Sony HCD-WZ5 Service Manual
HCD-WZ5
CD player section
System Compact disc and digital
audio system
Laser Semiconductor laser
(λ=780 nm)
Emission duration:
continuous
Frequency response 2 Hz – 20 kHz (±0.5 dB)
Wavelength 780 – 790 nm
Signal-to-noise ratio More than 90 dB
Dynamic range More than 90 dB
OPTICAL CD DIGITAL OUT (European and
Australian models only)
(Square optical connector jack, rear panel)
Wavelength 660 nm
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
European model: 531 – 1,602 kHz
(with the tuning interval
set at 9 kHz)
Latin American model:
Other model:
General
Power requirements
Power consumption
European model: 150 watts
0.3 watts (at the Power
Saving Mode)
Except for European model:
180 watts
Dimensions (w/h/d)
CD player/Tuner:
Approx. 255 × 1 35 ×
355 mm
Mass
CD player/Tuner: Approx. 2.8 kg
Design and specifications are subject to change
without notice.
Power
voltage is D 9V and fed with STEREO
CASSETTE
DECK AMPLIFIER (DXA-WZ5)
from the external SYSTEM CONTROL connectors.
530 – 1,710 kHz
(with the tuning interval
set at 10 kHz)
531 – 1,710 kHz
(with the tuning interval
set at 9 kHz)
530 – 1,710 kHz
(with the tuning interval
set at 10 kHz)
531 – 1,602 kHz
(with the tuning interval
set at 9 kHz)
antenna AM loop antenna
antenna terminals External antenna terminal
Intermediate frequency 450 kHz
SERVICE MANUAL
Ver 1.1 2003. 11
• HCD-WZ5 is the tuner, and CD
section in MHC-WZ5.
CD CD Mechanism Type CDM77B-K6BD47S
Section Base Unit Name BU-K6BD47S
AEP Model
UK Model
E Model
Australian Model
Model Name Using Similar Mechanism NEW
Optical Pick-up Name KSM-213D
9-877-331-02
2003K16-1
© 2003.11
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
SPECIFICATIONS
COMPACT DISC TUNER
HCD-WZ5
Ver 1.1 2003.11
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 pickup block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
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. This
label is located on the
rear exterior.
The following caution label is located inside the apparatus.
TABLE OF CONTENTS
1. GENERAL ·········································································· 4
2. DISASSEMBLY
2-1. Case··············································································· 7
2-2. Front Panel Assy ··························································· 8
2-3. PANEL Board, CD-TC-SW Board, ENTER-SW
Board, BACK-LIGHT Board, LCD Board ··················· 8
2-4. Tuner (FM/AM), WOOFER Board ······························ 9
2-5. MAIN Board, REGULATOR Board, HP-AMP Board··· 9
2-6. CD mechanism deck (CDM77B-K6BD47S)·············· 10
2-7. Tray (AU) ···································································· 10
2-8. MS-128 Board ···························································· 11
2-9. Base Unit (BU-K6BD47S) ········································· 11
2-10. CD Board, Optical Pick-Up Block (KSM-213D) ······· 12
3. ELECTRICAL ADJUSTMENTS ······························· 13
4. TEST MODE ····································································14
5. DIAGRAMS
5-1. Circuit Boards Location·············································· 15
5-2. Block Diagrams - Main Section - ······························· 16
5-3. Printed Wiring Board - CD Board - ···························· 17
5-4. Schematic Diagram - CD Board - ······························· 18
5-5. Printed Wiring Board - MAIN Section-······················ 19
5-6. Schematic Diagram - MAIN Section (1/2) - ··········· 20
- MAIN Section (2/2) - ··········· 21
5-7. Printed Wiring Board - PANEL Board - ····················· 22
5-8. Schematic Diagram - PANEL Board -························ 23
5-9. Printed Wiring Board - LCD/SWITCH Section - ······· 24
5-10. Schematic Diagram - LCD/SWITCH Section - ·········· 25
5-11. Printed Wiring Board - REGULATOR Board - ·········· 26
5-12. Schematic Diagram - REGULATOR Board - ············ 27
5-13. IC Block Diagrams ····················································· 28
5-14. IC Pin Function Description ······································· 29
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure.
