Sony HCD-WZ88D Service Manual

HCD-WZ88D

SERVICE MANUAL

Ver. 1.1 2005.11

HCD-WZ88D is the Tuner, and the CD/DVD
player section in MHC-WZ88D.

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.

** Manufactured under license from Digital Theater Systems, Inc.

“DTS” and “DTS Digital Surround” are trademarks of
Digital Theater Systems, Inc.

DVD
Section

SPECIFICATIONS

E Model

Australian Model

Model Name Using Similar Mechanism NEW
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 tun er

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.

9-879-693-02

2005K16-1
© 2005.11

CD/DVD PLAYER TUNER

Sony Corporation

Home Audio Division
Published by Sony Engineering Corporation

HCD-WZ88D

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.

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 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 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.

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 (Side A) –....... 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. EXPLODED VIEWS

6-1. Front Panel Section ......................................................... 54

6-2. Chassis Section................................................................ 55

6-3. Dvd Mechanism Section (CDM85B-DVBU102)............ 56

7. ELECTRICAL PARTS LIST .................................. 58

2

SECTION 1

SERVICING NOTES

HCD-WZ88D

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.
The CLASS 1 LASER
PRODUCT MARKING is
located on the rear exterior.

The following caution label is located inside the apparatus.

MODEL IDENTIFICATION
– Rear Panel –

PARTS No.

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[]

•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.

CAUTION

Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure.

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.

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 in
the on-screen display and the front panel
display. In this case, check the following table.

First 3
characters of
the service
number

C 13 The disc is dirty.

C 31 The disc is not inserted correctly.

E XX
(XX is a number)

Cause and corrective action

t Clea n the disc with a soft cloth

t Restart the system, then

re-insert the disc correctly.

To prevent a malfunction, the
system has performed the self­diagnosis function.

t Contact your nearest Sony

dealer or local authorized
Sony service facility and give
the 5-character service
number.
Example: E 61 10

3

HCD-WZ88D

• DMB10 board service position

DMB10 board

Remove the DMB10 board once.
Then create the service position.

VIDEO BOARD

Extension cable :
J-2501-102-A
(1mm / 13pin / L300)

CN801

CN101

MAIN BOARD

DMB10 board

In such a case, the
extension cables
became necessary.

4CH-VOL BOARD

CN303

Extension cable :
J-2501-244-A
(1mm / 21pin / L300)

4

• REGULATOR board service position

REGULATOR board

HCD-WZ88D

MAIN

board

MAIN BOARD

REGULATOR BOARD

5

HCD-WZ88D

Illustrati

List of button locations and reference pages

SECTION 2

GENERAL

This section is extracted
from instruction manual.

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.

Main unit

ALPHABETICAL ORDER

A – L

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)

DVD player/Tuner

M – Z

MIC 1 m wa (67, 71, 84)
MIC 2 m ql (67, 71, 84)
MIC LEVEL
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
TUNER/BAND

63)
VIDEO/SAT
VOLUME 9 (56, 57, 73, 84)

w; (61, 64, 71, 72, 75)

TAPE A/B w; (61, 64, 71, 72, 75)

Name of button/part Reference page

qk (67, 68, 71, 84)

w; (58, 59, 60,

w; (63, 81)

on number

r

RR

BUTTON DESCRIPTIONS

?/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)

Z 8 (15, 18, 86)

Setting the clock

1

Press ?/1 to turn on the system.

2

Press TIMER MENU.

The hour indication flashes in the display.

3

Press V or v repeatedly to set the
hour.

4

Press ENTER.

The minute indication flashes in the
display.

5

Press V or v repeatedly to set the
minute.

6

Press ENTER.

The clock starts functioning.

To adjust the clock

1

Press TIMER MENU.

2

Press V or v repeatedly to select “CLOCK
SET?”, then press ENTER.

The hour indication flashes in the display.

3

Do the same procedure as steps 3 to 6
above.

Notes

The clock s ettings are canceled w hen you d isconnect

the power cord or if a power failure occurs.

