DOWNLOAD Sony HCD-WZ88D / MHC-WZ88D Service Manual ↓ Size: 9.39 MB | Pages: 70 in PDF or view online for FREE

Model
HCD-WZ88D MHC-WZ88D
Pages
70
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9.39 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
hcd-wz88d-mhc-wz88d.pdf
Date

Sony HCD-WZ88D / MHC-WZ88D Service Manual ▷ View online

SERVICE MANUAL
Sony Corporation
Home Audio Division
Published by Sony Engineering Corporation
E Model
Australian Model
CD/DVD PLAYER TUNER
9-879-693-02
2005K16-1
© 2005.11
Ver. 1.1  2005.11
SPECIFICATIONS
HCD-WZ88D
HCD-WZ88D is the Tuner, and the CD/DVD
player section in MHC-WZ88D.
DVD
Model Name Using Similar Mechanism
NEW
Section
DVD Mechanism Type
CDM85-DVBU102
Optical Pick-up Name
KHM-310CAA/C2NP
Disc player section 
System
Compact disc and digital 
audio and video system
Laser
Semiconductor laser 
(DVD: 
λ = 650 nm,
CD: 
λ = 790 nm)
Emission duration:
continuous
Frequency response
DVD (PCM 48 kHz):
2 Hz – 22 kHz (
±1dB)
CD: 2 Hz – 20 kHz 
(
±0.5 dB)
Video color system format
Latin American models
NTSC
Other models
NTSC, PAL
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range
87.5 – 108.0 MHz
Antenna
FM lead antenna
Antenna terminals
75 ohms unbalanced
Intermediate frequency
10.7 MHz
AM tuner section
Tuning range
Latin American model:
530 – 1,710 kHz 
(with the tuning interval 
set at 10 kHz)
531 – 1,710 kHz 
(with the tuning interval 
set at 9 kHz)
 Saudi Arabian model:
531 – 1,602 kHz 
(with the tuning interval 
set at 9 kHz) 
Other models:
531 – 1,602 kHz 
(with the tuning interval 
set at 9 kHz)
530 – 1,710 kHz 
(with the tuning interval 
set at 10 kHz)
Antenna
AM loop antenna
Antenna terminals
External antenna terminal
Intermediate frequency
450 kHz 
General
Power requirements
Argentina models:
220 V AC, 50/60 Hz
Australian model:
230 – 240 V AC, 50/60 Hz
Saudi Arabian model:
120 – 127 V, 220 V or 
230 – 240 V AC, 50/60 Hz
Adjustable with voltage 
selector
Thai model:
220 V AC, 50/60 Hz
Other models:
120 V, 220 V or 
230 – 240 V AC, 50/60 Hz
Adjustable with voltage 
selector
Power consumption
225 watts
Dimensions (w/h/d)
DVD player/Tuner:
Approx. 255 
× 134 ×
343 mm
Mass
DVD player/Tuner:
Approx. 3.0 kg
Supplied accessories:
Remote Commander (1)
Batteries (2)   
AM loop antenna (1)
FM lead antenna (1) 
Speaker pads (20)
Speaker cords (5)
Video cord (1)
Design and specifications are subject to change 
without notice.
This system incorporates with Dolby* Digital and Dolby Pro Logic
(II) adaptive matrix surround decoder and the DTS** Digital
Surround System.
*
Manufactured under license from Dolby Laboratories.
“Dolby,” “Pro Logic,” and the double-D symbol are
trademarks of Dolby Laboratories.
** Manufactured under license from Digital Theater Systems, Inc.
“DTS” and “DTS Digital Surround” are trademarks of
Digital Theater Systems, Inc.
2
HCD-WZ88D
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.
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.
TABLE OF CONTENTS
1.
SERVICING NOTES
................................................
3
2.
GENERAL
...................................................................
6
3.
DISASSEMBLY
3-2.
Case ................................................................................. 10
3-3.
Front Panel Assy .............................................................. 10
3-4.
VR Board, FL Board, FUNCTION SW Board ............... 11
3-5.
4CH-VOL Board, VIDEO Board .................................... 11
3-6.
MAIN Board, REGULATOR Board, MIC Board ........... 12
3-7.
DVD Mechanism (CDM85-DVBU102) .......................... 12
3-8.
DMB10 Board ................................................................. 13
3-9
Tray .................................................................................. 13
3-10. MS-203 Board ................................................................. 14
3-11. Base Unit ......................................................................... 15
3-12 Optical Pick-up (KHM-310CAA/C2NP) ........................ 15
4.
TEST MODE
............................................................... 16
5.
DIAGRAMS
5-1.
Block Diagrams  – RF/SERVO Section – ....................... 22
– VIDEO Section – .......................................................... 23
– AUDIO Section – .......................................................... 24
– MAIN Section – ........................................................... 25
5-2.
Printed Wiring Board – DMB10 Section (Side A) – ....... 26
5-3.
Printed Wiring Board – DMB10 Section (Side B) – ....... 27
