Page 1
AV-21L31B
AV-29L31
AV-29L31B
SCHEMATIC DIAGRAMS
COLOR TELEVISION
BASIC CHASSIS
CH
POWER
DISPLAY
MENU
CHANNEL VOLUME
CLOSED
MUTING
CAPTION
TV/VIDEO
123
456
PICTURE MODE
7809
100
RETURN
CHANNEL SCAN
OFF TIMER
ECO SENSOR
RM-C248 REMOTE CONTROL UNIT
RM-C248-2C
[AV-29L31
/T]
POWER
DISPLAY
MENU
BASS
CHANNEL VOLUME
CLOSED
MUTING
CAPTION
TV/VIDEO
123
456
PICTURE MODE
7809
RETURN
100
CHANNEL SCAN
OFF TIMER
ECO SENSOR
RM-C249 REMOTE CONTROL UNIT
RM-C249-2C
[AV-21L31B
[AV-29L31B
AV-21L31B
AV-29L31
AV-29L31B
CD-ROM No. SML200202
/T]
/T]
/T
/T
/T
[AV-21L31B/T] [AV-29L31/T, AV-29L31B/T]
COPYRIGHT © 2002 VICTOR COMPANY OF JAPAN, LTD.
No. 51926
Jan. 2002
Page 2
AV-21L31B /T
AV-29L31 /T
AV-21L31B
AV-29L31
AV-29L31B
AV-29L31B /T
q
NOTE ON USING CIRCUIT DIAGRAMS
STANDARD CIRCUIT DIAGRAM
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.
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 20kØ/V
(4) Oscilloscope sweeping time : H ⇒ 20µS/div
:V ⇒ 5mS/div
: Others ⇒ Sweeping time is
specified.
(5) Voltage values : All DC voltage values
9Since the voltage values of signal circuit vary to some extent ac-
cording to adjustments, use them as reference values.
3. INDICATION OF PARTS SYMBOL [EXAMPLE]
• In the PW board : R1209
→
R209
Type
•
No indication : Ceramic capacitor
MY : Mylar capacitor
MM : Metalized mylar capacitor
PP : Polypropylene capacitor
MPP : Metalized polypropylene capacitor
MF : Metalized film capacitor
TF : Thin film capacitor
BP : Bipolar electrolytic capacitor
TAN : Tantalum capacitor
(3) Coils
No unit : [µH]
Others : As specified
(4) Power Supply
:B1
: B2(12V)
:9V
:5V
9Respective voltage values are indicated
(5) Test point
: Test point
: Only test point display
4. INDICATIONS ON THE CIRCUIT DIAGRAM
(1) Resistors
Resistance value
•
No unit : [Ø]
k:[kØ]
M:[MØ]
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 : Non-Flammable resistor
FR : Fusible resistor
9Composition resistor 1/2 [W] is specified as 1/2S or Comp.
(2) Capacitors
Capacitance value
•
1 or higher : [pF]
less than 1 : [µF]
Withstand voltage
•
No indication : DC50[V]
AC indicated : AC withstand voltage [V]
Others : DC withstand voltage [V]
9 Electrolytic Capacitors
47/50[Example] : Capacitance value [µF]/withstand voltage[V]
(6) Connecting method
: Connector
: Wrapping or soldering
: Receptacle
(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 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.
Since the circuit diagram is a standard one, the circuit and cir-
•
cuit constants may be subject to change for improvement without any notice.
