JVC NXT-5 Service manual

SERVICE MANUAL

MB744<Rev.001>20105SERVICE MANUAL

NX-T5B, NX-T5E, NX-T5EN,

COMPACT COMPONENT SYSTEM

NX-T5EV, NX-T5EE

CA-NXT5SP-NXT5F SP-NXT5F SP-NXT5W

COPYRIGHT © 2010 Victor Company of Japan, Limited

Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)

TABLE OF CONTENTS

1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

COPYRIGHT © 2010 Victor Company of Japan, Limited

No.MB744<Rev.001>

2010/5

SPECIFICATION

A

Main unit-CA-NXT5

Input/output

HDMI output HDMI OUT

USB terminal USB MEMORY PLAY

Analog audio input AUDIO IN 500 mV/50 kΩ

Digital audio input DIGITAL IN (OPTICAL) -21 dBm to -15 dBm (660 nm±30 nm)

Analog video output VIDEO OUT Color system PAL

Composite video, 1 V(p-p)/75Ω

Tuner

FM tuning range 87.50 MHz - 108.00 MHz

Disc player

Playable disc DVD Video/CD/VCD/SVCD

CD-R/CD-RW (CD/SVCD/VCD/MP3/JPEG/MPEG-1/MPEG-2/DivX format)

DVD-R/-RW (DVD Video/DVDVR/MP3/JPEG/MPEG-1/MPEG-2/DivX format)

+R/+RW (DVD Video/MP3/JPEG/MPEG-1/MPEG-2/DivX format)

Dynamic range 80 dB

Horizontal resolution 500 lines

Wow and flutter Immeasurable

USB

Playable files MP3/JPEG/MPEG-1/MPEG-2/DivX format

USB specification Compatible with USB 2.0 Full Speed

Compatible device Mass storage class

Compatible system FAT16, FAT32

Bus power supply DC 5 V 500 mA

HDMI

Video resolution 576p, 720p, 1080i, 1080p

Output power (HDMI OUT) DC 5 V 55 mA

General

Mass (approx.) 2.3 kg

Dimensions (approx.) Placed vertically A: 240 mm B: 420 mm C: 64 mm D: 70 mm E: 134 mm

Placed horizontally F: 420 mm G: 70 mm H: 240 mm

B

CD

E

Subwoofer-SP-NXT5W

Output power Front 100 W (50 W + 50 W) at 6 Ω (10% THD)

Subwoofer 100 W at 3 Ω (10% THD)

Speaker Bass reflex type 16 cm cone x 1

Power handling capacity 100 W

Frequency range 40 Hz - 150 Hz

Sound pressure level 77 dB/W

· m

1-2 (No.MB744<Rev.001>)

F

G

H

Power requirements AC 230 V , 50 Hz

Power consumption 40 W (at operation of the System)

1.00 W or less (on standby)

Mass (approx.) 9.2 kg

Dimensions (approx.) 231 mm × 393 mm × 370.5 mm (W/H/D)

Speakers-SP-NXT5F

Speaker 1 way bass reflex type 8 cm cone x 1

Impedance 6 Ω

Power handling capacity 50 W

Frequency range 75 Hz - 20 kHz

Sound pressure level 82 dB/W

Mass (approx.) 0.83 kg each

Dimensions (approx.) 100 mm × 240 mm × 128 mm (W/H/D)

Design and specifications are subject to change without notice.

· m

(No.MB744<Rev.001>)1-3

SECTION 1

PRECAUTION

1.1 Safety Precautions

(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 manufacturers 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 reassem­bling.

(5) Leakage shock hazard testing

After reassembling 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, 1,000Ω per volt or more sensitivity
in the following manner. Connect a 1,500Ω 10W resistor
paralleled by a 0.15µF AC-type capacitor between an ex-

posed 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 measure 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.).

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

0.15 F AC TYPE

Place this
probe on

1500 10W

Good earth ground

1.2 Warning

(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.

1.3 Caution

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.

1.4 Critical parts for safety

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. When replacing them, be sure to use the parts of the
same type and rating as specified by the manufacturer.
(This regulation dose not Except the J and C version)

each exposed
metal part.

1-4 (No.MB744<Rev.001>)

1.5 Preventing 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.

1.5.1 Grounding to prevent damage by static electricity

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

(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) Ground yourself

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

(caption)
Anti-static wrist strap

1M

Conductive material
(conductive sheet) or iron palate

(3) Handling the optical pickup

• In order to maintain quality during transport and before installation, both sides of the laser diode on the 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 source can easily
destroy the laser diode.

