Sony HCD-HX50BTR User manual

SERVICE MANUAL
Sony Corporation
Audio Business Group
Published by Sony Techno Create Corporation
HCD-HX50BTR/HX70BTR/
HX80R/HX90BTR
SPECIFICATIONS
COMPACT DISC RECEIVER
9-889-091-02
2008F05-1
© 2008.06
Canadian Model
E Model
HCD-HX50BTR
AEP Model
HCD-HX50BTR/HX70BTR
UK Model
HCD-HX80R/HX90BTR
Ver. 1.1 2008.06
Model Name Using Similar Mechanism NEW
CD Mechanism Deck BU-K6BD91UR2-WOD
Optical Pick-up Block Name KSM-213DCP
• HCD-HX50BTR is the amplifier, bluetooth,
USB, CD player and tuner section in CMT-
HX50BTR.
• HCD-HX70BTR is the amplifier, bluetooth,
USB, CD player and tuner section in CMT-
HX70BTR.
• HCD-HX80R is the amplifier, USB, CD play-
er and tuner section in CMT-HX80R.
• HCD-HX90BTR is the amplifier, bluetooth,
USB, CD player and tuner section in CMT-
HX90BTR. Photo: HCD-HX50BTR
– Continued on next page –
• The Bluetooth word mark and logos are owned by the Bluetooth SIG, Inc. and any use of such
marks by Sony Corporation is under license. Other trademarks and trade names are those of their
respective owners.
• “WALKMAN” and “WALKMAN” logo are registered trademarks of Sony Corporation.
• MPEG Layer-3 audio coding technology and patents licensed from Fraunhofer IIS and Thom-
son.
• Windows Media is a registered trademark of Microsoft Corporation in the United States and/or
other countries.
Amplifier section
HCD-HX80R/HX90BTR
DIN power output (rated):
40 + 40 watts (6 ohms at 1 kHz, DIN)
Continuous RMS power output
(reference): 50 + 50 watts (6 ohms at
1 kHz, 10% THD)
Music power output (reference):
50 + 50 watts (6 ohms at 1 kHz, 10%
THD)
HCD-HX70BTR
DIN power output (rated):
60 + 60 watts (4 ohms at 1 kHz, DIN)
Continuous RMS power output
(reference): 75 + 75 watts (4 ohms at
1 kHz, 10% THD)
Music power output (reference):
75 + 75 watts (4 ohms at 1 kHz, 10%
THD)
HCD-HX50BTR
European and Russian models:
DIN power output (rated):
40 + 40 watts (6 ohms at 1 kHz, DIN)
Continuous RMS power output
(reference): 50 + 50 watts (6 ohms at
1 kHz, 10% THD)
Music power output (reference):
50 + 50 watts (6 ohms at 1 kHz, 10%
THD)
Other models:
DIN power output (rated):
40 + 40 watts (6 ohms at 1 kHz, DIN)
Continuous RMS power output
(reference): 50 + 50 watts (6 ohms at
1 kHz, 10% THD)
Inputs:
AUDIO IN (stereo mini jack):
voltage 250 mV, impedance
22 kilohms
(USB) port: Type A, maximum
current 500 mA
Outputs:
PHONES (stereo mini jack): accepts
headphones of 8 ohms or more
SPEAKER: accepts impedance of
4 ohms (CMT-HX70BTR) or 6 ohms
(CMT-HX50BTR)
Bluetooth section
(HCD-HX50BTR/HX70BTR/HX90BTR)
Communication system:
Bluetooth Standard version 2.0
Output:
Bluetooth Standard Power Class 2
Maximum communication range:
Line of sight approx. 10 m1)
Frequency band:
2.4 GHz band (2.4000 GHz
– 2.4835 GHz)
Modulation method:
FHSS
Compatible Bluetooth proles2):
A2DP (Advanced Audio Distribution
Prole)
AVRCP (Audio Video Remote
Control Prole)
Supported codecs:
Receive: SBC (Sub Band Codec), MP3
Transmit: SBC (Sub Band Codec)
Tuner section
DAB tuner section
(HCD-HX80R/HX90BTR) :
Frequency range*
Band-III: 174.928 (5A) – 239.200
(13F) MHz
* For details, see “DAB frequency table”.
Antenna: FM/DAB lead antenna
Antenna terminal: 75 ohms, F female
FM stereo, FM/AM superheterodyne tuner
FM tuner section:
Tuning range
Canadian and Brazilian models:
87.5 – 108.0 MHz (100 kHz step)
Other models: 87.5 – 108.0 MHz
(50 kHz step)
Antenna: FM lead antenna
Antenna terminals: 75 ohms unbalanced
Intermediate frequency: 10.7 MHz
AM tuner section:
Tuning range
European and Russian models:
531 – 1,602 kHz (with 9 kHz tuning
interval)
Canadian and Latin American
models:
530 – 1,710 kHz (with 10 kHz tuning
interval)
531 – 1,710 kHz (with 9 kHz tuning
interval)
Other models:
531 – 1,602 kHz (with 9 kHz tuning
interval)
530 – 1,610 kHz (with 10 kHz tuning
interval)
Antenna: AM loop antenna, external
antenna terminal
Intermediate frequency: 450 kHz
1) e actual range will vary depending on
factors such as obstacles between devices,
magnetic elds around a microwave oven,
static electricity, reception sensitivity,
antenna’s performance, operating system,
soware application, etc.
2) Bluetooth standard proles indicate the
purpose of Bluetooth communication
between devices.
USB section
Supported bit rate
MP3 (MPEG 1 Audio Layer-3):
32 – 320 kbps, VBR
WMA: 32 – 192 kbps, VBR
AAC: 48 – 320 kbps
Sampling frequencies
MP3 (MPEG 1 Audio Layer-3):
32/44.1/48 kHz
WMA: 44.1 kHz
AAC: 44.1 kHz
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
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
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HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
2
SAFETY-RELATED COMPONET WARNING!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED LINE
WITH MARK 0ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS
WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0SUR
LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES
PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONC-
TIONNEMENT. NE REMPLACER CES COM- POSANTS QUE
PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DON-
NÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS
PUBLIÉS PAR SONY.
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
General
Power requirements
European and Russian models:
220 – 240 V AC, 50/60 Hz
Canadian model: 120 V AC, 60 Hz
Mexican model: 127 V AC, 60 Hz
Argentina model: 220 – 240 V AC,
50/60 Hz
Korean model: 220 – 240 V AC,
50/60 Hz
Latin American models (except for
Mexican and Argentina models):
120 – 127, 220 – 240 V AC, 50/60 Hz,
adjustable with voltage selector
Other models:
220 – 240 V AC, 50/60 Hz
Power consumption
HCD-HX90BRT: 40 watts
HCD-HX80R: 40 watts
HCD-HX70BTR: 50 watts
HCD-HX50BTR: 40 watts
Dimensions (w/h/d) (excl. speakers):
Approx. 305 × 116 × 226 mm
(HCD-HX80R/HX90BTR)
Approx. 305 × 116 × 225 mm
(HCD-HX50BTR/HC70BTR)
Design and speci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 dam-
aged 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.
CAUTION
Use of controls or adjustments or performance of procedures other than
those specified herein may result in hazardous radiation exposure.
is appliance is classied as aCLASS 1
LASER product. is marking is located
on the rear exterior.
Ver. 1.1
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
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HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
3
1. SERVICING NOTES ............................................. 4
2. GENERAL .................................................................. 6
