DOWNLOAD Sony MHC-V3 / MHC-V4D Service Manual ↓ Size: 8 MB | Pages: 100 in PDF or view online for FREE

Model
MHC-V3 MHC-V4D
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100
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8 MB
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Service Manual
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Device
Audio
File
mhc-v3-mhc-v4d.pdf
Date

Sony MHC-V3 / MHC-V4D Service Manual ▷ View online

SERVICE MANUAL
Sony Corporation
Published by Sony EMCS (Malaysia) PG Tec
MHC-V3/V4D
HOME AUDIO SYSTEM
9-890-660-06
2015F80-1
© 
2015.06
E Model
MHC-V3/V4D
Argentina Model
Malaysia Model
Mexican Model
Saudi Arabia Model
South African Model 
Thai Model
MHC-V4D 
Australian Model
MHC-V3
Ver. 1.5  2015.06
SPECIFICATIONS
CD/DVD Section
Model Name Using Similar Mechanism
HCD-GPX555
CD Mechanism Type
CDM90-DVBU204//M
Optical Pick-up Name
CMS-S76RFS7G
– Continued on next page –
Amplifi er section
The following are measured at
 E51 
models:
 
AC 220 V – 240 V, 50 Hz
 Other 
models:
 
AC 120 V – 240 V, 50/60 Hz
Power output (rated)
 
Left/Right Channel: 120 W + 120 W
 
(at 2 ohms, 1 kHz, 1% THD)
RMS output power (reference)
 
Left/Right Channel: 180 W + 180 W
 
(per channel at 2 ohms, 1 kHz)
 
Subwoofer: 360 W (at 4 ohms, 100 Hz)
Inputs
AUDIO IN L/R
 
Voltage 2 V, impedance 47 kilohms
 (USB) port
 Type 
A
MIC 1 (V4D), MIC 2 (V4D)
 
Sensitivity 1 mV, impedance
 10 
kilohms
Outputs (V4D)
VIDEO OUT
 
Max. output level 1 Vp-p, unbalanced,
 
Sync. negative load impedance
 75 
ohms
USB section
Supported bit rate
 WMA:
 
48 kbps – 192 kbps, VBR, CBR
 AAC:
 
48 kbps – 320 kbps, VBR, CBR
Sampling frequencies
 
WMA: 44.1 kHz
 
AAC: 44.1 kHz
Supported USB device
 
Mass Storage Class
Maximum current
 500 
mA
Disc/USB section
Supported bit rate
 MPEG1 
Layer-3:
 
32 kbps – 320 kbps, VBR
 MPEG2 
Layer-3:
 
8 kbps – 160 kbps, VBR
 MPEG1 
Layer-2:
 
32 kbps – 384 kbps, VBR
Sampling frequencies
 MPEG1 
Layer-3:
 
32 kHz/44.1 kHz/48 kHz
 MPEG2 
Layer-3:
 
16 kHz/22.05 kHz/24 kHz
 MPEG1 
Layer-2:
 
32 kHz/44.1 kHz/48 kHz
Xvid (V4D)
 
Video codec: Xvid video
 
Bit rate: 4.854 Mbps (MAX)
 Resolution/Frame 
rate:
 
720 × 480 30 fps
 
720 × 576 25 fps
 
Audio codec: MP3
MPEG4 (V4D)
 
File format: MP4 File Format
 Video 
codec:
 
MPEG4 Simple Profile
 
(AVC is not compatible.)
 
Bit rate: 4 Mbps
 Resolution/Frame 
rate:
 
720 × 480 30 fps
 
720 × 576 25 fps
 Audio 
codec: 
AAC-LC
 
(HE-AAC is not compatible.)
 