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.
6. EXPLODED VIEWS
6-1. Front Panel Section ····················································· 31
6-2. Chassis Section ···························································· 32
6-3. CD Mechanism Deck Section ····································· 33
6-4. Optical Pick-up Section (KSM-213D) ························ 34
7. ELECTRICAL PARTS LIST ······································· 35
2
[When bringing in the equipment for service]
In case of repairing, please bring the entire system set([HCD-WZ5,
DXA-WZ5],except for the speaker) to the service station.
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 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.
HCD-WZ5
MODEL IDENTIFICATION
— BACK PANEL —
MODEL
AEP, UK models
E2, E3 models
AUS model
KR, TW models
•Abbreviation
AUS: Australian model
E2 : 120V AC Area in E model
E3 : 240V AC Area in E model
KR : Korean model
TW : Taiwan model
PA RTS No.
PARTS No.
4-244-440-0s
4-244-440-1s
4-244-440-2s
4-244-440-7s
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.
3
HCD-WZ5
Main unit
SECTION 1
GENERAL
This section is extracted
from instruction manual.
ALPHABETICAL ORDER
A – L
CD 5 (9, 10, 17, 18)
CD SYNC 9 (17)
Control lever 7 (7, 20)
DIMMER w; ( 24)
Disc tray ws
DISPLAY ql (15, 23, 24)
Display window wa
EQ EDIT qk (20, 29)
GROOVE 7 (19)
Headphone jack qs
M – Z
MD (VIDEO) 2 (26)
MOVIE MODE 7 (19)
MUSIC MODE 7 (19, 20)
PLAY MODE/DIRECTION qg
(9, 10, 16, 17, 18, 30)
PUSH ENTER 7 (8, 10, 12, 20,
21, 22)
Remote sensor qd
REPEAT/FM MODE qh (10, 14)
SURROUND 7 (20)
TAPE A/B 3 (16, 17, 18)
TUNER MEMORY qf (12)
TUNER/BAND 6 (12, 13, 18)
TUNING MODE qj (12, 13)
VOLUME qa (21)
CD player/Tuner
BUTTON DESCRIPTIONS
?/1 (power) 1 (7, 13, 21, 29)
X (pause) 4 (9, 16)
nN (play) 4 (9, 16, 17)
x (stop) 4 (7, 9, 13, 16, 17, 29)
+M> (fast forward/go
forward) 4 (8, 9, 12, 16, 21,
30)
.m– (rewind/go back) 4
(8, 9, 12, 16, 21)
Z (open/close) 8 (8)
z START q; (17, 18)
4
Remote control
234
HCD-WZ5
ALPHABETICAL ORDER
A – L
ALBUM +/– qf (9, 10)
CD 9 (9, 10, 17, 18)
CLEAR 8 (11)
CLOCK/TIMER SELECT 2
(22, 23)
CLOCK/TIMER SET 3 (8, 21,
22)
DISPLAY 6 (15, 23, 24)
DIMMER 7 (24)
EFFECT qh (19, 20)
ENTER wa (8, 10, 12, 20, 22)
GROOVE qg (19)
1
M – Z
MD (VIDEO) ql (26)
MOVIE MODE qa (19)
MUSIC MODE qj (19, 20)
PRESET –/+ 5 (12, 13)
PROGRAM EDIT w; (17)
SLEEP 1 (21)
SURROUND qd (20)
TAPE A/B qk (16, 17, 18)
TUNER/BAND 0 (12, 13, 18)
TUNING –/+ 5 (12, 13)
VOL +/– qs (21)
5
BUTTON DESCRIPTIONS
?/1 (power) 4 (7, 13, 21)
m/M (rewind/fast forward)
5 (9, 16, 30)
./> (go back/go forward)
5 (8, 9, 16, 21)
nN (play) 5 (9, 16, 17)
X (pause) 5 (9, 16)
x (stop) 5 (9, 13, 16, 17)
wa
w;
ql
qk
qj
qh
qg
6
7
8
9
q;
qa
qs
qd
qf
Setting the clock
Use buttons on the remote for the operation.