3. DISASSEMBLY
3-1. Disassembly Flow........................................................... 8
3-2. Panel (Top) Block........................................................... 9
3-3. Panel (Front) Block......................................................... 9
3-4. Knob Assy....................................................................... 10
3-5. MAIN Board................................................................... 10
3-6. Loading Mechanism Block............................................. 11
3-7. Base Unit (BU-K6BD91UR2-WOD)............................. 11
3-8. Belt.................................................................................. 12
3-9. Optical Pick-up Block (KSM-213D).............................. 12
4. TEST MODE ............................................................ 13
5. ELECTRICAL CHECKS ...................................... 15
6. DIAGRAMS
6-1. Block Diagram - CD SERVO Section -.......................... 16
6-2. Block Diagram
- TUNER/USB/BLUETOOTH Section -........................ 17
6-3. Block Diagram - MAIN Section -................................... 18
6-4. Block Diagram - AMP Section -..................................... 19
6-5. Block Diagram - PANEL/POWER SUPPLY -............... 20
6-6. Printed Wiring Boards - CD Section -............................ 22
6-7. Schematic Diagram - CD Board -................................... 23
6-8. Printed Wiring Board - USB Board -.............................. 24
6-9. Schematic Diagram - USB Board -................................. 25
6-10. Printed Wiring Boards - BLUETOOTH Section
(HX50BTR/HX70BTR/HX90BTR) -............................. 26
6-11. Schematic Diagram - BLUETOOTH Section
(HX50BTR/HX70BTR/HX90BTR) -............................. 27
6-12. Printed Wiring Board
- DAB Board (HX80R/HX90BTR) -.............................. 28
6-13. Schematic Diagram
- DAB Board (HX80R/HX90BTR) -.............................. 29
6-14. Printed Wiring Board - MAIN Section -......................... 30
6-15. Schematic Diagram - MAIN Section (1/3) -................... 31
6-16. Schematic Diagram - MAIN Section (2/3) -................... 32
6-17. Schematic Diagram - MAIN Section (3/3) -................... 33
6-18. Printed Wiring Board
- AMP Board (HX50BTR/HX80R/HX90BTR) -........... 34
6-19. Schematic Diagram
- AMP Board (HX50BTR/HX80R/HX90BTR) -........... 35
6-20. Printed Wiring Board - AMP Board (HX70BTR) -........ 36
6-21. Schematic Diagram - AMP Board (HX70BTR) -........... 37
6-22. Printed Wiring Boards - INPUT/OUTPUT Section -..... 38
6-23. Schematic Diagram - INPUT/OUTPUT Section -.......... 39
6-24. Printed Wiring Boards - PANEL Section - ..................... 40
6-25. Schematic Diagram - PANEL Section -.......................... 41
6-26. Printed Wiring Board - SW POWER Board -................. 42
6-27. Schematic Diagram - SW POWER Board - ................... 43
7. EXPLODED VIEWS
7-1. Panel (Top) Section......................................................... 57
7-2. Chassis (Top) Section ..................................................... 58
7-3. Panel (Front) Section...................................................... 59
7-4. Main Section................................................................... 60
7-5. Chassis Section............................................................... 61
7-6. Loading Mechanism Section .......................................... 62
7-7. Base Unit Section (BU-K6BD91UR2-WOD)................ 63
TABLE OF CONTENTS
8. ELECTRICAL PARTS LIST .............................. 64
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
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HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
4
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 electrostat-
ic 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 flexible 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 reflective 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 lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40 °C higher
than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if the
heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscous (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
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 [?/1] button to turn the power on.
2. While pressing the [x/CANCEL] button, press the [Z] but-
ton unit “UNLOCKED” displayed on the fluorescent indicator
tube (around 5 seconds) .
Note: When “LOCKED” is displayed, the tray lock is not released by
turning power on/off with the [?/1] button.
NOTE THE IC904 ON THE BT BOARD REPLACING
When IC904 cannot exchange with single. When IC904 is dam-
aged, exchange the entire mounted board.
MODEL IDENTIFICATION
PART No.
– Back Panel –
Model Part No.
HX50BTR: AEP model 3-284-497-0[]
HX50BTR: Canadian model 3-284-497-1[]
HX50BTR: Russian model 3-284-497-2[]
HX50BTR: Singapore model 3-284-497-3[]
HX50BTR: Korean model 3-284-497-5[]
HX50BTR: Mexican model 3-284-497-7[]
HX50BTR: Chilean and Peruvian models 3-284-497-8[]
HX50BTR: Argentina model 3-284-497-9[]
HX50BTR: Brazilian model 3-290-773-0[]
HX70BTR 3-290-773-1[]
HX90BTR 3-290-773-2[]
HX80R 3-290-773-3[]
Ver. 1.1
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
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HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
5
HOW TO OPEN THE TRAY WHEN POWER SWITCH TURN OFF
ATTENTION WHEN INSTALLING Q12
Make a small hole in the location
of the figure.
Remove the panel (side R).
(Illustration of disaaaembly is omitted.)
chassis (main) panel (front) block
Insert the driver.
Push the lever.
Open the tray.
– chassis (main) side R view –
12 mm
12 mm
Note 2: Open more than 5 mm of screw (BVTP3x8)
installing Q12 in heatsink (REG)
to a chassis (main) from a screw point.
more than 5 mm
Q12
Note 1: Be sure to use an original screw
(Part. No. 7-685-646-79 SCREW +BVTP 3X8 TYPE2 IT-3),
never use a screw longer than an original screw.
Q12
screw (BVTP3x8) chassis (main)
chassis (main)
panel (back)
SW POWER board
SW POWER board
heatsink (REG)
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
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HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
6
SECTION 2
GENERAL This section is extracted
from instruction manual.
Guide to parts and controls
is manual mainly explains operations using the remote, but the same operations can
also be performed using the buttons on the unit having the same or similar names.
Unit
Front panel
Top panel
Remote (RM-AMU009)

