Sony HCD-WZ88D User manual

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.
** Manufacturedunderlicense 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 0OR DOTTED LINE
WITH MARK 0ON 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 (SideA) – ....... 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. EXPLODEDVIEWS
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
otherthan those specifiedherein mayresultin 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 HANDLINGTHE 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.

5
HCD-WZ88D
• REGULATOR board service position
MAIN board
MAIN BOARD
REGULATOR BOARD
REGULATOR board

6
HCD-WZ88D SECTION 2
GENERAL This section is extracted
from instruction manual.
Main unit
CD SYNC qg (62, 63, 89)
DIRECTION 2(61, 63, 71, 75)
Disc tray 6(15, 18, 30, 31, 33,
37)
DISPLAY 4(76)
Display window 5(11)
DSGX q; (64)
DVD w; (14, 17, 19, 62, 63, 67,
87)
ECHO LEVEL qh (67, 68)
EQ SELECT qs (66, 67)
IR (receptor) 7(85)
MIC 1 mwa (67, 71, 84)
MIC 2 mql (67, 71, 84)
MIC LEVEL qk (67, 68, 71, 84)
PHONES (headphone jack) qf
(84)
PRESET +/– qj (58)
PROGRESSIVE 2(10, 17, 53,
81, 87)
REC PAUSE/START qd (62, 63,
71)
SA-CD/CD 3(26, 62)
SOUND FIELD qa (65)
TAPE A/B w; (61, 64, 71, 72, 75)
TUNER/BAND w; (58, 59, 60,
63)
VIDEO/SAT w; (63, 81)
VOLUME 9(56, 57, 73, 84)
?/1 (power) 1(11, 59, 81, 89)
X(pause) qj (11)
hH (play) qj (19–21, 27, 30,
33, 36–39, 49, 52, 61–64, 72,
75, 84, 86)
x(stop) qj (59, 62–64, 71, 72,
89)
M> (fast forward/go
forward)qj (19, 27, 30,31, 38,
61, 62, 64–67)
.m (rewind/go backuard)
qj (19, 27, 30, 31, 38, 61, 62,
64–67)
Z8(15, 18, 86)
ALPHABETICAL ORDER
A – L M – Z
BUTTON DESCRIPTIONS
DVD player/Tuner
List of button locations and reference pages
How to use this page
Use these pages to find the location of buttons and
other parts of the unit and the remote that are
mentioned in the text.
Ill
us
t
ra
ti
on num
b
er
r
TAPE A/B w; (61, 64, 71, 72, 75)
RR
Name of button/part Reference page
1Press ?/1 to turn on the system.
2Press TIMER MENU.
The hour indication flashes in the display.
3Press Vor vrepeatedly to set the
hour.
4Press ENTER.
The minute indication flashes in the
display.
5Press Vor vrepeatedly to set the
minute.
6Press ENTER.
The clock starts functioning.
To adjust the clock
1Press TIMER MENU.
2Press Vor vrepeatedly to select “CLOCK
SET?”, then press ENTER.
The hour indication flashes in the display.
3Do the same procedure as steps 3 to 6
above.
Notes
The clock settings are canceled when you disconnect
the power cord or if a power failure occurs.
You cannot set the clock in Power Saving Mode
Setting the clock

