Sylvania E7EACUD Schematic

SERVICE MANUAL

DVD RECORDER

ZC320MW8

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 Recorder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6-1

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

Function Indicator Symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8-1

Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9-1

Schematic Diagrams / CBA’s and Test Points. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10-1

Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11-1

Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12-1

System Control Timing Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13-1

IC Pin Function Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14-1

Lead Identifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15-1

Exploded Views. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16-1

Mechanical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17-1

Electrical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18-1

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

1-1. Video Output 75 Ω load Vp-p 1.0 1-2. S-Video Output Y (Luminance) 75 Ω load Vp-p 1.0 C (Chrominance) 75 Ω load Vp-p 0.286 1-3. Component Output Y (Luminance) 75 Ω load Vp-p 0.549 Cb (U) 75 Ω load Vp-p 0.525 Cr (V) 75 Ω load Vp-p 0.525

2. AUDIO

2-1. Output Level Vrms 2.0 2-2. Frequency Response DVD-VIDEO LPCM fs = 96 kHz Hz 4 - 44 k

fs = 48 kHz Hz 4 - 22 k Audio CD fs = 44.1 kHz Hz 4 - 20 k 2-3. Signal/Noise Ratio DVD-VIDEO LPCM dB 120 CD dB 120 REC & Playback Input: 2 Vrms, Rec Speed: XP dB 90 2-4. Dynamic Range DVD-VIDEO LPCM dB 90 CD dB 90 REC & Playback Input: 2 Vrms, Rec Speed: XP dB 90 2-5. THD+N 1 kHz, 0 dB DVD-VIDEO LPCM % 0.01 CD % 0.01 REC & Playback Input: 2 Vrms, Rec Speed: XP % 0.01

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. Room ambient: 5 °C ~ 40 °C

1-1-1 E7EAASP

LASER BEAM SAFETY PRECAUTIONS

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

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

The laser beam is emitted from the location shown in the figure. When checking the laser diode, be sure to keep your eyes at least 30 cm away from the pickup lens when the diode is turned on. Do not look directly at the laser beam.

CAUTION: Use of controls and adjustments, or doing procedures other than those specified herein, may result in hazardous radiation exposure.

Drive Mechanism Assembly

Laser Beam Radiation

Laser Pickup

Turntable

Location: Inside Top of DVD mechanism.

1-2-1 RL4NLSP

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 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 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 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 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 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. When connecting or disconnecting the internal

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

1-3-1 DVDN_ISP

Safety Check after Servicing

Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts, 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 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

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

120 V ≥ 3.2 mm (0.126 inches)

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 terminals of load Z. See Fig. 2 and the following table.

d' d

Fig. 1

Exposed Accessible Part

AC Voltmeter (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 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.

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

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 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 the chip parts 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)

1-4-1 DVDN_SN

3. The flat pack-IC on the CBA is affixed with glue, so be careful not to break 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 applied 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 pin or wire to which solder will not adhere (iron wire). When heating the pins, 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 replacement flat pack-IC more easily.

2. The “●” mark on the flat pack-IC indicates pin 1. (See Fig. S-1-7.) Be sure this mark matches the 1 on the PCB when positioning for installation. Then presolder the four corners of the flat 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 electricity 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 careful to avoid contacting semi-conductors 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 flowchart indicates the disassembly steps to gain access to item(s) to be serviced. When reassembling, follow the steps in reverse order. Bend, route, and dress the cables as they were originally.

[1] Top Cover

[2] Front Assembly

[3] DVD Mechanism & DVD Main CBA Assembly

[4] Power Supply CBA

[5] Rear Panel

[6] AV CBA

[7] Front Bracket

2. Disassembly Method

ID/

Loc.

No.

Part

Fig.

No.

Removal

Remove/*Unhook/

Unlock/Release/

Unplug/Desolder

Note

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.”

Reference Notes

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

(S-1)

[1] Top Cover

(S-1)

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

Front

[2]

Assembly DVD

Mechanism

[3]

& DVD Main CBA Assembly

Power

[4]

Supply CBA

[5] Rear Panel D5 6(S-5), (S-6) ---

[6] AV CBA D5

Front

[7]

Bracket

↓

(1)

↓

(2)

D2 *5(L-1), *3(L-2) 1

4(S-3), *CN101, *CN701,

PCB Support / PCB Spacers

D4 5(S-4), *CN1070 ---

5(S-7), Front Earth Plate, Holder Main PCB

D5 (S-8) ---

↓

(3)

↓

(4)

---

(5)

(S-1)

Fig. D1

↓

1-5-1 E7EAADC

(S-4)

(L-1)

(L-2)

[2] Front Assembly

(S-3)

(L-1)

(S-3)

[3] DVD Mechanism & DVD Main CBA Assembly

Fig. D2

CN701

(S-7)

Holder Main PCB

[4] Power Supply CBA

CN1070

Fig. D4

(S-7)

[6] AV CBA

PCB Support / PCB Spacers

CN101

Fig. D3

Front Earth Plate

[7] Front Bracket

(S-5)

(S-6)

[5] Rear Panel

(S-8)

Fig. D5

1-5-2 E7EAADC

3. How to Eject Manually

Note: When rotating the gear, be careful not to damage the gear.

