Jvc TH-V70 Service Manual

SERVICE MANUAL

DVD DIGITAL THEATER SYSTEM

TH-V70

Area suffix

J ----------------------------- U.S.A. C -------------------------- Canada

TH-V70

SP-XSV70SP-XSV70

SP-PWV70 XV-THV70

Contents

Safety precautions Preventing static electricity Importance administering point on the safety

SP-XCV70 SP-XSV70SP-XSV70

1-2 1-3 1-4

Disassembly method Adjustment method Description of major ICs

1-6 1-21 1-22~54

No.21089

Jul. 2002

TH-V70

1. This design of this product contains special hardware and many circuits and components specially for safety purposes. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Services should be performed by qualified personnel only.

2. Alterations of the design or circuitry of the product should not be made. Any design alterations of the product should not be made. Any design alterations or additions will void the manufacturer`s warranty and will further relieve the manufacture of responsibility for personal injury or property damage resulting therefrom.

3. Many electrical and mechanical parts in the products have special safety-related characteristics. These

characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in the Parts List of Service Manual. Electrical components having such features are identified by shading on the schematics and by ( ) on the Parts List in the Service Manual. The use of a substitute replacement which does not have the same safety characteristics as the recommended replacement parts shown in the Parts List of Service Manual may create shock, fire, or other hazards.

4. The leads in the products are routed and dressed with ties, clamps, tubings, barriers and the like to be separated from live parts, high temperature parts, moving parts and/or sharp edges for the prevention of electric shock and fire hazard. When service is required, the original lead routing and dress should be observed, and it should be confirmed that they have been returned to normal, after re-assembling.

5. Leakage currnet check (Electrical shock hazard testing) After re-assembling the product, always perform an isolation check on the exposed metal parts of the product (antenna terminals, knobs, metal cabinet, screw heads, headphone jack, control shafts, etc.) to be sure the product is safe to operate without danger of electrical shock. Do not use a line isolation transformer during this check.

Plug the AC line cord directly into the AC outlet. Using a "Leakage Current Tester", measure the leakage current from each exposed metal parts of the cabinet, particularly any exposed metal part having a return path to the chassis, to a known good earth ground. Any leakage current must not exceed 0.5mA AC (r.m.s.).

Alternate check method Plug the AC line cord directly into the AC outlet. Use an AC voltmeter having, 1,000 ohms per volt or more sensitivity in the following manner. Connect a 1,500 10W resistor paralleled by a 0.15 F AC-type capacitor between an exposed metal part and a known good earth ground. Measure the AC voltage across the resistor with the AC voltmeter. Move the resistor connection to each exposed metal part, particularly any exposed metal part having a return path to the chassis, and meausre the AC voltage across the resistor. Now, reverse the plug in the AC outlet and repeat each measurement. Voltage measured any must not exceed 0.75 V AC (r.m.s.). This corresponds to 0.5 mA AC (r.m.s.).

0.15 F AC TYPE

1500 10W

Good earth ground

AC VOLTMETER (Having 1000 ohms/volts, or more sensitivity)

Place this probe on each exposed metal part.

!

1. This equipment has been designed and manufactured to meet international safety standards.

2. It is the legal responsibility of the repairer to ensure that these safety standards are maintained.

3. Repairs must be made in accordance with the relevant safety standards.

4. It is essential that safety critical components are replaced by approved parts.

5. If mains voltage selector is provided, check setting for local voltage.

Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of preforming repair of this system.

In regard with component parts appearing on the silk-screen printed side (parts side) of the PWB diagrams, the parts that are printed over with black such as the resistor ( ), diode ( ) and ICP ( ) or identified by the " " mark nearby are critical for safety. (This regulation does not correspond to J and C version.)

1-2

Preventing static electricity

1. Grounding to prevent damage by static electricity

Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy the laser diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs.

2. About the earth processing for the destruction prevention by static electricity

Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as DVD players. Be careful to use proper grounding in the area where repairs are being performed.

2-1 Ground the workbench

Ground the workbench by laying conductive material (such as a conductive sheet) or an iron plate over it before placing the traverse unit (optical pickup) on it.

2-2 Ground yourself

Use an anti-static wrist strap to release any static electricity built up in your body.

(caption) Anti-static wrist strap

TH-V70

Conductive material (conductive sheet) or iron plate

3. Handling the optical pickup

In order to maintain quality during transport and before installation, both sides of the laser diode on the

1. replacement optical pickup are shorted. After replacement, return the shorted parts to their original condition. (Refer to the text.)

Do not use a tester to check the condition of the laser diode in the optical pickup. The tester's internal power

2. source can easily destroy the laser diode.

4. Handling the traverse unit (optical pickup)

1.

Do not subject the traverse unit (optical pickup) to strong shocks, as it is a sensitive, complex unit.

2.

Remove solder of the short lands on the flexible wire after replacing the optical pickup. For specific details, refer to the replacement procedure in the text. Remove the anti-static pin when replacing the traverse unit. Be careful not to take too long a time when attaching it to the connector.

3.

Handle the flexible wire carefully as it may break when subjected to strong force.

4.

It is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it.

5. Attention when traverse unit is decomposed

*Please refer to "Disassembly method" in the text for the DVD pickup unit.

Short lands

Apply solder to the short lands before the flexible wire is disconnected from the connector on the DVD servo board. (If the flexible wire is disconnected without applying solder, the DVD pickup may be destroyed by static electricity.) In the assembly, be sure to remove solder from the short lands after connecting the flexible wire.

Flexible wire

Connector

DVD mechanism assembly

CN202

CN201

DVD servo board

1-3

TH-V70

Importance administering point on the safety

Main board

F901

1-4

Caution: For continued protection against risk of fire, replace only with same type 1.6A/125V for F901. This symbol specifies type of fast operating fuse.

Precaution: Pour eviter risques de feux, remplacez le fusible de surete de F901 comme le meme type que 1.6A/125V. Ce sont des fusibles suretes qui functionnes rapide.

F505

F504

TH-V70

Power supply & SP terminal board

F403

Mother board

Caution: For continued protection against risk of fire, replace only with same type 4A/125V for F403, 8A/125V for F504, 8A/125V for F505. This symbol specifies type of fast operating fuse.

Precaution: Pour eviter risques de feux, remplacez le fusible de surete de F403 comme le meme type que 4A/125V, F504 comme le meme type que 8A/125, et 8A/125V pour F505. Ce sont des fusibles suretes qui functionnes rapide.

1-5

TH-V70

Disassembly method

Removing the top plate (See Fig. 1.)

From the top side of the main body, remove the four screws A attaching the top plate.

Removing the bottom panel

(See Figs. 2 and 3.)

1.

From the rear side of the main body, remove the three screws B attaching the bottom panel.

2.

From the bottom side of the main body, remove the two screws C attaching the bottom panel.

3.

Remove the bottom panel in an upward direction.

A

B

Top plate

A

Fig.1

Top panel

Bottom panel

Fig.2

Removing the top panel (See Fig. 4.)

Remove the top plate. Remove the bottom panel.

1.2.Slide the top panel toward the rear (direction of the arrow) and disengage it from the engagement sections a and b of the bottom chassis.

C

Bottom panel

Fig.3

Top panel

bb

Remove the top panel in an upward direction.

1-6

a

Fig.4

TH-V70

Removing the DVD mechanism assembly (See Figs. 5 and 6.)

Remove the top plate. Remove the bottom panel. Remove the top panel.

1.

From the top side of the main body, disengage the claw c of the DVD mechanism assembly and then remove the push button.

2.

Remove the five screws D and screw E attaching the DVD mechanism assembly.

3.

Disconnect the wire from connector CN812 on the LED board.

4.

Disconnect the connectors CN502 and CN503 on the DVD servo board from connectors CN801 and CN803 on the main board while lifting the DVD mechanism assembly in an upward direction.

Removing the front panel assembly

(See Figs. 7 and 8.)

LED board

CN502

D

Claw c

CN812

Push button

Fig.5

DVD mechanism assembly

D

E

DVD servo board

CN503

Front panel assembly

Remove the top plate. Remove the bottom panel. Remove the top panel. Remove the DVD mechanism assembly.

1.

Remove the wire clamp bundling the wires of the front panel assembly.

2.

Remove the card wire of the front panel assembly from the wire holder.

3.

Disconnect the wires from connectors CN106 and CN814 on the main board.

4.

Disconnect the card wires from connectors CN802 and CN813 on the main board.

5.

From the front side of the main body, remove the two screws F attaching the front panel assembly.

6.

Disengage the claws d of the front panel assembly from the bottom chassis and then remove the front panel assembly in the direction of arrow.

[Reference] Before attaching the front panel assembly, pass the card wire of the front panel assembly through the hole on the bottom chassis. After attaching the front panel assembly, bundle the wires and card wire of the front panel assembly using a wire clamp.

[Caution] In the assembly, arrange the wires and wire clamp so that they are not touch to the regulator IC(IC953).

Main board

Wire holder

Bottom chassis hole

Claws d

CN803 CN801

Fig.6

CN814

CN813

CN802

CN106

Card wires

Fig.7

Front panel assembly

F

Fig.8

Main board

Wire clamp

Bottom chassis

Wire

IC953

Claws d

Bottom chassis

1-7

TH-V70

Removing the DSP/Audio board

(See Figs. 9 and 10.)

Remove the top plate. Remove the bottom panel. Remove the top panel. Remove the DVD mechanism assembly.

1.

From the top side of the main body, remove a screw G attaching the DSP/Audio board.

2.

From the rear side of the main body, remove the screw H and two screws J attaching the DSP/Audio board.

3.

Take out the DSP/Audio board from the bottom chassis and then disconnect the card wire from connector CN806 on the main board.

Compulink board

CN592

CN805

CN806

Tuner

DSP/Audio board

Card wire

G

Card wire

[Reference] Before attaching the DSP/Audio board, connect the card wire to the connector CN806 on the main board.

Removing the compulink board

(See Figs. 9 and 10.)

Remove the top plate. Remove the bottom panel. Remove the top panel. Remove the DVD mechanism assembly.

1.

Disconnect the card wire from connector CN592 on the compulink board.

2.

From the rear side of the main body, remove the screw K attaching the compulink board.

3.

Take out the compulink board from the bottom chassis.

Removing the tuner

(See Figs. 9 and 10.)

Remove the top plate. Remove the bottom panel. Remove the top panel. Remove the DVD mechanism assembly.

H

L

Fig.9

J

K

Rear panel

Fig.10

1.

Disconnect the card wire from connector CN805 on the main board.

2.

From the rear side of the main body, remove the two screws L attaching the tuner.

3.

Take out the tuner from the bottom chassis.

1-8

Removing the main board

(See Figs. 11 and 12.)

Remove the top plate. Remove the bottom panel. Remove the top panel. Remove the DVD mechanism assembly. Remove the front panel assembly. Remove the DSP/Audio board.

1.

Disconnect the card wire from connector CN805 on the main board.

2.

Remove the wire clamp bundling the fan motor wire and then disconnect the wire from connector CN972 on the main board.

3.

Disconnect the card wire from connector CN592 on the compulink board.

4.

Remove the five screws M and screw M' attaching the main board.

Main board

M

Fan motor wire

Wire clamp

Wire holder

Insert this wire into the notch.

M

CN972

M'

Fig.11

Rear panel

Compulink board

CN592

CN805

M

TH-V70

Tuner

Card wire

M

N

5.

From the rear side of the main body, remove the three screws N attaching the main board.

6.

Remove the rear panel with the tuner and compulink board.

7.

Take out the main board from the bottom chassis.

[Reference] Attaching the main board When attaching the screw M', attach the wire holder together with it. After connecting the wires to the connectors, bundle them using the wire clamp. Insert the DVD mechanism assembly wire into the notch on the bottom chassis. (See Fig. 11.)

