Read Sony CMT-DH50R / CMT-DH70SWR / HCD-DH50R / HCD-DH70SWR Service Manual online
SERVICE MANUAL
Sony Corporation
Audio&Video Business Group
Published by Sony Techno Create Corporation
HCD-DH50R/DH70SWR
SPECIFICATIONS
DVD RECEIVER
9-889-569-02
2009G05-1
©
2009.07
AEP Model
HCD-DH50R/DH70SWR
Singapore Model
Taiwan Model
Korean Model
Thai Model
HCD-DH50R
• HCD-DH50R is the amplifi er, USB, disc player and
tuner section in CMT-DH50R.
• HCD-DH70SWR is the amplifi er, USB, disc player and
tuner section in CMT-DH70SWR.
• When the operation of the HCD-DH70SWR is con-
fi rmed, it is necessary to connect the SA-WDH70SWR.
Confi rm the HCD-DH70SWR and SA-WDH70SWR
are prepared beforehand when you repair.
Model Name Using Similar Mechanism
NEW
DVD Mechanism Type
CDM86A-DVBU101
Optical Pick-up Block Name
KHM-313CAB
Ver. 1.1 2009.07
Photo: HCD-DH50R
• This product incorporates copyright protection technol-
ogy that is protected by U.S. patents and other intellectual
property rights. Use of this copyright protection technol-
ogy must be authorized by Macrovision, and is intended
for home and other limited viewing uses only unless oth-
erwise authorized by Macrovision. Reverse engineering or
disassembly is prohibited.
property rights. Use of this copyright protection technol-
ogy must be authorized by Macrovision, and is intended
for home and other limited viewing uses only unless oth-
erwise authorized by Macrovision. Reverse engineering or
disassembly is prohibited.
• This system incorporates Dolby1) Digital and DTS2)
Digital Surround System.
1) Manufactured under license from Dolby Laboratories.
“Dolby” and the double- D symbol are trademarks of
Dolby Laboratories.
Dolby Laboratories.
2) Manufactured under license under U.S. Patent
#’s: 5,451,942; 5,956,674; 5,974,380; 5,978,762;
6,487,535 & other U.S. and worldwide patents issued
& pending. DTS and DTS 2.0 + Digital Out are regis-
tered trademarks and the DTS logos and Symbol are
trademarks of DTS, Inc. ©1996-2008 DTS, Inc. All
Rights Reserved.
6,487,535 & other U.S. and worldwide patents issued
& pending. DTS and DTS 2.0 + Digital Out are regis-
tered trademarks and the DTS logos and Symbol are
trademarks of DTS, Inc. ©1996-2008 DTS, Inc. All
Rights Reserved.
• “DVD+RW,” “DVD-RW,” “DVD+R,” “DVD VIDEO,”
and the “CD” logos are trademarks.
• DivX® is a video fi le compression technology, developed
by DivX, Inc. DivX, DivX Certifi ed, and associated logos
are trademarks of DivX, Inc. and are used under license.
This product is an offi cial DivX® certifi ed product.
are trademarks of DivX, Inc. and are used under license.
This product is an offi cial DivX® certifi ed product.
• MPEG Layer-3 audio coding technology and patents li-
censed from Fraunhofer IIS and Thomson.
• This system incorporates High-Defi nition Multimedia In-
terface (HDMITM) technology. HDMI, the HDMI logo
and High-Defi nition Multimedia Interface are trademarks
or registered trademarks of HDMI Licensing LLC.
and High-Defi nition Multimedia Interface are trademarks
or registered trademarks of HDMI Licensing LLC.
• “BRAVIA” is a trademark of Sony Corporation.
• Control for HDMI is a mutual control function standard
• Control for HDMI is a mutual control function standard
used by CEC (Consumer Electronics Control) for HDMI
(High-Defi nition Multimedia Interface).
(High-Defi nition Multimedia Interface).
• Windows Media is a registered trademark of Microsoft
Corporation in the United States and/or other countries.
