JVC AV-2186ME, AV-21MS16, AV-21MS26, AV-21MX16, AV-21MX56 Schematic

...

SCHEMATIC DIAGRAMS

Preliminary

COLOUR TELEVISION

YA44220067

AV-2186ME, AV-21MS16/H, AV-21MS26, AV-21MX16 AV-21MX16 AV-21MX76

CD-ROM No.SML200607

/S, AV-21MX56/S,

BASIC CHASSIS

/G,

CW3

No.YA442

2006/7

AV-2186ME, AV-21MS16/H, AV-21MS26, AV-21MX16/G, AV-21MX16/S, AV-21MX56/S, AV-21MX76/G

STANDARD CIRCUIT DIAGRAM

NOTE ON USING CIRCUIT DIAGRAMS

1.SAFETY

The components identified by the symbol and shading are critical for safety. For continued safety replace safety ciritical components only with manufactures recommended parts.

2.SPECIFIED VOLTAGE AND WAVEFORM VALUES

The voltage and waveform values have been measured under the following conditions.

(1)Input signal : Colour bar signal

(2)Setting positions of each knob/button and variable resistor

(3)Internal resistance of tester

(4)Oscilloscope sweeping time

(5)Voltage values

Since the voltage values of signal circuit vary to some extent according to adjustments, use them as reference values.

: Original setting position when shipped

: DC 20kΩ/V

: H

: V

: Othters

: All DC voltage values

20µs / div

5ms / div

Sweeping time is specified

3.INDICATION OF PARTS SYMBOL [EXAMPLE]

In the PW board

: R209

R209

Type

No indication

MM PP MPP

MF TF BP

TAN

(3)Coils

No unit

Others

(4)Power Supply

Respective voltage values are indicated

(5)Test point

: Test point

(6)Connecting method

: Ceramic capacitor : Metalized mylar capacitor

: Polypropylene capacitor : Metalized polypropylene capacitor : Metalized film capacitor : Thin film capacitor : Bipolar electrolytic capacitor : Tantalum capacitor

: [µH]

: As specified

: B1

: 9V

: Connector

: Receptacle

: Only test point display

: Wrapping or soldering

: B2 (12V

: 5V

)

4.INDICATIONS ON THE CIRCUIT DIAGRAM

(1)Resistors

Resistance value

No unit : [Ω]

K M

Rated allowable power No indication : 1/16 [W]

Others : As specified

Type

No indication

OMR

MFR

MPR

UNFR

Composition resistor 1/2 [W] is specified as 1/2S or Comp.

(2)Capacitors

Capacitance value

1 or higher : [pF]

less than 1

Withstand voltage

No indication : DC50[V]

Others : DC withstand voltage [V]

AC indicated Electrolytic Capacitors

47/50[Example]: Capacitance value [µF]/withstand voltage[V]

: [kΩ]

: [MΩ]

: Carbon resistor

: Oxide metal film resistor

: Metal film resistor

: Metal plate resistor

: Uninflammable resistor

: Fusible resistor

: [µF]

: AC withstand voltage [V]

(7)Ground symbol

: LIVE side ground

: ISOLATED(NEUTRAL) side ground

: EARTH ground

: DIGITAL ground

5.NOTE FOR REPAIRING SERVICE

This model's power circuit is partly different in the GND. The difference of the GND is shown by the LIVE : ( ) side GND and the ISOLATED(NEUTRAL) : ( ) side GND. Therefore, care must be taken for the following points.

(1)Do not touch the LIVE side GND or the LIVE side GND and the ISOLATED(NEUTRAL) side GND simultaneously. if the above caution is not respected, an electric shock may be caused. Therefore, make sure that the power cord is surely removed from the receptacle when, for example, the chassis is pulled out.

(2)Do not short between the LIVE side GND and ISOLATED(NEUTRAL side GND or never measure with a measuring apparatus measure with a measuring apparatus ( oscilloscope, etc.) the LIVE side GND and ISOLATED(NEUTRAL) side GND at the same time. If the above precaution is not respected, a fuse or any parts will be broken.

Since the circuit diagram is a standard one, the circuit and circuit constants may be subject to change for improvement without any notice.

NOTE Due improvement in performance, some part numbers show in the circuit diagram may not agree with those indicated in the part list. When ordering parts, please use the numbers that appear in the Parts List.

