Sylvania MWD200F, E6161UD Schematic

SERVICE MANUAL

DVD PLAYER

MWD200F

OPEN/CLOSE PLAY STOP STANDBY-ON

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 are effective methods of performing 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 CAUTIONS and NOTICES ARE NOT EXHAUSTIVE. Funai could not possibly know, evaluate and advice the service trade of all conceivable ways 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 procedure or tool which is not recommended by Funai must first use all precautions thoroughly so that neither his safety nor the safe operation of the equipment will be jeopardized by the service method selected.

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

Cabinet Disassembly Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5-1

How to Initialize the DVD Player . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6-1

Firmware Renewal Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7-1

Block Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8-1

Schematic Diagrams / CBA’s and Test Points. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9-1

Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-10-1

Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-11-1

System Control Timing Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-12-1

Lead Identifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-13-1

Exploded Views. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-14-1

Mechanical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-15-1

Electrical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-16-1

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

SPECIFICATIONS

Item Conditions Unit Nominal Limit

1. Video Output 75 Ω load Vpp 1.0 ± 0.1

2. Coaxial Digital Out 75 Ω load mVpp 500 ± 50

3. Audio (PCM) 3-1. Output Level 1 kHz, 0 dB Vrms 2.0 3-2. S/N dB 120 3-3. Freq. Response DVD fs = 48 kHz ± 0.5 dB Hz 20 ~ 22 k CD fs = 44.1 kHz ± 0.5 dB Hz 20 ~ 20 k 3-4. THD+N DVD 1 kHz, 0 dB % 0.0035 CD 1 kHz, 0 dB % 0.004

Notes:

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

2. Power supply: AC 120 V, 60 Hz

3. Load imp.: 100 kΩ

4. Ambient Temperature: +25 °C

1-1-1 E6161SP

LASER BEAM SAFETY PRECAUTIONS

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

Do not look directly at t he laser beam coming from the pickup or allow it to strike against your skin.

The laser beam is emitte d from the locati on shown in the figu re. When c hecking the l aser diode, be sur e to keep your eyes at least 30 cm away from the pickup lens when the diode is turned on. Do not look di rectly at the la ser beam.

CAUTION: Use of controls and adjustments, or doing proce dur es othe r tha n thos e sp ec ified herein, may result in hazardous radiation exposure.

rive Mecha Assembly

Laser Beam Radiation

Laser Pickup

Turntable

CAUTION

LASER RADIATION

WHEN OPEN. DO NOT

STARE INTO BEAM.

Location: Top of DVD mechanism.

1-2-1 E6NLSP

IMPORTANT SAFETY PRECAUTIONS

Product Safety Notice

Some electrical and mechanical parts have special safety-related characteristics which are often not evident from visual inspectio n, 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 a # on schematics and in parts lists. Use of a substitute replacement that does not have the same safety characteristics as the recommended replacement part might create shock, fire, and/or other hazards. 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 compliance, it is equally important to implement the following precauti ons 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 replacements. 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 especiall y:

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 contact heat

producing parts (heat sinks, oxide metal film resistors, 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 repaired locations. 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 crimp type connectors which conn ect the power cor d 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 c onnected. 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 the complete closure of the tool.

L. When connecting or disconnecting the internal

connectors, first, disconnect the AC plug from the AC outlet.

1-3-1 DVDN_ISP

Safety Check after Servici n g

Examine the area sur ro und ing the repai r ed loc ati on for damage o r dete rioration. Obser ve that sc rews, parts, and wires have been returne d to their or iginal positions. After wards, do the following tests and con firm the specified values to verify compliance with safety standards.

1. Clearance Distance

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

Table 1: Ratings for selected area

Chassis or Secondary Conductor

Primary Circuit Terminals

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

120 V ≥ 3.2 mm (0.126 inches)

Note: This table is unofficial and for reference onl y. Be

sure to confirm the precise values.

2. Leakage Current Test

Confirm the specified (or lower) leakage current between B (ear th ground, power cord p lug prongs) a nd 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):

Inser t l oad Z be twe en B (ea rth ground, power co rd pl ug prongs) and exposed accessible parts. Use an AC voltmeter to measure across the terminals of load Z. See Fig. 2 and the following table.

dd'

Fig. 1

Exposed Accessible Part

AC V oltmeter (High Impedance)

Earth Ground

Power Cord Plug Prongs

Table 2: Leakage current ratings for selected areas

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

120 V

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

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

i ≤ 0.5 mA Peak Exposed accessible parts

1-3-2 DVDN_ISP

Fig. 2

STANDARD NOTES FOR SERVICING

Circuit Board Indications

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

Top View

Out

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

Pin 1

3. The 1st pin of every male connector is indicated as shown.

Pin 1

Input

Bottom View

Pb (Lead) Free Solder

When soldering, be sure to use the Pb free solder.

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

Instructions for Connectors

1. When you connect or disconnect the FFC (Flexible Foil Connector) cable, be sure to f irst 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.

2. Remove the flat pack-IC with tweezers while applying the hot air.

3. Bottom of the flat pack-IC is fi xed with glue to the CBA; when removing entire flat pack-IC, first apply soldering iron to center of the flat pack-IC and heat up. Then remove (glue will be melted). (Fig. S-1-6)

4. Release the flat pack-IC from the CBA using tweezers. (Fig. S-1-6)

CAUTION:

1. The Flat Pack-IC shape may differ by models. Use an appropriate hot-air flat pack-IC desoldering machine, whose shape matches that of the Flat Pack-IC.