• THIS PRODUCT IS LICENSED UNDER THE MPEG-
4 VISUAL PATENT PORTFOLIO LICENSE FOR THE
PERSONAL AND NON-COMMERCIAL USE OF A
CONSUMER FOR
PERSONAL AND NON-COMMERCIAL USE OF A
CONSUMER FOR
(i) ENCODING VIDEO IN COMPLIANCE WITH THE
MPEG-4 VISUAL STANDARD (“MPEG-4 VIDEO”)
MPEG-4 VISUAL STANDARD (“MPEG-4 VIDEO”)
AND/OR
(ii) DECODING MPEG-4 VIDEO THAT WAS ENCOD-
ED BY A CONSUMER ENGAGED IN A PERSONAL
AND NONCOMMERCIAL ACTIVITY AND/OR WAS
OBTAINED FROM A VIDEO PROVIDER LICENSED
BY MPEG LA TO PROVIDE MPEG-4 VIDEO.
ED BY A CONSUMER ENGAGED IN A PERSONAL
AND NONCOMMERCIAL ACTIVITY AND/OR WAS
OBTAINED FROM A VIDEO PROVIDER LICENSED
BY MPEG LA TO PROVIDE MPEG-4 VIDEO.
NO LICENSE IS GRANTED OR SHALL BE IMPLIED
FOR ANY OTHER USE. ADDITIONAL INFORMA-
TION INCLUDING THAT RELATING TO PROMO-
TIONAL, INTERNAL AND COMMERCIAL USES
AND LICENSING MAY BE OBTAINED FROM MPEG
LA, LLC. SEE http://www.mpegla.com/
FOR ANY OTHER USE. ADDITIONAL INFORMA-
TION INCLUDING THAT RELATING TO PROMO-
TIONAL, INTERNAL AND COMMERCIAL USES
AND LICENSING MAY BE OBTAINED FROM MPEG
LA, LLC. SEE http://www.mpegla.com/
HCD-DH70SWR
DIN power output (rated)
45 + 45 watts (5.5 ohms at 1 kHz,
DIN)
DIN)
Continuous RMS power output (reference)
60 + 60 watts (5.5 ohms at 1 kHz, 10%
THD)
THD)
Music power output (reference):
60 + 60 watts (5.5 ohms at 1 kHz, 10%
THD)
THD)
HCD-DH50R
DIN power output (rated)
60 + 60 watts (4 ohms at 1 kHz, DIN)
Continuous RMS power output (reference)
80 + 80 watts (4 ohms at 1 kHz, 10%
THD)
THD)
Music power output (reference):
80 + 80 watts (4 ohms at 1 kHz, 10%
THD)
THD)
Inputs
TV/VIDEO AUDIO IN (phono jack):
voltage 450 mV/250 mV, impedance
47 kilohms
47 kilohms
AUDIO IN (stereo mini jack):
voltage 700 mV, impedance
47 kilohms
47 kilohms
MIC (mini jack):
sensitivity 0.8 mV, impedance
10 kilohms
10 kilohms
FRONT SPEAKER
HCD-DH70SWR: Use only the
supplied speakers SS-CDH70SWR.
HCD-DH50R: Use only the supplied
speakers SS-CDH50R2 (only for
European and Russian models)/SS-
CDH50R (only for Asian models).
supplied speakers SS-CDH70SWR.
HCD-DH50R: Use only the supplied
speakers SS-CDH50R2 (only for
European and Russian models)/SS-
CDH50R (only for Asian models).
SUBWOOFER (HCD-DH70SWR only):
Use only the supplied subwoofer SA-
WDH70SWR.
WDH70SWR.
