Hitachi DVP-415-U Service Manual

SERVICE MANUAL

TK No.9103E

DV-P415U

CONTENTS

1. Precautions

2. Product Specifications

3. Operating Instructions

4. Disassembly and Reassembly

5. Troubleshooting

6. Exploded Views

7. Replacement Parts List

8. Block Diagrams

9. PCB Diagrams

10. Wiring Diagram

11. Schematic Diagram

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT

DVD PLAYER

2001March

Digital Media Products Division, Tokai

1-1

1. Precautions

1-1 Safety Precautions

1) Before returning an instrument to the customer,
always make a safety check of the entire
instrument, including, but not limited to, the
following items:

(1) Be sure that no built-in protective devices are

defective or have been defeated during servicing.
(1)Protective shields are provided to protect both
the technician and the customer. Correctly replace
all missing protective shields, including any

remove for servicing convenience.
(2)When reinstalling the chassis and/or other as­sembly in the cabinet, be sure to put back in place
all protective devices, including, but not limited to,
nonmetallic control knobs, insulating fish papers,
adjustment and compartment covers/shields, and
isolation resistor/capacitor networks. Do not
operate this instrument or permit it to be operated
without all protective devices correctly installed
and functioning.

(2) Be sure that there are no cabinet openings

through which adults or children might be able to

insert their fingers and contact a hazardous

voltage. Such openings include, but are not limited

to, excessively wide cabinet ventilation slots, and

an improperly fitted and/or incorrectly secured

cabinet back cover.

(3) Leakage Current Hot Check-With the instrument

completely reassembled, plug the AC line cord

directly into a 120V AC outlet. (Do not use a

isolation transformer during this test.) Use a

leakage current tester or a metering system that

complies with American National Standards

institute (ANSI) C101.1 Leakage Current for

Appliances and Underwriters Laboratories (UL)

1270 (40.7). With the instrument's AC switch first in

the ON position and then in the OFF position,

measure from a known earth ground (metal water

pipe, conduit, etc.) to all exposed metal parts of

the instrument (antennas, handle brackets, metal

cabinets, screwheads, metallic overlays, control

shafts, etc.), especially any exposed metal parts

that offer an electrical return path to the chassis.

Any current measured must not exceed 0.5mA.
Reverse the instrument power cord plug in the
outlet and repeat the test. See Fig. 1-1.

Any measurements not within the limits specified
herein indicate a potential shock hazard that must
be eliminated before returning the instrument to
the customer.

Fig. 1-1 AC Leakage Test

(4) Insulation Resistance Test Cold Check-(1) Unplug

the power supply cord and connect a jumper wire
between the two prongs of the plug. (2) Turn on the
power switch of the instrument. (3) Measure the
resistance with an ohmmeter between the
jumpered AC plug and all exposed metallic cabinet
parts on the instrument, such as screwheads,
antenna, control shafts, handle brackets, etc.
When an exposed metallic part has a return path
to the chassis, the reading should be between 1
and 5.2 megohm. When there is no return path to
the chassis, the reading must be infinite. If the
reading is not within the limits specified, there is
the possibility of a shock hazard, and the
instrument must be re-pared and rechecked before
it is returned to the customer. See Fig. 1-2.

Fig. 1-2 Insulation Resistance Test

DEVICE
UNDER

TEST

(READING SHOULD

NOT BE ABOVE

0.5mA)

LEAKAGE
CURRENT

TESTER

EARTH

GROUND

TEST ALL

EXPOSED METER

SURFACES

ALSO TEST WITH

PLUG REVERSED

(USING AC ADAPTER

PLUG AS REQUIRED)

2-WIRE CORD

Antenna
Terminal

Exposed
Melal Part

ohm

ohmmeter

Precautions

1-2

2) Read and comply with all caution and safety re­lated notes non or inside the cabinet, or on the
chassis.

3) Design Alteration Warning-Do not alter of add to
the mechanical or electrical design of this
instrument. Design alterations and additions,
including but not limited to, circuit modifications and
the addition of items such as auxiliary audio output
connections, might alter the safety characteristics
of this instrument and create a hazard to the user.
Any design alterations or additions will make you,
the service, responsible for personal injury or
property damage resulting therefrom.

4) Observe original lead dress. Take extra care to
assure correct lead dress in the following areas:
(1) near sharp edges, (2) near thermally hot parts
(be sure that leads and components do not touch
thermally hot parts), (3) the AC supply, (4) high
voltage, and (5) antenna wiring. Always inspect in
all areas for pinched, out-of-place, or frayed wiring,
Do not change spacing between a component and
the printed-circuit board. Check the AC power cord
for damage.

5) Components, parts, and/or wiring that appear to
have overheated or that are otherwise damaged
should be replaced with components, parts and/ or
wiring that meet original specifications.
Additionally, determine the cause of overheating
and/or damage and, if necessary, take corrective
action to remove any potential safety hazard.

