Duntech Audio DCD-2203 Service manual

SERVICE MANUAL

Sec. 1: Main Section

I Specifications I Preparation for Servicing I Adjustment Procedures I Schematic Diagrams

Sec. 2: Deck Mechanism Section

I Standard Maintenance I Alignment for Mechanism I Disassembly/Assembly of Mechanism I Alignment Procedures of Mechanism

Sec. 3: Exploded views and Parts List Section

I Exploded views I Parts List

I CBA’s

DVD PLAYER &

VIDEO CASSETTE RECORDER

DCD2203

CH-DOWN

POWER

CH-UP

STOP/EJECT

PLAY

OPEN/CLOSE

OUTPUT

STOP

REV PLAY

FWD

PLAY

DISC IN

DVD

VCR

TIMER REC

REW

REC

VIDEO AUDIO

IMPORTANT SAFETY NOTICE

Proper service and repair is important to the safe, reliable operation of all Funai Equipment. The service procedures recommended by Funai and described in this service manual ar e effective methods of perf orming service operations. Some of these service special tools should be used when and as recommended.

It is important to note that this service manual contains various CAUTIONS and NOTICES which should be carefully read in order to minimize the risk of personal injury to service personnel. The possibility exists that improper service methods may damage the equipment. It also is important to understand that these CA UTIONS and NO TICES ARE NO T EXHAUSTIVE. Funai could not possibly kno w , ev aluate and advice the service trade of all conceiv ab le wa ys in which service might be done or of the possible hazardous consequences of each way. Consequently, Funai has not undertaken any such broad evaluation. Accordingly , a servicer who uses a service pr ocedure or tool which is not recommended by Funai must first use all precautions thor oughly so that neither his safety nor the safe operation of the equipment will be jeopar dized by the service method selected.

Manufactured under license from Dolby Laboratories. "Dolby" and the double-D symbol are trademarks of Dolby Laboratories.

MAIN SECTION

DVD PLAYER &

VIDEO CASSETTE RECORDER

DCD2203

Sec. 1: Main Section

I Specifications I Preparation for Servicing I Adjustment Procedures I Schematic Diagrams I CBA’s

TABLE OF CONTENTS

Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1-1

Laser Beam Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2-1

Important Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3-1

Standard Notes for Servicing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4-1

Preparation for Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5-1

Operating Controls and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6-1

Cabinet Disassembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7-1

Electrical Adjustment Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8-1

FIRMWARE Renewal Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9-1

Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-10-1

Schematic Diagrams / CBA’s and Test Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-11-1

Waveforms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-12-1

Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13-1

System Control Timing Charts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14-1

IC Pin Function Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15-1

Lead Identifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16-1

SPECIFICATIONS

< VCR Section >

Description Unit Minimum Nominal Maximum Remark

1. Video

1-1. Video Output (PB) Vp-p 0.8 1.0 1.2 SP Mode 1-2. Video Output (R/P) Vp-p 0.8 1.0 1.2

1-3. Video S/N Y (R/P) dB 40 45

1-4. Video Color S/N AM (R/P) dB 37 41 SP Mode 1-5. Video Color S/N PM (R/P) dB 30 36 SP Mode 1-6. Resolution (PB) Line 230 245 SP Mode

2. Servo

2-1. Jitter Low µsec 0.07 0.12 SP Mode 2-2. Wow & Flutter % 0.3 0.5 SP Mode

3. Normal Audio

3-1. Output (PB) dBV -9 -6 -3 SP Mode 3-2. Output (R/P) dBV -9 -6 -1.5 SP Mode 3-3. S/N (R/P) dB 36 41 SP Mode 3-4. Distortion (R/P) % 1.0 4.0 SP Mode 3-5. Freq. resp (R/P) at 200Hz dB -11 -4 SP Mode (-20dB ref. 1kHz) at 8kHz dB -14 -4 SP Mode

SP Mode,

W/O Burst

4. Tuner

4-1. Video output Vp-p 0.8 1.0 1.2 E-E Mode 4-2. Video S/N dB 39 42 E-E Mode 4-3. Audio output dB -10 -6 -2 E-E Mode 4-4. Audio S/N dB 40 46 E-E Mode

Note: Nominal specs represent the design specs. All units should be able to approximate these – some will exceed and some may drop slightly below these specs. Limit s pecs represent the ab solute worst conditi on that still might be considered acceptable; In no case should a unit fail to meet limit specs.

1-1-1 H9411SP

< DVD Section >

ITEM CONDITIONS UNIT NOMINAL LIMIT

1. Video Output 75 ohm load Vpp 1.0 ± 0.1

2. Coaxial Digital Out 75 ohm load mVpp 500 ± 100

3. Audio (PCM) 3-1. Output Level 1kHz 0dB Vrms 2.0 3-2. S/N dB 120 3-3. Freq. Response DVD fs=48kHz 20~22kHz dB ± 0.5 CD fs=44.1kHz 20~20 kHz dB ± 0.5 3-4. THD+N DVD 1 kHz 0dB % 0.0025 CD 1 kHz 0dB % 0.003

NOTES:

1. All Items are measured without pre-emphasis unless otherwise specified.

2. Power supply : AC120 V 60 Hz

3. Load imp. : 100 K ohm

4. Room ambient : +25

°C

1-1-2 H9411SP

LASER BEAM SAFETY PRECAUTIONS

This DVD player uses a pickup that emits a laser beam.

Do not look directly at the l aser beam coming from the pickup or allo w it t o str ike agai nst your skin.

The laser beam is emitted from the locatio n shown in the figure. When ch ecking the laser d iode, be sure to keep your eyes at least 30cm away from the pickup lens when the diode is tur ned on. Do not loo k directly at the laser beam.

Caution: Use of controls an d adjustments, or doing pr ocedures other than th ose specified here in, may result in hazardous radiation exposure.

Drive Mecha Assembly

Laser Beam Radiation

Laser Pickup

Turntable

WHEN OPEN. DO NOT

CAUTION

LASER RADIATION

STARE INTO BEAM.

Location: Inside Top of DVD mechanism.

1-2-1 DVD_LASER

IMPORTANT SAFETY PRECAUTIONS

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 iden tified by a # on schematics and in parts lists. Use of a substitute replacement that does not have the same safety characteristics as the recommended replacement par t might create shock, fire, and/or other h azards. The Product’s Safety is under review continuously and new instructions are issued whenever appropriate. Prior to shipment from the factory, our products are carefully inspected to confirm with the recognized product safety and electrical codes of the countries in which they are to be sold. However, in order to maintain such compli ance, it is equall y impor tant to implement the following precautions when a set is being serviced.

Precautions during Servicing

A. Parts identified by the # symbol are critical for

safety. Replace only with part number specified.

B. In addition to safety, other parts and assemblies

are specified for conformance with regulations applying to spurious radiation. These must also be replaced only with specified re pla ce men ts. Examples: RF converters, RF cables, noise blocking capacitors, and noise blocking filters, etc.

C. Use specified internal wiring. Note especially:

1)Wires covered with PVC tubing

2)Double insulated wires

3)High voltage leads

D. Use specified insulating materials for hazardous

live parts. Note especially:

1)Insulation tape

2)PVC tubing

3)Spacers

4)Insulators for transistors

E. When replacing AC primary side components

(transformers, power cord, etc.), wrap ends of wires securely about the terminals before soldering.