USB section
Supported bit rate
MP3 (MPEG1 Audio Layer-3):
32 — 320 kbps
WMA: 48 — 192 kbps
AAC: 48 — 320 kbps
32 — 320 kbps
WMA: 48 — 192 kbps
AAC: 48 — 320 kbps
Sampling frequencies
MP3 (MPEG1 Audio Layer-3):
32/44.1/48 kHz
WMA: 44.1 kHz
AAC: 44.1 kHz
32/44.1/48 kHz
WMA: 44.1 kHz
AAC: 44.1 kHz
(USB) port:
Maximum current:
500 mA
500 mA
Disc player section
System:
Compact disc and digital audio and
video system
video system
Laser Diode Properties
Emission duration: Continuous
Laser Output*: Less than 1000μW
Laser Output*: Less than 1000μW
This output is the value measurement
*
at a distance of 200mm from the
objective lens surface on the Optical
Pick-up Block with 7mm aperture.
objective lens surface on the Optical
Pick-up Block with 7mm aperture.
Frequency response
DVD (PCM 48 kHz): 2 Hz — 22 kHz
(±1 dB)
CD: 2 Hz — 20 kHz (±0.5 dB)
(±1 dB)
CD: 2 Hz — 20 kHz (±0.5 dB)
Video color system format
European and Russian models: PAL
Other models: NTSC and PAL
Other models: NTSC and PAL
Amplifier section
Outputs
VIDEO OUT (phono jack):
max. output level 1 Vp-p, unbalanced,
Sync negative, load impedance
75 ohms
Sync negative, load impedance
75 ohms
COMPONENT VIDEO OUT:
Y
P
B
/C
B
: 0.7 V
P
R
/C
R
: 0.7 V
: 1 Vp-p, 75 ohms
p-p, 75 ohms
p-p, 75 ohms
p-p, 75 ohms
HDMI OUT: Type A (19 pins)
DIGITAL OUT OPTICAL (square optical
connector jack, rear panel):
DIGITAL OUT OPTICAL (square optical
connector jack, rear panel):
Wavelength 660 nm
PHONES (stereo mini jack):
accepts headphones of 8 ohms or
more
more
– Continued on next page –
HCD-DH50R/DH70SWR
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.
FLEXIBLE CIRCUIT BOARD REPAIRING
•
•
Keep the temperature of soldering iron around 270 °C during
repairing.
repairing.
•
Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
circuit board (within 3 times).
•
Be careful not to apply force on the conductor when soldering
or unsoldering.
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
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.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specifi ed herein may result in hazardous radia-
tion exposure.
Use of controls or adjustments or performance of procedures
other than those specifi ed herein may result in hazardous radia-
tion exposure.
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range:
87.5 — 108.0 MHz (50 kHz step)
Antenna:
FM lead antenna
Antenna terminals:
75 ohms unbalanced
Intermediate frequency:
10.7 MHz
AM tuner section
Tuning range:
European and Russian models:
531 — 1,602 kHz (9 kHz step)
Other models:
531 — 1,602 kHz (9 kHz step)
530 — 1,610 kHz (10 kHz step)
531 — 1,602 kHz (9 kHz step)
Other models:
531 — 1,602 kHz (9 kHz step)
530 — 1,610 kHz (10 kHz step)
Antenna:
AM loop antenna
Antenna terminals:
External antenna terminal
Intermediate frequency:
450 kHz
General
Power requirements
AC 220
Taiwan model:
Other models:
AC 120 V, 50/60 Hz
— 240 V, 50/60 Hz
Power consumption
HCD-DH70SWR:
50 watts (0.5 W in Power
Saving Mode)
HCD-DH50R: 55 watts (0.5 W in
Power Saving Mode)
50 watts (0.5 W in Power
Saving Mode)
HCD-DH50R: 55 watts (0.5 W in
Power Saving Mode)
Dimensions (w/h/d) (excl. speakers)
HCD-DH70SWR:
Approx. 200 × 171.2 × 210.6 mm
HCD-DH50R:
Approx. 200 × 171.2 × 210.6 mm
Approx. 200 × 171.2 × 210.6 mm
HCD-DH50R:
Approx. 200 × 171.2 × 210.6 mm
Mass (excl. speakers)
HCD-DH70SWR: Approx. 3.0 kg
HCD-DH50R: Approx. 3.0 kg
HCD-DH50R: Approx. 3.0 kg
Supported file format
MP3 (MPEG1 Audio Layer-3)
File extension: .mp3
Bitrate: 32 kbps — 320 kbps
Sampling frequencies: 32/44.1/48 kHz
Bitrate: 32 kbps — 320 kbps
Sampling frequencies: 32/44.1/48 kHz
DivX
File extension: .avi/.divx
Video codec: DivX video
Bitrate: 8 Mbps (MAX)
Frame rate: 30 fps
Resolution: 720 × 576
Audio codec: MP3
Video codec: DivX video
Bitrate: 8 Mbps (MAX)
Frame rate: 30 fps
Resolution: 720 × 576
Audio codec: MP3
MPEG4
File format: MP4 File Format
File extension: .mp4/.m4v
Video codec:
File extension: .mp4/.m4v
Video codec:
(AVC is not compatible.)