1.6 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) Cut off the shorted part of the flexible cable using nippers, etc. 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 cable carefully as it may break when subjected to strong force.
(4) I t is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it.

(No.MB744<Rev.001>)1-5

1.7 Important for laser products

1.CLASS 1 LASER PRODUCT

2.CAUTION :

(For U.S.A.) Visible and/or invisible class II laser radiation
when open. Do not stare into beam.
(Others) Visible and/or invisible class 1M laser radiation
when open. Do not view directly with optical instruments.

3.CAUTION : Visible and/or invisible laser radiation when
open and inter lock failed or defeated. Avoid direct
exposure to beam.

4.CAUTION : This laser product uses visible and/or invisible
laser radiation and is equipped with safety switches which
prevent emission of radiation when the drawer is open and
the safety interlocks have failed or are defeated. It is
dangerous to defeat the safety switches.

5.CAUTION : If safety switches malfunction, the laser is able
to function.

6.CAUTION : Use of controls, adjustments or performance of
procedures other than those specified here in may result in
hazardous radiation exposure.

!

Please use enough caution not to

see the beam directly or touch it

in case of an adjustment or operation

check.

REPRODUCTION AND POSITION OF LABELS and PRINT

WARNING LABEL and PRINT

1-6 (No.MB744<Rev.001>)

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.

SECTION 3

DISASSEMBLY

3.1 Main body (Used model: NX-T5E)

3.1.1 Removing the DVD door

(1) Connect the Main unit and Subwoofer.
(2) Power to ON and then open the DVD door.
(3) Slide to front side and pull up the DVD door.

3.1.2 Removing the Top cabinet (See Fig.1,2, 3, 4)

(1) Disconnect the card wire from DVD MPEG board connect-

ed to connector CNC1

(See Fig.1)

(2) Remove the four screws A attaching the Top cabinet. (See

Fig.2)

and CNC5 of the Connect board.

CNC5CNC1

Fig.1

(4) Disconnect the card wire from DVD MPEG board connect-

ed to connector CON401

CON401

3.1.3 Removing the DVD mechanism (See Fig.5)

(1) Remove the four screws C attaching the DVD mechanism.
(2) Remove the two screws D attaching the Connect board.

of the Display board. (See Fig.4)

Fig.4

A

Fig.2

(3) Remove the three screws B attaching the Top cabinet.

(See Fig.3)

B

Fig.3

CC

D

Fig.5

(No.MB744<Rev.001>)1-7

3.1.4 Removing the Display board (See Fig.6)

(1) Remove the six screws E attaching the Display board.
(2) Disconnect the card wire from Key board connected to con-

nector CON402 and CON403 of the Display board.

CON403

E

3.1.6 Removing the USB board (See Fig.9)

(1) Disconnect the connector wire from USB board connected

to connector CON301

(2) Disconnect the card wire from USB board connected to

connector CON201

(3) Remove the two screws G attaching the USB board.

of the Main board.

of the Main board.

E

Fig.6

3.1.5 Removing the DVD MPEG board (See Fig.7, 8)

(1) Remove the two screws F attaching the DVD MPEG board.

(See Fig.7)

CON402

F

Fig.7

(2) Disconnect the card wire from DVD MPEG board connect-

ed to connector SCON1 of the UPGRADE board. (See
Fig.8)

(3) Disconnect the connector wire from DVD VCC board con-

nected to connector SCON2
(See Fig.8)

(4) Disconnect the card wire from Main board connected to

connector CN702

(5) Disconnect the connector wire from Main board connected

to connector CON101 of the DVD MPEG board. (See
Fig.8)

(6) Disconnect the connector wire from USB board connected

to connector CON703
Fig.8)

of the DVD MPEG board. (See Fig.8)

of the DVD MPEG board.

of the DVD MPEG board. (See

SCON1CON703

G

3.1.7 Removing the Main board (See Fig.10, 11, 12)

(1) Remove the two screws H attaching the Main board. (See

Fig.10)

CON301 CON201

Fig.9

H

Fig.10

(2) Remove the three screws J and two screws K attaching the

DC motor. (See Fig.11)

(3) Disconnect the connector wire from DC motor connected to

connector MTCON1

(4) Disconnect he card wire from Tuner pack connected to

connector CON603 of the Main board. (See Fig.11)

of the Main board. (See Fig.11)

SCON2 CN702CON101

1-8 (No.MB744<Rev.001>)

Fig.8

MTCON1

JM

JK

Fig.11

M

CON603

(5) Remove the four screws L attaching the bracket. (See

Fig.12)

L

Fig.12

(6) Remove the three screws M attaching the Main board.