F. Observe that the wires do not conta ct heat produc -

ing parts (heats inks, oxide metal fil m resis tors, fusible resistors, etc.).

G. Check that replaced wires do not contact sharp

edges or pointed parts.

H. When a power cord has been replaced, check that

5 - 6 kg of force in any direction will not loosen it.

I. Also check areas surrounding repair ed loc at ion s. J. Be careful that foreign objects (screws, solder

droplets, etc.) do not remain inside the set.

K. Crimp type wire connector

The power transformer uses cri mp type con nector s which connect the power cord and the primary side of the transformer. When replacing the transformer, follow these steps carefully and precisely to prevent shock hazards. Replacement procedure

1)Remove the old connector by cutting the wires at a point close to the connector.

Important: Do not re-use a connector. (Discard it.)

2)Strip about 15 mm of the insulation from the ends of the wires. If the wires are stranded, twist the strands to avoid frayed conductors.

3)Align the lengths of the wires to be connected. Insert the wires fully into the connector.

4)Use a crimping tool to crimp the metal sleeve at its center. Be sure to crimp fully to t he complete closure of the tool.

L. When connecting or disconnecting the internal

connectors, first, disc onnect the AC plug from the AC outlet.

1-3-1 DVD_SFN1

Safety Check afte r Servicing

Examine the area surrounding the repaired location for damage or deteri oration. Observe that screws, par ts, and wires have been returned to their original positions. Afterwards, do the following tests and confirm the specified values to verify compliance with safety standards.

1. Clearance Distance

When replacing primary circuit components, confirm specified clearanc e distance (d ) and (d’) be tween soldered terminals, and between terminals and surrounding metallic parts. (See Fig. 1)

Table 1: Ratings for selected area

AC Line Voltage Clearance Distance (d) (d’)

Chassis or Secondary Conductor

Primary Circuit Terminals

dd'

120 V

Note: This table is unofficial and for reference only.

Be sure to confirm the precise values.

2. Leakage Current Test

Confirm the specified (or lower) leakage current between B (earth ground, power cord plug prongs) and externally exposed accessible parts (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.) is lower than or equal to the specified value in the table below.

Measuring Method (Power ON) :

Insert load Z between B (earth ground, power cord plug prongs) and exposed accessible parts. Use an AC voltmeter to measure across the ter minals of load Z. See Fig. 2 and the following table.

Table 2: Leakage current ratings for selected areas

AC Line Voltage Load Z Leakage Current (i) Earth Ground (B) to:

120 V

≥ 3.2mm (0.126 inches)

0.15µF CAP. & 1.5kΩ RES. Connected in parallel

Exposed Accessible Part

1.5k

i≤0.5mA Peak Exposed accessible parts

0.15 F

Earth Ground

Power Cord Plug Prongs

AC Voltmeter (High Impedance)

Fig. 1

Fig. 2

Note: This table is unofficial and for reference only. Be sure to confirm the precise values.

1-3-2 DVD_SFN1

STANDARD NOTES FOR SERVICING

Circuit Board Indications

1. The output pin of the 3 pin Regulator ICs is indicated as shown.

Top View

Input

Out

2. For other ICs, pin 1 and every fifth pin are indicated as shown.

Pin 1

3. The 1s t pin of every ma le c on nector i s indi ca ted a s shown.

Pin 1

Bottom View

How to Remove / Install Flat Pack-IC

1. Removal

With Hot-Air Flat Pack-IC Desoldering Machine:.

(1) Prepare the hot-air flat pack-IC desoldering

machine, then apply hot air to the Flat Pack-IC (about 5 to 6 seconds). (Fig. S-1-1)

Fig. S-1-1

(2) Remove the flat pack-IC with tweezers while apply-

ing the hot air.

(3) Bottom of the flat pack-IC is fixed with glue to the

CBA; when rem oving enti re flat pa ck-IC, first apply soldering iron to ce nter of the flat pack-IC and hea t up. Then remove (glue will be melted). (Fig. S-1-6)

(4) Release the flat pack-IC from the CB A using twee-

zers. (Fig. S-1-6)

Instructions for Connectors

1. When you conn ect or disconn ect t he FFC (Flexible Foil Connector) cable, be sure to first disconnect the AC cord.

2. FFC (Flexible Foil Connector) cable should be inserted parallel into the connector, not at an angle.

FFC Cable

Connector

CBA

* Be careful to avoid a short circuit.

Caution:

1. D o not supply hot air to the chip par ts around the flat pack-IC for over 6 seconds because damage to the chip parts may occur. Put masking tape around the flat pack-IC to protect other parts from damage. (Fig. S-1-2)

2. The flat pack-IC on the CBA is affixed with glue, so be careful not to brea k or damage the foil of each pin or the solder lands under the IC when removing it.

Hot-air Flat Pack-IC Desoldering

CBA

Masking Tape

Tweezers

Machine

Flat Pack-IC

Fig. S-1-2

1-4-1 DVD_NOTE

With Soldering Iron:

(1)Using desoldering braid, remove the solder from all

pins of the flat pack-IC. When you use solder flux which is applied to all pins of the flat pack-IC, you can remove it easily. (Fig. S-1-3)

Flat Pack-IC

Desoldering Braid

(4) Bottom of the flat pack-IC is fixed with glue to the

CBA; when rem oving enti re flat pa ck-IC, first apply soldering iron to ce nter of the flat pack-IC and hea t up. Then remove (glue will be melted). (Fig. S-1-6)

(5) Release the flat pack-IC from the CB A using twee-

zers. (Fig. S-1-6)

Note:

When using a solder ing iron, care must be taken to ensure that the flat pack-IC is not bei ng held by glue. When the flat pack-IC is removed from the CBA, handle it gently beca use it may be damaged if force is applied.

Soldering Iron

Fig. S-1-3

(2) Lift each lead of the flat pack-IC upward one by

one, using a shar p pin or wire to which s older will not adhere (iron wi re). When he ating the pins, us e a fine tip soldering iron or a hot air desoldering machine. (Fig. S-1-4)

Sharp Pin

Fine Tip Soldering Iron

Fig. S-1-4

(3)Bottom of the flat pack-IC is fixed with glue to the

CBA; when removing entire flat pack-IC, first apply soldering iron to c en ter of the flat pack-IC and heat up. Then remove (glue will be melted). (Fig. S-1-6)

(4)Release the flat pa ck-IC from the CBA us ing twee-

zers. (Fig. S-1-6)

With Iron Wire:

(1)Using desoldering braid, remove the solder from all

pins of the flat pack-IC. When you use solder flux which is applied to all pins of the flat pack-IC, you can remove it easily. (Fig. S-1-3)

(2) Affix the wire to a workbench or solid mounting

point, as shown in Fig. S-1-5.

