Zenith DVD5201 User manual

SERVICE MANUAL

Product Type: DVD Player

Chassis: DVD2

Manual Series: VR166

Manual Part #: 923-03461

Model Line: D

Product Year: 2001

OVERVIEW ........................................................ 5

DISASSEMBLY .................................................... 8

MECHANISM .................................................... 10

ELECTRICAL..................................................... 14

PARTS ............................................................ 28

DIAGRAMS ...................................................... 37

SCHEMATICS .................................................... 38

Published by Technical Publications

Zenith Electronics Corporation

P.O. Box 240007

Huntsville, Alabama 35824

Copyright  June 2001 by Zenith Electronics Corporation

Made/Printed

in the U.S.A.

Model Series:

CONTENTS

DVD5201

DVD5591

VR166 - 923-03461 2 DVD2 - SAFETY

PRODUCT SAFETY GUIDELINES

IMPORTANT SAFETY NOTICE

This manual was prepared for use only by properly trained audio-visual service

technicians.

When servicing this product, under no circumstances should the original

design be modified or altered without permission from Zenith Electronics

Corporation. All components should be replaced only with types identical to

those in the original circuit and their physical location, wiring and lead dress

must conform to original layout upon completion of repairs.

Special components are also used to prevent x-radiation, shock and fire hazard.

These components are indicated by the letter “x” included in their component

designators and are required to maintain safe performance. No deviations are

allowed without prior approval by Zenith Electronics Corporation.

Circuit diagrams may occasionally differ from the actual circuit used. This way,

implementation of the latest safety and performance improvement changes into

the set is not delayed until the new service literature is printed.

CAUTION: Do not attempt to modify this product in any way. Never perform

customized installations without manufacturer’s approval. Unauthorized

modifications will not only void the warranty, but may lead to property damage

or user injury.

Service work should be performed only after you are thoroughly familiar with

these safety checks and servicing guidelines.

GRAPHIC SYMBOLS

The exclamation point within an equilateral triangle is intended

to alert the service personnel to important safety information in

the service literature.

The lightning flash with arrowhead symbol within an equilateral

triangle is intended to alert the service personnel to the presence

of noninsulated “dangerous voltage” that may be of sufficient

magnitude to constitute a risk of electric shock.

The pictorial representation of a fuse and its rating within an

equilateral triangle is intended to convey to the service personnel

the following fuse replacement caution notice:

CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE,

REPLACE ALL FUSES WITH THE SAME TYPE AND RATING AS MARKED

NEAR EACH FUSE.

SERVICE INFORMATION

While servicing, use an isolation transformer for protection from AC line shock.

After the original service problem has been corrected, make a check of the

following:

FIRE AND SHOCK HAZARD

1. Be sure that all components are positioned to avoid a possibility of

adjacent component shorts. This is especially important on items trans-

ported to and from the repair shop.

2. Verify that all protective devices such as insulators, barriers, covers,

shields, strain reliefs, power supply cords, and other hardware have been

reinstalled per the original design. Be sure that the safety purpose of the

polarized line plug has not been defeated.

3. Soldering must be inspected to discover possible cold solder joints, solder

splashes, or sharp solder points. Be certain to remove all loose foreign

particles.

4. Check for physical evidence of damage or deterioration to parts and compo-

nents, for frayed leads or damaged insulation (including the AC cord), and

replace if necessary.

5. No lead or component should touch a receiving tube or a resistor rated at

1 watt or more. Lead tension around protruding metal surfaces must be

avoided.

6. After reassembly of the set, always perform an AC leakage test on all exposed

metallic parts of the cabinet (the channel selector knobs, antenna terminals,

handle and screws) to be sure that set is safe to operate without danger of

electrical shock. DO NOT USE A LINE ISOLATION TRANSFORMER DURING THIS

TEST. Use an AC voltmeter having 5000 ohms per volt or more sensitivity in

the following manner: Connect a 1500 ohm, 10 watt resistor, paralleled by

a .15 mfd 150V AC type capacitor between a known good earth ground

water pipe, conduit, etc.) and the exposed metallic parts, one at a time.

Measure the AC voltage across the combination of 1500 ohm resistor and

.15 mfd capacitor. Reverse the AC plug by using a non-polarized adaptor

and repeat AC voltage measurements for each exposed metallic part. Voltage

measured must not exceed 0.75 volts RMS. This corresponds to 0.5 milliamp

AC. Any value exceeding this limit constitutes a potential shock hazard and

must be corrected immediately.

X-RADIATION

1. Be sure procedures and instructions to all service personnel cover the

subject of x-radiation. The only potential source of x-rays in current TV

receivers is the picture tube. However, this tube does not emit x-rays when

the HV is at the factory-specified level. The proper value is given in the

applicable schematic. Operation at higher voltages may cause a failure of

the picture tube or high-voltage supply and, under certain circumstances

may produce radiation in excess of desirable levels.

