DOWNLOAD Sony ZS-YN7L Service Manual ↓ Size: 3.25 MB | Pages: 58 in PDF or view online for FREE

Model
ZS-YN7L
Pages
58
Size
3.25 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
zs-yn7l.pdf
Date

Sony ZS-YN7L Service Manual ▷ View online

SERVICE MANUAL
PERSONAL AUDIO SYSTEM
AEP Model
UK Model
ZS-YN7L
9-877-961-02
2007G05-1
© 2007.07
Sony Corporation
Personal Audio Division
Published by Sony Techno Create Corporation
Model Name Using Similar Mechanism
ZS-X1
Optical Pick-up Block Name
KSM-213RAP
Optical Pick-up Name
KSS-213R
SPECIFICATIONS
US and foreign patents licensed from Dolby Laboratories.
CD player section
System
Compact disc digital audio system
Laser diode properties
Material: GaAlAs
Wave length: 780 nm
Emission duration: Continuous
Laser output: Less than 44.6 
µW
(This output is the value measured at a distance of about
200 mm from the objective lens surface on the optical
pick-up block with 7 mm aperture.)
Spindle speed
400 r/min (rpm) to 1 000 r/min (rpm) (CLV)
Number of channels
2
Frequency response
20 - 20 000 Hz +0/–1 dB
Wow and flutter
Below measurable limit
Radio section
Frequency range
FM
87.5 - 108 MHz
MW
531 - 1 611 kHz (9 kHz step)
530 - 1 610 kHz (10 kHz step)
LW
153 - 279 kHz
IF
FM: 10.7 MHz
AM/MW/LW: 450 kHz
Aerials
FM: Telescopic aerial
AM/MW/LW: Built-in ferrite bar aerial
General
Speaker
Full range: 8 cm (3 
1
 in.) dia., 3.2 
Ω, cone type (2)
Input
LINE IN jack (stereo minijack):
Minimum input level 330 mV
Outputs
Headphones jack (stereo minijack):
For 16 - 64 
Ω impedance headphones
OPTICAL DIGITAL OUT (CD) (optical output
connector): Wavelength 630 - 690 nm
Maximum power output
4.6 W
Power requirements
For player: 230 V AC, 50 Hz
9 V DC, 6 R14 (size C) batteries
For remote control:
3 V DC, 2 R03 (size AAA) batteries
Power consumption
16 W
Battery life
For player:
CD playback
Sony R14P: approx. 1.5 h
Sony alkaline LR14: approx. 8 h
Radio reception
Sony R14P: approx. 6 h
Sony alkaline LR14: approx. 20 h
Dimensions
Approx. 455 
× 214 × 180 mm  (w/h/d)
(18 
× 
 
1
2
 
 
×
 
1
8   
inches)
 
(incl. projecting parts)
Mass
Approx. 3.5 kg (7 lb. 11 oz) (incl. batteries)
Supplied accessories
Mains lead (1)
Remote control (1)
CD-ROM (SonicStage) (1)
SonicStage Installation/Operating Guide (1)
Design and specifications are subject to change without
notice.
Ver. 1.1  2007.07
ZS-YN7L
2
TABLE  OF  CONTENTS
1.
SERVICING NOTES
................................................
3
2.
GENERAL
...................................................................
5
3.
DISASSEMBLY
3-1.
Disassembly Flow ...........................................................
7
3-2.
Cabinet Rear Assy ...........................................................
8
3-3.
Cabinet (Upper) ...............................................................
8
3-4.
Shassis Section ................................................................
9
3-5.
CD Block Section ............................................................
9
3-6.
LCD Board ...................................................................... 10
4.
TEST  MODE
.............................................................. 11
5.
ELECTRICAL  ADJUSTMENTS
TUNER Section ............................................................... 12
CD Section ...................................................................... 14
6.
DIAGRAMS
6-1.
Block Diagram  – CD SERVO Section – ........................ 16
6-2.
Block Diagram  – TUNER Section – .............................. 17
6-3.
Block Diagram  – MAIN Section – ................................. 18
6-4.
Printed Wiring Board  – CD Board – .............................. 20
6-5.
Schematic Diagram  – CD Board – ................................. 21
6-6.
Printed Wiring Board  – TU Board – ............................... 22
6-7.
Schematic Diagram  – TU Board – ................................. 23
6-8.
Printed Wiring Board
– MAIN Board (Component Side) – ............................... 24
6-9.
Printed Wiring Board
– MAIN Board (Conductor Side) – ................................. 25
6-10. Schematic Diagram  – MAIN Board (1/2) – ................... 26
6-11. Schematic Diagram  – MAIN Board (2/2) – ................... 27
6-12. Printed Wiring Boards  – KEY Section – ........................ 28
6-13. Printed Wiring Boards  – POWER Section – .................. 29
6-14. Schematic Diagram  – KEY/POWER Section – ............. 30
7.
EXPLODED  VIEWS
7-1.
Cabinet Rear Section ....................................................... 42
7-2.
Cabinet Front Section ...................................................... 43
7-3.
Chassis Section ................................................................ 44
7-4.
LID CD Section ............................................................... 45
7-5.
Optical Pick-up Block Section (KSM-213RAP) ............. 46
8.
ELECTRICAL  PARTS  LIST
................................ 47
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be
damaged by heat.
Flexible Circuit Board Repairing
• Keep the temperature of the 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.
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.
About CD-Rs/CD-RWs
This player can play CD-Rs/CD-RWs
recorded in the CD-DA format*, but
playback capability may vary depending on
the quality of the disc and the condition of
the recording device.
* CD-DA is the abbreviation for Compact
Disc Digital Audio. It is a recording
standard used for Audio CDs.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure.
3
ZS-YN7L
SECTION  1
SERVICING  NOTES
The laser diode in the optical pick-up block may suffer electrostatic
break-down because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The 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 pick-
up 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 viscou-s (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.
NOTES  ON  HANDLING  THE  OPTICAL  PICK-UP
BLOCK  OR  BASE  UNIT
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 S421. (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 upper lid.
2. Push the S421 as shown in Fig.1.
Note:
Do not push the detection lever strongly, or it may be bent or damaged.
3. Press the
u
button.
4. Check the object lens for confirming 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 2
times along with inward motion for the focus search.
Fig.1 Method to push the S421
2
1
S421
4
ZS-YN7L
MAIN board
H/P board
TU board
HARNESS  SETTING
Page of 58
Display

Sony ZS-YN7L Service Manual ▷ Download

  • DOWNLOAD Sony ZS-YN7L Service Manual ↓ Size: 3.25 MB | Pages: 58 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony ZS-YN7L in PDF for free, which will help you to disassemble, recover, fix and repair Sony ZS-YN7L Audio. Information contained in Sony ZS-YN7L Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.