Removing the fan motor

(See Figs. 13 and 14.)

Remove the top plate. Remove the bottom panel. Remove the top panel. Remove the DVD mechanism assembly.

1.

Remove the wire clamp and tie band bundling the fan motor wire.

Fig.12

Fan motor wire

Wire clamp

CN972

Tie band

Fig.13

Bottom chassis Fan motor Front panel

assembly

2.

Disconnect the wire from connector CN972 on the main board.

3.

From the left side of the main body, remove the two screws P attaching the fan motor.

[Reference] After mounting the fan motor, bundle the fan motor wire using the wire clamp.

P

Fig.14

1-9

TH-V70

Remove the top plate. Remove the bottom panel. Remove the top panel. Remove the DVD mechanism assembly. Remove the front panel assembly.

Removing the switch board

(See Fig. 15.)

From the back side of the front panel assembly, remove the four screws Q attaching the switch board.

Removing the open/close board

(See Figs. 15 and 16.)

1.2.From the back side of the front panel assembly,

remove the two screws R attaching the door motor assembly.

Remove the screw S attaching the open/close board of the door motor assembly.

Removing the door motor (See Fig. 16.)

Remove the door motor assembly.

1.

Remove the stop washers attaching the clutch assembly and gear 2.

2.

Remove the clutch assembly, washer and Gear 2.

Door motor assembly

R

Clutch assembly

Stop washer

Gear 2

Front panel assembly (Back side)

Fig.15

Door motor

Washer

Fig.16

Rod gear assembly

Q

Switch board

T S

Open/close board

Door motor assembly

e

3.

Remove the two screws T attaching the door motor.

Removing the front board

(See Figs. 17 to 20.)

1.

While widening section e of the front base in the direction of the arrow, remove the rod gear assembly.

2.

Slide the moving panel assembly all the way in the direction of the arrow.

3.

While slightly widening sections f toward the front, take out the moving panel assembly in the direction of the arrow.

4.

Remove the two screws W attaching the moving base of the moving panel assembly.

5.

Disengage the engagement sections g on the inside of the moving base and at the inside of the moving panel assembly and remove the moving base.

6.

Remove the two screws X attaching the front board.

7.

Disengage the claws h of the moving panel and remove the front board.

[Reference] Before attaching the moving base, pass the card wire of the front board through the hole on the moving base. (See Fig.19.)

Front base

W

X

Fig.17

Fig.18

Fig.19

Fig.20

f

Moving panel assembly

Hole

h

Front base

Moving base

Front board

Moving panel

gg

Card wire

1-10

TH-V70

Remove the top plate. Remove the bottom panel. Remove the top panel. Remove the DVD mechanism assembly.

Removing the LED board (See Fig. 1.)

From the top side of the DVD mechanism assembly, disengage the claw a of the top chassis attaching the LED board and then remove the LED board.

Removing the DVD mechanism

assembly (See Fig. 2.)

Extend the both sides of the protector, and then

1. raise the protector in the direction of arrow.

Remove the three screws A attaching the DVD

2. mechanism assembly on the top chassis.

Claw a

A

LED board

Fig.1

DVD mechanism assembly

Top chassis

Removing the DVD servo board

(See Fig. 3.)

[Caution] Be sure to solder the short land sections b on the flexible wire before disconnecting the flexible wire from connector CN101 on the DVD servo board. If the flexible wire is disconnected without attaching solder, the pickup unit may be destroyed by static electricity.

1.

From the back side of the DVD mechanism assembly, attach solder to the short land sections b of the flexible wire that is connected to the connector CN101 of the DVD servo board.

2.

Disconnect the flexible wire from connector CN101 on the DVD servo board.

3.

Disconnect the card wires from connectors CN201 and CN202 on the DVD servo board.

4.

Remove the two screws B attaching the DVD servo board.

Protector

Flexible wire

DVD servo board

Fig.2

Short land sections b

DVD mechanism assembly

B

CN202

CN101

CN201

Projection e

B

A

Top chassis

Projection d

Claw c

5.

While pushing the claw c of the DVD mechanism assembly in the direction of the arrow, remove the DVD servo board from the projections d and e in an upward direction.

[Caution] In the assembly, be sure to remove solder from the short land sections b after connecting the flexible wire.

Fig.3

1-11

TH-V70

Removing the DVD traverse

mechanism assembly (See Fig. 4.)

Remove the DVD servo board.

1.

Remove the two screws C attaching the DVD traverse mechanism assembly.

2.

Disengage the claw f attaching the DVD traverse mechanism assembly and then take out the DVD traverse mechanism assembly.

DVD traverse mechanism assembly

Removing the DVD pickup unit

(See Figs. 5 to 7.)

Remove the DVD servo board. Remove the DVD traverse mechanism assembly.

1.

From the top side of the DVD traverse mechanism assembly, remove the screw D attaching the bracket.

2.

Remove the claw g attaching the thrust spring and then take out the torsion spring.

3.

Remove the lead screw from the section h and then remove the shaft from the section i.

4.

Disengage the section j of the DVD pickup unit and then remove the DVD pickup unit with the shaft.

5.

Pull the shaft out of the DVD pickup unit.

C

D

Bracket

DVD traverse mechanism assembly

DVD pickup unit

Claw f

C

Fig.4

DVD pickup unit

Shaft

Fig.5

Section i

6.

Remove the two screws E attaching the SW. actuator.

SW. actuator

Shaft

Fig.7

1-12

E

DVD pickup unit

Section j

Section h

Lead screw

Shaft

Claw g

Thrust spring

Fig.6

Attaching the DVD pickup unit

(See Figs. 5 to 9.)

[Reference] Refer to the explanation of "Removing the DVD pickup unit" on the preceding page.

1.

Attach the SW. actuator and shaft to the DVD pickup unit. (See Fig.7.)

2.

Engage the section j of the DVD pickup unit to the shaft of the DVD traverse mechanism assembly first, and set the both ends of the shaft of the DVD pickup unit in the sections i and i' of the DVD traverse mechanism assembly.

3.

Slide the DVD pickup unit all the way in the direction of the arrow.

4.

Mesh the lead screw to the section k of DVD pickup unit and then set the end of the lead screw to the section h.

TH-V70

Section j

DVD pickup unit

Section i

Shaft

Section i'

Fig.8

Section h

5.

Attach the thrust spring. (See Fig.6.)

6.

Attach the bracket. (See Fig.5.)

Removing the spindle motor board

(See Figs. 10 and 11.)

Remove the DVD servo board. Remove the DVD traverse mechanism assembly.

1.

From the top side of the DVD traverse mechanism assembly, remove the feed motor wire that is soldered to the spindle motor board.

2.

From the back side of the DVD traverse mechanism assembly, remove the three screws F attaching the spindle motor board.

F

DVD pickup unit

Spindle motor board

Section k

Lead screw

Fig.9

Remove the solders.

Feed motor wire

Feed motor

Fig.11

Spindle motor board

Fig.10

1-13

TH-V70

Removing the feed motor

(See Figs. 12 to 14.)

Remove the DVD servo board. Remove the DVD traverse mechanism assembly.

1.

Remove the four screws G attaching the traverse mechanism assembly.

2.

Take out the traverse mechanism assembly from the mechanism base.

3.

Remove the screw D attaching the bracket and take out the bracket.

4.

Disengage the claw g attaching the thrust spring and take out the thrust spring.

5.

Pull out the lead screw in the direction of arrow.

6.

Remove the feed gear M.

7.

Remove the feed motor wire that is soldered to the spindle motor board.

Traverse mechanism assembly

Spindle motor board

G

Bracket

G G

Fig.12

Remove the solders.

D

Mechanism base

Feed motor

8.

Remove the two screws H attaching the feed motor and take out the feed motor.

Torsion spring

Fig.13

Feed motor wire

Lead screw

Feed motor

Feed gear M

Claw g

1-14

Traverse mechanism assembly

H

Fig.14

Removing the switch board

(See Fig.15.)

Remove the DVD mechanism assembly.

1.

From the top side of the CD mechanism assembly, remove the screw J attaching the switch board.

2.

Lift the switch board slightly and then remove the wire from connector CN101 on the switch board.

Removing the loading motor assembly

(See Figs.3, 15 to 17.)

TH-V70

CD mechanism assembly Clamper base assembly

J

Remove the DVD mechanism assembly.

1.

From the back side of the DVD mechanism assembly, disconnect the card wire from connector CN202 on the DVD servo board. (See Fig.3.)

2.

From the top side of the CD mechanism assembly, remove the two screws K attaching the clamper base assembly.

3.

Disconnect the wire from connector CN101 on the switch board while lifting the clamper base assembly slightly and remove the clamper base assembly.

4.

Remove the three screws L attaching the roller holder assembly and take out the roller holder assembly.

5.

Disconnect the wires from connectors CN103 and CN104 on the loading motor assembly.

6.

Remove the belt of the loading motor assembly.

7.

Remove the two screws M attaching the loading motor assembly and take out the loading motor assembly.

CN101

Roller holder assembly

L

K

M

Switch board

Fig.15

Fig.16

CN103

K

L

Roller holder assembly

CN104

Loading motor assembly

M

Fig.17

Belt

1-15

TH-V70

Removing the amplifier assembly

(See Figs. 1 and 2.)

1.

From the rear side of the speaker main body, remove the four screws A attaching the heat sink cover and then remove the heat sink cover.

2.

Remove the eight screws B attaching the amplifier assembly.

3.

Move the amplifier assembly backward and disconnect the wire from connector CN109 in the lower part of the amplifier assembly.

Removing the rear panel (See Fig. 3.)

Remove the amplifier assembly.

1.2.Pull out the knob.

Amplifier assembly

B

Fig.1

A

Heat sink cover

A

Amplifier assembly

Remove the ten screws C, ten screws D and screw

E attaching the rear panel.

BB

CN109

B

Fig.2

Amplifier assembly

C

Knob

CCD

E

DD

1-16

C D D

C

D

Rear panel

C

Fig.3

Removing the pre-amplifier board

(See Figs. 4 to 6.)

TH-V70

Mother board

Remove the rear panel.

1.

Remove the two screws F attaching the volume bracket.

2.

Disconnect the pre-amplifier board from the connector CN201 on the mother board and take out the pre-amplifier board.

3.

Pull out the push button.

4.

Remove the two screws G and nut attaching the volume bracket.

Removing the power supply & SP

terminal board (See Figs. 4 and 5.)

Remove the rear panel.

1.

Remove the two screws H attaching the AC bracket.

2.

Disconnect the power supply & SP terminal board from the connectors CN210 and CN211 on the mother board.

3.

Disconnect the wire from connector CN107 on the power supply & SP terminal board.

4.

Disconnect the power cord from connector CN108 on the power supply & SP terminal board.

F

Volume bracket

Pre-amplifier board

AC bracket

H

Volume bracket

Pre-amplifier board

Power supply & SP terminal board

H

Fig.4

Power transformer

CN101

CN111

CN110

Heat sink

CN201

Mother board

CN211

CN210

CN108

Push button

CN107

Fig.5

Volume bracket

Nut

G

Fig.6

Power cord

Pre-amplifier board

CN101

1-17

TH-V70

Removing the mother board

(See Figs. 7 and 8.)

Remove the rear panel. Remove the pre-amplifier board. Remove the power supply & SP terminal board.

1.

Disconnect the wire from the connector CN104 on the mother board.

2.

Remove the seven screws J attaching the mother board.

3.

Take out the mother board with the power amplifier board (A,B).

4.

From the bottom side of the mother board, remove the two screws K and two screws L attaching the power amplifier board (A,B).