1
Press ?/1 to turn on the system.
2
Press CLOCK/TIMER SET.
3
Press .or > repeatedly to set the hour.
4
Press ENTER.
5
Press .or > repeatedly to set the minute.
6
Press ENTER.
The clock starts working.
To adjust the clock
1
Press CLOCK/TIMER SET.
2
Press .or > repeatedly to select
“CLOCK SET?”, then press ENTER.
3
Do the same procedures as step 3 to 6
above.
5
HCD-WZ5
Getting Started
Hooking up the system
Perform the following procedures 1 to 5 to hook up your system using the supplied cords and
accessories. Australian model is used for illustration purpose.
FM lead antenna
Amplifier/
CD player/
Tuner Tape deck
Front
speaker (right)
Preparation
Place the components as shown below.
Amplifier/
CD player/
Tape deck
Tuner
AM loop antenna
Front
speaker (left)
2 Connect the speakers.
Connect the speaker cords to the
SPEAKER terminals on the tape deck and
to the terminals on the speakers as shown
below.
L
R
1 Connect the system control cables to
the SYSTEM CONTROL connectors on
the tape deck.
Connect to the same numbered jack in the
order indicated on the rear panel.
Note
The system cable is used to send signals and electricity
between the components for interlinked operation.
Be sure to insert the connector horizontally until it
clicks into place. Otherwise the system will not operate
correctly.
SPEAKER
Speakers
Black (#)
Black (#)
Gray (3)
Gray (3)
6
SECTION 2
DISASSEMBLY
•The equipment can be removed using the following procedure.
SET
CASE
FRONT PANEL ASSY
HCD-WZ5
Ver 1.1 2003.11
PANEL BOARD, CD-TC-SW BOARD,
ENTER-SW BOARD,
BACK-LIGHT BOARD, LCD BOARD
TUNER (FM/AM),
WOOFER BOARD
MAIN BOARD,
REGULATOR BOARD,
HP-AMP BOARD
Note : Follow the disassembly procedure in the numerical order given.
2-1. Case
4
case
3
two screws
(case 3 TP2)
CD MECHANISM DECK
(CDM77B-K6BD47S)
TRAY (AU)
BASE UNIT
(BU-K6BD47S)
CD BOARD, OPTICAL PICK-UP BLOCK
(KSM-213D)
1
MS-128 BOARD
three screws
(+BVTP 3
×
8)
2
two screws
(case 3 TP2)
7
HCD-WZ5
)
2-2. Front Panel Assy
How to eject the disk tray when the
main power cannot be turned on.
3
loading panel
1
2
5
screw
(+BVTP 3
9
connector
(PN108)
6
×
8)
wire
(NO601)
q;
wire (flat type)
(23 core) (CN109)
8
bottom side
qa
front panel
section
4
two screws
(+BVTP 3
×
8)
7
claw
2-3. PANEL Board, CD-TC-SW Board, ENTER-SW Board, BACK-LIGHT Board, LCD Board
qk
w;
qg
three claws
qh
BACK-LIGHT board
wa
front panel assy
LCD assy
Remove the soldering.