6) Product Safety Notice-Some electrical and
mechanical parts have special safety-related
characteristics which are often not evident from
visual inspection, nor can the protection they give
necessarily be obtained by replacing them with
components rated for higher voltage, wattage, etc.
Parts that have special safety characteristics are
identified by shading, an ( )or a ( )on
schematics and parts lists. Use of a substitute
replacement that does not have the same safety
characteristics as the recommended replacement
part might created shock, fire and/or other hazards.
Product safety is under review continuously and
new instructions are issued whenever appropriate.

Precautions

1-3

1-2 Servicing Precautions

CAUTION : Before servicing Instruments covered

by this service manual and its supplements, read and
follow the Safety Precautions section of this manual.

Note : If unforseen circument create conflict between

the following servicing precautions and any of the
safety precautions, always follow the safety
precautions. Remember: Safety First.

1-2-1 General Servicing Precautions

(1) a. Always unplug the instrument's AC power cord

from the AC power source before (1) re-moving
or reinstalling any component, circuit board,
module or any other instrument assembly, (2)
disconnecting any instrument electrical plug or
other electrical connection, (3) connecting a test
substitute in parallel with an electrolytic
capacitor in the instrument.

b.Do not defeat any plug/socket B+ voltage

interlocks with which instruments covered by this
service manual might be equipped.

c. Do not apply AC power to this instrument and

/or any of its electrical assemblies unless all
solid-state device heat sinks are correctly in­stalled.

d. Always connect a test instrument's ground lead

to the instrument chassis ground before
connecting the test instrument positive lead.
Always remove the test instrument ground lead
last.

Note : Refer to the Safety Precautions section ground

lead last.

(2) The service precautions are indicated or printed

on the cabinet, chassis or components. When
servicing, follow the printed or indicated service
precautions and service materials.

(3) The components used in the unit have a specified

flame resistance and dielectric strength.
When replacing components, use components
which have the same ratings. Components i­entified by shading, by( ) or by ( ) in the circuit
diagram are important for safety or for the
characteristics of the unit. Always replace them
with the exact replacement components.

(4) An insulation tube or tape is sometimes used and

some components are raised above the printed
wiring board for safety. The internal wiring is
sometimes clamped to prevent contact with
heating components. Install such elements as they
were.

(5) After servicing, always check that the removed

screws, components, and wiring have been in­stalled correctly and that the portion around the
serviced part has not been damaged and so on.
Further, check the insulation between the blades
of the attachment plug and accessible conductive
parts.

1-2-2 Insulation Checking Procedure

Disconnect the attachment plug from the AC outlet
and turn the power ON. Connect the 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(see note) should be more than 1 Megohm.

Note : Accessible conductive parts include metal

panels, input terminals, earphone jacks, etc.

Precautions

1-4

1-3 ESD Precautions

Electrostatically Sensitive Devices (ESD)

Some semiconductor (solid state) devices can be
damaged easily by static electricity.
Such components commonly are called Electrostati­cally Sensitive Devices(ESD). Examples of typical
ESD devices are integrated circuits and some field­effect 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

component or semiconductor-equipped assembly,

drain off any electrostatic charge on your body by

touching 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 ESD devices, place the assembly on a

conductive surface 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 ESD devices.

(4) Use only an anti-static solder removal devices.

Some solder removal devices not classified as

"anti-static" can generate electrical charges

sufficient to damage ESD devices.

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

generate electrical charges sufficient to damage

ESD devices.

(6) Do not remove a replacement ESD device from its

protective package until immediately before your

are ready to install it.(Most replacement ESD

devices are packaged with leads electrically

shorted together by conductive foam, aluminum

foil or comparable conductive materials).

(7) Immediately before removing the protective ma-

terials from the leads of a replacement ESD
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 ch-

assis or circuit, and observe all other safety
precautions.

(8) Min imi ze bodily motions when handling

unpackaged replacement ESD devices. (Otherwise
harmless motion such as the brushing together of
your clothes fabric or the lifting of your foot from a
carpeted floor can generate static electricity
sufficient to damage an ESD device).

Precautions

1-5

1-4 Handling the optical pick-up

The laser diode in the optical pick up may suffer
electrostatic breakdown because of potential static
electricity from clothing and your body.

The following method is recommended.
(1) Place a conductive sheet on the work bench (The

black sheet used for wrapping repair parts.)

(2) Place the set on the conductive sheet so that the

chassis is grounded to the sheet.

(3) Place your hands on the conductive sheet(This

gives them the same ground as the sheet.)

(4) Remove the optical pick up block

(5) Perform work on top of the conductive sheet. Be

careful not to let your clothes or any other static

sources to touch the unit.

♦ Be sure to put on a wrist strap grounded to the

sheet.

♦ Be sure to lay a conductive sheet made of copper

etc. Which is grounded to the table.