5.

Remove the power amplifier board (A,B) from connectors CN202, CN203, CN205 and CN206 on the mother board.

Removing the power amplifier

board (A) (See Figs. 9 and 10.)

Remove the mother board.

J

CN104

CN202

CN203

Mother board

J

Fig.7

KL

J

Power amplifier board (A)

J

Power amplifier board (B)

J

Power transformer

Mold base

Mother board

CN206

Power amplifier board (B)

1.

Remove the four screws M attaching the heat sink to the power amplifier board (A).

2.

From the bottom side of the power amplifier board (A), disengage the four engagement sections a.

3.

From the top side of the power amplifier board (A), slide the P.TR holder (A) in the direction of the arrow to disengage the engagement section b and remove the power amplifier board (A) from the P.TR holder (A).

a

1

2

(Bottom side)

Power amplifier board (A)

CN102

P.TR holder (A)

CN103

b

Power amplifier board (A)

P.TR holder (A)

M

K

CN205

L

Fig.8

M N

N

P.TR holder (B)

1-18

2

1

(Bottom side)

a

Fig.10

M

Fig.9

N

TH-V70

Removing the power amplifier

board (B) (See Figs. 9 and 11.)

Remove the mother board.

1.

Remove the four screws N attaching the heat sink to the power amplifier board (B). (See Fig.9.)

2.

From the bottom side of the power amplifier board (B), disengage the four engagement sections c.

3.

From the top side of the power amplifier board (B), slide the P.TR holder (B) in the direction of the arrow to disengage the engagement section d and remove the power amplifier board (B) from the P.TR holder (B).

Removing the power transformer

(See Figs. 12 and 13.)

Remove the rear panel.

1.

Remove the wire from the connector CN104 on the mother board.

P.TR holder (B)

Mother board

c

1

CN106

Power amplifier board (B)

d

CN105

c

2

(Bottom side)

2

1

(Bottom side)

Fig.11

2.

Disconnect the wire from the connector CN107 on the power supply & SP terminal board.

3.

Remove the four screws P attaching the power transformer and then remove the power transformer from the transformer bracket of the mold base.

Power supply & SP terminal board

P

CN104

Transformer bracket

P

Power transformer

P

Fig.12

Mold base

Power supply & SP terminal board

CN107

Fig.13

1-19

TH-V70

Removing the LED indicator

(See Figs. 14 to 16.)

1.

Insert the tip of a flat-bladed screwdriver or a similar tool into the space between the speaker main body and the ornament panel (the section indicated by the arrows), and lift the net little by little to remove.

[Note] To prevent damaging the ornament panel and speaker main body, insert cushioning plates etc. above and below the tip of the flat-bladed screwdriver or a similar tool.

2.3.From the back side of the ornament panel, remove the two screws Q attaching the LED indicator.

Ornament panel

JVC

Fig.14

Disconnect the wire from connector CN109 on the LED indicator.

Removing the speaker

(See Figs. 17 and 18.)

1.

Remove the eight screws R attaching the speaker.

2.

Take out the speaker.

Ornament panel

Q

Cushioning plate, etc.

Speaker main body

Fig.15

CN109

LED indicator

Flat-bladed screwdriver, etc.

Cushioning plate, etc.

Q

3.

Disconnect the wires from the terminals of the speaker.

Speaker main body

R

Ornament panel

Speaker

Fig.17

1-20

Fig.16

R

Terminal

Speaker

Fig.18

Adjustment method

Initializing in TEST MODE

TH-V70

Moving panel close?

YES

While pressing both the STOP button (fourth button from left) and EJECT (farthest right button) button on the main unit, plug in the power.

FL indication

TEST E

Monitor indication (Upper left of the monitor)

E(Europe)

Pressing the PAUSE button (fifth button from right)

Initialization starts

FL indication

"ATT" will appear

NO

Press the power button on the main unit, and put it in standby.

Make sure that the panel has closed.

Pull out the power plug.

Initialization is complete.

Set the power to standby.

1-21

TH-V70

Description of major ICs

AN8703FH (IC101) : Frontend processor for DVD

1.Terminal layout

HDTYPE

VIN12

VIN11

GND1

VIN4

VIN3

VIN2

VIN1

646362616059585756555453525150

LPC1

1

LPCO1

2

LPC2

3

LPCO2

TBAL FBAL

POFLT

DTRD

IDGT

SEN SCK

STDIO

RSCL JLINE

4 5 6 7 8 9 10 11 12 13 14 15 16

AN8703FH

VFOSHORT

STANDBY

VREF1

VCC1

VIN10

VIN9

VIN8

VIN7

VIN6

VIN5

49

48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33

RFINN RFINP TESTSG AGCO AGCG PEAK BOTTOM RFENV BDO OFTR DCRF RFC VCC3 RFOUT RFDIFO GND3

171819202122232425262728293031

TEN

TEOUT

AGCBAL

FEN

ASOUT

FEOUT

AGCOFST

MON

GND2

AGCLVL

VCC2

VREF2

VHALF

DFLTON

32

DCFLT

DFLTOP

2. Pin function

Pin No. Symbol I/O Function

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

LPC1

LPCO1

LPC2

LPCO2

VFOSHORT

TBAL FBAL

POFLT

DTRD

IDGT

STANDBY

SEN SCK

STDIO

RSCL JLINE

TEN

TEOUT

AGCBAL

ASOUT

FEN

FEOUT

AGCOFST

MON

AGCLVL

GND2

VREF2

VCC2

VHALF

DFLTON

I

Laser pin input (DVD head)

O

Laser drive output (DVD head)

I

Laser pin input (CD head)

O

Laser drive output (CD head)

I

VFOSHORT control

I

Tracking balance control

I

Focus balance control

O

Track detection threshold level

I

Data slice data read signal input (for RAM)

I

Data slice address gate signal input (for RAM)

I

Standby mode control

I

SEN(Serial data input)

I

SCK(Serial data input)

I/O

STDI(Serial data I/O)

I

Reference current supply

I

J-line current setting

I

Tracking error amplifier inverted input

O

Tracking error signal output

I

Offset adjustment for DRC-1

O

Full addition signal output

I

Focus error amplifier inverted input

O

Focus error signal output

I

Offset adjustment for DRC-2

-

Not use (Monitor)

I

Output amplitude adjustment for DRC

-

Ground 2

O

VREF2 voltage output

-

Power supply 2 (5V)

O

VHALF voltage output

O

Filter amplifier inverted output

1-22

Pin No. Symbol I/O Function

31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

DFLTOP

DCFLT

GND3

RFDIFO

RFOUT

VCC3

RFC DCRF OFTR

BDO

RFENV

BOTTOM

PEAK

AGCG AGCO

TESTSG

RFINP RFINN

VIN5 VIN6 VIN7 VIN8

VIN9 VIN10 VCC1

VREF1

VIN1

VIN2

VIN3

VIN4 GND1 VIN11 VIN12

HDTYPE

O

Filter amplifier positive output

O

Filter output capacitance connection

-

Ground 3

-

Radial differential output (Not use)

O

RF full-addition amplifier output

-

Power supply 3 (3.3V)

I

Filter for RF-group delay correction amplifier

O

DC-cut filter for RF full-addition amplifier

O

OFTR output

O

BDO output

O

RF envelope output

O

Bottom envelope detection filter

O

Peak envelope detection filter

O

AGC amplifier gain control

O

AGC amplifier level control

I

TEST signal input

I

RF signal positive input

I

RF signal inverted input

I

Internal four-partition (CD) RF input 1

I

Internal four-partition (CD) RF input 2

I

Internal four-partition (CD) RF input 3

I

Internal four-partition (CD) RF input 4

I

External two-partition (DVD) RF input 2

I

External two-partition (DVD) RF input 1

-

Power supply 1 (5V)

O

VREF1 voltage output

I

Internal four-partition (DVD) RF input 1

I

Internal four-partition (DVD) RF input 2

I

Internal four-partition (DVD) RF input 3

I

Internal four-partition (DVD) RF input 4

-

Ground 1

I

3-beam sub (CD) input 2

I

3-beam sub (CD) input 1

I

HD type selection

TH-V70

MM74HCT32MTC / 74LCX32MTC (IC521 / IC522) : Quad 2 input OR gate

1. Terminal layout & Block diagram 2. Truth table

11A 21B 31Y 42A 52B 62Y 7

(TOP VIEW)

14 13 12 11 10 9 8GND

VCC 4B 4A 4Y 3B 3A 3Y

INPUTS OUTPUT

A

B

L

H

L

H

Y L H H H

1-23

TH-V70

MN101C49GKD1 (IC801) : System micon

1.Terminal layout

100 76

1

75

25

26 50

2. Pin function

Pin No.

1 2 3 4 5 6 7 8

9 10 11 12 13

14,17,28,

31,32

15 16 18 19 20 21 22 23 24 25 26 27 29 30 33 34 35 36 37 38 39 40 41 42

51

Symbol Function

VREFNTSEL(RGB--SEL) VER/HOR SEL SW1 PHOTOSW LOCK VERSION KEY1 KEY2 VREF+ VDD OSC2 OSC1 GND

XI XO DI-DO D.O.MUTE DI-CK RXD (DATA OUT) TXD (DATA IN) SCLK CS CPU-RESET INTP REMOCON RDS ST SAFETY1 RESET DSP RST DSP RDY AVC-OUT AVC-IN VIDEO-MUTE1 VIDEO-MUTE2 VIDEO-Y/C-MIX VIDEO-RGB DSP-COM

I/O

-

Connect to ground

I

NTSC/PAL discrimination(RGB/YC switching discrimination) signal

I

Vertical/Horizontal setting discrimination signal

I

Slide door switch1

I

Loading mechanism photo switch

I

Slide door lock detection(AD)

I

Area discrimination signal

I

Key input1 (AD)

I

Key input2 (AD)

-

Reference power supply

-

Power supply

O

Oscillator output (8MHz)

I

Oscillator input (8MHz)

-

Ground

O

Not used (Connect to ground)

I

Not used (Not connect)

O

PANECON serial communication data output

O

MP3/JPEG mode: H (for DVD disc)

O

PANECON serial communication clock

O

Serial communication data output for PANTERA

I

Serial communication data input for PANTERA

I

Serial communication clock for PANTERA

O

Transmit request for PANTERA communication

O

Reset signal for PANTERA

I

Receive request for PANTERA communication (Interruption)

I

Remote control signal input (interruption)

I

RDS communication strobe (interruption)

I

Short detecting signal 1

I

Syscon reset input

O

DSP micom reset input

O

DSP micom ready

O

AV compulink output

I

AV compulink input

O

Video driver mute 1 control

O

Video driver mute 2 control

O

Video driver YCMIX control

O

Video driver RGB control

O

DSP serial communication data output

1-24

TH-V70

Pin No.

