Symphonic 6719DC, SSC719C, EWC19T2 Schematic

SERVICE MANUAL

Sec. 1: Main Section

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

19" COLOR TV/DVD/VCR

6719DC/

SSC719C

Sec. 2: Deck Mechanism Section

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

EWC19T2

Sec. 3: Exploded views and Parts List Section

I Exploded views I Parts List

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.

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

"DTS" and "DTS Digital Out" are trademarks of Digital Theater Systems Inc.

MAIN SECTION

19" COLOR TV/DVD/VCR

6719DC/SSC719C/EWC19T2

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

*ˆMode---------SP mode unless otherwise specified *Test input terminal

<Except Tuner>-------------Video input (1Vp-p) Audio input (-10dB) <Tuner>-----------------------Ant. input (80dBµV) Video: 87.5% Audio: 25kHz dev (1kHz Sin)

Description Condition Unit Nominal Limit

1. Over Scan — % 90 —

2. Linearity

3. High Voltage — kV 25 —

Horizontal % — 15

Vertical % — 10

Description Condition Unit Nominal Limit

Center m/m — 0.4

1. Misconvergence

2. Tint Control Range — deg ±30 —

3. Contrast Control Range — dB 6 2

4. Brightness (100% White Full Field) Contrast: Max ft-L 35 24

5. Color Temperature — K 9200 —

Corner m/m — 2.5

Side m/m — 1.5

<DVD>

Measurement at TP

Description Condition Unit Nominal Limit

1. Horizontal Resolution (TDV-540 TIT.2 CHP.16) — Line 330 320

2. Video S/N at CN3400 (TDV-540 TIT.2 CHP.6) — dB 60 55

3. S/N Chroma at CN3400 AM — dB 58 53

(TDV-540 TIT.2 CHP.17) PM — dB 58 53

4. Audio Distortion (LPCM 48 kHz, W/LPF) (PTD 1-NOR TIT.1 CHP.1)

5. Audio freq. response (LPCM 48kHz) (PTD 1-NOR TIT.1 CHP.5 -- 10)

6. Audio S/N (LPCM 48KHz,W/LPF,A-WTD) (PTD 1-NOR TIT.1 CHP.1 -- 2)

L

R

L, 20 Hz

R, 20 Hz

L, 20 kHz

R, 20 kHz

L

R

1-1-1 T500SP

%

dB 0 +4/-5

dB 100 85

0.03

0.07

<VCR>

Description Condition Unit Nominal Limit

1. Horizontal Resolution (R/P, SP) Line 230 200

2. Jitter (Low) (R/P, SP) µS0.1 0.2

3. S/N Chroma AM(SP) (R/P, SP) dB 38 33

PM(SP) (R/P, SP) dB 38 33

4. Wow & Flutter (JIS, UNWTD) (R/P, SP) % 0.25 0.5

<TUNER>

Description Condition Unit Nominal Limit

1. Video S/N (80dBµV, TV4ch) — dB 45 40

2. Audio S/N (W/LPF) — dB 45 40

All items are measured across 8Ω resistor at speaker output terminal.

Description Condition Unit Nominal Limit

1. Audio Output Power (R/P, SP) W 1.0 0.8

2. Audio S/N (W/LPF) (R/P, SP) dB 40 36

3. Audio distortion (W/LPF,-10dB 1kHz IN) (R/P, SP) % 3.0 5.0

4. Audio Freq. Response (-10dB 1kHz IN) 200 Hz (R/P, SP) dB -2.0 -2.0±5.0

8 kHz (R/P, SP) dB 0 0±6.0

<Hi-Fi AUDIO>

* All items are measured at TP1701 and TP1702.

Description Condition Unit Nominal Limit

1. Output Level (-10dB 1kHz IN) (R/P, SP) dB -8.0 -8±4

2. Audio Distortion (-10dB 1kHz IN) (R/P, SP) % 0.5 1.0

3. Freq. Response (-15dB 1kHz IN) 20 Hz (R/P, SP) dB 0 ±4

20 kHz (R/P, SP) dB 0 ±4

Note: Nominal specifications represent the design specifications. All units should be able to approximate these. Some will exceed and some may drop slightly below these specifications. Limit specifications represent the absolute worst condition that still might be considered acceptable. In no case should a unit fail to meet limit specifications.

1-1-2 T500SP

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 30cm 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 Mecha Assembly

Laser Beam Radiation

Laser Pickup

Turntable

LASER RADIATION

WHEN OPEN. DO NOT

STARE INTO BEAM.

CAUTION

Location: Inside Top of DVD mechanism.

1-2-1 DVD_LASER

IMPORTANT SAFETY PRECAUTIONS

Prior to shipment from the factory, our products are strictly inspected for 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.

Safety Precautions for TV Circuit

1. Before returning an instrument to the customer, always make a safety check of the entire instru-

ment, including, but not limited to, the following items:

a. Be sure that no built-in protective devices are de-

fective and have been defeated during servicing. (1) Protective shields are provided on this chassis to protect both the technician and the customer. Correctly replace all missing protective shields, including any removed 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 fishpapers, adjustment and compartment covers/shields, and isolation resistor/capacitor networks. Do not oper-

ate this instrument or permit it to be operated without all protective devices correctly installed and functioning. Servicers who defeat safety features or fail to perform safety checks may be liable for any resulting damage.

b. Be sure that there are no cabinet openings through

which an adult or child might be able to insert their fingers and contact a hazardous voltage. Such openings include, but are not limited to, (1) spacing between the picture tube and the cabinet mask, (2) excessively wide cabinet ventilation slots, and (3) an improperly fitted and/or incorrectly secured cabinet back cover.

c. Antenna Cold Check - With the instrument AC

plug removed from any AC source, connect an electrical jumper across the two AC plug prongs. Place the instrument AC switch in the on position. Connect one lead of an ohmmeter to the AC plug prongs tied together and touch the other ohmmeter lead in turn to each tuner antenna input exposed terminal screw and, if applicable, to the coaxial connector. If the measured resistance is less than 1.0 megohm or greater than 5.2 megohm, an abnormality exists that must be corrected before the instrument is returned to the customer. Repeat this test with the instrument AC switch in the off position.

d. Leakage Current Hot Check - With the instru-

ment completely reassembled, plug the AC line cord directly into a 120V AC outlet. (Do not use an isolation transformer during this test.) Use a leak-

age current tester or a metering system that complies with American National Standards Institute (ANSI) C101.1 Leakage Current for Appliances and Underwriters Laboratories (UL) 1410, (50.7). With the instrument 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 cabinet, screw heads, 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 0.5 milli-ampere. Reverse the instrument power cord plug in the outlet and repeat the test.

READING SHOULD NOT BE ABOVE 0.5 mA

LEAKAGE

DEVICE

BEING

TESTED

TEST ALL EXPOSED

METAL SURFACES

ALSO TEST WITH PLUG REVERSED

USING AC ADAPTER PLUG AS REQUIRED

CURRENT

TESTER

EARTH GROUND

ANY MEASUREMENTS NOT WITHIN THE LIMITS SPECIFIED HEREIN INDICATE A POTENTIAL SHOCK HAZARD THAT MUST BE ELIMINATED BEFORE RETURNING THE INSTRUMENT TO THE CUSTOMER OR BEFORE CONNECTING THE ANTENNA OR ACCESSORIES.

e. X-Radiation and High Voltage Limits - Because

the picture tube is the primary potential source of X-radiation in solid-state TV receivers, it is specially constructed to prohibit X-radiation emissions. For continued X-radiation protection, the replacement picture tube must be the same type as the original. Also, because the picture tube shields and mounting hardware perform an X-radiation protection function, they must be correctly in place. High voltage must be measured each time servic-

1-3-1 TD204IMP

ing is performed that involves B+, horizontal deflection or high voltage. Correct operation of the X-radiation protection circuits also must be reconfirmed each time they are serviced. (X-radiation protection circuits also may be called "horizontal disable" or "hold down.") Read and apply the high voltage limits and, if the chassis is so equipped, the X-radiation protection circuit specifications given on instrument labels and in the Product Safety & X-Radiation Warning note on the service data chassis schematic. High voltage is maintained within specified limits by close tolerance safety-related components/adjustments in the high-voltage circuit. If high voltage exceeds specified limits, check each component specified on the chassis schematic and take corrective action.

2. Read and comply with all caution and safety-related notes on or inside the receiver cabinet, on the receiver chassis, or on the picture tube.

3. Design Alteration Warning - Do not alter or add to the mechanical or electrical design of this TV receiver. Design alterations and additions, including, but not limited to circuit modifications and the addition of items such as auxiliary audio and/or video output connections, might alter the safety characteristics of this receiver and create a hazard to the user. Any design alterations or additions will void the manufacturer's warranty and may make you, the servicer, responsible for personal injury or property damage resulting therefrom.

4. Picture Tube Implosion Protection Warning -

The picture tube in this receiver employs integral implosion protection. For continued implosion protection, replace the picture tube only with one of the same type number. Do not remove, install, or otherwise handle the picture tube in any manner without first putting on shatterproof goggles equipped with side shields. People not so equipped must be kept safely away while picture tubes are handled. Keep the picture tube away from your body. Do not handle the picture tube by its neck. Some "in-line" picture tubes are equipped with a permanently attached deflection yoke; because of potential hazard, do not try to remove such "permanently attached" yokes from the picture tube.

5. Hot Chassis Warning -

a. Some TV receiver chassis are electrically connect-

ed directly to one conductor of the AC power cord and may be safety-serviced without an isolation transformer only if the AC power plug is inserted so that the chassis is connected to the ground side of the AC power source. To confirm that the AC power plug is inserted correctly, with an AC voltmeter, measure between the chassis and a known

earth ground. If a voltage reading in excess of 1.0V is obtained, remove and reinsert the AC power plug in the opposite polarity and again measure the voltage potential between the chassis and a known earth ground.

b. Some TV receiver chassis normally have 85V

AC(RMS) between chassis and earth ground regardless of the AC plug polarity. This chassis can be safety-serviced only with an isolation transformer inserted in the power line between the receiver and the AC power source, for both personnel and test equipment protection.

c. Some TV receiver chassis have a secondary

ground system in addition to the main chassis ground. This secondary ground system is not isolated from the AC power line. The two ground systems are electrically separated by insulation material that must not be defeated or altered.

6. Observe original lead dress. Take extra care to assure correct lead dress in the following areas: a. near sharp edges, b. near thermally hot parts-be sure that leads and components do not touch thermally hot parts, c. the AC supply, d. high voltage, and e. antenna wiring. Always inspect in all areas for pinched, out of place, or frayed wiring. Check AC power cord for damage.

7. Components, parts, and/or wiring that appear to have overheated or are otherwise damaged should be replaced with components, parts, 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.

8. 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 strictly 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.

1-3-2 TD204IMP

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 produc-

ing parts (heatsinks, oxide metal film resistors, fusible resistors, etc.)

G. Check that replaced wires do not contact sharp

edged 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

When replacing the power transformer in sets where the connections between the power cord and power transformer primary lead wires are performed using crimp type connectors, in order to prevent shock hazards, perform carefully and precisely the following steps.

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 the crimping tool to crimp the metal sleeve at the center position. Be sure to crimp fully to the complete closure of the tool.

L. When connecting or disconnecting the TV/DVD

connectors, first, disconnect the AC plug from AC supply socket.

1-3-3 TD204IMP

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 original positions. Afterwards, perform the following tests and confirm the specified values in order 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

dd’

AC Line Voltage Region

110 to 130 V

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

USA or

CANADA

Clearance

Distance (d) (d')

≥ 3.2 mm

(0.126 inches)

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.).

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

Table 2 : Leakage current ratings for selected areas

Exposed Accessible Part

Z

One side of

B

Power Cord Plug Prongs

Fig. 1

AC Voltmeter (High Impedance)

Fig. 2

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

110 to 130 V

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

USA or

CANADA

0.15µF CAP. & 1.5kΩ

RES. connected in

parallel

1-3-4 TD204IMP

i≤0.5mA rms

Exposed accessible

parts

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 5th pin is indicated as shown:

Pin 1

3. The 1st pin of every pin connector are indicated as shown:

Pin 1

Input

In

Bottom View

5

10

How to Read the Values of the Rectangular Type Chip Components

Example: (a) Resistor

473

= 473 = 47 [kΩ]

(b) Capacitor

= Not Shown

Caution:

Once chip parts (Resistors, Capacitors, Transistors, etc.) are removed, they must not be reused. Always use a new part.

Replacement Procedures for

(Top View)

Instructions for Connectors

1. When you connect or disconnect FFC cable (connector), be sure to disconnect the AC cord.

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

FFC Cable

Connector

CBA

* Be careful to avoid a short circuit.

[ CBA= Circuit Board Assembly ]

Leadless (Chip) Components

The Following Procedures are Recommended for the Replacement of the Leadless Components Used in this Unit.

1. Preparation for replacement

a. Soldering Iron

Use a pencil-type soldering iron (less than 30 watts).

b. Solder

Eutectic solder (Tin 63%, Lead 37%) is recommended.

c. Soldering time

Do not apply heat for more than 4 seconds.

d. Preheating

Leadless capacitor must be preheated before installation. (130°C~150°C, for about two minutes.)

Notes:

a. Leadless components must not be reused after

removal.

b. Excessive mechanical stress and rubbing for the

component electrode must be avoided.

2. Removing the leadless component

Grasp the leadless component body with tweezers and alternately apply heat to both electrodes. When the solder on both electrodes has melted, remove leadless component with a twisting motion.

1-4-1 SFTY_5

Notes:

a. Do not attempt to lift the component off the board

until the component is completely disconnected from the board by the twisting action.

b. Take care not to break the copper foil on the

printed board

3. Installing the leadless component

a. Presolder the contact points of the circuit board.

b. Press the part downward with tweezers and solder

both electrodes as shown below.

Note:

Do not glue the replacement leadless component to the circuit board.

Tweezers

Chip

Soldering Iron

Tweezers

Soldering Iron

Solder

Soldering Iron

2. 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 solder lands under the IC when removing it.

1. Removal

With Hot - Air Flat Pack - IC Desoldering Machine:

a. Prepare the Hot - Air Flat Pack - IC Desoldering

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

b. Remove the Flat Pack- IC with tweezers while

applying the hot air.

With Soldering Iron:

a. 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)

b. 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)

With Iron Wire:

a. 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)

b. Affix the wire to a workbench or solid mounting

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

c. Pull up on the wire as the solder melts so as to lift

the IC leads from the CBA contact pads, while heating the pins using a fine tip soldering iron or hot air blower.

Note:

When using a soldering iron, care must be taken to ensure that the Flat Pack - IC is not being held by glue, or when it is removed from the CBA, it may be damaged if force is used.

Presolder

How to Remove / Install Flat Pack IC

Caution:

1. Do not apply the hot air to the chip parts around the Flat Pack-IC for over 6 seconds as damage may occur to the chip parts. Put Masking Tape around the Flat Pack-IC to protect other parts from damage. (Fig. S-1-2)

2. Installation

a. 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.

b. The "I" mark on the Flat Pack - IC indicates pin 1

(See Fig. S-1-6). Make sure this mark matches the 1 on the CBA when positioning for installation. Then pre - solder the four corners of the Flat PackIC (See Fig. S-1-7).

c. Solder all pins of the Flat Pack - IC. Make sure that

none of the pins have solder bridges.

1-4-2 SFTY_5

Fig. S-1-1

Hot Air Blower

or

Iron Wire

Soldering Iron

To Solid Mounting Point

CBA

Masking Tape

Tweezers

Flat Pack-IC

Fig. S-1-2

Desoldering Braid

Hot-air Flat Pack-IC Desoldering Machine

Flat Pack-IC

Fig. S-1-5

Example :

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

Fig. S-1-6

CBA

Fine Tip Soldering Iron

Soldering Iron

Fig. S-1-3

Flat Pack-IC

Tweezers

Fig. S-1-7

Sharp Pin

Fig. S-1-4

1-4-3 SFTY_5

Instructions for Handling Semiconductors

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

Ground for Human Body

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

Ground for Work Bench

Be sure to place a conductive sheet or copper plate with proper grounding (1MΩ) on the work bench or other surface, where the semiconductors are to be placed. Because the static electricity charge on the clothing will not escape through the body grounding band, be careful to avoid contacting semiconductors to clothing.

1MΩ

CBA

Grounding Band

1MΩ

CBA

Conductive Sheet or Copper Plate

1-4-4 SFTY_5

PREPARATION FOR SERVICING

How to Enter the Service Mode

Caution: 1

1. Optical sensors system are used for Tape Start and End Sensor on this equipment. Read this page carefully and prepare as described on this page before starting to service; otherwise, the unit may operate unexpectedly.

Preparing: 1

1. Cover Q202 (START SENSOR) and Q201 (END SENSOR) with Insulation Tape or enter the service mode to activate Sensor Inhibition automatically.

Note: Avoid playing, rewinding or fast forwarding the tape to its beginning or end, because both Tape End Sensors are not active.

How to Enter the Service Mode

1. Turn power on.

2. Use service remote control unit and press WAKEUP/SLEEP key. (See page 1-8-1)

3. When entering the service mode, one of the number (1, 2 or 4) will display at corners of the screen.

4. During the service mode, electrical adjustment mode can be selected by remote control key. (Service remote control unit).

Details are as follows.

Key Adjustment Mode

Picture adjustment mode: Press the MENU button to change from BRT (Bright), *CNT (Contrast), *CLR

MENU

0

1 No need to use.

2

3

4

5

(Color), *TNT(Tint) and *V-T. Press CH UP/DOWN key to display Initial Value. *Marked items are not necessary to adjust normally.

C-Trap and Y DL Time adjustment mode: See adjustment instructions page 1-8-3.

AGC/H adjustment mode: See adjustment instructions page 1-8-2.

Auto AFT adjustment mode: See adjustment instructions page 1-8-2.

Auto record mode: Perform recording (15 Sec.)-->Stop-->Rewind (Zero return) automatically.

Head switching point adjustment mode: See adjustment instructions page 1-8-5.

Key Adjustment Mode

6 No need to use.

Purity check mode: Shows Red,

7

8

9

Caution: 2

1. The deck mechanism assembly is mounted on the Main CBA directly, and SW1211 (REC-SAFETY SW) is mounted on the Main CBA. When deck mechanism assembly is removed from the Main CBA due to servicing, this switch can not be operated automatically.

Green, Blue or White cyclically on the screen each time the “7” key is pressed.

H. Shift adjustment mode: See adjustment instructions page 1-8-4.

V.size/V. shift adjustment: See adjustment instructions page 1-8-3.

