Read Sony DAV-HDX678WF / DAV-HDX975WF / HCD-HDX678WF / HCD-HDX975WF Service Manual online
SERVICE MANUAL
Sony Corporation
Audio Business Group
Published by Sony Techno Create Corporation
SPECIFICATIONS
DVD RECEIVER
9-887-988-02
2008E05-1
©
2008.05
US Model
HCD-HDX678WF
Canadian Model
HCD-HDX975WF
Ver. 1.1 2008.05
Model Name Using Similar Mechanism
HCD-HDX500
DVD Mechanism Type
CDM81C-DVBU101
Optical Pick-up Block Name
KHM-310CAB or
KHM-313CAB
KHM-313CAB
• HCD-HDX678WF is the amplifier section, super audio CD/DVD sys-
tem, tuner section and video section in DAV-HDX678WF.
• HCD-HDX975WF is the amplifier section, super audio CD/DVD sys-
tem, tuner section and video section in DAV-HDX975WF.
HCD-HDX678WF/
HDX975WF
Photo: HCD-HDX678WF
– Continued on next page –
This product incorporates copyright protection technology that is
protected by U.S. patents and other intellectual property rights.
Use of this copyright protection technology must be authorized by
Macrovision, and is intended for home and other limited viewing
uses only unless otherwise authorized by Macrovision. Reverse
engineering or disassembly is prohibited.
protected by U.S. patents and other intellectual property rights.
Use of this copyright protection technology must be authorized by
Macrovision, and is intended for home and other limited viewing
uses only unless otherwise authorized by Macrovision. Reverse
engineering or disassembly is prohibited.
This system incorporates with Dolby* Digital and Dolby Pro Log-
ic (II) adaptive matrix surround decoder and the DTS** Digital
Surround System.
ic (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 trade-
marks of Dolby Laboratories.
marks of Dolby Laboratories.
** Manufactured under license from DTS, Inc.
“DTS” and “DTS Digital Surround” are registered trademarks
of DTS, Inc.
of DTS, Inc.
This system incorporates High-Defi nition Multimedia Interface
(HDMITM) technology.
HDMI, the HDMI logo and High-Defi nition Multimedia Interface
are trademarks or registered trademarks of HDMI Licensing LLC.
(HDMITM) technology.
HDMI, the HDMI logo and High-Defi nition Multimedia Interface
are trademarks or registered trademarks of HDMI Licensing LLC.
“BRAVIA” and
are trademarks of Sony Corpora-
tion.
“S-AIR” and its logo are trademarks of Sony Corporation.
AUDIO POWER SPECIFICATIONS
for the US model
POWER OUTPUT AND TOTAL HARMONIC DISTORTION:
for the US model
POWER OUTPUT AND TOTAL HARMONIC DISTORTION:
With 3 ohms loads, both channels
driven, from 150 - 20,000 Hz; rated
84 watts per channel minimum
driven, from 150 - 20,000 Hz; rated
84 watts per channel minimum
RMS power, with no more than
0.7% total harmonic distortion from
250 milli watts to rated output.
0.7% total harmonic distortion from
250 milli watts to rated output.
Amplifi er Section
US models:
Surround mode (reference) RMS output power
US models:
Surround mode (reference) RMS output power
FL/FR/C*: 143 watts (per channel
at 3 ohms, 1 kHz, 10% THD)
at 3 ohms, 1 kHz, 10% THD)
Subwoofer*: 285 watts (at 1.5
ohms, 80 Hz, 10% THD)
ohms, 80 Hz, 10% THD)
Other models:
Stereo mode (rated)
Stereo mode (rated)
108 W + 108 W (at 3 ohms, 1 kHz,
1% THD)
1% THD)
Surround mode (reference) RMS output power
FL/FR/C*: 143 watts (per channel
at 3 ohms, 1 kHz, 10% THD)
at 3 ohms, 1 kHz, 10% THD)
Subwoofer*: 285 watts (at 1.5
ohms, 80 Hz, 10% THD)
ohms, 80 Hz, 10% THD)
* Depending on the decoding mode settings and the source,
there may be no sound output.