You cannot set the clock in Power Saving Mode

6

Remote control

HCD-WZ88D

ALPHABETICAL ORDER

A – P

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
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

60)
PICTURE NAVI wf (31, 33, 42)
PRESET –/+ qa (58–60)

R – Z

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
TV &/1 wk (11)
VOLUME +/– qk

-/-- 9 (11)
10/0 8

1)

2)

(11, 16, 19, 25, 27, 41, 47–51,

2)

(11)

2)

(56, 57, 73, 84)

SYMBOLS

?/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

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

40–42, 46–51, 56, 57, 65, 68–71, 73–75, 89)

O RETURN 0 (27, 31, 37, 42)

DISPLAY 0 (15, 21–26, 33, 34, 40–42, 46,
48, 50, 56, 68–71, 79, 89, 97)

2)

(19–21, 27, 30, 33, 36–39, 49, 52,

0 (13–15, 21–23, 25, 26, 30–35, 37,

1

2

3

4

5

6

7

8

wl

wj

wg
wd

wa

wk

wh

wf
ws

w;

9

ql

q;

qk

qj

qh

qg

qs

qa

qd

qf

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 t he tactile dot as
a reference when operating the system.

7

HCD-WZ88D

Getting Started

Hooking up the system

Do the following procedures 1 to 7 to hook up your system using the supplied cords and accesso ries.

AM loop antenna

FM lead antenna

To front speaker (right)
To surround speaker (right)
To surround speaker (left)

[HCD-WZ88D] [DXA-WZ88D]

DVD player/Tuner Amplifier/Tape deck

Preparation

Place the components as shown below.

Amplifier/
Tape deck

DVD player/
Tuner

To center
speaker

5

To front speaker
(left)

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. Otherwise the system will no t operate
correctly.

1 Connect the system control cables

from the DVD player/Tuner component
to the appropriate (same numbered)
SYSTEM CONTROL connectors on the
Amplifier/Tape deck component.

8

2 Connect 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.

Amplifier/Tape deck

3-1. DISASSEMBLY FLOW

•This set can be disassembled in the order shown below.

SET

3-2.CASE
(Page 10)

3-3.FRONT PANEL ASSY

(Page 10)

3-4.

VR BOARD, FL BOARD,

FUNCTION SW BOARD

(Page 11) (Page 11) (Page 12)

3-5.4CH-VOL BOARD,

SECTION 3

DISASSEMBLY

VIDEO BOARD

(CDM85-DVBU102)

HCD-WZ88D

3-7.DVD MECHANISM

3-6.MAIN BOARD,

REGULATOR BOARD,
MIC BOARD

(Page 12)

3-9.TRAY
(Page 13) (Page 13)

3-10.MS-203 BOARD 3-11.BASE UNIT

(Page 14) (Page 15)

3-8.DMB10 BOARD

3-12.OPTICAL PICK-UP

(KHM-310CAA/C2NP)

(Page 15)

9

HCD-WZ88D

Note: Follow the disassembly procedure in the numerical order given.

3-2. CASE

4

case

3

two screws

(case 3 TP2)

2

two screws

(case 3 TP2)

1

three screws
(+BVTP 3

×

8)

3-3. FRONT PANEL ASSY

5

wire (flat type)
(23 core) (CN109)

0

front panel

section

2

screw
(+BVTP 3 × 8)

3

earth wire

4

connector

(CN109)

9

7

earth wire

7

6

claw

screw
(+BV 3)

1

screw
(+BVTP 3 × 8)

10

8

three screws
(+BV 3 × 6)

3-4. VR BOARD, FL BOARD, FUNCTION SW BOARD

qf

two screws
(+BVTP 2.6 × 8)

7

bracket
(HOLDER-L)

qj

nine screws
(+BVTP 2.6 × 8)

6

screw
(2.6 × 10)

qa

bracket (FL)

0

screw
(2.6 × 10)

9

bracket
(HOLDER-R)

5

knob (MIC)

3

8

screw

qd

bracket (FL)

HCD-WZ88D

two screws
(+BVTP 2.6 × 8)

4

VR board

qg

two screws
(+BVTP 2.6 × 8)

qs

screw
(2.6 × 10)

1

knob (vol)

2

nut

3-5. 4CH-VOL BOARD, VIDEO BOARD

1

9

connector

(CN304)

6

wire (flat type)
(19 core)

wire (flat type)
(23 core)

7

two screws
(+BVTP 3 × 8)

8

4CH-VOL board

2

wire (flat type)
(9 core)