/(power) button
Press to turn on the system.

STANDBY indicator
Lights up when the system is turned o.

Remote sensor

BLUETOOTH indicator (HX50BTR/
HX70BTR/HX90BTR only)
Lights up when the Bluetooth function
is active.

BLUETOOTH button (HX50BTR/
HX70BTR/HX90BTR only)
Press to make a connection,
disconnection, or pairing with a
Bluetooth device.

Playback buttons and function
buttons
Unit: BLUETOOTH  (play/
pause) button (HX50BTR/
HX70BTR/HX90BTR only)
Press to select the Bluetooth function.
Press to start or pause playback of the
music on the Bluetooth device (Bluetooth
mobile phone, etc.).
Unit: USB  (play/pause)
button
Press to select the USB function.
Press to start or pause playback of an
optional USB device.
Unit: CD  (play/pause)
button
Press to select the CD function.
Press to start or pause playback of a disc.
Remote: (play) button,
(pause) button
Press to start or pause playback.
Unit: TUNER/BAND button
Press to select the TUNER function.
Press to select FM or AM reception
mode.
Unit: DMPORT  (play/pause)
button (HX80R only)
Press to select the DMPORT function.
Press to start or pause playback of the
audio device connected to the DIGITAL
MEDIA PORT adapter.
Unit: FUNCTION button
Remote: FUNCTION +/– button
Press to select the function.

Unit: /CANCEL (stop/cancel)
button
Remote: (stop) button
Press to stop playback.
Press to cancel search.

SEARCH button (HX50BTR/
HX70BTR)
Press to enter or exit search mode.
SEARCH/DAB AUTO SCAN button
(HX80R/HX90BTR)
Press to enter or exit search mode.
Press to run the DAB Automatic Scan.

Unit: ENTER button
Remote: (enter) button
Press to enter the settings.

/(go back/go forward)
button
Press to select a track or le.
Unit: TUNE +/– (tuning) button
Remote: +/– (tuning) button
Press to tune in the desired station.
+/– (select folder) button
Press to select a folder.
/(rewind/fast forward)
button
Press to nd a point in a track or le.

CD-USB SYNC/REC1 button
Press to record from a disc onto the
connected optional USB device.

USB MENU button
Press to erase audio les and folders from
the connected optional USB device.
Press to select which memory to read
to if the USB device has more than one
memory.

Sound buttons
Unit: DSGX button
Remote: EQ button
Press to select the sound eect.

CLEAR button
Press to delete a pre-programmed track
or le.
Press to erase the pairing registration
information of the Bluetooth device.

TIMER MENU button
Press to set the clock and the Play Timer.

TOOL MENU button
Press to select a menu when using the
DIGITAL MEDIA PORT adapter.

Battery compartment lid

RETURN button
Press to return to the previous menu
when using the DIGITAL MEDIA PORT
adapter.

///button
Press to select the menu items.

TUNER MEMORY button
Press to preset the radio station.

PLAY MODE/TUNING MODE
button
Press to select the play mode of a CD,
MP3 disc or an optional USB device.
Press to select the tuning mode.
XK
REPEAT/FM MODE button
Press to listen to a disc, a single track or
le repeatedly.
Press to select the FM reception mode
(monaural or stereo).
XL
SLEEP button
Press to set the Sleep Timer.
XM
DISPLAY button
Press to change the information on the
display.

Unit: VOLUME control
Remote: VOLUME +/– button
Turn or press to adjust the volume.

(USB) port
Connect to an optional USB device.