Fig.1-3

(6) Short the short terminal on the PCB, which is in-

side the Pick-Up ASS'Y, before replacing the Pick­Up. (The short terminal is shorted when the Pick­Up Ass'y is being lifted or moved.)

(7) After replacing the Pick-up, open the short

terminal on the PCB.

THE UNIT

WRIST-STRAP
FOR GROUNDING

1M

1M

CONDUCTIVE SHEET

Precautions

1-6

1-5-1 Disassembly

1) Remove the power code.

2) Disassemble the Deck-Assy.

3) Solder land 4 points short on Pick-up.(See Fig. 1-4)

4) Disassembly the Pick-up.

1-5-2 Assembly

1) Replace the Pick-up.

2) Remove the soldering 4 points on Pick-up.

3) Reassemble the Deck-Assy.

PICK-UP ASS'Y

CD

DVD

SOLDER LAND

4 POINTS SHORT

Note : If the assembly and disassembly are not done in correct sequence, the Pick-up may be damaged.

Fig. 1-4

1-5 Pick-up disassembly and reassembly

2-1

2. Product Specifications

Power Requirements AC 120V, 60Hz

Power Consumption 15W

GENERAL

Weight 2.7kg

Dimensions W 430mm X D 240mm X H 79mm

Operating Temperature Range +5°C ~ +35°C

Operating Humidity Range 10% to 75%

DVD Reading Speed : 3.49 m/s

(Digital Versatile Disc) Approx. Play Time (Single Sided, Single Layer Disc) : 135 min.

CD : 12Cm Reading Speed : 1.2 to 1.4 m/s

DISC

(Compact Disc) Maximum Play Time : 74min.

CD : 8Cm Reading Speed : 1.2 to 1.4 m/s

(Compact Disc) Maximum Play Time : 20min.

VCD : 12Cm

Reading Speed : 1.2 to 1.4 m/s

Maximum Play Time : 74min. (Video + Audio)

Composite Video 1 channel : 1.0Vp-p (75ohm load)

Y : 1.0Vp-p (75ohm load)

Video Output

Component Video Pr : 0.70Vp-p (75ohm load)

Pb : 0.70Vp-p (75ohm load)

S-Video

Luminance Signal : 1Vp-p (75ohm load)

Chrominance Signal : 0.286Vp-p (75ohm load)

2 Channel L (1/L), R (2/R)

* Frequency Response

48kHz Sampling : 4Hz to 22kHz

Audio Output

96kHz Sampling : 4Hz to 44kHz

* S/N Ratio 110dB

* Dynamic Range 100dB

* Total Harmonic Distortion 0.004%

* : Nominal specification

3-1

3. Operating Instructions

14

POWER/STANDBY

When the unit is first plugged in, the indicator lights. When POWER/STANDBY is
pressed, the lamp goes out and the player is turned on.

DISC TRAY

••Press OPEN/CLOSE to open and close the disc tray.

DISPLAY

• Operation indicators are displayed here.

OPEN/CLOSE

• Press to open and close the disc tray.

(PLAY/PAUSE)

• Begin or pause disc play.

(STOP)

• Stops disc play.

(SKIP/SEARCH)

• Use to skip a scene or music.

• If this button is held down for approx. two seconds, it will switch to the search button:
Thereafter, each time the button is pressed, the search speed will switch to 2X, 4X,
8X, 16X, 32X, 128X, after which SKIP will be restored.

Description-Front Panel

Front Panel Controls

15

You can now select different viewing points of the scene recorded by different
cameras (Multi Angle).
Disc type indicators
Reverse playback / Pause / Forward playback
Lights when 3D sound is turned on.
DVD : Title number
DVD : Chapter number.
Video/Audio CD : Track number
Repeat play mode
Linear PCM audio output
Dolby Digital audio output
DTS (Digital Theater System) audio output(Digital only)
MPEG-2 Audio output
Displays various messages concerning operations such as PLAY, STOP, LOAD,
RANDOM, ...

no DISC : No disc loaded.
OPEN : The disc tray is open.
LOAD : Player is loading disc information.

Front Panel Display

Front Panel Display

Œ

´
ˇ
¨
ˆ
Ø
∏
”
’
˝
Ô

Ò

POWER/STANDBY

Operating Instructions

3-2

How to handle the remote control

16

Tour of the Remote Control

• Operate the remote control within the following area, in a straight line from the signal
detecting eye of the player and an angle of 30°.

30

Aprox.7metros

30

30

30

17

POWER/STANDBY Button

• Turns the player on and off.

A-B REPEAT Button

• Marks a segment to repeat between A and B.

REPEAT Button

•Allows you to repeat play a title, chapter, track, or disc.

MODE Button

• Allows you to program a specific order.

RETURN Button

• Returns to a previous menu.

ANGLE Button

•Accesses various camera angles on a disc.

SUBTITLE Button

•Accesses various subtitles on a disc.

MENU Button

• Brings up the Menu on a disc.