Bitrate: 4 Mbps
Frame rate: 30 fps
Resolution: 720 × 576
Audio codec:
Frame rate: 30 fps
Resolution: 720 × 576
Audio codec:
AAC-LC
(HE-AAC is not compatible.)
(HE-AAC is not compatible.)
DRM: Not compatible
change without notice.
MPEG4 Simple Profile
Design and specifications are subject to
This appliance is classified as a CLASS 1
LASER product. This marking is located
on the rear exterior.
LASER product. This marking is located
on the rear exterior.
When displaying the version number
on the TV screen
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
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
the system, and then turn on the system
again to operate.
again to operate.
Self-diagnosis Function
(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 on the TV screen or the front
panel display. In this case, check the
following table.
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 the front
panel display. In this case, check the
following table.
First 3
characters of
the service
number
characters of
the service
number
Cause and corrective
action
action
t Clean the disc with a
the system cannot play.
correctly.
t Restart the system,
then re-insert the
disc correctly.
disc correctly.
E XX
C 31
C 13
(XX is a
number)
number)
To prevent a
malfunction, the
system has performed
the self-diagnosis
function.
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
authorized Sony
service facility and
give the 5-character
service number.
Example: E 61 10
Ver. 1.1
HCD-DH50R/DH70SWR
3
1.
SERVICING NOTES
............................................. 4
2. DISASSEMBLY
2-1. Disassembly Flow ........................................................... 10
2-2. Back Cover, Side_L/R .................................................... 11
2-3. Touch Panel Assy, Top Assy ........................................... 11
2-4. DC Fan (M002) ............................................................... 12
2-5. POW-SUPPLY
2-2. Back Cover, Side_L/R .................................................... 11
2-3. Touch Panel Assy, Top Assy ........................................... 11
2-4. DC Fan (M002) ............................................................... 12
2-5. POW-SUPPLY
Board
..................................................... 12
2-6. Front Panel Block ........................................................... 13
2-7. SP-CONN
2-7. SP-CONN
Board
............................................................. 13
2-8. MAIN
board
.................................................................... 14
2-9. CDM
Cover
..................................................................... 14
2-10. DVD Mechanism Deck (CDM86A-DVBU101) ............ 15
2-11. MD (86A) Assy ............................................................... 15
2-12. Chassis (Top) .................................................................. 16
2-13. MS-214 Board ................................................................. 16
2-14. Holder (BU) Assy ........................................................... 17
2-15. Lever (BU Lock) ............................................................. 17
2-16. Close Lever ..................................................................... 18
2-17. Lever (DIR), Gear (IDL-B) ............................................ 18
2-18. Lever (Loading-L/R) ....................................................... 19
2-19. Lever (Disc Sensor)/(Disc Stop) ..................................... 20
2-20. Gear (IDL-C) .................................................................. 20
2-11. MD (86A) Assy ............................................................... 15
2-12. Chassis (Top) .................................................................. 16
2-13. MS-214 Board ................................................................. 16
2-14. Holder (BU) Assy ........................................................... 17
2-15. Lever (BU Lock) ............................................................. 17
2-16. Close Lever ..................................................................... 18
2-17. Lever (DIR), Gear (IDL-B) ............................................ 18
2-18. Lever (Loading-L/R) ....................................................... 19
2-19. Lever (Disc Sensor)/(Disc Stop) ..................................... 20
2-20. Gear (IDL-C) .................................................................. 20
3.