2. Only factory-specified CRT anode connectors must be used.

3. It is essential that the service personnel have available an accurate and

reliable high-voltage meter.

4. When the high-voltage circuitry is operating properly, there is no possibility

of an x-radiation problem. Every time a color chassis is serviced, the

brightness should be run up and down while monitoring the high voltage

with a meter, to be certain that the high voltage does not exceed the

specified value and that it is regulating correctly.

5. When troubleshooting and making test measurements in a product with a

problem of excessively high voltage, avoid being unnecessarily close to

the picture tube and the high voltage power supply. Do not operate the

product longer than necessary to locate the cause of excessive voltage.

6. Refer to HV, B+, and shutdown adjustment procedures described in the

appropriate schematics and diagrams (where used).

IMPLOSION

1. All direct view picture tubes are equipped with an integral implosion

protection system; take care to avoid damage during installation.

2. Use only the recommended factory replacement tubes.

TIPS ON PROPER INSTALLATION

1. Never install any receiver in a closed-in recess, cubbyhole, or closely

fitting shelf space over, or close to, a heat duct, or in the path of heated

air flow.

2. Avoid conditions of high humidity such as: outdoor patio installations

where dew is a factor, near steam radiators where steam leakage is a factor,

etc.

3. Avoid placement where draperies may obstruct venting. The customer

should also avoid the use of decorative scarves or other coverings that

might obstruct ventilation.

4. Wall- and shelf-mounted installations using a commercial mounting kit

must follow the factory-approved mounting instructions. A product mounted

to a shelf or platform must retain its original feet (or the equivalent

thickness in spacers) to provide adequate air flow across the bottom. Bolts

or screws used for fasteners must not touch any parts or wiring. Perform

leakage tests on customized installations.

5. Caution customers against mounting a product on a sloping shelf or in a

tilted position, unless the receiver is properly secured.

6. A product on a roll-about cart should be stable in its mounting to the cart.

Caution the customer on the hazards of trying to roll a cart with small

casters across thresholds or deep pile carpets.

7. Caution customers against using a cart or stand that has not been listed

by Underwriters Laboratories, Inc. for use with its specific model of

television receiver or generically approved for use with TVs of the same or

larger screen size.

8. Caution customers against using extension cords. Explain that a forest of

extensions, sprouting from a single outlet, can lead to disastrous

consequences to home and family.

A.C. Voltmeter

1500 OHM

10 WATT

Place this probe

on each exposed

metal part.

Good Earth Ground

such as the Water

Pipe, Conduit, etc.

0.15uF

VR166 - 923-03461 3 DVD2 - TOC

TABLE OF CONTENTS

OVERVIEW ........................................................ 5

FEATURES ..................................................... 5

SPECIFICATIONS ............................................. 5

OUTPUTS ......................................................5

PACKAGE CONTENTS .........................................6

SERVICING PRECAUTIONS ................................. 7

GENERAL SERVICING PRECAUTIONS .................... 7

INSULATION CHECKING PROCEDURE .................... 7

ELECTROSTATICALLY SENSITIVE (ES) DEVICES ....... 7

DISASSEMBLY .................................................... 8

MECHANISM .................................................... 10

ELECTRICAL..................................................... 14

BLOCK DIAGRAMS ......................................... 14

TROUBLESHOOTING ....................................... 18

PARTS ............................................................ 28

DIAGRAMS ...................................................... 37

DVD5201/5591 EXPLODED VIEW ..................... 37

SCHEMATICS .................................................... 38

DVD5201/5591 POWER SUPPLY CIRCUIT .......... 38

DVD5201/5591 DVD AND DSP CIRCUIT ............ 39

DVD5201/5591 DRIVE AND RF CIRCUIT ........... 40

DVD5201/5591 MICRO CIRCUIT ...................... 41

DVD5201/5591 MEMORY CIRCUIT ................... 42

DVD5201/5591 TIMER CIRCUIT ...................... 43

DVD5201 AUDIO/VIDEO CIRCUIT ..................... 44

DVD5591 AUDIO/VIDEO CIRCUIT ..................... 45

DVD5201 JACK CIRCUIT ................................ 46

DVD5591 JACK CIRCUIT ................................ 47

DVD5201/5591 MAIN PCB LAYOUT .................. 48

DVD5201/5591 PCB LAYOUTS ......................... 49

OVERVIEW

VR166 - 923-03461 5 DVD2 - OVERVIEW

FEATURES

• 5 Disc Changer

• MP3 Decoding

• DTS®/Dolby Digital® Capable

• Component Video Output

• Universal Remote Control with Shuttle

• Zoom (4X, 16X)