ENTER/DIRECTION Button (UP/DOWN or LEFT/RIGHT Button)
DISC NAVIGATION Button

• To view the first picture of each chapter(DVD) or track(VCD).

STEP Button

•Advances playback one frame at a time.

STOP Button

• To stop playback.

SEARCH Buttons

•Allows you to search forward/backward through a disc.

TV POWER Button

• To turn the TV on and off.

VIDEO/TV Button

• To select the input: VIDEO (DVD player) or TV.

SURROUND Button

• To activate the 3D sound.

BOOKMARK Button

• To rapidly return to a location of disc.

OPEN/CLOSE Button

• To open or close the disc tray.

NUMBER Buttons
ZOOM Button

• To magnify part of picture.

CLEAR Button

• Removes menus or status displays from the screen.

DISPLAY Button

• Displays the current disc mode.

AUDIO Button

•Accesses various audio functions on a disc.

TOP MENU Button

• Brings up the Top Menu on a disc.

SETUP Button

• Brings up the DVD player’s Setup menu.

SKIP Buttons

• Skip the, Chapter, or Track.

PLAY/PAUSE Button

• Begin/Pause disc play.

VOL Buttons

• To adjust the TV volume.

CH Buttons

• To switch TV channels.

Tour of the Remote Control

DVD Function Buttons

DV-RM410

Œ

´

ˇ

¨

ˆ

Ø

∏

”

’
˝

Ô



Ò

Ú

Æ

ı

˜

¯

˘
¿

¸

˛

◊

±

≠

–

—

÷

®

Operating Instructions

3-3

22

DIGITALAUDIO OUT JACK

• Use either an optical or coaxial digital

cable to connect to a compatible
Dolby Digital receiver. Use to connect
to an A/V Amplifier that contains a
Dolby Digital decoder or DTS
decoder.

MIXED AUDIO OUT JACKS

• Connect to the Audio input jacks of

your television, audio/video receiver.

VIDEO OUT JACK

• Use a video cable to connect one of

the jack to the Video input on your
television.

S-VIDEO OUT JACK

• Use the S-Video cable to connect this

jack to the S-Video jack on your
television for a higher quality picture.
The S-Video must be selected in the
VIDEO OUT SELECT switch.

COMPONENT VIDEO OUT JACKS

• Use these jacks if you have a TV with

Component Video in jacks. These
jacks provide Pr, Pb and Y video.
Along with S-Video, Component Video
provides the best picture quality. The
Y, Pb, Pr must be selected in the
VIDEO OUT SELECT switch.

VIDEO OUT SELECT switch

• Use the switch to set video out.

• If the Y, Pb or Pr is selected, the S-

Video may not work.

• If the S-Video is selected, the Y, Pb or

Pr may not work.

Description-Rear Panel

Rear Panel

COMPONENT VIDEO OUT

YPr

Pb

VIDEO OUT S-VIDEO OUT

MIXED AUDIO OUT

RL

OPTICAL COAXIAL

DIGITAL AUDIO OUT

S-VIDEO

Y,P b ,P r

VIDEO OUT
SELECT

Œ

´

ˇ

¨

ˆ

Ø

4-1

4. Disassembly and Reassembly

4-1 Cabinet and PCB

4-1-1 Top Cabinet Removal

1) Remove 3 Screws Πon the back Top Cabinet.

2) Lift up the Top Cabinet in direction of arrow.

Π3 SCREWS

Fig. 4-1 Top Cabinet Removal

Note : Reassembly in reverse order.

4-2

Disassembly and Reaasembly

4-1-2 Door-Tray Removal

1) Supply power and open Tray Œ.

2) Disassemble the Door-Tray ´ in direction of arrow "A".

3) Close Tray Πand power off.

Note : If Tray Œ doesn't open, insert a Screw driver ¨ into the Emergency hole ˇ (as shown in detailed drawing)

and then push it in the direction of arrow "B". Open Tray manually.

ΠTRAY
´ DOOR-TRAY

"A"

<Side View>

ˇ EMERGENCY HOLE

¨ SCREW DRIVER

"B"

Fig. 4-2 Door-Tray Removal

Disassembly and Reaasembly

4-3

Fig. 4-3 Ass'y Front-Cabinet Removal

4-1-3 Ass'y Front-Cabinet Removal

1) Remove Ass'y Front-Cabinet Œ.

ΠASS'Y FRONT-CABINET

4-4

Disassembly and Reaasembly

4-1-4 Ass'y Deck Removal

1) Disconnect Flat-Cable,Connect-Wire from DCN1, DCN2 on Main PCB.

2) Remove 3 Screws Πfrom the Ass'y Deck and lift it up.

Fig. 4-4 Ass'y Deck Removal

Π3 SCREWS

DECK-ASS'Y

CONNECT-WIRE

FLAT-CABLE

MAIN PCB

DCN1

DCN2

Disassembly and Reaasembly

4-5

Fig. 4-5 Main PCB, Jack PCB Removal

4-1-5 Main PCB, Jack PCB Removal

1) Remove 2 Screws Œ and lift up the Jack PCB ´.