(3) While heating the pins using a fine tip soldering

iron or hot air blower, pull up the wire as the solde r melts so as to lift the IC leads from the CBA contact pads as shown in Fig. S-1-5

To Solid Mounting Point

CBA

Tweezers

Hot Air Blower

Iron Wire

Soldering Iron

Fig. S-1-5

Fine Tip Soldering Iron

Flat Pack-IC

Fig. S-1-6

1-4-2 DVD_NOTE

2. Installation

(1) Using desoldering braid, remove the solder from

the foil of each pin of the flat pack-IC on the CBA so you can install a replacement fla t pack-IC more easily.

(2) The “I” mark on the flat pack-IC indicates pin 1.

(See Fig. S-1-7.) Be s ure this mark matches the 1 on the PCB when positioni ng for installation. Then presolder the four cor ners of the fl at pack-IC. (See Fig. S-1-8.)

(3)Solder all pins of the flat pack-IC. Be sure that none

of the pins have solder bridges.

Example :

Pin 1 of the Flat Pack-IC is indicated by a " " mark.

Fig. S-1-7

Instructions for Handling Semi-conductors

Electrostatic breakdown of the semi-conductors may occur due to a potential di fference caused by electrostatic charge during unpacking or repair work.

1. Ground for Human Body

Be sure to wear a groun ding band (1M Ω) that is properly grounded to re move any static electr ici ty that may be charged on the body.

2. Ground for Workbench

(1) Be sure to place a conductive sheet or copper plate

with proper grounding (1MΩ) on the workbench or other surface, where the semi-conductors are to be placed. Because the static electricity charge on clothing will not escape thr ough the body grounding band, be careful t o avoid contacting semi-conductors with your clothing.

< Incorrect >

CBA

Presolder

Flat Pack-IC

Fig. S-1-8

CBA

< Correct >

Grounding Band

1MΩ

CBA

1MΩ

Conductive Sheet or Copper Plate

1-4-3 DVD_NOTE

PREPARATION FOR SERVICING

How to Enter the Service Mode

About Optical Sensors

Caution:

An optical sensor system is used for the Tape Start and End Sensors on this equipment. Carefully read and follow the instructions below. Otherwise the unit may operate erratically.

What to do for preparation

Insert a tap e into the Deck Mechan ism Assembly and press the PLAY button. The tape will be loaded into the Deck Mechanism Assembly. Make sure the power is on, connect TP502 (SENSOR INHIBITION) to GND. This will stop the functi on of Tape Star t Sensor, Tape End Sensor and Reel Sensor s. (If these TPs are connected before plugging in the unit, the function of the sensors will stay valid.) See Fig. 1.

Q503

Q504

TP502

S-INH

Fig. 1

Note: Because the Tape E nd Sensor s are in active, do

not run a tape all the way to the start or the en d of the tape to avoid tape damage.

1-5-1 H9400PFS

e or er

re rd

h er

OPERATING CONTROLS AND FUNCTIONS

FRONT PANEL

1 2 3 4 768

OPEN/CLOSE

STOP

FWD

REV PLAY

2324 22 20

PLAY

DISC IN

REMOTE CONTROL

POWER

SPEED AUDIO

123

456

789

010

DVD VCR

DISPLAY

SKIP/CH.

VCR/TV

SLOW

PAUSE

33 35

RECORD

SETUP

1. Disc loading tray

2. OPEN/CLOSE Button

Press to insert discs into or remove them from the tray.

3. DVD OUTPUT Light (Green)

This light appears when the DVD output mode is selected. You can only watch DVDs when the green DVD OUTPUT light is on. To make the green DVD OUTPUT light come on, press DVD on the remote control or OUTPUT on the front panel.

4. VCR OUTPUT Light (Green)

This light appears when the VCR output mode is selected. You can only watch tapes when the green VCR OUTPUT light is on. To make the green VCR OUTPUT light come on, VCR on the remote control or OUTPUT on the front panel.

5. CASSETTE COMPARTMENT

SUBTITLE

T-SET

ZOOMMODE

ANGLE

PLAY

STOP

ENTER

MODE

REPEAT

RETURNTITLE

CLEAR/

C.RESET

A-B

OUTPUT

DVD

VCR

TIMER REC

REW

REC

18171615141312

6. POWER Button

Press to turn the power on and off.

7. POWER Light (red)

Light appears when the power is on.

8. STOP/EJECT Button (VCR) EJECT Button

Press to remove the tape from the VCR.

STOP Button

Press to stop the tape motion.

9. PLAY Button(VCR)

Press to begin playback.

10. CH(ANNEL) Buttons

In VCR mode, press to change TV channels on th VCR; press to adjust the tracking during normal slow motion playback; press to remove vertical jitt in a Still picture.

11. AUDIO In Jack

Connect an audio cable coming from the audio o jack of a camcorder, another VCR, or an audio sourc here.

12. VIDEO In Jack

Connect a video cable coming from the video o jack of a camcorder, another VCR, or a video sourc (laser disc player, camcorder, etc.) here.

13. FF Button (VCR)

Press to rapidly advance the tape, or view the pictu rapidly in forward during playback. (Forwa Search).

14. REW Button (VCR)

Press to rewind the tape, or to view the picture rapi ly in reverse during the playback mode (Rewin Search).

15. REC Button

Press once to start a recording. Press repeatedly start a One-Touch Recording.

16. REC Light

Light appears during recording.

17. TIMER Light

Light appears when the DVD/VCR is in standb mode for a timer recording or during a One-Touc Recording. It flashes if T-SET is pressed for a tim recording, but there is no tape in the DVD/VCR. flashes when all timer recordings or One-Touc Recordings are finished.

VIDEO AUDIO

POWER

CH-UP

STOP/EJECT

PLAY

CH-DOWN

921

1-6-1 H9411IB

8. OUTPUT Button

1 2

2 2

r o .

t. n

Press to select DVD mode or VCR mode.

●You can switch the output mode either by pressing

OUTPUT on the front panel, or by pressing DVD or VCR on the remote control. However, if you

press OUTPUT on the front panel first, you need to re-select the corresponding mode by pressing DVD or VCR on the remote control.

9. Remote Sensor Window

0. DISC IN Light (green)

Light appears when a disc is in the DVD Player.

1. PLAY Light (green)

Light appears during Disc playback.

2. FWD Button (DVD)

Press to fast forward the Disc. Press PAUSE, then press this button to begin slow motion playback. Press this button repeatedly to change the forward speed of slow motion. Press to skip Chapters or Tracks.

3. PLAY Button (DVD)

Press to begin playback.

4. REV Button (DVD)

Press to view the DVD picture in fast reverse motion or to reverse playback of an Audio CD. Press to skip Chapters or Tracks.

5. STOP Button (DVD)

Stops operation of the disc.

6. SPEED Button

Press to select the VCR’s recording speed (SP or SLP)

7. POWER Button

Press to turn the power on and off.

8. Number Buttons

●DVD mode

Press to select numbered items in a menu.

+10

Use this button to enter number 10 and above.

●VCR mode

Press to select TV channels on the VCR. To select channels, enter channel numbers as a two-digit number for the quickest results. For example, to select channel 6, press 0 then 6.

9. DISPLAY Button

●DVD mode

Press to access or remove the display screen during DVD or Audio CD playback.

●VCR mode

Press to access or remove the VCR’ s on-screen status display.

0. DVD Button

Press to select DVD mode for the remote control.