7
HCD-WZ88D
Remote control
ADVANCE qj (19)
ALBUM +/– ql (16, 19)
ANGLE w; (45)
AUDIO ws (43, 44, 82)
CLEAR 9(16, 22, 24, 41, 55)
DISC SKIP wj
1)
DISPLAY 4(76)
ENTER q; (13–15, 19, 21–27, 31–35, 37, 41, 42,
46–51, 55, 56–60, 68–71, 73–75, 89)
FM MODE wd (60, 88)
FUNCTION +/– wh (14, 17, 19, 58, 60, 61, 67, 75, 87)
KARAOKE MODE 6(68, 82, 87)
KARAOKE PON 7(68)
KEY CONTROL #/2 5(69)
MENU 0(25, 30–33, 37, 58, 59)
Numeric Buttons 8
2)
(11, 16, 19, 25, 27, 41, 47–51,
60)
PICTURE NAVI wf (31, 33, 42)
PRESET –/+ qa (58–60)
REPEAT wd (24)
REPLAY qj (19)
SLEEP 2(16, 73)
SLOW / qs (39)
SOUND FIELD wg (65, 66, 82)
STEP c/C qj (39)
SUBTITLE wa (45)
THEATRE SYNC wl (16)
TIMER MENU 1(13, 73, 74, 75)
TIME/TEXT 3(76, 77, 78)
TOP MENU 0(25)
TUNING +/– qs (58, 60)
TV qd (11)
TV CH +/– qa (11)
TV/VIDEO 2(11)
TV VOL +/– qk
2)
(11)
TV &/1 wk (11)
VOLUME +/– qk
2)
(56, 57, 73, 84)
-/-- 9(11)
10/0 8
?/1 (power) wk (11, 13, 14, 74, 75, 84)
x(stop) qg (19, 20, 27, 30–33, 37, 46, 59, 61, 75, 86)
X(pause) qf (19, 61)
H (play) qh
2)
(19–21, 27, 30, 33, 36–39, 49, 52,
61, 62, 75, 84, 86)
.(go backward) qa (19, 27, 30, 31, 38, 62,
64)
>(go forward) qa (16, 19, 27, 30, 31, 38, 62,
64)
m(rewind) qs (38, 61)
M(fast forward) qs (38, 61)
V/v/B/b 0(13–15, 21–23, 25, 26, 30–35, 37,
40–42, 46–51, 56, 57, 65, 68–71, 73–75, 89)
ORETURN 0(27, 31, 37, 42)
DISPLAY 0(15, 21–26, 33, 34, 40–42, 46,
48, 50, 56, 68–71, 79, 89, 97)
1)
This button is not available for this model.
2)
The numeric button 5, TV VOL +, VOLUME + and
H buttons have a tactile dot. Use the tactile dot as
a reference when operating the system.
ALPHABETICAL ORDER
A – P
R – Z
SYMBOLS
7
5
q;
qg
qh
qj
qk
w;
ws
wd
wg
wh
wj
wk
wl
qf
qd
qs
qa
9
8
6
43
1
2
ql
wa
wf

8
HCD-WZ88D
Do the following procedures 1to 7to hook up your system using the supplied cords and accessories.
Preparation
Place the components as shown below.
1Connect the system control cables
from the DVD player/Tuner component
to the appropriate (same numbered)
SYSTEM CONTROL connectors on the
Amplifier/Tape deck component.
Note
The system control cables are used to send audio and
electrical signals between the components for
interlinked operation.
Be sure to insert the connector horizontally until it
clicks into place. Otherwisethe system will not operate
correctly.
2Connect the speakers.
Be sure to match the appropriate speaker
cords from the speaker terminals to the
corresponding SPEAKER terminals on the
Amplifier/Tape deck component as shown
below.
Getting Started
Hooking up the system
5
AM loop antenna
To front speaker (right)
Tofront speaker
(left)
FM lead antenna DVD player/Tuner Amplifier/Tape deck
To surround speaker (right)
To surround speaker (left)
To center
speaker
Amplifier/
Tape deck DVD player/ Tuner
Amplifier/Tape deck
[HCD-WZ88D] [DXA-WZ88D]

9
HCD-WZ88D
SECTION 3
DISASSEMBLY
3-1. DISASSEMBLY FLOW
•This set can be disassembled in the order shown below.
3-10.MS-203 BOARD 3-11.BASE UNIT
3-8.DMB10 BOARD
3-3.FRONT PANEL ASSY
(Page 10)
3-2.CASE
(Page 10)
SET
3-4.
VR BOARD, FL BOARD,
FUNCTION SW BOARD
3-5.4CH-VOL BOARD,
VIDEO BOARD
3-6.MAIN BOARD,
REGULATOR BOARD,
MIC BOARD
3-7.DVD MECHANISM
(CDM85-DVBU102)
3-9.TRAY
3-12.OPTICAL PICK-UP
(KHM-310CAA/C2NP)
(Page 11) (Page 11) (Page 12)
(Page 13) (Page 13)
(Page 14) (Page 15)
(Page 15)
(Page 12)

10
HCD-WZ88D
Note: Follow the disassembly procedure in the numerical order given.
3-2. CASE
3-3. FRONT PANEL ASSY
1 three screws
(+BVTP 3
× 8)
2 two screws
(case 3 TP2)
4 case
3 two screws
(case 3 TP2)
0 front panel
section
4 connector
(CN109)
5 wire (flat type)
(23 core) (CN109)
8 three screws
(+BV 3 × 6)
2 screw
(+BVTP 3 × 8)
1 screw
(+BVTP 3 × 8)
6 screw
(+BV 3)
3 earth wire
7 earth wire
9
7
claw