(open/close) button
Press to open or close the disc tray.

AUDIO IN jack
Connect to an optional audio
component.

PHONES jack
Connect the headphones.
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
7
Information on the display

Play/Pause

BLUETOOTH (HX50BTR/HX70BTR/
HX90BTR only)
Lights up when the Bluetooth function
is selected.

Tuner reception mode
Tuner reception

REC

Text information

Audio format

Play mode

DSGX

Timer

USB MEMORY
Lights up when an optional USB device
is connected.

DAB service reception (HX80R/
HX90BTR only)
Lights up when secondary service is
received.
Setting the clock
Use buttons on the remote to set the
clock.
1 Press /to turn on the
system.
2 Press TIMER MENU .
e hour indication ashes in the
display.
If “PLAY SET?” ashes in the display,
press /repeatedly to select
“CLOCK SET?” and then press .
3 Press /repeatedly to set
the hour, and then press .
4 Use the same procedure to set
the minutes.
e clock settings are lost when you
disconnect the power cord or if a
power failure occurs.
To display the clock when the system
is off
Press DISPLAY XM. e clock is displayed
for about 8 seconds.
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0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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http://www.xiaoyu163.com

HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
8
SECTION 3
DISASSEMBLY
• This set can be disassembled in the order shown below.
3-1. DISASSEMBLY FLOW
SET
3-2. PANEL (TOP) BLOCK
(Page 9)
3-3. PANEL (FRONT) BLOCK
(Page 9)
3-7. BASE UNIT
(BU-K6BD91UR2-WOD)
(Page 11)
3-8. BELT
(Page 12) 3-9. OP BASE ASSY
(KSM-213D)
(Page 12)
3-4. KNOB ASSY
(Page 10) 3-5. MAIN BOARD (Page 10)
3-6. LOADING MECHANISM BLOCK
(Page 11)
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2
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4 2
9 8
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Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
9
Note: Follow the disassembly procedure in the numerical order given.
3-2. PANEL (TOP) BLOCK
3-3. PANEL (FRONT) BLOCK
screw
(BVTP3
×8)
RB screw
(BVTP3
×8)
RK panel (top) block
RT screw
(BVTP3
×8)
RE three screws
(BVTP3
×8)
screw
(BVTP3
×8)
screw
(BVTP3
×8)
RI connector
(CN507)
screw
(BVTP3
×8)

RH

claw
RG five claws
claw
panel (side R)
R panel (side L)
screw
(BVTP3
×8)

screw
(BVTP3
×8)
RE panel (front) block
screw
(BVTP3
×8)
two screws
(BVTP3
×8)
chassis (top) block
RB two claws
RT two claws
screw
(BVTP3
×8)
flexible flat cable (11 core)
(CN518)
(HX80R/HX90BTR)
flexible flat cable (15 core)
(CN502)
flexible flat cable (15 core)
(CN609)
R connector
(CN501)
DAB cable
(HX80R/HX90BTR)
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2
8 9
4 2
9 8
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Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
10
3-4. KNOB ASSY
3-5. MAIN BOARD
knob assy
screw driver
hole
knob assy
PANEL board back view
panel (front) block
Insert a screw driver into the position shown in the fig
and push it to remove the knob assy,
not giving an excessive force.
RB three screws
(BVTP3
×8)
RG MAIN board
RT screw
(BVTP3
×8)
RE earth wire
(HX80R/HX90BTR)
two screws
(BVTP3
×8)
tuner (FM/AM)
flexible flat cable (9 core)
(HX50BTR: CND, RU, E51, MX, BR, SP, AR, KR models),
flexible flat cable (11 core)
(HX50BTR: AEP/HX70BTR/HX80R/HX90BTR)
(tuner (FM/AM), MAIN board (CN518))
flexible flat cable (11 core)
(CN502)
flexible flat cable (19 core)
(CN510)
flexible flat cable (5 core)
(CN720)
flexible flat cable (21 core)
(CN751)
flexible flat cable (27 core)
(CN701)
connector
(CN504)
R connector
(CN908)
• Abbreviation
AR : Argentina model
BR : Brazilian model
CND : Canadian model
E51 : Chilean and Peruvian model
KR : Korean model
MX : Mexican model
RU : Russian model
SP : Singapore model
Ver. 1.1
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
11
3-6. LOADING MECHANISM BLOCK
3-7. BASE UNIT (BU-K6BD91UR2-WOD)
screw
(BVTP3
×8)
two screws
(BV3)
panel (CD)
R loading mechanism block
screw
(BV3)

DMP board block
two claws
flexible flat cable (5 core)
(CN001) flexible flat cable (27 core)
(CN202)
insulator
insulator
base unit
(BU-K6BD91UR2-WOD)
insulator
insulator
two springs
(insulator)
two floating screws
two floating screws
floating screw

loading (BK) assy
two springs (insulator)
– Bottom view –
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Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
12
3-8. BELT
3-9. OPTICAL PICK-UP BLOCK (KSM-213D)
belt
claw
claw
tray (AU)