●You can switch the OUTPUT mode either by

pressing OUTPUT on the front panel, or by pressing DVD or VCR on the remote control. However, if you

press OUTPUT on the front panel first, you need to re-select the corresponding mode by pressing DVD or VCR on the remote control.

1. h Button

●DVD mode

Press to view the DVD picture in fast reverse motion. slow motion playback. Press this button repeatedly to change the reverse speed of slow motion.

●VCR mode

Press to rewind the tape, or to view the picture rapidly in reverse during the playback mode (Rewind Search).

Press PAUSE, then press this button to begin

32. STOP Button

●DVD mode

Press to stop the disc motion.

●VCR mode

Press to stop the tape motion.

33. RECORD Button

Press once to start a recording.

34. MENU Button

●DVD mode

Press to display the menu of the Disc.

●VCR mode

Press to access the VCR menu.

35. TITLE Button

36. SETUP Button

Press to enter DVD player setup mode.

37. ZOOM Button

Enlarges part of a DVD-reproduced image.

38. MODE Button

Activates program playback or random playbac mode when playing CDs or MP3. Sets Black leve and virtual surround.

39. SUBTITLE Button

Press to select the desired subtitle language.

39. T-SET Button

Press to put the VCR into standby mode for a time recording.

40. ANGLE Button

Press to change the camera angle to see the sequenc being played back from a different angle.

41. REPEAT Button

Repeats playback of the current disc, title, chapter o track.

42. A-B REPEAT Button

Repeats playback of a selected section.

43. SEARCH MODE Button

●DVD mode

Press to access or remove the Search display which allows you to go directly to a specifi Title/Chapter/Track/Time.

●VCR mode

Press to perform a Time Search or an Index Search

44. CLEAR/C.RESET Button

●DVD mode

Press to reset the setting.

●VCR mode

Press to reset the counter. Press to exit from th MENU screen.

45. RETURN Button

●DVD mode

Returns to the previous operation.

46. Arrow Buttons

Use when making settings while watching the dis play on a TV screen.

●DVD mode

Moves the cursor and determines its position.

●VCR mode

p/o Buttons

Press to enter digits when setting program (Fo example: setting clock or timer program). Press t select the setting modes from the on screen menu

B Button

When setting program (For example: setting cloc or timer program), press to determine your selec tion and proceed to the next step you want to inpu Press to determine the setting modes from the o screen menu. Press to add or delete channel num bers during channel preset.

1-6-2 H9411IB

s Button

e e

n aht

Press to cancel a setting of timer program. Press to correct digits when setting program (For example: setting clock or timer program). Press to add or delete channel numbers during channel preset.

7. ENTER Button

●DVD mode

Press to accept a setting.

8. g Button

●DVD mode

Press to fast forward the Disc. Press PAUSE, then press this button to begin slow motion playback. Press this button repeatedly to change the forward speed of slow motion.

●VCR mode

Press to rapidly advance the tape, or view the picture rapidly in forward during playback (Forward Search).

9. PLAY Button

●DVD mode

Press to begin playback.

●VCR mode

Press to begin playback.

0. VCR Button

Press to select VCR mode for the remote control.

●You can switch the OUTPUT mode either by

pressing OUTPUT on the front panel, or by pressing DVD or VCR on the remote control. However, if you

press OUTPUT on the front panel first, you need to re-select the corresponding mode by pressing DVD or VCR on the remote control.

51. PAUSE Button

●DVD mode

Press to pause Disc playback. Press repeatedly advance the DVD picture step by step (or on frame at a time).

●VCR mode

While recording, press to temporarily stop th recording (pause). Press a second time to resum normal recording. You can not pause a One-Touc Recording. Or, press during tape playback freeze the picture. Press to advance the picture on frame at a time during still mode.

52. SLOW Button

During tape playback, press to view the video tape slow motion. Press again to resume normal playbac This button does not affect DVD playback.

53. VCR/TV Button

Use to select VCR or TV position.

●VCR Position

To view playback, to monitor video recording or watch TV using the VCR tuner.

●TV Position

To watch TVor to view one program while recor ing another.

54. SKIP/CH. Buttons

●DVD mode

Press to skip Chapters or Tracks.

●VCR mode

Press to change TV channels on the VCR.

55. AUDIO Button

Press to select a desired audio language or soun mode.

Notes

To use the remote control to operate the DVD/VC COMBINATION UNIT and its features, press DVD o the remote control before pressing other DVD oper tion button. Verify that the green DVD OUTPUT Lig is on. To use the remote control to operate the VCR and i features, press VCR on the remote control befo pressing other VCR operation button. Verify that th green VCR OUTPUT Light is on.

1-6-3 H9411IB

e p-

S-

REAR VIEW

5756 58 59 60

DVD/VCR VCR DVD

AUDIO OUT

ANT-IN

AUDIO IN

ANT-OUT

VIDEO OUT

VIDEO IN

S-VIDEO

OUT

COMPONENT VIDEO OUT

CbCrL

AUDIO

OUT

COAXIAL

DIGITAL

AUDIO OUT

6. ANT-IN (Antenna In) Jack

Connect your antenna, Cable Box, or Satellite decoder box.

7. DVD/VCR AUDIO OUT Jacks

Connect the supplied audio cables here and to the Audio In jacks of a television or other audio equipment.

8. AUDIO IN Jack

Connect an audio cable coming from the audio out jack of a camcorder, another VCR, or an audio source here.

9. AC Power Cord

Connect to a standard AC outlet to supply power to the DVD/VCR COMBINATION UNIT.

DVD Playback only

0. COMPONENT VIDEO OUT Jacks

Connect optional component video cables here and to the component Video In jacks of a television.

1. COAXIAL Jack

Connect an optional coaxial digital audio cable here and to the Coaxial Digital Audio In jack of a decoder or audio receiver.

62. DVD ANALOG AUDIO OUT Jacks

Connect the supplied audio cables here and to th Audio In jacks of a television or other audio equi ment (DVD only).

63. S-VIDEO OUT Jack

Connect an optional S-Video cable here and to the Video In jack of a television. (DVD only).

64. VIDEO IN Jack

Connect a cable coming from the video out jack of camcorder, another VCR, or an audio-visual sourc (laser disc player, video disc player, etc.) here.

65. DVD/VCR VIDEO OUT Jack

Connect the yellow video cable (supplied) here an to the TV’s Video In jack.

66. ANT-OUT (Antenna Out) Jack

Use the supplied RF coaxial cable to connect th jack to the ANTENNAIN Jack on your TV.

Notes

The S-VIDEO OUT jack, COAXIAL jack, and COM PONENT VIDEO OUT jack are only useful in DVD mode.

Caution: Do not touch the inner pins of the jacks on the rear panel. Electrostatic discharge may

cause permanent damage to the player.

LOADING THE BATTERIES

. Open the battery compartment cover.

. Insert two AA batteries (supplied), with each one oriented correctly.

. Close the cover.

otes

Do not mix alkaline and manganese batteries. Do not mix old and new batteries.

1-6-4 H9411IB

CABINET DISASSEMBLY INSTRUCTIONS

1. Disassembly Flowchart

This flowchart indicates the disassembly steps to gain access to item(s) to be ser vic ed. When reasse mbling, follow the steps in reverse order. Bend, route, and dress the cables as they were originally.