5

(CN302)

cord

qk

qd

(CN107)

connector

qh

FL board

FUNCTION SW board

cord

connector

3

six screws
(+BVTP 3

×

8)

4

two screws
(+BVTP 3 × 8)

0

connector

(CN800)

qs

qa

wire (flat type)
(13 core)

qf

cord

(CN503,CN504)

VIDEO

board

connector

qg

back panel

11

HCD-WZ88D

3-6. MAIN BOARD, REGULATOR BOARD, MIC BOARD

1

wire (flat type)
(12 core) (CN101)

5

2

screw
(+BVTP 3

8

two

(+BVTP 3

screws

MAIN board

×

8)

×

8)

4

two claws

6

connector

(CN506)

3

four screws
(+BVTP 3

7

REGULATOR board

×

8)

0

MIC board

9

connector

(CN701)

3-7. DVD MECHANISM (CDM85-DVBU102)

6

DVD mechanism

(CDM85-DVBU102)

1

wire (flat type)
(6 core) (CN202)

5

wire (flat type)
(13 core) (CN106)

2

three screws
(+BVTP 3 × 8)

3

connector

(CN201)

4

wire (flat type)
(24 core) (CN101)

12

3-8. DMB10 BOARD

8

DMB10 board

7

four screws
(+BVTP 3

HCD-WZ88D

2

four screws (+BV)

6

bracket (CDM)

3

wire (flat type)
(20 core) (CN302)

×

8)

1

screw
(+BVTP 3

×

8)

3-9 TRAY

1

5

wire (flat type)
(13 core) (CN106)

Move the Chuck cam
in the direction of the arrow.

2

bottom side

two claws

3

4

wire (flat type)
(12 core) (CN301)

4

5

tray

13

HCD-WZ88D

3-10. MS-203 BOARD

2

chuck cam

3

belt

6

DC motor

1

two claws

7

MS-203 board

5

three claws

4

screw

(M 1.7

×

2.5)

14

3-11. BASE UNIT

2

chuck cam

1

two claws

3

two claws

HCD-WZ88D

3-12 OPTICAL PICK-UP (KHM-310CAA/C2NP)

3

four insulator screws

4

CDM85-DVBU102

2

loading base

4

base unit (DVBU102)

5

two insulators

bu holder

1

two claws

6

two insulators

7

optical pick-up

(KHM-310CAA/C2NP)

15

HCD-WZ88D

SECTION 4

TEST MODE

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.

[P ANEL TEST 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 x button, [REC PAUSE/START] button and [DSGX]
button simultaneously.

2. All LEDs and segments in fluorescent indicator tube are lighted
up.

3. When you want to enter to the software version display mode,
press .m button. Each time .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
the software creation appears on the fluorescent indicator tube.
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 H button, 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 X button 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 x button 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 x button again would
cause all segments lights off. Pressing x button 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.

[COMMON TEST MODE]

• This mode is used to check operations of the respective sections
of Amplifier, T uner, and Tape.

Procedure:

• To enter Common Test Mode

1. Press ?/1 button to turn on the system.

2. Press x button, [REC PAUSE/START] button and
[EQ SELECT] button simultaneously.

3. The T APE A and B indicators flash on the fluorescent indicator
tube. The function is changed to VIDEO.

• Check of Amplifier

1. Press [EQ SELECT] button repeatedly until the message “GEQ
MAX” appears on the fluorescent indicator tube. GEQ
increases to its maximum.

2. Press [EQ SELECT] button repeatedly until the message “GEQ
MIN” appears on the fluorescent indicator tube. GEQ
decreases to its minimum.

3. Press [EQ SELECT] button repeatedly 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 is pressed during recording in function, ALC (Automatic
Logic Control) is turned on.

2. During recording, press .m will stop the recording
and the function is changed to T APE B and re wind 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.

• AMS T est 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 tape AMS­110A or AMS-120 to selected tape deck.

3. Press the [CD SYNC] button to enter the AMS test mode.

4. After the test tape is rewind to the beginning of the tape, the
AMS+ is checked, and the mechanism is shut off after detecting
the AMS signal twice.

5. Then the AMS- 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 Common Test mode

1. To release from this mode, press ?/1 button.

2. The cold reset is enforced at the same time.

16

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 ?/1 button to turn on the system.