2) Remove 3 Screws ˇ and lift up the Main PCB ¨.

Π2 SCREWS

´ JACK PCB

ˇ 3 SCREWS

¨ MAIN PCB

4-6

Disassembly and Reaasembly

4-2 PCB Location

Fig. 4-6 PCB Location

Disassembly and Reaasembly

4-7

4-3 Connector Diagram

Fig. 4-7 Connector Diagram

DECK-ASS'Y

JACK PCB

˝

CT5

ˇ

CT4

’

”

¨

´

DECK PCB

CT1

Œ

CT2

CT3

Ø

ˆ

∏

MAIN PCB

NO. CONNECTOR NO. DIRECTION CONNECTOR NO. NO.

Œ FLAT-CABLE DECK PCB MAIN PCB DCN1 ´

ˇ

CONNECT-WIRE

(HCN1) HOUSING PCB MAIN PCB DCN2 ¨

ˆ CN8 MAIN PCB JACK PCB DCN1 Ø

∏ PCN1 MAIN PCB JACK PCB PCNS1 ”

’ FCN1 MAIN PCB JACK PCB CN2-S ˝

CT1

CT2

CT3

CT4

CT5

4-8

Disassembly and Reaasembly

4-4 Deck

4-4-1 Tray Disc Removal

1) Insert a Screw Driver Œ into Emergency Hole ´ and push the Slider Housing ˇ in the direction arrow "A".

2) When the Tray Disc ¨ comes out a little, pull it in the direction arrow "B" by hand.

3) Pull the Tray Disc ¨ to disassemble , while simultaneously pushing 2 Stoppers ˆ (left, right) in the direction

arrow "C", "D".

Fig. 4-8 Tray Disc Removal

¨ TRAY DISC

ˆ STOPPER

"B"

"C"

"D"

ˆ STOPPER

ˇ SLIDER HOUSING

"A"

ΠSCREW DRIVER

´ EMERGENCY HOLE

Disassembly and Reaasembly

4-9

4-4-2 Ass'y P/U Deck Removal

1) Disconnect DCN2 Œ, DCN3 ´.

2) Lift down the Assy P/U Deck ˇ while simultaneously pushing 2 Hooks ¨, ˆ in the direction of arrow

"A", "B".

Fig. 4-9 Ass'y P/U Deck Removal

¨ HOOK

"A"

ˆ HOOK

"B"

<Assembly Point>

SLIDER HOUSING

ΠDCN2

´ DCN3

ˇ ASSY- P/U DECK

4-10

Disassembly and Reaasembly

4-4-3 Housing Ass'y Removal

1) Remove Belt Œ.

2) Push the Hook ´ in the direction arrow "A" and lift up Pulley Gear ˇ.

3) Push the Slider Housing ˆ in the direction arrow "B" and lift up the Gear Tray ¨.

4) Lift up the Slider Housing ˆ.

5) Remove the soldering Ø of 2 points (Red, Black).

6) Remove 2 Screws ∏ and lift down the Motor Load Ass'y ”.

7) Push the 3 Hooks ’ bottom side in the direction arrow "C" and lift up the Housing PCB ˝.

8) Push the Hooks Ô and remove Deck PCB .

Fig. 4-10 Housing Ass'y Removal

"B"

∏ 2 SCREWS

´ HOOK

"A"

ˆ SLIDER HOUSING

¨ GEAR TRAY

ˇ PULLEY GEAR

ΠBELT

” MOTOR LOAD ASSY

"C"

˝ HOUSING PCB

Ô HOOK

 DECK PCB

Ø SOLDERING

"C"

"C"

’ 3 HOOKS

<Bottom Side>

Disassembly and Reaasembly

4-11

4-4-4 Sub Chassis Removal

1) Remove the Soldering of Motor Feed (+, - wire) Œ.

2) Remove the 4 Screws ´.

3) Lift up the Ass'y Brkt Deck ˇ.

Fig. 4-11 Sub Chassis Removal

´ 4 SCREWS

ˇ ASSY-BRAK DECK

ΠSOLDERING OF

MOTOR FEED (+, - WIRE)

+

4-12

Disassembly and Reaasembly

4-4-5 Ass'y Brkt Deck Removal

1) Remove Washer Œ.

2) Remove Gear Feed B ´ , Gear Feed A ˇ.

3) Remove 2 Screws ¨.

4) Remove Shaft Pick-Up ˆ and Pick-Up Assy Ø.

5) Remove 1 Screw ∏.

6) Remove 2 Screws ”.

7) Remove 3 Spring Spindle ’ and Motor Spindle Ass'y ˝.