[1] Top Cover

[2] Front

Assembly

[16] Side

Bracket

[5] DVD Main

CBA Unit

[13] DVD OP/CL

CBA

[12] Main CBA

[3] Top Bracket

[4] DVD Mecha

Assembly

[6] Rear Unit

[10] VCR

Chassis Unit

[9] Rear Panel

[8] PCB Bracket

[7] Power

Supply CBA

[11] Deck

Assembly

REMOVAL

ID/

LOC.

No.

[7]

[8]

[9]

[10]

[11]

[12] Ma in CBA D8 ---------- -

[13]

PART

Power Supply CBA

PCB Bracket

Rear Panel VCR

Chassis Unit

Deck Assembly

Open/ Close CBA

REMOVE/*UNHOOK/

Fig.

UNLOCK/RELEASE/

No.

UNPLUG/DESOLDER

D6 4(S-8) -

D6 3(S-9) -

D6 ---------- -

D7 5(S-10), 4(S-11) -

D8 Desolder, 2(S-12) 4,5

D8 ---------- -

Note

[14] Function

CBA

[15] Deck

Pedestal

2. Disassembly Method

REMOVAL

ID/

LOC.

No.

[1] Top Cover D1 7(S-1) -

[2]

[3]

[4]

[5]

PART

Front Assembly

Top Bracket

DVD Mecha Assembly

DVD Main CBA Unit

REMOVE/*UNHOOK/

Fig.

UNLOCK/RELEASE/

No.

UNPLUG/DESOLDER

D2 (S-3), *7(L-1)

D2 4(S-2) -

3(S-4), *CN401,

*CN601,*CN302

2(S-5), *CN201,

*CN301

Note

1 1-1 1-2

2 2-1 2-2

[14]

[15]

[16]

Note:

(1): Identification (location) No. of parts in the figures (2):Name of the part (3):Figure Number for reference (4): Identification of parts to be removed, unhooked,

(5): Refer to “Reference Notes.”

Function CBA

Deck Pedestal

Side Bracket

↓

(1)

unlocked, released, unplugged, unclamped, or desoldered. P=Spring, L=Locking Tab, S=Screw, CN=Connector *=Unhook, Unlock, Release, Unplug, or Desolder e.g. 2(S-2) = two Screws (S-2), 2(L-2) = two Locking Tabs (L-2)

↓

(2)

D8 ---------- -

D9 7(S-13) -

D9 (S-14) -

↓

(3)

↓

(4)

↓

(5)

[6] Rear Unit D5

5(S-6), 3(S-7), CN1005

1-7-1 H9411DC

Reference Notes

CAUTION 1: Locking Tabs (L-1) are fragil e. Be caref ul not to break them.

1-1. Remove Screw (S-3). 1-2. Release seven Locking Tabs (L-1) (to do this, first

release five Locking Tabs (A) at th e side and top, and then release two Locking Tabs (B) at the bottom.)

CAUTION 2: Electrostatic breakdown of the laser diode in the optical system block may occur as a potential difference caused by electrostatic charge accumulated on cloth, human body etc., during unpacking or repair work.

To avoid damage of pickup follow next procedures. 2-1. Short the three short lands of FPC cable with sol-

der before removing the FFC cable (CN201) from it. If you disconnect the FFC ca ble (CN201), the laser diode of pickup will be destroyed. (Fig. D4)

2-2. Disconnect Connector (CN301). Remove two

Screws (S-5) and lift the DVD Main CBA Unit. (Fig. D4)

CAUTION 3: When reassembling, confirm the FFC cable (CN201) is conne cted compl etely. Then remove the solder from the three short lands of FPC cable. (Fig. D4)

4. When re ass em bling, s old er wire j ump er s a s s hown in Fig. D8.

5. Before installing the Deck Assembly, be sure to place the pin of LD-SW on M ain CBA as shown in Fig. D8. Then, install the Deck Assembly while aligning the hole of Cam Gear with the pin of LDSW, the shaft of Cam Gear with the hole of LD -S W as shown in Fig. D8.

(L-1)

(A)

(L-1)

(S-3)

(B)

[2] Front Assembly

CN601

CN302

(S-4)

CN401

(S-2)

[3] T op Bracket

(S-2)

(A)

(L-1)

(A)

Fig. D2

(S-4)

[4] DVD Mecha Assembly

(S-1)

[1] T op Cover

(S-1)

Fig. D1

Fig. D3

(S-1)

1-7-2 H9411DC

(S-5)

CN301

CN201

(S-5)

[5] DVD Main CBA Unit

DVD Mecha

[6] Rear Unit

(S-7)

(S-6)

(S-7)

(S-6)

CN1005

(S-7)

Short the three short lands by soldering

Connector

View for A

Slide

Pickup Unit

Short the three short lands by soldering

View for B

FPC Cable

View for C

Fig. D4

(S-8)

(S-11)

[10] VCR Chassis Unit

[8] PCB Bracket [7] Power Supply CBA

(S-11)

(S-10)

Fig. D5

(S-9)

[9] Rear Panel

Fig. D6

(S-10)

(S-11)

(S-10)

(S-11)

Fig. D7

1-7-3 H9411DC

FE Head

[11] Deck Assembly

Desolder

Lead with blue stripe

[13] DVD OP/CL CBA

(S-12)

[14] Function CBA

Cylinder Assembly

AC Head Assembly

[12] Main CBA

(S-12)

Desolder

[11] Deck Assembly

Shaft

LD-SW

Lead with blue stripe

SW507 LD-SW

[12] Main CBA

Cam Gear

Hole

[12] Main CBA

From AC Head Assembly

From Capstan Motor Assembly

From Cylinder Assembly

Printing side

Desolder

Lead with blue stripe

Desolder

BOTT OM VIEW

Lead connections of Deck Assembly and Main CBA

From FE Head

Lead with white stripe

Fig. D8

1-7-4 H9411DC

[15] Deck Pedestal

(S-13)

(S-14)

[16] Side Bracket

(S-13)

HOW TO MANUAL EJECT

Fig. D9

1. Remove the Top Case.

2. Rotate this roulette in the direction of the arrow as shown below.

Top Cover

DVD Mecha

Tray

Deck Assembly

Rotate this roulette in the direction of the arrow

1-7-5 H9411DC

ELECTRICAL ADJUSTMENT INSTRUCTIONS

General Note: "CBA" is an abbreviation for "Circuit Board Assembly."

NOTE:

1.Electric al adjust ments are required a fter repla cing circuit components and certain mechanical parts. It is importan t to do these adjustments onl y after all repairs and replacements have been completed. Also, do not attempt these adjus tments u nle ss the proper equipment is available.

2.To perform th ese alignment / confirmation proce dures, make sure that the tracking control is set in the center position: P ress ei ther "CHA NNEL L5 ??" or "CHANNEL K" button on th e front panel first , then the "PLAY" button on the front panel.

CH1

CH2

Figure 1

EXT. Syncronize Trigger Point

1.0H

6.5H±1H (412.7µs±60µs) Switching Pulse

0.5H V-Sync

Test Equipment Required

1.Oscilloscope: Dual-trace with 10:1 probe, V-Range: 0.001~50V/Div., F-Range: DC~AC-20MHz

2.Alignment Tape (FL8A)

Head Switching Po sition Adjustment

Purpose:

To determine the Head Switching point during playback.