DRM: Not compatible
Disc player section
System
 
Compact disc and digital audio system 
 (V3)
 
Compact disc and digital audio and 
 
video system (V4D)
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.
Frequency response
 
20 Hz – 20 kHz
Signal-to-noise ratio (V3)
 
More than 90 dB
Dynamic range (V3)
 
More than 88 dB
Video color system format (V4D)
 
Latin American model: NTSC
 
Other models: NTSC and PAL
FM tuner section
System
 
PLL quartz-locked digital synthesizer
Tuning range
 
87.5 MHz – 108.0 MHz (50 kHz step)
Antenna
 
FM wire antenna
Bluetooth section
Communication system
 
Bluetooth Standard version 3.1
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 (Freq Hopping Spread Spectrum)
Compatible Bluetooth profiles
2)
 
A2DP (Advanced Audio Distribution 
 Profile)
 
AVRCP 1.3 (Audio Video Remote 
 Control 
Profile)
 
SPP (Serial Port Profile)
Supported codecs
 
SBC (Sub Band Codec)
 
AAC (Advanced Audio Coding)
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.
Speaker section
Speaker system
 
3-way, Sound Pressure Horn
Speaker unit
 
Tweeter L/R: 40 mm, cone type
 
Mid L/R: 80 mm, cone type
 
Woofer: 200 mm, cone type
Rated impedance
 
Tweeter L/R: 2 ohms
 
Mid L/R: 2 ohms
 
Woofer: 4 ohms
General
Power requirements
 E51 
models:
 
AC 220 V – 240 V, 50 Hz
 Other 
models:
 
AC 120 V – 240 V, 50/60 Hz
Power consumption
 120 
W
Dimensions (w/h/d) (Approx.)
 
280 mm × 786 mm × 280 mm (V3)
 
280 mm × 792 mm × 280 mm (V4D)
Mass (Approx.)
 13.0 
kg
Supplied accessories
 
Remote control (1)
 
R6 (Size AA) batteries (2)
 
FM wire antenna (1)
 
AC power cord (1)
Design and specifications are subject to 
change without notice.
Photo: MHC-V3
MHC-V3/V4D
2
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.
SAFETY  CHECK-OUT
After correcting the original service problem, perform the following 
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 2V 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.
License and Trademark Notice
•  
 is a trademark of DVD Format/Logo Licensing Corporation.
•  
“DVD+RW”, “DVD-RW”, “DVD+R”, “DVD-R”, “DVD VIDEO”, and 
the “CD” logos are trademarks.
•   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 is protected by certain intellectual property rights of 
Microsoft Corporation. Use or distribution of such technology outside 
of this product is prohibited without a license from Microsoft or an 
authorized Microsoft subsidiary.
•   “WALKMAN” and “WALKMAN” logo are registered trademarks of 
Sony Corporation.
•  This system incorporates Dolby* Digital.
  
Manufactured under license from Dolby Laboratories.
   
Dolby and the double-D symbol are trademarks of Dolby 
Laboratories.
•  
The Bluetooth
®
 word mark and logos are registered trademarks 
owned by 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.
•   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.
•  Google Play™ is a trademark of Google Inc.
•   iPhone and iPod touch are trademarks of Apple Inc., registered in the 
U.S. and other countries. App Store is a service mark of Apple Inc.
•   “Made for iPod” and “Made for iPhone” mean that an electronic 
accessory has been designed to connect specifically to iPod or 
iPhone, respectively, and has been certified by the developer to 
meet Apple performance standards. Apple is not responsible for 
the operation of this device or its compliance with safety and 
regulatory standards. Please note that the use of this accessory 
with iPod or iPhone may affect wireless performance.
•   THIS PRODUCT IS LICENSED UNDER THE MPEG-4 VISUAL 
PATENT PORTFOLIO LICENSE FOR THE PERSONAL AND 
NON-COMMERCIAL USE OF A CONSUMER FOR
  (i)  ENCODING VIDEO IN COMPLIANCE WITH THE MPEG-4 
VISUAL STANDARD (“MPEG-4 VIDEO”)
 AND/OR
  (ii) 
 