• Still Pause and Frame Advance

• EZ Search, EZ Scan with Marker

• Automatic Aspect Ratio Control

• Parental Control

SPECIFICATIONS

Power supply .................................................. AC120V, 60Hz

Power consumption ......................................... 16W

Mass .............................................................. 5.7kg(12.6lbs)

External dimensions ......................................... 430 x 118 x 381 (W x H x D)

Signal system .................................................. NTSC

Laser Semiconductor ........................................ lDVD Semiconductor laser, wavelength 650nm

Frequency range (audio)................................... 4Hz - 20kHz

Signal-to-noise ratio (audio) ............................ More than 100dB (EIAJ)

Audio dynamic range (audio) ............................ More than 90dB (EIAJ)

Harmonic distortion (audio) ............................. 0.008%

Wow and flutter .............................................. Below measurable level (less than +0.001%(W.PEAK))

(EIAJ)

Operations Temperature : .................................. 5°C(41°F) to 35°C(95°F),

Operation status : ........................................... Horizontal

OUTPUTS

Video outputs................................................. 1.0V(p-p), 75W, negative sync., RCA jack x 1

S video outputs .............................................. (Y)1.0V(p-p), 75W, negative sync, Mini DIN 4-pin x 1

(C)0.286V(p-p), 75W

Component video output.................................. (Y)1.0V(p-p), 75W,negative sync., RCA jack x 1 (Pb)/

(Pr) 0.7V(p-p), 75W

Audio output (digital audio) ............................ 0.5V(p-p), 75W, RCA jack X 1

Audio output (analog audio) ............................ 2.0Vrms (1kHz, 0dB), 330W, RCA jack (L, R) x 2

*Designs and specifications are subject to change without notice.

*Weight and dimensions shown are approximate.

OVERVIEW

VR166 - 923-03461 6 DVD2 - OVERVIEW

OVERVIEW

PACKAGE CONTENTS

BATTERY

808

PAC KING SHEET

804

PACKING

OPTIONAL PARTS

803

811

812

OWNER'S MANUAL

810

CABLE SET ASS'Y

801

REMOCON

900

BOX CARTONX

802

PACKING

803

VR166 - 923-03461 7 DVD2 - SERVICING

SERVICING

SERVICING PRECAUTIONS

Before servicing the DVD covered by this service data

(and its supplements and addendums), read and follow

the safety precautions. If unforeseen circumstances create

conflict between the following servicing precautions and

any of the safety precautions in this publication, always

follow the safety precautions. Remember, safety first.

GENERAL SERVICING PRECAUTIONS

1) Always unplug the DVD AC power cord from the AC

power source before:

a) Removing or reinstalling any component, circuit

board, module, or any other assembly.

b) Disconnection or reconnecting any internal elec-

trical plug or other electrical connection.

c) Connecting a test substitute in parallel with an elec-

trolytic capacitor.

Caution: A wrong part substitution or incorrect polarity

installation of electrolytic capacitors may result in

an explosion hazard.

2) Do not spray chemicals on or near this DVD or any of

its assemblies.

3) Unless specified otherwise in this service data, clean

electrical contacts by applying an appropriate con-

tact cleaning solution to the contacts with a pipe

cleaner, cotton-tipped swab, or comparable soft ap-

plicator. Unless specified otherwise in this service

data, lubrication of contacts is not required.

4) Do not defeat any plug/socket B+ voltage interlocks

with which instruments covered by this service manual

might be equipped.

5) Do not apply AC power to this DVD and/or any of its

electrical assemblies unless all solid-state device heat

sinks are correctly installed.

6) Always connect test instrument ground lead to the

appropriate ground before connection the test in-

strument positive lead. Always remove the test in-

strument ground lead last.

INSULATION CHECKING PROCEDURE

Disconnect the attachment plug from the AC outlet and

turn the power on. Connect an insulation resistance meter

(500V) to the blades of the attachment plug. The

insulation resistance between each blade of the

attachment plug and accessible conductive parts should

be more than 1M-ohm. Accessible Conductive Parts

including Metal pan-els, Input terminals, Earphone jacks,

etc.

ELECTROSTATICALLY SENSITIVE (ES) DEVICES

Some semiconductor (solid state) devices can be

damaged easily by static electricity. Such components

commonly are called Electrostatically Sensitive (ES)

Devices. Examples of typical ES devices are integrated

circuits and some field effect transistors and

semiconductor chip components. The following

techniques should be used to help reduce the incidence

of component damage caused by static electricity.

1) Immediately before handling any semiconductor com-

ponent or semiconductor-equipped assembly, drain

off any electrostatic charge on your body by touch-

ing a known earth ground. Alternatively, obtain and

wear a commercially available discharging wrist strap

device, which should be removed for potential shock

reasons prior to applying power to the unit under

test.

