IC710

Q601

9OCP

D905

AMP +27V

AMP +12V

RESET

69

AC_DET

D927 D914

83

POWER_PROTECT

+3.3V

REGULATOR

IC405

AMP +3.3V

+3.3V

REGULATOR

IC704

VBUS +5V

+5V

REGULATOR

IC506

iPod +5V

AMP +1.8V

+1.8V

REGULATOR

IC712

CD D +3.3V

CD D +1.5V

+1.5V

REGULATOR

IC102

DAB +3.3V

+3.3V

REGULATOR

IC671

A +9V

M +7V

+9V

REGULATOR

IC905

A +5V

+5V

REGULATOR

IC908

+7V

REGULATOR

IC904

RECT

D903

D911

D922

AC-CUT

49

DAB-POWER_3.3

USB +3.3V

+3.3V

REGULATOR

IC509

85

BOLERO/iPod_ON

86

ZIPANG_ON

DAB +1.2V

+1.2V

REGULATOR

IC672

50

DAB-POWER_1.2

C

SD

PROTECT

DETECT

Q904

OVER CURRENT

PROTECT

Q509

SYSTEM CONTROLLER

IC401 (4/4)

D913

(MX550i)

(Except Canadian)

(Except Canadian)

+3.3V

REGULATOR

IC508

+5V

REGULATOR

IC510

CD A +3.3V

+3.3V

REGULATOR

IC505

CD +5V

+5V

REGULATOR

IC504

A/D +3.3V

+3.3V

REGULATOR

IC702

5-4. BLOCK DIAGRAM - POWER SUPPLY Section -

(Page 21)

HCD-MX500i/MX550i

HCD-MX500i/MX550i

2323

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.

• 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 (detuned) conditions.

– BD96/BD96U Board –

no mark : CD PLAY

– Other Boards –

no mark : TUNER FM

< > : TUNER DAB
* : Impossible to measure

• Voltages are taken with VOM (Input impedance 10 MΩ).

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 : TUNER
J : CD PLAY
d : USB
i : iPod/iPhone
f : AUDIO IN

• Abbreviation

CH : Chinese model
CND : Canadian model
SP : Singapore model

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.)

• Indication of transistor.

Caution:

Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)

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.

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.
Note: Les composants identifi és par une marque

0 sont critiques pour la sécurité.

Ne les remplacer que par une piéce portant

le numéro spécifi é.

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.

• Circuit Boards Location.

• Abbreviation
CH : Chinese model
CND : Canadian model
SP : Singapore model

C

Q

B

E

These are omitted.

FL board

POWER board

IP board

MAIN board

JACK board

KEY board

SP board

USB board
(Except Canadian)

MODULE (DAB TUNER) (MX550i)

DAB board (MX550i)

TUNER (FM)

BD96 board (Canadian)
BD96U board (Except Canadian)

MS-203 board