TEST MODE
............................................................ 21
4.
ELECTRICAL CHECK
......................................... 25
5. DIAGRAMS
5-1. Block Diagram - DVD SERVO Section - ....................... 26
5-2. Block Diagram - VIDEO Section - ................................. 27
5-3. Block Diagram - AUDIO Section - ................................. 28
5-4. Block
5-2. Block Diagram - VIDEO Section - ................................. 27
5-3. Block Diagram - AUDIO Section - ................................. 28
5-4. Block
Diagram
- PANEL/POWER SUPPLY Section - ............................ 29
TABLE OF CONTENTS
5-5. Printed Wiring Boards - DVD SERVO Section - ........... 31
5-6. Schematic Diagram - DVD SERVO Section (1/4) - ....... 32
5-7. Schematic Diagram - DVD SERVO Section (2/4) - ....... 33
5-8. Schematic Diagram - DVD SERVO Section (3/4) - ....... 34
5-9. Schematic Diagram - DVD SERVO Section (4/4) - ....... 35
5-10. Printed Wiring Boards - MAIN Section - ....................... 36
5-11. Schematic Diagram - MAIN Section (1/3) - ................... 37
5-12. Schematic Diagram - MAIN Section (2/3) - ................... 38
5-13. Schematic Diagram - MAIN Section (3/3) - ................... 39
5-14. Printed Wiring Boards - VIDEO/AUDIO Section - ....... 40
5-15. Schematic Diagram - VIDEO-OUT Board -................... 40
5-16. Schematic Diagram - SP-CONN Board - ....................... 41
5-17. Printed Wiring Boards - PANEL Section - ..................... 42
5-18. Schematic Diagram - PANEL Board - ............................ 43
5-19. Schematic Diagram - JACK/USB Boards - .................... 44
5-20. Printed Wiring Board - POW-SUPPLY Board - ............. 46
5-21. Schematic Diagram - POW-SUPPLY Board - ................ 47
5-6. Schematic Diagram - DVD SERVO Section (1/4) - ....... 32
5-7. Schematic Diagram - DVD SERVO Section (2/4) - ....... 33
5-8. Schematic Diagram - DVD SERVO Section (3/4) - ....... 34
5-9. Schematic Diagram - DVD SERVO Section (4/4) - ....... 35
5-10. Printed Wiring Boards - MAIN Section - ....................... 36
5-11. Schematic Diagram - MAIN Section (1/3) - ................... 37
5-12. Schematic Diagram - MAIN Section (2/3) - ................... 38
5-13. Schematic Diagram - MAIN Section (3/3) - ................... 39
5-14. Printed Wiring Boards - VIDEO/AUDIO Section - ....... 40
5-15. Schematic Diagram - VIDEO-OUT Board -................... 40
5-16. Schematic Diagram - SP-CONN Board - ....................... 41
5-17. Printed Wiring Boards - PANEL Section - ..................... 42
5-18. Schematic Diagram - PANEL Board - ............................ 43
5-19. Schematic Diagram - JACK/USB Boards - .................... 44
5-20. Printed Wiring Board - POW-SUPPLY Board - ............. 46
5-21. Schematic Diagram - POW-SUPPLY Board - ................ 47
6.