11
HCD-WZ88D
3-5. 4CH-VOL BOARD,VIDEO BOARD
3-4. VR BOARD, FL BOARD, FUNCTION SW BOARD
7 bracket
(HOLDER-L)
9 bracket
(HOLDER-R)
qf two screws
(+BVTP 2.6 × 8)
3 two screws
(+BVTP 2.6 × 8)
6 screw
(2.6 × 10)
0 screw
(2.6 × 10)
qs screw
(2.6 × 10)
8 screw
qg two screws
(+BVTP 2.6 × 8)
qj nine screws
(+BVTP 2.6 × 8)
4 VR board
5 knob (MIC)
qa bracket (FL)
qd bracket (FL)
qk FUNCTION SW board
qh FL board
1 knob (vol)
2 nut
5 cord connector
(CN302)
qd cord connector
(CN107)
qf cord connector
(CN503,CN504)
9 connector
(CN304)
0 connector
(CN800)
qg back panel
2 wire (flat type)
(9 core)
1 wire (flat type)
(23 core)
6 wire (flat type)
(19 core)
qa wire (flat type)
(13 core)
8 4CH-VOL board
4 two screws
(+BVTP 3 × 8)
7 two screws
(+BVTP 3 × 8)
3 six screws
(+BVTP 3
× 8)
qs VIDEO board

12
HCD-WZ88D
3-6. MAIN BOARD, REGULATOR BOARD, MIC BOARD
3-7. DVD MECHANISM (CDM85-DVBU102)
4 two claws
5 MAIN board
7 REGULATOR board
0 MIC board
6 connector
(CN506)
9 connector
(CN701)
1 wire (flat type)
(12 core) (CN101)
2 screw
(+BVTP 3
× 8)
3 four screws
(+BVTP 3
× 8)
8 two screws
(+BVTP 3
× 8)
1 wire (flat type)
(6 core) (CN202)
5 wire (flat type)
(13 core) (CN106)
4 wire (flat type)
(24 core) (CN101)
2 three screws
(+BVTP 3 × 8)
6 DVD mechanism
(CDM85-DVBU102)
3 connector
(CN201)

13
HCD-WZ88D
3-9 TRAY
3-8. DMB10 BOARD
3 wire (flat type)
(20 core) (CN302)
8 DMB10 board
4 wire (flat type)
(12 core) (CN301)
5 wire (flat type)
(13 core) (CN106)
2 four screws (+BV)
6 bracket (CDM)
1 screw
(+BVTP 3
× 8)
7 four screws
(+BVTP 3
× 8)
4
2
3
two claws
5 tray
1 Move the Chuck cam
in the direction of the arrow.
bottom side

14
HCD-WZ88D
3-10. MS-203 BOARD
1 two claws
5 three claws
7 MS-203 board
6 DC motor
3 belt
2 chuck cam
4 screw
(M 1.7
× 2.5)

15
HCD-WZ88D
3-11. BASE UNIT
3-12 OPTICAL PICK-UP (KHM-310CAA/C2NP)
1 two claws
3 two claws
2 chuck cam
4 base unit (DVBU102)
1 two claws
bu holder
2 loading base
5 two insulators
6 two insulators
3 four insulator screws
4 CDM85-DVBU102
7 optical pick-up
(KHM-310CAA/C2NP)

