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)
(L1)
(B)
(B)
(C)
(C)
(C)
(F)
(F)
(F)
(F)
(B)
(B)
(D)
(E)
(D)
(D)
(D)
(E)
(E)
(B)
(B)
(G)
(G)
(G)
(G)
(G)
(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)
(A)
(A)
(A)
(A)
(A)
(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
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
1 Screw
1 Screw
1 Screw
1 Screw
2 Screws
1 Locking T ab
4-1
4-1
4-1
4-1
4-1
4-2
4-2
4-2
4-2
4-2
4-2
4-2
4-2
4-3
4-3
4-3
4-3
4-3
4-3
4-3
4-3
4-4
4-4
4-4
4-4
4-4
4-4
4-4
4-4
4-4
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)
(S1)
(S1)
HOLDER CLAMP
PL ATE 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
Note
Note
VR166 - 923-03461 12 DVD2 - SERVICING
MECHANISM
PCB ASSEMB LY JUNCTION
(L3)
(C7)
(S7)
(S7)
(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
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)
(S15)
(S14)
(S9)
(S9)
(S9)
(C8)
(C9)
(L4)
(S13)
GEAR SLIDER
GEAR MAIN
GEAR EXCHANGE
GEAR LOADING
GEAR WHEE L MAIN
MOT OR ASSEMB LY 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
Note
Note
Note
VR166 - 923-03461 14 DVD2 - SERVICING
ELECTRICAL
ELECTRICAL
BLOCK DIAGRAMS
M
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
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
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
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
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
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
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
8
SENS, FOK, SLD_FG,
MSDAT0, DEFECT,DSP_SENSE
IC2M1
KA3017
SpindleMotor,LoadingMotor,
Actuator Driver
CD: A,B,C,D / E, F
4
4
4
4
MIRR,TZC
8 8
5
5
3
3
3
3
SQSO, SQCK, SCOR
6
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
D
R
[
0
:
8
]
I
C
D
A
T
A
[
0
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
LPF
RECTIFIER(14V) LPF
12VA
AC120V
PWR ON/OFF
REG(3.3V)
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
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
A
. B.
NO
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
1
YES
YES
YES
YES
NO
YES
YES
YES
A
NO
NO
NO
NO
NO
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
NO
YES
YES (If OK)
YES
YES (If OK)
YES (If OK)
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)
YES (If OK)
YES (If OK)
Refer to Video Circuit.
Refer to Micro Circuit
Replace B/D.
VIDEO ABNORMAL
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/