belt
position of belt
Remove four solders.
flexible flat cable (16 core)
(CN301)
CD board
op base assy
(KSM-213D)
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4 2
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Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
13
SECTION 4
TEST MODE
COLD RESET
The cold reset clears all data including preset data stored in the
RAM to initial conditions. Execute this mode when returning the
set to the customer.
Procedure:
1. Press three buttons of [x/CANCEL], [DSGX] and [?/1] si-
multaneously.
2. The system is reset and becomes standby states.
COMMON TEST MODE
This mode is used to check operations of amplifier.
Procedure:
1. Press the [?/1] button to turn the power on.
2. Press three buttons of [x/CANCEL], [ENTER] and [Z] si-
multaneously.
3. When the COMMON test mode is activated, “AUDIO IN”
is displayed on the fluorescent indicator tube and “cPLAY
SLEEP” blink on the fluorescent 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 fluorescent indicator tube. Turn the
[VOLUME] knob clockwise, “VOLUME MAX” is displayed
on the fluorescent indicator tube.
6. To release this mode, press the [?/1] button.
PANEL TEST MODE
This mode is used to check the fluorescent 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 [x/CANCEL], [DSGX] and [Z] simul-
taneously.
3. All segments on the fluorescent indicator tube, [STANDBY]
LED and [BLUETOOTH OPR] LED (HX50BTR/HX70BTR/
HX90BTR only) light up.
4. Press the [DSGX] button, the model and destination are dis-
played on the fluorescent indicator tube.
5. Press the [DSGX] button again, MC version is displayed on
the fluorescent indicator tube.
6. Each time [DSGX] button is pressed, the display changes
starting from MC version, GC version, USBL version , USBM
version, BT version (HX50BTR/HX70BTR/HX90BTR only),
CLA 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 ver-
sion display.
7. When [SEARCH] button is pressed while the MC version is
displayed, year, month and day of the software creation is dis-
played. When [SEARCH] button is pressed again, the display
returns to the MC version display.
8. Press the [ENTER] button, the key test mode is activated and
“K 0 V0” is displayed on the fluorescent 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 “K17” (HX80R) or
“K18” (HX50BTR/HX70BTR/HX90BTR).
10. “V” value increases 2, 4, 6 ... if turn the [VOLUME] knob
clockwise, or it decreases 8, 6, 4 ... if turn the knob counter-
clockwise
11. To release this mode, press three buttons in the same manner as
step 2, or disconnect the power cord.
TUNER STEP CHANGE
(HX50BTR: Canadian, Chilean, Peruvian, Mexican, Bra-
zilian, Singapore, Argentina and Korean models)
A step of AM tuning interval can be changed over between 9 kHz
or 10 kHz.
Procedure:
1. Press the [?/1] button to turn the power on.
2. Press the [TUNER/BAND] button to select “AM”.
3. Press the [?/1] button again to turn the power off.
4. Press two buttons of [TUNER/BAND] and [?/1] simultane-
ously.
5. The message “AM 9kHz Step” or “AM 10kHz Step” is dis-
played on the fluorescent indicator tube and thus the tuning
interval is changed over.
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 [?/1] button to turn the power on.
2. Press the [FUNCTION] button to select “CD”.
3. Press two buttons of [SEARCH] and [?/1] simultaneously.
4. After the “STANDBY” display blinks, “LOCK” is displayed
on the fluorescent indicator tube, the ship mode is set.
CD SHIP MODE & MEMORY CLEAR
This mode is used to perform CD ship mode and cold reset simul-
taneously.
Procedure:
1. Press the [?/1] button to turn the power on.
2. Press three buttons of [SEARCH], [DSGX] and [?/1] simulta-
neously.
3. After the “STANDBY” display blinks, “LOCK” is displayed
on the fluorescent indicator tube the ship mode is set and the
system is reset.
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 [x/CANCEL] and [Z] for 5 seconds.