16
HCD-WZ88D SECTION 4
TEST MODE
[PANELTEST MODE]
•This mode is used to check the fluorescent indicator tube,
LEDs, keys, VOLUME jog, model, destination, software
version and VACS level.
Procedure:
1. Press xbutton, [REC PAUSE/START] button and [DSGX]
button simultaneously.
2. AllLEDs and segmentsin fluorescentindicator tube are lighted
up.
3. When you want to enter to the software version display mode,
press .m button. Eachtime .m button is pressed,
the display changes from tentative model name, software
destination, MC version, SYS version, UI version, DVD
version, ST version, TA version, TM version, TC version in
this order, and returns to the model name display. The model
name for this system is “WDZ5D”.
4. When M> button is pressed while the version numbers
are being displayed except model and destination, the date of
thesoftwarecreation appears on the fluorescentindicatortube.
When M> button is pressed again, the display returns
to the software version display. When .m button is
pressed while the date of the software creation is being
displayed, the date of the software creation is displayed in the
same order of software version display.
5. Press Hbutton, the key check mode is activated.
6. In the key check mode, the fluorescent indicator tube displays
“K 0 V0”.
Each time a button is pressed, “K” value increases. However,
once a button has been pressed, it is no longer taken into
account.
“V” value increases in the manner of 0,1, 2, 3 ... if [VOLUME+]
knob is turned clockwise, or it decreases in the manner of 0,
9, 8,7 ... if [VOLUME--] knob is turned counterclockwise.
7. When Xbutton is pressed after all LEDs and segments in
fluorescent indicator tube light up, the fluorescent indicator
tube displays “VACS A”. A is VACS level which is triggered
by signal level.
8. When xbutton is pressed after all LEDs and segments in
fluorescent indicator tube light up, alternate segments in
fluorescent indicator tube would light up. If you press x
button again, another half of alternate segments in fluorescent
indicator tube would light up. Pressing xbutton again would
cause all segments lights off. Pressing xbutton again would
cause all segments lights up.
9. To release from this mode, press three buttons in the same
manner as step 1, or disconnect the power cord.
Note 1:Regarding the notification symbol “R”
Because the number of the operating buttons of this product are
limited, some operations require use of the operatingbuttons
of the remote commander, When a specific operation requires
use of the operating buttons of the remote commander, “R” is
added to the specific operating procedure in this manual.
Example MENU/NO “R” The MENU/NO button of remote
commander.
Note 2:Incorrect operations may be performed if the test mode is not
entered properly.
In this case, press the ?/1 button to turn the power off, and
retry to enter the test mode.
[COMMONTEST MODE]
•Thismode is used tocheck operations of therespective sections
of Amplifier, Tuner, and Tape.
Procedure:
•To enter Common Test Mode
1. Press ?/1button to turn on the system.
2. Press xbutton, [REC PAUSE/START] button and
[EQ SELECT] button simultaneously.
3. TheTAPEA and B indicators flashon the fluorescent indicator
tube. The function is changed toVIDEO.
•Check of Amplifier
1. Press [EQ SELECT] buttonrepeatedly until the message “GEQ
MAX” appears on the fluorescent indicator tube. GEQ
increases to its maximum.
2. Press [EQ SELECT] buttonrepeatedly until the message “GEQ
MIN” appears on the fluorescent indicator tube. GEQ
decreases to its minimum.
3. Press [EQ SELECT] buttonrepeatedly until the message “GEQ
FLAT” appears on the fluorescent indicator tube. GEQ set to
flat.
4. When the [VOLUME+] knob is turned clockwise even slightly,
the sound volume increases to its maximum and the message
“VOLUME MAX” appears on the fluorescent indicator tube.
5. When the [VOLUME--] knob is turned counterclockwise even
slightly, the sound volume decreases to its minimum and the
message “VOLUME MIN” appears on the fluorescent
indicator tube.
•Tape function
1. When a tape is inserted in Deck B and recording is started, the
function is changed to VIDEO automatically. When [DSGX]
button ispressed during recording infunction,ALC (Automatic
Logic Control) is turned on.
2. During recording, press .m will stop the recording
and the function is changed to TAPE B and rewind the tape in
Deck B until the recording start position and playback of the
tape in Deck B is started. If the [REC PAUSE/ START] button
is pressed for a pause and pressed again to resume recording
during recording time, when the tape is rewind, the tape will
be rewind until the position where the pause is applied.
•AMSTest Mode
1. Select the function “TAPE A” or “TAPE B”.
2. Select Loop or Relay direction mode by pressing the
[PROGRESSIVE/DIRECTION] button. Insert a test tapeAMS-
110A or AMS-120 to selected tape deck.
3. Press the [CD SYNC] button to enter theAMS test mode.
4. After the test tape is rewind to the beginning of the tape, the
AMS+is checked,and the mechanism isshut offafter detecting
the AMS signal twice.
5. Then theAMS- is checked and the mechanism is shut off after
detecting the AMS signal twice.
6. When the check is complete, a message of either OK or NG
appears on the fluorescent indicator tube.
•To release from CommonTest mode
1. To release from this mode, press ?/1button.
2. The cold reset is enforced at the same time.