2) After removing an electrical assembly equipped with

ES devices, place the assembly on a conductive sur-

face such as aluminum foil, to prevent electrostatic

charge buildup or exposure of the assembly.

3) Use only a GROUNDED-tip soldering iron to solder or

unsolder ES devices.

4) Use only an anti-static solder removal device. Some

solder removal devices not classified a “anti-static”

can generate electrical charges sufficient to damage

ES devices.

5) Do not use freon-propelled chemicals. These can gen-

erate electrical charge sufficient to damage ES de-

vices.

6) Do not remove a replacement ES device from its pro-

tective package until immediately before you are ready

to install it. (Most replacement ES devices are pack-

aged with leads electrically shorted together by con-

ductive foam, aluminum foil, or comparable conduc-

tive material).

7) Immediately before removing the protective material

from the leads of a replacement ES device, touch the

protective material to the chassis or circuit assembly

into which the device will be installed.

Caution: Be sure no power is applied to the chassis or

circuit, and observe all other safety precautions.

8) Minimize bodily motions when handling unpackaged

replacement ES devices. (Normally harmless motion such

as the brushing together of your clothes fabric or the

lifting of your foot from a carpeted floor can gener-

ate static electricity sufficient to damage an ES de-

vice.)

VR166 - 923-03461 8 DVD2 - SERVICING

CHASSIS

DISASSEMBLY

(L1)

(B)

(C)

(F)

(B)

(D)

(E)

(D)

(E)

(B)

(G)

Fig. 2-4

Fig. 2-5

1. Disassemble Main circuit board, Jack

circuit board, Power circuit board and

MD Ass'y DPM1.

1. Remove the top case.(See Fig. 2-1)

2. Remove 10 screws (B).

3. Disassemble Main circuit board and Jack circuit

board from Bracket Main.

4. Unscrew 3 screws(C) at Bracket Main.

5. Disassemble Bracket Main from Main chassis.

6. Unscrew 4 screws(D) at MD Ass'y DPM1.

7. T urn the portion the direction of arrow to move

the Base Assembly T ray in front of you.

8. Release the other 3 screws(E).

9. Disassemble MD Ass'y DPM1 from Main chassis.

10. Unscrew 4 screws(F) at Power circuit.

11. Disassemble power circuit board from Main

chassis.

N

o

t

e:

B

e

f

ore remov

i

ng

th

e ma

i

n c

i

rcu

it

b

oar

d,

b

e sur e

to

s

h

or

t

c

i

rcu

it

th

e

l

aser

di

o

d

e ou

t

pu

t

l

an

d

.

After replacing the main circuit board, open the land after inserting the flexible connector.

(Refer to Mechanism Disassembly)

2. Digitron and Key Circuit Board

1. Remove the front panel.(See Fig. 2-3)

2. Release 6 screws (G), and remove the digitron

circuit board.

VR166 - 923-03461 9 DVD2 - SERVICING

CHASSIS

(A)

C

ABINET DI

S

A

SS

EMBLY

1. T op Case

1. Release 7 screws (A). (See Fig. 2-1)

2. Lift the top case with holding the back of it,

and remove it in the direction of the arrow.

Fig. 2-1

Fig. 2-2

Fig. 2-3

3

. Front Panel

1. Eject the disc tray. (See Fig. 2-2)

2. Remove the tray door. (See Fig. 2-2)

3. Pull the front panel toward you while pressing

5 stoppers to disengage, and remove the front

panel. (See Fig. 2-3)

2.T ray Door

1.Eject the disc tray.

2.Lift up the tray door in the direction of the

arrow.

VR166 - 923-03461 10 DVD2 - SERVICING

MECHANISM

3 Screws

2 Connectors

1 Hook

2 Locking T abs

1 Screw

2 Locking T abs

2 Screws

1 Connector

2 Screws

1 Screw

2 Screws

5 Connectors

4 Screws

1 Connector

1 Locking T ab

1 Screw

2 Connectors

3 Screws

1 Screw

2 Screws

1 Locking T ab

4-1

4-2

4-3

4-4

Note

When reassembling, perform the procedure in

reverse order.

The ÒBottomÓ on Disassembly column of above

Table indicates the part should be disassembled

at the Bottom side.

¥ T op View (Without T ray)

¥ Bottom View

¥

Top

V

iew

(

W

ith T ray

)

VR166 - 923-03461 11 DVD2 - SERVICING

MECHANISM

1 )Release 3 Screws(S1).

2 ) Unlock The Connectors (C1), (C2) from the Hook(H1).

1-1. Plate Clamp

1 ) H o l d a n d f i x t h e U p p e r C l a m p u n d e r the H older

Assembly Clamp, and then turn the Plate Clamp to the

counterclockwise direction(arrow(A)).