Jan. 2002 No. 51926
Page 3
AV-21L31B
AV-29L31
AV-29L31B
CONTENTS
SEMICONDUCTOR SHAPES ................................................................................................................................. 2-2
BLOCK DIAGRAM [AV-21L31B/T] ....................................................................................................................... 2-3
CIRCUIT DIAGRAMS [AV-21L31B/T] .................................................................................................................2-5
MAIN PWB CIRCUIT DIAGRAM (1/3) ............................................................................................................................. 2-5
MAIN PWB CIRCUIT DIAGRAMS (2/3, 3/3) ................................................................................................................... 2-7
PATTERN DIAGRAMS[AV-21L31B/T] ................................................................................................................ 2-9
MAIN PWB PATTERN......................................................................................................................................................... 2-9
MAIN (CRT SOCKET) PWB PATTERN ......................................................................................................................... 2-11
BLOCK DIAGRAM [AV-29L31/T, AV-29L31B/T] ......................................................................................... 2-13
CIRCUIT DIAGRAMS [AV-29L31/T, AV-29L31B/T] ................................................................................... 2-15
MAIN PWB CIRCUIT DIAGRAM (1/2) ........................................................................................................................... 2-15
MAIN PWB CIRCUIT DIAGRAM (2/2) ........................................................................................................................... 2-17
CRT SOCKET PWB CIRCUIT DIAGRAM..................................................................................................................... 2-19
FRONT CONTROL PWB CIRCUIT DIAGRAM ............................................................................................................ 2-21
PATTERN DIAGRAMS [AV-29L31/T, AV-29L31B/T] ................................................................................. 2-23
MAIN PWB PATTERN....................................................................................................................................................... 2-23
CRT SOCKET PWB PATTERN ....................................................................................................................................... 2-25
FRONT CONTROL PWB PATTERN .............................................................................................................................. 2-26
SEMICONDUCTOR SHAPES
TRANSISTOR
E
C
B
ECB
IC
OUT
E
IN
IN E OUT
CHIP IC
N
N
EC
B
(G)(D)(S)
ECB
1N
TOP VIEW
1
ECB
1N
TOP VIEWBOTTOM VIEW FRONT VIEW
CHIP TR
C
B
E
TOP VIEWBOTTOM VIEW FRONT VIEW
1N
N
1
N
2-2 No.51926
N
Page 4
BLOCK DIAGRAM [AV-21L31B/T]
AV-21L31B AV-21L31B
J801
VIDEO-1
INPUT
J802,J803
COMPONENT
(VIDEO-2)
INPUT
J804
OUTPUT
J771-J773
FRONT IN
(VIDEO-3)
AC IN
TU001
TUNER
VIDEO
AUDIO L/MONO
AUDIO R
V/Y
CB
CR
AUDIO L/MONO
AUDIO R
VIDEO OUT
AUDIO L
AUDIO R
VIDEO
AUDIO L/MONO
AUDIO R
VOL+
SCL
SDA
IF
7
V1-V
8
V1-L
10
V1-R
3
V2-Y
IC801
VIDEO SW
2
V2-L
4
V2-R
37
Vout2
36
Lout2
35
Rout2
43
V3-V
44
L3-L
42
L3-R
19
Yin1
VOL- CH+ CH- MENU
REMOCON
RECEIVER
S901
POWER SW
POWER
LED
F901
SCL
SDA
COUT1
YOUT1
MTV-V
MTV-R
MTV-L
Lout1
Rout1
Vout1
FILTER
FILTER
SF101
SF102
29,30
25
27
13
15
14
26
24
23
28
SIF IN1
29
SIF IN2
23
IF IN1
24
IF IN2
43
42
47
48
46
PROCESSOR
SCL,SDA
SCL1
SDA1
CIN
CVBS/YIN
Y
U
V
D901
RECT
2,3
62,63
IC702
EEPROM
CB
CR
Q111 Q109
BUF
5,6
CF106
TRAP
Rout1
Lout1
REMOTE, LED
KEY_IN
IC701
V/C DEF.
QSS OUT
7
IC901
POWER
REG
ROUT
GOUT
BOUT
VDRB(-)
VDRA(+)
HOUT
IF VOUT
10
64
BUF
VOLTAGE
FEEDBACK
51
52
53
35
21,22
33
38
T901
SW
TRANSF.