17
HCD-WZ88D
[COLD RESET]
•The cold reset reset 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 ?/1button to turn on the system.
2. Press xbutton, [CD SYNC] button, and ?/1button
simultaneously.
3. The message “COLD RESET” appears on the fluorescent
indicator tube. Then, the fluorescent indicator tube becomes
blank for a while, and the set is reset.
[VACS ON/OFF]
•This mode is used to switch on and off the VACS (Variable
Attenuation Control System).
Procedure:
1. Press ?/1button to turn on the system.
2. Press xbutton, [REC PAUSE/START] button and
[SOUND FIELD] button simultaneously. The message “VACS
OFF” or “VACS ON” appears on the fluorescent indicator
tube.
[TUNER STEP CHANGE]
•The step interval of AM channels can be toggled between 9
kHz and 10 kHz. This mode is not available for SaudiArabian
and Russian models.
Procedure:
1. Press ?/1button to turn on the system.
2. Press [TUNER/BAND] button repeatedly to select the “AM”.
3. Press ?/1button to turn off the system .
4. Press xbutton and ?/1button simultaneously. The system
will turn on automatically. The message “AM 9k Step” or
“AM 10k Step” appears on the fluorescent indicator tube and
thus the channel step is changed.
[DVD SHIP MODE (WITH MEMORY CLEAR)]
•This mode moves the optical pick-up to the position durable
to vibration and reset all data including preset data stored in
the RAM to initial conditions during next time you plug in
power supply. Use this mode when returning the set to the
customer after repair.
Procedure:
1. Press ?/1button to turn on the system.
2. Select DVD function.
3. Press xbutton, [DVD] buttonand ?/1button simultaneously.
The system will power off automatically.
4. After the “STANDBY” blinking display finishes, the message
“MECHA LOCK” appears on the fluorescent indicator tube
and the DVD ship mode is set.
[DVDTRAY LOCK MODE]
•This mode let you lock the disc tray. When this mode is
activated,the disc tray willnotopen when Abuttonis pressed.
The message “LOCKED” appears on the fluorescent indicator
tube.
Procedure:
1. Press ?/1button to turn on the system.
2. Select DVD function.
3. Press xbutton and Abutton simultaneously and hold down
until the message “LOCKED” or “UNLOCKED” appears on
the fluorescent indicator tube (around 5 seconds).
[DVD COLOR SYSTEM SWITCHING]
•This mode let you change the color system of the video output
from PAL to NTSC or vice-versa. This mode is not available
for Latin American and Russian models.
Procedure:
1. Press ?/1button to turn on the system.
2. Select DVD function.
3. Press ?/1button to turn off the system.
4. Press Xbutton and ?/1button simultaneously. The system
will power on automatically.
The message “COLOR PAL” or “COLOR NTSC” appears on
the fluorescent indicator tube.
[VIDEO/SAT SWITCHING]
•This mode let you switch fromVIDEO to SAT and vice-versa.
Procedure:
1. Press ?/1button to turn on the system.
2. Select VIDEO function.
3. Press [VIDEO/SAT] button and ?/1button simultaneously.
The function will change to SAT. Press the same buttons again
to change from SAT to VIDEO.
[REMOTE COMMANDER DISABLE MODE]
•This mode let you disable the remote commander reception.
When this mode is activated, the system will not response if
the button on the remote commander is pressed.The message
“RM Disable” appears on the fluorescent indicator tube. Use
this mode during aging to avoid disturbance. This mode is
cancelled automatically when the system is turned off.
Procedure:
1. Press ?/1button to turn on the system.
2. Press xbutton, [REC PAUSE/START] button and
[PROGRESSIVE/DIRECTION] button simultaneously. The
message “SIRCS OFF” appears on the fluorescent indicator
tube.
•To release from this mode
Press the same buttons again. The message “SIRCS ON” appears
on the fluorescent indicator tube.
[AUTOTUNING MODE]
•This mode let you tuned in any radio station automatically
without using the remote commander.
Procedure:
1. Press ?/1button to turn on the system.
2. Press [TUNER/BAND] button repeatedly to select the “FM” or
“AM”.
3. Press xbutton and [TUNER/BAND] button simultaneously
and hold down until the “AUTO” lights up in the fluorescent
indicator tube and the frequency indication starts to change.
(around 3 seconds). Scanning stops automatically when a
station is tuned in.