Preparing: 2

1. To eject the tape, press the STOP/EJECT button on the unit (or Remote Control).

2. When you want to record during the Service mode, press the Rec button while depressing SW1211 (REC-SAFETY SW) on the Main CBA.

Q201 (END SENSOR)

SW1211

(REC-SAFETY SW)

Q202 (START SENSOR)

MAIN CBA

1-5-1 TD500PFS

OPERATING CONTROLS AND FUNCTIONS

- TV/DVD/VCR FRONT PANEL -

POWER

VOLUME

DVD buttons TV/VCR buttons

PLAY

SKIP

SEARCH

OPEN/CLOSE

STOP

12 4 5 6 107 1514983 3 411 12 13 212019181716

- REMOTE CONTROL -

POWER PICTURE SELECTSLEEP

1

22

23

24 25

26

(DVD) 3

(TV/VCR) 14

4

13

27 28

29 30

31 32

33

1.

POWER button

123

456

789

PAUSE

SPEED C.RESET

RECORD

DISPLAY

CLEAR

MODE

+100

0 +10

PLAY

STOP

ENTER

REPEATSEARCH MODE

RETURNTITLESETUP

CH.

VOL.

MUTEZOOM

DISC

MENU

A

ANGLESUBTITLEAUDIO

-

B

45 44

11

2

43 42

3 (DVD)

15 (TV/VCR)

5 41

40 39

38 37

36 35

34

Press to turn the power on and off.

2. VOLUME X/Y buttons

Press to control the volume level for the DVD and TV.

3. SKIP buttons (for DVD)

Skip chapters or tracks to a desired point.

PLAY button

4.

Starts playback of the disc or tape contents.

5.

STOP button

Stops operation of the disc.

OPEN/CLOSE button

6.

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

7.

Disc loading tray

8. DVD indicator

Lights on during DVD mode.

SELECT

CHANNEL

TV/VCR

DVD

9. SELECT button

Press to change to TV/VCR mode or DVD mode. NOTE: For about 4 seconds just after the DVD mode has switched to the TV mode, the button does not work to switch back to the DVD mode.

10.

TV/VCR indicator

Lights on during TV/VCR mode.

CHANNEL K/L buttons

11.

Press to select memorized channel.

12.

Recording indicator

Flashes during recording. Lights up in the Standby mode for Timer Recording.

REC/OTR (RECORD) button

13.

Press for manual recording. Activates One Touch Recording. (OTR is only during TV/VCR mode.)

REW button (for TV/VCR)

14.

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

15.

FWD button (for TV/VCR)

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

STOP/EJECT button

16.

Press to stop the tape motion. Press in the Stop mode to remove tape from the unit.

Remote sensor window

17.

18. HEADPHONE jack

To connect headphone (not supplied) for personal listening.

VIDEO input jack

19.

Connect to the video output jack of a video camera or VCR.

20.

AUDIO L/R input jacks

Connect to the audio output jacks of a video camera or VCR.

Cassette compartment

21.

22. PICTURE button

Press to adjust the picture.

REC/OTR

REW

HEADPHONE

RL

AUDIO

VIDEO

STOP/EJECT

F.F W D

PLAY

1-6-1 TD500IB

- TV/DVD/VCR REAR PANEL -

ANT.

23. Number buttons

TV Mode:

Press two digits to directly access the desired channel. Remember to press a "0" before a single digit channel.

+100 buttonÐ

Press to select cable channels which are equal or greater than number 100.

DVD Mode:

Press to enter the desired number.

+10 buttonÐ

Press to enter the desired numbers which are equal or greater than number 10.

PAUSE button

24.

Pauses the current disc or tape operation.

25.

SPEED button

Press to choose the desired recording speed: SP/SLP.

C.RESET button

26.

Press to reset counter to 0:00:00. Press to cancel a setting of timer program.

27.

DISPLAY button TV/VCR Mode:

Display the counter or the current channel number and current time on the TV screen.

DVD Mode:

Displays the current status on the TV screen for checking purposes.

SETUP button

28.

Press to enter or exit the TV menu or DVD setup mode.

29.

TITLE button

Displays the title menu.

CLEAR button

30.

Resets a setting.

MODE button

31.

Activates program playback or random playback mode.

32. SEARCH MODE button

Press to locate a desired point.

AUDIO button

33.

Press to select a desired audio language or sound mode.

SUBTITLE button

34.

Press to select a desired subtitle language.

1

AUDIO OUT

COAXIAL

L

R

4746 48 49

35.

REPEAT button

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

ANGLE button (DVD mode)

36.

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

37. A-B REPEAT button

Repeats playback of a selected section.

RETURN button

38.

Returns to the previous operation.

39.

ENTER button

Press to accept a setting.

40.

Arrow buttons TV/VCR Mode:

Press to select a setting mode from the menu on the TV screen. Press to select or adjust from a particular menu.

DVD Mode:

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

41.

DISC MENU button

Displays the menus in the DVD.

ZOOM Button

42.

Enlarges part of a DVD-reproduced image.

MUTE button

43.

Mutes the sound. Press it again to resume sound.

44.

SLEEP button

Sets the Sleep Timer.

SELECT button

45.

Press to switch TV/VCR and DVD mode. You can see the mode (TV/VCR or DVD) on the front panel indicator.

ANT. in jack

46.

Connect to an antenna, cable system, or satellite system.

Power cord

47.

Connect to a standard AC outlet (120V/60Hz).

NOTE: Remove the power cord from the hook to

avoid breaking a wire before you connect to a standard AC outlet.

48.

COAXIAL digital audio out jack

Connect to the digital input of an external amplifier or decoder.

AUDIO L/R output jack

49.

Connect to the analog audio input of an external amplifier or decoder.

1-6-2 TD500IB

CABINET DISASSEMBLY INSTRUCTIONS

1. Disassembly Flowchart

This flowchart indicates the disassembly steps for the cabinet parts, and the CBA in order 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.

Caution !!

When removing the CRT, be sure to discharge the Anode Lead of the CRT with the CRT Ground Wire before removing the Anode Cap.

[1] Rear Cabinet

[2] H.V. CBA

[4] CRT

[5] Shield Box

[6] DVD Mechanism

MAIN CBA UNIT

[9] Bottom Plate

[3] Tray Chassis Unit

[11] Deck Assembly

[12] Main CBA

[8] Filter CBA[7] DVD

REMOVAL

ID/

LOC.

No.

PART

REMOVE/ *UNHOOK/UNLOCK/

Fig.

No.

RELEASE/UNPLUG/ DESOLDER

[7]

DVD Main CBA Unit

3(S-7), CN101,

5

CN401

[8] Filter CBA 3, 6 CN401, CN402 -

Bottom

[9]

[10]

[11]

Plate

Power Supply/AV CBA

Deck Assembly

3 6(S-8) -

3(S-9), CN2802,

3, 6

CN2803, CN2804

7(S-10), 2(S-11), CL1201, CL1401,

3, 6

CL1402, CL1403

[12] Main CBA 3 3(S-12) -

↓

(1)

↓

(2)

↓

(3)

↓

(4)

Note

2-1 2-2 2-3

3

-

4

↓

(5)

[10] Power Supply/AV CBA

2. Disassembly Method

REMOVAL

ID/

LOC.

PART

No.

Rear

[1]

Cabinet

H.V. CBA

[2]

(With Holder)

Tray

[3]

Chassis Unit

[4] CRT 4 4(S-4) -

[5] Shield Box 3 5(S-5) -

REMOVE/ *UNHOOK/UNLOCK/

Fig. No.

RELEASE/UNPLUG/ DESOLDER

1, 2 6(S-1), 1(S-2), 1(S-3) -

Anode Cap, CN501,

3, 4,

CRT CBA, CN571,

6

CN1301, CN1302, CN2602

CN1802, CN2801,

3, 6

CN2601

Note

1

-

(1): Order of steps in Procedure. When reassembling,

follow the steps in reverse order.These numbers are also used as the identification (location) No. of

parts in Figures. (2): Parts to be removed or installed. (3): Fig. No. showing Procedure of Part Location. (4): Identification of part to be removed, unhooked,

unlocked, released, unplugged, unclamped, or

desoldered.

S=Screw, P=Spring, L=Locking Tab, CN=Connec-

tor, *=Unhook, Unlock, Release, Unplug, or

Desolder

2(S-2) = two Screw (S-2) (5): Refer to the following "Reference Notes in the

Table."

[6]

DVD Mechanism

CN501, CN701,

3, 6

4(S-6)

-

1-7-1 TD500DC

Reference Notes in the Table

Caution !

When removing the CRT, be sure to discharge the Anode Lead of the CRT with the CRT Ground Wire before removing the Anode Cap.

Reference Notes in the Table CAUTION 1: Discharge the Anode Lead of the CRT with the CRT Ground Wire before removing the Anode Cap.

1. Disconnect the following: Anode Cap, CN501, CRT CBA, CN571, CN2602, CN1301 and CN1302. Then remove H.V. CBA (with Holder).

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. Slide the pickup unit as shown in Fig. 5.

2-2. Short the three short lands of FPC cable with sol-

der before removing the FFC cable (CN101) from it. If you disconnect the FFC cable (CN101), the laser diode of pickup will be destroyed. (Fig. 5)

2-3. Disconnect Connector (CN401). Remove three

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

CAUTION 3: When reassembling, confirm the FFC cable (CN101) is connected completely. Then remove the solder from the three short lands of FPC cable. (Fig. 5)

4. Remove Screws 7(S-10) and 2(S-11). Then, desolder connectors (CL1201, C1401, CL1402, CL1403) and lift up the Deck Assembly.

1-7-2 TD500DC

S-2

S-1

[1] REAR CABINET

S-1 S-1

ANT.

1

S-3

S-1

Fig. 1

S-1

S-3

S-2

S-1

[1] REAR CABINET

Fig. 2

1-7-3 TD500DC

S-5

[8] Filter CBA

S-8

[9] Bottom Plate

S-8

S-9

[5] Shield Box

S-6

[6] DVD Mechanism

S-8

S-9

S-10

[3] Tray Chassis

S-10

[11] Deck Assembly

S-10

S-12

H.V. CBA

[10] Power Supply/ AV CBA

S-11

[2] H.V. CBA

[12] Main CBA

S-11

(wih Holder)

Fig. 3

1-7-4 TD500DC

S-4

Anode Cap

S-4

CRT CBA

S-4

CN101

S-7

CN401

S-7

[7] DVD Main CBA Unit

A

[4] CRT

S-4

Fig. 4

Short the three short lands by soldering

View for A

OR

Short the three short lands by soldering

DVD Mechanism

Slide

B

C

Pickup Unit

View for B

View for C

Fig. 5

1-7-5 TD500DC

ANODE

CRT

DVD MAIN CBA

FACTORY USE ONLY

CL501

CRT CBA

CN501

SCREEN

GND

TO

SPEAKER

CN2801

POWER SUPPLY/ AV CBA

CN501

CN403

CN401

CN2401 CN2402

CN2802

CL1403

CN701

CN404

CN1805

CN402

CN2803

CN2601

CN2804

CN1804

FOCUS

CL504A

FILTER CBA

CN2602

CN1803

H.V. CBA

MAIN CBA

CN1802

TO SPEAKER

CL503A

CL501A

CL502A

CN571

CL1201

CL1401

CL1402

CN1302

INT MON FACTORY USE ONLY

CN1301

CN1303

TUNER

FE HEAD

CYLINDER ASSEMBLY

AC HEAD ASSEMBLY

DECK ASSEMBLY

CAPSTAN MOTOR

Fig. 6

1-7-6 TD500DC

ELECTRICAL ADJUSTMENT INSTRUCTIONS

General Note:

"CBA" is abbreviation for "Circuit Board Assembly."

NOTE:

Electrical adjustments are required after replacing circuit components and certain mechanical parts. It is important to perform these adjustments only after all repairs and replacements have been completed. Also, do not attempt these adjustments unless the proper equipment is available.

Test Equipment Required

1. NTSC Pattern Generator (Color Bar W/White Window, Red Color, Dot Pattern, Gray Scale, Monoscope, Multi-Burst)

2. AC Milli Voltmeter (RMS)

3. Alignment Tape (FL8A, FL8N), Blank Tape

4. DC Voltmeter

5. Oscilloscope: Dual-trace with 10:1 probe,

V-Range: 0.001~50V/Div, F-Range: DC~AC-60MHz

6. Frequency Counter

7. Plastic Tip Driver

How to Set up the Service mode:

Service Mode:

1. Use the service remote control unit.

2. Turn the power on. (Use main power on the TV unit.)

3. To enter the TV mode, press CH UP or CH DOWN button on the TV unit.

4. Press "DISC MENU" button on the service remote control unit. (Version of micro computer will display on the CRT. (Ex: 057-001)

X-Ray Protection Test

X-Ray protection test should be done when replacing any parts of this chassis.

1. Short test points J551 and J552 (on H.V. CBA).

2. Confirm that the main power turns off.

3. If the main power does not turn off, then replace the following parts (D591, Q591, R592, R593, R594 and IC1201).

4. Perform steps 1 to 3 again.

1. DC 114V (+B) Adjustment

Purpose: To obtain correct operation.

Symptom of Misadjustment: The picture is dark and

unit does not operate correctly.

How to make service remote control unit:

1. Prepare normal remote control unit. (Part No. NE200UD) Remove 4 screws from the back lid. (Fig. 1-1)

2. Add J1 (Jumper Wire) to the remote control CBA. (Fig. 1-2)

SCREW

Remote control unit (Bottom)

J 1

Fig. 1-1

Test point Adj. Point Mode Input

J533

(+B)

HEAT SINK

(on H.V.

CBA)

(GND)

Tape M. EQ. Spec.

--- DC Voltmeter +114±0.5V DC

Note: J533(+B), HEAT SINK --- H.V. CBA ,VR2601 --- Power Supply/AV CBA

1. Connect the unit to AC Power Outlet.

2. Connect DC Volt Meter to J533(+B) and HEAT SINK (on H.V. CBA)(GND).

3. Adjust VR2601 so that the voltage of J533(+B) becomes +114±0.5V DC.

VR2601 --- -----

Remote control CBA

Fig. 1-2

1-8-1 TD500EA

2. Auto AFT (VCO) Adjustment

4-1. H Adjustment

Purpose: To operate AFT correctly.

Symptom of Misadjustment: AFT does not work cor-

rectly and/or synchronization is faulty.

Test point Adj. Point Mode Input

--- --- Video -----

Tape M. EQ. Spec.

--- --- ---

1. Set the unit to the Video mode with no signal input.

2. Enter the Service mode. (See page 1-8-1.) Then press number "3" button on the remote control unit.

3. If the screen color changes to "Green" then this adjustment is finished.

4. If the screen color changes to "Red" then this adjustment is failed. Repeat steps 1 and 2 or check relative circuit or parts (IC).

3. TV AGC Adjustment

Purpose: Set AGC (Auto Gain Control) Level.

Symptom of Misadjustment: AGC does not synchro-

nize correctly when RF input level is too weak and picture distortion may occur if it is too strong.

Test point Adj. Point Mode Input

Purpose: To get correct horizontal position and size of screen image.

Symptom of Misadjustment: Horizontal position and size of screen image may not be properly displayed.

Test point Adj. Point Mode Input

R583

Tape M. EQ. Spec.

--- Frequency Counter 15.734kHz±300Hz

Note: R583 --- H.V. CBA

1. Connect Frequency Counter to R583.

2. Operate the unit for at least 20 mintes.

3. Enter the Service mode. (See page 1-8-1.) Press "2" button on the remote control unit and select HADJ Mode. (Press "2" button then display will change H-ADJ and AGC.)

4. Press CH o / p buttons on the remote control unit so that the display will change "0" to "7."

5. At this moment, choose display "0" to "7" when the Frequency counter display is closest to

15.734kHz±300Hz.

6. Turn the power off and on again.

CH o / p

buttons

Video ---

TP1001

Tape M. EQ. Spec.

---

Note: TP1001--- Main CBA

1. Enter the Service mode. (See page 1-8-1.) Then press number 2 button on the remote control unit.

2. Receive the Color Bar signal for channel 4 (67.25MHz). (RF Input Level: 60dBµV)

3. Press CH. o / p buttons so that the voltage of TP1001 (AGC) becomes +2.8V±0.3V DC.

4. Turn the power off and on again.

CH. o / p

buttons

Pattern Generator

DC Voltmeter

---

+2.8±0.3V DC

Color Bar

67.25MHz

60dBµV

1-8-2 TD500EA

4-2. C-Trap Adjustment

5. V. Size Adjustment

Purpose: To get minimum leakage of the color signal

carrier.

Symptom of Misadjustment: If C-Trap Adjustment is incorrect, stripes will appear on the screen.

Test point Adj. Point Mode Input

D1304

(Cathode)

(B-OUT)

Tape M. EQ. Spec.

---

minimum

CH o / p

buttons

Oscilloscope

Pattern Generator

Figure

--- Color Bar

---

Fig. 2

Purpose: To obtain correct vertical height of screen

image.

Symptom of Misadjustment: If V. Size is incorrect, vertical height of image on the screen may not be properly displayed.

Test point Adj. Point Mode Input

---

Tape M. EQ. Spec.

--- Pattern Generator 90±5%

1. Enter the Service mode. (See page 1-8-1.) Press "9" button on the remote control unit and select V-S Mode. (Press "9" button then display will change to V-P and V-S).

2. Input monoscope pattern.

3. Press CH o / p buttons on the remote control unit so that the monoscope pattern is 90±5% of display size and the circle is round.

CH o / p

buttons

--- Monoscope

6. V. Shift Adjustment

Note: D1304 (Cathode) (B-Out)--- Main CBA

1. Connect Oscilloscope to D1304 (Cathode).

2. Input a color bar signal from RF input. Enter the Service mode. (See page 1-8-1.)

3. Press "0" button on the remote control unit and select C-TRAP Mode.

4. Press CH o / p buttons on the remote control unit so that the carrier leakage B-Out (3.58MHz) value becomes minimum on the oscilloscope.

5. Turn the power off and on again.

Purpose: To obtain correct vertical position of screen image.

Symptom of Misadjustment: If V. position is incorrect, vertical position of image on the screen may not be properly displayed.

Test point Adj. Point Mode Input

---

Tape M. EQ. Spec.

--- Pattern Generator ---

1. Enter the Service mode. (See page 1-8-1.) Press "9" button on the remote control unit and select V-P Mode. (Press "9" button then display will change to V-P and V-S).

2. Input monoscope pattern.

3. Press CH o / p buttons on the remote control unit so that the top and bottom of the monoscope pattern are equal to each other.