ql
LCD board
6
connector
(NO805B)
qj
two screws
(+BVTP 2.6
qf
four screws
(+BVTP 2.6
4
eight screws
(+BVTP 2.6
×
8)
×
8)
×
8)
9
PANEL board
8
wire (flat type)
(23 core) (CN605)
5
3
button (cursor)
2
nut
1
knob (volume)
q;
two claws
qa
CD-TC-SW board
7
connector
(CN603)
qs
two screws
(+BVTP 2.6
qd
ENTER-SW board
two screws
(+BVTP 2.6
×
8)
×
8
8
2-4. Tuner (FM/AM), WOOFER Board
5
two claws
6
MAIN board
8
REGULATOR board
4
connector
(CN114)
2
wire (flat type)
(5 core) (CN103)
3
wire (flat type)
(31 core) (CN101)
1
screw
(+BVTP 3
×
8)
7
four screws
(+BVTP 3
×
8)
9
screw
(+BVTP 3
×
8)
q;
HP-AMP board
5
wire (flat type)
(7 core)
7
cord
connector
(CN107)
3
wire (flat type)
(11 core)
6
WOOFER board
4
tuner (FM/AM)
9
back panel
8
(CN503,CN504)
cord
2
connector
four screws
(+BVTP 3 × 8)
1
three screws
(+BVTP 3 × 8)
HCD-WZ5
2-5. MAIN Board, REGULATOR Board, HP-AMP Board
9
HCD-WZ5
2-6. CD mechanism deck (CDM77B-K6BD47S)
4
CD mechanism deck
(CDM77B-K6BD47S)
2
wire (flat type)
(31 core) (CN101)
1
wire (flat type)
(5 core) (CN103)
3
three screws
(+BVTP 3
×
8)
2-7. Tray (AU)
bottom side
1
3
2
4
tray (AU)
two claws
10
y
2-8. MS-128 Board
1
belt
2
wire (flat type)
(5 core) (CN001)
4
MS-128 board
HCD-WZ5
2-9. Base Unit (BU-K6BD47S)
6
belt
8
support
q;
pulley gear
qa
driving gear
3
four claws
7
claw
qs
chuck cam
1
two claws
4
chucking yoke
pulley (AT) ass
5
9
claw
2
3
base unit (BU-K6BD47S)
11
HCD-WZ5
)
Ver 1.1 2003.11
2-10. CD Board, Optical Pick-Up Block (KSM-213D)
qd
optical pick-up block
(KSM-213D)
qs
two insulators
qa
two coil springs
q;
two screws
(+PTPWHM 2.6)
qf
holder (213)
9
two insulators
8
two coil springs
7
two screws
(+PTPWHM 2.6
5
CD board
1
Remove four solders
of motor.
6
wire (flat type)
(16 core)
4
gap tube
3
screw
(+BVTP 2.6
2
wire (flat type)
(31 core) (CN101)
×
8)
12
SECTION 3
V
IC103
IC150
TP5(RF AC)
TP7(DVC)
IC101
ELECTRICAL ADJUSTMENTS
HCD-WZ5
CD SECTION
Note:
1. CD Block is basically constructed to operate without
adjustment.
2. Use YEDS-18 disc (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 specified value with the
following checks.
5. Check the focus bias check when optical block is replaced.
Focus Bias Check
oscilloscope
(DC range)
BD board
TP5 (RF AC)
TP7 (DVC)
Procedure :
1. Connect an oscilloscope to TP5 (RF AC) and TP7 (DVC) on
the CD board.
2. Press the ?/1 button to turn the power on, and press the Z
button to open the CD disc tray.
3. Put the test disc (YEDS-18) in and press the gG button to
play-back.
4. Confirm that the oscilloscope waveform is as shown in the figure
below. (eye pattern)
A good eye pattern means that the diamond shape ( ) in the
center of the waveform can be clearly distinguished.
+
–
s
Checking Location:
– CD BOARD (Side B) –
VOLT/DIV: 200 m
TIME/DIV: 500 ns
level:
1.2
±
0.1 Vp-p
13
HCD-WZ5
SECTION 4
TEST MODE
[Cold Reset]
• The cold reset clears all data including preset data stored in the
RAM to initial conditions. Execute this mode when returning the
set to the customer.
Procedure:
1. Press three buttons x , EQ EDIT and ?/1 simultaneously.
2. The liquid crystal display does not display any message and the
set is reset.
[MD/VIDEO Function Selection Mode]
•This mode is used to select the function of MD or VIDEO.
Procedure:
1. Press the ?/1 button to turn the set on.
2. Press the MD(VIDEO) and ?/1 buttons simultaneously.
3. The function will change from MD to VIDEO, and "VIDEO" is
displayed.