Inputs (Analog)
TV (AUDIO IN)
TV (AUDIO IN)
Sensitivity: 450/250 mV
SAT/CABLE (AUDIO IN) Sensitivity: 450/250 mV
AUDIO IN
AUDIO IN
Sensitivity: 250/125 mV
Inputs (Digital)
TV (COAXIAL IN/OPTICAL IN)
TV (COAXIAL IN/OPTICAL IN)
Impedance: 75 ohms/-
Outputs (Analog)
Phones
Phones
Accepts low- and highimpedance
headphones.
headphones.
Super Audio CD/DVD System
Laser Semiconductor
Laser Semiconductor
laser
(Super
Audio
CD/DVD:
λ = 650
nm)
(CD:
λ = 790 nm)
Emission duration: continuous
Signal format system
NTSC
Tuner Section
System
System
PLL quartz-locked digital synthe-
sizer
sizer
FM tuner section
Tuning range
Tuning range
87.5 MHz - 108.0 MHz (100 kHz
step)
step)
Antenna (aerial)
FM wire antenna (aerial)
Antenna (aerial) terminals
75 ohms, unbalanced
Intermediate frequency
10.7 MHz
AM tuner section
Tuning range
Tuning range
530 kHz - 1,710 kHz (with the
interval set at 10 kHz)
interval set at 10 kHz)
531 kHz - 1,710 kHz (with the
interval set at 9 kHz)
interval set at 9 kHz)
Antenna (aerial)
AM loop antenna (aerial)
Intermediate frequency
450 kHz
Video Section
Outputs
Outputs
VIDEO: 1 Vp-p 75 ohms
COMPONENT:
Y: 1 Vp-p 75 ohms
P
B
/C
B
, P
R
/C
R
: 0.7 Vp-p 75 ohms
HDMI OUT: Type A (19 pin)
HCD-HDX678WF/HDX975WF
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.
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.
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
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.
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)
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)
Fig. A. Using an AC voltmeter to check AC leakage.
1.5 k
Ω
0.15
μF
AC
voltmeter
(0.75 V)
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Parts on Set
Earth Ground
SAFETY-RELATED COMPONET 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
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.
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 COM- POSANTS QUE
PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DON-
NÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS
PUBLIÉS PAR SONY.
LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES
PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONC-
TIONNEMENT. NE REMPLACER CES COM- POSANTS QUE
PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DON-
NÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS
PUBLIÉS PAR SONY.
CAUTION
Use of controls or adjustments or performance of procedures other than
those specifi ed herein may result in hazardous radiation exposure.
Use of controls or adjustments or performance of procedures other than
those specifi ed herein may result in hazardous radiation exposure.
General
Power requirements
Power requirements
120 V AC, 60 Hz
Power consumption
HCD-HDX678WF On:
HCD-HDX678WF On:
130
W
Standby: 0.3 W (at the Power Saving
mode)
mode)
HCD-HDX975WF On:
130
W
Standby: 0.3 W (at the Power Saving
mode)
mode)
Output voltage (DIGITAL MEDIA PORT)
DC
DC
5
V
Output current (DIGITAL MEDIA PORT)
700
700
mA
Dimensions (approx.)
430 mm × 85 mm × 420 mm (17 in ×
3
3
3
/
8
in × 16
5
/
8
in) (w/h/d) incl.
projecting
parts
430 mm × 85 mm × 450 mm (17 in ×
3
3
3
/
8
in × 17
3
/
4
in) (w/h/d) with the
wireless transceiver inserted
Mass (approx.)
5.2 kg (11 lb 8 oz)
Design and specifi cations are subject to change without notice.
HCD-HDX678WF/HDX975WF
3
SELF DIAGNOSIS FUNCTION
(When letters/numbers appear in the
display)
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 on
the TV screen or front panel display. In this case,
check the following table.
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 on
the TV screen or front panel display. In this case,
check the following table.
When displaying the version
number on the TV screen
When you turn on the system, the version
number [VER.X.XX] (X is a number) may
appear on the TV screen. Although this is not a
malfunction and for Sony service use only,
normal system operation will not be possible.
Turn off the system, and then turn on the system
again to operate.
number [VER.X.XX] (X is a number) may
appear on the TV screen. Although this is not a
malfunction and for Sony service use only,
normal system operation will not be possible.
Turn off the system, and then turn on the system
again to operate.
First 3
characters of
the service
number
characters of
the service
number
Cause and/or corrective action
C 13
The disc is dirty.
Clean the disc with a soft cloth
Clean the disc with a soft cloth
(page 100).
C 31
The disc is not inserted correctly.