CH o / p

buttons

--- Monoscope

1-8-3 TD500EA

7. H. Shift Adjustment

Purpose: To obtain correct horizontal position and

size of screen image.

Symptom of Misadjustment: Horizontal position and size of screen image may not be properly displayed.

Test point Adj. Point Mode Input

---

Tape M. EQ. Spec.

--- Pattern Generator ---

1. Enter the Service mode. (See page 1-8-1.) Press "8" button on the remote control unit and select H-P Mode.

2. Input monoscope pattern.

3. Press CH o / p buttons on the remote control unit so that the left and right side of the monoscope pattern are equal to each other.

4. Turn the power off and on again.

CH o / p

buttons

--- Monoscope

8. Cut-off Adjustment

Purpose: To adjust the beam current of R, G, B, and

screen voltage.

Symptom of Misadjustment: White color may be reddish, greenish or bluish.

Test point Adj. Point Mode Input

Black

--- Screen-Control Ext.

Raster /

White

Raster

Notes: Screen Control FBT --- H.V. CBA FBT= Fly Back Transformer Use the Remote Control Unit

1. Degauss the CRT and allow CRT to operate for 20 minutes before starting the alignment.

2. Set the screen control to minimum position. Input the Black raster signal from RF input.

3. Enter the Service Mode. (See page 1-8-1.) Dimmed horizontal line appears on the CRT.

4. Press the "VOL p" button. (Press "VOL p" then display will change CUT OFF/ DRIVE, VCO adjustment, 7Fh adjustment).

5. Choose CUT OFF/DRIVE Mode then press "1" button. This adjustment mode is CUT OFF (R).

6. Press the "CH o / p" button until the horizontal line becomes white.

7. Choose CUT OFF/DRIVE mode then press "2" button. This adjustment mode is CUT OFF (G). Press "CH o / p" until the horizontal line becomes white.

8. Choose CUT OFF/DRIVE mode then press "3" button. This adjustment mode is CUT OFF (B). Press "CH o / p" until the horizontal line becomes white.

9. Input the White Raster Signal from Video In.

10.Choose CUT OFF/DRIVE mode then press "4." Adjust the RED DRIVE as needed with the CH o / p buttons to get the following value, X= 286, Y=

294.

11.Choose CUT OFF/DRIVE mode then press "5." Adjust the BLUE DRIVE as needed with the CH o / p buttons to get the following value, X= 286.

12.Turn the power off and on again.

Tape M. EQ. Spec.

--- Pattern Generator

Figure

PATTERN GENERATOR

RF INPUT

See Reference

Notes below

Fig. 3

1-8-4 TD500EA

9. Sub-Brightness Adjustment

Purpose: To get proper brightness.

Symptom of Misadjustment: If Sub-Brightness is

incorrect, proper brightness cannot be obtained by adjusting the Brightness Control.

Test point Adj. Point Mode Input

---

Tape M. EQ. Spec.

CH o / p

buttons

---

SYMPTE

7.5IRE

3. Input the monoscope pattern.

4. Adjust the Focus Control on the FBT to obtain clear picture.

11. SIF Adjustment

Purpose: To set the SIF (Sound Intermediate Fre-

quency).

Symptom of Misadjustment: Audio may not sound correctly.

Note: This adjustment automatically done by the chrominance IC (IC1301).

---

White

Note: SYMPTE Setup level --- 7.5 IRE

1. Enter the Service Mode. (See page 1-8-1.) Then input SYMPTE signal from RF input.

2. Press MENU button. (Press MENU button then display will change B R T, C N T, T N T, V-T and SHP). Select BRT and press CH o / p buttons so that the bar is just visible (See above figure).

3. Turn the power off and on again.

Pattern

Generator

Figure

See below

Black

This bar just visible

Fig. 4

10. Focus Adjustment

Purpose: Set the optimum Focus.

Symptom of Misadjustment: If Focus Adjustment is

incorrect, blurred images are shown on the display.

12. CCS Text Box Location

When replacing the CRT, the CCS Box might not stay in appropriate position. Then, replace micro computer.

Note: This adjustment automatically done by the microcomputer.

13. Head Switching Position Adjustment

Purpose: Determine the Head Switching Point during

Playback.

Symptom of Misadjustment: May cause Head Switching Noise or Vertical Jitter in the picture.

Note: Unit reads Head Switching Position automatically and displays it on the screen (Upper Left Corner).

1. Playback test tape (FL8A, FL8N).

2. Enter the Service Mode. (See page 1-8-1.) Then press the number 5 button on the remote control unit.

3. The Head Switching position will display on the screen; if adjustment is necessary follow step 4.

6.5H(412.7µs) is preferable.

4. Press "CH o" or "CH p" button on the remote control unit if necessary. The value will be changed in

0.5H steps up or down. Adjustable range is up to

9.5H. If the value is beyond adjustable range, the display will change as:

Lower out of range: 0.0H Upper out of range: -.-H

5. Turn the power off and on again.

Test point Adj. Point Mode Input

--- Focus Control --- Monoscope

Tape M. EQ. Spec.

--- Pattern Generator See below.

Note: Focus VR (FBT) --- H.V. CBA

FBT= Fly Back Transformer

1. Operate the unit more than 30 minutes.

2. Face the unit to the East and degauss the CRT using a Degaussing Coil.

1-8-5 TD500EA

The following 2 adjustments normally are not attempted in the field. They should be done only when replacing the CRT then adjust as a preparation.

14. Purity Adjustment

Purpose: To obtain pure color.

Symptom of Misadjustment: If Color Purity Adjust-

ment is incorrect, large areas of color may not be properly displayed.

Test point Adj. Point Mode Input

---

C.P. Magnet (RB),

C.P. Magnet (RB-G),

Deflection Yoke

---

Dot Pattern

or

Crosshatch

Tape M. EQ. Spec.

--- Pattern Generator See below.

Figure

Test point Adj. Point Mode Input

---

Deflection Yoke

Purity Magnet

--- Red Color

Tape M. EQ. Spec.

--- Pattern Generator See below.

Figure

GREEN

RED

BLUE

Fig. 5

1. Set the unit facing east.

2. Operate the unit for over 30 minutes before adjusting.

3. Fully degauss the unit using an external degaussing coil.

4. Set the unit to the AUX Mode which is located before CH2 then input a red raster from video in.

5. Loosen the screw on the Deflection Yoke Clamper and pull the Deflection Yoke back away from the screen. (See Fig. 6.)

6. Loosen the Ring Lock and adjust the Purity Magnets so that a red field is obtained at the center of the screen. Tighten Ring Lock. (See Fig. 5,6.)

7. Slowly push the Deflection Yoke toward the bell of the CRT and set it where a uniform red field is obtained.

8. Tighten the clamp screw on the Deflection Yoke.

15. Convergence Adjustment

Purpose: To obtain proper convergence of red, green

and blue beams.

Symptom of Misadjustment: If Convergence Adjustment is incorrect, the edge of white letters may have color edges.

CRT

COIL

DY WEDGE

COIL CLAMPER

DEFLECTION YOKE

PURITY

SCREW

RB

RB-G

RING LOCK

C.P. MAGNET CLAMPER

C.P. MAGNET

SCREW

Fig. 6

C.P. MAGNET (RB)

R

G

B

R

G

B

Fig. 7

C.P. MAGNET (RB-G)

RB

G

Fig. 8

1. Set the unit to the AUX Mode which is located before CH2 then input a Dot or crosshatch pattern.

2. Loosen the Ring Lock and align red with blue dots or Crosshatch at the center of the screen by rotating (RB) C.P. Magnets. (See Fig. 7.)

3. Align red / blue with green dots at the center of the screen by rotating (RB-G) C.P. Magnet. (See Fig. 8.)

4. Fix the C.P. Magnets by tightening the Ring Lock.

5. Remove the DY Wedges and slightly tilt the Deflection Yoke horizontally and vertically to obtain the best overall convergence.

6. Fix the Deflection Yoke by carefully inserting the DY Wedges between CRT and Deflection Yoke.

1-8-6 TD500EA

FIRMWARE RENEWAL MODE

HOW TO UPDATE THE FIRMWARE VERSION

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

2. To enter the DVD mode, press [SELECT] button on the remote control unit. (DVD indicator lights on.)

3. To open the tray, press [OPEN/CLOSE] button on the remote control unit.

4. To put the unit into version up mode, press [9], [8], [7], [6], and [SEARCH MODE] buttons on the remote control unit in that order. The tray will open automatically. Fig. A appears on the screen .

BE F/W VERSION UP MODE

PLEASE INSERT A DISC

FOR BE F/W VERSION UP.

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

AppearanceNo. State

Reading... Sending files into the memory

1

Erasing... Erasing previous version data

2

Programming...

3 Writing new version data

7. After programming is finished, the tray opens automatically. Fig. C appears on the screen

BE F/W VERSION UP MODE

VERSION: ********

COMPLETED SUM:7abc(*3)

SELECT

EXIT:

Fig. A Version Up Mode Screen

The unit 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.

5. Load the disc for version up. (For closing the tray, only the [OPEN/CLOSE] button is available.)

6. The unit enters the F/W version up mode automatically. Fig. B appears on the screen.

BE F/W VERSION UP MODE

VERSION: ********

Reading...(*2)

Fig. C Completed Program Mode Screen

At this time, no buttons are available.

8. For tray opening, plug the AC cord into the AC outlet.

9. To close the tray, press [POWER] and [SELECT] buttons on the remote control unit or [SELECT] button on the unit.

HOW TO VERIFY THE FIRMWARE VERSION

1. After making sure that no disc is in unit, turn the power on.

2. Press [1], [2], [3], [4], and [DISPLAY] buttons on the remote control unit in that order. The F/E and B/E versions appear on the screen.

Fig. B Programming Mode Screen

1-9-1 TD601ROM

Servo/System Control Block Diagram

SW2406 SW2408

SW2401 SW2405

FROM/TO DVD SYSTEM CONTROL BLOCK DIAGRAM CN401

CN2401

3 SCLK 4 CS 5 REMOTE

POWER SUPPLY / AV CBA

(DECK ASSEMBLY)

KEY SWITCH

CN2802

6 6KEY1 5 5KEY2

CN2803

112 SDATA 12 13 15

CN1805

CN1804

11SDATA 12SCLK 13CS 15REMOTE

BLOCK DIAGRAMS <TV/VCR Section>

IC1201

(SERVO/SYSTEM CONTROL)

MAIN CBA

SW1201 SW1203, SW1206 SW1210

KEY SWITCH

AL+5V

P-ON+5V

D1224 S-LED

D1204 REC

Q1207

D1216 DVD

D1217 TV/VCR

Q1211

AL+5V

KEY0

5

KEY1

6

KYE2

8

SDATA

52 51

SCLK

50

CS

25

REM-OUT

REC-LED

21

DVD-H

48

TV/VCR-LED

26

REMOTE

SCL

SDA

I2C-OPEN

REC-SAFETY

C-SYNC

14

71

72 45

33

74

RS1201

REMOTE SENSOR

SW1211

REC SAFETY

IC1202

SCL

6 5

SDA CS

7

I2C-OPEN

C-SYNC

(MEMORY)

SCL

SDA

EXT-H

DVD-H

FROM/TO CHROMA /TUNER BLOCK DIAGRAM

AC HEAD ASSEMBLY

CONTROL HEAD

CYLINDER ASSEMBLY

PG SENSOR

DRUM MOTOR

M

LOADING MOTOR

M

CL1402 5CTL(+) 6CTL(-)

Q202

ST-SENS.

SENSOR CBA (ST-SENSOR)

CAPSTAN MOTOR

M

Q201

END-SENS.

SENSOR CBA

(END-SENSOR)

P-ON+5V

C-FG

CL1201

1C-F/R 2AL+12V 3D/L+12V

4

5FG-GND

6 7C-CONT 8M-GND 9D-FG

10LD-CONT 11D-CONT 12D-PG

Q1206

T-REEL

AL+12V D/L+12V P-ON+5V

Q1210

WF3

TP1201

CTL-AMP-OUT

SW1212 LD-SW

Q1205

RESETT+5V

AL+5V

CTL(+)

95 94

CTL(-)

CTL AMP-OUT

97

LD-SW1

9

ST-SENS.

7

END-SENS.

T-REEL

80

RESET

34

66

C-F/R

87

C-FG

76

C-CONT

89

D-FG

82

LD-CONT

77

D-CONT

90

D-PG

DVD-MAIN-PWR

P-ON-H

P-DOWN-L

Hi-Fi-CS

Hi-Fi-DATA

Hi-Fi-CLK

ST/SAP-IN

NORMAL-H

Hi-Fi-SW

DVD-MUTE

JACK-MUTE-H

A-MUTE-H

D-REC-H

VOL-CONT

V-H-SW

ENV-DET

REC/EE/PB

DV-SYNC

V-ENV

ROTA

RF-SW

TAPE-SPEED

EXT-H

RENTAL

SPL-PLAY

42

31 84

69 68 70

22

19

73 67

65 44 11

16 17 27

13 10 15 18 28 29 30 32

DVD-MAIN-PWR

P-ON-H

P-DOWN-L

Hi-Fi-CS

Hi-Fi-DATA

Hi-Fi-CLK

4

ST/SAP-IN

NORMAL-H

Hi-Fi-SW

A-MUTE-H

DVD-MUTE

JACK-MUTE-H

A-MUTE-H

D-REC-H

VOL-CONT

EXT-H

DVD-H

V-H-SW

ENV-DET

REC/EE/PB

DV-SYNC

V-ENV

ROTA

RF-SW

TAPE-SPEED

EXT-H

RENTAL

SPL-PLAY

FROM/TO POWER SUPPLY BLOCK DIAGRAM

FROM/TO Hi-Fi AUDIO BLOCK DIAGRAM

FROM/TO AUDIO BLOCK DIAGRAM

FROM/TO VIDEO BLOCK DIAGRAM

1-10-1 1-10-2 TD500BLS

Video Block Diagram

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

FROM/TO CHROMA/ TUNER BLOCK DIAGRAM

VCR-VIDEO

VIDEO

WF5

TP1402

V-OUT

WF4

IC1401

VIDEO/AUDIO SIGNAL PROCESS

42

38

Q1401

BUFFER

V-AGC

35

6dB

AMP

CHARA

MIX

FBC

R P

X1401

3.58MHz

62 61

VXO

WF2

Y/C MIX

MAIN CBA

45 47 49 44

CCD 1H

DELAY

DOC YNR Y/C COMB

Q1402

BUFFER

LUMINANCE

SIGNAL PROCESS

FROM SERVO/SYSTEM CONTROL BLOCK DIAGRAM

(DECK ASSEMBLY)

EXT-H RENTAL REC/EE/PB

SPL-PLAY ROTA

DV-SYNC TAPE-SPEED

CYLINDER ASSEMBLY

VIDEO (R)-1 HEAD

VIDEO (L)-1 HEAD

VIDEO (L)-2 HEAD

VIDEO (R)-2 HEAD

71 36

RENTAL REC/EE/PB

16

SPL-PLAY

73

ROTA

14

DV-SYNC

39

TAPE-SPEED

59

CL1401

V(R)-1

9

V-COM

8

V(L)-1

7

V(L)-2

6

V-COM

5

V(R)-2

4

FROM/TO SERVO/SYSTEM CONTROL BLOCK DIAGRAM

WF1

RF-SW V-ENV V-H-SW ENV-DET

TP1401

RF-SW

91 90 89 88 85 84 83 82

13 93 15 94

ENV-DET

CHROMINANCE

SIGNAL PROCESS

R L

L R

SP

EP

HPF

AGC AMP

R

P

ENV DET

74

TP1403

ENV

WF6

1-10-3 1-10-4 TD500BLV

Audio Block Diagram

REC-AUDIO SIGNAL

PB-AUDIO SIGNAL

DVD AUDIO SIGNAL DATA(AUDIO) SIGNAL

Mode : SP/REC

FROM DVD AUDIO BLOCK DIAGRAM CN402

FROM Hi-Fi AUDIO BLOCK DIAGRAM

FROM SERVO/ SYSTEM CONTROL BLOCK DIAGRAM

CN1804

7 5

A-OUT(R)5 5 A-OUT(L)3 3

DVD-H19 19

CN2402 SPDIF11 DVD-AUDIO(R) DVD-AUDIO(L) DVD-MUTE13

CN2803

CN2803CN1804

POWER SUPPLY / AV CBA

Q2205

BUFFER

IC2203

(OP AMP)

5 3 1

Q2207

7

2 1

12 13

Q2203

IC2202

(OUTPUT SELECT)

15

14

SW CTL.

1110

Q2209

P-ON+5V

IC2801

(AUDIO AMP)

5 2 12

DC VOL.