PC901
IC951
ERROR
AMP
SCL
SDA
32
1
IC972
3.3V REG
IC974
REG
L951
R
G
B
Q150
BUF
IC602
SOUND
PROCESSOR
IC401
VERT OUT
Q522
H. OUT
Lout1
Rout1
20
12
19
3.3V_STB
5V
8V
9V
32V
MAIN PWB
2
SCL
SDA
40
41
L, R
L
R
BASS
12
IC850
OP AMP
IC601
MULTI SOUND
PROCESSOR
9
3
4
8
30,31
IC650
AUDIO AMP
20
13
23
MAIN (CRT SOCKET) PWB
2
3
1
IC351
VIDEO AMP
8
7
9
J774
BASS SPEAKER
OUT
J770
HEADPHONE
JACK
SP
SP
V
V01
L
R
DY01
DEF YOKE
H
FOCUS1
B1
T551
SCREEN
FBT
EHV
No.51926 No.51926
2-3 2-4
Page 5
CIRCUIT DIAGRAMS [AV-21L31B/T]
MAIN PWB CIRCUIT DIAGRAM(1/3
)
AV-21L31B AV-21L31B
FRONT INPUT
(
)
VIDEO-3
VIDEO-1
INPUT
COMPONENT
(
VIDEO-2
INPUT
OUTPUT
9.0V
BASS
SPEAKER OUT
5.0V
0V
0V
5.0V
4.9V
4.3V
4.9V
4.4V
4.9V
5.3V
4.3V
4.4V
7.0V
5.9V
4.3V
4.3V
4.9V
4.3V
4.3V
5.7V
4.9V
2.6V
2.1V
4.4V
4.9V
4.3V
9.0V
9.0V
4.4V
5.0V
4.2V
4.2V
1.9V
1.7V
4.1V
4.2V
3.4V
4.2V
5.1V
2.3V
1.7V
3.0V
2.4V
2.6V
1.9V
4.2V
1.9V
2.6V
2.6V
8.3V
7.4V
0V
3.7V
3.7V
3.7V
3.7V
0.1V
3.7V
0V
5.0V
1.5V
0.2
V
5.0
V
5.0V
0V
0V
0V
2.9V
2.9V
2.4V
2.4V
3.3V
2.7V
4.8V
5.0V
3.3V
5.0V
2.7V
3.3V
5.0V
5.0V
1.7V
1.9V
5.0V
TO CRT SOCKET
PWB CN10T
3.3V
3.3V
5.05.0
V
V
3.3V
1.8V
1.6V
3.3V
3.3V
5.0
V
3.3V
2.8
3.3V
0V
0V
V
6.3V
3.1V
2.5V
2.7V2.8V 2.7V 5.1V0V3.3V0V1.5V0V 1.6V
8.3V
0V
V
V
3.8V
4.0V
3.0V
4.9V
0V
5.0V
5.0V
0V
9.0V
0V
4.3V
1.9V2.4V4.22.6V2.6
1.5V 3.7V
0.7V
0.8V
2.0V
8.3V8.3V
0V
3.3V
3.8V
1.9V
4.6V
3.6V
1.9
V
0V
3.9V
1.4V
2.0V
3.5V
2.6V
0.6V
2.1V
4.0V
0
1.9
1.9
V
V
V
33
IC701
)
2.8Vp-p(H
43
IC701
)
0.55Vp-p(H
IC701
1.0Vp-p(V
IC701
1.0Vp-p(V
IC701
IC701
21
22
42
1.04Vp-p(H
47
1.6Vp-p(H
)
)
)
)
TO
SPEAKER
)
4.4V
7
IC801
)
1.2Vp-p(H
IC801
2.2Vp-p(H
IC801
2.1Vp-p(H
IC801
2.2Vp-p(H
23
)
0V
-0.4V
27
0V
)
4.6V
-1.0V
5.0V
37
)
MAIN PWB ASS’Y(1/3
)
0V
-0.4V
0V
0V
0.6V
0V
0V
0V
0V
0.6V
33.8V
1.7V
5.0V
5.0V
SCH-1042A-H2
1.5V
9.0V
2.2V
0V
4.6V
1.9V
NOTE
: OPTION(NON MOUNT
X
: BUS WIRE
BW
: NRSA63J-0R0X
0
: 2SC2412K/QR/-X
1
: 2SA1037AK/QR/-X
2
: MA111-X
3
: DTC124EKA-X
5
: 2SC1740S/QR/-T
7
IC701
3.4Vp-p(H
IC701
3.6Vp-p(H
)
51
)
53
)
IC701
2.6Vp-p(H
52