43 44 45 46 47 48 49 50

51 - 55,60

63,66

56 57 58 59 61 62 64 65 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85

86 - 88

89 90 91 92 93 94 95 96 97 98 99

100

Symbol FunctionI/O

DSP-STAT DSP-CLK VOL-DATA VOL-STB VOL-CLK SW2 INT/PROG REMO-CTL NC

MT1 MT1 MTS INH HP SYS P.ON DVD P.ON TUNER P.ON RDS DATA RDS CLK

TU-DATA-OUT

TU-DATA-IN TU CLK TU CE AM-BEAT S MUTE VS1 VS3 LED-DIM LED BLUE MECHA-V/H DISC-SET DISC-STOP DVD-SAFETY SW P.ON NC SELECT2 SELECT1 DI-RST DI-CS

TOPEN DAVSS TCLOSE LMMUTE SWOPEN SWUPDN DAVDD

I

DSP serial communication data input

O

DSP serial communication clock

O

VOLUME serial communication data output

O

VOLUME serial communication strobe

O

VOLUME serial communication clock

I

Slide door switch2

O

D terminal LINE2 switching

O

Remote controller switching control

-

Ground

O

Slide door motor control 0

O

Slide door motor control 1

O

Slide door motor speed control

I

AC switching detection

I

Headphone input detection

O

System power supply control

O

DVD power supply control

O

TUNER power supply control

O

RDS communication data

O

RDS communication clock

-

Not used

I

IF-DATA and tuner receive detection

-

Not used

O

TUNER serial communication data output

O

TUNER serial communication clock

O

TUNER serial communication CE

O

AM beat cut switching

O

System mute

O

E: Scart connector control, D: S1 OUT control

O

Control for scart connector control terminal

O

Disc LED dimmer control

O

Disc LED control

O

Indicate of mechanism position to front end

O

Indicate of read start permission to front end

I

Receive of eject permission from front end

I

Short detecting signal 2

O

Subwoofer power supply control

-

Not used

O

DSP signal switching (AUX)

O

DSP signal switching (TUNER)

O

PANECON reset output

O

PANECON serial communication CS

-

Not used

O

Loading mechanism motor control 1

-

Ground

O

Loading mechanism motor control 2

O

Loading mechanism motor driver mute

I

Loading mechanism eject switch

I

Loading mechanism loading switch

-

Power supply

1-25

TH-V70

MN102L62GLF1 (IC401) : Unit CPU

1. Terminal layout

100 76

1

75

25

26 50

2. Pin function

Pin No.

1

WAIT

2

RE

3

/SPMUTE

4

WEN

5

-

6

CS1

7

CS2

8

HDTYPE

9

/DRVMUTE

10

SBRK

11

LSIRST

12

WORD

13 - 16

26 - 33

35 - 40

A0 - A3

17

VDD

18

SYSCLK

19

VSS

20

XI

21

XO

22

VDD

23

OSCI

24

OSCO

25

MODE A4 - A11

34

VDD A12 - A17

41

A18

42

A19

43

VSS

44

A20

45

DISCSTP

46

HAGUP

47

-

48

-

49

/HFMON

50

TRVSW

51

SWUPDN

52

MECHA_H/V

53

DISCSET

54

VDD

55

FEPEN

56

SLEEP

51

Symbol Function

I/O

I

Micro computer wait signal input

O

Read enable

O

Spindle muting output to IC251

O

Write enable

-

Not connect

O

Chip select for ODC

-

Chip select for ZIVA (Not connect)

O

HD TYPE selection

O

Driver mute

O

SP motor brake control

O

LSI reset

O

Bus selection input

O

Address bus (0 - 3) for CPU

-

Power supply

-

System clock signal output (Not connect)

-

Ground

-

Not use (Connect to VSS)

-

Not connect

-

Power supply

I

Clock signal input (13.5MHz)

O

Clock signal output (13.5MHz)

I

CPU mode selection input

O

Address bus (4 - 11) for CPU

-

Power supply

O

Address bus (12 - 17) for CPU

-

Address bus 18 for CPU (Not connect)

-

Address bus 19 for CPU (Not connect)

-

Ground

-

Address bus 20 for CPU ( Not connect)

O

DISC STOP control

O

H/A gain control

-

Not connect

-

Not connect

I

HF monitor

I

Detection switch of traverse inside

-

Not connect

I

Disc detection

O

Serial enable signal for ADSC

-

Power supply

O

Serial enable signal for FEP

O

Standby signal for FEP

1-26

TH-V70

Pin No.

57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83

84 - 91

92

93 - 100

Symbol FunctionI/O

REQ

-

VSS EPCS EPSK EPDI EPDO VDD SCLKO S2UTD U2SDT CPSCK P74/SBI1 SDOUT

-

NMI ADSCIRQ ODCIRQ DECIRQ CSSIRQ ODCIRQ2 ADSEP RST VDD TEST1 - TEST 8 VSS D0 - 7

-

Not connect

O

Communication request

-

Connect to TP405 (REQ)

-

Not connect

-

Ground

O

EEPROM chip select

O

EEPROM clock

I

EEPROM data input

O

EEPROM data output

-

Power supply

I

Communication clock

I

Communication input data

O

Communication output data

O

Clock for ADSC serial

-

Connect to VSS

O

ADSC serial data output

-

Not use (Connect to ground)

-

Not use (Connect to ground)

-

Not use (Connect to ground)

I

Interrupt input of ADSC

I

Interrupt input of ODC

I

Interrupt input of ZIVA

I

Interrupt input of SODC

I

Interruption of system control

I

Address data selection input

I

Reset input

-

Power supply

I

Test signal (1 - 8) input

-

Ground

I/O

Data bus (0 - 7) of CPU

TC74HC00AF (IC408) : Quad 2 input NAND gate

1. Terminal layout & Block diagram

VCC 4B 4A 4Y 3B 3A 3Y

14 13

1

1A 1B 1Y 2A 2B 2Y GND

12

11 10 9 8

2

6

543

7

1-27

TH-V70

MN103S26EGA (IC301) : Optical disc controller

1.Terminal layout

176 133

1

132

2. Pin function

Pin No.

NINT0

1

NINT1

2

VDD3

3

VSS

4

NINT2

5

WAITODC

6

NMRST

7

DASPST

8

9 - 17

18 19 20 21

22 - 30

31 32 33 34 35 36

37 - 44

45 46 47 48 49 50 51 52

53 - 56

57 58 59 60

61 - 64

65 66 67 68 69 70

CPUADR17 - 9 VDD18 VSS DRAMVDD18 DRAMVSS CPUADR8 - 0 VDD3 VSS DRAMVDD3 NCS NWR NRD CPUDT7 - 0 CLKOUT1 MMOD NRST MSTPOL SCLOCK S DATA OFTR BDO PWM1 - 4 VDD3 DRAMVDD18 DRAMVSS VSS PWM5 - 8 TBAL FBAL TRSDRV SPDRV FG TILTP

44

45 88

Symbol

89

I/O

O

System control interruption 0

O

System control interruption 1

-

Power supply (3.3V)

-

Ground

O

System control interruption 2

O

System control wait control

-

System control reset (Not connect)

-

DASP signal initializing

I

System control address

-

Power supply (1.8V)

-

Ground

-

Connect to VDD18

-

Connect to VSS

I

System control address

-

Power supply (3.3V)

-

Ground

-

Connect to VDD3

I

System control chip select

I

System control write

I

System control read

I/O

System control data

-

Not connect

I

Connect to VSS

I

System reset

I

Master terminal polarity switch input

-

Not connect

-

Not connect

I

Off track signal input

I

RF dropout/BCA data of making to binary

-

Not connect

-

Power supply (3.3V)

-

Connect to VDD18

-

Connect to VSS

-

Ground

-

Not connect

O

Tracking balance adjustment output

O

Focus balance adjustment output

O

Traverse drive output

O

Spindle drive output

I

Motor FG input

-

Not connect

Function

1-28

TH-V70

Pin No.

71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98

99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119

Symbol I/O

TILT TILTN TX DTRD IDGT VDD18 VSS VDD3 OSCI1 OSCO1 VSS TSTSG VFOSHORT JLINE AVSS ROUT LOUT AVDD VCOF TRCRS CMPIN LPFOUT LPFIN AVSS HPFOUT HPFIN CSLFLT RFOIF AVDD PLFLT2 PLFLT1 AVSS RVI VREFH PLPG VHALF DSLF2 DSLF1 AVDD NARF ARF JITOUT AVSS DAC0 DAC1 AVDD AD0 AD1 AD2

Function

-

Not connect

-

Not connect

-

Not connect

-

Not connect

-

Not connect

-

Power supply (1.8V)

-

Ground

-

Power supply (1.8V)

I

16.9MHz clock input

-

Not connect

-

Ground

O

Calibration signal

O

VFO short output

O

J-line setting output

-

Analog ground

-

Not connect

-

Not connect

-

Analog power supply

I

JFVCO control voltage

I

Input signal for track cross formation

-

Not connect

-

Not connect

I

Pull-up to VHALF

-

Analog ground

-

Not connect

I

HPF input

I

Pull-up to VHALF

-

Not connect

-

Analog power supply

I

Connect to capacitor 2 for PLL

I

Connect to capacitor 1 for PLL

-

Analog ground

I

Connect to resistor for VREF reference current source

I

Reference voltage input (2.2V)

-

Not connect

I

Reference voltage input (1.65V)

I

Connect to capacitor 2 for DSL

I

Connect to capacitor 1 for DSL

-

Analog power supply

I

Equivalence RF-

I

Equivalence RF+

O

Output for jitter signal monitor

-

Analog ground

O

Tracking drive output

O

Focus drive output

-

Analog power supply

I

Focus error input

I

Phase difference/3 beams tracking error

I

AS: Full adder signal

1-29

TH-V70

Pin No.

120 121 122 123 124 125 126

127 - 130

131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148

149 - 151

152 153 154 155 156 157

160,161

162 163

164 - 166

167,168

169 170 171 174 175 176

Symbol I/O

AD3 AD4 AD5 AD6 TECAPA VDD3 VSS MONI0 - 3 NEJECT NTRYCTL NDASP NCS3FX NCS1FX DA2 DA0 NPDIAG DA1 NIOCS16 INTRQ NDMACK VDD3 VSS IORDI NIORD NIOWR DMARQ HDD15,HDD0,HDD14 VDD18 PO UATASEL VSS VDD3 HDD1,HDD13,HDD2 HDD12,HDD3 VDD3 VSS HDD11,HDD4,HDD10 HDD5,HDD9 VDD3 VSS HDD6,HDD8,HDD7 VDDH NRESET MASTER

Function

I

RF envelope input

I

DVD laser current control terminal

I

Tracking drive IC input offset

I

CD laser current control terminal

-

Not connect

-

Power supply (3.3V)

-

Ground

O

Internal goods title monitor (Connect to TP306 - TP309)

I

Eject detection

I

Tray close detection

I/O

ATAPI drive active / Slave connection I/O

I

ATAPI host chip select

I

ATAPI host chip select

I/O

ATAPI host address

I/O

ATAPI host address

I/O

ATAPI slave master diagnosis input

I/O

ATAPI host address

-

ATAPI output of selection of host data bus width (Not connect)

O

ATAPI host interruption output

I

ATAPI host DMA response

-

Power supply (3.3V)

-

Ground

-

ATAPI host ready output (Not connect)

I

ATAPI host read

I/O

ATAPI host write

-

ATAPI host DMA request (Not connect)

I/O

ATAPI host data 15,0,14

-

Power supply (1.8V)

-

Connect to ground

I

Connect to VSS

-

Ground

-

Power supply (3.3V)

I/O

ATAPI data 1,13,2

I/O

ATAPI data 12,3

-

Power supply (3.3V)

-

Ground

I/O

ATAPI data 11,4,10

I/O

ATAPI data 5,9

-

Power supply (3.3V)

-

Ground

I/O

ATAPI data 6,8,7

-

Reference power supply for ATAPI (5.0V)

I

ATAPI host reset

I/O

ATAPI master / Slave selection

1-30

TC9446F-025 (IC403) : DSP

1.Terminal layout

80 51

81

50

TH-V70

100

1 30

2. Pin function

Pin No.

