ZS-RS70BT, ZS-RS70BTB - Sony Audio Service Manual (repair manual)

zs-rs70bt, zs-rs70btb service manual
Model
ZS-RS70BT ZS-RS70BTB
Pages
80
Size
5.89 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
zs-rs70bt-zs-rs70btb.pdf
Date

Read Sony ZS-RS70BT / ZS-RS70BTB Service Manual online

SERVICE MANUAL
Sony Video & Sound Products Inc.
Published by Sony Techno Create Corporation
SPECIFICATIONS
9-893-795-05
2015K33-1
© 
2015.11
AEP Model
UK Model
ZS-RS70BTB
E Model
East European Model
Russian Model
ZS-RS70BT
Ver. 1.4  2015.11
ZS-RS70BT/RS70BTB
PERSONAL AUDIO SYSTEM
Photo: ZS-RS70BT
CD player section
System
Compact disc digital audio system
Laser diode properties
Emission duration: Continuous
Laser output: Less than 44.6 μW
(This output is the value measurement at a 
distance of 200 mm from the objective lens 
surface on the optical pick-up block with 7 mm 
aperture.)
Number of channels
2
Frequency response
20 Hz    20,000 Hz +1/–2 dB
Wow and flutter
Below measurable limit
Bluetooth section
Communication System
Bluetooth Specification Version 3.0
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)
Modulation method
FHSS
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 
performance, operating system, application 
software, etc.
*
2
 Blue tooth standard profiles provide the 
specifications for Bluetooth communication 
between devices.
*
3
 Some oper ations may not be available 
depending on the device.
*
4
 Codec: Audio signal compression and 
conversion format
Radio section (RS70BTB)
Frequency range
DAB (Band-III): 174.928 MHz   239.200 MHz
FM: 87.5 MHz 
 108 MHz (50 kHz step)
Intermediate frequency
DAB (Band-III): 2.048 MHz
FM: 2.198 MHz
DAB (Band-III) frequency table (MHz)
Channel
 Frequency
 Channel
 Frequency
5A
174.928
10N
210.096
5B
176.640
10B
211.648
178.352
5C
10C
213.360
5D
180.064
10D
215.072
181.936
6A
11A
216.928
183.648
6B
217.088
11N
185.360
6C
11B
218.640
6D
220.352
11C
187.072
7A
188.928
11D
222.064
7B
190.640
12A
223.936
7C
192.352
12N
224.096
7D
194.064
12B
225.648
8A
195.936
12C
227.360
8B
197.648
12D
229.072
8C
199.360
230.784
13A
201.072
13B
8D
232.496
202.928
9A
234.208
13C
204.640
9B
13D
235.776
206.352
9C
237.488
13E
208.064
9D
13F
239.200
10A
209.936
Antenna
Telescopic antenna
Input
AUDIO IN
Stereo mini jack
 (USB) port
Type A, maximum current 500 mA, USB 2.0 Full 
Speed compatible
Output
 (headphones) stereo mini jack
For 16     32   impedance headphones
Supported audio formats
Supported bit rates
MP3 (MPEG 1 Audio Layer-3):
32 kbps 
 320 kbps, VBR
WMA:
48 kbps 
 192 kbps, VBR
Sampling frequencies
MP3 (MPEG 1 Audio Layer-3):
32/44.1/48 kHz
WMA:
32/44.1/48 kHz
General (RS70BTB)
Speaker
Full range, 8 cm dia., 3.2  , cone type (2)
Power output
2.3 W + 2.3 W (at 3.2  , 10% harmonic 
distortion)
Power requirements
230 V AC, 50 Hz (AC power supply)
9 V DC (6 R14 (size C) batteries)
Power consumption
AC 16 W
Battery Life*
1, 
*
2
Playback of CD
Approx. 7.5 hours
Playback of USB device
Approx. 7 hours (at 100 mA load)
Approx. 3.5 hours (at 500 mA load)
DAB reception
Approx. 9 hours
FM reception
Approx. 9 hours
Bluetooth
Approx. 10 hours
*
1
 Measur ed 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
Approx. 380 mm × 158 mm × 235 mm (W/H/D) 
(incl. projecting parts)
Mass
Approx. 3.3 kg (incl. batteries)
Supplied accessories
AC power cord (1)
Protecting sheet (1)
Design and specifications are subject to change 
without notice.
Radio section (RS70BT)
Uruguay, Paraguay, Peru, Chile and Bolivia 
models
FM: 87.5 MHz 
 108 MHz (100 kHz step)
87.5 MHz 
 108 MHz (50 kHz step)
AM: 530 kHz 
 1,610 kHz (10 kHz step)
531 kHz   1,602 kHz (9 kHz step)
Latin American models except for Uruguay, 
Paraguay, Peru, Chile, Bolivia and Brazil models
FM: 87.5 MHz 
 108 MHz (100 kHz step)
AM: 530 kHz 
 1,710 kHz (10 kHz step)
Intermediate frequency
FM: 128 kHz
AM: 45 kHz
Antennas
FM: Telescopic antenna
AM: Built-in ferrite bar antenna
General (RS70BT)
Speaker
Full range, 8 cm dia., 3.2  , cone type (2)
Power output
2.3 W + 2.3 W (at 3.2  , 10% harmonic 
distortion)
Power requirements
230 V AC, 50 Hz (AC power supply)
9 V DC (6 R14 (size C) batteries)
Latin American models except for Uruguay, 
Paraguay, Peru, Chile, Bolivia and Brazil models
120 V AC, 60 Hz (AC power supply)
9 V DC (6 R14 (size C) batteries)
Power consumption
AC 16 W
Battery Life*
1, 
*
2
Playback of CD
Approx. 7.5 hours
Playback of USB device
Approx. 7 hours (at 100 mA load)
Approx. 3.5 hours (at 500 mA load)
FM reception
Approx. 19 hours
Bluetooth
Approx. 10 hours
*
1
 Measur ed 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
Approx. 380 mm × 158 mm × 235 mm (W/H/D) 
(incl. projecting parts)
Mass
Approx. 3.3 kg (incl. batteries)
Frequency range
European, Taiwan, UAE and Thai models
FM: 87.5 MHz   108 MHz (50 kHz step)
AM: 531 kHz   1,602 kHz (9 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   1,610 kHz (10 kHz step)
European, Uruguay, Paraguay, Peru, Chile and 
Bolivia models
Brazil model
120 V   127 V AC/220 V   230 V AC,  
50/60 Hz, adjustable with voltage selector 
(AC power supply)
9 V DC (6 R14 (size C) batteries)
Other models
220 V   240 V AC, 50 Hz (AC power supply)
9 V DC (6 R14 (size C) batteries)
UAE model
240 V AC, 50 Hz (AC power supply)
9 V DC (6 R14 (size C) batteries)
Thai model
220 V AC, 50 Hz (AC power supply)
9 V DC (6 R14 (size C) batteries)
Products should be stored in the carton in the 
dark, dry, clean well ventilated premises isolated 