Symptom of Mi sadjustm e n t:

May cause Head Switching noise or ver tical jitter in the picture.

Test point Adj.Point Mode Input

TP751(V-OUT)

TP302(RF-SW)

GND

Tape

VR501

(Switching Point)

(MAIN CBA)

Measurement

Equipment

PLAY

(SP)

Spec.

Reference Notes:

Playback the Alignment tape and adjust VR501 so that the V-sync front edge of the CH1 video output waveform is at the 6.5H(412 .7µs) del ayed position from the rising edge of the CH2 head switching pulse waveform.

-----

FL8A Oscilloscope

Connections of Measurement Equipment

TP751

Main CBA

GND

TP302

6.5H±1H

(412.7µs±60µs)

Oscilloscope

CH1 CH2 Trig. (+)

1-8-1 H9400EA

FIRMWARE RENEWAL MODE

1. Turn the power on and remove the disc on the tray.

2. To put the DVD player into version up mode, press [9], [8], [7], [6], and [SEARCH MO DE] but tons on the remote control unit in that order. The tray will open automatically. Fig. a appears on the screen and Fig. b appears on the VFD.

F/W Version Up Mode

Please insert a DISC

for F/W Version Up.

EXIT: POWER

Fig. a Version Up Mode Screen

Fig. b VFD in Version Up Mode

The DVD player can also enter the version up mode with the tray open. In this case, Fig. a will be shown on the screen while the tray is open.

3. Load the disc for version up.

4. The DVD player enters the F/W version up mode automatically. Fig. c appears on the screen and Fig. d appears on the VFD.

F/W Version Up Mode

VERSION : ******** Reading...(*2)

5. A fter programming is fini shed, the tray opens au tomatically. Fig. e appears on the screen and the checksum in (*3) of Fig. e appears on the VFD. (Fig. f)

F/W Version Up Mode

VERSION : ******** Completed

SUM : 7abc (*3)

Fig. e Completed Program Mode Screen

Fig. f VFD upon Finishing the Programming Mode (Example)

At this time, no buttons are available.

6. Unplug the AC cord from the AC outlet. Then plug it again.

7. Turn the power on by pressing the power button and the tray will close.

8. Press [1], [2], [3], [4], and [DISPLAY] buttons on the remote control unit in that order. Fig. g appears on the screen.

model: ****** Ver: **** Region: **

1: VFD TEST 2: TT REPEAT PLAY

3: EEPROM CLEAR 4: MEASUREMENT SERVO 5: DISC READ CHECK 6: MECHA CHECK 7: DISC INFO 8: ERROR RATE

EXIT: POWERRETURN: -----

EXIT: POWER

Fig. c Programming Mode Screen

Fig. d VFD in Programming Mode (Example)

The appearance shown in (*2) of Fig. c is described as follows:

AppearanceNo. State

Reading... Sending files into the memory

Erasing... Erasing previous version data

Programming...

3 Writing new version data

Fig. g

9. Press [3] button on the remote control unit. Fig. h appears on the screen.

model: ****** Ver: **** Region: **

TEST 3: EEPROM CLEAR EEPROM CLEAR: OK

EXIT: POWERRETURN: -----

Fig. h

10.To finish this mode, press [POWER] button.

1-9-1 H9400TEST

Servo/System Control Block Diagram

(DECK ASSEMBLY)

AC HEAD ASSEMBLY

CN504

CONTROL HEAD

CL504

5 CTL(+) 6 CTL(-)

MAIN CBA

D555 S-LED

AL+5V

BLOCK DIAGRAMS <VCR SECTION>

IC501

(SERVO/SYSTEM CONTROL)

FROM/TO DVD SYSTEM CONTROL BLOCK DIAGRAM <DVD SECTION>

REMOTE-VIDEO

SW512 LD-SW

TP513

CTL

AL+5V

REMOTE-VIDEO

CTL

CTL(+)

CTL(-)

KEY- 1

KEY- 2

REC-IND

TIMER-IND 75

P-ON+9V

KEY SWITCH

TP502

S-INH

AL+5V

1 1POWER-LED 2 2KEY-1

Q565

Q563

CL508CL509

FUNCTION CBA

D565

REC

D564 TIMER

D566 VCR

D561

KEY SWITCH

POWER

CYLINDER ASSEMBLY

PG SENSOR

DRUM MOTOR

LOADING MOTOR

Q504

ST-S

SENSOR CBA

Q503

END-S

SENSOR CBA

CAPSTAN MOTOR

TP506

ST-S

CL502

1 AL+12V 2 P-ON+5V 3 C-FG

C-F/R

C-CONT

GND

LM-FWD/REV

D-CONT

D-PFG

GND

AL+12V

AL+15V

TP505

T-REEL

Q506

T-REEL

TP507

END-S

TIMER+5V

VR501 SW-POINT

AL+12V P-ON+5V

AL+12V AL+15V

AL+5V

Q501

RESET

SW511

REC SW

LD-SW68

ST-S

END-S T-REEL

RESET

PG-DELAY

REC-

SAF-SW

C-FG C-F/R

C-CONT

LM-FWD/REV

D-CONT29 D-PFG

VCR-IND 70

DVD-IND 71

DVD-POWER

VCR/TV

IIC-BUS SDA

A-MUTE-H

D-REC-H

D-PB-L

INSEL/ST-SL

C-SYNC

D-V SYNC

V-ENV

C-ROTA

RF-SW

TRICK-H

H-A-SW

H-A-COMP

OUTPUT-SELECT

P-ON-L

P-DOWN-L

13IIC-BUS SCL 12

23 16 41 19 64 78 18 11

14SP/LP/SLP 79 80

Q566

Q567

WF12

WF13

OUTPUT-SELECT

D567 DVD

DVD POWER

TU701(TUNER UNIT)

CLOCK

DATA

VCR/TV5

A-MUTE-H

D-REC-H

D-PB-L

D-REC-H

D-PB-L

INSEL/ST-SL

C-SYNC

D-V SYNC

V-ENV

C-ROTA

RF-SW

TRICK-H

SP/LP/SLP

H-A-SW

H-A-COMP

P-ON-L

P-DOWN-L

TO DVD SYSTEM CONTROL BLOCK DIAGRAM <DVD SECTION>

TO AUDIO BLOCK

FROM/TO VIDEO BLOCK

FROM/TO POWER SUPPLY BLOCK

1-10-1 1-10-2 H9411BLS

Video Block Diagram

TP751

V-OUT

JK751 V-OUT

TU701

VIDEO IN

VIDEO OUT

JK752 REAR V-IN

WF11

WF15

WF1

FROM SERVO/SYSTEM CONTROL BLOCK DIAGRAM

Q391

BUFFER

OUTPUT SELECT

IC301

Q760

(Y/C PROCESS)

TUNER

(OUTPUT SELECT)

IC751

SW CTL

9 10 11

VCR DVD

REC VIDEO SIGNAL PB VIDEO SIGNAL DVD VIDEO SIGNAL MODE: SP/REC

IC501

(OSD)

