CMT-HX50BTR, CMT-HX70BTR, CMT-HX80R, CMT-HX90BTR, HCD-HX50BTR, HCD-HX70BTR, HCD-HX80R, HCD-HX90BTR - Sony Audio Service Manual (repair manual)

cmt-hx50btr, cmt-hx70btr, cmt-hx80r, cmt-hx90btr, hcd-hx50btr, hcd-hx70btr, hcd-hx80r, hcd-hx90btr service manual
Model
CMT-HX50BTR CMT-HX70BTR CMT-HX80R CMT-HX90BTR HCD-HX50BTR HCD-HX70BTR HCD-HX80R HCD-HX90BTR
Pages
82
Size
7.35 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cmt-hx50btr-cmt-hx70btr-cmt-hx80r-cmt-hx90btr-hcd-.pdf
Date

Read Sony CMT-HX50BTR / CMT-HX70BTR / CMT-HX80R / CMT-HX90BTR / HCD-HX50BTR / HCD-HX70BTR / HCD-HX80R / HCD-HX90BTR Service Manual online

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 amplifi er,  bluetooth, 
USB, CD player and tuner section in CMT-
HX50BTR.
•  HCD-HX70BTR is the amplifi er,  bluetooth, 
USB, CD player and tuner section in CMT-
HX70BTR.
•  HCD-HX80R is the amplifi er, USB, CD play-
er and tuner section in CMT-HX80R.
•  HCD-HX90BTR is the amplifi er,  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 m
1)
Frequency band:
2.4 GHz band (2.4000 GHz 
– 2.4835 GHz)
Modulation method:
FHSS
Compatible Bluetooth profiles
2)
:
A2DP (Advanced Audio Distribution 
Profile)
AVRCP (Audio Video Remote 
Control Profile) 
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)
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.
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
* This 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
HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
2
SAFETY-RELATED COMPONET 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  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 specifications 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 specifi ed herein may result in hazardous radiation exposure.
This appliance is classified as a CLASS 1 
LASER product. This marking is located 
on the rear exterior.
Ver. 1.1
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
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 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 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 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.
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 fl uorescent 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
Page of 82
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Here you can read online and download Sony CMT-HX50BTR / CMT-HX70BTR / CMT-HX80R / CMT-HX90BTR / HCD-HX50BTR / HCD-HX70BTR / HCD-HX80R / HCD-HX90BTR Service Manual in PDF. CMT-HX50BTR / CMT-HX70BTR / CMT-HX80R / CMT-HX90BTR / HCD-HX50BTR / HCD-HX70BTR / HCD-HX80R / HCD-HX90BTR service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony CMT-HX50BTR / CMT-HX70BTR / CMT-HX80R / CMT-HX90BTR / HCD-HX50BTR / HCD-HX70BTR / HCD-HX80R / HCD-HX90BTR Audio. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.