(No.YA442)2-1

)

SEMICONDUCTOR SHAPES ......................................................................2-2

BLOCK DIAGRAM

[AV-21MS16/H, AV-21MS26, AV-21MX16/G, AV-21MX16/S] ....................................................................... 2-3

[AV-2186ME, AV-21MX56/S,AV-21MX76/G] ................................................................................................ 2-5

CIRCUIT DIAGRAMS

MAIN PWB CIRCUIT DIAGRAM [AV-2186ME, AV-21MX56/S, AV-21MX76/G] (1/4), (2/4) .......................... 2-7

MAIN PWB CIRCUIT DIAGRAM [AV-2186ME, AV-21MX56/S, AV-21MX76/G] (3/4), (4/4) .......................... 2-9

MAIN PWB CIRCUIT DIAGRAM [AV-21MS16/H, AV-21MS26] (1/4), (2/4) ................................................. 2-11

MAIN PWB CIRCUIT DIAGRAM [AV-21MS16/H, AV-21MS26] (3/4), (4/4) ................................................ 2-13

MAIN PWB CIRCUIT DIAGRAM [AV-21MX16/G, AV-21MX16/S] (1/4), (2/4)............................................. 2-15

MAIN PWB CIRCUIT DIAGRAM [AV-21MX16/G, AV-21MX16/S] (3/4), (4/4)............................................. 2-17

BASS PWB CIRCUIT DIAGRAM .............................................................................................................. 2-19

PATTERN DIAGRAMS

MAIN PWB PATTERN .............................................................................................................................. 2-21

BASS PWB PATTERN ............................................................................................................................. 2-23

VOLTAGE CHATRS................................................................................... 2-25

WAVEFORMS ............................................................................................ 2-26

USING P.W. BOARD

P.W.B ASS’Y name

MAIN P.W. BOARD

BASS P.W. BOARD

P.W.B ASS’Y name

MAIN P.W. BOARD

BASS P.W. BOARD

AV-2186ME

SCW-1901A-H2

SCW-6001A-H2

AV-21MS26

SCW-1902A-H2

SCW-6001A-H2

AV-21MX56/S AV-21MX76/G AV-21MS16/H

SCW-1911A-H2 SCW-1908A-H2

AV-21MX16/G AV-21MX16/S

SCW-1910A-H2 SCW-1912A-H2

SEMICONDUCTOR SHAPES

TRANSISTOR

BOTTOM VIEW FRONT VIEW TOP VIEW

CHIP TR

E C B

BOTTOM VIEW FRONT VIEW TOP VIEW

OUT

ECB

IN OUTE

(G)E(S)C(D)

1 N

ECB

1 N

SCW-1903A-H2

CHIP IC

2-2(No.YA442)

TOP VIEW

BLOCK DIAGRAMS

[AV-2186ME, AV-21MX56/S,AV-21MX76/G]

S-VIDEO

VIDEO-1 S-VIDEO INPUT

VIDEO-2 COMPONENT VIDEO INPUT

OUTPUT

VIDEO-3 INPUT (FRONT)

AC IN

J801

J802

J803

J804

VIDEO

J806

VIDEO

J807

AUDIO-L

J808

AUDIO-R

MAIN PWB

MAIN MICRO COMPUTER/TELETEXT DECODE/IF.VIDEO.RGB.SYNC.DEF. PROCESSIC701

108,109

SCL SDA

TU001

TUNER

S_V_DET

CVBS1

V2/Y

V-OUT

L-OUT

R-OUT

VOL+

F901

POWER SW

(FRONT LED)

REMOCON RECEIVER

VOL- CH+ CH- MENU

S901

MAIN MEMORY

SAW FILTER

MAIN PWB

IC702

SF101

SF102

POWER

LED

127,128

98,99

119

122

29, 30

24, 25

SCL1, SDA1

SCL0, SDA0

PW_LED

REMOTE

KEY_IN

S_V_DET

SIF IN

VIF IN

G3/Y

B3/PB

R3/PR

V2/Y

Y1/CVBS

V_OUT

L_OUT

R_OUT

SIF DETECT

VIF DETECT/AGC/AFT

SOUND TRAP

VIDEO

SELECT

AUDIO

SELECT

I2C

BUS

I/O

PORT

MICRO

COMPUTER

VIDEO

IDENT.

COMB FILTER Y DELAY ADJ.

AUDIO

SELECT

COLOUR

DEMOD

AUDIO

CONTROL

D901 RECT

IC921

POWER

REG

TELETEXT DECODER

DIGITAL SIGNAL PROCESS

PEAKING SCAN

VELOCITY MOD.

U/V DELAY

SKIN TONE

U/V TINT

SATURATION

B-Y R-Y

BASE-BAND DELAY LINE

SYNC

SEP.

A_L

A_R

T921

TRANSF.