MAIN CBA

OSD CHARACTER

MIX

6dB

AMP

45 47 49 44

CCD 1H

DELAY

Q301

BUFFER

FROM DVD VIDEO/AUDIO BLOCK DIAGRAM <DVD SECTION>

JK753 FRONT V-IN

(DECK ASSEMBLY)

DVD-VIDEO

FROM/TO SERVO/SYSTEM CONTROL BLOCK DIAGRAM

VIDEO (R)-1 HEAD

VIDEO (L)-1 HEAD

VIDEO (L)-2 HEAD

VIDEO (R)-2 HEAD

CYLINDER ASSEMBLY

INSEL/ST-SL D-PB-L

D-REC-H

TRICK-H C-SYNC

C-ROTA D-V SYNC SP/LP/SLP

REAR

FRONT

71 16

REC/EE/PB

D-REC-H

TRICK

73 34

C-ROTA

D-V SYNC

SP/LP/SLP

V-AGC

SYNC SEPA

CL253

V(R)-1

V-COM

V(L)-1

V(L)-2

V-COM

V(R)-2

FROM/TO SERVO/SYSTEM CONTROL BLOCK DIAGRAM

FBC

R P

Y/C MIX

TP302

RF-SW

WF2

RF-SW V-ENV H-A-SW H-A-COMP

91 90 89 88 85 84 83 82

13 93 15

H-A-COMP

DOC YNR Y/C COMB

CHROMINANCE

SIGNAL PROCESS

R L

L R

LP/EP

HPF

LUMINANCE

SIGNAL PROCESS

AGC AMP

ENV DET

TP301

C-PB

WF3

1-10-3 1-10-4 H9411BLV

Audio Block Diagram

REAR

TU701

AUDIO-OUT

MOD-A

A-OUT (R)

A-OUT (L)

A-OUT (R)

A-OUT (L)

JK752 A-IN

JK751

JK756

WF14

WF10

Q763

BUFFER

Q762

BUFFER

TP753

A-OUT (R)

TP754

A-OUT (L)

Q760

OUTPUT SELECT

IC751

(OUTPUT SELECT)

DVD VCR

SW CTL

9 10 11

FROM SERVO/SYSTEM CONTOL BLOCK DIAGRAM

12 13

PB-AUDIO SIGNAL REC-AUDIO SIGNAL Mode : SP/REC

DVD AUDIO SIGNAL

MAIN CBA

DVD-A(R) DVD-A(L)

5 3

IC301

(AUDIO PROCESS) 76

TUNER

LINE 1

LINE 2

ALC

FROM DVD AUDIO BLOCK DIAGRAM <DVD SECTION>

FRONT

JK755 A-IN

(DECK ASSEMBLY)

AUDIO HEAD

AUDIO ERASE HEAD

FULL ERASE HEAD

AC HEAD ASSEMBLY

FE HEAD

CL504 4 A-PB/REC 3 A-COM 1 AE-H 2 AE-H/FE-H

CL501 1 FE-H 2 FE-H-GND

Q422

BIAS OSC

P-ON+5V

Q423 (PB=ON)

Q425

Q424 (PB=ON)

Q421

SWITCHING D-REC OFF

P-ON+5V

EQ AMP

SP/LP-ON

AUTO BIAS

100

LINE AMP

REC AMP

D-REC-H

11 12

MUTE

REC/EE/PB

D-PB-L

A-MUTE-H

D-REC-H

FROM SERVO/SYSTEM CONTROL BLOCK DIAGRAM

1-10-5 1-10-6 H9411BLA

Power Supply Block Diagram

NOTE : The voltage for parts in hot circuit is measured using hot GND as a common terminal.

HOT CIRCUIT. BE CAREFUL.

A V

CAUTION

FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE. ATTENTION : POUR UNE PROTECTION CONTINUE LES RISQES D'INCELE N'UTILISER QUE DES FUSIBLE DE MEMO TYPE.

RISK OF FIRE

"This symbol means fast operating fuse." "Ce symbole reprèsente un fusible à fusion rapide."

-REPLACE FUSE AS MARKED.

CAUTION !

Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. If Main Fuse (F001) is blown, check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply. Otherwise it may cause some components in the power supply circuit to fail.

AC1001

A V

F1001 1A 250V

L1001

LINE

FILTER

D1001 - D1004

BRIDGE

RECTIFIER

Q1003

Q1001

T001

CL1002

1 1AL+44V 2 2P-DOWN-L 3 3AL+12V 5 5AL+5V 7 7AL-24V

CL1006 CL1007

1 1AL+2.35V 3 3AL+4V

CL1004 CN1005

CN1003

CN1005 CN1003

Q055

Q1005

IC1004

+3.3V REG.

Q057

Q052

Q056

Q1006

Q1011

AL+15V AL+33V P-DOWN-L AL+12V P-ON+9V AL+5V TIMER+5V AL-24V P-ON-L P-ON+5V

-FL DVD-P-ON+3.3V DVD-P-ON+5V EV+3.3V DVD-P-ON+12V

HOT

POWER SUPPLY CBA

Q1008

IC1001

ERROR VOLTAGE DET

IC1006

(SHUNT REGULATOR)

REG

JUNCTION CBA

IC1002

+1.5V REG.

MAIN CBA

Q1004

CN1001

1 EV+1.5V 2 EV+1.5V 3 EV+1.5V 4 EV+3.3V

5 EV+3.3V 13 DVD-P-ON+5V 14 EV+9V 15 EV+9V 17 DVD-P-ON+3.3V 19 PWRCON

TO DVD MAIN CBA UNIT CN401

H9411BLP1-10-7 1-10-8

DVD System Control/Servo Block Diagram

BLOCK DIAGRAMS <DVD SECTION>

TO DVD VIDEO/ AUDIO BLOCK DIAGRAM

PICK-UP UNIT

FOCUS SERVO SIGNAL TRACKING SERVO SIGNAL

IC451

(CLOCK GENERATOR)

1/4

MULTI PLL

PLL2

IC301

(SERVO DRIVE)

FOCUS

ACTUATOR DRIVE

PCM-SCLK DVD-A-MUTE ADAC-MD ADAC-MC ADAC-ML

FSTS

CN201

FS(+) 18

FS(-) 19

TS(+) 20

TS(-) 17

X'TAL OSC

SLED SERVO SIGNAL SPINDLE SERVO SIGNAL

IC101

(MICRO CONTROLLER)

EXT CLOCK

172

CLK33M BE CLOCK

170

X451

36.864MHz OSC

25 24

1792FSEL

DVD-A-MUTE ADAC-MD

51 50 ADAC-MC 96 ADAC-ML

152

FOCUS DRIVE

POWER

/CLOSE

PLAY

STOP

OPEN

48 47 62 94

CN302

SW2001

DVD OPEN /CLOSE

OPEN/CLOSE

CL2002CL2003

DVD

AL+5V

D2001

DISC IN

Q2002

D2002

PLAY

CL2007 CL2006

STOP 11 SKIP-DOWN 22

Q2003

OPEN/CLOSE CBA

SW2005

STOP

SW2006

SKIP DOWN

DVD SW CBA

CN2001

PLAY 11 STOP 22 POWER 33 OPEN/CLOSE 44

SW2003

SKIP-UP

SW2002

PLAY

SPINDLE MOTOR

SLED MOTOR

FG CBA

FG SENSOR

TRAY-OUT

TRAY-IN

CN3002 CN301

DRIVE CBA

TRACKING

ACTUATOR DRIVE

SPINDLE

MOTOR DRIVE

SLED

MOTOR DRIVE

3SP(+) 4SP(-) 5TRAY-OUT 6TRAY-IN 7GND 8SL(-) 9SL(+) 1FG-IN

IC202

(OP AMP)