)
2-5 2-6No.51926 No.51926
Page 6
AV-21L31B AV-21L31B
MAIN PWB CIRCUIT DIAGRAMS(2/3,3/3
POWER CORD
AC120V-240V
50Hz/60Hz
)
DEG COIL
QQW0118-001
IC401
)
0.7Vp-p(V
2
IC401
)
2Vp-p(V
9.0V
0V
IC401
30Vp-p(V
20Vp-p(V
)
2.2k
2.2k
2.2k
6
)
14.4V
0.3
V
5
IC401
)
60Vp-p(V
7
5.3V
3.3V
IC401
5Vp-p(V
)
0.9V
-13.1V
0.3V
-15.2V
14.6V
TO
MAIN
PWB
CN00T
4.7/250
390k
QQLZ031-430
3
IC401
1
CRT SOCKET
A51LSH196X
X
MAIN(CRT SOCKET)PWB ASS’Y(3/3
SCH-1042A-H2
)
19.6V
291V
0V
2.4V
MAIN PWB ASS’Y(2/3
SCH-1042A-H2
X
RU3AM-LFC4
Q522
2.4Vp-p(H
Q521
45Vp-p(H
27.7V
X
100/160
0V
B
)
C
)
X
0V
0V
0.6V
T551 T551
150Vp-p(H
T551 T551
8Vp-p(H
9.8
5.1
V
134.2V
26.6V
150Vp-p(H
96Vp-p(H
2.7
V
V
QQH0104-001
5.6
6.8
27
CE40203-00CJ1
20.6V
0V
7
)
6.6V
-0.1V
2.0
2.0V
9.0V
1.9V
V
2.5V
2.4
V
270
T551
6000p
25Vp-p(H
4
22k
ERB06-15-F1
RU3AM-LFC4
)
T551
33
QQLZ016-821
4700p
90Vp-p(H
0.15
4.7/250
8
)
T551
1140Vp-p(H
10
)
1.2
150k
1.2
FOR ADJ.
CONNECTOR
QQR1005-002
2.2k
2.2
100/160
134.2V
1k
133.8V
0V
5.0V
0V
2
)
9.1V
X
BW
6
)
9
)
XX
B
Q521
)
2Vp-p(H
)
QQD0044-001
DEF YOKE
No.51926 2-7 2-8 No.51926
NOTE
: OPTION(NON MOUNT
X
: BUS WIRE
BW
: NRSA63J-0R0X
0
: 2SC2412K/QR/-X
1
: MA111-X
3
)
Page 7
PATTERN DIAGRAMS [AV-21L31B/T]
MAIN PWB PATTERN
AV-21L31B AV-21L31B
B1
()
()
FRONT
2-9 2-10No.51926 No.51926
Page 8
MAIN(CRT SOCKET)PWB PATTERN
AV-21L31B
TOP
()
No.51926 2-11 2-12 No.51926
Page 9
BLOCK DIAGRAM [AV-29L31
,
AV-29L31B
/T
/T
AV-29L31
AV-29L31
AV-29L31B AV-29L31B
]
J801
VIDEO-1
INPUT
J802,J803
COMPONENT
(VIDEO-2)
INPUT
J804
OUTPUT
TU001
TUNER
VIDEO
AUDIO L/MONO
AUDIO R
V/Y
CB
CR
AUDIO L/MONO
AUDIO R
VIDEO OUT
AUDIO L
AUDIO R
SCL
SDA
IF
10
37
36
35
43
44
42
19
MAIN PWB
28
SF101
FILTER
SF102
FILTER
29,30
SCL
SDA
7
V1-V
8
V1-L
V1-R
3
V2-Y
2
V2-L
4
V2-R
Vout2
Lout2
Rout2
V3-V
L3-L
L3-R
Yin1
COUT1
YOUT1
IC801
VIDEO SW
MTV-V
MTV-R
MTV-L
Rout1
Vout1
Lout1
25
27
CB
CR
13
15
14
26
24
23
Q111
BUF
IC702
EEPROM
1
IC301
COMB
3
FILTER
5,6
16
14
CF106
29
23
24
2,3
62,63
43
42
47
48
46
TRAP
SIF IN1
SIF IN2
IF IN1
IF IN2
IC701
V/C DEF.