2. Do not supply hot air to th e 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 pro tect other par ts from damage. (Fig. S-1-2)

1-4-1 DVDN_SN

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

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 ap plied to all pins of the flat pack-IC, you can remove it easily. (Fig. S-1-3)

CBA

Masking Tape

Tweezers

Hot-air Flat Pack-IC Desoldering Machine

Flat Pack-IC

Fig. S-1-2

Flat Pack-IC

Desoldering Braid

Soldering Iron

Fig. S-1-3

2. Lift each lead of the flat pack-IC upward one by one, using a sharp pi n or wire to which solder will not adhere (iron wire) . Wh en h eati ng the pin s, use a fine tip soldering iron or a hot air desoldering machine. (Fig. S-1-4)

Sharp Pin

Fine Tip Soldering Iron

4. Release the flat pack-IC from the CBA using tweezers. (Fig. S-1-6)

Fig. S-1-4

1-4-2 DVDN_SN

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 solder melts so as to lift the IC leads from the CBA contact pads as shown in Fig. S-1-5.

4. Bottom of the flat pack-IC is fixed with glue to the CBA; when removing entire flat pack-IC, first apply soldering iron to center of the flat pack-IC and heat up. Then remove (glue will be melted). (Fig. S-1-6)

5. Release the flat pack-IC from the CBA using tweezers. (Fig. S-1-6)

Note: When using a soldering iron, care must be

taken to ensure that the flat pack-IC is not being held by glue. When the flat pack-IC is removed from the CBA, handle it gently because it may be damaged if force is applied.

Hot Air Blower

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 repl ac em ent fla t pa ck-IC mor e easily.

2. The “●” mar k on the flat pack-IC indicates pin 1. (See Fig. S-1-7.) B e sure this mar k matches the 1 on the PCB when posi tioning for inst allati on. Then presolder the four corners of the fla t 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

To Solid Mounting Point

CBA

Tweezers

Iron Wire

Soldering Iron

Fig. S-1-5

Fine Tip Soldering Iron

Flat Pack-IC

Presolder

Flat Pack-IC

CBA

Fig. S-1-8

Fig. S-1-6

1-4-3 DVDN_SN

Instructions for Handling Semiconductors

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

1. Ground for Human Body

Be sure to wear a grounding band (1 MΩ) that is properly grounded to remove any static elect ric ity that may be charged on the body.

2. Ground for Workbench

Be sure to place a conductive sheet or copper plate with proper grounding (1 MΩ) on the workbench or other surface, where the semi-conductors are to be placed. Because the static electricity charge on clothing will not escape through the body grounding band, be carefu l to avoid contacting semi-conducto rs with your clothing.

1MΩ

CBA

Grounding Band

1MΩ

CBA

Conductive Sheet or Copper Plate

1-4-4 DVDN_SN

CABINET DISASSEMBLY INSTRUCTIONS

1. Disassembly Flowchart

This flowchar t in dica tes the disas sembly step s to gai n access to item (s) t o be se r vic ed. W hen r eassem bling, follow the steps in reverse order. Bend, route, and dress the cables as they were originally.

[1] T op Case

[2] Front Assembly

[3] Reinforce Plate

[4] DVD Main CBA Unit

[5] DVD Mecha

[6] AV CBA

2. Disassembly Method

ID/

Loc.

No.

[1] Top Case D1 2(S-1) --[2]

[3]

[4]

[5] DVD Mecha

Part

Front Assembly

Reinforce Plate

DVD Main CBA Unit

Fig.

No.

D2 *3(L-1), *3(L-2) 1

D3 2(S-2) ---

(S-3A), (S-3B),

*CN201, *CN301, *CN401, *CN601

4(S-4) 3

Removal

Remove/*Unhook/

Unlock/Release/

Unplug/Desolder

Note

About tightening screws

When tightening screws, tighten them with the following torque.

Screws Torque

(S-1), (S-2), (S-3A), (S-4), (S-5), (S-6)

(S-3B) 0.38 ± 0.04 N·m

0.45 ± 0.05 N·m

Reference Notes

1. CAUTION 1: Locking Tabs (L-1) and (L-2) are fragile. Be careful not to break them.

1) Release three Locking Tabs (L-1). Then,

release three Locking Tabs (L-2 ).

2) Remove the Front Assembly.

2. CAUTION 2: Electrostatic breakdown of the laser diode in the optical system block may occur as a potential difference caus ed by electr os tati c c har ge accumulated on cloth, human body etc, during unpacking or repair work. To avoid damage of pickup follow next procedures.

1) Shor t the three short la nds of FPC cable with

solder before removing the FFC cable (CN201) from it. If you disconnect the FFC cable (CN201), the laser diode of pickup will be destroy ed. (Fig. D4)

2) Disconnect Con nectors (CN30 1), (CN401) and

(CN601). Remove two Screws (S-3A) and (S3B) and lift the DVD Main CBA Unit. (Fig. D4)

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

[6] AV CBA D6 (S-5), 4(S-6), *3(L-3) ---

↓

(1)

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,

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)

(5) Refer to “Reference Notes.”

↓

(2)

↓

(3)

↓

(4)

↓

(5)

(S-1)

[1] T op Case

Push

Fig. D1

1-5-1 E6161DC

CN201

CN301

(S-3B)

(S-3A)

CN601

(S-2)

(L-1)

(L-2)

[2] Front Assembly

(L-1)

(S-2)

[3] Reinforce Plate

Fig. D2

CN401

[4] DVD Main CBA Unit

Short the three short lands by soldering. (Either of two places.)

Fig. D3

Connector

View for A

Fig. D4

1-5-2 E6161DC

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