from places of storage of acids and alkalis.
Storage temperature: –20 °C to + 55 °C.
Storage humidity: 70% and less.
Operating temperature: 5 °C to 35 °C.
Operating humidity: 70% and less.
Russian model
Taiwan model
120 V AC, 60 Hz (AC power supply)
9 V DC (6 R14 (size C) batteries)
Model Name Using Similar Optical Pick-up Block
NEW
Optical Pick-up Block Name
EM101RNSZS or EM101VBZS
ZS-RS70BT/RS70BTB
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-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.
CAUTION
Use of controls or adjustments or performance of procedures 
other than those specifi ed herein may result in hazardous radia-
tion exposure.
ZS-RS70BT/RS70BTB
3
1. 
SERVICING  NOTES 
 .............................................  
4
2. DISASSEMBLY
2-1. Disassembly 
Flow 
...........................................................   6
2-2.  Cabinet (Upper) Block ....................................................   7
2-3.  Cabinet (Front) Block-1 ..................................................   8
2-4.  Cabinet (Front) Block-2 ..................................................   9
2-5. Spring 
(CD) 
.....................................................................  10
2-6. CD 
Block 
Assy 
................................................................  11
2-7. CD 
Board 
........................................................................  11
2-8.  Optical Pick-up Block (OP1) ..........................................   12
2-9.  RC-S711 (NFC Module) .................................................   12
2-10. JACK Board ....................................................................   13
2-11.  Bluetooth Module (BT1) ................................................   14
2-12.  Loudspeaker (7.7 cm) (L/R-ch) (SP101, SP201) ............   15
2-13.  TUNER Board (RS70BT)/DAB Board (RS70BTB) ......   16
2-14. MAIN Board ...................................................................   17
2-15.  Fuse (F982), POWER Board Block ................................   18
2-16.  POWER Board, Fuse (F981, F983) ................................   19
2-17. Power Transformer (T981), 
VOLTAGE SELECT Board ............................................   19
3. 
TEST  MODE 
 ............................................................   20
4. 
ELECTRICAL  CHECKS 
 ......................................   25
5. DIAGRAMS
5-1.  Block Diagram - CD/USB Section - ...............................   26
5-2.  Block Diagram - MAIN Section - ...................................   27
5-3. Block 
Diagram 
- PANEL/POWER SUPPLY Section - ............................   28
5-4.  Printed Wiring Board - CD Board - ................................   30
5-5.  Schematic Diagram - CD Board - ...................................   31
5-6.  Printed Wiring Board - TUNER Board (RS70BT) - .......   32
5-7.  Schematic Diagram - TUNER Board (RS70BT) - .........   33
5-8.  Printed Wiring Board - DAB Board (RS70BTB) - .........   34
5-9.  Schematic Diagram - DAB Board (RS70BTB) - ............   35
TABLE  OF  CONTENTS
5-10.  Printed Wiring Boards - MAIN Section (RS70BT) - .....   36
5-11. Schematic Diagram 
- MAIN Section (1/3) (RS70BT) - ..................................   37
5-12. Schematic Diagram 
- MAIN Section (2/3) (RS70BT) - ..................................   38
5-13. Schematic Diagram 
- MAIN Section (3/3) (RS70BT) - ..................................   39
5-14.  Printed Wiring Boards - MAIN Section (RS70BTB) - ...   40
5-15. Schematic Diagram 
- MAIN Section (1/3) (RS70BTB) - ...............................   41
5-16. Schematic Diagram 
- MAIN Section (2/3) (RS70BTB) - ...............................   42
5-17. Schematic Diagram 
- MAIN Section (3/3) (RS70BTB) - ...............................   43
5-18.  Printed Wiring Board - CONNECTOR Board - .............   44
5-19.  Schematic Diagram - CONNECTOR Board - ................   44
5-20.  Printed Wiring Boards - JACK/LED (NFC) Boards - ....   44
5-21.  Schematic Diagram - JACK/LED (NFC) Boards - ........   45
5-22.  Printed Wiring Boards - KEY Section - ..........................   46
5-23.  Schematic Diagram - KEY Section - ..............................   47
5-24.  Printed Wiring Boards - POWER Section - ....................   48
5-25.  Schematic Diagram - POWER Section - ........................   49
6. 
EXPLODED  VIEWS
6-1. Overall 
Section 
...............................................................  59
6-2.  Cabinet (Upper) Section .................................................   60
6-3.  CD Block Section ...........................................................   61
6-4.  Battery Lid Section .........................................................   62
6-5.  JACK Board Section .......................................................   63
6-6.  Cabinet (Front) Section ...................................................   64
6-7.  MAIN Board Section ......................................................   65
6-8.  Cabinet (Rear) Section ....................................................   66
7. 
ELECTRICAL  PARTS  LIST 
 ..............................   67
Accessories are given in the last of the electrical parts list.
Ver. 1.4
ZS-RS70BT/RS70BTB
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 replace with single. When this 
part is damaged, replace the complete mounted board.
TEST  DISCS
Use following TEST DISC (for CD) when this unit confi rms the 
operation and checks it.
Part No.
   