2. Press x button, [CD SYNC] button, and ?/1 button
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 ?/1 button to turn on the system.

2. Press x button, [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 Saudi Arabian
and Russian models.

Procedure:

1. Press ?/1 button to turn on the system.

2. Press [TUNER/BAND] button repeatedly to select the “AM”.

3. Press ?/1 button to turn off the system .

4. Press x button and ?/1 button 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 ?/1 button to turn on the system.

2. Select DVD function.

3. Press x button, [DVD] button and ?/1 button simultaneously.
The system will power off automatically.

4. After the “STANDBY” blinking display f inishes, the message
“MECHA LOCK” appears on the fluorescent indicator tube
and the DVD ship mode is set.

[DVD TRAY LOCK MODE]

• This mode let you lock the disc tray. When this mode is
activated, the disc tray will not open when A button is pressed.
The message “LOCKED” appears on the fluorescent indicator
tube.

[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 ?/1 button to turn on the system.

2. Select DVD function.

3. Press ?/1 button to turn off the system.

4. Press X button and ?/1 button simultaneously. The system
will power on automatically.
The message “COLOR P AL” or “COLOR NTSC” appears on
the fluorescent indicator tube.

[VIDEO/SAT SWITCHING]

• This mode let you switch from VIDEO to SA T and vice-versa.

Procedure:

1. Press ?/1 button to turn on the system.

2. Select VIDEO function.

3. Press [VIDEO/SAT] button and ?/1 button simultaneously.
The function will change to SA T . Press the same b uttons 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 ?/1 button to turn on the system.

2. Press x button, [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.

[AUT O TUNING MODE]

• This mode let you tuned in any radio station automatically
without using the remote commander.

Procedure:

1. Press ?/1 button to turn on the system.

2. Press [TUNER/BAND] button repeatedly to select the “FM” or
“AM”.

3. Press x button 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.

Procedure:

1. Press ?/1 button to turn on the system.

2. Select DVD function.

3. Press x button and A button simultaneously and hold down
until the message “LOCKED” or “UNLOCKED” appears on
the fluorescent indicator tube (around 5 seconds).

17

HCD-WZ88D

[SELECTOR MUTE RELEASE MODE]

• This mode let you output the audio signal during 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 ?/1 button to turn on the system.

2. Press x button, [REC PAUSE/START] button and
[VIDEO/SAT] button simultaneously. The message “SEL
MUTE OFF” appears on the fluorescent indicator tube.

3. Insert a microphone into the microphone jack. The audio signal
is outputted.

• To release from this mode

Press ?/1 button 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 ?/1 button to turn on the system.

2. Select DVD function.

3. Press x button and A button simultaneously and then turn
the [VOLUME+] knob clockwise.

4. The message “SERVICE IN” appears on the fluorescent
indicator tube and the T op Menu of Remocon Diagnosis Menu
appears on the on-screen display on the TV. The model name
and revision number is displayed at the bottom of 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

5. To execute each function, press its number by using numeric
button on the remote commander.

6. To release from this mode, press ?/1 button to turn off the
system.

2. Select “3. Manual Adjustment” by pressing the 3 “R” button
on the remote commander. The following screen appears on
the on-screen display.

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

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:

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

5. Convert data from hexadecimal to decimal by using con version
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 ?/1 button to turn off the system.

• Check Emergency History

To check the emergency history, please follow the following
procedure.

• 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.

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

18

1. From the T op 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 on­screen display.

Emg. History Check

Laser Hours CD 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

0

Return to Top Menu

DVD 999h 59min

Prev

Prev Page

HCD-WZ88D

2. Y ou can check the total time when the laser is turned on during
playback of DVD and CD from the abov e 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

Example of Error code

1. 01 05 04 04 00 92 46 00
00 00 00 00 00 00 23 45

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.

Example of Error code

1. 01 05 04 04 00 92 46 00
00 00 00 00 00 00 23 45

(c) Time of error code
This is the laser time when an error occurred.

Example of Error code

1. 01 05 04 04 00 92 46 00
00 00 00 00 00 00 23 45

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.

Emg. History Check

Laser Hours CD 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

0

Return to Top Menu

DVD 0h 0min

Prev

Prev Page

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.