5. The message “LOCKED” is displayed on the fluorescent indi-
cator tube and the disc tray is locked. (Even if pressing the [Z]
button, the message “LOCKED” is displayed on the fluores-
cent indicator tube and the disc tray is locked)
6. To release from this mode, press two buttons of [x/CANCEL]
and [Z] for 5 seconds.
7. The message “UNLOCKED” is displayed on the fluorescent
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 [x/CANCEL] and [?/1] simultaneously.
5. The message “CD POWER ON” or “CD POWER OFF” is dis-
played on the fluorescent indicator tube, and CD power on/off
is changed over in the tuner mode.
Ver. 1.1
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
14
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 [SEARCH], [ +] and [Z] simultane-
ously, the message “SERVICE MODE” is displayed on the
fluorescent indicator tube.
4. Press the [ –] button to move the optical pick-up to inside
track and the message “SLED IN” is displayed on the fluores-
cent indicator tube, or press the [ +] button to outside track
and the message “SLED OUT” is displayed on the fluorescent
indicator tube.
5. Press the [DSGX] button, “LD ON” or “LD OFF” is displayed
on the fluorescent indicator tube. Each time [DSGX] button is
pressed, laser diode on/off is changed over.
6. To release this mode, press the [?/1] button.
BT TEST MODE
(XH50BTR/HX70BTR/HX90BTR)
This mode is used to check the firmware version and address of
bluetooth module.
Procedure:
1. Press the [?/1] button to turn the power on.
2. Press the [FUNCTION] button to select “BLUETOOTH”.
3. Press three buttons of [SEARCH], [FUNCTION] and [BLU-
TOOTH OPR] simultaneously, the message “BT Test” is dis-
played on the fluorescent indicator tube. Then, the display is
automatically changed to the firmware version of bluetooth
module.
4. Press the [DISPLAY] button on the remote commaner, address
of bluetooth module is displayed on the fluorescent indicator
tube.
5. To release this mode, press the [?/1] button.
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Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
1515
SECTION 5
ELECTRICAL CHECKS
FM TUNE LEVEL CHECK
signal
generator set
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. Confirm “TUNED” is lit on the display for A, B and C sig-
nals.
When the selected station signal is received in good condition,
“TUNED” is displayed.
Note:
1. CD Block is basically constructed to operate without adjust-
ment.
2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicat-
ed.
3. Use an oscilloscope with more than 10 MΩimpedance.
4. Clean the object lens by an applicator with neutral detergent
when the signal level is low than specified value with the fol-
lowing checks.
5. Check the focus bias check when optical pick-up block is re-
placed.
FOCUS BIAS CHECK
+
–
CD board
TP121 (RFI)
TP124 (VC)
oscilloscope
(DC range)
Procedure:
1. Connect oscilloscope to TP121 (RFI) and TP124 (VC) on the
CD board.
2. Press the [?/1] button to turn the power on.
3. Set disc (YEDS-18) on the disc tray and press the [CD u]
button to playback.
4. Confirm that oscilloscope waveform is as shown in the figure
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:
1.2 ± 0.3 Vp-p
Checking Location:
TUNER SECTION CD SECTION
TP124
(VC)
– CD Board (Conductor Side) –
TP121
(RFI)
IC101
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Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
1616
SECTION 6
DIAGRAMS
6-1. BLOCK DIAGRAM - CD SERVO Section -
SYSTEM CONTROLLER
IC301 (1/5)
CD-MP3 PROCESSOR
IC101
MUTE
2-AXIS
DEVICE
(TRACKING)(FOCUS)
95
89
A
AVDD
+3.3V
DETECTOR
FNi1 (A)
RFo
97 FPi1 (B) 88
2
AGCi
3RFRP RFZi
76TEi TEZi
83RFEQo 81 RFi
82 RFRPi
30LO
27RO
65AIN (PI4) 66BCKi (PI5) BCK
A-IN
BUS1
BUS0
BUS2
BUS3
BUCK
67LRCKi (PI6) LRCK
51PIO3 GATE
49PIO1 ST-REQ
38BUS0
R-CH
94 FNi2 (C)
96 FPi2 (D)
100 TNi (E)
98 TPi (F)
91 LDo 92MDi
2 VO1+
1 VO1–
13 DMO
AUTOMATIC
POWER CONTROL
Q301
LD
PD
LASER DIODE