(See Fig.11)

3.2 Subwoofer (Used model: SP-NXT5WE)

3.2.1 Removing the Power amp unit (See Fig.1, 2, 3)

(1) Remove the six screws A attaching the Power amp unit.

(See Fig.1)

A

(3) Pull out the Power amp unit for half way; disconnect the

connector wire from Subwoofer speaker connected to con­nector CON805

3.2.2 Removing the Power cover and Amp cover (See Fig.4,
5, 6, 7)

(1) Remove the five screws C attaching the Cover. (See Fig.4)

of the Power amp board. (See Fig.3)

CN805

Fig.3

A

Fig.1

(2) Remove the three screws B attaching the Power amp unit.

(See Fig.2)

B

C

Fig.4

(2) Remove the three screws D attaching the Cover. (See

Fig.5)

D

Fig.5

(3) Remove the six screws E attaching the Cover. (See Fig.6)

Fig.2

E

Fig.6

(No.MB744<Rev.001>)1-9

(4) Lift up the cover; remove the two screws F attaching the

Cover. (See Fig.7)

Fig.7

3.2.3 Removing the Power board (See Fig.8)

(1) Disconnect the power cord connected to connector CON01

of the Power board.

(2) Disconnect the connector wires from Amp board connect-

ed to connectors CON901 and CON902 of the Power
board.

(3) Remove the eight screws G attaching the Power board.

3.2.4 Removing the Amp board (See Fig.9, 10)

(1) Remove the four screws H attaching the Back plate. (See

Fig.9)

F

H

Fig.9

(2) Remove the four screws J attaching the Amp board. (See

Fig.10)

G

G

CON902 CON901

Fig.8

CON01

J

J

Fig.10

G

1-10 (No.MB744<Rev.001>)

SECTION 4

ADJUSTMENT

This service manual does not describe ADJUSTMENT.

SECTION 5

TROUBLESHOOTING

This service manual does not describe TROUBLESHOOTING.

(No.MB744<Rev.001>)1-11

Victor Company of Japan, Limited

Home Entertainment Business Division Personal AV Operation 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan

(No.MB744<Rev.001>)

Printed in Japan

VSE

SCHEMATIC DIAGRAMS

COMPACT COMPONENT SYSTEM

NX-T5B,NX-T5E,NX-T5EN,

NX-T5EV,NX-T5EE

Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)

Contents

Block diagrams
Standard schematic diagrams
Printed circuit boards

COPYRIGHT 2010 Victor Company of Japan, Limited.

CA-NXT5SP-NXT5F SP-NXT5F SP-NXT5W

2-1
2-3
2-18 to 22

No.MB744SCH<Rev.001>

2010/5

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.

Block diagram 1

USB+5V DVD+5V DVD+5V

External USB USB HOST 2.0 Motor Driver Slot Type DVD Mechanism
Device Full Speed U702 Slot L33+ Sanyo HD850