Fig. 4-12 Ass'y Brkt Deck Removal

˝ MOTOR SPINDLE

’ SPRING SPINDLE

ˆ SHAFT PICK-UP

Ø PICK-UP ASS'Y

¨ 2 SCREW

ΠWASHER

´ GEAR FEED B

∏ 1 SCREW

” 2 SCREWS

ˇ GEAR FEED A

5-1

5. Troubleshooting

No Disc recognition

LD is outputted

from object lens at

play key input?

No focus incoming and

no disc occurs.

Yes

No

B

A

No focus incoming

A

FE in SIC1-25

is within specified range?

Yes

SIC3-26, 27 output

are normal?

Yes

Check open state from

SIC3 to pick-up.

No

No

Check RIC1 and A, B, C, D input.

Check SIC3.

Troubleshooting

5-2

No pick-up home positing

SLD, SIC1-34

output is normal?

Yes

LED+, SLED-

SIC3-32, 33 output are

normal?

Yes

Check the Sled Motor and connection

No

No

Check MIC1

Check SIC3

NO LD CD ON

B

RIC1-21 is 5V?

Yes

Divide RQ1 emitter terminal

voltage and 5V real voltage

difference into 10ohm.

Yes

Current exceeds 0.1A?

Yes

No

No

Check MIC1

Open check in related circuit.

LD out pick-up replace.

Troubleshooting

5-3

No Search Operation

FINE SEEK Check

MIRR, SIC1-157

output is normal?

Yes

Actual velocity occurs

at SIC1-34 terminal?

Yes

Actual velocity occurs

at SIC4-32, 33 terminal?

Yes

No

No

No

RFAGCO, RIC1-72

output level is normal?

Yes

Check RIC1 peripheral circuit.

Check SIC1 peripheral circuit.

Check SIC3 peripheral circuit.

No

Check pick-up.

FINE SEEK MIRR

signal (RIC1-46) is missing?

No

TZCO signal

(SIC1-24) is occurs?

Yes

Track incomming is

delayed?

Yes

TE is within

2V and 3V?

Yes

Pick-up transfer smooth.

Yes

No

Check RIC1 Peripheral curcuit.

No

Check SIC1 Peripheral curcuit.

No

Time out due to many jump counts.

No

SIC1-33 output

is normal?

SIC3-28, 29

terminal outputs are

normal?

Yes

No

Check RIC1-26 terminal.

No

TE occurs in

search range?

Yes

See "Fine Seek Check"

No

Focus On?

No

A

Yes

Check MECHA.

Yes

Check SIC3 peripheral circuit.

Check SIC1 peripheral circuit.

Check DCN1 and pick-up.

Troubleshooting

5-4

Abnormal rotation of

disc motor

Input of RF signal

is normal? (SIC1-15)

Yes

SPD output is normal?

(SIC1-35)

Yes

SIC3-2 output (FG)

is normal?

No

No

After resoldering SIC1.

Check path to RIC1 and SIC1.

No

Check SIC3 soldering and power.

RIC1-71 output

is normal?

Yes

RIC1-70 output

are normal?

Yes

No

Check RIC1 peripheral

circuit and A, B, C, D.

No

Check RIC1 soldering and power.

No Tray open/close

MIC1-6, 8 is

Open ; "L", "L" ?

Close ; "H", "H"?

Yes

Check SIC3-35, 36

output at open/close

Yes

Check signal line state from

SIC3-35, 36 to tray motor.

No

No

Micom (MIC1) error.

Check SIC3.

Yes

SIC3-9 signal

MON is "H" ?

Yes

Check or replace disc motor.

No

Check SIC1, MIC1.

Troubleshooting

5-5

CD/VCD/DVD L/R output error

(Mixed Audio output)

Digital output error

Normal DATA 0 is

input in AIC1-3?

Yes

Analog output of

AIC1-9, 10, 11, 12 is

normal?

Yes

AOP1-1, 7 output

is normal?

Yes

Base terminal level

of AQ1, AQ3

are "L"?

Yes

No

No

No

No

Check ZIC1-121 output.

Check ZIC1-125

(CD/VCD ; 16.9344MHz,

DVD ; 18.432MHz)

Check AOP1 peripheral circuit.

Check FIC1-47 mute.

Output in ZIC1-127 is normal?

Yes

Output in

AIC3-6, 8, 10 is

normal?

Yes

Check AVJ4, ACJ5 peripheral

soldering shot.

No

No

Check ZIC1 peripheral circuit.

Check AIC3.

Check AVJ2 peripheral

soldering shot.

Troubleshooting

5-6

No Power

(Standby LED OFF)

PFD01 error?

No

PDS01 voltage

is missing?

Yes

PICF1 Drain (pin 1)

voltage is missing?

Yes

Voltage exists in

PICF1-4?

Yes

Yes

No

No

No

Replace fuse.

Check PRF10.

Check 2d voltage.

Check PRF11 ~ PRF14.