PROCESSOR
SCL,SDA
SCL1
SDA1
CIN
CVBS/YIN
Y
U
V
7
ROUT
GOUT
BOUT
QSS OUT
VDRB(-)
VDRA(+)
HOUT
IF VOUT
10
64
Q109
BUF
51
52
53
35
21,22
33
38
R
G
B
BUF
Q150
SCL
SDA
2
FILTER
IC665
IC601
MULTI SOUND
PROCESSOR
40
L, R
L_VOL, R_VOL
41
5
2
26,27
30,31
IC650
AUDIO AMP
7
12
CRT SOCKET PWB
IC101
VIDEO AMP
VM OUT
FRONT CONTROL
PWB (2/2)
V01
VM
J801
HEADPHONE
JACK
SP
L
SP
R
AC IN
J303
FRONT IN
(VIDEO-3)
VIDEO
AUDIO L/MONO
AUDIO R
TV/VIDEO
VOL+
REMOCON
RECEIVER
FRONT CONTROL PWB (1/2)
VOL- CH+ CH- MENU
POWER
LED
S901
POWER SW
F901
No.51926 2-13 2-14 No.51926
KEY_IN
REMOTE, LED
D901
RECT
IC901
POWER
REG
T901
SW
TRANSF.
PC901
VOLTAGE
FEEDBACK
IC951
ERROR
AMP
IC972
3.3V REG
IC973
12V REG
IC974
REG
L951
IC401
VERT OUT
Q522
H. OUT
3.3V_STB
12V
5V
8V
9V
32V
B1
T551
FBT
V
H
DY01
DEF YOKE
FOCUS1
FOCUS2
SCREEN
EHV
Page 10
AV-29L31
AV-29L31
AV-29L31B AV-29L31B
CIRCUIT DIAGRAMS [AV-29L31
MAIN PWB CIRCUIT DIAGRAM(1/2
TO
FRONT CONTROL
PWB CN001
TO
FRONT CONTROL
PWB CN00A
VIDEO-1
INPUT
COMPONENT
(
)
VIDEO-2
INPUT
OUTPUT
)
9.0V
4.4V
5.0V
,
AV-29L31B
/T
7
IC801
)
1.2Vp-p(H
IC801
2.2Vp-p(H
]
/T
23
)
4.9V
4.3V
4.9V
4.4V
4.9V
5.3V
7.0V
4.3V
4.3V
5.7V
4.9V
27
IC801
)
2.1Vp-p(H
4.4V
4.9V
4.3V
9.0V
4.4V
4.3V
4.4V
5.9V
4.9V
4.3V
4.3V
5.0V
4.2V
4.2V
1.7V
4.2V
3.4V
4.2V
5.1V
1.9V
4.1V
IC301
IC801
2.2Vp-p(H
1.1Vp-p(H
37
)
0V
8.3V
7.4V
0V
3.7V
3.7V
3.7V
3.7V
3.7V
0.1V
3.7V
0V
5.0V
1.5
0.2
9.0V
3.0V
2.4V
1.9V
2.6V
4.2V
1.9V
2.6V
2.6V
1.7V
2.3
V
2.6V
2.1
V
3
)
0.9V
1.4V
0V
4.9V
1.5V
1.6V
4.9V
1.5V
0V
5.0V
3.1V
0.5V
0.6V
0V
0.6V
V
V
5.0V
0V
0V
2.9V
2.9V
2.4V
2.4V
2.7
4.8V
5.0
5.0V
V
3.3V
5.0V
3.3V
2.7
V
5.0V
5.0V
1.7V
1.9V
5.0V
3.3V
3.3V
V
3.3V
5.0V
5.0
V
0V
3.3V
5.0V
1.8V
1.6V
3.3V
3.3
V
0V
0V
3.3V
1.5V
1.6V
5.0V
3.3V
2.8
0V
V
TO CRT SOCKET
PWB CN00T
2.8V
3.3V
0V
6.3V
3.1V
2.5V
1.94.22.4
2.6VV2.6
VVV
5.1V
2.7V
2.7V
3.8V
2.0V
4.0V
0V
3.0V
4.9V
8.3V
0V
9.0V
0V
4.3
V
8.3V
3.3V0V3.7V
1.5V
3.8V
1.9V
1.9V
0.8V
0.7V
3.6V
4.6
V
0V
3.9V
3.0
V
0.6
1.4V
V
2.0V
3.5V
2.6V