Emg. History Check

Laser Hours CD 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

0

Return to Top Menu

DVD 999h 59min

Prev

Prev Page

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 on­screen display.

Version information

Firm (Main) : Ver. xxxxx
Firm (Sub) : xxxxx
RISC : xxxxx
8032 : xxxxx
Audio DSP : xxxxx
Servo DSP : xxxxx

0

Return to Top Menu

To return to the Top Menu of Remocon Dia gnosis Menu, press
0 “R” on the remote commander.

19

HCD-WZ88D

B

These are omitted.

CQE

B

These are omitted.

CE

Q

SECTION 5

DIAGRAMS

THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)

For Schematic Diagrams.
Note:

• All capacitors are in µF unless otherwise noted. (p: pF)
50 WV or less are not indicated except f or electrolytics and
tantalums.

• All resistors are in Ω and 1/
specified.

• f : internal component.

• 2 : nonflammable resistor.

• 5 : fusible resistor.

• C : panel designation.
Note: The components identified by mark 0 or dotted

line with mark 0 are critical for safety.
Replace only with part number specified.

✩ IC103 (EEP ROM) can not be replaced individually.

Replace it with DMB10 board assembly for service

• A : B+ Line.

• B : B– Line.

• H : adjusment for repair.

•Power voltage is fed with DXA-WZ88D from external con­nector (SYSTEM CONTROL 1, 2).

•Voltages and waveforms are dc with respect to ground un­der no-signal (detuned) conditions.

•Voltages are taken with VOM (Input impedance 10 MΩ).
Voltage v ariations ma y be noted due to normal production
tolerances.

•Waveforms are taken with a oscilloscope.
Voltage v ariations ma y 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.

4

W or less unless otherwise

For Printed Wiring Boards.
Note:

• X : parts extracted from the component side.

• Y : parts extracted from the conductor side.

•

• Indication of transistor.

: Pattern from the side which enables seeing.

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.

C
Q

B

E

These are omitted.

20

HCD-WZ88D

• Circuit Boards Location

DMB10 board

FUNCTION SW

board

MEMO

4CH-VOL board

VIDEO board

FL board

MAIN board

VR board

MIC board

MS-203 board

REGULATOR board

HCD-WZ88D

2121

HCD-WZ88D

5-1. BLOCK DIAGRAM – RF/SERVO SECTION –

RFMON

RF

DETECTOR

OPTICAL PICK-UP

BLOCK

(KHM 310 CAA/C2NP)

VC

LASER
DIODE

(FOR CD)

LASER
DIODE

(FOR DVD)

2AXIS
DEVICE
FOCUS/

TRACKING

COIL

CD LD

PD

DVD LD

VR650

VR780

VCC

FCS+
FCS–

TRK+
TRK–

COADING MOTOR

A
B
C
D

F
E

(SPINDLE)

M203

C

D

Q102 (1/2)

AUTOMATIC POWER

CONTROL (FOR CD)

Q102 (2/2)
AUTOMATIC POWER
CONTROL (FOR DVD)

Q101, Q103

VOLUME CONTROL

M2

MM

(SLED)

M1

MM

MM

S001

IC107

DVDRFIP

6

OSP

252 253

DVDA

2

DVDB

3

DVDC

4

DVDD

B

A

SW+3.3V

+3.3V

SP+
SP–

5

19

TPI

18
A
B
D
C

SL–
SL+

TNI

8

NA

9

NB

10

MD

11

MC

176

LI M SW

V20

29

23

LD01

20

MD12
MD11

21

LD02

22

MSW

187

FOCUS/TRACKING COIL DRIVER,
SPINDLE, SLED MOTOR DRIVER

42
41

36 48
37 1

35 3
34 4

32
31
30
29

27
28

47
46

24
25

IC201

BUFFER

FOCUS COIL

DRIVE

TRACKING COIL

DRIVE

SLED MOTOR

DRIVE

SPINDLE MOTOR

DRIVE

BUFFER

LOADING MOTOR

DRIVER

TSD

OSN

43

10
13

40

45

19
20
22
21

TROPENPWM

15

FWD

16

REV

17

IC102 (1/3)