PC901

VOLTAGE

FEEDBACK

RRGGB

RGB MATRIX

GAMMA

V. DRIVE

H. DRIVE

IC971

3.3V REG

IC972

3.3V REG

IC975

5V REG

IC973

12V REG

IC951

ERROR

AMP

ROUT

GOUT

BOUT

OSD/TEXT INSERT

PIP_SEL

PIP_RIN

CVBSO/PIP(PIP_OUT)

L951

PIP_GIN

PIP_BIN

VDRA+, VDRB-

HOUT

IC671

BASS AMP

3.3V

Q983 Q984

1.8V REG

Q981 Q982

1.8V REG

3.3V_STB

12V

32V

22, 23

1.8V

1.8V (V1.8A)

IC301

PIP CONTROL

36, 37

SEL

VSP

HSP

CVBS2

I2C

D-A

CONVERT

SYNC

PROC.

RGB

MATRIX

OVER

SAMPLE

DRAM

H/V

SCALER

COLOUR

DEC.

A-D

CONVERT

1323L_AOUT

IC601

AUDIO AMP

T522

FBT

IC401

V. OUT

Q522

H. OUT

FOCUS

SCREEN

EHV

1, 7

R_AOUT

IC351

RGB OUT

MAIN PWB (CRT SOCKET)

DEF YOKE

V01

J809

HEADPHONE

SPEAKER L

SPEAKER R

DY01

2-4(No.YA442)(No.YA442)2-3

[AV-21MS16/H, AV-21MS26, AV-21MX16/G, AV-21MX16/S]

IC702

MAIN MEMORY

SF101

SAW FILTER

SF102

SAW FILTER

MAIN PWB

(FRONT LED)

POWER

LED

VIDEO-1

S_VIDEO

INPUT

VIDEO-2

COMPONENT

VIDEO

INPUT

OUTPUT

VIDEO-3

INPUT

(FRONT)

AC IN

J801

S-VIDEO

J802

J803

J804

VIDEO

J806

VIDEO

J807

AUDIO-L

J808

AUDIO-R

SCL SDA

TU001

TUNER

SW1

CVBS1

V2/Y

V-OUT

L-OUT

R-OUT

TV/VIDEO

VOL+

REMOCON RECEIVER

VOL- CH+ CH- MENU

F901

S901

POWER SW

108,109

127,128

98,99

119

122

29, 30

24, 25

SCL1, SDA1

SCL0, SDA0

LED

REMOTE

KEY_IN

SV_DET

SIF IN

VIF IN

Y/V1

VOUT

LOUT

ROUT

SIF DETECT

VIF DETECT/AGC/AFT

SOUND TRAP

VIDEO

SELECT

AUDIO

SELECT

I2C

BUS

I/O

PORT

IC701 MAIN MICRO COMPUTER/

IF㨯VIDEO㨯RGB㨯SYNC㨯DEF. PROCESS

MICRO

COMPUTER

VIDEO

IDENT.

COMB FILTER Y DELAY ADJ.

AUDIO

SELECT

COLOUR

DEMOD

AUDIO

CONTROL

D901 RECT

IC921

POWER

REG

DIGITAL SIGNAL PROCESS

B-Y R-Y

BASE-BAND DELAY LINE

SYNC

SEP.

A_L

A_R

T921

TRANSF.

PC901

VOLTAGE

FEEDBACK

PEAKING SCAN VELOCITY MOD.

U/V DELAY

SKIN TONE

U/V TINT

SATURATION

V. DRIVE

H. DRIVE

IC972

3.3V REG

IC975

5V REG

IC973

12V REG

IC951

ERROR

AMP

RRGGB

RGB MATRIX

GAMMA

1.8V REG

L951

IC671

BASS AMP

Q983 Q984

Q981 Q982

3.3V_STB

OSD SELECT

ROUT

GOUT

BOUT

VDA,VDB

HOUT

1.8V

V1.8V (V1.8A)

12V

32V

22, 23

MAIN PWB

IC351

RGB OUT

V01

CRT SOCKET PWB

J801

HEADPHONE

SPEAKER L

FOCUS

SCREEN

EHV

SPEAKER R

DY01

DEF YOKE

IC601

AUDIO AMP

T522

FBT

IC401

V. OUT

Q522

H. OUT

(No.YA442)2-5 2-6(No.YA442)

+ 11 hidden pages

JVC AV-2186ME, AV-21MS16, AV-21MS26, AV-21MX16, AV-21MX56 Schematic

STANDARD CIRCUIT DIAGRAM

CONTENTS

USING P.W. BOARD

SEMICONDUCTOR SHAPES

BLOCK DIAGRAMS