12 14

DVD MAIN CBA UNIT

+3.3V

2 3

IC461

RESET

5 4

TRACKING

150

DRIVE

SPDL71

SLD70

RESET68

TRAY-OUT

TRAY-IN

FG-IN

SKIP-UP

FP-STB

FP-DIN 54

FP-CLK

REMOTE-DVD

55 59

53 61

CN401

SKIP-UP FP-STB FP-DIN 1818 FP-CLK REMOTE-DVD 2222

Q2001

DVD-POWER

CN1001

2020 1616

2121

REMOTE-VIDEO

RM2001

REMOTE SENSOR

MAIN CBA

FROM SERVO /SYSTEM CONTROL BLOCK DIAGRAM <VCR SECTION>

FROM/TO SERVO /SYSTEM CONTROL BLOCK DIAGRAM <VCR SECTION>

1-10-9

1-10-10

H9411BLSD

Digital Signal Process Block Diagram

IC102 (SDRAM) IC101 (MICRO CONTROLLER)

DETECTOR

SDRAM

C 6 D 7 A 8 B 5

F 10

E 2

CD/DVD 9

~~~

CN201

210

235

184

205

247

256

124 125 122 123 128 129 126 127 131 130

~~~

SDRAM ADDRESS(0-10)SDRAM ADDRESS(0-10)

SDRAM DATA(0-31)SDRAM DATA(0-31)

RF SIGNAL PROCESS CIRCUIT

EXTERNAL MEMORY I/F

DVD/CD FORMATTER

ECC

DECODER I/F

DMA

BCU

STREAM I/F

UMAC

DATA(VIDEO/AUDIO) SIGNAL DVD VIDEO SIGNAL

DSP DECODER

PIXEL OPERATION

I/O PROCESSOR

SERIAL

DATA ROM

INST. ROM

DATA ROM

INST. ROM

DATA ROM

INST. ROM

AUDIO I/F

DATA(AUDIO) SIGNAL

181 175 176 174

SPDIF

PCM-BCK

PCM-DATA0

PCM-LRCLK

TO DVD VIDEO /AUDIO BLOCK DIAGRAM

PICK UP UNIT

CD-LD 12

DVD-LD 14

PD-MONI 13

GND(DVD-PD)

GND(CD-PD)

GND(LD)

CN201

15 16 11

Q253,Q254

AMP

Q251,Q252

1 3

CD DVD

IC201

(SW)

DVD MAIN CBA UNIT

135 133 132 134

INTERRUPT CONTROLLER

CD/DVD

INST. ROM

DATA ROM

TIMER

32BIT CPU

WATCH DOG TIMER

CPU I/F

READ MEMORY

EXT ADT (0-15), EXT ADR (16-19)

CPU I/F

BCU

DEBUG

EXT ADT (0-15), EXT ADR (16-19)

EXT ADT (0-7)

EXT ADT (8-15)

GENERAL I/O

INTERRUPT CONTROLLER

TIMER

WATCH DOG TIMER

INST CACHE

IC105 (LATCH)

IC104 (LATCH)

32BIT CPU

DATA CACHE

D TYPE LATCH

VIDEO I/F

EXT ADR (0-7)

EXT ADR (8-15)

NTSC/PAL ENCODER

D/A

EXT ADT (0-15)

EXT ADR (16-19)

EXT ADR (0-15)

158

164

161

160

VIDEO-Y

VIDEO-C

VIDEO-Cr

VIDEO-Cb

IC103 (FLASH ROM)

FLASH ROM

TO DVD VIDEO /AUDIO BLOCK DIAGRAM

1-10-11

1-10-12

H9411BLD

DVD Video / Audio Block Diagram

DVD VIDEO SIGNAL

DVD AUDIO SIGNALDATA(AUDIO) SIGNAL

FROM DIGITAL SIGNAL PROCESS BLOCK DIAGRAM

VIDEO-Y VIDEO-C VIDEO-Cb VIDEO-Cr

CN601

5 5VIDEO-Y 7 7VIDEO-C 3 3VIDEO-Cb 1 1VIDEO-Cr

CN1601

WF4

WF5

IC1402 (VIDEO DRIVER)

4dB

AMP

4dB

AMP

4dB

AMP

4dB AMP

LPF DRIVER

2dB AMP

DRIVER

WF6

JK1403

VIDEO-Y OUT

VIDEO-Cb OUT

VIDEO-Cr OUT

3 4

DVD-VIDEO TO VIDEO

JK1401 S-VIDEO OUT

BLOCK DIAGRAM <VCR SECTION>

FROM DIGITAL SIGNAL PROCESS BLOCK DIAGRAM

FROM DVD SYSTEM CONTROL /SERVO BLOCK DIAGRAM

SPDIF

PCM-BCK PCM-DATA0 PCM-LRCLK

ADAC-MD ADAC-MC ADAC-ML

PCM-SCLK A-MUTE

IC601 (AUDIO DAC)

1 2 3

13 14 15

SERIAL

PORT

SERIAL

CONTROL

4X/8X

OVERSAMPLING

DIGITAL FILTER

/FUNCTION

CONTROLLER

ENPHANCED MULTI-LEVEL

DELTA-SIGMA

MODULATOR

ZERO DETECT

SYSTEM CLOCK

DAC

LPF+AMP

L-CH

R-CH

12 11

WF8

Q1351

WF7

AMP

VREF

Q1204

+3.3V

IC1201

3 2

6 5

(AMP)

Q1202

Q1203

CN601 CN1601

1616SPDIF 11 11DVD-A(L) 1313DVD-A(R) 12 12

DVD-A(L)-MUTE

14 14

DVD-A(R)-MUTE

10 10

DVD-A-MUTE

WF9

Q1201

JK1202

DVD-A(L)

DVD-A(R)

DIGITAL AUDIO OUT

TO Hi-Fi AUDIO BLOCK DIAGRAM <VCR SECTION>

MAIN CBADVD MAIN CBA UNIT

+3.3V

1-10-13 1-10-14

H9411BLVD

+ 71 hidden pages

Duntech Audio DCD-2203 Service manual

Specifications and Main Features

Frequently Asked Questions

User Manual

MAIN SECTION

SPECIFICATIONS

LASER BEAM SAFETY PRECAUTIONS

IMPORTANT SAFETY PRECAUTIONS

STANDARD NOTES FOR SERVICING

PREPARATION FOR SERVICING

OPERATING CONTROLS AND FUNCTIONS

CABINET DISASSEMBLY INSTRUCTIONS

ELECTRICAL ADJUSTMENT INSTRUCTIONS

FIRMWARE RENEWAL MODE