Restart the system, then re-insert
Restart the system, then re-insert
the disc correctly.
E XX
(XX is a
number)
number)
To prevent a malfunction, the
system has performed the self-
diagnosis function.
Contact your nearest Sony
system has performed the self-
diagnosis function.
Contact your nearest Sony
dealer or local authorized Sony
service facility and give the 5-
character service number.
service facility and give the 5-
character service number.
Example: E 61 10
C:13:50
VER.X.XX
HCD-HDX678WF/HDX975WF
4
1.
SERVICING NOTES
............................................. 5
2. GENERAL
.................................................................. 9
3. DISASSEMBLY
3-1. Disassembly
Flow
........................................................... 11
3-2. Case
(DCR)
..................................................................... 12
3-3. Front Panel Block ........................................................... 12
3-4. POWER
3-4. POWER
Board
................................................................ 13
3-5. Back Panel Block ............................................................ 13
3-6. DSP Board, SPEAKER Board ........................................ 14
3-7. SERIPARA Board, MAIN Board ................................... 14
3-8. Cover
3-6. DSP Board, SPEAKER Board ........................................ 14
3-7. SERIPARA Board, MAIN Board ................................... 14
3-8. Cover
(CDM-DCR)
........................................................ 15
3-9. DVD Mechanism Deck (CDM81C-DVBU101) ............. 15
3-10. Tray (Main) Assy ............................................................ 16
3-11. MOTOR Board ............................................................... 16
3-12. Optical Pick-up Section .................................................. 17
3-13. Optical Pick-up Block
3-10. Tray (Main) Assy ............................................................ 16
3-11. MOTOR Board ............................................................... 16
3-12. Optical Pick-up Section .................................................. 17
3-13. Optical Pick-up Block
(KHM-310CAB or KHM-313CAB) ............................... 17
3-14. Gear (Sub Tray 1)/Gear (Sub Tray 2) ............................. 18
3-15. Lever (Mode) .................................................................. 18
3-16. Stocker Block .................................................................. 19
3-17. Cam (Stocker) ................................................................. 19
3-18. Gear (Stocker 3) .............................................................. 20
3-19. Rotary Encoder (MD) (S771) ......................................... 20
3-20. Gear (BU1) ..................................................................... 21
3-15. Lever (Mode) .................................................................. 18
3-16. Stocker Block .................................................................. 19
3-17. Cam (Stocker) ................................................................. 19
3-18. Gear (Stocker 3) .............................................................. 20
3-19. Rotary Encoder (MD) (S771) ......................................... 20
3-20. Gear (BU1) ..................................................................... 21
4.
TEST MODE
............................................................ 22
5. ELECTRICAL
ADJUSTMENTS
........................ 26
6. DIAGRAMS
6-1. Block Diagram - RF SERVO/VIDEO Section - ............. 27
6-2. Block
6-2. Block
Diagram
- CHANGER/HDMI/DMPORT Section - ...................... 28
6-3. Block Diagram - TUNER/S-AIR Section - .................... 29
6-4. Block Diagram - AUDIO Section - ................................. 30
6-5. Block Diagram - AMP Section - ..................................... 31
6-6. Block Diagram - PANEL/POWER SUPPLY Section - .. 32
6-7. Printed
6-4. Block Diagram - AUDIO Section - ................................. 30
6-5. Block Diagram - AMP Section - ..................................... 31
6-6. Block Diagram - PANEL/POWER SUPPLY Section - .. 32
6-7. Printed
Wiring
Board
- MAIN Board (Component Side) - ................................ 34
6-8. Printed
Wiring
Board
- MAIN Board (Conductor Side) - .................................. 35
6-9. Schematic Diagram - MAIN Board (1/12) - ................... 36
6-10. Schematic Diagram - MAIN Board (2/12) - ................... 37
6-11. Schematic Diagram - MAIN Board (3/12) - ................... 38
6-12. Schematic Diagram - MAIN Board (4/12) - ................... 39
6-13. Schematic Diagram - MAIN Board (5/12) - ................... 40