18
HCD-WZ88D
[SELECTOR MUTE RELEASE MODE]
•Thismode let you output the audio signalduring function other
than DVD function when the DVD decoder has been
disconnected. This system cannot output the audio signal in
the normal condition if the DVD decoder is disconnected.
Procedure:
1. Press ?/1button to turn on the system.
2. Press xbutton, [REC PAUSE/START] button and
[VIDEO/SAT] button simultaneously. The message “SEL
MUTE OFF” appears on the fluorescent indicator tube.
3. Inserta microphone into the microphone jack.The audiosignal
is outputted.
•To release from this mode
Press ?/1button to turn off the system.
[DVD SERVICE MODE]
•This mode let you make diagnosis and adjustment easily by
using the remote commander and the TV. The instructions,
diagnostic results, etc. are given on the on-screen display.
Procedure to enter to DVD Service Mode:
1. Press ?/1button to turn on the system.
2. Select DVD function.
3. Press xbutton and Abutton simultaneously and then turn
the [VOLUME+] knob clockwise.
4. The message “SERVICE IN” appears on the fluorescent
indicatortubeand theTop Menu of Remocon Diagnosis Menu
appears on the on-screen display on the TV. The model name
andrevision numberis displayed at the bottom ofthe on-screen
display.
5. To execute each function, press its number by using numeric
button on the remote commander.
6. To release from this mode, press ?/1button to turn off the
system.
•Execute IOP Measurement
In order to execute mirror time adjustment, the following standard
procedures must be followed.
1. From the Top Menu of Remocon Diagnosis Menu, select “2.
Drive Manual Operation” by pressing the 2 “R” button on
the remote commander. The following screen appears on the
on-screen display.
2. Select “3. ManualAdjustment” by pressing the 3 “R” button
on the remote commander. The following screen appears on
the on-screen display.
3. Select “6. Iop:” by pressing 6 “R” button on the remote
commander.
4. Wait until a hexadecimal number appear in the on-screen
display as below:
5. Convertdata from hexadecimalto decimal by using conversion
table.
6. Press RETURN “R” button on the remote commander to
return to previous menu.
7. Press 0 “R” button on the remote commander to return to the
Top Menu of Remocon Diagnosis Menu.
8. Press ?/1button to turn off the system.
•Check Emergency History
To check the emergency history, please follow the following
procedure.
1. From the Top Menu of Remocon Diagnosis Menu, select “3.
Emergency History” by pressing the 3 “R” button on the
remote commander. The following screen appears on the on-
screen display.
Remocon Diagnosis Menu
0. External Chip Check
1. Servo Parameter Check
2. Drive Manual Operation
3. Emergency History
4. Version information
5. Video Level Adjustment
Model Name : WDZ5D-GA
IF-con : Ver. 01.00 (0000)
Syscon : Ver. 1.311
Drive Manual Operation
1. Servo Control
2. Track/Layer Jump
3. Manual Adjustment
4. Tray Aging Mode
5. MIRR time adjust
0. Return to top Menu
Manual Adjust
1. Track Balance Adjust:
2. Track Gain Adjust:
3. Focus Balance Adjust:
4. Focus Gain Adjust:
5. Eg boost Adjust:
6. Iop:
7. TRV. Level:
8. S curve(FE) Level:
9. RFL(PI) Level:
0. MIRR Time:
X x Change Value
RETURN Return to previous menu
Manual Adjust
1. Track Balance Adjust:
2. Track Gain Adjust:
3. Focus Balance Adjust:
4. Focus Gain Adjust:
5. Eg Boost Adjust:
6. Iop: ED:
7. TRV. Level:
8. S curve(FE) Level:
9. RFL(PI) Level:
0. MIRR Time:
X x Change Value
RETURN Return to previous menu
Emg. History Check
Laser Hours CD 999h 59min
DVD 999h 59min
1. 01 05 04 04 00 92 46 00
00 00 00 00 00 00 23 45
2. 02 02 01 01 00 A9 4B 00
00 00 00 00 00 00 23 45
Next Next Page Prev Prev Page
0 Return to Top Menu