6

Q2204

Q2202

Q2208

VOLUME

JACK-MUTE-H

DVD-MUTE

7

JK2201

DIGITAL A-OUT

A-OUT(R)

A-OUT(L)

FROM/TO SERVO/SYSTEM CONTROL BLOCK DIAGRAM

CN2801

SP-L SP-GND 2

CN1805CN2802 A-OUT(R)10 10 A-OUT(L)9 9 SP-L11 11

1

SP2801 SPEAKER L-CH

CN1802 SP-R SP-GND 2

1

SP1801 SPEAKER

R-CH

JK1801 HEADPHONE JACK

FROM/TO Hi-Fi AUDIO BLOCK DIAGRAM

N-A-IN N-A-OUT

BLOCK DIAGRAM FOR SECTION 2 (DECK MECHANISM)

AC HEAD ASSEMBLY

AUDIO HEAD

AUDIO ERASE HEAD

FE HEAD UNIT

FULL ERASE HEAD

CL1402

A-PB/REC

4

A-COM

3

AE-H

1

AE-H/FE-H

2

CN1403

FE-H

1

FE-H GND

2

Q1873

Q1874

Q1872

BIAS OSC

Q1875

Q1871

P-ON+5V

76

78

80

4

99

IC1401

(AUDIO PROCESS)

EQ AMP

3

AUTO BIAS

SP/LP-ON

ALC

REC AMP

LINE AMP

11

EXT-H

96

98

FROM SERVO/SYSTEM CONTROL BLOCK DIAGRAM

MUTE

D-REC-H

EXT-H

7112

A-MUTE-H

D-REC-H

R

1

2

6

100

P

7

WF8

WF7

TP1802

NA-IN-YCA

1-10-5

MAIN CBA

TD500BLA1-10-6

Hi-Fi Audio Block Diagram

FROM CHROM/TUNER BLOCK DIAGRAM

SIF

IC1751(MTS/ SAP/ Hi-Fi AUDIO PROCESS/ Hi-Fi HEAD AMP)

NOISE DET

57

SIF DEMOD

SAP FILTER

STEREO FILTER

PILOT DET

SAP DEMOD

PILOT CANCEL

L-R DEMOD

MAIN CBA

ST/SAP SW

DC

dBX DEC

MATRIX

SERIAL DATA DECODER

RIPPLE FILTER

37 38 39

54

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

Hi-Fi-CS

Hi-Fi-DATA

Hi-Fi-CLK

P-ON+9V

FROM SERVO/ SYSTEM CONTROL BLOCK DIAGRAM

JK1703 A-IN(R)

JK1702 A-IN(L)

TO AUDIO BLOCK DIAGRAM

N-A-OUT

69

STEREO PLL

R-CH INSEL

6

NOR SW

48 47

R-CH PNR

P

R

SW NOISE

LIM DEV

COMP

VCO

HOLD PULSE

NOISE DET

LPF

MATRIX

R-CH BPF

OUTPUT SELECT

BO DET

COMP

ENV DET

MODE OUT

51 23

80

78

77

40 49

26

ST/SAP-IN

NORMAL-H

4

TP1701 Hi-Fi-OUT-L

TP1702 Hi-Fi-OUT-R

1

N-A-IN

A-OUT(L)

A-OUT(R)

Hi-Fi-SW

A-MUTE-H

TO SERVO/SYSTEM CONTROL BLOCK DIAGRAM

FROM/TO AUDIO BLOCK DIAGRAM

FROM SERVO/SYSTEM CONTROL BLOCK DIAGRAM

CYLINDER

LIM DEV

7

L-CH INSEL

13 14

L-CH PNR

R

SW

P

NOISE

VCO

COMP

LPF

L-CH BPF

AGC

AGC DET

31 30

R

L

24

27

CL1701A CL1701B

1 2 3

CL1701

1 2 3

CL1401

Hi-Fi-A(R) 3 Hi-Fi-COM 2 Hi-Fi-A(L) 1

ASSEMBLY

Hi-Fi AUDIO (R) HEAD

Hi-Fi AUDIO (L) HEAD

TD500BLH1-10-7 1-10-8

Chroma/Tuner Block Diagram

MAIN CBA

TU1001

AGC

1

IF

11

SDA

5

SCL

4

FSC

8

INT.MONITOR

I2C-OPEN

SDA 4 SCL 5

CN1303 is used for adjustment at factory

FROM/TO SERVO/SYSTEM CONTROL BLOCK DIAGRAM

TP1001

AGC

CN1303(NO CONNECTION) 1 2

SCL SDA

I2C-OPEN

C-SYNC

SF1001

SAW FILTER

REC VIDEO SIGNAL PB VIDEO SIGNAL

IC1301(VIDEO/AUDIO/CHROMA/DEFLECTION/IF)

59

63

64

43

26 27

18

SERIAL I/F

INTELLIGENT MONITORING

SYNC SEPARATION

IF SIGNAL CONTROL CIRCUIT

CHROMA TRAP

CHROMA BPF

VCR/DVD-Y

VCR

DVD-C

DVD VIDEO SIGNAL

58

41

38

X1301

CLOCK CONTROL CIRCUIT

3.58MHz

34

REC-AUDIO SIGNAL

IC1601

(INPUT SELECT)

4

14

15

Q1601

TUNER LINE

SW CTL

VCR DVD

11109

DVD

13 12

3 5

1 2

CN1803

14 14

CF1302

4.5MHz BPF

CF1301

4.5MHz TRAP

DVD-Y DVD-C13 13

Q1603

BUFFER

CN2804

BUFFER

Q2210

Q2211

Mode : SP/REC

VCR-VIDEO

Q1302

Q1301

CN2402

TP2201

DVD-V

VIDEO

SIF

DVD-Y14 DVD-C18 DVD-VIDEO16

FROM/TO VIDEO BLOCK DIAGRAM

TO Hi-Fi AUDIO BLOCK DIAGRAM

JK1701 V-IN

FROM DVD VIDEO BLOCK DIAGRAM CN402

IC1201

(SYSTEM CONTROL/OSD)

OSD-R

OSD-G

OSD-B

OSD-BLK

WF18

V-SYNC

WF17

H-SYNC

64 63 62 60

59 58

WF9

23 22 21 24

20 19

V-SYNC PROCESS CIRCUIT

H-SYNC PROCESS CIRCUIT

LUMA SIGNAL PROCESS CIRCUIT

OSD MIX/RBG MATRIX/ BLANKING

CHROMA SIGNAL PROCESS CIRCUIT

14 15 16

11 10 33

5

6

Q1602

DVD-H EXT-H

CN1301

WF10

CN1302

RED4 GREEN3 BLUE

2

7

V-DRIVE

3

H-DRIVE

2

FBP-IN

6

ACL/ABL

4

V-RAMP-NF

FROM SERVO/SYSTEM CONTROL BLOCK DIAGRAM

TO CRT/H.V. BLOCK DIAGRAM CN504

FROM/TO CRT/H.V. BLOCK DIAGRAM CN503

POWER SUPPLY / AV CBA

TD500BLC1-10-9 1-10-10

CRT/H.V. Block Diagram

REC VIDEO SIGNAL PB VIDEO SIGNAL DVD VIDEO SIGNAL

FROM POWER SUPPLY BLOCK DIAGRAM CN2602

CN502

1 +B 2 +B 4 DEF+B

JUNCTION B CBA

CL502B

IC551 (V-DEFLECTION CONTROL)

THERMAL

7

Q572

H.DRIVE

WF11

CL502A 1 2 4

1 +B 2 +B 4 DEF+B

Q571

H.OUTPUT

J553 +B ADJ

J563 GND

T572

1

3

5

4

T571 F.B.T.

8

10

7

9

AMP

1

6

FOCUS VR

HV

F

S

11

SCREEN VR

PROTECTION

5

PULSE UP

3

ANODE

FOCUS

SCREEN

WF12

CN571

5

4

3

1

L551

D.Y.

VDRIVE

HDRIVE

ANODE

FROM/TO CHROMA/TUNER BLOCK DIAGRAM CN1302

FROM CHROMA/TUNER BLOCK DIAGRAM CN1301

CN503 CL503B

7

V-DRIVE

3

H-DRIVE

2

FBP-IN

6

ACL/ABL

4

V-RAMP-NF

CN504 CL504A

4

RED

3

GREEN

2

BLUE

JUNCTION A CBA

6

CL503A 7 3 2 6 4

4 3 2

7

V-DRIVE

3

H-DRIVE

2

FBP-IN

6

ACL/ABL

4

V-RAMP-NF

CL504B 4 RED 3

GREEN 2

BLUE

Q501

RED AMP

WF13

HEATER 11 P-ON+180V 33

H.V. CBA

WF14

Q502

GREEN AMP

CL501BCL501A

BLUE AMP

Q503

WF15

JK501

CN501

FOCUS SCREEN

GND

R G

B

HEATER

GND

V501 CRT

CRT CBA

1-10-121-10-11

TD500BLCRT

Power Supply Block Diagram

CAUTION !

Fixed voltage power supply circuit is used in this unit. If Main Fuse (F2601) 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.

4A/125V

W2601

DEGAUSSING COIL

F2601 4A/125V

CN2601

LINE FILTER

PS2601

L2601

D2603 D2606

BRIDGE

RECTIFIER

Q2601

SWITCHING

CAUTION

FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE.

4A/125V

T2601

6

4

2

14

13

12

11

9

8

ATTENTION : POUR UNE PROTECTION CONTINUE LES RISQES D'INCELE N'UTILISER QUE DES FUSIBLE DE MEMO TYPE. RISK OF FIRE-REPLACE FUSE AS MARKED.

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

CN2602 TO CN502

1 +B 2 +B 4 DEF+B

Q2606

CN2804 CN1803

Q2613

6 6P-ON+9V 8 8AL+9V 3 3AL+33V

4 4P-ON+9V 16 16AL+12V 10 10AC-DOWN 19 19P-ON+5V

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

IC1602

+5V REG.

Q1608

SW+5V

TO CRT/H.V.

BLOCK DIAGRAM

Q1611

SW+5V

Q1613

SW+5V

Q1609

+5V REG.

P-ON+5V

T+5V AL+33V P-ON+9V AL+12V AL+5V

Q1612

Q2602

1

IC2611

ERROR VOLTAGE DET

4

10

Q2607

VR2601 +B ADJ

1

Q2604

23

FEED BACK

IC2615

+4V

1 2

REG.

5

Q2615

Q2616

Q2610

Q2608

Q2611

Q2605

IC2616

IC2617

+1.8V

1 2

REG.

4

CN2803 CN1804

17 17P-ON-H 16 16

DVD-MAIN-PWR

CN2402 CN402 CN701

9 9DVD-ON+5V 3 3EV+3.3V

Q2614

SW

CTL.

Q2617

2 2EV+2.5V 1 1EV+2.5V

16 16DVD-ON+5V 18 18DVD-ON+1.8V 17 17DVD-ON+1.8V

9 9DVD-ON+3.3V 8 8DVD-ON+3.3V

7 7DVD-ON+3.3V 11 11EV+9V 10 10EV+9V

6 6PWRCON

MAIN CBA

CN401CN2401

CN404

2 13DVD-ON+5V

CN404

11 16EV+3.3V 23 4EV+2.5V 24 3EV+2.5V 21 6DVD-ON+5V 22 5DVD-ON+5V 25 2DVD-ON+1.8V 26 1DVD-ON+1.8V

8 19DVD-ON+3.3V

9 18DVD-ON+3.3V 10 17DVD-ON+3.3V 12 15EV+9V 13 14EV+9V

P-DOWN-L (TO PIN84 OF IC1201)

+5V CTRL (FROM PIN49 OF IC1301)

P-ON-H (FROM PIN31 OF IC1201)

DVD-MAIN-PWR (FROM PIN42 OF IC1201)

DVD-ON+5V

CN501

EV+3.3V EV+2.5V

DVD-ON+5V

DVD-ON+1.8V

DVD-ON+3.3V

AL+9V

FILTER CBA

HOT

COLD

Q2612

POWER SUPPLY/AV CBA

CN2401

6 PWRCON

FROM DVD SYSTSM CONTROL BLOCK DIAGRAM CN401

1-10-141-10-13

DVD MAIN CBA UNIT

TD500BLP

DVD System Control Block Diagram

FROM/TO RF SIGNAL PROCESS /SERVO BLOCK DIAGRAM

TFWD TREV TIN TOUT SCK STDIO SEN MUTE PS

42 41

59 60 70 72 10 46 MUTE 47 PS

IC301

(FRONT END PROCESSOR)

TFWD TREV TIN TOUT SCK STDIO SEN

HANG

+3.3V

48

BLOCK DIAGRAMS<DVD Section>

IC601

(DVD HOST PROCESSOR)

TFWD

200

TREV

201 187

TIN TOUT

188

IC605

RESET

5 4

Q701

124

FROM/TO DVD SIGNAL PROCESS BLOCK DIAGRAM

CD/DVD CFE CAS STANDBY

ADDRESS BUS

DATA BUS

NINT1 NINT2 WAIT /RE /WEL CS1 RESET

CD/DVD

71

CFE

62

CAS

63

STANDBY

64

13

~ 16 26

CPUADR0

33

CPUADR17

35

40

CPUDT0

84

~ ~~ 91

CPUDT7

76

NINT1

77

NINT2 WAIT

1

/RE

2

/WEL

3

CS1

6

RESET

11

READY

OSCO2324

~

KEY OUT

KEY IN

49 82

/FERS

OSCI

X301

(16.9344MHz)

53 22BUSCLR BUSCLR 52

SDA

51

SDA

50

SCL

79SCL

44

45

IC606

(INVERTER)

2 4

X601 27MHz

+3.3V

208 186

120

20 21

127

READY /FERS

CLOCK

SDA SCL

IRQ2

VFD-CLK REMOTE

PWRCON

3VFD-STB 1VFD-DIN

204 125 207

CN501 CN403

CS

21

SDATA

22

SCLK

24

REMOTE

26

PWRCON

7

6 5 3 1 7

FILTER CBA

CN401

CS 4

SDATA 2

SCLK 3

REMOTE 5

PWRCON 6

FROM/TO SERVO/SYSTEM CONTROL BLOCK DIAGRAM CN2401

TO POWER SUPPLY BLOCK DIAGRAM CN2401

FG SENSOR

FG CBA

RELAY

CBA

CN401

FG-IN10

1-10-15

FG-IN

IC102 (OP AMP)

1480

12

DVD MAIN CBA UNIT

1-10-16

TD500BLDS

RF Signal Process/Servo Block Diagram

PICK-UP UNIT

DETECTOR

A 6

B 9 C 10 D 7

F 4

E 5

CD/DVD 21

CD-LD 20

DVD-LD 12

PD-MONI 11

GND 14 GND 13 GND 19

CN101

IC103

(SW)

AMP

Q102

1 3

AMP

Q101

DATA(VIDEO/AUDIO) SIGNAL FOCUS SERVO SIGNAL TRACKING SERVO SIGNAL

IC101 (RF SIGNAL PROCESS)

HOLD 47 57 58 59 60 62 63

4 2 3 1

6

INPUT

MATRIX

TRACKING BALANCE

FOCUS BALANCE

LPC

AMP

VGA

EQ

TRACKING ERROR DET

FOCUS ERROR DET

VEL ADJ

BDO DET

OFTR DET

MIRROR DET

SERIAL

I/F

41 46

31 30 40

39

18

6

22

7

20

11 13 14 12

SLIDE SERVO SIGNAL DISK SERVO SIGNAL

DVD MAIN CBA UNIT

TESTSG

ARF

NARF

STANDBY

SCK

STDIO

SEN

CD/DVD

FROM/TO DVD SIGNAL PROCESS BLOCK DIAGRAM

LOADING MOTOR

SPINDLE MOTOR

SLIDE MOTOR

FSTS

CN101

FS(+) 17

FS(-) 16

TS(+) 15

TS(-) 18

RELAY CBA

M

TRAY

-IN

TRAY-OUT

TRAY-IN 3

TRAY-OUT 4

CN401

LM(+) 1

LM(-) 2 SP(-) 6

SP(+) 7

SL(+) 9

SL(-) 8

GND 5

4

+3.3V

IC401

(SERVO DRIVE)

12 6 11

14 13

10

9

18 17

15 16

FOCUS

MOTOR DRIVE

TRACKING

MOTOR DRIVE

MUTE

LOADING

MOTOR DRIVE

SPINDLE

MOTOR DRIVE

SLIDE

MOTOR DRIVE

+

-

+

-

POWER

SAVE

21

24 23 22 27 26 25

5

1 2

V-REF

4

IC201 (SERVO DSP)

DAC1

115

DAC0

114

68

SPDRV

67

TRSDRV

FBAL TBAL

OFTR

BDO

AD1

AD0

TRCRS

AD2

AD3

66 65 51 52 118

117

90

119

120

IC102

(OP AMP)

5

3

FROM/TO DVD SYSTEM CONTROL BLOCK DIAGRAM

CFE

7

108

CAS

1

MUTE TFWD

TREV

TIN

PS

TOUT

SW CBA

1-10-18

TD500BLRF1-10-17

DVD Signal Process Block Diagram

IC201 (DVD SIGNAL PROCESS)

FROM/TO RF SIGNAL PROCESS/SERVO BLOCK DIAGRAM

ARF NARF

TESTSG

111

110

82

PLL VCO

DATA SLICER

BCA

DVD DEMODULATOR

DATA(VIDEO/AUDIO) SIGNAL

VIDEO/AUDIO INTERFACE

PARA0 PARA1 PARA2 PARA3 PARA4 PARA5 PARA6 PARA7

172 168 166 164 160 158 151 149

DVD MAIN CBA UNIT

PARA0-PARA7

TO DVD VIDEO BLOCK DIAGRAM

FROM/TO DVD SYSTEM CONTROL BLOCK DIAGRAM

ADDRESS BUS

DATA BUS

NINT1 NINT2 WAIT /RE /WEL CS1 RESET

X201

(16.9344MHz)

30

~

CPUADR0

22 17

CPUADR17

9

CPUDT0

44

~ ~

37

CPUDT7

2

NINT1

5

NINT2 WAIT

6

/RE

36

/WEL

35

CS1

34

RESET

47

OSCI1

79

OSCO1

80

MEMORY MANAGER

~

CPU INTERFACE

TD500BLD1-10-19 1-10-20

DVD Video Block Diagram

DATA(VIDEO) SIGNAL VIDEO SIGNALDATA(AUDIO) SIGNAL

FROM DVD SIGNAL PROCESS BLOCK DIAGRAM

TO DVD AUDIO BLOCK DIAGRAM

PARA0-PARA7

A-MUTE

ADAC-MD

ADAC-MC ADAC-ML

IC601 (DVD HOST PROCESSOR)

PARA0

6

~

PARA7

13

191

A-MUTE

190

ADAC-MD

189

ADAC-MC ADAC-ML

192

~

INTERNAL PERIPHERALS PORTS

DATA(VIDEO/AUDIO) SIGNAL

CPU

CENTRAL COMMAND PORT

ST20 ARBITER & MEMORY CONTROLLER

I/F

CD FIFO

CACHE SUBSYSTEM

FRONT-END & LINK INTERFACE

SDRAM BLOCK MOVE

AUDIO DECODER

51 52 55 56 57

PCM-BCK

PCM-DATA0

PCM-SCLK

PCM-LRCLK

SPDIF

TO DVD AUDIO BLOCK DIAGRAM

IC602

(8Mbit FLASH MEMORY)

25

~

A0

16

~

8

A18

~

1

48

DQ0

29

~

DQ15

45

11

WE

26

CE

28

OE

ADDR1-ADDR20

DATA0-DATA15

161

170 173

182

141

158

128 132 117

~

ADDR1

ADDR20

~

DATA0

~

DATA15

DQM0 CS3 OE

~

PROGRAMMABLE

CPU INTERFACE

SHARED SDRAM INTERFACE

~

AD0

AD13

58 63~66 73~ 74

20 26~ 2 13~29 35~ 42 53~

~

AD0

AD13

VIDEO DECODER

~

DQ0

DQ15

97

102

~84 93~

~

DQ0

DQ15

SDRAM ARBITER

VIDEO FILTERING

DQML

DQMU

RAS

CAS

79 80 78

7677

17 18 39 16

15

RAS

CAS

LDQM

UDQM

WE

19

WE

OSD, SP DECODER & MIXING

CS

DENC

32 33 34

CN701

5 14DVD-Y 9 10DVD-C 7 12

DVD-VIDEO

FILTER CBA

CN402

14DVD-Y

TO CHROMA/TUNER

18DVD-C

BLOCK DIAGRAM CN2402

16DVD-VIDEO

IC604

(64Mbit SDRAM)

DVD MAIN CBA UNIT

1-10-22

TD500BLDV1-10-21

DVD Audio Block Diagram

AUDIO SIGNALDATA(AUDIO) SIGNAL

FROM DVD VIDEO BLOCK DIAGRAM

SPDIF PCM-BCK PCM-DATA0 PCM-LRCLK

ADAC-MD ADAC-MC ADAC-ML

IC801 (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

DAC

LPF+AMP

L-CH

R-CH

12 11

CN701

181SPDIF 13 6

DVD AUDIO(L) 154DVD AUDIO(R) 12 7A-MUTE(L) 14 5A-MUTE(R) 16 3A-MUTE

7

8

CN404

CN402

11 SPDIF

5 DVD-AUDIO(L) 7 DVD-AUDIO(R)

13 DVD-MUTE

TO AUDIO BLOCK DIAGRAM CN2402

FILTER CBA

PCM-SCLK

A-MUTE

16

DVD MAIN CBA UNIT

TD500BLDA1-10-23 1-10-24

SCHEMATIC DIAGRAMS / CBA’S AND TEST POINTS

Standard Notes

Warning

Many electrical and mechanical parts in this chassis have special characteristics. These characteristics often pass unnoticed and the protection afforded by them cannot necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts that have these special safety characteristics are identified in this manual and its supplements; electrical components having such features are identified by the mark " # " in the schematic diagram and the parts list. Before replacing any of these components, read the parts list in this manual carefully. The use of substitute replacement parts that do not have the same safety characteristics as specified in the parts list may create shock, fire, or other hazards.

