ZS-BTY50, ZS-BTY52, ZS-BTY55 - Sony Audio Service Manual (repair manual)

zs-bty50, zs-bty52, zs-bty55 service manual
Model
ZS-BTY50 ZS-BTY52 ZS-BTY55
Pages
80
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8.1 MB
Type
PDF
Document
Service Manual
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Device
Audio
File
zs-bty50-zs-bty52-zs-bty55.pdf
Date

Read Sony ZS-BTY50 / ZS-BTY52 / ZS-BTY55 Service Manual online

SERVICE MANUAL
Sony Corporation
Published by Sony Techno Create Corporation
SPECIFICATIONS
9-893-632-03
2013D33-1
© 
2013.04
US Model
Canadian Model
ZS-BTY50
AEP Model
UK Model
E Model
Australian Model
ZS-BTY52
Mexican Model
ZS-BTY55
Ver. 1.2  2013.04
ZS-BTY50/BTY52/BTY55
ZS-BTY50/BTY52
PERSONAL AUDIO SYSTEM
ZS-BTY55
RADIO AM/FM CON BLUETOOTH
Photo: ZS-BTY52
(BTY50 only)
AUDIO POWER  SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION
(The United States model only)
With 3-ohm loads, both channels driven from
150 Hz 
 10, 000 Hz; rated 1.5 W per channel-
 