1

RST

2

MIMD

3

MICS

4

MILP

5

MIDIO

6

MICK

7

MIACK

8

F10

9

F11

10

F12

11

F13

12

IRQ

13

VSS

14

LRCKA

15

BCKA

16

SDO0

17

SDO1

18

SDO2

19

SDO3

20

LRCKB

21

BCKB

22

SDI0

23

SDI1

24

VDD

25

LRCKOA

26

BCKOA

27

TEST0

28

TEST1

29

LRCKOB

30

BCKOB

31

TXO

32

TEST2

33

TEST2

34

RX

35

VSS

36

TSTSUB0

37

FCONT

38

TSTSUB1

39

TSTSUB2

40

PDO

41

VDDA

31

Symbol

I/O

I

Reset signal input terminal (L: reset, H: normal operation)

I

Mode select input for MCU interface (L: serial, H: IIC bus)

I

Chip select input for MCU interface

I

Latch pulse input for MCU interface

I/O

Data input and output for MCU interface

I

Clock input for MCU interface

O

Acknowledge output for MCU interface

I

Flag input 0

I

Flag input 1

I

Flag input 2

I

Flag input 3

I

Interruption input

-

Digital ground

I

LR clock input-A for audio interface

I

Bit clock input-A for audio interface

O

Data output-0 for audio interface

O

Data output-1 for audio interface

O

Data output-2 for audio interface

O

Data output-3 for audio interface (Not connect)

I

LR clock input-B for audio interface

I

Bit clock input-B for audio interface

I

Data input-0 for audio interface

I

Data input-1 for audio interface

-

Digital power supply

O

LR clock output-A for audio interface

O

Bit clock output-A for audio interface

I

Test input-0 (L: test, H: normal operation)

I

Test input-1 (L: test, H: normal operation)

O

LR clock output-B for audio interface (Not connect)

O

Bit clock output-B for audio interface (Not connect)

O

SPDIF output

I

Test input-2 (L: test, H: normal operation)

I

Test input-3 (L: test, H: normal operation)

I

SPDIF input

-

Digital ground

I

Test sub input-0 (L: test, H: normal operation)

O

Frequency control output for VCO circuit

I

Test sub input-1 (L: test, H: normal operation)

I

Test sub input-2 (L: test, H: normal operation)

O

Phase detect signal output

-

Analog power supply

Function

1-31

TH-V70

Pin No.

42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90

PLON AMPI AMPO CKI VSSA CKO LOCK VSS WR OE CE VDD IO7 IO6 IO5 IO4 IO3 IO2 IO1 IO0 VSS AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7 VDD AD8 AD9 AD10 AD11 AD12 AD13 AD14 AD15 AD16 VSS PO0 PO1 PO2 PO3 PO4 PO5 PO6 PO7 VDDDL

FunctionI/OSymbol

I

Clock selection input (L: external clock, H: VCO clock)

I

Amplifier input for low pass filter

O

Amplifier output for low pass filter

I

External clock input

-

Analog ground

O

DIR clock output

O

VCO lock output

-

Digital ground

O

Write signal output for external SRAM

O

Enable signal output for external SRAM

O

Chip enable signal output for external SRAM

-

Digital power supply

I/O

Data I/O-7 for external SRAM

I/O

Data I/O-6 for external SRAM

I/O

Data I/O-5 for external SRAM

I/O

Data I/O-4 for external SRAM

I/O

Data I/O-3 for external SRAM

I/O

Data I/O-2 for external SRAM

I/O

Data I/O-1 for external SRAM

I/O

Data I/O-0 for external SRAM

-

Digital ground

O

Address output-0 for external SRAM

O

Address output-1 for external SRAM

O

Address output-2 for external SRAM

O

Address output-3 for external SRAM

O

Address output-4 for external SRAM

O

Address output-5 for external SRAM

O

Address output-6 for external SRAM

O

Address output-7 for external SRAM

-

Digital power supply

O

Address output-8 for external SRAM

O

Address output-9 for external SRAM

O

Address output-10 for external SRAM

O

Address output-11 for external SRAM

O

Address output-12 for external SRAM

O

Address output-13 for external SRAM

O

Address output-14 for external SRAM

O

Address output-15 for external SRAM

O

Address output-16 for external SRAM

-

Digital ground

O

General output port-0

O

General output port-1

O

General output port-2

O

General output port-3

O

General output port-4

O

General output port-5

O

General output port-6

O

General output port-7

-

Power supply for DLL circuit

1-32

TH-V70

Pin No.

91 92 93

LPFO DLON DLCKS

O

Low pass filter output for DLL circuit

I

DLCKS pin DLON pin DLL clock setting

I

"L" "L" SCKI input (DLL = off) "L" "H" 4th times of XI clock "H" "L" 3rd times of XI clock

"H" "H" 6th times of XI clock 94 95 96 97 98 99

100

SCKO VSSDL SCKI VSSX XO XI VDDX

O

ASP clock output (Not connect)

-

Ground for DLL circuit

I

External system clock input

-

Ground for crystal oscillator

O

Crystal oscillator output

I

Crystal oscillator input

-

Digital power supply

74LCX373MTC (IC512,IC513) : Octal D-type latch

1. Terminal layout 2. Truth table

1OE 2Q0 3D0 4D1 5Q1 6Q2 7 8D3 9Q3

10GND

3. Block diagram

D0

3

D

(TOP VIEW)

D1 4

D

20

VCC

19

Q7

18

D7

17

D6

16

Q6

15

Q5

14D2

D5

13

D4

12

Q4

11

LE

D2

7

D3

8

D

D4

13

D

INPUTS OUTPUT

OE

LE

H

X

L

H

L

H

X: Don't care

Z: High impedance

Qn: Q outputs are latched at the time when the LE input

is taken to a low logic level.

D5

14

D6

17

D

FunctionI/OSymbol

D X X

L

H

D7

18

D

Y Z

Qn

L

H

OE

Q

11

LE

1

L

Q

L

2

Q0

Q

L

5

Q1

Q

L

6

Q2

Q

L

9

12

Q3

Q4

Q

L

15

Q5

Q

L

16

Q6

Q

L

19

Q7

1-33

TH-V70

NDV8601VWA-BB (IC501) : DVD on a chip processor

1.Terminal layout

240 181

1

180

60

61 120

2. Pin function

Pin No.

1

Vddio

2,3

7 - 9

12,13

15,16

20,21

25,26

28,29

32,33

45,46

50 - 52

4 5 6

10 11

14

17 18 19

22 23 24

27

30 31

34 35 36 37 38 39 40 41 42 43 44

47 48 49

53

MD10,MD11 Vdd MD12 Vssio MD13 - MD15 Vddio DQM1 MA9,MA8 Vssio MA7,MA6 Vss MA5 Vddio MA4,MA3 MCLK Vssio CKE MA2,MA1 Vddio MA0,MA10 MA11 Vssio MA12,MA13 Vdd CS0Vddio RASCASWEVssio DQM0 DQM2 MD16 Vddio MD17,MD18 Vss MD19 Vssio MD20 - MD22 Vddio

121

Symbol

FunctionI/O

-

Power supply (3.3V)

I/O

SDRAM data bus

-

Power supply (1.8V)

I/O

SDRAM data bus

-

Ground

I/O

SDRAM data bus

-

Power supply (3.3V)

O

SDRAM data byte enable

O

SDRAM address bus

-

Ground

O

SDRAM address bus

-

Ground

O

SDRAM address bus

-

Power supply (3.3V)

O

SDRAM address bus

O

SDRAM clock

-

Ground

O

SDRAM clock enable

O

SDRAM address bus

-

Power supply (3.3V)

O

SDRAM address bus

-

Not connect (SDRAM address bus)

-

Ground

O

SDRAM address bus, reserved for pin compatibility with 63-Mb SDRAM

-

Power supply (1.8V)

O

SDRAM primary bank chip select

-

Power supply (3.3V)

O

SDRAM command bit

O

SDRAM command bit

O

SDRAM command bit

-

Ground

O

SDRAM data byte enable

O

SDRAM data byte enable

I/O

SDRAM data bus

-

Power supply (3.3V)

I/O

SDRAM data bus

-

Ground

I/O

SDRAM data bus

-

Ground

I/O

SDRAM data bus

-

Power supply (3.3V)

1-34

TH-V70

Pin No.

54 - 56

57

58 - 61

62

63,64

65 66 67 68 69 70 71

72

73

74

75 76

77 78

79 80 81

82 83

84

85 86 87 88 89 90

91 92 93 94 95 96 97 98 99

Symbol MD23 - MD25 Vssio MD26 - MD29 Vddio MD30,MD31 DQM3 CS1Vsso SPDIF Vssio AIN AOUT3

AOUT2

AOUT1

AOUT0

Vddio PCMCLK

Vdd ACLK

LRCLK SRST RSTP

Vssio RXD1

SSPIN1

Vss SSPOUT1 SSPCLK1 SSPCLK0 Vdd SSPIN0

Vddio SSPOUT0 TXD0 RXD0 CTS0RTS0Vssio CXI CXO

FunctionI/O

I/O

SDRAM data bus

-

Ground

I/O

SDRAM data bus

-

Power supply (3.3V)

I/O

SDRAM data bus

O

SDRAM data byte enable

-

Not connect (SDRAM extension bank chip select)

-

Ground

O

S/PDIF digital audio output

-

Ground

I

Digital audio input for digital micro; can be used as GPIO

O

Serial audio output data to audio DAC for left and right channels for down-mixed stereo; can be used as GPIO

O

Serial audio output data to audio DAC for surround left and right channels; can be used as GPIO

O

Serial audio output data to audio DAC for center and LFE channels; can be used as GPIO

O

Serial audio output data to audio DAC for left and right channels; can be used as GPIO

-

Power supply (3.3V)

-

Not connect (Audio DAC PCM sampling clock frequency, common clock for DACs and ADC; can be used as GPIO)

-

Power supply (1.8V)

O

Audio interface serial data clock, common clock for DACs and analog-to digital converter (ADC)

O

Left/Right channel clock, common clock for DACs and ADC

O

Active low RESET signal for peripheral reset

I

RESET_Power from system, used to reset frequency synthesizer and rest of chip

-

Ground

I

UART1 serial data input from external serial device, used for IR receive; can be used as GPIO

I/O

SSP1 data in or 16X clock for USART function in UART1; can be used as GPIO

-

Ground

I/O

SSP1 data out or UART1 data-terminal-ready signal; can be used as GPIO

I/O

SSP1 clock or UART1 clear-to-send signal; can be used as GPIO

I/O

SSP0 clock or request-to-send function in UART1; can be used as GPIO

-

Power supply (1.8V)

I/O

SSP0 data in or 16X clock for USART function in UART0; can be used as GPIO

-

Power supply (3.3V)

I/O

SSP0 data out or UART0 data-terminal-ready signal; can be used as GPIO

I/O

UART0 serial data output to an external serial device; can be used as GPIO

I

UART0 serial data input from external serial device; can be used as GPIO

I/O

UART0 clear-to-send signal; can be used as GPIO

I/O

UART0 request-to-send signal; can be used as GPIO

-

Ground

I

Crystal input pin for on-chip oscillator or system input clock

-

Not connect (Crystal output pin for on-chip oscillator)

1-35

TH-V70

Pin No.

