• HCD-EX600 is the amplifi er, USB, CD player
and tuner section in MHC-EX600.
• HCD-EX700 is the amplifi er, USB, CD player
and tuner section in MHC-EX700.
• HCD-EX900 is the amplifi er, USB, CD player
and tuner section in MHC-EX900.
• 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/orother countries.
• This product contains technology subject to certain intellectual property
rights of Microsoft. Use or distribution of this technology outside of this
product is prohibited without the appropriate license(s) from Microsoft.
Amplifi er section
The following measured at AC 230 V,
50/60 Hz
HCD-EX900
Front Speaker:
Power output (rated):
80 W + 80 W (at 3 Ω, 1 kHz, 1% THD)
RMS output power (reference):
135 W + 135 W (per channel at 3 Ω,
1 kHz)
Subwoofer:
RMS output power (reference):
200 W (at 8 Ω, 100 Hz)
HCD-EX700
Power output (rated):
120 W + 120 W (at 4 Ω, 1 kHz, 1% THD)
RMS output power (reference):
200 W + 200 W (per channel at 4 Ω,
1 kHz)
HCD-EX600
Power output (rated):
50 W + 50 W (at 4 Ω, 1 kHz, 1%
THD)
RMS output power (reference):
90 W + 90 W (per channel at 4 Ω,
1 kHz)
PHONES (stereo mini jack):
accepts headphones with an
impedance of 8 Ω or more
SPEAKERS: impedance
HCD-EX900: impedance 3 ΩHCD-EX700/EX600: impedance 4 Ω
SUBWOOFER (HCD-EX900 only):
impedance 8 Ω
Model Name Using Similar MechanismNew
Mechanism TypeCDM76B-D1BD76
Optical Pick-up Block NameDA11MMVGP
CD player section
System:
Compact disc and digital audio
system
Laser Diode Properties
Emission Duration: Continuous
Laser Output*: Less than 44.6μW
* 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.
Frequency response: 20 Hz – 20 kHz
Signal-to-noise ratio: More than 90 dB
Dynamic range: More than 88 dB
Tuner section
FM stereo, FM/AM superheterodyne tuner
Antenna:
FM lead antenna
AM loop antenna
Power requirements
Russian model:
AC 220 V ‒ 240 V, 50/60 HzOther models:
AC 120 V ‒ 240 V, 50/60 Hz
Power consumption
HCD-EX900: 85 W
(0.5 W at the Power Saving Mode)
HCD-EX700: 70 W
(0.5 W at the Power Saving Mode)
HCD-EX600: 45 W
(0.5 W at the Power Saving Mode)
Dimensions (W/H/D) (excl. speakers)
Approx. 210 mm × 312 mm ×
375 mm
Mass (excl. speakers)
HCD-EX900/EX700: Approx. 3.8 kg
HCD-EX600: Approx. 3.6 kg
Design and specifi cations are subject to
change without notice.
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 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.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specifi ed herein may result in hazardous radia-
tion exposure.
This appliance is classifi ed as
a CLASS 1 LASER product.
This marking is located on the
rear exterior.
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.
7. ELECTRICAL PARTS LIST .............................. 55
Accessories are given in the last of the electrical parts list.
3
HCD-EX600/EX700/EX900
SECTION 1
SERVICING NOTES
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.
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.
MODEL IDENTIFICATION
– Model Number Label –
Parts No.
ModelPart No.
EX900: RU model
EX600: AEP model
EX600: RU model
EX700: AEP model
• Abbreviation
RU : Russian model
: Since the HCD-EX600: AEP model have their model number
*
4-263-770-0[]
*
4-263-777-0[]
4-263-783-0[]
labels marked directly on the back panel, the model number
labels have no relative part numbers.
Because of this, determine the model through the marked model
number when comparing the difference between these models.
RELEASING THE DISC TRAY LOCK
The disc tray lock function for the antitheft of an demonstration
disc in the store is equipped.
Releasing Procedure:
1. Press [
] button to turn the power on.
?/1
2. Press the [FUNCTION] button to select CD function.
3. While pressing the [x] button for more 5 seconds.
4. The message “CHILD LOCK OFF” is displayed and the disc
tray is unlocked.
Note: When “CHILD LOCK ON” is displayed, the slot lock is not re-
leased by turning power on/off with the [
?/1
] button.