1-2. Magnet Clamp

1-3. Upper Clamp

1-4. Holder Clamp

¥ When reassembling, hold and fix the Upper Clamp as

above No. 1-1(1), and then turn the Plate Clamp to the

clockwise direction.

2. Base Assembly Tray(Fig. 4-1)

1 ) Turn the portion to the direction of arrow(B) to move

the Base Assembly Tray in front of you.

2 )Push down two Locking Tabs(L1) located to both sides

of the Base Main, and then pull the Base Assembly

Tra

y

in fornt of

y

ou.

2-1. T ray Disc(Fig.4-2)

1) Release Screw(S2).

¥ Put the Base Assembly T ray face down(Bottom side).

2-2. Roller Base T ray

1) Unlock the two Locking T abs(L2).

2-3. PCB Assembly T ray

1) Release two Screws(S3).

2) Unconnect the Connector(C3).

¥ Put the Base Assembly T ray on original position(T op Side).

2-4. Motor Assembly T ray

1) Release 2 Screws(S4).

2-5. Gear T ray

2-6. Gear Wheel T ray

2-7. Base T ray

(L1)

(A)

(S1)

HOLDER CLAMP

PL ATE CLAMP

MAGNE T CLAMP

UPPER CLAMP

HOLDER CLAMP

BASE MAIN

BASE ASSEMB LY TR AY

(L1)

(C2)

(C1)

(H1)

(B)

BASE TR AY

A

Fig. 4-1 Fig. 4-2

Note

VR166 - 923-03461 12 DVD2 - SERVICING

MECHANISM

PCB ASSEMB LY JUNCTION

(L3)

(C7)

(S7)

(S8)

GEAR ASSEMB LY RACK

RUBBER DAMPER

PICK U P

ASSEMB LY

GENERAL

GEAR MIDDLE

BASE PU(OUTSE R T)

RUBBER DAMPER

RUBBER REAR

PICK U P ASSEMB LY GENERAL

MOT OR ASSEMB LY

GEAR ASSEMB LY FEED

(S7)

(A)

(S6)

(S5)

(C5)

(C6)

(S6)

(B)

PCB ASSEMB LY JUNCTION

FRAME UP/DOWN

BASE MAIN

FRAME UP/DOWN

GEAR UP/DOWN

3. Frame Assembly Up/Down(Fig. 4-3)

1) Release Screw(S5).

3-1. PCB Assembly Junction

1 )Unconnect the 5 Connectors(C5), (C6).

2 )Release 2 Screws(S6).

3-2. Base Assembly Sled Damper

¥ Put the Base Assembly Main on original position(Top side)

1) Release 4 Screws(S7).

2) Disconnect the Connector(C7).

3-2-1. Gear Assembly Feed

1) Look the Locking Tab(L3) in direction of arrow.

3-2-2. Gear Assembly Middle

3-2-3. Gear Assembly Rack

1) Release the Screw(S8).

3-3. Rubber Damper

3-4. Frame U

p

/Down

Fig. 4-3

Note

VR166 - 923-03461 13 DVD2 - SERVICING

MECHANISM

(S10)

(S12)

(S11)

Fig.(B)

(S15)

(S14)

(S9)

(C8)

(C9)

(L4)

(S13)

GEAR SLIDER

GEAR MAIN

GEAR EXCHANGE

GEAR LOADING

GEAR WHEE L MAIN

MOT OR ASSEMB LY MAIN

MODE SWITCH

PCB ASSEMB LY MAIN MODE

BASE MAIN

GEAR UP/DOWN

Fig.(A)

Fig.(C)

Fig. 4-4

4. Base Assembly Main(Fig. 4-4)

¥ Put the Base Assembly Main face down(Bottom Side).

4-1. PCB Assembly Main Mode

1 )Unconnect the Connectors (C8), (C9).

2 )Release three Screws(S9).

¥ When reassembling, align the Mode Switch position as

Fig.(A).

¥ Put the Base Assembly Main on original position(Top Side)

4-2. Gear Slider

1) Release Screw(S10).

4-3. Gear Exchange

1) Release Screw(S 11).

4-4. Gear Main

1

)

Release Screw

(

S12

)

.

¥ When reassembling, align the (A) position of the Gear Main

to the (B) position of Mode Switch as Fig.(B)

4-5. Gear Up/Down

1) Release Screw(S13).

¥ Reassembling, turn the Gear Up/Down in direction of arrow

as Fig.(C).

4-6. Gear Wheel Main

1) Release Screw(S14).

4-7. Gear Loading

4-8. Motor Assembly Main

1) Release 2 Screws(S15).

2) Unlock the Locking Tab(L4).

