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AV-29L31

SCHEMATIC DIAGRAMS
COLOR TELEVISION
BASIC CHASSIS

CH

AV-29L31/M
CD-ROM No. SML200202

DISPLAY

POWER

MENU

CHANNEL

VOLUME

CLOSED CAPTION

MUTING

TV/VIDEO

1 4

2 5 8 0

3 6 9
100

PICTURE MODE

7

CHANNEL SCAN RETURN

ECO SENSOR

OFF TIMER

RM-C248 REMOTE CONTROL UNIT

RM-C248-2C

COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD.

No. 51970 Jan. 2002

AV-29L31

AV-29L31/M STANDARD CIRCUIT DIAGRAM
q NOTE ON USING CIRCUIT DIAGRAMS
1. SAFETY
The components identified by the symbol and shading are critical for safety. For continued safety replace safety critical components only with manufactures recommended parts.

Type
No indication MY MM PP MPP MF TF BP TAN (3) Coils No unit Others (4) Power Supply : B1 : B2(12V) : 9V : 5V : Ceramic capacitor : Mylar capacitor : Metalized mylar capacitor : Polypropylene capacitor : Metalized polypropylene capacitor : Metalized film capacitor : Thin film capacitor : Bipolar electrolytic capacitor : Tantalum capacitor : [H] : As specified

2. SPECIFIED VOLTAGE AND WAVEFORM VALUES
The voltage and waveform values have been measured under the following conditions. (1) Input signal : Color bar signal (2) Setting positions of each knob/button and variable resistor : Original setting position when shipped (3) Internal resistance of tester : DC 20k/V (4) Oscilloscope sweeping time : H 20S/div :V 5mS/div : Others Sweeping time is specified (5) Voltage values : All DC voltage values

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

9Respective voltage values are indicated
(5) Test point : Test point : Only test point display (6) Connecting method : Connector : Wrapping or soldering : Receptacle (7) Ground symbol : LIVE side ground : ISOLATED(NEUTRAL) side ground : EARTH ground : DIGITAL ground

3. INDICATION OF PARTS SYMBOL [EXAMPLE] In the PW board : R1209 R209 4. INDICATIONS ON THE CIRCUIT DIAGRAM
(1) Resistors Resistance value No unit : [] k : [k] M : [M] Rated allowable power No indication : 1/16 [W] Others : As specified Type No indication : Carbon resistor OMR : Oxide metal film resistor MFR : Metal film resistor MPR : Metal plate resistor UNFR : Uninflammable resistor FR : Fusible resistor

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 the LIVE side GND and ISOLATED(NEUTRAL) side GND at the same time with a measuring apparatus ( oscilloscope, etc.). If the above precaution is not respected , a fuse or any parts will be broken.

9Composition resistor 1/2 [W] is specified as 1/2S or Comp.
(2) Capacitors Capacitance value 1 or higher less than 1 Withstand voltage No indication AC indicated Others

: [pF] : [F] : DC50[V] : AC withstand voltage [V] : DC withstand voltage [V]

9 Electrolytic Capacitors
47/50[Example] : Capacitance value [F]/withstand voltage[V]

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

Jan. 2002 No. 51970

AV-29L31

CONTENTS
SEMICONDUCTOR SHAPES ................................................................................................................................. 2-2 BLOCK DIAGRAM .......................................................................................................................................................... 2-3 CIRCUIT DIAGRAMS
MAIN PWB CIRCUIT DIAGRAM (1/2) ............................................................................................................................. 2-5 MAIN PWB CIRCUIT DIAGRAM (2/2) ............................................................................................................................. 2-7 CRT SOCKET PWB CIRCUIT DIAGRAM ....................................................................................................................... 2-9 FRONT CONTROL PWB CIRCUIT DIAGRAM ............................................................................................................ 2-11

PATTERN DIAGRAMS
MAIN PWB PATTERN ....................................................................................................................................................... 2-13 CRT SOCKET PWB PATTERN ....................................................................................................................................... 2-15 FRONT CONTROL PWB PATTERN .............................................................................................................................. 2-16