OPTICALPICK-UP
BLOCK
(KSM-213DCP)
B
C
D
E
F
12 FMO
10 TRo
9FOo
20 IO0 (/HSO)
I-VAMP
M401
(SPINDLE)
M402
(SLED)
12 VO2–
11 VO2+
18 VO3+
17 VO3–
26 VO4+
27
7
IN4’ 24
IN3’ 20
IN2’ 9
IN1 3
BIAS 23
84 VRo
VO4–
M
M
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE MOTOR DRIVE
IC401
S201
(LIMIT)
DVDD
+3.3V
24
XO
23
XI
X102
16.9344MHz
95 CD DRIVER MUTE
LOADING
MOTOR DRIVE
IC701
CDM LOAD IN 53
CDM LOAD OUT
CDM OPEN SW
CDM CLOSE SW
54
51
52
M
A
CD-L
B
DATA, CLOCK,
A-IN, BCK, LRCK,
GATE, ST-REQ
C
BUS0 – BUS3,
BUCK, CCE, REQ
: CD PLAY
SIGNALPATH
R-ch is omitted due to same as L-ch.
: USB
VCC
A
B
C
D
E
F
LD
PD
SP+
VC
SP–
SL+
SL–
T+
T–
F+
F–
1 2 3 CD BUS0
13
39BUS1 4 3 2 CD BUS1
5
40BUS2 (SO) 8 9 1 CD BUS2
23 CD CLK
6
41BUS3 (SI) 11 10 100 CD BUS3
12
BUS SWITCH
IC754
1 2
13
4 3
5
8 9
6
11 10
12
BUS SWITCH
IC753
DATASELECTOR
IC751
A/B
Q352
42BUCK (CLK) 42
3
CCE 21 CD CCE
43XCCE
54SBSY
48PIO0
7
7 MP3 IREQ
25 DEC BUS SEL
19 SBSY
37XRST 94 CD XRST
5
REQ
6
12
14
13
9
10
11
1
S001
DISC TRAY
OPEN/CLOSE DETECT
OPEN
CLOSE
M001
(LOADING)
47AOUT2 (PO5) 63BCK (PO8) CLOCK
DATA
(Page 18)
(Page 17)
(Page 17)
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
1717
6-2. BLOCK DIAGRAM - TUNER/USB/BLUETOOTH Section -
BUS1
BUS0
BUS2
BUS3
BUCK
CCE
REQ
LB
I/O0 – I/O15
D0 – D15
S-RAM
IC921
39
UB 40
OE 41
WE 17
CE 6
79 D+
80 D–
77 USBOC
USB CONTROLLER
IC901
35 USB TXD_OUT
SYSTEM CONTROLLER
IC301 (2/5)
CN902
(USB)
3
2
1
D+
D–
78 USBPON
70 CS2
64 RD
65 WR
66 SRLLB
67 SRLUB
VBUS
B
DATA, CLOCK,
A-IN, BCK, LRCK,
GATE, ST-REQ
C
BUS0 – BUS3,
BUCK, CCE, REQ
VBUS POWER
ON/OFF SWITCH
IC915
5
1
4OUT
EN 3
FLG
IN VBUS
+5V
93DATA 92BCK BCK
A-IN
LRCK
GATE
ST-REQ
71LRCK 94GATE 97ST-REQ
55BUS0 56BUS1
88RXD1 36 USB RXD_IN87TXD1
38 USB RTS2DI 6 USB_CTS84DO 5 USB_RESET1/RESET
57BUS2 58BUS3 59/BUCK 60/CCE 96REQ
7 – 10, 13 – 16,
29 – 32, 35 – 38 18 – 25, 28 – 35
A0 –A15 A1 –A16
44 – 42, 27 – 24,
21 – 18, 5 – 1
37 – 43, 46 – 54
73
X2
75
X1
X901
9MHz
: USB
CLOCK
DATA
85DATA 86CLOCK :AUDIO
: CD PLAY
SIGNALPATH
R-ch is omitted due to same as L-ch.
: TUNER (FM/AM)
ANT901
33 BT CTS
34 BT RTS
31 BTTXD_OUT
32 BT RXD_IN
IC904
BLUETOOTH MODULE
10A_OUT_P_L
9A_OUT_N_L
5A_IN_P_L
4A_IN_N_L
8A_OUT_P_R
7A_OUT_N_R
41UART_TXD 40UART_RXD
38UART_CTS 39UART_RTS
49 BT RESET
45 BTAV ROLE12PIO_00 46RESET
MIXAMP
IC902
3A_IN_P_R
2A_IN_N_R
D
TUNER-L
PATTERN
ANTENNA
(FOR BLUETOOTH)
R-CH
R-CH
LINEAMP
IC901
(HX50BTR/HX70BTR/HX90BTR)
E
BT-L
F
BT OUT-L
TUNER (FM/AM)
AM
FMANT
AMANT
L OUT
R OUT
DO/STEREO
R-CH
RDS DATA
RDS CLK
ST DIN
ST CLK
ST CE
FM75Ω
COAXIAL
ANTENNA
82 ST DATAIN/STEREO
83 RDS DATA
18 RDS INT
80 ST DATAOUT
81 ST CLK
79 ST CE
HX50BTR:AEP/HX70BTR/
HX80R/HX90BTR
: BLUETOOTH IN
: BLUETOOTH OUT
TUNED 76 STTUNED
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HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
1818
6-3. BLOCK DIAGRAM - MAIN Section -
(HX50BTR/HX70BTR/HX90BTR)
(HX80R/HX90BTR)
OUTPUT SELECTOR
IC510
A
13 14
12
10
AUDIO IN R-CH
J981
CD-L
A
BT-L
E
TUNER-L
D
6
9
4
2
10
A
9
B
SELA
70
SELB
71
26
SDA
25
SCL
AMP IIC_SDA
24
AMP IIC_CLK
22
TALINE-MUTE
89
HP MUTE
87
HP DET
86
AUDIO IN DET
85
G
(HX50BTR/HX70BTR/HX90BTR)
L-CH
F
BT OUT-L
X
X1
X0
OUT2
INPUT SELECTOR, ELECTRICAL VOLUME,
SURROUND/TONE CONTROL
IC501
SYSTEM CONTROLLER
IC301 (3/5)
:AUDIO
: CD PLAY
SIGNALPATH
R-ch is omitted due to same as L-ch.
: DMPORT
: TUNER (DAB)
:AUDIO IN
: TUNER (FM/AM)
PHONES
R-CH
J982
15
12
BTAUD OUT MUTE
88
6
INHSELINH
72
Q370
Q371(HX80R/HX90BTR)
Q372
Q388
INPUT SELECTOR
IC503
13
X0
14 X1
X2
C2
8D2
SEL2
VOL2
B2
A2
X
12
MUTING
Q511
R-CH
19
MUTING
CONTROLSWITCH
Q389, 504
MUTING
Q554
R-CH
R-CH
MUTING
CONTROLSWITCH
Q387, 551
HEADPHONE
AMP
IC551
CN901
13
11
L+
L–
DMPORT
(HX50BTR/HX70BTR/HX90BTR)
(HX80R)
(HX50BTR/HX70BTR/HX90BTR)
DAB TXD_OUT
47
DAB RXD_IN
48
DAB TUNER MODULE
DABANT AUDL
AUDR
S1_DOUT
R-CH
S1_DIN
LOW-PASS
FILTER
IC803
ANTENNA
DAB 75Ω
14
12
R+
R–
6
5
TXD
RXD
7DET
LINEAMP
IC521
CLINK RXD_IN
78
DMPORT DET
84
CLINK TXD_OUT
77