3.8V
2.1V
0
1.9
1.9
4.0V
V
V
V
IC701
IC701
1.0Vp-p(V
1.0Vp-p(V
21
)
22
)
MAIN PWB ASS’Y(1/2
SCH-1039A-H2(AV-29L31
SCH-1055A-H2(AV-29L31B
DIFFERENCE LIST(PARTS
SCH-1039A-H2
SCH-1055A-H2
SCH-1039A-H2
SCH-1055A-H2
SCH-1039A-H2
SCH-1055A-H2
10 F/50V
1 F/50V
2SC2412K/QR/-XAN5277
68k 33k
C652
100 F/50V
)
NOT USEDNOT USEDAN5275
10k 2.2 15
NOT USEDNOT USEDNOT USED
NOT USED
100 F/50V
No.51926 2-15 2-16 No.51926
)
2SA1037AK/QR/-X
)
/T
)
/T
Q688
NOT USED
NOT USED
10 F/50V
NOT USED
4.6V
-1.0V
5.0
V
22k 0
27k 2.7k
0.047 F/25V 0.018 F/50V
1
k
15k10kk
F/50V0.022
F/50V0.047 0.047 F/50V
33
IC701
)
2.8Vp-p(H
5.0
5.0V
V
0V
0V
0V
-0.3V
0V
0.6V
0.6V
R652R651R650Q661Q660IC650
02SC2412K/QR/-X
4.7k
27k
F/50V0.018
22.8
V
0V
-0.4V
0V
0V
R653
100k
15k
R678R675R670R667R664R663R662R661
2.7
0.022 F/50V
0V
00V
V
0V
16.9V
k10k
k
F/25V0.047
15.3V
11.5V
0.1V
11.4V24V
22k 0
NOT USEDNOT USED
R694
NOT USED
4.7k
NOT USEDNOT USED
4.7 F/50V 1000 F/10V
1k
NOT USED
6.8k
100 F/16V
0
4.7k 15k
C650R695
10 F/50V
1 F/50V
Y602C743C684C676C675C672C670C662C658C657
0
NOT USED
R657R656R655R654
100k
R660
10k
NOT USED
9.0V
1.5
V
2.2V
0V
0V
33.8V
0V
4.6V
8.6V
1.9V
1.7V
5.0V
5.0V
NOTE
X
BW
0
43
IC701
)
0.55Vp-p(H
51
IC701
)
3.4Vp-p(H
53
IC701
)
3.6Vp-p(H
: OPTION(NON MOUNT
: BUS WIRE
: NRSA63J-0R0X
: 2SA1037AK/QR/-X
2
: MA111-X
3
: DTC124EKA-X
5
: 2SC1740S/QR/-T
7
IC701
1.04Vp-p(H
IC701
1.6Vp-p(H
IC701
2.6Vp-p(H
42
)
47
)
52
)
)
Page 11
AV-29L31
AV-29L31
AV-29L31B AV-29L31B
MAIN PWB CIRCUIT DIAGRAM(2/2
DEG COIL
L01
TO
FRONT CONTROL
PWB CN00W
2.4V
0V
291V
19.6V
)
1.9
3.3V
V
1.7V
5.0V
3
IC401
)
30Vp-p(V
-13.1V
-15.2
0.9
V
0.3
V
V
14.6V
9.0V
2.0
2.0
1.9V
V
V
6.6V
2.5V
2.4
V
16.0V
0.6V
-0.1V
IC401
20Vp-p(V
6
)
14.4V
9.0V
0V
3.3V
5.3V
27.7V
6.7V
27.7
V
34.1V
11.3
V
11.7V
16.3
V
9.1V
9.6
2.7V
V
5.1
V
IC401
IC401
0.7Vp-p(V
2Vp-p(V
1
)
2
)
0.3
V
IC401
60Vp-p(V
IC401
5Vp-p(V
5
7
)
1140Vp-p(H
)
TO CRT SOCKET
PWB CN00U
7
T551
)
25Vp-p(H
3
T551
90Vp-p(H
)
)
134.2V
133.8V
0V
5.0V
0V
FOR ADJ.