6-14. Schematic Diagram - MAIN Board (6/12) - ................... 41
6-15. Schematic Diagram - MAIN Board (7/12) - ................... 42
6-16. Schematic Diagram - MAIN Board (8/12) - ................... 43
6-17. Schematic Diagram - MAIN Board (9/12) - ................... 44
6-18. Schematic Diagram - MAIN Board (10/12) - ................. 45
6-19. Schematic Diagram - MAIN Board (11/12) - ................. 46
6-20. Schematic Diagram - MAIN Board (12/12) - ................. 47
6-21. Printed Wiring Board - SERIPARA Board - ................... 47
6-22. Schematic Diagram - SERIPARA Board - ...................... 48
6-23. Printed Wiring Board - DSP Board - .............................. 50
6-24. Schematic Diagram - DSP Board - ................................. 51
6-25. Printed Wiring Board - S-AIR INC Board - ................... 52
6-26. Schematic Diagram - S-AIR INC Board - ...................... 53
6-27. Printed Wiring Board
6-10. Schematic Diagram - MAIN Board (2/12) - ................... 37
6-11. Schematic Diagram - MAIN Board (3/12) - ................... 38
6-12. Schematic Diagram - MAIN Board (4/12) - ................... 39
6-13. Schematic Diagram - MAIN Board (5/12) - ................... 40
6-14. Schematic Diagram - MAIN Board (6/12) - ................... 41
6-15. Schematic Diagram - MAIN Board (7/12) - ................... 42
6-16. Schematic Diagram - MAIN Board (8/12) - ................... 43
6-17. Schematic Diagram - MAIN Board (9/12) - ................... 44
6-18. Schematic Diagram - MAIN Board (10/12) - ................. 45
6-19. Schematic Diagram - MAIN Board (11/12) - ................. 46
6-20. Schematic Diagram - MAIN Board (12/12) - ................. 47
6-21. Printed Wiring Board - SERIPARA Board - ................... 47
6-22. Schematic Diagram - SERIPARA Board - ...................... 48
6-23. Printed Wiring Board - DSP Board - .............................. 50
6-24. Schematic Diagram - DSP Board - ................................. 51
6-25. Printed Wiring Board - S-AIR INC Board - ................... 52
6-26. Schematic Diagram - S-AIR INC Board - ...................... 53
6-27. Printed Wiring Board
- I/O Board (Component Side) - ..................................... 54
6-28. Printed Wiring Board
- I/O Board (Conductor Side) - ....................................... 55
TABLE OF CONTENTS
6-29. Schematic Diagram - I/O Board - ................................... 56
6-30. Printed Wiring Board - SPEAKER Board - .................... 57
6-31. Schematic Diagram - SPEAKER Board - ....................... 57
6-32. Printed Wiring Board - JACK-KEY Section - ................ 58
6-33. Schematic Diagram - JACK-KEY Section - ................... 59
6-34. Printed Wiring Boards - RELAY Section - ..................... 60
6-35. Schematic Diagram - RELAY Section - ......................... 61
6-36. Printed Wiring Board - FL Board - ................................. 62
6-37. Schematic Diagram - FL Board - .................................... 63
6-38. Printed Wiring Board - POWER Board - ........................ 64
6-38. Schematic Diagram - POWER Board - .......................... 65
6-30. Printed Wiring Board - SPEAKER Board - .................... 57
6-31. Schematic Diagram - SPEAKER Board - ....................... 57
6-32. Printed Wiring Board - JACK-KEY Section - ................ 58
6-33. Schematic Diagram - JACK-KEY Section - ................... 59
6-34. Printed Wiring Boards - RELAY Section - ..................... 60
6-35. Schematic Diagram - RELAY Section - ......................... 61
6-36. Printed Wiring Board - FL Board - ................................. 62
6-37. Schematic Diagram - FL Board - .................................... 63
6-38. Printed Wiring Board - POWER Board - ........................ 64
6-38. Schematic Diagram - POWER Board - .......................... 65
7.
EXPLODED VIEWS
7-1. Case
Section
.................................................................... 84
7-2. Front Panel Section ......................................................... 85
7-3. Chassis
7-3. Chassis
Section
............................................................... 86
7-4. DVD Mechanism Deck Section-1
(CDM81C-DVBU101)
(CDM81C-DVBU101)
...................................................
87
7-5. DVD Mechanism Deck Section-2
(CDM81C-DVBU101)
(CDM81C-DVBU101)
...................................................
88
7-6. DVD Mechanism Deck Section-3
(CDM81C-DVBU101)
(CDM81C-DVBU101)
...................................................
89
7-7. Optical Pick-up Section .................................................. 90
8.
ELECTRICAL PARTS LIST
.............................. 91