Description
3-702-101-01 DISC 
(YEDS-18), 
TEST
4-225-203-01 DISC 
(PATD-012), 
TEST
CHUCK  PLATE  JIG  ON  REPAIRING
On repairing CD section, playing a disc without the CD lid, use 
CHUCK PLATE JIG.
Note: The optical pick-up block has been changed in the midway of produc-
tion. It is not necessary for the optical pick-up block after change to use 
the CHUCK PLATE JIG.
Part No.
   
Description
X-4918-255-1 
CHUCK PLATE JIG
NEW/FORMER  DISCRIMINATION  OF  OPTICAL  PICK-UP  
BLOCK  OR  CD  LID
The optical pick-up block has been changed in the midway of pro-
duction. In addition, the CD lid has also been changed along with 
that, and the chucking plate has been deleted.
When replacing the optical pick-up block or CD lid, be sure to 
open the CD lid and check the presence or absence of the chucking 
plate on the bottom side of CD lid, and replace those after distin-
guishing the new/former.
With chucking plate 
: Former type
 
  (Former optical pick-up)
Without chucking plate : New type
 
  (New optical pick-up)
Open the CD lid.
LASER  DIODE  AND  FOCUS  SEARCH  OPERATION  
CHECK
During normal operation of the equipment, emission of the laser 
diode is prohibited unless the upper lid is closed while turning on 
the S801 (push switch type).
The following checking method for the laser diode is operable.
• Method
  Emission of the laser diode is visually checked.
  1.  Open the CD lid.
  2.  Press the [POWER] (Except AEP, East European, Russian 
and UK models)/[OPERATE] (AEP, East European, Russian 
and UK models) button to turn the power on.
  3.  Press the [CD] button to select CD function.
  4.  Push the S801 as shown in Fig.1.
Note: Do not push the detection lever strongly, or it may be bent or 
damaged.
  5.  Check the object lens for confi rming normal emission of the 
laser diode. If not emitting, there is a trouble in the automatic 
power control circuit or the optical pick-up.
   
In this operation, the object lens will move up and down 4 
times along with inward motion for the focus search.
S801
Fig. 1.  Method to push the S801
NOTES  ON  HANDLING  THE OPTICAL  PICK-UP  
BLOCK  OR  BASE  UNIT
The laser diode in the optical pick-up block may suffer electro-
static 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.
Ver. 1.4
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