Capacitor Temperature Markings

Mark

(B)

(F) +30 -80% 20°C -25~+85°C

Capacity

change rate

10%

±

Standard

temperature

20°C -25~+85°C

Temperature

range

Note:

1. Do not use the part number shown on these drawings for ordering. The correct part number is shown in the parts list, and may be slightly different or amended since these drawings were prepared.

2. All resistance values are indicated in ohms (K=10

6

).

M=10

3. Resistor wattages are 1/4W or 1/6W unless otherwise specified.

4. All capacitance values are indicated in µF

-6

(P=10

5. All voltages are DC voltages unless otherwise specified.

µF).

3

,

(SR)

(Z) +30 -80% 20°C -10~+70°C

Capacitors and transistors are represented by the following symbols.

±

15%

20°C -25~+85°C

CBA Symbols

(Top View) (Bottom View)

+

Electrolytic Capacitor

(Bottom View)

Transistor or Digital Transistor

E C B

(Top View)

NPN Transistor

(Top View)

PNP Transistor

Schematic Diagram Symbols

Digital Transistor

E C B

(Top View)

E C B

NPN Digital Transistor

E C B

(Top View)

PNP Digital Transistor

E C B

1-11-1 TD601SC

LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING PAGES:

1. 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

A V

2. CAUTION:

Fixed Voltage (or Auto voltage selectable) power supply circuit is used in this unit. If Main Fuse (F2601) is blown, first 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.

3. Note:

(1) Do not use the part number shown on the drawings for ordering. The correct part number is shown in the parts

list, and may be slightly different or amended since the drawings were prepared.

(2) To maintain original function and reliability of repaired units, use only original replacement parts which are listed

with their part numbers in the parts list section of the service manual.

4. Wire Connectors

(1) Prefix symbol "CN" means "connector" (can disconnect and reconnect).

(2) Prefix symbol "CL" means "wire-solder holes of the PCB" (wire is soldered directly).

DES FUSIBLE DE MEMO TYPE. RISK OF FIRE-REPLACE FUSE AS MARKED.

This symbol means fast operating fuse. Ce symbole represente un fusible a fusion rapide.

5. Note: Mark "•" is a leadless (chip) component

6. Mode: SP/REC

7. Voltage indications for PLAY and REC modes on the schematics are as shown below:

< DVD Section >

5.0

The same voltage for both PLAY & STOP modes

5.0 (2.5)

PLAY mode STOP mode

231

Indicates that the voltage is not consistent here.

The same voltage for both PLAY, REC & DVD modes

< TV/VCR Section >

231

5.0

5.0 (2.5) [ ]

Indicates that the voltage is not consistent here.

PLAY mode REC mode DVD mode

8. How to read converged lines

1-D3

3

AREA D3

Distinction Area Line Number

2

AREA B1

(1 to 3 digits)

Examples:

1. "1-D3" means that line number "1" goes to area "D3".

2. "1-B1" means that line number "1" goes to area "B1".

1

1-D3

ABCD

9. Test Point Information

Unit: Volts

1-B1

: Indicates a test point with a jumper wire across a hole in the PCB.

: Used to indicate a test point with a component lead on foil side.

: Used to indicate a test point with no test pin.

: Used to indicate a test point with a test pin.

1-11-2 TD601SC

Main 1/4 Schematic Diagram < TV/VCR Section >

A5

A4

A3

B5

B4

B3

C5

C4

C3

D5

D4

D3

REC Audio Signal

E5

E4

E3

PB Audio Signal

F5

F4

F3

DVD Video Signal

DVD Audio Signal

G5

G4

G3

MAIN 1/4

Ref No. P ositio n

ICS IC1201 IC1202 IC1602

TRANSISTORS Q1205 Q1206 Q1207 Q1210 Q1211

Q1608 B-1 Q1609 Q1611 Q1612 Q1613

CONNECTORS

CL1201 CN1802 CN1803 A-2 CN1804 CN1805

TEST POI NTS

J1248 E-2 TP1201 TP1631

TP1632 C-1

D-4 F-5 B-2

D-2 E-5 B-3 B-3 B-3

B-1 B-1 C-1 C-1

A-3

G-1

G-3 G-2

C-5 C-2

A2

A1

B2

B1

C2

C1

D2

D1

E2

E1

F2

F1

G2

G1

1-11-3

1-11-4

1-11-5 TD500SCM1

Main 2/4 Schematic Diagram < TV/VCR Section >

H5

H4

H3

I5

I4

I3

J5

J4

J3

REC Video Signal REC Audio Signal

K5 L5

K4

K3

L4

L3

M5

M4

M3

PB Video Signal PB Audio Signal

N5

N4

N3

MAIN 2/4

Ref No. P osi tion

IC

IC1401

TRANSISTORS Q1401 Q1402 Q1403 Q1491 Q1871 Q1872 Q1873 Q1874 Q1875

CONNECTORS CL1401 H-4 CL1402 H-1 CL1403 H-1

CL1701A H-4 CL1701B H-4

TEST POINTS TP1401 TP1402 TP1403

TP1802 H-5

I-2

K-2

L-4 L-4 L-2

I-2 I-2 I-1 I-1 I-1

J-2 L-2 J-4

H2

H1

I2

I1

J2

J1

K2

K1

L2

L1

M2

M1

N2

N1

1-11-6 1-11-7 1-11-8 TD500SCM2

Main 3/4 Schematic Diagram < TV/VCR Section >

O5

O4

P5

P4

Q5

Q4

R5 S5

R4

S4

REC Video Signal

T5

T4

PB Video + DVD Video Signal

U5

U4

MAIN 3/4

Ref No. P osi tion

IC

IC1301

TRANSISTORS Q1301 Q1302

CONNECTORS CN1301 CN1302 CN1303

TEST POINT

TP1001 Q-3

R-2

R-5

Q-4

U-2

O-1

U-5

O3

O2

P3

P2

Q3

Q2

R3

R2

S3

S2

T3

T2

U3

U2

O1

1-11-9

P1

Q1

R1

S1

1-11-10 1-11-11

T1

U1

TD500SCM3

Main 4/4 Schematic Diagram < TV/VCR Section >

REC Video Signal

PB Video Signal

V5

V4

W5

W4

X5

X4

Y5 Z5

Y4

Z4

REC Audio Signal

AA5

AA4

D VD Video Signal PB Video + DVD Video Signal

PB Audio Signal

BB5

BB4

MAIN 4/4

Ref No. P osit ion

ICS IC1601 IC1751

TRANSISTORS

Q1601 Q1602 BB-3

Q1603

TEST POI NTS

TP1701 TP1702 W-3

AA-2

W-2

AA-3

Z-2

W-2

V3

V2

W3

W2

X3

X2

Y3

Y2

Z3

Z2

AA3

AA2

BB3

BB2

V1

1-11-12

W1

X1

Y1

1-11-13

Z1

AA1

BB1

1-11-14

TD500SCM4

Ref No. Pos ition

IC551

A-2

Q571

C-2

Q572

B-2

Q591

B-1

CL501A

D-2

CL502A

D-1

CL503A

D-1

CN571

B-2

J551

C-1

J552

C-1

J553

C-2

J563 B-2

TEST POINTS

IC

CONNECTORS

H.V.

TRANSISTORS

CORRECTION SHEET

TV/DVD/VCR COMBINATION

Models: 6719DC / SSC719C / EWC19T2

“H.V. Schematic Diagram < TV/VCR Section >” on page 1-11-15,16 of “SCHEMATIC

DIAGRAMS / CBA’S AND TEST POINT” section in the Service Manual is wrong.

When servicing, please use this sheet instead of ones in the Service Manual.

A2

A1

B2

B1

C2

C1

D2

D1

CRT Schematic Diagram < TV/VCR Section >

A2

B2

REC Video Signal

C2

PB Video + DVD Video Signal

CRT

Ref No. Posit ion

Q501 Q502 Q503

CL501B A-2 CL504B A-2

CN501 C-1

TRANSISTORS

B-2 B-2 B-1

CONNECTORS

A1

1-11-17

B1

C1

1-11-18

TD500SCCRT

Power Supply/AV Schematic Diagram < TV/VCR Section >

P

REC Audio Signal

D VD Video Signal

CAUTION !

Fixed voltage power supply circuit is used in this unit. If Main Fuse (F2601) 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.

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

A5

A4

A3

B5

B4

B3

4A/125V

C5

C4

C3

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-REPLACE FUSE AS MARKED.

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

D5

D4

D3

E5

E4

E3

F5

F4

F3

PB Audio Signal DVD Audio Signal DATA(Audio) Signal

G5

G4

G3

OWER SUPPLY/ A V

Ref No. P osit ion

ICS IC2202 IC2203 IC2611 IC2615 IC2616 IC2617 IC2801

TRANSISTORS Q2202 Q2203 Q2204 Q2205 Q2207 Q2208 Q2209 Q2210 Q2211 Q2601 Q2602 Q2604 Q2605 Q2606 Q2607 Q2608 Q2610 Q2611 Q2612 Q2613 Q2614 Q2615 Q2616 Q2617

CONNECTORS

CN2401 CN2402 CN2601 CN2602 CN2801 CN2802 CN2803 CN2804

TEST POI NTS TP2200 TP2201 TP2202 TP2203

ADJUSTMENT

VR2601 D-4

D-2 D-3 C-4 B-3 B-2 B-1 F-4

F-1 E-2 F-1 F-1 B-1 F-1 F-1 B-3 B-3 B-5 B-5 C-4 E-4 E-4 E-4 C-4 C-1 D-1 C-1 E-5 B-2 B-2 B-2 C-1

A-2 A-3 A-4

A-3 G-2 G-3 G-4 G-5

C-3

A-3

A2

A1

B2

B1

C2

C1

D2

D1

E2

E1

F2

F1

G2

G1

VOLTAGE CHART (Power off mode)

Ref. No.12345

IC2611 11.4 10.3 0.3 3.1 --IC2615 0.1 0 0 0.8 3.7 IC2616 0.7 0 1.5 --- --IC2617 0.8 0 0 0 ---

Ref. No.

Q2601

Ref. No.

Q2602 Q2604 Q2605 Q2606

Q2607 Q2608 Q2610 Q2611 Q2612 Q2613 Q2614 Q2615 Q2616 Q2617

SDG

0164.71.4

ECB

01.40.1

6.8 0.1 0.1

08.00

9.4 9.3 8.7

000.7

0.4 3.7 0.4

9.4 0.4 9.4

0.4 0 0.3

09.30

0.9 0 0

0.8 0.8 1.5

000.7

00.70.2

0.1 0.8 0.4

1-11-19 1-11-20 1-11-21

TD500SCP

DVD Main 1/4 Schematic Diagram < DVD Section >

MAIN 1/4

CONNECTORS

ICS

TRANSISTORS

A5

B5

C5

D5

E5

DATA(Video+Audio) Signal Focus Servo Signal Tracking Servo Signal

F5

G5

Ref No. Positi o n

IC101 C-4 IC102 F-5 IC103 B-3 IC301 E-2

Q101 B-3 Q102 B-3

A4

B4

C4

D4

E4

F4

CN101 A-4 CN302 G-2 CN501 A-2

G4

A3

A2

B3

B2

C3

C2

D3

D2

E3

E2

F3

F2

G3

G2

A1

1-11-22

B1

C1

D1

1-11-23

E1

F1

G1

1-11-24

TD500SCD1

DVD Main 2/4 Schematic Diagram < DVD Section >

MAIN 2/4

CONNECTORS

ICS

TRANSISTOR

H5

I5

J5

K5

L5

DATA(Video+Audio) Signal Focus Servo Signal

Tracking Servo Signal

Spindle Servo Signal Slide Servo Signal

M5

N5

Ref No. Positi o n

IC201 N-2 IC401 I-3

Q401 I-3

CN201 N-1 CN401 H-4

H4

H3

I4

I3

J4

J3

K4

K3

L4

L3

M4

M3

N4

N3

H2

H1

I2

I1

J2

J1

K2

K1

L2

L1

M2

M1

N2

N1

1-11-25 1-11-26

1-11-27

TD500SCD2

DVD Main 3/4 Schematic Diagram < DVD Section >

MAIN 3/4

Q701 P-5

ICS

TRANSISTOR

DATA(Video+Audio) Signal DATA(Video) Signal

D VD Video Signal

DATA(Audio) Signal

Ref No. Positi o n

IC601 T-1 IC602 O-3 IC605 O-5 IC606 O-4

O5

O4

P5

P4

Q5

Q4

R5

R4

S5

S4

T5

T4

U5

U4

O3

O2

P3

P2

Q3

Q2

R3

R2

S3

S2

T3

T2

U3

U2

O1

1-11-28

P1

Q1

R1

1-11-29

S1

T1

U1

1-11-30

TD500SCD3

DVD Main 4/4 Schematic Diagram < DVD Section >

D VD Video SIGNAL DATA(Audio) Signal

DVD Audio Signal

V3

V2

W3

W2

X3

X2

Y3

Y2

Z3

Z2

AA3

AA2

V1

1-11-31

W1

X1

Y1

Z1

1-11-32

AA1

TD500SCD4

Filter Schematic Diagram < DVD Section >

F

A4

A3

B4

B3

C4

C3

D VD Video SIGNAL DATA(Audio) Signal DVD Audio Signal

ILTER

Ref No. Posit ion

CONNECTORS CN401 CN402 CN403 CN404

TEST PO IN TS

TP401 TP402 B-1

C-4 C-2 A-4 A-2

C-1

A2

A1

B2

B1

1-11-33 1-11-34

C2

C1

TD500SCF

H.V . CBA T op View < TV/VCR Section >

CL503A

H

J553 +B ADJ

R583 (H Adjustment)

J551, J552 X-RA Y CHK

J563 GND

.V. CBA

Ref No. P osi tion Ref No . Po si ti o n

IC

IC551

TRANSISTORS Q571 Q572 Q591

CONNECTORS CL501A B-2 J563 B-2 CL502A C-1

B-2

B-1 C-1 C-1

CONNECTORS

CN571

TEST POINTS J551 J552 J553

C-2 A-1

A-2 B-2 B-2

1-11-35 1-11-36

BT5200F01023-A

H.V. CBA Bottom View < TV/VCR Section >

WF12

PIN 5 OF CN571

1-11-37

WF11

Q571 Collector

1-11-38

BT5200F01023-A

Main CBA Top View < TV/VCR Section >

Sensor CBA Top View (END-SENSOR)

BHB300F01011-B

BHB300F01011-A

WF5

TP1402 V -OUT

WF1

TP1401 RF-SW

WF6

TP1403

ENV

TP1632

GND

WF7

TP1802 NA-IN

-YCA

TP1001 AGC

MAIN CBA

Ref No. P osi tion

ICS IC1201 IC1202 IC1301 IC1401 IC1601 IC1602 IC1751

TRANSISTORS Q1205 Q1206 Q1207 Q1210 Q1211 Q1301 Q1302 Q1401 Q1402 Q1403 Q1491 Q1601 Q1602 Q1603 Q1608 Q1609 Q1611 Q1612 Q1613 Q1871 Q1872 Q1873 Q1874 Q1875

CONNECTORS

CL1201 CL1401 C-2 CL1402 D-3

CL1403 C-1 CL1701A D-2 CL1701B C-2

CN1301

CN1302

CN1303

CN1802

CN1803

CN1804

CN1805

TEST POI NTS

J1248 E-1 TP1001 TP1201 TP1401 TP1402 TP1403 TP1631 TP1632 TP1701 TP1702

TP1802 E-3

B-3 B-4 E-5 C-3 F-2 F-1 D-2

B-2 B-3 A-1 A-1 A-1 F-4 F-4 B-3 C-3 B-2 C-4 F-2 F-2 F-2 F-2 E-2 F-1 E-2 F-2 D-3 D-3 D-4 D-4 E-3

C-5

E-5 D-5 F-4 B-5 F-1 D-1 D-1

F-5 D-5 E-1 E-1 E-1 E-1 E-1 E-1 E-1

Sensor CBA T op Vie w (START-SENSOR)

BHB300F01011-B

BHB300F01011-A

1-11-39

WF3

TP1201 CTL-AMP-OUT

1-11-40

D1304

Cathode

(C-T rap Adjustment)

1-11-41 BTD500F01012

Main CBA Bottom View < TV/VCR Section >

WF8

PIN 7 OF IC1401

WF2

PIN 61 OF IC1401

WF4

PIN 42 OF IC1401

WF17

PIN 59 OF IC1201

WF16

PIN 58 OF IC1201

WF10

PIN 11 OF IC1301

1-11-42 1-11-43 1-11-44

WF9

PIN 20 OF IC1301

BTD500F01012

Power Supply / AV CBA Top View < TV/VCR Section >

P

CAUTION !