SEMICONDUCTOR SHAPES
TRANSISTOR
BOTTOM VIEW FRONT VIEW TOP VIEW
CHIP TR
E C B ECB E CB (G)(D)(S) E C B B E C

ECB

IC
BOTTOM VIEW FRONT VIEW TOP VIEW

1 OUT E IN IN E OUT 1 N 1 N

N

CHIP IC
TOP VIEW
N N 1

N

1 N N

2-2

No.51970

AV-29L31

AV-29L31

BLOCK DIAGRAM
SCL SDA TU001 TUNER 28 SF101 FILTER 29 23 SF102 FILTER 24

MAIN PWB

CRT SOCKET PWB

IF

SIF IN1 SIF IN2 ROUT IF IN1 IF IN2 GOUT BOUT 51 52 53 R G B IC101 VIDEO AMP

V01

SCL SDA VIDEO J801 VIDEO-1 INPUT AUDIO L/MONO AUDIO R V/Y CB J802,J803 COMPONENT (VIDEO-2) INPUT CR AUDIO L/MONO AUDIO R 2 V2-L 4 V2-R IC801 VIDEO SW 7 8 10 3

29,30

2,3

IC701 V/C DEF. PROCESSOR SCL,SDA

SCL SDA 35 2 BUF Q150 IC601 MULTI SOUND PROCESSOR 40 41

26,27 30,31 VM VM OUT

V1-V V1-L 25 V1-R V2-Y COUT1 YOUT1 27 1 3

IC702 EEPROM

5,6

62,63

SCL1 SDA1

QSS OUT

IC301 COMB FILTER

16 14

43 42 47

CIN CVBS/YIN Y U V 7

VDRB(-) VDRA(+) HOUT

21,22 33

CB CR

48 46

IF VOUT

38

10 64 Q109

VIDEO OUT J804 OUTPUT AUDIO L AUDIO R

37 36 35

Vout2 Lout2 Rout2 MTV-V

Q111 13 BUF CF106 TRAP

FRONT CONTROL PWB (2/2)

BUF

J801 HEADPHONE JACK

15 43 44 42 MTV-R V3-V L3-L L3-R 26 Lout1 Rout1 19 Yin1 Vout1 24 23 IC665 FILTER 14 MTV-L

L, R L_VOL, R_VOL 5 2 IC650 AUDIO AMP 7 12

SP L SP R

IC401 VERT OUT

V

VIDEO J303 FRONT IN (VIDEO-3) AUDIO L/MONO AUDIO R

FRONT CONTROL PWB (1/2)
KEY_IN REMOTE, LED
IC972 3.3V REG

Q522 H. OUT

H

3.3V_STB

DY01 DEF YOKE

TV/VIDEO VOL+

VOL-

CH+

CH-

MENU

D901 RECT

T901 SW TRANSF.

IC973 12V REG

12V FOCUS1 5V

IC974 REG REMOCON RECEIVER S901 F901 AC IN POWER SW IC901 POWER REG PC901 VOLTAGE FEEDBACK IC951 ERROR AMP POWER LED L951

8V 9V 32V B1

T551 FBT

FOCUS2 SCREEN EHV

No.51970

2-3

2-4

No.51970

AV-29L31

AV-29L31

CIRCUIT DIAGRAMS
MAIN PWB CIRCUIT DIAGRAM (1/2)

IC801

7

IC801

23

IC801

27

IC801

37

1.2Vp-p(H)

2.2Vp-p(H)

2.1Vp-p(H)

2.2Vp-p(H)

0V 0V 2.9V 8.3V 7.4V 0V 3.7V 3.7V
TO FRONT CONTROL PWB CN001

2.9V

5.0V

3.7V

5.0V

3.7V 3.7V 4.9V 4.3V 4.9V 4.4V 4.9V 9.0V 5.0V 9.0V 5.3V 4.4V 4.3V 5.0V 4.2V 4.2V 4.4V 7.0V 3.0V 2.4V 0.2 1.5 V V 4.4V 4.9V 4.3V 2.4V 2.4V 0V 0.1V 3.7V 1.7V 1.9V 6.3V 3.1V 5.0V 2.5V 4.3 V 3.0 V 9.0V 0V 0V 3.9V