CONNECTOR
19.8V
3.5V
19.8V
19.8V
NOTE
: OPTION(NON MOUNT
X
: BUS WIRE
BW
: NRSA63J-0RX
0
: 2SC2412K/QR/-X
1
: 2SA1037AK/QR/-X
2
: MA111-X
3
: DTC124EKA-X
5
DIFFERENCE LIST(PARTS
SCH-1039A-H2
SCH-1055A-H2 FSF05A20
2200 F/35V
2200 F/50V
)
MAIN PWB ASS’Y(2/2
SCH-1039A-H2(AV-29L31
SCH-1055A-H2(AV-29L31B
)
19.4V
20.6V
Q521
Q521
0V
2Vp-p(H
45Vp-p(H
B
)
C
)
Q522
2.4Vp-p(H
B
)
5
T551
150Vp-p(H)150Vp-p(H
2
T551
)
8Vp-p(H
T551
T551
96Vp-p(H
4
)
9
)
134.2V
26.6V
27.7V
0V
0V
0V
0.6V
)
)
/T
)
/T
K952K951D952C953
NOT USEDQQR1214-001YERC30-02L38
QQR1214-001YNOT USED
DEF YOKE
2-17 2-18No.51926 No.51926
Page 12
CRT SOCKET PWB CIRCUIT DIAGRAM
QJB003-083213
AV-29L31 AV-29L31
AV-29L31B AV-29L31B
TO
MAIN PWB
CN00T
2.8V
2.7V
12.0V
2.1V
2.6V
12.0V
2.0V
12.0V
2.0V
2.7V
2.8V
2.7V
3.5V
3.3V
3.4V
3.4V
3.3V
3.4V
12.0V
2.7V
12.0V
2.7V
12.0V
2.7V
IC101
150Vp-p(H
111V 108V
)
3.3Vp-p(H
3.1Vp-p(H
2.5Vp-p(H
2.7V
2.8V
)
)
2.7V 6.0V
207
-2.5V
154.5
V
V
-2.2V
104V
CE42670-001
BW
21.2V
22.7V
7
)
IC101
110Vp-p(H
8
)
IC101
150Vp-p(H
9
)
1.5
1W
QRZ9021-1R5
TO
MAIN PWB
CN00U
12.0V
11.4V
2.2V
3.3V
2.7V
4.6V
1.5V
CRT SOCKET PWB ASS’Y
SCH-3001A-H2
No.51926 2-19 2-20 No.51926
1.6V
6.4V
1V
7.7V
7.1V
12.0V
7.0V
7.0V
123V
3.2V
123.7V
64.0V
64.0V
2.7V
NOTE
: OPTION(NON MOUNT
X
: BUS WIRE
BW
: NRSA63J-0R0X
0
: 2SC2412K/QR/-X
1
: 2SA1037AK/QR/-X
2
: MA111-X
3
: 2SC1740S/QR/-T
7
: 2SA933AS/QR/-T
8
: CE41492-001Z
9
: LOW B GND
: HIGH B GND
(H)
)
Page 13
FRONT CONTROL PWB CIRCUIT DIAGRAM
TO
MAIN PWB
CN00W
TO DEG COIL
FRONT CONTROL PWB ASS’Y
SCH-8001A-H2
AV-29L31 AV-29L31
AV-29L31B AV-29L31B
0V
5.0
V
FRONT INPUT
(
)
VIDEO-3
0V
AC110V-240V
-1.4V
4.1V
0.2V
7.5V
7.5V
6.3V
6.5V
5.9V
5.6V
5.6V
7.6V
5.5V
5.5V
12V
TO MAIN PWB CN001
NOTE
: OPTION(NON MOUNT
X
: BUS WIRE
BW
: NRSA63J-0R0X
0
: 2SC2412K/QR/-X
1
: 2SA1037AK/QR/-X
2
: MA111-X
3
)
2-21 2-22No.51926 No.51926
TO SPEAKER
TO
MAIN PWB CN00A
Page 14
AV-29L31 AV-29L31
AV-29L31B AV-29L31B
PATTERN DIAGRAMS [AV-29L31
MAIN PWB PATTERN
,
AV-29L31B
/T
/T
]
B1
()
()
FRONT
No.51926 2-23 2-24 No.51926
Page 15
AV-29L31AV-29L31
AV-29L31B AV-29L31B
CRT SOCKET PWB PATTERN FRONT CONTROL PWB PATTERN
TOP
FRONT CONTROL(1/2
)
FRONT
()
()
FRONT CONTROL(2/2
()
FRONT
)
2-25 2-26No.51926 No.51926
Page 16
VICTOR COMPANY OF JAPAN, LIMITED
HOME AV NETWORK BUSINESS UNIT 12, 3-chome, Moriya-cho, kanagawa-ku, Yokohama, kanagawa-prefecture, 221-8528, Japan
AV21L31BT-H #4
AV29L31T-H #4
AV29L31BT-H #4
Printed in Japan
VP0201
SW
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