Fixed voltage power supply circuit is used in this unit. If Main Fuse (F2601) 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.

VR2601

+B ADJ

4A/125V

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-REPLACE FUSE AS MARKED.

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

BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER SUPPLY CIRCUIT, AN ISOLATION TRANSFORMER MUST BE USED. ALSO, IN ORDER TO HAVE THE ABILITY TO INCREASE THE INPUT SLOWL Y , WHEN TROUBLESHOOTING THIS TYPE POWER SUPPL Y CIRCUIT, A VARIABLE ISOLATION TRANSFORMER IS REQUIRED.

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

OWER SUPPLY/AV CBA

Ref No. P osi tion

ICS IC2202 IC2203 IC2611 IC2615 IC2616 IC2617 IC2801

TRANSISTORS Q2202 Q2203 Q2204 Q2205 Q2207 Q2208 Q2209 Q2210 Q2211 Q2601 Q2602 Q2604 Q2605 Q2606 Q2607 Q2608 Q2610 Q2611 Q2612 Q2613 Q2614 Q2615 Q2616 Q2617

CONNECTORS CN2401 CN2402 CN2601 CN2602 CN2801 CN2802 CN2803 CN2804

TEST POINTS TP2200 TP2201 TP2202 TP2203

ADJUSTMENT

VR2601 A-2

E-2 E-4 A-3 B-2 C-2 B-1 D-1

A-4 E-1 A-4 B-4 C-4 C-3 C-3 C-3 C-4 B-3 B-3 A-3 A-1 A-1 A-1 C-3 C-2 C-2 C-1 A-1 C-2 C-2 C-2 C-2

E-4 D-4 B-3 A-2 F-4 C-1 C-1 A-1

B-1 B-4 C-4 B-4

1-11-45 1-11-46 1-11-47

BTD500F01022-A

Power Supply / AV CBA Bottom View < TV/VCR Section >

CAUTION !

Fixed voltage power supply circuit is used in this unit. If Main Fuse (F2601) 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.

4A/125V

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-REPLACE FUSE AS MARKED.

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

BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER SUPPLY CIRCUIT, AN ISOLATION TRANSFORMER MUST BE USED. ALSO, IN ORDER TO HAVE THE ABILITY TO INCREASE THE INPUT SLOWL Y , WHEN TROUBLESHOOTING THIS TYPE POWER SUPPL Y CIRCUIT, A VARIABLE ISOLATION TRANSFORMER IS REQUIRED.

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

WF21

PIN 5 OF CN2402

WF22

PIN 7 OF CN2402

WF23

PIN 11 OF CN2402

WF18

PIN 14 OF CN2402

WF19

PIN 16 OF CN2402

WF20

PIN 18 OF CN2402

1-11-48 1-11-49 1-11-50

BTD500F01022-A

CRT CBA T op View < TV/VCR Section >

CRT CBA

Ref No. Po si ti o n

TRANSISTORS Q501 Q502 Q503

CONNECTORS CL501B B-1 CL504B A-1

CN501 A-1

B-1 B-1 A-2

CRT CBA Bottom View < TV/VCR Section >

WF14

Q502 Collector

WF13

Q501 Collector

WF15

Q503 Collector

1-11-51 1-11-52 BT5200F01023-B

Junction-A CBA Top View

F

Junction-A CB A Bottom View

Filter CBA Top View < DVD Section >

< TV/VCR Section >

BT5200F01023-D

Junction-B CBA Top View < TV/VCR Section >

Junction-B CB A Bottom View < TV/VCR Section >

BT5200F01023-C

ILTER CBA

Ref No. Po si ti o n

CONNECTORS CN401 CN402 CN403 CN404

TEST POI NTS

TP401 TP402 B-1

Filter CBA Bottom View < DVD Section >

C-2 A-2 C-1 B-1

A-1

1-11-53

1-11-54

BTD500F01022-B

WAVEFORMS < TV/VCR Section >

WAVEFORM NOTES

INPUT: NTSC COLOR BAR SIGNAL OTHER CONTROLS: CENTER POSITION VOLTAGES SHOWN ARE RANGE OF OSCILLOSCOPE SETTING

2 V 5 ms

WF1 MAIN 2/4 SCHEMATIC DIAGRAM TP1401 RF-SW

0.2 V 0.1 µs

WF2 MAIN 2/4 SCHEMATIC DIAGRAM IC1401 PIN 61

0.5 V 20 µs

WF5 MAIN 2/4 SCHEMATIC DIAGRAM TP1402 V-OUT

0.2 V 5 V 5 ms

Upper: WF6 Lower: WF1 MAIN 2/4 SCHEMATIC DIAGRAM TP1403 ENV

2 V

WF9 MAIN 3/4 SCHEMATIC DIAGRAM IC1301 PIN 20

1 V 20 µs

WF10 MAIN 3/4 SCHEMATIC DIAGRAM IC1301 PIN 11

5 ms

20 V 20 µs

WF13 CRT SCHEMATIC DIAGRAM Q501 COLLECTOR

20 V 20 µs

WF14 CRT SCHEMATIC DIAGRAM Q502 COLLECTOR

1 V 5 ms

WF17 MAIN 1/4 SCHEMATIC DIAGRAM IC1201 PIN 59

1 V 10 ms

WF3 MAIN 1/4 SCHEMATIC DIAGRAM TP1201 CTL-AMP-OUT

0.25 V 20 µs

WF4 MAIN 2/4 SCHEMATIC DIAGRAM IC1401 PIN 42

0.5 V 0.5 ms

WF7 MAIN 2/4 SCHEMATIC DIAGRAM TP1802 NA-IN-YCA

0.5 V

WF8 MAIN 2/4 SCHEMATIC DIAGRAM IC1401 PIN 7

0.5 ms

20 µs200 V

WF11 H.V. SCHEMATIC DIAGRAM Q571 COLLECTOR

10 V 5 ms

WF12 H.V. SCHEMATIC DIAGRAM CN571 PIN 5

20 V 20 µs

WF15 CRT SCHEMATIC DIAGRAM Q503 COLLECTOR

1 V

WF16 MAIN 1/4 SCHEMATIC DIAGRAM IC1201 PIN 58

20 µs

TD500TWF1-12-1 1-12-2

WAVEFORMS < DVD Section >

Pin 14 of CN2402

WF18

DVD-Y

Pin 16 of CN2402

WF19

0.2V 20usec

WF22

DVD-AUDIO(R)

WF23

Pin 7 of CN2402

Pin 11 of CN2402

NOTE:

Input CD: 1kHz PLAY (WF21~WF23) DVD: POWER ON (STOP) MODE (WF18~WF20)

1V 0.5msec

DVD-VIDEO

Pin 18 of CN2402

WF20

DVD-C

WF21

Pin 5 of CN2402

0.5V 20usec

0.2V 20usec

SPDIF

1V 0.2usec

DVD-AUDIO(L)

1V 0.5msec

1-12-3

1-12-4

TD601DWF

WIRING DIAGRAM <TV/VCR Section>

WIRING DIAGRAM FOR SECTION 2 (DECK MECHANISM)

CAPSTAN MOTOR

LOADING MOTOR

PG SENSOR

DRUM MOTOR

Hi-FiAUDIO(L) HEAD

Hi-FiAUDIO(R) HEAD

VIDEO (R)-2 HEAD

VIDEO (L)-2 HEAD

VIDEO (L)-1 HEAD

VIDEO (R)-1 HEAD

M

CYLINDER ASSEMBLY

AUDIO ERASE HEAD

AUDIO HEAD

CONTROL HEAD

AC HEAD ASSEMBLY

FE HEAD

FULL ERASE HEAD

SENSOR CBA (END-SENSOR) BHB300F01011-A,B

CL1201

1

C-F/R

2

AL+12V

3

D/L+12V

4

P-ON+5V(3)

5

FG-GND

6

C-FG

7

C-CONT

8

M-GND

9

D-FG

10

LD-CONT

11

D-CONT

12

D-PG

CL1401 Hi-Fi-A(L)

1

Hi-Fi-COM

2

Hi-Fi-A(R)

3

V(R)-2

4

V-COM

5

V(L)-2

6

V(L)-1

7

V-COM

8

V(R)-1

9

CL1402 AE-H1 AE-H/FE-H2

3

A-COM

4

A-PB/REC CTL(+)

5

CTL(-)6

CL1403

1

FE-H

2

FE-H GND

SENSOR CBA (ST-SENSOR) BHB300F01011-A,B

ANODE

CRT

GND

CL501A

1

HEATER

2

GND

3

+180V

L551 D.Y.

HD

VD

CN571 1

2 3 4

5

CRT CBA BT5200F01023-B

CN501

GND

CL501B

HEATER

2

1

T571 FBT

H.V. CBA BT5200F01023-A

FOCUS

+180V 3

CL502A

+B +B GND DEF+B GND GND

SCREEN

CL504B

GND BLUE

GREEN

RED

CL503A

P-SAFETY1 FBP-IN H-DRIVE V-RAMP-NF GND ACL/ABL V-DRIVE

1 2 3 4 5 6

SP1801 SPEAKER R-CH

JUNCTION A CBA BT5200F01023-D

CL504A CN504 1

1

2

2 3

3 4

4

CL503B

1

2

3

4

5

6

7

(NO CONNECTION) CN1303 IS USED FOR

ADJUSTMENT AT FACTORY

JUNCTION B CBA BT5200F01023-C

CL502B CN502 1 2

3 4 5 6

CL1802

CN503

1 2 3 4 5 6

CN1802 SP-R1 SP-GND

2

CN1301

1 2

3 4

1 2 3 4 5 6 7

GND

1 2

BLUE

GREEN

3

RED

4

CN1302

1

P-SAFETY1

2

FBP-IN

3

H-DRIVE

4

V-RAMP-NF

5

GND

6

ACL/ABL

7

V-DRIVE

CN1303 INT.MONITOR

1

I2C-OPEN

2 3

GND SDA

4

SCL

5

CN1804

1

GND

2

GND

3

AL+33V

4

P-ON+9V(1)

5

SAFETY

6

P-ON+9V(2)

7

NU

8

AL+9V

9

GND

10

AC-DOWN

11

GND

12

GND

13

DVD-C

14

DVD-Y

15

GND

16

AL+12V

17

GND

18

GND

19

P-ON+5V(4)

1

P-SAFETY2

2

GND

3

A-OUT(L)

4

GND

5

A-OUT(R)

6

NU

7

DVD-MUTE

8

JACK-MUTE

9

NU

10

GND

11

SDATA

12

SCLK

13

CS

14

GND

15

REMOTE

16

DVD-MAIN-PWR

17

P-ON-H

18

P-SAFETY3

19

DVD-H

5

KEY2

6

KEY1

7

VOLUME

8

GND

9

A-OUT(L)

10

A-OUT(R)

11

SP-L

MAIN CBA BTD500F01012

CN2804CN1803

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19

CN2803

1

2

3

4

5

6

7

8

9 10 11 12 13 14 15 16 17 18 19

CN2802CN1805

5

POWER SUPPLY & AV CBA

6

BTD500F01022-A

7

8

9 10 11

CN2601

1

2

CN2801 SP-L SP-GND

CN2401 GND SDATA SCLK CS REMOTE POWCON DVD-ON+3.3V DVD-ON+3.3V DVD-ON+3.3V EV+9V EV+9V GND GND GND GND DVD-ON+5V DVD-ON+1.8V DVD-ON+1.8V

CN2402 EV+2.5V EV+2.5V EV+3.3V GND DVD-AUDIO(L) GND DVD-AUDIO(R) GND DVD-ON+5V GND SPDIF GND DVD-MUTE DVD-Y GND DVD-VIDEO GND DVD-C

1 2

1 2 3 4 5 6 7 8

TO CN401

9 10 11 12 13 14 15 16 17 18

1

2

3

4

5

6

7

8

9

TO CN402

10 11 12 13 14 15 16 17 18

+B +B GND DEF+B GND GND

CL2801

CN2602

SP2801 SPEAKER L-CH

CONTINUE WIRING DIAGRAM (DVD SECTION)

W2601

1 2 3 4 5 6

1-13-1 TD500WIT1-13-2

1 MONI0

(NO CONNECTION)

TRAY-OUT

SW CBA

CN201

2 MONI2

3 JITTER

LOADING MOTOR

SPINDLE

MOTOR

WIRING DIAGRAM<DVD Section>

CN401 GND SDATA SCLK CS REMOTE

FILTER CBA (BTD500F01022-B)

CN403

225

126

W1001

REMOTE

P-ON+1.8V 261

P-ON+1.8V 252

EV+2.5V 234

DVD-ON+5V 225

DVD-ON+5V 216

GND 207

GND 198

GND 189

GND 1710

GND 1611

GND 1512

GND 1413

EV+9V 1314

EV+9V 1215

EV+3.3V 1116

DVD-ON+3.3V 1017

DVD-ON+3.3V 918

DVD-ON+3.3V 819

PWRCON 720

CS 621

EV+2.5V 243

CN501

SDATA 522

NU

NU 423

SCLK 324

W1601

DVD-Y 141

DVD-VIDEO 123

GND 114

GND 132

CN404

DVD-AUDIO(L) 69

A-MUTE(R) 510

GND 87

GND 96

CN701

A-MUTE(L) 78

DVD-C 105

DVD-AUDIO(R) 411

SPDIF 114

A-MUTE 312

DVD-ON+5V 213

DVD MAIN CBA UNIT

CN302

CN401

123456789

4 GND

GND

1 LM(+)

2 LM(-)

3 TRAY-IN

4 TRAY-OUT

5

6 SP(-)

7 SP(+)

CN3001

M

TRAY-IN

10

11

P-ON+3.3V(D)

8 SL(-)

9 SL(+)

10 FG-IN

11

FG SENSOR

1 /FERS

2 GND

3 RDY-HIF

4 SCL

5 SDA

6 BUSCLR

(NO CONNECTION)

1 GND

2 VREF

3 P-ON+5V

4 F

5 E

7 SENSJ

6 A

CN101

GND(DVD-PD)

7 D

8 NU

9 B

10 C

11 PD-MONI

12 DVD-LD

13 GND(LD)

14

15 TS(+)

FS

TS

18 TS(-)

16 FS(-)

17 FS(+)

CD-LD

GND(CD-PD)

192021

CD/DVD

POWCON DVD-ON+3.3V DVD-ON+3.3V DVD-ON+3.3V EV+9V EV+9V GND GND GND GND DVD-ON+5V DVD-ON+1.8V DVD-ON+1.8V

CN402 EV+2.5V EV+2.5V EV+3.3V GND DVD-AUDIO(L) GND DVD-AUDIO(R) GND DVD-ON+5V GND SPDIF GND DVD-MUTE DVD-Y GND DVD-VIDEO GND DVD-C

FG CBA

M

1 2 3 4 5 6 7 8

TO CN2401

9 10 11 12 13 14 15 16 17 18

1

2

3

4

5

6

7

8

9

TO CN2402

10 11 12 13 14 15 16 17 18

CONTINUE WIRING DIAGRAM (TV/VCR SECTION)

SLIDE

MOTOR

M

RELAY CBA

1-13-3

DVD MECHA

DETECTOR

PICK UP UNIT

1-13-4

TD500WID

SYSTEM CONTROL TIMING CHARTS

[ VCR Section ]

Mode SW : LD-SW

LD-SW Position detection

A/D Input voltage Limit

(Calculated voltage)

3.76V~4.50V (4.12V)

4.51V~5.00V (5.00V)

0.00V~0.25V (0.00V)

1.06V~1.50V (1.21V)

0.66V~1.05V (0.91V)

1.99V~2.60V (2.17V)

1.51V~1.98V (1.80V)

3.20V~3.75V (3.40V)

0.26V~0.65V (0.44V)

4.51V~5.00V (5.00V)

2.61V~3.19V (2.97V)

Symbol

EJ

CL

SB

TL

FB

SF

AU

AL

SS

GC

RS

Note:

Note :

EJ RS: Loading FWD (LM-FWD “H”, LM-REV “L”) RS EJ: Loading REV (LM-FWD “L”, LM-REV “H”)

Stop (A) = Loading Stop (B) = Unloading

Note :

Symbol Loading Status

EJ Eject CL Eject ~ REW Reel SB REW Reel ~ Stop(B)

TL Stop(B) ~ Brake Cancel FB Brake Cancel SF ~ Stop(A) AU Stop(A) ~ Play / REC

AL Play / REC ~ Still / Slow SS Still / Slow ~ Capstan Reversal GC Capstan Reversal ~ RS (REW Search) RS RS (REW Search)

1-14-1 TD601TI

18 RF-SW

F-AD (Internal Signal)

The first rise of RF-SW after a rise in F-AD signal

C-DRIVE

PB CTL

66 C-F/R

AT

"L" "L"

"H"

Acceleration Detection (T1)

"Z"

ST

"H"

BL

Stop detection (T2)

Slow Tracking Value

Reversal Limit Value

16 H-A-SW

15 ROTA

STILL FRAME ADVANCE STILL

Fig. 1

1-14-2 TD601TI

18 RF-SW

F-AD (Internal Signal)

The first rise of RF-SW after a rise in F-AD signal

AT

C-DRIVE

PB CTL

66 C-F/R

"H"

"L" "L"

Acceleration Detection (T1)

"Z"

ST

"H"

BL

Stop detection (T2)

Slow Tracking Value

Reversal Limit Value

16 H-A-SW

15 ROTA

STILL STILL

FRAME ADVANCE

Fig. 2

1-14-3 TD601TI

LM-FWD "M"

/REV

82

EJ

AL

RS

SF

AU

TL

FB

SS

SB

44 D-REC-H

DISPLAY

20 D-PB-L

65 A-MUTE-H

C-DRIVE

66 C-F/R

DRUM

ROTATION

31 P-ON

1 LD-SW

CL/GC

PIN NO.

1. EJECT (POWER OFF) -> CASSETTE IN (POWER ON) -> STOP(B) -> STOP(A) -> PLAY -> RS -> FS -> PLAY -> STILL -> PLAY -> STOP(A)

-OFF

STOP

PLAY RS

POWER

0.8S

1.5S(2H)

2.5S(4H)0.2S

0.2S

0.3S

ON

0.2S

"Z"

0.2S

1.2S

0.4S

FB

AU AU

AU

CLEJ SB TL SB

TL

EJECT

CASS.LOAD

LD-FWD

0.2S

LD-REV

0.7S

LD-FWD

0.2S LD-REV

0.2S LD-FWD

0.5S

LD-REV

STOP(A)

LD-FWD

PLAY

ST-S,/ END-S "OFF"

PLAY

SS

LD-FWD

GC

0.4S

LD-FWD

RS AL AL AL SFSS

0.3S

FS

1.0S

STILL(SLOW)PLAY STOPPLAY

Refer to STILL/

SLOW TIMING

CHART Fig. 1, 2.