4.3V
VIDEO-1 INPUT

5.9V 1.9V 1.7V 4.9V 4.3V 4.1V 4.2V 3.4V 4.2V 4.2V 2.6V 1.9V
TO CRT SOCKET PWB CN00T

4.3V

5.7V

4.3V

4.9V

5.1V

1.9V 2.6V 2.6V 3.3V 2.7 V 3.3V 3.3V 5.0V
100/16

COMPONENT (VIDEO-2) INPUT

4.8V 1.7V 2.3 V 4.9V 0.9V 1.4V 0V 1.5V 1.6V 9.0V 2.1 V 4.4V 5.0V 5.0 V 1.5V 5.0V 0.6V 0V 5.0V 5.0V

5.0 V 2.8V 2.7V 2.7V 5.1V 5.0V 3.3V 1.6V 1.5V 3.3V 0V 0V 0V

2.6 2.6 2.4 4.2 1.9 V V V V V 0V 3.7V 3.3V 8.3V 3.5V 2.0V 1.5V 3.8V 2.6V

0.6 V

1.4V

IC701

21

1.0Vp-p(V)

2.6V

4.9V

3.3V

IC701
5.0V 3.8V 1.8V 8.3V 4.9V 3.0V 4.0V 2.0V 0.7V 0.8V 1.9V 1.6V 3.3V 1.9V 3.8V 3.6V 0V 0.6V 0V 3.3V 5.0V 3.3 V 2.8 V 0V 0V 3.3V 2.1V

22

3.1V 0.5V

1.0Vp-p(V)
4.0V

IC301
OUTPUT

3

0V 0V

4.6 1.9 1.9 V V V

0 V

1.1Vp-p(H)
3.3V 2.7 V

IC701

33

IC701

42

2.8Vp-p(H)
AN5277 15k 10k 0.022/50 0.047/50

1.04Vp-p(H)

5.0V 5.0 V 0V

IC701

43

IC701

47

0.55Vp-p(H)
0V 0V 22.8 V
22k 0.047/50 10k 0.022/50 15k 0 0 10/50 0 10/50 100k 0 100k

1.6Vp-p(H)

0V 0 V 11.5V 0.1V

15.3V 24V 11.4V 1.5 V 9.0V 2.2V

22k

IC701

51

IC701

52

3.4Vp-p(H)

2.6Vp-p(H)

0V 0V 0V -0.3V 4.6V -1.0V 5.0 V

0V
-0.4V

IC701
0V 0.6V
0

53

3.6Vp-p(H)

5.0V

33.8V

2SC2412K /QR/-X

10k

68k

2SC2412K /QR/-X

MAIN PWB ASS'Y (1/2) SCH-1039A-H2

5.0V

1.7V

1.9V

8.6V

4.6V

0V

0V

0V

33k

10k

NOTE X BW 0 2 3 7 : : : : : : OPTION (NON MOUNT) BUS WIRE NRSA63J-0R0X 2SA1037AK/QR/-X MA111-X 2SC1740S/QR/-T

16.9V 0.6V 0V
2.2k

QETN1HM-106Z

No.51970

2-5

2-6

No.51970

AV-29L31

AV-29L31

MAIN PWB CIRCUIT DIAGRAM (2/2)

1.9 V 3.3V 5.0V 1.7V

IC401

3

IC401

5

30Vp-p(V)
14.4V 9.0V DEG COIL
L01

60Vp-p(V)

-13.1V

0.9 V 0.3 V

0.3 V 0V -15.2 V

IC401

6

IC401

7

IC401

1

20Vp-p(V)
14.6V

5Vp-p(V)

QQW0113-001

0.7Vp-p(V)

TO FRONT CONTROL PWB CN00W 5.3V

IC401
3.3V

2

2Vp-p(V)

X

ERC30-02L38 2200p/35 QQR1214-001Y

TO CRT SOCKET PWB CN00U 27.7V 27.7 V 6.6V 6.7V 16.3 V 9.0V

2.0 2.0 V 1.9V V

2.5V 2.4 V

T551

7

FOR ADJ. CONNECTOR

25Vp-p(H)

2.4V 0V 291V 19.6V

9.1V 9.6 V

2.7V 5.1 V 16.0V

T551
0.6V

3
134.2V 133.8V 0V

1140Vp-p(H)

90Vp-p(H)