minimum RMS power, with no more  than 10 %
total harmonic distortion in AC operation.
General (BTY50)
Speaker
Full range, 10 cm (4 in) dia., 3  , cone type (2)
Power output
2.5 W + 2.5 W (at 3  , 10% harmonic distortion)
Power requirements
120 V  AC, 60 Hz (AC power supply)
9 V DC (6 R14 (size C) batteries)
Power consumption
AC 11 W
Battery Life*
1, 
*
2
FM reception
Approx. 16 hours
*1 Measured by Sony standards. The actual battery life may
vary depending on the circumstances of the unit or 
operating conditions.
*2 When using Sony alkaline batteries
Dimensions
App rox. 398 mm × 159 mm × 220 mm 
(15 
3
/
4
 in × 6 
3
/
8
 in × 8 
3
/
4
 in) (W/H/D) (incl.
projecting parts)
Mass
App rox. 2.9 kg (6 lb 6 oz) (incl.  batteries)
USB section (BTY52/BTY55 only)
Supported bit  rates
MP3 (MPEG 1 Audio Layer-3):
32 kbps 
 320 kbps, VBR
WMA:
48 kbps 
 192 kbps, VBR
AA C (MPEG 4 AAC-LC):
16 kbps 
 320 kbps, VBR
Sampling fr equencies
MP3 (MPEG 1 Audio Layer-3):
32/ 44. 1/48 kHz
WMA:
32/ 44. 1/48 kHz
AA C (MPEG 4 AAC-LC):
32/ 44. 1/48 kHz
Bluetooth section
Communication System
Bluetooth Specification Version 3.0
Modulation method
FHSS
Output
Bluetooth Specification 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)
Supported Bluetooth  Profiles*
2
A2DP (Advanced Audio Distribution Profile)
AVRCP*
3
 (Audio/Video Remote Control Profile)
Supported codec*
4
SBC (Subband Codec)
*
1
 The actual range will  vary depending on factors 
such as obstacles between devices,  magnetic 
fields around a microwave oven, static
electricity , reception sensitivity, aerial
perf ormanc e, operating system, application
software, etc.
*
2
 Bluetooth standard profiles provide the
specifications for Bluetooth communication 
between devices.
*
3
 Some operations may not be available 
depending on the device.
*
4
 Codec:  Audio signal compression and
conversion format
Radio section (BTY50/BTY55)
Frequency range
FM:  87.5 MHz 
 108 MHz
AM:  530 kHz 
 1,710 kHz
Intermediate frequency
FM:  128 kHz
AM:  45 kHz
Antennas
FM:  Telescopic antenna
AM:  Built-in ferrite bar antenna
Input
AUDIO IN
Stereo mini jack
 (USB) port (BTY52/BTY55 only) 
Type A,  maximum current 500 mA, USB 2.0 Full 
Speed compatible
General (BTY55)
Speaker
Full range ,  10 cm dia.,  3  ,  cone type (2)
Power output
With AC power
2.5 W + 2.5 W (at 3  , 10% harmonic 
distortion)
With internal rechargeable battery power 
2.5 W + 2.5 W (at 3  , 10% harmonic 
distortion)
Power requirements
120 V  AC,  60 Hz (AC power supply)
9. 6 V DC 1, 800 mAh (Internal Nickel Metal 
Hydride rechargeable battery)
Power consumption
18 W
Battery Life*
Playback of USB device
App rox .  4.5 hours (at 100 mA load)
App rox .  2.5 hours (at 500 mA load)
FM rece ption
App rox . 5.5 hours
Measured by Sony standards. The actual battery life may
vary depending on the circumstances of the unit or 
operating conditions.
Dimensions
App rox .  398 mm × 159 mm × 220 mm (W/H/D) 
(incl.  projecting parts)
Mass
App rox . 2.7 kg
Frequency range
European, Australian, Taiwan and Thai models
FM:  87.5 MHz 
 108 MHz (50 kHz step)
AM:  531 kHz 
 1,602 kHz (9 kHz step)
Uruguay, Paraguay, Peru and Chile models
FM:  87.5 MHz 
 108 MHz (100 kHz step)
87.5 MHz 
 108 MHz (50 kHz step)
AM:  530 kHz 
 1,6 10 kHz (10 kHz step)
531 kHz 
 1,602 kHz (9 kHz step)
Latin American models except for Uruguay,
Paraguay, Peru and Chile models
FM:  87.5 MHz 
 108 MHz (100 kHz step)
AM:  530 kHz 
 1,710 kHz (10 kHz step)
Other models
FM:  87.5 MHz 
 108 MHz (50 kHz step)
87.5 MHz 
 108 MHz (100 kHz step)
AM:  531 kHz 
 1,602 kHz (9 kHz step)
530 kHz 
 1,6 10 kHz (10 kHz step)
Intermediate frequency
FM:  128 kHz
AM:  45 kHz
Antennas
FM:  Telescopic antenna
AM:  Built-in ferrite bar antenna
General (BTY52)
Speaker
Full range , 10 cm dia.,  3  , cone type (2)
Power output
2.5 W + 2.5 W (at 3  , 10% harmonic distortion)
Power requirements
European, Australian, Uruguay, Paraguay, Peru
and Chile models
230 V  AC, 50 Hz (AC power supply)
9 V DC (6 R14 (size C) batteries)
Taiwan and Latin American models except for 
Uruguay, Paraguay, Peru and Chile models
120 V  AC, 60 Hz (AC power supply)
9 V DC (6 R14 (size C) batteries)
Other models
Thai model
230 V 
 24 0 V  AC, 50 Hz (AC power supply)
9 V DC (6 R14 (siz
220 V AC, 50 Hz (AC power supply) 
9 V DC (6 R14 (size C) batteries)
e C) batteries)
Power consumption
AC 13 W
Dimensions
App rox. 398 mm × 159 mm × 220 mm (W/H/D) 
(incl.  projecting parts)
Mass
App rox. 2.9 kg (incl.  batteries)
Radio section (BTY52)
Supplied accessories
AC power cord (1) 
Design and specifications are subject to change
without notice.
Output
 (headphones) stereo mini jack
For 16     32   impedance headphones
Battery Life*
1, 
*
2
Playback of USB device
App rox. 11 hours (at 100 mA load)
App rox. 3.5 hours (at 500 mA load)
*1 Measured by Sony standards. The actual battery life may  
vary depending on the circumstances of the unit or 
operating conditions.
*2 When using Sony alkaline batteries
FM reception 
Approx. 16 hours
ZS-BTY50/BTY52/BTY55
2
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.
SAFETY  CHECK-OUT
After correcting the original service problem, perform the follow-
ing safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, 
screws, and all other exposed metal parts for AC leakage.
Check leakage as described below.
LEAKAGE  TEST
The AC leakage from any exposed metal part to earth ground and 
from all exposed metal parts to any exposed metal part having a 
return to chassis, must not exceed 0.5 mA (500 microamperes.). 