0.5S

0.2S

1.2S

0.4S

0.3S

GC AL

AL AU

RS

SS

LD-REV

AU AUSF FB SF SF ALAL

0.2S

LD-FWD

FS

PLAY

LD-FWD

STILL(SLOW)

LD-REV

0.2S

LD-FWD

PLAY

LD-REV

STOP(A)

REW

FF

PLAY

PAUSE (SLOW)

PLAY

STOP /EJECT

Fig. 3

1-14-4 TD601TI

LM-FWD "M"

/REV

82

EJ

AL

RS

SF

AU

TL

FB

SS

SB

44 D-REC-H

DISPLAY

20 D-PB-L

65 A-MUTE-H

C-DRIVE

66 C-F/R

DRUM

ROTATION

31 P-ON

1 LD-SW

CL/GC

PIN NO.

2. STOP(A) -> FF -> STOP(A) -> REW -> STOP(A) -> REC -> PAUSE -> PAUSE or REC -> STOP(A) -> EJECT

STOP

STOPFF

REW STOP

REC

RECREC PAUSE STOP

0.1S

1.2S

ON

"Z"

0.2S

0.4S

0.2S

0.4S

0.2S

FB

AU AU

AU FB FB AU

SS

GC

AL

SS

GC AL AU

SF FBTL AL

STOP(A)

LD-REV

0.2S LD-FWD

FF

LD-REV

1.0S

SF SF

LD-FWD

0.5S

LD-REV

STOP(A)

TL

LD-REV

0.2S LD-FWD

SF SF SF AUAL ALFBSF

REW

LD-REV

1.0S

LD-FWD

0.5S

LD-REV

STOP(A)

LD-FWD

REC

GC

LD-FWD

2.5S Short REV

SS

LD-REV

AU AU

0.2S

LD-FWD

REC PAUSE

REC

GCRS AL AL SF FB TL SB CL EJRS SS

LD-FWD

1.5S

LD-REV

FF

STOP /EJECT

REW

STOP /EJECT

REC

PAUSE

REC or PAUSE

STOP /EJECT

0.2S

LD-FWD

0.4S

0.1S

0.5S

LD-REV

STOP(A)

LD-REV

0.2S

LD-REV

0.5S

0.2S

0.5S

CASS. UNLD

EJECT

STOP /EJECT

ST-S,/ END-S "ON"

Fig. 4

1-14-5 TD601TI

[ DVD Section ]

Tray close ~ Play / Play ~ Tray open

Eject key on

LSW2

LSW1

LM-

LM+

0V

+5V

+6V

0V

+6V

0V

Tray close Tray open

Disc Rotation

Eject key on

Play

4.4s

I/o (TL123)

SP ( TP122 )

Tv ( TL122 )

+2V

0V

+5V

0V

+2V

0V

1.2s

2.0s

1.7s

700ms

1-14-6 TD601TI

IC PIN FUNCTION DESCRIPTIONS

IC1201 ( SERVO / SYSTEM CONTROL/TV/ OSD/TIMER IC )

“H” ≥ 4.5V, “L” ≤ 1.0V

IN/

No.

OUT

1 IN LD-SW Loading Switch Input

2 IN P-SAFETY 1

3 IN P-SAFETY 2

IN

4

5 IN KEY0 Key 0 Input

6 IN KEY1 Key 1 Input

7 IN END-SENS End-Sensor

8 IN KEY2 Key 2 Input

9 IN ST-SENS Start-Sensor

10 IN V-ENV Video Envelope Input

11 OUT VOL-CONT

12 - NU Not Used

IN/

13

OUT

14 IN REMOTE Remote Signal Input

15 OUT ROTA

16 OUT V-H-SW

17 IN ENV-DET

18 OUT RF-SW

OUT

19

OUT

20

21 OUT REC-LED

22 IN NORMAL-H Audio Mode Input Signal

23 OUT ACL-CONT ACL Control Signal

24 - NU Not Used

25 OUT REM-OUT DVD REMOTE SIGNAL

26 OUT TV/VCR-LED

Signal Name

Power Supply Failure Detection 1

Power Supply Failure Detection 2

ST/SAP-IN

D-V SYNC Artificial V-Sync Output

HiFi-SW

D-PB-L

Tuner Stereo/Sap Detector Signal Input

Output Volume Control Signal

Color Phase Rotary Changeover SIgnal

Video Head Amp Switching Pulse

Envelope Comparator Signal

Video Head Switching Pulse

HiFi Audio Head Switching Pulse

Playback Instruction Signal (Playback=”L”)

Recording LED Control Signal

TV/VCR Mode LED Control Signal

Function

IN/

No.

OUT

IN/

27

OUT

IN/

28

OUT

29 OUT EXT-H

IN/

30

OUT

31 OUT P-ON-H Power On Signal at High

32 OUT SPL-PLAY

33 IN

34 IN RESET

35 IN XC-IN Sub Clock 32 kHz

36 OUT XC-OUT Sub Clock 32 kHz

37 - TIMER+5V Vcc

38 IN X-IN Main Clock Input

39 OUT X-OUT Main Clock Output

40 - GND GND

41 OUT SPOT-KILL Counter-measure for Spot

42 IN

43 IN CLKSEL Clock Select (GND)

44 OUT D-REC-H Delayed Record Signal

45 IN I2C-OPEN

46 - GND GND

47 - NU Not Used

48 OUT DVD-H DVD at High

49 - GND OSD GND

50 - CS Chip Select

51 OUT SCLK

IN/

52

OUT

53 - +5V OSD Vcc

54 - HLF HLF

55 IN V-HOLD VHOLD

56 IN C-VIDEO Video Signal Input

Signal Name

REC/EE/PB YCA IC Mode Output

TAPESPEED

RENTAL

RECSAFETY

DVD-MAINPWR

SDATA Serial Data

Tape Speed Control Output

External Input or Playback SIgnal Output

Rental Position Control Signal

Special Playback Control Signal

Record Protection Tab Detection

System Reset Signal (Reset=”L”)

Power On Signal to High for DVD

White Balance Adjust Mode Judgment

HiFi Communication Clock

Function

1-15-1 TD500PIN

Pin No.

IN/

OUT

Signal Name

Function

Pin No.

IN/

OUT

Signal Name

Function

57 - GND GND

58 IN H-SYNC H-SYNC Input

59 IN V-SYNC V-SYNC Input

60 OUT OSD-BLK Output for Picture Cut off

61 - NU Not Used

62 OUT OSD-B Blue Output

63 OUT OSD-G Green Output

64 OUT OSD-R Red Output

65 OUT A-MUTE-H Audio Mute Output

66 OUT C-F/R

67 OUT JACK-MUTE

IN/

68

69

70

71 OUT SCL

72

73 OUT DVD-MUTE DVD Audio Mute Signal

74 IN C-SYNC C-Sync Input

HiFi-DATA HiFi Data Input/Output

OUT

HiFi-CS HiFi IC Chip Select

OUT

HiFi-CLK HiFi Clock Output

IN/

SDA

OUT

Capstan Motor FWD/REV Control Signal

Earphone Jack Audio Mute Output

E2PROM/CHROMA IC Tuner Communication Clock

E2PROM/CHROMA IC Tuner Communication Data

87 IN C-FG

88 - GND GND (AMP)

89 IN D-FG

90 IN D-PG

91 - NU Not Used

92 IN

93 C

94

95

96 - AMPC AMPC

97 OUT

98 - P-ON+5V Power Supply for AMP

99 - AL+5V

100 IN P-SAFETY 3

AMP VREF IN

IN/

CTL (-) CTL (-)

OUT

IN/

CTL (+) CTL (+)

OUT

CTL AMP OUT

Capstan Motor Rotation Detection Pulse

Drum Motor Rotation Detection Pulse

Drum Motor Pulse Generator

Standard Voltage Input

Ext. Capacitor Connection Port for Analog Amp

Control Amp Output

A/D, D/A Standard Voltage

Power Supply Failure Detection 3

75 - NU Not Used

76 OUT C-CONT

77 OUT D-CONT

78 - NU Not Used

79 - NU Not Used

80 IN T-REEL

81 - NU Not Used

82 OUT LD-CONT

83 - NU Not Used

84 OUT P-DOWN-L

85 IN

86 - NU Not Used

COMBFILTER

Capstan Motor Control Signal

Drum Motor Control Signal

Take Up Reel Rotation Signal

Loading Motor Control Signal

Power Voltage Down Detector Signal

On (with COMB-Filter), GND (without COMBFilter)

1-15-2 TD500PIN

LEAD IDENTIFICATIONS

2SK2662 2SK3407

S D G

LA78040A AN5522

17

KIA7805API KA7805A AN7805F

TT2140LS-YB11 2SD2627LS-FEC-YB11

B C E

MID-32A22

C

E

KRA103M 2SC1815-GR(TPE2) 2SC3331(T,U) 2SC2120-(O,Y)(TPE2) KTA1266(GR) KTC3207 KTC3205(Y) 2SC2236-Y-TPE6,C

E C B

BU4053B NJU4053BD

LTV-817(B,C)-F PC817X6

AC

TC74HC4053AP

8

NJM4558D

8 5

1 4

E C B

2SD400(F)

2SC1627Y-TPE2 2SA950(Y,O) KTA1271(Y) 2SC2482 TPE6 2SC3468(E,D)-AE 2SC3400 2SA1175(F) KTA1267(GR) KTC3198(GR) KRC103M

5

E C B

BN1F4M-T KTC3199(GR) 2SC2785(J,H,F) 2SA1015-GR(TPE2) BA1F4M-T

M37760MCH4D8GP LA71091M

80

81

PQ018EF01SZ

1234

51

50

IN G OUT

BR24C02F-W BR24C02F AT24C02N-10SC M24C02-MN6 CAT24WC02JI

8

1

5

4

KE

41

20

1

40

49

64

21

80

61

AN17805A

112

72655M

LA

60

1

100

4

M612106FP-R61 M612106FP-R62*

48

1

33

16

1

PQ1CG21HFZ KIA431-AT

32

17

31

30

RAK

Note:

A: Anode K: Cathode E: Emitter C: Collector B: Base R: Reference S: Source G: Gate D: Drain

1-16-1 TD500LE

DECK MECHANISM

SECTION

19" COLOR TV/DVD/VCR

6719DC/SSC719C/EWC19T2

Sec. 2: Deck Mechanism Section

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

TABLE OF CONTENTS

Standard Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1-1

Service Fixtures and Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2-1

Mechanical Alignment Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3-1

Disassembly / Assembly Procedures of Deck Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4-1

Alignment Procedures of Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4-9

STANDARD MAINTENANCE

Service Schedule of Components

H: Hours : Check I : Change

Deck Periodic Service Schedule

Ref.No. Part Name 1,000 H 2,000 H 3,000 H 4,000 H

B2 Cylinder Assembly

B3

B8 Pulley Assembly

B27

B31

B573,B574 Reel S, Reel T

B37

B52

*B73 FE Head

B133

B410

B414 M Brake S Assembly II

B416

Loading Motor Assembly

Tension Lever Sub Assembly

AC Head Assembly

Capstan Motor

Cap Belt

Idler Assembly

Pinch Arm (A) Assembly

M Brake T Assembly

II

I

II

I

II

I

II

B525

Notes:

1.Clean all parts for the tape transport (Upper Drum with Video Head / Pinch Roller / Audio Control Head / Full Erase Head) using 90% lsopropyl Alcohol.

2.After cleaning the parts, do all DECK ADJUSTMENTS.

3.For the reference numbers listed above, refer to Deck Exploded Views. * B73 ------ Recording Model only

LDG Belt

II

2-1-1 U25MEN

Cleaning

Cleaning of Video Head

Clean the head with a head cleaning stick or chamois cloth.

Procedure

1.Remove the top cabinet.

2.Put on a glove (thin type) to avoid touching the upper and lower drum with your bare hand.

3.Put a few drops of 90% Isopropyl alcohol on the head cleaning stick or on the chamois cloth and, by slightly pressing it against the head tip, turn the upper drum to the right and to the left.

Notes:

1.The video head surface is made of very hard material, but since it is very thin, avoid cleaning it vertically.

2.Wait for the cleaned part to dry thoroughly before operating the unit.

3.Do not reuse a stained head cleaning stick or a stained chamois cloth.

Cleaning of Audio Control Head

Clean the head with a cotton swab.

Procedure

1.Remove the top cabinet.

2.Dip the cotton swab in 90% isopropyl alcohol and clean the audio control head. Be careful not to damage the upper drum and other tape running parts.

Notes:

1.Avoid cleaning the audio control head vertically.

2.Wait for the cleaned part to dry thoroughly before operating the unit or damage may occur.

A/C Head

Upper Cylinder

Do Not !

Video Head

Cleaning Stick

2-1-2 U25MEN

SERVICE FIXTURE AND TOOLS

J-1-1, J-1-2

J-3

J-2

J-4

J-5

Ref. No. Name Part No. Adjustment

J-1-1 Alignment Tape FL8A Head Adjustment of Audio Control Head

J-1-2 Alignment Tape FL8N

(2Head only) FL8NW (4Head only)

J-2 Guide Roller Adj.Screwdriver Available

Locally

J-3 Mirror Available

Locally

J-4 Azimuth Adj.Screwdriver + Available

Locally

J-5 X Value Adj.Screwdriver - Available

Locally

2-2-1 U25NFIX

Azimuth and X Value Adjustment of Audio Control Head / Adjustment of Envelope Waveform

Guide Roller

Tape Transportation Check

A/C Head Height

X Value

MECHANICAL ALIGNMENT PROCEDURES

Explanation of alignment for the tape to correctly run starts on the next page. Refer to the information below on this page if a tape gets stuck, for example, in the mechanism due to some electrical trouble of the unit.

Service Information

A. Method for Manual Tape Loading/Unloading

To load a cassette tape manually:

1. Disconnect the AC plug.

2. Remove the Top Case and Front Assembly.

3. Insert a cassette tape. Though the tape will not be automatically loaded, make sure that the cassette tape is all the way in at the inlet of the Cassette Holder. To confirm this, lightly push the cassette tape further in and see if the tape comes back out, by a spring motion, just as much as you have pushed in.

4. Turn the LDG Belt in the appropriate direction shown in Fig. M1 for a minute or two to complete this task.

To unload a cassette tape manually:

1. Disconnect the AC plug.

2. Remove the Top Case and Front Assembly.

3. Make sure that the Moving guide preparations are in the Eject Position.

4. Turn the LDG Belt in the appropriate direction shown in Fig. M1 until the Moving guide preparations come to the Eject Position. Stop turning when the preparations begin clicking or can not be moved further. However, the tape will be left wound around the cylinder.

5. Turn the LDG Belt in the appropriate direction continuously, and the cassette tape will be ejected. Allow a minute or two to complete this task.

B. Method to place the Cassette Holder in the tape-

loaded position without a cassette tape

1. Disconnect the AC Plug.

2. Remove the Top Case and Front Assembly.

3. Turn the LDG Belt in the appropriate direction shown in Fig. M1. Release the locking tabs shown in Fig. M1 and continue turning the LDG Belt until the Cassette Holder comes to the tape-loaded position. Allow a minute or two to complete this task.

Top View

Moving guide T preparation (Eject Position)

Moving guide S preparation (Eject Position)

Push the tape to load it.

Push the locking tab gently to unlock when loading without a cassette.

UNLOAD /EJECT

LOAD

Side View

LDG Belt

Fig. M1

Bottom View

LDG Belt (B)

UNLOAD /EJECT

Cam Gear

Fig. M2

2-3-1 TD601MA

1.Tape Interchangeability Alignment

Note: To do these alignment procedures, make sure that the Tracking Control Circuit is set to the center position every time a tape is loaded or unloaded. (Refer to page 2-3-4, procedure 1-C, step 2.)

Equipment required:

Dual Trace Oscilloscope VHS Alignment Tape (FL8NW) Guide Roller Adj. Screwdriver X-Value Adj. Screwdriver

Note: Before starting this Mechanical Alignment, do all Electrical Adjustment procedures.

Flowchart of Alignment for tape traveling

Loading (Use a blank tape.)

Adjust the height of the Guide Rollers (Supply side and take-up side). (Use a blank tape.) (pg. 2-3-3)

1-A

Check to see that the tape is not creasing and that there is no slack on the supply and take-up side Guide Rollers. (Use a blank tape.)

Adjust the X Value for maximum envelope. (pg. 2-3-3) (Use Alignment Tape.)

Adjust the envelope. (pg. 2-3-4)

Check the envelope.

OK

Adjust the Audio Section. (Azimuth Alignment) (pg. 2-3-4)

Check the audio output.

OK

1-A

1-B

1-C

1-D

Not good

Do the final tape-traveling test to see that the tape runs normally in play mode without creasing or slacking.

OK

Completion

1-A

Check the following:

1. X Value (pg. 2-3-3)

2. Envelope (pg. 2-3-4)

OK

1-B, 1-C

Not good

2-3-2 TD601MA

Adjust the X value and envelope.

1-B, 1-C

1-A. Preliminary/Final Checking and

Alignment of Tape Path

Purpose:

To make sure that the tape path is well stabilized.

Symptom of Misalignment:

If the tape path is unstable, the tape will be damaged.

Note: Do not use an Alignment Tape for this procedure. If the unit is not correctly aligned, the tape may be damaged.

1. Playback a blank cassette tape and check to see that the tape runs without creasing at Guide Rollers [2] and [3], and at points A and B on the lead surface. (Refer to Fig M3 and M4.)

2. If creasing is apparent, align the height of the guide rollers by turning the top of Guide Rollers [2] and [3] with a Guide Roller Adj. Screwdriver. (Refer to Fig. M3 and M5.)

Guide Roller [2]

A

Take-up Guide Post [4]

Lead Surface of Cylinder

Correct

Guide Roller

Tape

Guide Roller [3]

B

Tape

Incorrect

AC Head

Fig. M3

Fig. M4

3. Check to see that the tape runs without creasing at Take-up Guide Post [4] or without snaking between Guide Roller [3] and AC Head. (Fig. M3 and M5)

4. If creasing or snaking is apparent, adjust the Tilt Adj. Screw of the AC Head. (Fig. M6)

Azimuth Adj. Screw

AC Head

X-Value Adj. Screwdriver

Tilt Adj. Screw

Fig. M6

1-B. X Value Alignment

Purpose:

To align the Horizontal Position of the Audio/Control/ Erase Head.