CVBS output error

D

Pin of VDD_2.5 &

VDD-3.3 in Zic1 has

normal level?

Yes

27MHz clock

input is normal at

pin 159 in ZIC1?

Yes

Analog output

is normal at pin 133

in ZIC1?

Yes

Analog signals are
inputted normally

pin 2 in VIC1?

Yes

Power is

normal at pin 1, 28

in VIC1?

Yes

Pin 7 in VIC1

is in high stste?

Yes

No

No

No

No

No

No

Check the connection between

pin 1 in PCNS1 and pin 3 in ZIC5.

Check the connection between

pin 6 in ZIC4 and pin 129 in ZIC1.

Check the soldering of ZIC1.

Check the connection netween

pin 133 in ZIC1 and VIC1.

Check the connection betwen

VIC1 and PICS4-2.

Check the connection between

PICS4-2 and pin 1 in VIC1.

Pulse is missing

in PICF1-5?

No

Replace PICF1.

Yes

Replace PICF1.

Check feed back.

Peak to peak

voltage level of pin 27

in VIC1 is 2V?

Yes

Video signal of

about 1V appears at

output jack?

Yes

Check the RCA cable.

No

No

Check the soldering of VIC1.

Check the connection between

VIC1 and output jack.

Troubleshooting

5-7

S-Video output error

Y/Pr/Pb output error

VSW1 video select

switch is up position?

Yes

VR121 of VSW1

is high state?

Yes

Pin 38 in FIC1
is high state?

Yes

D

No

No

No

Move the select switch to up position.

Check the soldering of VSW1.

Check the connection between

pin 38 in FIC1 and VR121.

VSW1 video select

switch is down position?

Yes

VR121 of VSW1

is low state?

Yes

Pin 38 in FIC1

is high state?

Yes

D

No

No

No

Move the select switch to down position.

Check the soldering of VSW1.

Check the connection between

pin 38 in FIC1 and VR121.

6-1

6. Exploded View

6-1 Cabinet Assembly - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

6-2 Deck Assembly - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Page

6-2

6-3

Exploded Views

6-2

6-1 Cabinet Assembly

104

001
MAIN P.C.B

102

109

106

108

108

CN1B

101

002
JACK P.C.B

103

105

6-3

Exploded Views

6-2 Deck Assembly

H105

DCN1A

H104

H207

H200

H211

H210

MECHINISM SECTION

101 TS16461 MECHA ASSY(DVD)
102 TE13371 CORD,POWER

103 TJ14994 PANEL,FRONT
104 TJ15002 COVER,TOP
105 TJ15091 DOOR ASSY
106 TJ15021 PANEL,REAR
108 TJ15041 FOOT,FRONT

109 TJ15051 HOLDER,CORD
H104 TS16341 MOTOR,LOAD
H105 TJ15031 BELT,PUULEY
H200 TS16371 DECK,BRACKET
H207 TS16351 MOTOR,SPINDLE

H210 TS16361 MOTOR,FEED
H211 TS16491 PICK UP ASSY
001 TS16441 PWB ASSY MAIN
002 TS16451 PWB ASSY JACK

ACCESSORIES

802 TS16332 REMOTE HAND SET
803 TE13361 CABLE,AV

PCD02 TA14331 CERAMIC DISC 3.3nF 400V
PCD03 TA14311 CERAMIC DISC 3.3nF
PCR01 TA14301 CERAMIC DISC 10nF 400V
PCS03 TA14341 CERAMIC DISC 100pF 400V
PEF10 TA14291 CAPACITOR 150uF 200V

AD54 TC11651 DIODE 1N4148
PDS01 TC11631 DIODE 1T5
PDS02 TC11631 DIODE 1T5
PDS03 TC11631 DIODE 1T5
PDS04 TC11631 DIODE 1T5

PDS11 TC11661 DIODE UF4007
AIC1 TC11751 IC AK4382VT
AIC3 TC11481 IC M74HCU04
AOP1 TC11511 IC 4560
FIC1 TC11921 IC UPD780232GC-033

FIC2 TC11541 IC 7545
FIC4 TC11791 MODULE,REMOCON
MIC1 TC11931 IC 91C219
MIC2 TC11682 EPROM
MIC3 TC11941 IC 15M256

MIC4 TC11681 IC 24C021
MIC5 TC11351 IC TC7S08F
MIC6 TC11691 IC 7S32
MIC7 TC11401 IC 7SET00
PIC1 TC11701 IC MM1563

PICS1 TC11591 PHOTO COUPLER PC123
PICS2 TC11581 IC KA431Z
PICS3 TC11551 IC 7908
PICS4 TC11561 IC 78R08
PICS5 TC11951 IC 3RF23

RIC1 TC11711 IC S5L1462A
SIC1 TC11721 IC KS1454
SIC2 TC11731 IC 416C256
SIC3 TC11441 IC KA3017
SIC4 TC11351 IC TC7S08F

VIC1 TC11771 IC 1540
ZIC1 TC11461 IC ZIVA4.1
ZIC2 TC11981 IC 638165
ZIC4 TC11481 IC M74HCU04
PQR11 TC11611 SEMICONDUCTOR C5039F