4. To change change back to MD , repeat the same procedure.
[AM Channel Step 9 kHz/10kHz Selection Mode]
• Either the 9 kHz step or 10 kHz step can be selected for the AM
channel step.
Procedure:
1. Set the function to AM.
2. Turn off the main power.
3. While depressing the x button, press the ?/1 button to turn
on the main power.
4. The channel step is changed over.
* For E model only
[CD Ship Mode (without Cold Reset)]
•This mode moves the optical pick-up to the position durable to
vibration. Use this mode when returning the set to the customer
after repair.
Procedure:
1. Press the ?/1 button to turn the set on.
2. Set the function to CD.
3. Press the x button and the M (Control lever) button
simultaneously.
4. After the "STANDBY" display blinks six times, the message
"LOCK" is displayed on the liquid crystal display, and the CD
ship mode is set.
[CD Ship Mode (without Cold Reset)]
• This mode is used to perform the CD Ship Mode with Cold Reset.
Procedure:
1. Press the ?/1 button to turn the set on.
2. Set the function to CD.
3. Press three buttons x , z START (REC PAUSE) and
.m – simultaneously.
4. After the "STANDBY" display blinks six times, the message
"LOCK" is displayed on the liquid crystal display, and the CD
ship mode is set.
[Disc Tray Lock]
• The disc tray lock function for the antitheft of an demonstration
disc in the store is equipped.
Setting Procedure :
1. Press the ?/1 button to turn the set on.
2. Set the function to CD.
3. Press two buttons of x and Z simultaneously for five seconds.
4. The message “LOCKED” is displayed and the tray is locked.
Releasing Procedure :
1. Press two buttons of x and Z simultaneously for five seconds
again.
2. The message “UNLOCKED” is displayed and the tray is
unlocked.
Note :When “LOCKED” is displayed, the tray lock is not released
by turning power on/off with the ?/1 button.
[GC Test Mode]
•This mode is used to check the software version, key board, VACS
level, liquid crystal display and LEDs.
Procedure:
1. Press three buttons x , z START (REC PAUSE) and
TUNER/BAND simultaneously.
2. Segments of the liquid crystal display and LEDs are all turned
on.
3. To enter the software version display mode, press the .m –
button. The model name and destination are displayed.
4. Each time the .m – button is pressed, the display changes
in the following order. MC, GC, CD, CDD, CDMA, CDMB,
BDA, BDB, ST, TA, TM, TC and MD. Each time the + M >
button is pressed, the contents of the version display change.
5. Press the hH button, and the key check mode is activated.
6. In the key check mode, "K 0 V 0" is displayed. Each time a
button is pressed, "K 0" value increases. However, once a button
is pressed, it is no longer taken into account. "V 0" value
increases like 1, 2, 3 ... if rotaing the VOLUME knob clockwise,
or it decreases like 0, 9, 8 ... if rotating couterclockwise.
7. To exit from this mode, press three buttons in the same manner
as step 1, or disconnect the power cord.
•VACS Level Display Mode
Procedure:
1. Press three buttons x , z START (REC PAUSE) and
TUNER/BAND simultaneously.
2. Press the X button. The VACS level "VACS 0+0" is displayed.
3. To exit from this mode, press three buttons in the same manner
as step 1, or disconnect the power cord.
• Display Check
Procedure:
1. Press three buttons x , z START (REC PAUSE) and
TUNER/BAND simultaneously.
2. Press the x button and the display changes. Each time the x
button is pressed, the pattern of segments changes.
3. To exit from this mode, press three buttons in the same manner
as step 1, or disconnect the power cord.
14
[VACS ON/OFF Mode]
•This mode is used to switch on and off the VACS (Variable
Attenuation Control System).
Procedure:
1. Press the ?/1 button to turn the set on.
2. To enter the test mode, press three buttons x , z START
(REC PAUSE) and MOVIE MODE simultaneously.
3. The message "VACS OFF" or "VACS ON" appears.
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