Leakage current can be measured by any one of three methods.
1.  A commercial leakage tester, such as the Simpson 229 or RCA 
WT-540A. Follow the manufacturers’ instructions to use these 
instruments.
2.  A battery-operated AC milliammeter. The Data Precision 245 
digital multimeter is suitable for this job.
3.  Measuring the voltage drop across a resistor by means of a 
VOM or battery-operated AC voltmeter. The “limit” indication 
is 0.75 V, so analog meters must have an accurate low-voltage 
scale. The Simpson 250 and Sanwa SH-63Trd are examples 
of a passive VOM that is suitable. Nearly all battery operated 
digital multimeters that have a 2 V AC range are suitable. (See 
Fig. A)
1.5 k
Ω
0.15 
μF
AC
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
Fig. A.  Using an AC voltmeter to check AC leakage.
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  FONC-
TIONNEMENT.  NE  REMPLACER  CES  COMPOSANTS  QUE  
PAR  DES  PIÈCES  SONY  DONT  LES  NUMÉROS  SONT  DON-
NÉS  DANS  CE  MANUEL  OU  DANS  LES  SUPPLÉMENTS  
PUBLIÉS  PAR  SONY.
  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 contains technology subject to
certain intellectual property rights of Microsoft.
Use or distribution of this technology outside 
of this product is prohibited without the 
appropriate license(s) from Microsoft.
  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.
  The N Mark is a trademark or registered
trademark of NFC Forum,  Inc.  in the United
States and in other countries.
  Android is a trademark of Google Inc.
  All other trademarks and registered trademarks 
are of their respective holders.  In this manual,
™ and ® marks are not specified.
CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type.
CAUTION 
 These servicing instructions are for use by qual-
ifi ed service personnel only.
To reduce the risk of electric shock, do not perform any ser-
vicing other than that contained in the operating instructions 
unless you are qualifi ed to do so.
ZS-BTY50/BTY52/BTY55
3
1. 
SERVICING  NOTES 
 .............................................  
4
2. DISASSEMBLY
2-1. Disassembly 
Flow 
...........................................................   5
2-2. Cover 
(Lch/Rch) 
.............................................................   6
2-3.  Ferrite-rod Antenna Coil (L100) .....................................   7
2-4.  Battery Case Lid Block (BTY50/BTY52) ......................   8
2-5.  Battery Case Lid Block (BTY55) ...................................   8
2-6.  Nickel Battery Sub Assy (BAT1) (BTY55) ....................   9
2-7. Jack 
Lid 
...........................................................................   9
2-8.  Cabinet (Upper) Block ....................................................   10
2-9. VOL 
Board 
......................................................................  11
2-10. Bluetooth Module ...........................................................   11
2-11. LCD Board ......................................................................   12
2-12. KEY Board ......................................................................   13
2-13.  Cabinet (Lower) Block (BTY50/BTY52) .......................   14
2-14.  Cabinet (Lower) Block (BTY55) ....................................   15
2-15.  MAIN Board (BTY50/BTY52) ......................................   16
2-16.  MAIN Board (BTY55) ...................................................   16
2-17.  UPDATE Board (BTY50/BTY52) ..................................   17
2-18.  UPDATE Board (BTY55) ...............................................   17
2-19.  BATTERY Board (BTY50/BTY52) ...............................   18
2-20.  CHARGE Board (BTY55) ..............................................   18
2-21.  JACK Board (BTY50) ....................................................   19
2-22.  JACK Board (BTY52) ....................................................   20
2-23.  JACK Board (BTY55) ....................................................   21
2-24. TUNER Board ................................................................   22
2-25. Cover (Handle) ...............................................................   23
2-26.  Box (R) Block .................................................................   23
2-27.  Fuse, POWER Board Block ............................................   24
2-28. POWER Board ................................................................   25
2-29. INLET Board ..................................................................   26
2-30. Joint (Rch) .......................................................................   27
2-31.  Loudspeaker (10.2 cm) (Rch) (SP2) ...............................   27
2-32.  Box (L) Block .................................................................   28
2-33. Joint (Lch) .......................................................................   29
2-34.  Loudspeaker (10.2 cm) (Lch) (SP1) ...............................   30
2-35.  Light Guide Plate Block .................................................   30
2-36. LED Board ......................................................................   31
2-37. NFC Tag (RC-S710) .......................................................   32
3. 
TEST  MODE 
 ............................................................   33
TABLE  OF  CONTENTS
4. 
ELECTRICAL  CHECKS 
 ......................................   35
5. DIAGRAMS
5-1.  Block Diagram - AUDIO Section - .................................   36
5-2. Block 
Diagram 
 