4
SERVICE POSITION OF CDM76
top panel section
BD76 board
HCD-EX600/EX700/EX900
SERVICE POSITION OF BOARDS
stand
PANEL board
tuner unit
AMP SMPS board
5
HCD-EX600/EX700/EX900
HOW TO OPEN THE TRAY WHEN POWER SWITCH TURN OFF
bracket
pin
Pull the tray by the hand.
CAPACITOR DISCHARGE FOR ELECTRIC SHOCK PREVENTION
AMP SMPS board
(Right side view)
6
In checking the AMP SMPS board, make a capacitor
discharge of C624 (EX600) or C625 (EX700) or C631
(EX900) and C914 for electrical shock prevention.
800 :/2 W
AMP SMPS board
C624 (EX600)
C625 (EX700)
C631 (EX900)
800 :/2 W
C914
PRECAUTION WHEN INSTALLING A NEW OP UNIT/
PRECAUTION BEFORE UNSOLDERING THE STATIC
ELECTRICITY PREVENTION SOLDER BRIDGE
HCD-EX600/EX700/EX900
When installing a new OP unit, be sure to connect the fl exible
printed circuit board fi rst of all before removing the static electric-
ity prevention solder bridge by unsoldering.
Remove the static electricity prevention solder bridge by unsoldering after the fl exible printed circuit board has already been con-
nected.
(Do not remove nor unsolder the solder bridge as long as the OP
unit is kept standalone.)
7
HCD-EX600/EX700/EX900
DISASSEMBLY
• This set can be disassembled in the order shown below.
SET
2-1. SIDE CASE (L),
SIDE CASE (R)
(Page 9)
2-2. TOP PANEL SECTION
(Page 9)
SECTION 2
2-3. SHIELD (POWER-PWB)
(Page 10)
2-4. FRONT PANEL SECTION
(Page 10)
2-7. KNOB (VOL)
(Page 13)
2-5. BACK PANEL SECTION
(Page 11)
2-6. AMP SMPS BOARD
(Page 12)
2-8. CD MECHANISM DECK
(Page 13)
2-9. BASE UNIT
(Page 14)
2-10. OPTICAL PICK-UP
(Page 14)
8
Note: Follow the disassembly procedure in the numerical order given.
The cold reset clears all data including preset data stored in the
memory to initial conditions. Execute this mode when returning
the set to the customer.
Procedure:
1. In the standby status, press the [
] button to turn the power
?/1
on.
2. Press three buttons of [x], [FUNCTION] and [
] simultane-
?/1
ously.
3. When “RESET” appears, the set enters standby status.
PANEL TEST MODE
Enter The Panel Test Mode
Procedure:
1. In the standby status, press the [
] button to turn the power
?/1
on.
2. Press three buttons of [x], [OPTIONS] and [
] simultane-
?/1
ously.
3. When the panel test mode is activated, all LEDs and segments
of the liquid crystal display panel are all turned on.
Version Check
Procedure:
1. In the panel test mode (all LEDs and segments of the liquid
crystal display panel are turned on), press the [FUNCTION]
button.
2. On the liquid crystal display panel, date and version are displayed “xxxxVxxx”.
3. From this status, press the [u] button, and the destination and
model name are displayed.
4. To release from this mode, press three buttons of [x], [OPTIONS] and [
] simultaneously.
?/1
Key Test Mode
Procedure:
1. In the panel test mode (all LEDs and segments of the liquid
crystal display panel are turned on), press the [x] button.
2. The message “KEY0 0 0” displayed. Whenever any buttons
are pressed and the [VOLUME] control is turned, the value is
changed.
3. To release from this mode, press three buttons of [x], [OPTIONS] and [
] simultaneously.
?/1
CD TRAY LOCK
This mode is for the antitheft of CD disc in shop. (not for transport)
Procedure:
1. Press the [
] button to turn the power on.
?/1
2. Press the [FUNCTION] button to select CD function.
3. Insert a disc.
4. While pressing the [x] button for more 5 seconds.
5. The message “CHILD LOCK ON” is displayed and the disc
tray is locked. (Even if releasing from this mode, the disc tray
is still locked)
6. If press the [Z] button to eject the disc, the message “CHILD
LOCK” is displayed and can not eject the disc.