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
1919
6-4. BLOCK DIAGRAM - AMP Section -
SYSTEM CONTROLLER
IC301 (4/5)
L-CH
SD
G13
A/D CONVERTER
IC701 (HX50BTR/HX80R/HX90BTR)
IC701 (HX70BTR)
STREAM PROCESSOR
IC705 (HX50BTR/HX80R/HX90BTR)
IC705 (HX70BTR)
LI-N 31 DATA
6SCKI
DOUT 930 BCKBCK 829 LRCK
36 XFSIIN
48 XFSOIN
LRCK 7
S-MASTER DATA 39
OUTL1 11
DIGITAL POWERAMP
IC707
4 PWM_A
6 PWM_B
16
3
PWM_D
/SD
14 PWM_C
OUT_A 33
OUT_B 30
OUT_D 22
OUT_C 25
OUTL2 9
15
/RST_CD
5
/RST_AB
OUTR1 6
OUTR2 4
X702
49.152MHz
21 SCDT
S-MASTER SHIFT 40 22 SCSHIFT
S-MASTER LATCH 42 23 SCLATCH
S-MASTER PG MUTE 27 20 PGMUTE
S-MASTER SOFT MUTE 28 19 SOFTMUTE
S-MASTER NSP MUTE 43 18 NSPMUTE
S-MASTER INIT 44 27 INIT
S-MASTER RST 37
S-MASTER SD 26
CLOCK SHIFT
IC703
(HX50BTR/HX80R/HX90BTR)
IC703 (HX70BTR)
CLOCK BUFFER
IC709
(HX50BTR/HX80R/HX90BTR)
IC709 (HX70BTR)
(HX50BTR/HX80R/HX90BTR)
DIGITAL POWERAMP
IC707
2BP
17 AP
3
/SD
OUT_B 29
OVER LOAD
DETECT
Q702, 703
OVER LOAD
DETECT
Q752, 753
OUT_A 25
OUT_B 30
OUT_A 26
4
/RST
DIGITAL POWERAMP
IC708
2BP
17 AP
3
/SD
OUT_B 29
OUT_A 25
OUT_B 30
OUT_A 26
4
/RST
(HX70BTR)
L.P.F.
L.P.F.
L.P.F.
L.P.F.
PROTECT
DETECT
Q701
R
L
+
–
+
–
SPEAKER
J860
:AUDIO
SIGNALPATH
R-ch is omitted due to same as L-ch.
H
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HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
2020
6-5. BLOCK DIAGRAM - PANEL/POWER SUPPLY Section -
FL901
FLUORESCENT
INDICATOR TUBE
DA
CP
CS
1G, 12G
VH
Q1, Q12
GRID DRIVE
Q901, 902 VH B+
F+
VDD
VFD +7V
EVER +3.3V
D909
REMOTE CONTROL
RECEIVER
IC951
SYSTEM CONTROLLER
IC301 (5/5)
90STBY_RELAY
20AC_CUT RESET SIGNAL
GENERATOR
IC401
RESET SWITCH
Q312
B+ SWITCH
Q952
69AC DET
12RESET
65 VOLUME JOG
KEY1 – KEY3
66 – 68
60 STBY LED
4 SIRCS
D951
STANDBY LED DRIVE
Q951
63 BT LED
D953
BLUETOOTH
LED DRIVE
Q953
ROTARY
ENCODER
VOLUME
RV952
13
XOUT
15
XIN
X302
5MHz
11
XCOUT
10
XCIN
X301
32.768kHz
FLSD
58 FLSCLK
56 FLCS
57 FLRESET
59
74 KEY WAKE UP
S951 – 954,
S961 – 963,
S965 – 968,
S970 – 976
(AC IN)
T51
SUB POWER
TRANSFORMER
T31
MAIN POWER
TRANSFORMER
F1
LINE
FILTER
T1
RECT
D1
93CD ON
55FL POWER ON
D51
D14
4
POWER
CONTROL
IC51
VCC
5DRAIN
2 FB
POWER CONTROL
IC11
1VSENSE
2 F/B
9 OCP
16 VG (H)
ISOLATOR
PH51
FEED BACK
SWITCH
Q51
ISOLATOR
PH12
SHUNT
REGULATOR
IC71
18VD
SWITCHING
Q12
12 VG (L)
SWITCHING
Q11
15 VS
8VC1
Q2
RECT
D32
RECT
D31
D33
+27V
DAB +9V
DVDD
+3.3V
+1.5V
AVDD
+3.3V
+12V
D401
+3.3V
EVER
+3.3V
VCC
TUNER +9V
FUNC +9V
AMP +5V
VH B+
+5V
REGULATOR
IC505
+9V
REGULATOR
IC502
50BT POWER
DC/DC
CONVERTER
Q906, 907
B+ SWITCH
IC901-2, Q904, 908
+3.3V
(FORADC )
+3.3V
REGULATOR
Q513
+1.5V
REGULATOR
IC201
DC DETECT
Q64, 82 – 84
POWER ON/OFF
CONTROLSWITCH
Q81
92USB POWER
USB
+3.3V
RESET
D474
(HX80R/HX90BTR)
(HX50BTR/HX70BTR/HX90BTR)
(HX50BTR/HX70BTR/HX90BTR)
(HX80R/HX90BTR)
(HX50BTR/HX70BTR/HX90BTR)
FOR
ROTARY ENCODER
TH1
ISOLATOR
PH11
POWER CONTROL
SWITCH
IC901-1, Q903, 905
B+ SWITCH
Q602, 606, 624
+
B+ SWITCH
Q316, 399
PROTECTOR
Q71, 72
+
HX50BTR:
CND, E51, MX, BR
(HX50BTR: E51, BR)
(HX50BTR: CND, MX)
HX50BTR:AEP, RU, SP,AR, KR/
HX70BTR/HX80R/HX90BTR
RECT
D43, 44
AC DETECT
Q60 – 63
+3.3V
REGULATOR
Q392, 706, 707
+3.3V
REGULATOR
Q393, 702 – 704 +12V
REGULATOR
Q707
BT +9V
+3.3V REGULATOR
IC702
(HX50BTR/HX80R/HX90BTR)
IC702 (HX70BTR)
+5V REGULATOR
IC507
+5V REGULATOR
IC506
91DMPORT POWER
DMP +5V
AMP D +3.3V
+1.8V REGULATOR
IC704
(HX50BTR/HX80R/HX90BTR)
IC704 (HX70BTR)
+1.8V
+3.3V REGULATOR
IC801
+1.2V REGULATOR
IC802
75DAB-POWER_1.2
73DAB-POWER_3.3
DAB +3.3V
VFD +7V
DAB +1.2V
BT +3.3V +3.3V REGULATOR
IC903
VBUS +5V
HPAMP +12V RIPPLE FILTER
Q555
D +12V
SUHT DOWN
CONTROLSWITCH
Q426, 716
SUHT DOWN
CONTROLSWITCH
Q326, 390
SD H
Abbreviation
: Canadian modelCND: Chilean and Peruvian modelsE51
: Russian modelRU
: Korean modelKR : Mexican modelMX
: Singapore modelSP
S1
VOLTAGE SELECTOR
120 – 127V
220 – 240V
:Argentina modelAR : Brazilian modelBR
(Page 19)
Ver. 1.1
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