34.1V 11.3 V 11.7V -0.1V 5.0V 0V

20.6V

19.8V

19.8V 19.4V 0V 19.8V 134.2V 26.6V

3.5V

Q521

B

Q522

B

T551

5

T551

4

2Vp-p(H)
27.7V 0V 0V 0V 0.6V

2.4Vp-p(H)

150Vp-p(H)

150Vp-p(H)

Q521

C

T551

2

T551

9

NOTE X BW 0 1 2 3 5 : : : : : : : OPTION (NON MOUNT) BUS WIRE NRSA63J-0RX 2SC2412K/QR/-X 2SA1037AK/QR/-X MA111-X DTC124EKA-X

45Vp-p(H)

8Vp-p(H)

96Vp-p(H)

MAIN PWB ASS'Y (2/2) SCH-1039A-H2

DEF YOKE

No.51970

2-7

2-8

No.51970

AV-29L31

AV-29L31

CRT SOCKET PWB CIRCUIT DIAGRAM

QJB003-083213

TO MAIN PWB CN00T
3.3Vp-p(H)

111V 108V

12.0V 3.4V 3.5V 2.8V 2.6V 12.0V 2.7V

2.8V 2.7V 2.7V

6.0V 207 V

104V

CE42670-001

2.0V 3.3V 3.3V 2.7V 12.0V 2.7V 2.0V

12.0V

3.1Vp-p(H)

2.7V

12.0V 3.4V
2.5Vp-p(H)

154.5 -2.5V V

2.8V

12.0V 2.1V 2.7V

3.4V

2.7V

-2.2V 21.2V 22.7V
IC101 7 IC101 8 IC101 9

150Vp-p(H)

110Vp-p(H)

150Vp-p(H)

BW

1.5 1W QRZ9021-1R5

TO MAIN PWB CN00U 11.4V 2.2V 3.3V 1.5V 2.7V

12.0V 12.0V 7.7V 123V 4.6V 7.0V 64.0V 6.4V 1.6V 1V 64.0V 3.2V 2.7V

123.7V

NOTE X BW 0 1 2 3 7 8 9 : : : : : : : : : : OPTION (NON MOUNT) BUS WIRE NRSA63J-0R0X 2SC2412K/QR/-X 2SA1037AK/QR/-X MA111-X 2SC1740S/QR/-T 2SA933AS/QR/-T CE41492-001Z LOW B GND

7.0V 7.1V

CRT SOCKET PWB ASS'Y SCH-3001A-H2

(H)

: HIGH B GND

No.51970

2-9

2-10

No.51970

AV-29L31

AV-29L31

FRONT CONTROL PWB CIRCUIT DIAGRAM

FRONT INPUT (VIDEO-3) TO DEG COIL

TO MAIN PWB CN00W

FRONT CONTROL PWB ASS'Y SCH-8001A-H2
0V

5.0 0V V

7.5V 7.5V 6.3V 6.5V

5.9V 5.6V 5.5V 5.5V 12V

5.6V 4.1V -1.4V 0.2V 7.6V

AC110V-240V

NOTE X BW 0 1 2 3 : : : : : : OPTION (NON MOUNT) BUS WIRE NRSA63J-0R0X 2SC2412K/QR/-X 2SA1037AK/QR/-X MA111-X
TO MAIN PWB CN00A

TO SPEAKER

TO MAIN PWB CN001

No.51970

2-11

2-12

No.51970

AV-29L31

AV-29L31

PATTERN DIAGRAMS
MAIN PWB PATTERN

B1

(

)

(

)

FRONT

No.51970

2-13

2-14

No.51970

AV-29L31

CRT SOCKET PWB PATTERN

TOP

(

)

No.51970

2-15

AV-29L31

FRONT CONTROL PWB PATTERN

FRONT CONTROL (1/2)

FRONT

(

)

FRONT CONTROL (2/2)

(

)

FRONT

2-16

No.51970

VICTOR COMPANY OF JAPAN, LIMITED HOME AV NETWORK BUSINESS UNIT 12, 3-chome, Moriya-cho, kanagawa-ku, Yokohama, kanagawa-prefecture, 221-8528, Japan
AV29L31M-H #4 Printed in Japan VP0201 SW