4-9. Base Main

Note

VR166 - 923-03461 14 DVD2 - SERVICING

ELECTRICAL

BLOCK DIAGRAMS

M

DISC

SPINDLE

MOTOR

LOADIN G

MOTOR

D

E

C

K

M

E

C

H

A

N

I

S

M

CD: A,B, E, F

DVD: A,B,C,D,

DVD; RF

DVD: A,B,C,D,

PIC K

UP

IC205

DRAM

16bit

4M

IC201

HY25D801C

CD / DVD DSP

IC501

IC901

Upd78032

FROM

FL DISPLAY

KEY Input

REMOCON

RECEIVER

5MHz

X-TAL

Pb

IC301

XC9572VL

CPLD

I/O PORT 72

IC304

SDRAM

16/32BIT

64M

IC502

93C46

EEPROM

IC2M1

KA3032

MOTOR

DRIVER

IC2A1

TA33P3721

RF

ICDATA

[00:15]

ICADD

[0:8]

L

O

A

D

I

N

G

F

O

C

U

S

,

T

R

A

C

K

I

N

G

,

S

L

E

D

S

P

I

N

D

L

E

M

I

R

,

T

Z

C

,

P

I

,

T

E

F

E

,

D

F

E

C

T

_

I

N

R

F

O

SCLK,SDATA

SCOR,SQCK,SQSO

X

L

A

T

,

E

_

S

T

I

,

E

_

E

N

B

,

E

_

D

R

RF _XLA T , LDON

IC401

PCM1716

DAC

IC451

PCM1600

DAC

XIO1,XIO2

,XIO10 F_ CLK

F_O UT

PCMCLK

SPINDLE_FG

MSDATO

MDP1

FOK

DEFECT

DSP_SENSE

LOCK

E_SOUT

ZISENB

/XRST

D

A

C

_

R

S

T

16

:

9

,

P

A

L

_

S

W

,

A

U

T

O

_

S

W

,

M

I

C

_

O

N

Y_SEL /A_MUTE /DAC_CS1

/DAC_CS2

V_MUTE DAC_CLK DAC_OUT ADCCLK

ACT_MUTE , LOAD_OPEN , LOAD_CLOSE

MIRR

A

D

[

00

:

19

]

P

S

E

N

B

F

L

D

/FLD_CS

FLD_CLK

FLD_OUT

/FLD_CS COMM_CLK

COMM_OUT

C

P

L

D

EE_CS , EE_CLK , EE _OUT

F_IN

IC3F1

FLASH

ROM

F_IN

/MRESET

74573

/

F

L

A

S

H

_

C

S

,

/

R

D

P

W

E

O

LA0

LA1 LA2

LA3

A

L

E

A

D

[

04

:

19

]

LADD

[04:19]

MD[00:31]

DAC_CS2

DA_ DATA1 ~3

LRCLK

MCLK2

CKE

MA[00:10]

MA12,13

/CS0

/RAS /CAS

/WE

DQM0`3

REQP

SDCLKI , PSYNC

DVD[1:7]

DSP _I NT

SENSE

/DSP_CS

LRCK

DA C-CS

AOUT3

L

C

o

m

p

o

s

i

t

e

FILTER

Y

Pr

SW602

Video SW

CVBS/Pr/R , C/Pb/, Y/ G

Y

C

L/R

-VF

AC 240V,

60Hz

POWER

BOARD

-VF

-24VA

+8V

+5.2VA

+5V_D

+5V_A

+12VA

+3.3V_M

AD[0:7]

LADD4~5 , LA0~3

A

D

[

00

:

15

]

MDP,FDO,TDO,FMO,MON

OPEN_SW

CLOSE_SW

LIMIT_SW

C

P

L

D

S

B

A

D

,

27MHz

X-TAL

33.8688MHz

X-TAL

+3.3V

POWER_CTL

/

S

R

S

T

R

AMP

FRFLRLRRCENTERWOOFER

AMP AMP AMP

5591 Main

5201 Main

M

DISC

SPINDLE

MOTOR

LOADING

MOTOR

D

E

C

K

M

E

C

H

A

N

I

S

M

CD: A,B, E, F

DVD: A,B,C,D,

DVD; RF

DVD: A,B,C,D,

PICK

UP

IC205

DRAM

16bit

4M

IC201

HY25D801C

CD / DVD DSP

IC501

IC901

Upd78032

FROM

FL DISPLAY

KEY Input

REMOCON

RECEIVER

5MHz

X-TAL

Pb

IC301

XC9572VL

CPLD

I/O PORT 72

IC304

SDRAM

16/32BIT

64M

IC502

93C46

EEPROM

IC2M1

KA3032

MOTOR

DRIVER

IC2A1

TA33P3721

RF

ICDATA

[00:15]

ICADD

[0: 8]