DVD/CD Servo
Serial Flash Serial Flash
16M-Bits Interface
U706

SDRAM 16-Bits Width Filter OUT
1Mx4x16 Bit SDRAM Interface
U705

VCC+3V3

VCC+3V3

MPEG RESET

MPEG_CLK
MPEG_DAT
MPEG_STB

VCC+1V8 SCLK

VCC+3V3 D0 DSP Sound Processor LPF OP MPEG_R_OUT

Sunplus MPEG IC I2C Controller U708 9950_INT
U703

Controller

CVBS

UP-Scaler
3D De-Interlacer ESD PROTECTOR HDMI OUT
1080P HDMI 1.2 TX U709

HDCP 1.1 HDMI_TV_HPD

SPDIF_IN Optical Receiver

LC Low Pass CVBS

HDVCC+5V STB+3V3

HDMI CEC Translator 9950_RST

OPTICAL_IN

OPT1

MCLK

LRCLK

D1 U710 Audio DAC
D2 U700 MPEG_L_OUT

STB+3V3

MCU_LOAD_DISC+ CD DOOR

MOTER DRIVER

MCU_LOAD_DISC- U701

+5V

I2C

SCP_BSY

SCP_IRQ

/CS48540_RST

DAC+5V +12VA

VCC+3V3 A+1V8

2-1

Block diagram 2

Tuner+5V

MCU_VCC

FM Tuner Tuner_L +8V5

MCU_I2C_2 (With RDS +12VA

Decode Tuner_R MPEG_R_OUT

Touch Panel
8 Keys

IR RECEIVER

IR401,IR402
2PCS

KEY[1,2,3,4] I2C PRE_OUT_L

MCU_I2C_1

IR_IN HDMI_TV_HPD STB_3V3 Sound Processor PRE_OUT_R

IR MCU MPEG_STB

U601 MPEG_CLK

MPEG_DAT

/CS48540_RST
FLVFD (5x7 Dots,
8 Digits, Icons)
with COG Driver 9950_INT

Character ROM

VFD_CLK

VFD_STB

VFD_DATA

SCP_BSY

VFD_CONTROL SCP_IRQ

9950_RST

MCU_LOAD_DISC+

MCU_LOAD_DISC-

MCU RESET
POWER_EN

RESET AMP_STB

AMP_MUTE

DVD_PWR A+1V8

Level Detection +12V
and Transistor Switch 12V FAN +8V5

PRE_OUT_L

+12VV +12VV AMP+25V

HPF Class-D SPK_L_OUT

OP AMP OP AMP Amplifier (50W,6 Ohms)

Fc=150Hz

PRE_OUT_R

U803,U806

AMP_STB

SPK_R_OUT
(50W,6 Ohms) VFD+12V POWER_EN POWER_EN

EEPROM TU24C02CS2

MPEG_L_OUT

VCC+3V3

VCC+1V8

Tuner_L
Tuner_R

AUX_L
AUX_R

I2C

Regulator IC

Regulator IC

Regulator IC

DAC+5V

Regulator
9V/200mA

Regulator

5V1/200mA

Volume Control
Treble/Bass

U201

+12VA

Buffer OP

DVD+5V

+12VV

Regulator AMP+25V

12V/200mA

AMP_MUTE

VFD-28V

DC/DC DC/DC +12V

Converter Converter
Summer LPF Class-D U301,U302
OP AMP OP AMP Amplifier SUB_OUT

Fc=150Hz

U803,U806

(100w 3 Ohm) POWER_EN

DVD+5V

AMP_STB DVD_PWR

+12VV +12VV

AMP+25V

VFD+5V

Tuner+5V

USB+5V

+5V

MCU_VCC

DC/DC
Converter

HDVCC+5V U301,U302

POWER_EN

STB+3V3 Regulator IC

AC CORD

SMPS

STB+5V

2-2

Standard schematic diagrams

<SMPS section>

CN901

F901

L

T2.5A 250V

N

2PP=7.92mm

VD903

NC

R949

NC

C931

NC

+

D916

NC

T901B

MT-ER35/14P

D903

NC

C926

+

C907

47uF 25V

NC

C906

104

C929

0.1uF 275V

RT902

5R 4A

R937 R939

NC

R938

NC

12

L901

56R 1/4W

+

D904

FR104

3

4

L906

30mH

1

2

V906

1

R941

NC

NC

VD902

R940

NC

NC

U908

NC

T902B

MT-EF20/8P

CX901

0.22uF 275V

NC

2

R942

NC

V907

NC

R911

CY902

2M 1/2W

152 250V

CY901

152 250V

3

D906

FR104

+

C928

47uF 50V

3

1

LF901

30mH

R916

3.3K 1/4W

VD904

R909

10K 1/6W

U904B

EL817

R947

10K 1/6W

15V

4

2

V904
ST2N5551

CX902

0.22uF 275V

V902

SS8050

22R 1/8W

U905B

EL817

+

R915

C910

47uF 25V

R901

2M 1/2W

U903B

EL817

4

C904

471

C909

103

CY904

R933

2.7K 1/16W

C927

105 63V

2.2K 1/8W

VD901

U903A

EL817

U906

AZ431

R917

33R 2W

D907

UF802

C912

472 1KV

+

C914

2200uF 35V

R921

12V

R944

4.7K 1/8W

C911

105 63V

R924

33K 1/8W

C923

470uF 16V

C921

++

1000uF 16V

L904

10uH

R935

6.8K 1/8W

R936

1.8K 1/16W

++

C924

100uF 16V

C922

1000uF 16V

L902

15uH

2200uF 35V

R922

22K 1/8W

R923

2.7K 1/16W

NOTE)

+

R932

100R 1/8W

U904A

EL817C

+

C934

220uF 35V

C916

10K 1/6W

R931

3

L909

1

30uH

Warning
Parts that are shaded are critical
With respect to risk of fire or
electrical shock.