100 101 102 103 104 105 106 107 108 109 110

111

112

113 114

115 116 117 118 119 120 121 122 123

124

125

126 - 131

132

133,134

135

136 - 139

140

141 - 144

145 146 147

148 - 153

154 155 156

157,158

159 160 161

Symbol OSCVss OSCVdd MVCKVdd SCEN MVCKVss ACLKVss SCMD ACLKVdd Vdddak Vssdac Cr/R

IOM

C/Cb/B

Vaa3 Y/G

Vssa VREF Vaa CVBS/C RSET COMP Vss VCLK VSYNC

HSYNC

Vddio VIO7 - VIO2 Vssio VIO1,VIO0 Vdd AD31 - AD28 Vddio AD27 - AD24 PWE3AD23 Vssio AD22 - AD17 Vddio AD16 PWE2AD15,AD14 Vdd SCLK ACK

FunctionI/O

-

Oscillator ground

-

Oscillator power supply (1.8V)

-

Main and video clock PLL power supply (3.3V)

I

Scan chain test enable

-

Main and video clock PLL ground

-

Audio clock PLL ground

I

Scan chain test mode

-

Audio clock PLL power supply (3.3V)

-

DAC digital power supply (1.8V)

-

DAC digital ground

O

Video DAC3 output (A second composite video; Cr output for composite, Cr output for component, Red output for SCART

O

Cascaded DAC differential output used to dump current into external resistor for power

O

Video DAC2 output (Chrominance output for NTSC/PAL S-Video; Cb output for component, Blue output for SCART

-

DAC analog power supply (3.3V)

O

Video DAC1 output (Luminance for S-Video and component, G output for SCART)

-

DAC analog ground

-

Not connect (Input voltage reference (1.2V typical) for output DACs)

-

Connect to power supply (1.8V)

O

Video DAC output (Composite video; Chrominance output for S-Video)

O

Current setting resistor of output DACs

O

Compensation capacitor connection

-

Ground

-

Not connect (VCLK input/output for video I/O port function

-

Not connect (Bi-directional HSYNC signal for devices that do not use end active video/start active video (EAV/SAV) codes; can be used as GPIO)

-

Not connect (Bi-directional VSYNC signal for devices that do not use end active video/start active video (EAV/SAV) codes; can be used as GPIO)

-

Power supply (3.3V)

-

Not connect (Bi-directional digital video port data bus; can be used as GPIO)

-

Ground

-

Not connect (Bi-directional digital video port data bus; can be used as GPIO)

-

Power supply (1.8V)

I/O

P multiplexed address/data bus

-

Power supply (3.3V)

I/O

P multiplexed address/data bus

I/O

Byte write enable for FLASH, EEPROM, SRAM or peripherals

I/O

P multiplexed address/data bus

-

Ground

I/O

P multiplexed address/data bus

-

Power supply (3.3V)

I/O

P multiplexed address/data bus

I/O

Byte write enable for FLASH, EEPROM,SRAM or peripherals

I/O

P multiplexed address/data bus

-

Power supply (1.8V)

O

External bus clock used for programmable host bus peripherals

I/O

Programmable WAIT-/ACK-/RDY- control

1-36

TH-V70

Pin No.

162

163 - 168

169 170 171

172 - 176

177

178 - 180

181 182 183

184 - 187

188 189 190 191 192 193

194,195

197 - 200

202,203

205 - 209

211 196 201 204 210 212 213 214 215 216 217 218

219 - 223

224

225,226

227 228 229 230

231,232

233

234 - 236

237

238 - 240

Symbol Vssio AD13 - AD8 Vddio PWE1Vss AD7 - AD3 Vssio AD2 - AD0 Vddio PWE0ALE LA0 - LA3 Vssio RDLHLDA LHLD Vdd PCS0

XIO1,XIO2 XIO3 - XIO6 XIO7,XIO8 XIO9 - XIO13 XIO14 Vddio Vss Vssio Vddio Vdd DSYNC DREQ DCLK DSTB DVD0 Vssio DVD1 - DVD5 Vddio DVD6,DVD7 MD0 Vssio MD1 Vss MD2,MD3 Vddio MD4 - MD6 Vssio MD7 - MD9

FunctionI/O

-

Ground

I/O

P multiplexed address/data bus

-

Power supply (3.3V)

I/O

Byte write enable for FLASH, EEPROM,SRAM or peripherals

-

Ground

I/O

P multiplexed address/data bus

-

Ground

I/O

P multiplexed address/data bus

-

Power supply (3.3V)

I/O

Byte write enable for FLASH, EEPROM,SRAM or peripherals

I/O

Address latch enable

I/O

Latched address [3:0]

-

Ground

I/O

Read

O

Bus hold acknowledge in slave mode

I

Bus hold request from external master in slave mode

-

Power supply (1.8V)

O

Peripheral chip select 0, generally used for enabling the program store ROM/FLASH

I/O

Programmable general purpose external input/output (XIO) also used as peripheral chip select, interrupt, Pulse Width Modulator (PWM) output and other system signals

-

Power supply (3.3V)

-

Ground

-

Ground

-

Power supply (3.3V)

-

Power supply (1.8V)

I

DVD parallel mode Sector Sync

O

DVD parallel mode Data Request

I

Data sampling clock

I

Parallel mode Data Valid, serial mode left/right clock

I

DVD drive parallel data port

-

Ground

I

DVD drive parallel data port

-

Power supply (3.3V)

I

DVD drive parallel data port

I/O

SDRAM data bus

-

Ground

I/O

SDRAM data bus

-

Ground

I/O

SDRAM data bus

-

Power supply (3.3V)

I/O

SDRAM data bus

-

Ground

I/O

SDRAM data bus

1-37

TH-V70

1. Terminal layout

UPD784215AGC167 (IC406) : DSP micom

1

25

75

51

100 76

26 50

1 - 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

27 - 32

33

34,35

36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

51,52

53

54 - 63

2. Pin function

-

VDD

X2 X1

VSS

XT2 XT1

RESET

AUTODATA

LOCK

DIGITAL0

DSP FORMAT

DSP CHANNEL

PARITY_ERR

RESET IN

AVDD

AV REF0

-

FILTER SELECT

-

AVSS

-

Rx Tx

-

I

O DSP_CLK DSP_RDY

-

MIDIO_IN

MIDIO_OUT

MICK MICS

MILP

MIACK

-

DSP_RST

-

O

I

-

I

O

I I I I I I

-

I

-

I

O

O O O O

-

I O O O O

I

-

O

-

Not connect Power supply OSC connect pin OSC connect pin Ground Not connect Not connect Reset input Data request signal VCO lock input Digital data input DSP format status signal DSP channel status signal Data error output signal Reset signal input Analog power supply Connect to ground Connect to ground Filter selection Connect to ground Ground Not connect Connect to VDD Digital signal input Digital signal output Not connect DSP control signal DSP status signal DSP clock control DSP ready signal Not connect Data input for MCU interface Data output for MCU interface Clock output for MCU interface Chip select output for MCU interface Latch pulse output for MCU interface Acknowledge input for MCU interface Not connect DSP reset signal Not connect

Pin No.

Symbol

Function

I/O

1-38

TH-V70

Pin No.

64 65 66 67 68

69,70

71 72

73 - 80

81 82 83 84 85 86 87 88 89 90 91 92 93 94

95 - 100

Symbol

CODEC_D-OUT

CODEC_D-IN

CODEC_CLK

CODEC_CS

CODEC_XTS

-

PD

GND

-

VDD 3D-ON 3D-ON

ANA/T.TONE

LFE.MIX

-

D-OUT_MUTE

S.MUTE

ASW1 ASW2 ASW3 ASW4

TEST

-

I/O

O

CO decoder digital data output

I

CO decoder digital data input (Not connect)

O

CO decoder clock signal

O

CO decoder chip select signal

-

Not connect

-

Not connect

O

Power down and Reset in

-

Ground

-

Not connect

-

Power supply

-

Not connect

-

Not connect

O

Analog test tone output

-

Not connect

-

Not connect

O

Digital out mute output

O

System mute output

-

Not connect

O

Optical/Coaxial switching

O

Optical/Coaxial switching

-

Not connect

-

Not connect

I

Test pin

-

Not connect

Function

MM1563DF (IC407) : Regulator

1. Terminal layout

756

(TOP VIEW)

1

234

3. Pin function Pin No. Symbol Function

Vout

1 2

GND

3 4

Cont

5

Output pin

NC

Not connect Ground

Cn

Noise decrease pin Control pin CONT Output H ON L OFF

6 7

Sub

Vin

Substrate pin, The 6pin must be connected to GND. Input pin

2. Block diagram

GND

Vin

Cont

Vout

7

Bias

5

Thermal

shutdown

3

Driver

Current

limiter

Reference

4

Cn

1

1-39

TH-V70

MN101C35DKB (IC701) : FL driver microcomputer

1. Terminal layout

100 76

1

75

25

26 50

51

2. Pin function Pin No. Symbol I/O Function

1 2 3 4 5

6,7

8 9

10

11,12

13

14 - 23

24 25 26 27 28 29 30 31 32

33 - 38

39 40

41 - 46

47

48 - 59

60

61 62 - 64 65 - 99

100

NC DATAIN CLOCK NC INITIAL NC B5V OSC2 OSC1 GND NC GND VREF+ NC RESET PLED-HO KEYLED-HO PLED.VE KEYLED_VE REMOCON_HO NC GND PLED_DIM LED_DIM NC G1 G2 - G13 G14 Q15

S1 - S35

-VPP

-

Not connect

I

FL driver communication data input/output

I

FL driver communication clock input

-

Not connect

I

FL driver communication CS(INITIAL)

-

Not connect

-

VDD(B5V)

O

8MHz main clock output

I

8MHz main clock input

-

Ground

-

Not connect

-

Ground

-

Reference voltage

-

Not connect

I

FL reset input

O

POWER LED switching signal

O

KEY LED switching signal

O

POWER LED switching signal

O

KEY LED switching signal

O

Remote control receiver switching signal

-

Not connect

-

Ground

O

POWER LED DIMMER switching signal

O

KEY LED DIMMER switching signal

-

Not connect

O

Grid signal outputs

O

Grid signal outputs

O

Grid signal outputs

-

Not connect

-

Not connect

O

Segment signal outputs

-

VPP

NC7SZ125P5 (IC523) : Bus buffer gate with 3-state output

1. Terminal layout & Block diagram

VCC Y

54

1

23

OE A GND

2. Truth table INPUTS OUTPUT

OE

X: Don't care

Z: High impedance

B

L

H

L

H

X

Y H

L Z

1-40

AK93C65AF (IC510) : EEPROM

1. Terminal layout

PE

VCC

CS

SK

3. Block diagram

DI

1

2

3

4

8 PIN SOP

INSTRUCTION

REGISTER

8

GND

7

6

5

NC

DO

DI

2. Pin function Pin No. Symbol Function

1

PE

Not connect, Program enable (With built-in pull-up resistor)

DATA

VCC CS SK DI DO GND NC

Power supply Chip selection Cereal clock input Cereal data input Cereal data output Ground Not connect

16

R/W AMPS

AND

AUTO ERASE

DO

16

2 3 4 5 6 7 8

NOTE : The pull-up resistor of the PE pin is about 2.5M (VCC=5V)

REGISTER

EEPROM

TH-V70

ADD.

BUFFERS

VREF

CS

SK

PE

INSTRUCTION

DECODE,

CONTROL

AND

CLOCK

GENERATION

W24L010AJ-12/LP61L1024S-12-X (IC404) : SDRAM

1. Terminal layout 2. Pin function

NC A16 A14 A12

A7 A6 A5 A4 A3 A2 A1

A0 I/O1 I/O2 I/O3

VSS

10 11 12 13 14 15 16

1 2 3 4 5 6 7 8 9

32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17

VDD A15 NC(CE2) WE A13 A8 A9 A11 OE A10 CS1 I/O8 I/O7 I/O6 I/O5 I/O4

Symbol Function

A0~A16

I/O1~I/O8

CS1

WE

OE

VDD

VSS

Address inputs Data inputs/outputs Chip select inputs Write enable input Output enable input Power supply Ground

DECODER

VPP SW

GENERATOR

4096bit

256 x 16

VPP

1-41

TH-V70

AK4527BVQP (IC401) : A/D,D/A Converter

1.Terminal layout

2.Block diagram

LOOP1

CDTI

CCLK

CSN

P/S

MCLK

DZF1

AVSS

AVDD

VREFH

SDOS I2C SMUTE BICK LRCK SDTI1 SDTI2 SDTI3 SDTO D.AU X DFS

4443424140393837363534

1 2 3 4 5 6 7 8 9 10 11

1213141516171819202122

NC

DZFE

TVDD

DVDD

DVSS

PDN

TSTNCADIF

VCOM

CAD1

CAD0

33

DZF2

32

RIN+

31

RIN-

30

LIN+

29

LIN-

28

ROUT1

27

LOUT1

26

ROUT2

25

LOUT2

24

ROUT3

23

LOUT3

LIN+ LIN-

RIN+ RIN-

LOUT1

ROUT1

LOUT2

ROUT2

LOUT3

ROUT3

LPF

Block Diagram (DIR and AC-3) DSP are external parts)

3. Pin function

Pin No. Symbol I/O Function

1

SDOS

SDTO Source select pin

I

"L" : Internal ADC output, "H" : DAUX input ORed with serial control register if P/S="L".