Symptom of Misalignment:

If the Horizontal Position of the Audio/Control/Erase Head is not properly aligned, maximum envelope cannot be obtained at the Neutral position of the Tracking Control Circuit.

1. Connect the oscilloscope to TP1403 (ENV) and TP1201 (CTL-AMP-OUT) on the Main CBA. Use TP1401 (RF-SW) as a trigger.

2. Playback the Gray Scale of the Alignment Tape (FL8NW) and confirm that the PB FM signal is present.

3. Set the Tracking Control Circuit to the center position by pressing CH UP button then “ PLAY ” button on the unit. (Refer to note on bottom of page 2-3-4.)

4. Use the X-Value Adj. Screwdriver so that the PB FM signal at TP1403 (ENV) is maximum. (Fig. M6)

5. Press CH UP button on the unit until the CTL waveform has shifted by approx. +2msec. Make sure that the envelope is simply attenuated (shrinks in height) during this process so that you will know the envelope has been at its peak.

Tape

Take-up Guide Post

Fig. M5

2-3-3 TD601MA

6. Press CH DOWN button on the unit until the CTL waveform has shifted from its original position (not the position achieved in step 5, but the position of CTL waveform in step 4) by approximately -2msec. Make sure that the envelope is simply attenuated (shrinks in height) once CTL waveform passes its original position and is further brought in the minus direction.

7. Set the Tracking Control Circuit to the center position by pressing CH UP button and then “ PLAY ” button on the unit.

1-C. Checking/Adjustment of Envelope

Waveform

Purpose:

To achieve a satisfactory picture and precise tracking.

Symptom of Misalignment:

If the envelope output is poor, noise will appear in the picture. The tracking will then lose precision and the playback picture will be distorted by any slight variation of the Tracking Control Circuit.

1. Connect the oscilloscope to TP1403 (ENV) on the Main CBA. Use TP1401 (RF-SW) as a trigger.

2. Playback the Gray Scale on the Alignment Tape (FL8NW). Set the Tracking Control Circuit to the center position by pressing CH UP button and then “ PLAY ” button on the unit. Adjust the height of Guide Rollers [2] and [3] (Fig. M3, Page 2-3-3) watching the oscilloscope display so that the envelope becomes as flat as possible. To do this adjustment, turn the top of the Guide Roller with the Guide Roller Adj. Screwdriver.

3. If the envelope is as shown in Fig. M7, adjust the height of Guide Roller [2] (Refer to Fig. M3) so that the waveform looks like the one shown in Fig. M9.

4. If the envelope is as shown in Fig. M8, adjust the height of Guide Roller [3] (Refer to Fig. M3) so that the waveform looks like the one shown in Fig. M9.

5. When Guide Rollers [2] and [3] (Refer to Fig.M3) are aligned properly, there is no envelope drop either at the beginning or end of track as shown in Fig. M9.

Note: Upon completion of the adjustment of Guide Rollers [2] and [3] (Refer to Fig. M3), check the X Value by pushing the CH UP or DOWN buttons alternately, to check the symmetry of the envelope. Check the number of pushes to ensure center position. The number of pushes CH UP button to achieve 1/2 level of envelope should match the number of pushes CH DOWN button from center. If required, redo the “X Value Alignment.”

1-D. Azimuth Alignment of Audio/Control/

Erase Head

Purpose:

To correct the Azimuth alignment so that the Audio/ Control/Erase Head meets tape tracks properly.

Symptom of Misalignment:

If the position of the Audio/Control/Erase Head is not properly aligned, the Audio S/N Ratio or Frequency Response will be poor.

1. Connect the oscilloscope to the audio output jack on the rear side of the deck.

2. Playback the alignment tape (FL8NW) and confirm that the audio signal output level is 8kHz.

3. Adjust Azimuth Adj. Screw so that the output level on the AC Voltmeter or the waveform on the oscilloscope is at maximum. (Fig. M6)

Dropping envelope level at the beginning of track.

Fig. M7

Dropping envelope level at the end of track.

Fig. M8

Envelope is adjusted properly. (No envelope drop)

Fig. M9

2-3-4 TD601MA

DISASSEMBLY/ASSEMBLY PROCEDURES

OF DECK MECHANISM

Before following the procedures described below, be sure to remove the deck assembly from the cabinet. (Refer to CABINET DISASSEMBLY INSTRUCTIONS on page 1-7-1.) All the following procedures, including those for adjustment and replacement of parts, should be done in Eject mode; see the positions of [41] and [42] in Fig.DM1 on page 2-4-3. When reassembling, follow the steps in reverse order.

STEP /LOC.

START-

ING

No.

[1] [1] Guide Holder A T DM3 2(S-1)

[2] [1] Cassette Holder Assembly T DM4

[3] [2] Slider L T DM5 (S-2)

[4] [2] Slider R T DM5 (S-3)

[5] [4] Lock Lever T DM5 (S-4),*(P-1)

[6] [2] C Plate T DM5

[7] [7] Cylinder Assembly T DM1,DM6 Desolder, 3(S-5)

[8] [8] Loading Motor Assembly T DM1,DM7

[9] [9] AC Head Assembly T DM1,DM7 (S-7)

[10] [2] Tape Guide Assembly T DM1,DM8 *(P-2)

[11] [10] Door Opener B T DM1,DM8 *(L-1),*(L-2)

[12] [11] Pinch Arm (B) T DM1,DM8 *(P-3)

[13] [12] Pinch Arm (A) Assembly T DM1,DM8

[14] [14] FE Head T DM1,DM9 (S-8)

[15] [15] Prism T DM1,DM9 (S-9)

[16] [2] Slider Shaft T DM10 (S-10),*(L-3)

[17] [16] C Drive Lever L T DM10

[18] [16] C Drive Lever R T DM10

[19] [7],[10] Capstan Motor B DM2,DM11 3(S-11), Cap Belt

[20] [20] Clutch Assembly B DM2,DM12 (C-1)

[21] [20] FF Arm B DM2,DM12

[22] [22] Cam Holder F B DM2,DM13 (C-2)

[23] [23] Cam Gear (B) B DM2,DM13 (C-3),*(P-4)

[24] [24] Mode Gear B DM2,DM14 (C-4)

[25]

[26] [22] Worm Holder B DM2,DM14 (S-12)

[27] [26] Pulley Assembly B DM2,DM14

[28] [25],[26] Cam Gear (A) B DM2,DM14

[29] [25] Idler Assembly B DM1,DM15 *(L-5)

[30] [25] BT Arm B DM2,DM15 *(P-5)

[31] [25]

[32] [31]

No.

[20],[23],

[24]

Mode Lever B DM2,DM14 (C-5), *(L-4)

Loading Arm S (B) Assembly

Loading Arm T (B) Assembly

PART

Fig. No.

B DM2,DM15

REMOVAL INSTALLATION

REMOVE/*UNHOOK/ UNLOCK/RELEASE/ UNPLUG/DESOLDER

Desolder, LDG Belt, 2(S-6)

ADJUSTMENT

CONDITION

(+)Refer to Alignment Sec.Pg.2-4-9

2-4-1 TD601DA

STEP /LOC.

START-

ING

No.

[33] [2],[25] M Brake T Assembly T DM1,DM16 *(P-6)

[34] [2],[25] M Brake S Assembly T DM1,DM16 *(P-7)

[35] [34]

[36] [35] T Lever Holder T DM1,DM16 *(L-6)

[37] [33] M Gear T DM1,DM16 (C-6)

[38] [2],[15] Sensor Gear T DM1,DM16 (C-7)

[39] [33] Reel T T DM1,DM16

[40] [35] Reel S T DM1,DM16

[41] [31],[35]

[42] [32]

[43] [19] TG Post Assembly T DM1,DM17 *(L-7)

[44] [19],[28] Rack Assembly R DM18

[45] [44] F Door Opener R DM18 *(P-8)

[46] [46] Cleaner Lever Assembly T DM1,DM6

[47] [46] CL Post T DM6 *(L-9) Type A

↓

(1)

No.

Tension Lever Sub Assembly

Moving Guide S Preparation

Moving Guide T Preparation

↓

(2)

PART

↓

(3)

Fig. No.

T DM1,DM16

T DM1,DM17

↓

(4)

↓

(5)

REMOVAL INSTALLATION

REMOVE/*UNHOOK/ UNLOCK/RELEASE/ UNPLUG/DESOLDER

(+)Refer to Alignment Sec.Pg.2-4-10

Type A

*(L-8) Type B

↓

(6)

ADJUSTMENT

CONDITION

↓

(7)

(1): Follow steps in sequence. When reassembling, follow the steps in reverse order.

These numbers are also used as identification (location) No. of parts in the figures.

(2): Indicates the part to start disassembling with in order to disassemble the part in column (1).

(3): Name of the part

(4): Location of the part: T=Top B=Bottom R=Right L=Left

(5): Figure Number

(6): Identification of parts to be removed, unhooked, unlocked, released, unplugged, unclamped, or desoldered.

P=Spring, W=Washer, C=Cut Washer, S=Screw, *=Unhook, Unlock, Release, Unplug, or Desolder

e.g., 2(L-2) = two Locking Tabs (L-2).

(7): Adjustment Information for Installation

(+):Refer to Deck Exploded Views for lubrication.

.

2-4-2 TD601DA

Top View

[14]

[35]

[7] [46] [8]

[42][41] [43][9]

[13]

[11]

[15]

[36]

[34]

Bottom View

[10] [12]

[33]

[29][40] [38] [37] [39]

Fig. DM1

[19]

[32]

[31]

[26]

[27]

[23]

[28]

[24]

[25]

[21] [30][20][22]

Fig. DM2

2-4-3 TD601DA

(S-1)

Pin C

Pin D

[2]

[1]

(S-1)

Fig. DM3

A

[7]

(S-2)

[3]

Type A

[6]

(S-3)

[46]

[47]

(L-9)

[4]

[5]

(P-1)

(S-4)

Fig. DM5

Type B

[46]

2

Pull up

Pin A

Slots B

First, while pushing the locking tab as shown in the right, slide and pull up the right side on [2] to release Pin A and Pin B from the slots A. Then, remove Pin C and Pin D on [2] from the slots B as shown.

Locking tab

1

Slide

Pin B

Slot A

View for A

Fig. DM4

Desolder from bottom

(S-5)

View for A

(L-8)

A

Lead with Blue Stripe

Fig. DM6

2-4-4 TD601DA

[9]

A

(S-7)

[8]

Desolder from bottom

[8]

[14]

(S-8)

(S-9)

[15]

(S-6)

(L-2)

[13]

LDG Belt

A

Lead with White Stripe

View for A

Adj. Screw

[11] (L-1)

[10]

Fig. DM7

(P-3)

[12]

(P-2)

[17]

(L-3)

Fig. DM9

After removing the Screw (S-10), while pressing the Locking Tab (L-3), remove [16].

[16]

[18]

Pin of [12]

View for A

Pin of [10]

[28]

(S-10)

Fig. DM10

Grooves of [28]

When reassembling [10] and [12], confirm that pin of [10] and pin of [12] are in the grooves of [28] as shown.

Fig. DM8

2-4-5 TD601DA

Cap Belt

[19]

Portions A on [21] must be set

A

(C-1)

in the slot on [20] as shown.

[20]

Portions A

[21]

Portions A View for A

Fig. DM12

(S-11)

Fig. DM11

2-4-6 TD601DA

[23]

(C-3)

(C-2)

[22]

(S-12)

[25]

(C-5)

Pin on bottom of [23]

(P-4)

[28]

When installing [23], install the spring (P-4) to [28] as shown in the left figure, and then install [23] while pressing the spring (P-4) to the direction of the arrow in the left figure and confirming that the position of the spring (P-4) is placed as shown in the left figure.

[27]

(L-4)

[28]

Position of Mode Lever when installed

Pin of [30]

Pin of [33]

[26]

(C-4)

[24]

Pin of [34]

Top View

[23]

Position of pin on [22]

Pin on [22]

[28]

Fig. DM13

Bottom View

[28]

Top View

[25]

Align [25] and [28] as shown.

First groove on [28]

First tooth on [44]

[28]

When reassembling [28], meet the first groove on [28] to the first tooth on [44] as shown.

Fig. DM14

2-4-7 TD601DA

[30]

Refer to the Alignment Section, Page 2-4-9.

(P-5)

[41]

[42]

[43]

(L-7)

[34]

(P-7)

turn

[36]

[29]

(L-6)

turn

[40]

[38]

(L-5)

[35]

(C-7)

[32]

(C-6)

[37]

[31]

Fig. DM15

[39]

(P-6)

[33]

(P-8)

[45]

Fig. DM17

[44]

Slide

Fig. DM18

turn

Fig. DM16

2-4-8 TD601DA

ALIGNMENT PROCEDURES OF MECHANISM

The following procedures describe how to align the individual gears and levers that make up the tape loading/unloading mechanism. Since information about the state of the mechanism is provided to the System Control Circuit only through the Mode Switch, it is essential that the correct relationship between individual gears and levers be maintained.

All alignments are to be performed with the mechanism in Eject mode, in the sequence given. Each

procedure assumes that all previous procedures have been completed.

IMPORTANT:

If any one of these alignments is not performed properly, even if off by only one tooth, the unit will unload or stop and it may result in damage to the mechanical or electrical parts.

Alignment points in Eject Position

Top View

Alignment [a]

Alignment 3

Alignment 1

Loading Arm, S and T Assembly

Install Loading Arm S and T Assembly so that their triangle marks point to each other as shown in Fig. AL2.

Alignment 2

Mode Gear

Keeping the two triangles pointing at each other,

install the Loading Arm T Assembly so that the last tooth of the gear meets the most inside teeth of the Mode Gear. See Fig. AL2.

Alignment 1

Triangle Marks

Loading Arm T Assembly

Loading Arm S Assembly

Last Tooth

Alignment 2

Most inside teeth of Mode Gear

Mode Gear

Bottom View

Alignment [a] can be done independently of any other alignment.

Alignment 1

Alignment 2

Fig. AL1

Fig. AL2

Alignment [a]

Tape Guide Assembly

Measurement of the screw must be as specified in

Fig. AL3.

Tape Guide Assembly

Screw

3.25 – 0.1 mm

0.128 – 0.004 inch

This alignment can be done independently of any other alignment.

Fig. AL3

2-4-9 U25NAPM

Alignment 3

Cam Gear (A), Rack Assembly

Install the Rack Assembly so that the first tooth on the gear of the Rack Assembly meets the first groove on the Cam Gear (A) as shown in Fig. AL4.

Top View

First groove on the Cam Gear (A)

Cam Gear (A)

Alignment 3

First tooth

Gear on Rack Assembly

Fig. AL4

2-4-10 U25NAPM

EXPLODED VIEWS AND

PARTS LIST SECTION

19" COLOR TV/DVD/VCR

6719DC/SSC719C/EWC19T2

Sec. 3: Exploded views and Parts List Section

I Exploded views I Parts List

TABLE OF CONTENTS

Cabinet Exploded Views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1-1

Packing Exploded Views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1-3

Deck Mechanism Exploded Views. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1-4

Mechanical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2-1

Electrical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3-1

Deck Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4-1

Cabinet

Details for L551 and surrounding parts

B4

A4

B2

SP1801

L4

B4

L4

B6

CL2802

A1-1

SHINWHA TAPE SGT-730 (WHITE)

CLN551

V501

B2

V501-2

SHINWHA TAPE SGT-730 (BLACK)

V501-3

L551

B4

B2

SCOTCH TAPE #880

B4

B1

SCOTCH TAPE #880

A1-9

A1-7

A1-8

A1-6

A1-5

A1-6

V501-1

L551

B2

DG601

CL404

CL403

CRT CBA

Filter CBA

Power Supply /AV CBA

EXPLODED VIEWS

TL3

TL2

TL1

TB4

TB17

TL1

TL3

TB18

TL3

TL2

DVD Main CBA Unit

TL1

TL6

TB9

Junction B CBA

TB6

1B2

TL6

1B1

Sensor CBA

TL1

TB7

TL3

TL1

TB3

TB13

TL1

TB10

B5

TL1

B3

TL1

L1

TL3

TB2

TL1

Main CBA

TL1

DL2

L1

A2

B5

Junction A CBA

DB4

A3

L1

L3

L2

L1

A1-3

A1-2

DL1

DB1

SP2801

A1X

A1-4

L4

B6

L4

CL3404

TB14

TL5

TL14

TL18

TB1

Sensor CBA

DB2

See Electrical Parts List for parts with this mark.

3-1-1 3-1-2 TD500CEX

Packing

TAPE

X3

X2

X4

X5

S2

PACKING TAPE

X1

S1

S6

S7

S3

S4

3-1-3 TD500PEX

DECK EXPLODED VIEWS

Deck Mechanism View 1

B9

B2

B73

L1191

B10

L1053

B74

B411

B567

L1467

B410

B494

B35

Mark Description

Floil G-374G SLIDUS OIL #150

B553

(Blue grease)

Part No.

0VZZ00109 0VZZ00226

L1051

B12

B11

B571

Some Ref. Numbers are not in sequence.

B492

B37

L1450

B426

B121

Chassis Assembly Top View (Lubricating Point)

B501

B560

L1466

B126

L1468

B8

Chassis Assembly Bottom View (Lubricating Point)

3-1-4 Z11DEX-REV2

Deck Mechanism View 2

B27

B487

B508

B414

B587

B499

B572

B565

Note: Both the TENSION LEVER SUB ASSEMBLY MK11(B27) and the TENSION LEVER ASSEMBLY MK11 (B587) can be used.

B573

B518

B564

B585

B521

Mark Description

Floil G-374G

SANKOUL FG84M

B574

B520

B416

B148

B522

B31

L1151

L1406

Part No.

0VZZ00109(Blue grease)

0VZZ00062(Yellow grease)

B3

B558

B557

B525

B551

View for A

(Grease point)

B417

B568

B507

B569

B505

B488

B491

B570

B502

B513

Bottom Side (Grease point)

B133

B559

A

B516

B52

Some Ref. Numbers are not in sequence.

3-1-5 Z11DEX-REV2

Symphonic 6719DC, SSC719C, EWC19T2 Schematic

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

SCHEMATIC DIAGRAMS / CBA’S AND TEST POINTS

SYSTEM CONTROL TIMING CHARTS

IC PIN FUNCTION DESCRIPTIONS

LEAD IDENTIFICATIONS

STANDARD MAINTENANCE

SERVICE FIXTURE AND TOOLS

MECHANICAL ALIGNMENT PROCEDURES

ALIGNMENT PROCEDURES OF MECHANISM