DECODING MPEG-4 VIDEO THAT WAS ENCODED BY 
A CONSUMER ENGAGED IN A PERSONAL AND NON-
COMMERCIAL ACTIVITY AND/OR WAS OBTAINED FROM 
A VIDEO PROVIDER LICENSED TO PROVIDE MPEG-4 
VIDEO.
   NO LICENSE IS GRANTED OR SHALL BE IMPLIED FOR ANY 
OTHER USE. ADDITIONAL INFORMATION INCLUDING THAT 
RELATING TO PROMOTIONAL, INTERNAL AND COMMER-
CIAL USES AND LICENSING MAY BE OBTAINED FROM MPEG 
LA, L.L.C.
 HTTP://WWW.MPEGLA.COM
•   All other trademarks are trademarks of their respective owners.
•   In this manual, ™ and ® marks are not specified.
 Abbreviation
 AR 
Argentina 
model
 AUS  : 
Australian 
model
  E2 
: 120 V AC area in E model
 E4 
African 
model
  E51 
: Chilean and Peruvian models
 EA 
Saudi 
Arabia 
model
 MX 
Mexican 
model
 MY 
Malaysia 
model
 SAF  : 
South 
African 
model
 TH 
Thai 
model
Ver. 1.5
MHC-V3/V4D
3
1. 
SERVICING  NOTES
  .............................................   4
2. DISASSEMBLY
2-1.   Disassembly Flow ...........................................................   9
2-2.   Side L, R Panel ...............................................................   10
2-3.   Top Panel Block ..............................................................   10
2-4.   Loading Panel Block .......................................................   11
2-5.   CDM Block .....................................................................   12
2-6.   Back Panel Block ............................................................   13
2-7.   TUNER Board ................................................................   14
2-8.   ARAGON Board .............................................................   15
2-9.   DAMP Board ..................................................................   16
2-10.  Chassis Block ..................................................................   17
2-11.  Bluetooth Module, SMPS Board ....................................   18
2-12.  Front Panel Block ...........................................................   19
2-13.  RC-S801/A5 (WW), SPEAKER LED Board,
IR Board, Front Panel Assy ............................................   20
2-14.  Loudspeaker (20 cm) (Woofer) (SP5) .............................   21
2-15.  Loudspeaker (8 cm) (Mid: L-ch) (SP1),
Loudspeaker (8 cm) (Mid: R-ch) (SP3) ..........................   22
2-16.  Service, Optical Device(7G), Wire (Flat Type) ..............   23
2-17.  Volume Knob Block ........................................................   24
3. 
TEST  MODE 
 ............................................................   25
4. 
ELECTRICAL  CHECK 
 .........................................   31
5. TROUBLESHOOTING 
 ..........................................   33
6. DIAGRAMS
6-1.  Block Diagram - CD/USB Section - ...............................   39
6-2.  Block Diagram - MAIN Section - ...................................   40
6-3.  Block Diagram - AMP Section - .....................................   41
6-4. Block 
Diagram 
 
- PANEL/POWER SUPPLY Section - ............................   42
6-5. Printed 
Wiring 
Board 
 
- ARAGON Board (Component Side) - ..........................   44
6-6.  Printed Wiring Board  
 
- ARAGON Board (Conductor Side) - ...........................   45
6-7.  Schematic Diagram - ARAGON Board (1/6) - ...............   46
6-8.  Schematic Diagram - ARAGON Board (2/6) - ...............   47
6-9.  Schematic Diagram - ARAGON Board (3/6) - ...............   48
6-10.  Schematic Diagram - ARAGON Board (4/6) - ...............   49
6-11.  Schematic Diagram - ARAGON Board (5/6) - ...............   50
6-12.  Schematic Diagram - ARAGON Board (6/6) - ...............   51
6-13.  Printed Wiring Board - PANEL Board - .........................   52
6-14.  Schematic Diagram - PANEL Board - ............................   53
6-15.  Printed Wiring Board -
 
DAMP Board - ..........................   54
6-16.  Schematic Diagram -
 
DAMP Board - .............................   55
6-17.  Printed Wiring Board - TUNER Board - ........................   56
6-18.  Schematic Diagram -
 
TUNER Board - ...........................   57
TABLE  OF  CONTENTS
6-19.  Printed Wiring Board -
 