L

O

A

D

I

N

G

F

O

C

U

S

,

T

R

A

C

K

I

N

G

,

S

L

E

D

S

P

I

N

D

L

E

M

I

R

,

T

Z

C

,

P

I

,

T

E

F

E

,

D

F

E

C

T

_

I

N

R

F

O

SCLK, SDATA

SCOR,SQCK, SQSO

X

L

A

T

,

E

_

S

T

I

,

E

_

E

N

B

,

E

_

D

R

RF_XLAT , LDON

IC401

PCM1716

DAC

XIO1, XIO2

,XIO10 F_CLK

F_O UT

PCMCLK

SPINDLE_FG

MSDATO

MDP1

FOK

DEFECT

DSP_SENSE

LOCK

E_SOUT

ZISENB

/XRST

D

A

C

_

R

S

T

16

:

9

,

P

A

L

_

S

W

,

A

U

T

O

_

S

W

,

M

I

C

_

O

N

Y_SEL /A_MUTE /DAC_CS1

/DAC_CS2

V_MUTE DA C_CLK DA C_OUT ADCCLK

ACT_MUTE , LOAD_OPEN , LOAD_CLOSE

MIRR

A

D

[

00

:

19

]

P

S

E

N

B

F

L

D

/FLD_CS

FLD_CLK FLD_OUT

/FLD_CS COMM_CLK

COMM_OUT

C

P

L

D

EE_CS , EE_CLK , EE _OUT

F_IN

IC3F1

FLASH

ROM

F_I N

/MRESET

74573

/

F

L

A

S

H

_

C

S

,

/

R

D

P

W

E

O

LA0

LA1 LA2

LA3

A

L

E

A

D

[

04

:

19

]

LADD

[04:19]

MD[00:31]

MCLK2

CKE

MA[00:10]

MA12,13

/CS0

/RAS /CAS

/WE

DQM0 `3

REQP

SDCLKI , PSYNC

DVD[1:7]

DSP_I NT

SENSE

/DSP_CS

LRCK

DAC-CS

AOUT 3

L

C

o

m

p

o

s

i

t

e

FILTER

Y

Pr

SW602

Video SW

CVBS/Pr/R , C/Pb/, Y/G

Y

C

L/R

-VF

AC 24 0V,

60Hz

POWER

BOARD

-VF

-24VA

+8V

+5.2VA

+5V_D

+5V_A

+12VA

+3.3V_M

AD[0:7]

LADD4~5 , LA0~3

A

D

[

00

:

15

]

MDP,FDO,TDO,FMO,MON

OPEN_SW

CLOSE_SW

LIMIT_SW

C

P

L

D

S

B

A

D

,

27MHz

X-TAL

33.8688MHz

X-TAL

+3.3V

POWER_CTL

/

S

R

S

T

R

AMP

VR166 - 923-03461 15 DVD2 - SERVICING

ELECTRICAL

5591 Audio

5201 Audio

IC401

PCM1716

Audio DAC

IC402

LPF & Buffer

NJM4580D

OP AMP

DAC

COMM_DATA

COMM_CLK

DAC_CS

LRCK

A_0WT3

DA_BCK

DA_XCK

L

R

U-COM

I/F

/SRST

L

R

MPEG

I/F

IC451

PCM1600

5.1ch Auto DAC

IC452

NJM4580D

COMM_DATA

COMM_CLK

DAC_CS2

/SRST

LR CLK

DA_XCK

DA_BCK

FL

FR

µ -COM

I/F

DA_DATA1

DA_DATA2

DA_DATA3

FL

FR

IC453

NJM4580D

RL

RR

RL RR

IC454

NJM4580D

CENTER

WOOFER

CENTER

WOOFER

MPEG

I/F

IC401

PCM1716

Audio DAC

IC402

LPF & Buffer

NJM4580D

OP AMP

U-COM

I/F

A_0WT3

/SRST

DAC

COMM_DATA

COMM_CLK

DAC_CS

LRCK

DA_BCK

DA_XCK

L

R

L

R

MPEG

I/F

VR166 - 923-03461 16 DVD2 - SERVICING

ELECTRICAL

MPEG

DSP

IC501

IC301

XC9572VL

CPLD

I/O PORT 72

IC304

SDRAM

16/32BIT

64M

IC502

93C46

EEPROM

IC3F1

FLASH

MEMORY

IC302/IC303

LATCH

AD[0:7]

8

DSP

I/F

DVD[0:7]

8

LA[0:3]

4

SCLK,SDATA

SQCK,SQS0

REQP

SDCLK1,PSYNC

DSP_INT

SENSE

/DSP_CS

A

D

[

0

:

1

9

]

RF &

MOTOR

I/F

MIRR

LDON

S

C

L

K

,

S

D

A

T

A

EE_CS

F_IN

32

MD[00:31]

MCLK2

CKE MA[00:10]

MA12,13

/CS0 /RAS/

/CAS

/WE /DQM[0:3]

SPI NDLE_FG

ALE

AD[04:19]