2

I2C

MCKO Clock frequency select pin

I

"L" : MCLK, "H" : MCLK/2. ORed with serial control register if P/S= "L". 3 4 5 6 7 8 9

10 11

SMUTE

BICK

LRCK SDTI1 SDTI2 SDTI3 SDTO

D.AUX

DFS

Connect to GND

I

Audio serial data clock pin

I

Input/Output channel clock pin

I/O

DAC1 Audio serial data input pin

I

DAC2 Audio serial data input pin

I

DAC3 Audio serial data input pin

I

Audio serial data output pin

O

AUX Audio serial data input pin

I

Double speed sampling mode pin

I

"L" : Normal speed, "H" : Double speed, the ADC is powered down. ORed with serial control register if P/S="L".

12

NC

De-emphasis pin (Not connect)

ORed with serial control register if P/S="L"

13

DZFE

De-emphasis Pin

I

ORed with serial control register if P/S="L"

14 15 16 17

TVDD DVDD

DVSS

PDN

Master clock output pin

O

Digital power supply pin

Digital ground pin

Power-down & Reset pin

I

When "L", the AK4527 is powered-down and the control registers are reset to default state. If the state of CAD0-1 changes, then the AK4527 must be reset by PDN.

ADC

DAC

HPF

DATT

Audio I/F

LRCK BICK

MCLK

SDOUT

SDIN1

SDIN2

SDIN3

D.AU X

Format

Converter

SDOS

SDTO

SDTI1

SDTI2

SDTI3

1-42

Pin No. Symbol I/O Function

18

19 20 21

22

23 24 25 26 27 28 29 30 31 32 33 34

35 36 37 38 39 40

41 42 43 44

TST

NC

ADIF

CAD1

CAD0

LOUT3

ROUT3

LOUT2

ROUT2

LOUT1

ROUT1

LINLIN+ RIN-

RIN+

DZF2

VCOM

VREFH

AVDD AVSS DZF1 MCKI

P/S

CSN

CCLK

CDTI

LOOP1

X'tal oscillator Select/Test mode pin

I

"H" : X'tal Oscillator selected "L" : External clock source selected Input clock select 1 pin (Not connect)

I

Input clock select 0 pin

I

Chip address pin

I

Used during the serial control mode. Chip address pin

I

Used during the serial control mode. Lch #3 analog output pin

O

Rch #3 analog output pin

O

Lch #2 analog output pin

O

Rch #2 analog output pin

O

Lch #2 analog output pin

O

Rch #1 analog output pin

O

Lch analog negative Input Pin

I

Lch analog positive Input Pin

I

Rch analog negative Input Pin

I

Rch analog positive Input Pin

I

Negative voltage reference Input pin, AVSS

I

Common voltage output pin,AVDD/2

O

Large external capacitor around 2.2uF is used to reduce power-supply noise Positive voltage reference input pin,AVDD

I

Analog power supply pin

Analog ground pin

X'tal input pin (Not connect)

I

External master clock input pin if XTS="L"

I

Parallel/Serial select pin

I

"L" : Serial control mode, "H" : Parallel control mode Chip select pin in serial mode

I

Control data clock pin in serial mode

I

Control data input pin in serial mode

I

Loop back mode pin in parallel mode

I

Enable all 3 DAC channels to be input from SDTII.

TH-V70

1-43

TH-V70

BA15218F (IC510,IC511,IC531,IC561,IC581,IC591) : Dual operational amplifier

1. Terminal layout & Block diagram

OUT1

IN1-

IN1+

VEE

1

2

1

3

4

8

VCC

7

OUT2

6

2

IN2-

5

IN2+

BA15218N (IC103,IC104,IC108,IC109,IC110,IC201,IC202) : Dual operational amplifier

1. Terminal layout & Block diagram

BA15218N

+

12

-

1

2

OUT1

-IN13+IN14VEE5+IN26-IN27OUT28VCC

+

-

BA3121 (IC100,IC101,IC102) : Ground isolation amplifier

1. Terminal layout

1

OUT1

2

VM1

3

IN1

8

7

6

VCC

OUT2

VM2

2. Block diagram

3IN1

2VM1

VCC

8

R

1

6

OUT1

VM2

R

RR

GND

4

5

IN2

BU4066BCF (IC151) : Quad analog witch

1. Terminal layout & Block diagram

I/O 1

O/I 1

O/I 2

I/O 2

C2

C3

VSS

1

2

3

4

5

6

7

14

13

12

11

10

VDD

C1

C4

I/O 4

O/I 4

9

O/I 3

8

I/O 3

5IN2

R

RR

7 OUT2

4 GND

1-44

BA5983FM (IC201) : 4-channel driver

1. Terminal layout & Block diagram 2. Pin function

1

2

3

10k 10k

4

5

6

7

8

9

Vcc

10

10k

11

12

10k

13

14

10k 10k

10k

10k 10k

10k 20k

STAND BY CH1/2/3

10k

Level Shift

10k

Level Shift

10k

20k

STAND BY CH4

10k

Level Shift

10k

Level Shift

10k

Vcc

10k

Pin No. Symbol I/O Function

28

27

26

25

24

23

22

21

20

19

18

17

16

15

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28

BIASIN OPIN1+ OPIN1OPOUT1 OPIN2+ OPIN2OPOUT2 GND STBY1 POWVCC1 VO2VO2+ VO1VO1+ VO4+ VO4VO3+ VO3POWVCC2 STBY2 GND OPOUT3 OPIN3OPIN3+ OPOUT4 OPIN4OPIN4+ PREVCC

Input for Bias-amplifier

I

Non inverting input for CH1 OP-AMP

I

Inverting input for CH1 OP-AMP

I

Output for CH1 OP-AMP

O

Non inverting input for CH2 OP-AMP

I

Inverting input for CH2 OP-AMP

I

Output for CH2 OP-AMP

O

Substrate ground

Input for CH1/2/3 stand by control

I

Vcc for CH1/2 power block

Inverted output of CH2

O

Non inverted outpur of CH2

O

Inverted output of CH1

O

Non inverted outpur of CH1

O

Non inverted output of CH4

O

Inverted output of CH4

O

Non inverted output of CH3

O

Inverted output of CH3

O

Vcc for CH3/4 power block

Input for Ch4 stand by control

I

Substrate ground

Output for CH3 OP-AMP

O

Inverting input for CH3 OP-AMP

I

Non inverting input for CH3 OP-AMP

I

Output for CH4 OP-AMP

O

Inverting input for CH4 OP-AMP

I

Non inverting input for CH4 OP-AMP

I

Vcc for pre block

-

TH-V70

BD4740G (IC803) : Reset

1. Terminal layout 2. Block diagram

54

VCC RST

NC SUB GND

123

Vref

TA8409S (IC108) : Motor driver

1. Terminal layout 2. Truth table

INPUT

IN1

IN2

0

1

1 234 5678 9

VS

VCC

OUT2

NC

GND

OUT1

VREF

IN2

IN1

0

1

VCC

5

4

3

GND

OUTPUT MODE

OUT1

OUT2

MOTOR

STOP

H

L L

L

H

L

CW/CCW CCW/CW

BRAKE

RST

1-45

TH-V70

BA6664FM (IC251) : Motor driver

1. Terminal layout & Block diagram

FIN

PS

TORQE

Vcc

L

T

SENSE

AMP.

FIN

DRIVER

1

GAIN

SWITCH

TSD

CURRENT

SENSE AMP.

GAIN

CONTROL

2

34567

2. Pin function

Pin No. Symbol Function

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28

29,30

NC A3 NC A2 NC NC A1 GND H1+ H1H2+ H2H3+ H3VH BR CNF SB FG2 FR ECR EC PS FG VCC GSW VM RNF FIN

Not connect Output terminal Not connect Output terminal Not connect Not connect Output terminal Ground terminal Hall signal input terminal Hall signal input terminal Hall signal input terminal Hall signal input terminal Hall signal input terminal Hall signal input terminal Hall bias terminal Brake mode switching terminal (Not connect) Connecting terminal for phase compensating capacitor Short brake terminal FG3-phase synthesizing signal output terminal (Not connect) Rotation detecting terminal (Not connect) Reference terminal for output voltage control Output terminal for output voltage control Power save terminal FG signal output terminal Power supply terminal Gain switching terminal Power supply terminal for motor Connecting terminal for output current detecting resistor Ground

21 20 19 18 17 16 1528 27 26 25 24 23 22

Vcc

HALL

AMP.

8910 11 12 13 14

SHORT BRAKE

BRAKE

MODE

Q

R

D

CK

HALL

BIAS

1-46

CY24203SC (IC502) : Clock generator

1. Terminal layout

1

XIN

2

VDD

3

VCXO

4

VSS

8

XOUT

7

27M

6

13.5M

5

16.9344M

2. Block diagram

XIN

XOUT

VCXO

OSC

ADC

8 bit

GP1FA351RZ (IC409) : Fiber optic receiver

1. Terminal layout

2. Block diagram

AMP

LM1117MP1.8 (IC511) : Regulator

1. Terminal layout 2. Block diagram

/Q

7 bit

PLL

AMP

Comp & Output circuit

/P

11bit

VCO

VDD VSS

VCC

Vout

GND

OUTPUT

DIVIDERS

7 bit

/2

TH-V70

27M

16.9344M

13.5M

V

IN

Top view

Thermal

Limit

GND (FIXED OUTPUT)

ADJ.(ADJUSTABLE OUTPUT)

OUTPUT

ADJ/GND

INPUT

S-93C66AFJ (IC451) : Serial EEPROM

1. Terminal layout 3. Block diagram

PE

1

VCC

CS

SK

2

3

4

Top view

2. Pin function Pin No. Symbol Function

1 2 3 4 5 6 7 8

PE

VCC

CS SK

DI

DO

GND

NC

8

GND

7

DO

6

DI

5

Not connect Power supply Chip select input Serial clock input Serial data input Serial data output Ground Not connect

DI

CS

SK

Memory array

Data register

Mode decode

Clock generator

Current

Limit

logic

circuit

Substrate

Address decoder

V

OUT

Output buffer

VCC

GND

DO

1-47

TH-V70

K4S643232E-TC60 (IC505) : 512K x 32 bit x 4 banks synchronous DRAM

1. Terminal layout

1

43

3. Pin function Pin No. Symbol Function

1,15,29,43 2,4,5,7,8,10,11, 13,74,76,77,79, 80,82,83,85,31, 33,34,36,37,39, 40,42,45,47,48,

50,51,53,54,56

3,9,35,41,49

55,75,81

6,12,32,38,46

52,78,84

14,21,30,57,

69,70,73

16,71,28,59

24,25 - 27,

60 - 66

44,58,72,86

17

18

19

20

22,23

67

68

86

44

VDD

DQ0 - DQ31

VDDQ

VSSQ

N.C

DQM0 - DQM3

WE

CAS

RAS

CS

BA0,BA1

A10,A0 - A2,

A3 - A9

VSS CKE

CLK

2. Block diagram

LWE

Data Input Register

512K x 32

Column Decoder

Latency & Burst Length

Programming Register

LWCBR

WE DQM

Sense AMP

LDQM

I/O Control

DQi

Output Buffer

CLK

ADD

LCKE

Bank Select

Row Buffer

Refresh Counter

Address Register

LRAS

LCBR

LRAS LCBR LWE

CLK CKE CS

Row Decoder

Col. Buffer

LCAS

Timing Register

RAS CAS

Power for the input buffers and core logic. Data inputs/outputs are multiplexed on the same pins.