EXPLODED VIEWS
6-1. Top Panel Section ........................................................... 61
6-2. Rear Panel Section .......................................................... 62
6-3. Front Panel Section ......................................................... 63
6-4. MAIN Board Section ...................................................... 64
6-5. Chassis
6-2. Rear Panel Section .......................................................... 62
6-3. Front Panel Section ......................................................... 63
6-4. MAIN Board Section ...................................................... 64
6-5. Chassis
Section
............................................................... 65
6-6. Mechanism Deck Section-1 (CDM86A-DVBU101) ...... 66
6-7. Mechanism Deck Section-2 (CDM86A-DVBU101) ...... 67
6-8. Mechanism Deck Section-3 (CDM86A-DVBU101) ...... 68
6-9. Mechanism Deck Section-4 (CDM86A-DVBU101) ...... 69
6-7. Mechanism Deck Section-2 (CDM86A-DVBU101) ...... 67
6-8. Mechanism Deck Section-3 (CDM86A-DVBU101) ...... 68
6-9. Mechanism Deck Section-4 (CDM86A-DVBU101) ...... 69
7.
ELECTRICAL PARTS LIST
.............................. 70
Accessories are given in the last of the electrical parts list.
HCD-DH50R/DH70SWR
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
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
• 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.
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
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.
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.
also be added to ordinary solder.
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
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.
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.
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.
NOTES OF THE REPLACING THE IC2005 AND IC7004
ON THE DMB20 BOARD
IC2005 and IC7004 on the DMB20 board cannot exchange with
single. When these parts on the DMB20 board are damaged, ex-
change the entire mounted board.
ON THE DMB20 BOARD
IC2005 and IC7004 on the DMB20 board cannot exchange with
single. When these parts on the DMB20 board are damaged, ex-
change the entire mounted board.
MODEL IDENTIFICATION
PART No.
– Back Panel –
Model
Part No.
HCD-DH50R: AEP
4-141-531-0[]
HCD-DH50R: Russian
4-141-531-1[]
HCD-DH50R: Singapore
4-141-531-2[]
HCD-DH50R: Thai
4-141-531-3[]
HCD-DH50R: Taiwan
4-141-531-4[]
HCD-DH50R: Korean
4-141-531-5[]
HCD-DH70SWR: AEP
4-145-041-0[]
HCD-DH70SWR: Russian
4-145-041-1[]
ADVANCE PREPARATION WHEN CONFIRMING OP-
ERATION
When the operation of the HCD-DH70SWR is confi rmed, it is nec-
essary to connect the SA-WDH70SWR.
Confi rm the HCD-DH70SWR and SA-WDH70SWR are prepared
beforehand when you repair.
ERATION
When the operation of the HCD-DH70SWR is confi rmed, it is nec-
essary to connect the SA-WDH70SWR.
Confi rm the HCD-DH70SWR and SA-WDH70SWR are prepared
beforehand when you repair.
RELEASING THE ANTITHEFT LOCK
The disc slot lock function for the antitheft of an demonstration
disc in the store is equipped.
The disc slot lock function for the antitheft of an demonstration
disc in the store is equipped.
Releasing Procedure:
1. Press the [
1. Press the [
?/1
] button to turn the power on.
2. While pressing the [
x
] button, press the [
Z
] button unit “UN-
LOCKED” displayed on the fl uorescent indicator tube (around
5 seconds) .
5 seconds) .
Note: When “LOCKED”is displayed, the disc slot lock is not released by
turning power on/off with the [?/1] button.
Be sure to bridge here, and then disconnect the
wire (flat type) (24 core).
(optical pick-up block will be destroyed without bridging.)
On the contrary at the installation, connect the
wire (flat type) (24 core) first, and then remove the bridge.
Note: For a soldering iron, use the one with a ground wire.
wire (flat type) (24 core).
(optical pick-up block will be destroyed without bridging.)
On the contrary at the installation, connect the
wire (flat type) (24 core) first, and then remove the bridge.
Note: For a soldering iron, use the one with a ground wire.
PRECAUTION WHEN REMOVING OPTICAL PICK-UP
BLOCK
BLOCK
Ver. 1.1