7. To release this lock, while pressing the [x] button for 5 seconds again.
8. The message “CHILD LOCK OFF” is displayed and the disc
tray is unlocked.
CD POWER MANAGE
This mode is for switch the CD power supply on/off. Even if this
state pulls out AC plug, it is held.
Procedure:
1. Press the [
] button to turn the power on.
?/1
2. Press the [FUNCTION] button to select CD function.
3. Press the [
] button again to turn the power off (clock
?/1
mode).
4. After pressing the [DISPLAY] button on the remote commander, while pressing the [x] button, press the [
?/1
] button.
5. It turns power on and display “CD/USB”, then display “PWR
ON” or “PWR OFF”.
CHANGE-OVER THE AM TUNING INTERVAL
The AM tuning interval can be changed over 9 kHz or 10 kHz.
Procedure:
1. Press the [
] button to turn the power on.
?/1
2. Press the [FUNCTION] button to select TUNER AM function.
3. Press the [
] button again to turn the power off (clock
?/1
mode).
4. After pressing the [DISPLAY] button on the remote commander, while pressing the [TUNING + M L] button,
press the [
?/1
] button.
5. It turns power on and display “9k STEP” or “10k STEP”, and
thus the tuning interval is changed over.
CD SHIP MODE
This mode can run the CD sled motor optionally. Use this mode,
for instance, when cleaning the optical pick-up.
Procedure:
1. Press the [
] button to turn the power on.
?/1
2. Confi rm there is no disc in tray.
3. Press the [FUNCTION] button to select CD function.
4. Press two buttons of [x] and [
] simultaneously.
?/1
5. Set to the CD ship mode (chucking on).
6. After blink “STANDBY”, “CHILD LOCK ON” is displayed,
disconnect the AC plug.
CD SHIP AND COLD RESET
Procedure:
1. Press the [
] button to turn the power on.
?/1
2. Confi rm there is no disc in tray.
3. Press the [FUNCTION] button to select CD function.
4. Press three buttons of [ENTER], [TUNING– l m] and
[
] simultaneously.
?/1
5. After blink “STANDBY”, “RESET” is displayed, disconnect
the AC plug.
15
HCD-EX600/EX700/EX900
SECTION 4
ELECTRICAL ADJUSTMENTS
CD SECTION
Note:
1. CD Block is basically constructed to operate without adjustment.
2. Use YEDS-18 disc (Part No. 3-702-101-01) unless otherwise indicated.
3. Use an oscilloscope with more than 10 MΩ impedance.
4. Clean the object lens by an applicator with neutral detergent when the
signal level is low than specifi ed value with the following checks.
5. Check the focus bias check when optical pick-up block is replaced.
FOCUS BIAS CHECK
oscilloscope
(DC range)
BD76 board
CL102 (RFOUT)
CL117 (VREF)
Procedure:
1. Connect the oscilloscope to CL102 (RFOUT) and CL117
(VREF) on the BD76 board.
2. Press the [
] button to turn the power on, and press the
?/1
[FUNCTION] button to select CD function.
3. Set disc (YEDS-18) and press the [u] button to playback.
4. Confi rm that oscilloscope waveform is as shown in the fi gure
below (eye pattern).
A good eye pattern means that the diamond shape (◊) in the
center of the waveform can be clearly distinguished.
+
–
VOLT/DIV: 200 mV
TIME/DIV: 500 ns
TUNER SECTION
0 dB = 1 μV
FM AUTO STOP CHECK
signal
generator
set
+
75 :
–
Procedure:
1. Turn the power on.
2. Input the following signal from Signal Generator to FM antenna input directly.
Carrier frequency : A = 87.5 MHz, B = 98 MHz, C = 108 MHz
Deviation : 75 kHz
Modulation : 1 kHz
ANT input : 35 dBu (EMF)
Note: Please use 75 ohm “coaxial cable” to connect SG and the set. You
cannot use video cable for checking.
Please use SG whose output impedance is 75 ohm.
3. Set to FM tuner function and scan the input FM signal with
automatic scanning.
4. Confi rm that input Frequency of A, B and C detected and auto-
matic scanning stops.
Checking Location:
– BD76 Board (Side B) –
CL102
(RFOUT)
IC101
CL117
(VREF)
level:
1.1 ± 0.4 Vp-p
The stop of automatic scanning means “The station signal is received in good condition”.