1. Remove the Top Cover.

2. Rotate the gear in the direction of the arrow manually as shown below until the tray descends.

3. Pull the tray out manually and remove a disc.

View for A

Rotate this gear in the direction of the arrow

1-5-3 E7EAADC

HOW TO INITIALIZE THE DVD RECORDER

To put the program back at the factory-default, initialize the DVD recorder as the following procedure.

1. Turn the DVD recorder on.

2. Confirm that no disc is loaded or that the disc tray is open. To put the DVD recorder into the Version display mode, press [CM SKIP], [1], [2], and [3] buttons on the remote control in the order. Fig. a appears on the screen.

*1: " *2: Firmware Version differs depending on the models, and this indication is one example.

Fig. a Version Display Mode Screen

" differs depending on the models.

*******

F/W VERSION DISP

MODEL NAME :

FE VERSION : BE VERSION : TT VERSION :

LD ADJUSTMENT : DISC ADJUSTMENT :

DEFAULT SETTING : ENTER EXIT : RETURN

*****

R40_005_082 RL4A10210S1E T40015RDU

OK OK

3. Press [OK] button, then the DVD recorder starts initializing. When the initializing is completed, the DVD recorder exits the Version display mode and turns off the power automatically.

* To move into the Normal mode from the

Version display mode, press [RETURN] button on the remote control instead of [OK] button.

* When [STANDBY-ON] button is pressed

before [OK] button is pressed, the DVD recorder exits the Version display mode, then the power turns off.

1-6-1 E7EAANT

FIRMWARE RENEWAL MODE

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

2. To put the DVD recorder into version up mode, press [CM SKIP], [6], [5], and [4] buttons on the remote control unit in the order. Then the tray will open automatically. Fig. a appears on the screen.

* Firmware Version differs depending on the models, and this indication is one example.

Firm Update Mode

Please insert a disc.

ver. RL4A*****S1E

Current F/W version is displayed.

Fig. a Version Up Mode Screen

3. Load the disc for version up. Fig. c appears on the screen. The file on the top is highlighted as the default. When there is only one file to exist, Step 4 will start automatically.

* Firmware Version differs depending on the models, and this indication is one example.

Firm Update Mode ver. RL4A*****S1E

Disc name is displayed.

VOL_200803250934

1 RL4A*****S1E 2 RL4A*****S1E 3 RL4A*****S1E 4 RL4A*****S1E

Files included in the disc are displayed.

1 / 1

4. Select the firmware version pressing arrow buttons, then press [OK]. Fig. d appears on the screen. The DVD recorder starts updating.

* Firmware Version differs depending on the models, and this indication is one example.

Firm Update Mode ver. RL4A10210S1E

(*1)

File Loading...

Fig. d Programming Mode Screen

The appearance shown in (*1) of Fig. d is described as follows.

No. Appearance State

1 File Loading... Sending files into the memory

Firmware

Updating...

Writing new version data

XX% Complete. Firmware

--Update Failure

Failed in updating

5. After updating is finished, the tray opens automatically. At this time, no button is available.

6. Pull out the AC code once, then insert it again.

Fig. c Update Disc Screen

1-7-1 E7EAAFW

FUNCTION INDICATOR SYMBOLS

Note: If an error occurs, a message with the error number appears on the screen.

Recording Error

Message Solution

Can not record on this disc.

This program is not allowed to be recorded.

This disc is protected and not recordable.

You cannot record on this disc as Power Calibration Area is full.

Insert the recordable disc, and ensure the disc status satisfies the recording requirements.

You cannot record copy prohibited programs.

Release the disc protect setting in the Disc Setting menu.

Error message

E35

Error

No.

1 An error occurs during data reading. -

4 An error occurs with OPC. -

5 During recovery in a record. -

7 An error occurs in a format. -

8 It cannot start an encode. -

13 It is a reply that “ATAPI is not readable.” -

16 An error occurs in Finalize Close. -

17 An error occurs in Rec Stop Close. -

18 An error occurs in PCA Full (DVD_R). -

19 Safety Stop occurs during editing. -

20 High Speed Disc. 2

21 The disc is not formatted. 5

22 Disc Error has occurred. 3

25 During the Macrovision picture input. 11

26 During the CGMS picture input. 12

29 Disc Protected Disc. 6

Error No.

Error Description Priority

There is no reply for 15 seconds in Test Unit Ready.

Cannot write the data after trying three times.

An error occurs even if recovery has been tried three times.

NV_PCK/RDI_PCK is not in encoded data.

Encode Pause condition continued for 10 minutes.

Encode Pause condition continued in normal REC condition for 10 minutes.

Difference in the address and can not get Stream ID of RDI/VIDEO.

Cannot write the data after recovering SMALL VMGI.

Cannot write the data after DVD-R Reverse Track.

The disc except DVD-R/RW or DVD+R/ RW (+VR Format).

1-8-1 E7EAAFIS

+ 37 hidden pages