V905

SS8050

4

2

C918

104 50V

R929

+

R919

2.2K 2W

D910

1N4148

NC

C932

100uF 16V

CN902
1
2
3
4

4P P=3.96mm

R928

2.2K 1/8W

1
2
3

4
5
6

2

+25V
+25V
GND

4

GND

CN903

6P P=2.5mm

ECO
5VS
GND
GND

+12V
+12V

To Power Amplifier Section 1 CON801

To Power Amplifier Section 1 CON802

1

+

+

D905

1N4148

R907

22R 1/8W

R910

1K 1/8W

BEAD 3.5*6*0.8

C901

220uF 200V

C902

220uF 200V

R908

6.8K 1/8W

L908

R904

1R 2W

R903

47K 2W

2

D902

FR107

BEAD 3.5*6*0.8

3

V901

SPA11N60C3

1

R905

1R 2W

L905

C903

472 1KV

T901A

MT-ER35 14P

102 250V

2

D901

KBL10

3

RL901

D916

NC

4

3

NC

2

1

6

2

8

7

VCC

FB

HV

NC

ADJ

1

R902

10K 1/6W

OUT

4

CS

GND

5

U901

IC_NCP1216

3

C905

471

D913

C935

10uF 400V

+

C930

472 1KV

R948

47K 2W

1N5819

7

+

C908
1uF 50V

D915

2

6

VCC

FB

NC

1

GND

Drian

Drian

CSSofts

4

5

3

U902

IC_ICE3B1565

FR107

T902A

EEL-22

8

R913 R914

2R 1/4W2R 1/4W

U905A

EL817

U907

AZ431

D912

SR3100

D911

SR3100

R934

6.8K 1/8W

R950

68K 1/8W

CY903

102 250V

2-3

<Main section 1>

J201-B

T51

AUX_L

J201-A

T50

AUX_R

FB624

J202

T8

C239

TV18

FB627

To This sheet

AGND

FB628

D205

D206

VGND

MPEG_R_OUT

MPEG_L_OUT

AUX_R

AUX_L

AUX_R

CVBS_OUT

To This sheet

R242

R241

R202

C202

C220

AGND

C219

AGND

C204

AGND

FB205

R678

R679

R206

C222

C221

C206

R217

C233

AGND

Q201

EC201

C234

D207

MC201

MC202

C240

MC204

R210

C226

R208

R204

MC203

R209

C225

EC202

To Main section 2

U201

2314_DATA

2314_CLK

R219

R218

EC207

EC208

MC208

MC206

MC207

MC205

EC209

C241

R203

R207

C227

C228

R216

R215

R221

R222

EC204

AGND

LOUT

ROUT

AGND

C236

R230

R224

R229

R223

R226

AGND

R225

R220

AGND

C230

C229

AGND

EC203

R228

R227

C235

U202-B

C232

R232

U202-A

C231

R231

AGND

EC210

EC211

R234

R236

AGND

R233

R235

AGND

AUDIO-R-O

AUDIO-L-O

To Main section 2

TUNER_L

TUNER_R

AUX_L

AUX_R

MPEG_L

MPEG_R

AUX_L

TUNER_R

TUNER_L

AUDIO-L-O

AUDIO-R-O

C201

R239

R201

R240

C203

AGND

C212

AGND

C211

AGND

R205

R238

R237

C205

C214

C213

TU_R_IN

TU_L_IN

2-4

AGND

AGND

AGC3

AGC1

To Main section 2

C200

VGND GND

VFD_V_H_MODE

MODE_H_IN

LOAD_UP_DOWN+

D+D-_CONNECT

FB204

GND

T1

T2

TV21

T3

T4
T5

T6

T7

CON201

VFD_MODE_O

MODE_H_IN
LOAD_UP_DOWN+

To USB section CON501