USB Board - ..............................   58
6-20.  Schematic Diagram -
 
USB Board - ................................   58
6-21.  Printed Wiring Board -
 
MIC Board (V4D) - ..................   58
6-22.  Schematic Diagram -
 
MIC Board (V4D) - .....................   59
6-23.  Printed Wiring Board -
 
IR Board - .................................   60
6-24.  Schematic Diagram -
 
IR Board - ....................................   60
6-25.  Printed Wiring Board -
 
SPEAKER LED Board - ...........   60
6-26.  Schematic Diagram -
 
SPEAKER LED Board - ..............   60
7. 
EXPLODED  VIEWS
7-1.  Side Panel Section ..........................................................   76
7-2.  Loading Panel Section ....................................................   77
7-3.  Back Panel Section .........................................................   78
7-4.  ARAGON Board Section ................................................   79
7-5. Chassis 
Section 
...............................................................  80
7-6.  Front Panel Section .........................................................   81
7-7.  Speaker Cabinet Section .................................................   82
7-8.  Top Panel Section ...........................................................   83
7-9.  CDM Block Section ........................................................   84
7-10.  CD Mechanism Section
(CDM90-DVBU204//M) ................................................   85
8. 
ELECTRICAL  PARTS  LIST
  ..............................   86
Accessories are given in the last of the electrical parts list.
Ver. 1.5
MHC-V3/V4D
4
SECTION  1
SERVICING  NOTES
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.
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the 
leadfree 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.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specifi ed herein may result in hazardous radiation
exposure.
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK 
OR BASE UNIT
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 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.
MODEL IDENTIFICATION
This appliance is classifi ed as a 
CLASS 1 LASER product by 
IEC60825-1:2007. This marking 
is located on the rear exterior.
Model
Part No.
V3: E2
4-536-755-0[]
V3: AUS
4-536-756-0[]
V3: E51
4-536-759-0[]
V4D: E2
4-539-781-0[]
V4D: TH
4-539-782-0[]
V4D: E4
4-539-783-0[]
V4D: EA
4-539-784-0[]
V4D: SAF
4-544-279-0[]
V4D: MY
4-544-280-0[]
V4D: E51
4-566-622-0[]
V4D: AR
4-566-623-0[]
V4D: MX
4-566-624-0[]
• Abbreviation
 AR  : Argentina 
model
 AUS  : Australian 
model
  E2 
: 120 V AC area in E model
 E4 
: African 
model
  E51 
: Chilean and Peruvian models
 EA 
: Saudi 
Arabia 
model
 MX  : Mexican 
model
 MY  : Malaysia 
model
 SAF  : South 
African 
model
 TH 
: Thai 
model
PLAYABLE  DISCS
• AUDIO 
CD
• CD-R/CD-RW/DVD-R/DVD-RW
 – 
audio 
data
 – 
MP3 
fi les that conforms to ISO9660 Level 1/Level 2, or 
Joliet (expansion format).
Notes
•  MP3 (MPEG 1 Audio Layer-3) is a standard format defi ned 
by ISO (International Organization for Standardization) which 
compresses audio data. MP3 fi les must be in MPEG 1 Audio 
Layer-3 format.
•  The system can only play back MP3 fi les that have a fi le 
extension of “.mp3”.
• JIG
 
When disassembling the set, use the following jig (for front 
panel removal).
 
Part No.: J-2501-238-A JIG FOR SPEAKER REMOVAL
– Back Panel –
PART No.
Destination code
SISTEMA DE AUDIO PARA EL HOGAR
AC 220-240V ~ 50Hz 120W
N
O
 SERIE 0000063
4-536-759-01 E51
HECHO EN MALASIA
CERTIFICADO N
O
 X-XXX-XX-XXXX
R
03/2014
MODELO MHC-V3
Ver. 1.5
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Sony MHC-V3 / MHC-V4D Service Manual ▷ Download

  • DOWNLOAD Sony MHC-V3 / MHC-V4D Service Manual ↓ Size: 8 MB | Pages: 100 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony MHC-V3 / MHC-V4D in PDF for free, which will help you to disassemble, recover, fix and repair Sony MHC-V3 / MHC-V4D Audio. Information contained in Sony MHC-V3 / MHC-V4D 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.