5-4.
Schematic Diagram  – DMB10 Section (1/4) – .............. 28
5-5.
Schematic Diagram  – DMB10 Section (2/4) – .............. 29
5-6.
Schematic Diagram  – DMB10 Section (3/4) – .............. 30
5-7.
Schematic Diagram  – DMB10 Section (4/4) – .............. 31
5-8.
Printed Wiring Board – MAIN Section – ........................ 32
5-9.
Schematic Diagram  – MAIN Section (1/2) – ................. 33
5-10. Schematic Diagram  – MAIN Section (2/2) – ................. 34
5-11. Printed Wiring Boards – FL/FUNCTION SW Section – 35
5-12. Schematic Diagram  – FL/FUNCTION SW Section  – .. 36
5-13. Printed Wiring Board – REGULATOR Section – ........... 37
5-14. Schematic Diagram  – REGULATOR Section – ............. 38
5-15. Printed Wiring Board – 4-CH-VOL Section – ................ 39
5-16. Schematic Diagram  – 4-CH-VOL Section – .................. 40
5-17. Printed Wiring Boards
– VIDEO/MIC/VR/MS-203 Section – ............................ 41
5-18. Schematic Diagram
– VIDEO/MIC/VR/MS-203 Section – ............................ 42
6.
EXPLODED VIEWS
6-1.
Front Panel Section ......................................................... 54
6-2.
Chassis Section ................................................................ 55
6-3.
Dvd Mechanism Section (CDM85B-DVBU102) ............ 56
7.
ELECTRICAL PARTS LIST
.................................. 58
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.
3
HCD-WZ88D
SECTION 1
SERVICING NOTES
MODEL  IDENTIFICATION
– Rear Panel –
• Abbreviation
AR
: Argentine model.
AUS
: Australian model.
E3
: 240 V AC area in E model.
E12
: 220-240 V AC area in E model.
E13
: 220-230 V AC area in E model.
E15
: 220-240 V AC area in E model.
E51
: Chilean and peruvian models.
EA
: Saudi Arabia model.
PL
: Phillippines model.
SP
: Singapore and Malaysia models.
TH
: Thai model.
PARTS No.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure.
Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.
This appliance is classified as
a CLASS 1 LASER product.
The CLASS 1 LASER
PRODUCT MARKING is
located on the rear exterior.
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 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.
The following caution label is located inside the apparatus.
(When letters/numbers appear in the 
display)
When the self-diagnosis function is activated to 
prevent the system from malfunctioning, a 
5-character service number (e.g. C 13 50) with a 
combination of a letter and 4 digits appears in 
the on-screen display and the front panel 
display. In this case, check the following table.
Self-diagnosis function
First 3 
characters of 
the service 
number
Cause and corrective action
C 13
The disc is dirty.
t Clean the disc with a soft cloth 
C 31
The disc is not inserted correctly.
t Restart the system, then 
re-insert the disc correctly.
E XX
(XX is a number)
To prevent a malfunction, the 
system has performed the self-
diagnosis function.
t Contact your nearest Sony 
dealer or local authorized 
Sony service facility and give 
the 5-character service 
number.
Example: E 61 10
Model
Part No.
SP model
2-580-702-0
[]
E12, E13 models
2-580-702-1
[]
E15, E3 models
2-580-702-3
[]
PL model
2-580-702-4
[]
EA model
2-580-702-5
[]
AUS model
2-580-702-6
[]
TH model
2-580-702-7
[]
E51 model
2-580-702-8
[]
AR model
2-580-702-9
[]
Note:
HCD-WZ88D does not operate independently.
DXA-WZ88D is required to operate this.
In this case of a service, please connect DXA-WZ88D.
Note on DMB10 board replacement
New part of EEP ROM (IC103) on the DMB10 board cannot be
used. Therefore, if the mounted DMB10 board  (A-1122-695-A,
etc. ) is replaced, exchange new EEP ROM (IC103) with that used
before the replacement.
4
HCD-WZ88D
•  DMB10 board service position
CN101
CN801
MAIN BOARD
4CH-VOL BOARD
VIDEO BOARD
CN303
Remove the DMB10 board once.
Then create the service position.
Extension cable :
J-2501-244-A
(1mm / 21pin / L300)
DMB10 board
DMB10 board
Extension cable :
J-2501-102-A
(1mm / 13pin / L300)
In such a case, the
extension cables
became necessary.
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Sony HCD-WZ88D / MHC-WZ88D Service Manual ▷ Download

  • DOWNLOAD Sony HCD-WZ88D / MHC-WZ88D Service Manual ↓ Size: 9.39 MB | Pages: 70 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony HCD-WZ88D / MHC-WZ88D in PDF for free, which will help you to disassemble, recover, fix and repair Sony HCD-WZ88D / MHC-WZ88D Audio. Information contained in Sony HCD-WZ88D / MHC-WZ88D 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.