Isolated power supply for the output buffers to provide improved noise immunity. Isolated ground for the output buffers to provide improved noise immunity.

This pin is recommended to be left no connection on the device.

Makes data output Hi-Z, t

SHZ

after the clock and masks the output. Blocks data input when DQM active. Enables write operation and row precharge. Latches data in starting from CAS, WE active. Latches column addresses on the positive going edge of the CLK with CAS low. Enables column access. Latches row addresses on the positive going edge of the CLK with RAS low. Enables row access & precharge. Disables or enables device operation by masking or enabling all inputs except CLK, CKE and DQM. Selects bank to be activated during row address latch time. Selects bank for read/write during column address latch time. Row/column addresses are multiplexed on the same pins. Row address : RA0 - RA10, Column address : CA0 - CA

7

Ground for the input buffers and core logic. Masks system clock to freeze operation from the next cycle. CKE should be enabled at least one cycle prior to new command. Disables input buffers for power down mode. Active on the positive going edge to sample all inputs.

1-48

LA73054 (IC601) : Video driver

1. Terminal layout & block diagram

36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19

TH-V70

75

DRIVER

LPF

2Step Amp1

C_OFFSET

DC_CTL

CLAMP

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

75

DRIVER

LPF1

2Step Amp2

Y/C MIX

75

DRIVER

LPF1

2Step Amp3

CLAMP

SYNC

SEP

DRIVER

2Step Amp4

PEDESTAL

CLAMP

75

LPF1LPF2

CLAMP

75

DRIVER

LPF1LPF2 LPF1LPF2

2Step Amp5

PEDESTAL

CLAMP

DRIVER

PEDESTAL

2. Pin function Pin No.

1,24,34

2 3 4 5 6

7,17,20,22

Symbol Function VCC COMPOSITE IN SQUEEZE SW LETTER-BOX SW MUTE1 SW CHROMA IN GND

I/O

Power supply

Composite video signal input (Not connect)

I

Selecting squeeze mode

I

Selecting letter box mode

I

Composite/S signal mute selection

I

Chrominance signal input

I

Ground

-

26,27,29,32

8

9 10 11 12 13 14 15 16 18 19 21 23 25 28 30 31 33 35 36

Y-1 IN YC MIX SW RGB SW Y-2 IN MUTE2 SW LPF SW Cb IN AMP-2 SW Cr IN REG DRIVE-2 SW Cr OUT Cb OUT Y-2 OUT Y-1 OUT C-DC OUT CHROMA OUT COMPOSITE OUT DRIVE SW AMP-1 SW

Brightness signal input

I

Y/C-MIX control

I

Selection of a kind of signal (11pin)

I

Brightness signal input or baseband signal

I

Component signal mute selection

I

Selection of a kind of component LPF

I

Component signal (Cb) input or baseband signal

I

Selecting amplifier gain for component signal

I

Component signal (Cr) input or baseband signal

I

Capacitor terminal for regulator

O

2drive/1drive select for component signal

I

Component signal (Cr) output

O

Component signal (Cb) output

O

Brightness signal output

O

Brightness signal output

O

DC voltage output (Not connect)

O

Chrominance signal output

O

Composite video signal output

O

2drive/1drive select for composite/S signal

I

Selecting amplifier gain for composite/S signal

I

75

2Step Amp6

CLAMP

VCC

REG

1-49

TH-V70

M62446FP (IC153) : 6CH Master volume

1. Terminal layout & Block Diagram

1

-

2

-

AVDD

LFE IN

AGND

RR IN

RL IN

AGND

C IN

AGND

R IN

AGND

L IN

OUTPUT

3

-

PORT

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

tone

volume

tone

MCU

I/F

42

41

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

25

24

23

22

DVDD

CLK

DATA

STB

DGND

AGND

LFE OUT

RR OUT

RL OUT

C OUT

R OUT

L OUT

AVSS

-

2.Pin function

Pin No. Symbol I/O

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15

16,17

18

19~21

22

23,24

25 26 27 28

-

AVDD

LFE IN

AGND

RR IN

RL IN

AGND

C IN

AGND

R IN

AGND

L IN

-

Function

SURROUND control terminal (Not connect)

BASS BOOST control terminal

Input attenuator control terminal

MUTING control terminal

Analog positive power supply terminal

SUB Woofer volume signal input terminal

I

Analog ground terminal

R ch volume signal input terminal for rear speaker

I

L ch volume signal input terminal for rear speaker

I

Analog ground terminal

Center volume signal input terminal

I

Analog ground terminal

R ch volume signal input terminal

I

Analog ground terminal

L ch volume signal input terminal

I

Not connect

Frequency adjustment terminal tone/treble

Frequency adjustment terminal tone/bass

Tone output terminal

Frequency adjustment terminal tone/bass

Frequency adjustment terminal tone/treble

Frequency adjustment terminal tone/bass

L/R volume input terminal

Tone output terminal

-

1-50

TH-V70

Pin No. Symbol I/O

29 30 31 32 33 34 35 36 37 38 39 40 41 42

-

AVSS

L OUT R OUT C OUT

RL OUT

RR OUT

LFE OUT

AGND

DGND

STB

DATA

CLK

DVDD

L/R volume input terminal

Analog negative power supply terminal

L ch output

O

R ch output

O

Center volume signal output terminal

O

L ch volume signal output terminal for rear speaker

O

R ch volume signal output terminal for rear speaker

O

SUB Woofer volume signal output terminal

O

Analog ground terminal

Digital ground terminal

Latch input terminal

I

Volume data input terminal

I

Clock input terminal for data transfer

I

Digital power supply terminal

-

MM1613DN (IC402) : Regulator

1. Terminal layout

54

(TOP VIEW)

1

23

2. Block diagram

Vin

5

Cont

1

Bias

Reference

Function

Driver

Current

limiter

Vout

4

Thermal

GND

2

shutdown

3

Cn

3. Pin function Pin No. Symbol Function

1

Cont

ON/OFF Control pin Cont Vo H ON L OFF Cont pin must be connected with V

2

GND 3 4

Vout

Ground Noise decrease pin, Connecting 0.01uF capacitor can decrease output noise.

Cn

If the noise decrease capacitor is not connected, the pin may be influenced by outside noise.

IN

pin, if it is not used.

Output pin, The capacitor must be connected with output pin more than 1uF.

5

Vin

Input pin The capacitor is required to connect with input pin more than 1uF.

1-51

TH-V70

NJM4580M (IC158,IC159,IC160) : Dual operational amplifier

1. Terminal layout & Block diagram

V+ B OUT B -IN B +IN

8765

B

A

1234

V-A +INA -INA OUT

NJM78M05FA (IC805,IC953) : Regulator

1. Terminal layout

1

23

1.INPUT

2.GND

3.OUTPUT

2. Block diagram

PQ05RD21 (IC951) : Regulator

1. Terminal layout

1

423

2. Block diagram

1

Specific IC

3

1.IN

2.OUT

3.GND

4.CTRL

INPUT

OUTPUT

GND

2

4

RPM6938-SV4 (IC711,IC871) : Remote control receiver

1. Block diagram

3

1

2

1-52

I/V conversion

PD

magnetic shield

AMP

BPF

for trimming circuit

AGC

Detector

Vcc

Comp

22k ohm

VDD

OUT

GND

SST39VF160-7CEK (IC509) : 16 Mbit multi-purpose flash memory

1. Terminal layout

TH-V70

A15 A14 A13 A12 A11 A10

A9 A8

A19

NC

/WE

*/RST

NC NC

*R/B

A18 A17

A7 A6 A5 A4 A3 A2 A1

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

2. Block diagram

Top view

X-Decoder

48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25

A16 */BYTE VSS D15 D7 D14 D6 D13 D5 D12 D4 VCC D11 D3 D10 D2 D9 D1 D8 D0 /OE VSS /CE A0

Super flash memory

Memory Address

3. Pin function

Pin No. Symbol

1 - 9,

16 - 25,48

10,12 - 15,47

11 26

27,46

28

29 - 36, 38 - 45

37

/CE

/OE

/WE

A19 - A0

NC

/WE

/CE

VSS

/OE

D15 - D0

VCC

Address buffer & Latches

Y-Decoder

Control Logic

I/O Buffers and Data Latches

D15 - D0

Function

Address inputs : To provide memory addresses. During Sector-Erase A19 - A11 address lines will select the sector. During Block-Erase, A19 - A15 address line will select the block. No connection : Unconnected pins Write Enable : To control the Write operations Chip Enable : To activate the device when CE# is low Ground Output Enable : To gate the data output buffers Data input/output : To output data during Read cycles and receive input data during write cycles. Data is internally latched during a write cycle. The outputs are in tri-state when OE# or CE# is high. Power supply : To provide power supply voltage (2.7 - 3.6V)

1-53

TH-V70

STK402-030 (IC106) : Power amplifier

2.Block diagram1.Terminal layout

STK402-030

CH1

IN

115

NF

123456789101112131415

STK402-230 (IC107) : Power amplifier

1. Terminal layout

STK402-230

119

2.Block diagram

ch. 1 ch. 2

CH1INCH1

NF

12 456789101112131415

PRE +Vcc

BIAS +VCC

CH1 +VE

CH1

-VE

STK404-130 (IC105) : Power amplifier

2.Block diagram1.Terminal layout

ch. 1 ch. 2

CH1

PRE

-Vcc

+VE

CH1

-VE

SUB

PRE

NC

-VCC GND

BIAS +VCC

+Vcc

CH2

-VE

+VE

CH2 NF

CH2

-VCC GND

+VE

CH2INCH3INCH3

16 17 18 19

CH2

-VE

ch. 3

NF

PRE

-Vcc

CH3 +VE

CH3

-VE

SUB

CH2NFCH2

IN

STK404-130

TR1 TR2

113

PT1

1 2 3 4 5

TR3 TR4

IN1 NF GND BIAS +12V

STR-G6651 (IC901) : Switching regulator

2.Block diagram1.Terminal layout

VIN

4

STR

O.V.P

LATCH

O.S.C

START

REG

T. S. D

12 3 45

R1

R2C1

SUB

Vth(2)

Comp.2

TR6

R4

R5

C2

TR5

D1

R3 R6

6 7 8 9 10 11 12 13

DRIVE

Vth(1)

Comp.1

TR7

TR8

C3

PRE

-Vcc

NC -VCC +VCC -OUT +OUT

D

1

S

2

OCP/FB

5

GND

3

1-54

< MEMO >

TH-V70

1-55

TH-V70

VICTOR COMPANY OF JAPAN, LIMITED

AUDIO & COMMUNICATION BUSINESS DIVISION PERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1,1Chome,Ohwatari-machi,maebashi-city,371-8543,Japan

No.21089

200207

Jvc TH-V70 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Preventing static electricity

Importance administering point on the safety

Disassembly method

Adjustment method

Description of major ICs