- PANEL/POWER SUPPLY Section - ............................   37
5-3.  Printed Wiring Boards - MAIN Section - .......................   39
5-4.  Schematic Diagram - MAIN Section (1/3) - ...................   40
5-5.  Schematic Diagram - MAIN Section (2/3) - ...................   41
5-6.  Schematic Diagram - MAIN Section (3/3) - ...................   42
5-7.  Printed Wiring Board - TUNER Board - ........................   43
5-8.  Schematic Diagram - TUNER Board - ...........................   43
5-9.  Printed Wiring Boards - LED/LCD Boards - ..................   44
5-10.  Schematic Diagram - LED Board - .................................   44
5-11.  Schematic Diagram - LCD Board - ................................   45
5-12.  Printed Wiring Boards - PANEL Section - .....................   46
5-13.  Schematic Diagram - PANEL Section - ..........................   47
5-14. Printed Wiring Board 
 
- CHARGE Board (BTY55 only) - .................................   48
5-15. Schematic Diagram 
 
- CHARGE Board (BTY55 only) - .................................   49
5-16.  Printed Wiring Boards - POWER SUPPLY Section - ....   50
5-17.  Schematic Diagram - POWER SUPPLY Section - .........   51
6. 
EXPLODED  VIEWS
6-1.  Overall Section (BTY50/BTY52) ...................................   57
6-2.  Overall Section (BTY55) ................................................   58
6-3.  Cabinet (Upper) Section .................................................   59
6-4.  Cabinet (Lower) Section (BTY50/BTY52) ....................   60
6-5.  Cabinet (Lower) Section (BTY55) .................................   61
6-6.  Cover (Handle) Section ..................................................   62
6-7.  Box (R) Section ..............................................................   63
6-8.  Box (L) Section ...............................................................   64
6-9.  Cabinet (Front) Section ...................................................   65
6-10. Loudspeaker Section .......................................................   66
7. 
ELECTRICAL  PARTS  LIST 
 ..............................   67
Accessories are given in the last of the electrical parts list.
ZS-BTY50/BTY52/BTY55
4
SECTION  1
SERVICING  NOTES
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.
NOTE  OF  REPLACING  THE  IC801  ON  THE  MAIN 
BOARD
IC801 on the MAIN board cannot exchange with single. When this 
part is damaged, exchange the complete mounted board.
NOTE  OF  REPLACING  THE  IC001  ON  THE  TUNER  
BOARD
IC001 on the TUNER board cannot exchange with single. When 
this part is damaged, exchange the complete mounted board.
NOTE  OF  REPLACING  THE  RV1001  AND  RV1002  ON  
THE  CHARGE  BOARD  (BTY55 only)
RV1001 and RV1002 on the CHARGE board cannot exchange 
with single. When these parts are damaged, exchange the complete 
mounted board.
• COLOR VARIATIONS
MODEL  IDENTIFICATION
Distinguish the destination by referring to the model number label.
– Rear side view –
Part No.
Model number label
Model
Part No.
BTY50: US model
4-439-744-0[]
BTY50: Canadian model
4-439-745-0[]
BTY52: AEP and UK models
4-439-746-0[]
BTY52: Taiwan model
4-439-747-0[]
BTY52: East European model
4-439-748-0[]
BTY52: Singapore model
4-439-749-0[]
BTY52: Australian model
4-439-750-0[]
BTY52: 120V AC area in E model
4-439-751-0[]
BTY52: 230V AC area in E model
4-439-752-0[]
BTY52: Thai model
4-466-776-0[]
BTY55: Mexican model
No Label
Color
(B) Black
(B) Black
 (R) Red
Image
ZS-BTY50
US, CND
ZS-BTY52
AEP, EE, UK, AUS, SP, TW, TH
E41, E92
AUS, SP
ZS-BTY55
MX
MX
• Abbreviation
 AUS : 
Australian 
model
  CND  : Canadian model
  E41 
: 230V AC area in E model
  E92 
: 120V AC area in E model
  EE 
: East European model
  MX 
: Mexican model
  SP 
: Singapore model
 TH  : 
Thai 
model
 TW  : 
Taiwan 
model
Ver. 1.2
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