PVA1 TC11641 SOMICONDUCTOR SVC471D
SY1 TE13881 CRYSTAL 33.8688MHZ
ZY1 TE13891 CRYSTAL 27HMZ
MY1 TE14351 CRYSTAL 20HMZ
FY1 TE13901 RESONATOR 5MHZ

PTD1 TA14191 TRANSFORMER
AVJ1 TE13931 JACK
AVJ2 TE13941 JACK
AVJ4 TE14191 JACK
AVJ5 TE14331 CONNECTOR

7-1

7. Replacement Parts List

7-1. MECHINICAL PARTS LIST 7-2.ELECTRICAL PARTS LIST

SYMBOL

NO

P-NO

DESCRIPTION

SYMBOL

NO

P-NO

DESCRIPTION

SVJ1 TE13951 JACK
CN1B TE14001 CONNECTOR
CN8 TE13381 CONNECTOR(35P)
PCNS2 TE14291 CONNECTOR
PFD01 TE13401 FUSE

PICS6 TE13911 ICP-N25
PICS7 TE13911 ICP-N25
PLS01 TA14201 FILTER,LINE
VFD1 TE13921 DISPLAY
SW1 TE13981 SWITCH

SW2 TE14521 SWITCH
HSW1 TE14021 SWITCH
VSW1 TE13971 SWITCH,SLID

7-2

Replacement Parts List

SYMBOL

NO

P-NO

DESCRIPTION

SYMBOL

NO

P-NO

DESCRIPTION

8-1

8. Block Diagram

DECK ASS'Y (DP-7)

SIC3

(KA3017)

Actuator & Motor Driver

Spindle/Sled/Tray Motor Pick-up & I/V Amp

SIC2 4M DRAM

ZIC2 SDRAM

MIC4 2K EEPROM

Remote Control FLT Display

MIC2 8M EPROM

Post Filter

Coaxial

Yout
Cout

SIC1

(S5L1454A)

Servo + DSP

RIC1

(S5L1462A)

RF Amp & DPD

MIC1

(TMP91C219F)

Main Controller

FIC1

(uPD780232)

Front Controller

ZIC1 (ZiVA-4.1)

A/V Decoder

CVBS

R/Pr

B/Pb

G/Y

Lt

Rt

Post
Filter

Optical

A/V

Decoder

AC3 &

MPEG 5.1

Video

Encoder

(4DAC)

AUDIO

DSP

CSS

INPUT

FIFO

&

DEMUX

AIC1 (AK4382)

2-CH Audio DAC

Down-L/R

Compo

Post Filter

Y/B/Pb

Post Filter

C/R/Pr

Post Filter

Comp/G/Y

IEC958/1937

VIC1

(MM1540)

MIC3 1M SDRAM

9-1

9. PCB Diagrams

9-2

9-3

9-4

9-4

9-1 Main - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

9-2 Jack - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

9-3 Deck - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

9-4 Housing - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

PCB Diagrams

9-2

9-1 Main

COMPONENT

SOLDER SIDE

PCB Diagrams

9-3

9-2 Jack

PCB Diagrams

9-4

9-4 Housing9-3 Deck

10-1

10. Wiring Diagram

11. Schematic Diagrams

Block Identification of PCB

Main PCB (Component Side)Main PCB (Component Side)

Jack PCB (Conductor Side)Jack PCB (Conductor Side)

T15M256A

M27C801

PIC1

MM1563

11-1 Power - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

11-2 AV-Decoder/Main-Micom/Key - - - - - - - - - - - - - - - - - - - - - -

11-3 Servo - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

11-4 Video - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

11-5 Audio - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

11-6 Front-Micom/VFD Display - - - - - - - - - - - - - - - - - - - - - - - - -

11-7 Deck - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

11-2

11-3

11-4

11-5

11-6

11-7

11-8

11-1

Schematic Diagrams

11-1 Power

PICS6

ICP-N25

PICS7

ICP-N25

11-2

11-2 AV-Decoder/Main-Micom/Key

Schematic Diagrams

M27C801

T15M256A

11-3

Schematic Diagrams

11-3 Servo

S5L1462A

S5L1454A

11-4

11-4 Video

Schematic Diagrams

11-5

Schematic Diagrams

11-5 Audio

11-6

11-6 Front-Micom/VFD Display

Schematic Diagrams

JUP
JUP
JUP
JUP

JUP

11-7

Schematic Diagrams

11-7 Deck

11-8

HOUSING PCB

DV-P415U

DV-P415U

TK No.9103E

Copyright © Hitachi, Ltd. 2001. All rights reserved.

Digital Media Products Division, Tokai

DV-P415U

Printed in Japan (II)