CD/DVD RF AMP,

FOCUS/TRACKING ERROR AMP

DVD SYSTEM PROCESSOR

DIGITAL SERVO PROCESSOR

VREF0

FOO

TRO

FMO

DMO

SW+3.3V

Q2001

VOLTAGE DETECT

OCSW
CKSW

VREF0

FMO
FOO

DMO
TRO

38

FMO

42

FOO

37

DND

41

TRO

V REFO

30

246

V REFO

40

IOPMON

47

SPFG

184

MUTE123

183

MUTE

181

TSDM

TROPENPWM

39

FWD

186

REV

185

OCSW

177

CKSW

179

V2REF0

RXD

TXD

XTALO

XTALI

FED
TEO

RFLVL

PRST

IFCK

MREQ
IFSDO

IFSDI

XIFCS

MIC/VSYNC

IFBSY

KRMOD/HSYNC

28
106
107

228
229

31

32

26

110

99

114

98
101
100

205

105

207

X101

27MH

Z

RF
FE
TE
PI

V2REF0
RXD
TXD

38

MTK_RESET

MTK_CLK

33

35

REQ

32

MTK_SOD

31

SID

27

XIFCK

26

MIC_STATUS

28

IFBUSY

24

KRMOB

87

OPEN_SW

for TEST

for TEST

VIDEO_MUTE

IC401 (1/3)

SYSTEM

CONTROLLER

RF +3.3V

+3.3V

+1.8V

37

4 1

4 5

3 1

VMUTE

SECTION

(Page 23)

• Signal Path

+3.3V REG

IC105

+3.3V REG

IC106

+1.8V REG

A

VIDEO

SW +5.5V

: CD PLAY
: DVD PLAY
:SACD PLAY

HCD-WZ88D

2222

– VIDEO SECTION –

YUV1

YUV2

WODE

YUV3

YUV4

YUV5

YUV6

HCD-WZ88D

IC801

VIDEO AMP, 75Ω DRIVER

Y

194

C

196

171

V

198

200

202

203

Y/G

Cb

Cr

Q800

WIDE SWITCH

10

12

14

6

2

9

4

YIN

CIN

I/P

CVBSIN

CYIN

CBIN

CRIN

MUTE1

3

CVBSOUT

CYOUT

CBOUT

CROUT

MUTE2

13

YOUT

COUT

21

26

21

43

J801

S VIDEO OUT

• Signal Path

VOUT

23

J802

VIDEO OUT

: VIDEO
: Y

CYOUT

20

CBOUT

18

CROUT

16

P

P

Y

B / CB

R / CR

J803

COMPONENT

VIDEO OUT

VMUTE

: CHROMA
: COMPONENT VIDEO

RF/SERVO

A

SECTION
(Page 22)

SCL

SDA

B

AUDIO
SECTION
(Page 24)

SCL

102

103

6 5

SCL

IC103

EEPROM

SDA

SDA

IC102(2/3)

DVD SYSTEM PROCESSOR

AD0 – AD7

81-84,86-88,91

HD0 – HD7 A0 – A21

DATA & ADDRESS BUS

DATA & ADDRESS BUS

HD0 – HD7

29,31,33,35,38,40,42,44 25-16,10-1, 48

DQ0 – DQ7

HIGHA0-7
IOA0-7, IOA18-IOA20
A16, A17

53-61, 67-72, 74-76,

78, 89, 92, 93

A0

A0 – A19DQ15/A-1

IC101

FLASH ROM

A1-A21

XRD

XROMCS

2645

28OE11

CE

IOCS

77

79

XRD

XROMCS

XWR

WE

IOWR

IOUE

66

XWR

2,4,5,7,8,10,11,13,42,44,45,47,48,50,51,53

RD0 – RD15

125-123, 121, 120, 118,

117, 115, 135, 133-128, 126

RD0 – RD15

RA0 – RA11

146, 147, 149-151,

158-160, 162, 164-166

22-26,

29-35

RA0 – RA11

IC104

SDRAM

RCLK

RCS

RWE

MRAS

BA0

BA1

143

20

142

145 156 113 137 157

38

19

21

BS0

BS1

DRCLK

138

RCS

CAS

140

139

16

18

17

CAS

RAS

RWE

MDQM0

15

DQM0

MDQM1

39

DQM1

CKE

37

DRCKE

HCD-WZ88D

2323