16

LADD[04:19]

16

LA[0:3]

4

AD[00:15]

16

AUDIO

I/F

DA_DATA

DA_BCK,DA_LRCK,DA_XCK

DAC_L0,DAC_L1

DAC_RST

A/V

JACK

I/F

C/R(B)

CVBS/G(R)

Y/B(G)

CVBS

V_MUTE,16:9

ZISENB

/RD

/PWED

8

SENS, FOK, SLD_FG,

MSDAT0, DEFECT,DSP_SENSE

IC2M1

KA3017

SpindleMotor,LoadingMotor,

Actuator Driver

CD: A,B,C,D / E, F

4

MIRR,TZC

8 8

5

3

SQSO, SQCK, SCOR

6

XLAT, S_CLK, S_DATA

UCOM

I/F

focus, tracking, loading, sled

Spindle

M/D

PICK

UP

MCK

IC206

DVDSP-3301

CD / DVD DSP

DVD SERVO

IC2A1

33P3721

RF Signal

Processor

FDO,TDO,FMO

Load open/close(loading control)

UCOM

I/F

DVD: A,B,C,D,

FE,TE,PI,SBADD

4 4

DVD/CD RF

DRAM

256K x16bit

1

6

9

I

C

A

D

R

[

0

:

8

]

I

C

D

A

T

A

[

0

:

1

5

]

DO[0:7]

AO[0:5]

DVD_DATA[0:7]

MON,MDP

SPINDLE_FG

MPEG

I/F

2 2

DSP_CS, /WR, /RD 3 3

8 8

VR166 - 923-03461 17 DVD2 - SERVICING

ELECTRICAL

Power

5V_D

5V_A

-27VA

VF+

R

E

C

T

I

F

I

E

R

L

I

N

E

F

I

L

T

E

R

S

W

I

T

C

H

I

N

G

T

R

T

R

A

N

S

FEED B.

REG(8V)

8V

5.2VA

VF-

RECTIFIER(FLD)

RECTIFIER(9V)

RECTIFIER(5.2V)

LPF

RECTIFIER(14V) LPF

12VA

AC120V

PWR ON/OFF

REG(3.3V)

2.5V

3.3V,3.3V_M

RECTIFIER(3.8V) LPF

-12VA

VR166 - 923-03461 18 DVD2 - SERVICING

ELECTRICAL

TROUBLESHOOTING

No 5V_D

or 5V_ A .

No 5.2VA.

Is 5.2VA section working?

(Is the POWER CT L at

Pin6 High/low?)

Is oscillation present at the

Base of Q108?

Replace Q108.

Check D109, C123, R125,

R124.

Replace R102.

Replace BD101.

(Bridge rectifier)

Is R102(R104) normal?

Is about AC 100V app;ied to

IC101 Pin 3.

Check IC101.

Is 5.2V applied to IC102

Pin 1?

Is there a DC voltage at the

(+) terminal of BD101?

Check R127, 128.

(SHUTDOWN CKT)

1. Power

(S

MP

S)

C

ircuit

No Display

Is 5.2VA section working?

Replace SMPS trans(T101).

Replace the inferior

components.

Are D109, L103 open?

NO

YES

A

. B.

NO

VR166 - 923-03461 19 DVD2 - SERVICING

ELECTRICAL

Replace Main B/D

Refer to Front Part

Replace IC502

Reconnect it.

2

. µ-

CO

M

C

ircuit

A

. No Power

Does Logo appear

on the screen?

Is oscillation of

X501 normal?

Are IC501 Pins 193, 808

and 81 normal?

Does “DV 50" Bars appear?

Does “Hello” appear at FLD?

Is P3901

connected normally?

Is P3901 Pin 8, 9, 18 normal?

The waveform

on 3, 5, 7 pin of IC502

normal?

Check the oscillation

Check short.

OK

Replace IC501

or IC306.

Check power.

(Refer to power)

If power is

normal

OK

POWER ON

1

YES

NO

YES

A

NO

NONO

YES

A

VR166 - 923-03461 20 DVD2 - SERVICING

ELECTRICAL

B.

A

udio abnormal

D. Open/Close abnormal

Check the

connection of P3901.

Check IC301 Pins 93, 94.

Check Audio jack.

YES (If OK)

YES

NO

YES

YES (If OK)

YES

YES (If OK)

Refer to Audio Circuit

Refer to Decoder Circuit

Refer to Micro Circuit

Replace B/D.

Check Front.

Reconnect it.

Refer to SERVO Circuit

Check the connection of MD.

AUDIO ABNORMAL

OPEN/CLOSE ABNORMAL

C

. Video abnormal

Check Video jack.

YES (If OK)

Refer to Video Circuit.

Refer to Micro Circuit

Replace B/D.

VIDEO ABNORMAL

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