19
HCD-WZ88D
2. You can check the total time when the laser is turned on during
playbackof DVDandCD from the above menu.The maximum
time, which can be displayed are 999h 59min.
3. You can check the error code of latest 10 emergency history
from the above menu. To view the previous or next page of
emergency history, press .“R” or .“R” on the
remote commander. The error code consists of
(a) Error Code
The meaning of error code is as below:
01: Communication error (No reply from syscon)
02: Syscon hung up
03: Power OFF request when syscon hung up
19: Thermal shutdown
24: MoveSledHome error
25: Mechanical move error (5 Changer)
26: Mechanical move stack error
30: DC motor adjustment error
31: DPD offset adjustment error
32: TE balance adjustment error
33. TE sensor adjustment error
34. TE loop gain adjustment error
35. FE loop gain adjustment error
36. Bad jitter after adjustment
40. Focus NG
42. Focus layer jump NG
52. Open kick spindle error
51: Spindle stop error
60: Focus on error
61: Seek fail error
62: Read Q data/ID error
70: Lead in data read fail
71: TOC read time out (CD)
80: Can’t buffering
81: Unknown media type
(b) Parameter of error code
This is the detail of error code.
(c) Time of error code
This is the laser time when an error occurred.
To clear the Laser Hour
Press DISPLAY “R” button and then press CLEAR “R” button.
The data for both CD and DVD data are reset.
To clear the Emergency History
Press MENU “R” button and then press CLEAR “R” button.The
error code for all emergency history would be reset.
To return to the Top Menu of Remocon Diagnosis Menu
Press 0 “R” button on the remote commander.
•Check Version Information
To check the version information, please follow the following
procedure.
1. From the Top Menu of Remocon Diagnosis Menu, select “4.
Version Information” by pressing the 4 “R” button on the
remote commander. The following screen appears on the on-
screen display.
To return to the Top Menu of Remocon Diagnosis Menu, press
0 “R” on the remote commander.
Example of Error code
1. 01 05 04 04 00 92 46 00
00 00 00 00 00 00 23 45
Example of Error code
1. 01 05 04 04 00 92 46 00
00 00 00 00 00 00 23 45
Example of Error code
1. 01 05 04 04 00 92 46 00
00 00 00 00 00 00 23 45
Emg. History Check
Laser Hours CD 0h 0min
DVD 0h 0min
1. 01 05 04 04 00 92 46 00
00 00 00 00 00 00 23 45
2. 02 02 01 01 00 A9 4B 00
00 00 00 00 00 00 23 45
Next Next Page Prev Prev Page
0 Return to Top Menu
Emg. History Check
Laser Hours CD 999h 59min
DVD 999h 59min
1. 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
2. 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
Next Next Page Prev Prev Page
0 Return to Top Menu
Version information
Firm (Main) : Ver. xxxxx
Firm (Sub) : xxxxx
RISC : xxxxx
8032 : xxxxx
Audio DSP : xxxxx
Servo DSP : xxxxx
0 Return to Top Menu

20
HCD-WZ88D SECTION 5
DIAGRAMS
For Schematic Diagrams.
Note:
•All capacitors are in µF unless otherwise noted. (p: pF)
50WV or less are not indicated except for electrolytics and
tantalums.
•All resistors are in Ωand 1/4W or less unless otherwise
specified.
•f: internal component.
•2: nonflammable resistor.
•5: fusible resistor.
•C: panel designation.
THIS NOTE IS COMMON FOR PRINTEDWIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
•A: B+ Line.
•B: B– Line.
•H: adjusment for repair.
•Power voltage is fed with DXA-WZ88D from external con-
nector (SYSTEM CONTROL 1, 2).
•Voltages and waveforms are dc with respect to ground un-
der no-signal (detuned) conditions.
•Voltages are taken withVOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production
tolerances.
•Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
no mark : DVD STOP
•Circled numbers refer to waveforms.
•Signal path.
F: AUDIO
f: AUDIO IN
L: VIDEO
j: PB (TAPE)
k: REC (TAPE)
J: CD PLAY
c: DVD PLAY
I: SACD PLAY
d: TUNER
E:Y
a: CHROMA
r: COMPONENT VIDEO
N: MIC
•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.
For PrintedWiring Boards.
Note:
•X: parts extracted from the component side.
•Y: parts extracted from the conductor side.
•: Pattern from the side which enables seeing.
•Indication of transistor.
C
B
These are omitted.
E
Q
Note: The components identified by mark 0or dotted
line with mark 0are critical for safety.
Replace only with part number specified.
Caution:
Pattern face side: Parts on the pattern face side seen from
(SIDE B) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(SIDE A) the parts face are indicated.
B
These are omitted.
C
Q
E
B
These are omitted.
CE
Q
✩IC103 (EEP ROM) can not be replaced individually.
Replace it with DMB10 board assembly for service