JVC AV-21V311/B, AV-21V511/B, AV-21V531/B Schematics
SCHEMATIC DIAGRAMS
FLAT COLOUR TELEVISION
BASIC CHASSIS
CH3
MUTING
SYSTEM
COLOUR SOUND
DISPLAY
Ι/ΙΙ
TV/VIDEO
OFF
TIMER
PICTURE
MODE
CHANNEL
SCAN
CHANNEL
CINEMA
SURROUND
MENU
123
456
789
+
RETURN
0-/
VOLUME
RM-C1305
TV
AV-21V311
AV-21V511
AV-21V531
/B
/B
/B
CD-ROM No. SML200310
POWER
ECO
SENSOR
--
MUTING
SYSTEM
COLOUR SOUND
DISPLAY
Ι/ΙΙ
TV/VIDEO
OFF
TIMER
PICTURE
MODE
CHANNEL
SCAN
CHANNEL
CINEMA
SURROUND
MENU
123
456
789
+
RETURN
0-/
VOLUME
RM-C1303
TV
POWER
ECO
SENSOR
--
MUTING BASS
SYSTEM
COLOUR SOUND
DISPLAY
Ι/ΙΙ
TV/VIDEO
OFF
TIMER
PICTURE
MODE
CHANNEL
SCAN
CHANNEL
CINEMA
SURROUND
MENU
123
456
789
+
RETURN
0-/
VOLUME
RM-C1307
TV
POWER
ECO
SENSOR
--
RM-C1305-1H
[AV-21V311/B]
RM-C1303-1H
[AV-21V511
RM-C1307-1H
/B
]
[AV-21V531/B]
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LTD.
No.52176
2003/9
AV-21V311/B, AV-21V511/B, AV-21V531/B
STANDARD CIRCUIT DIAGRAM
! !
!
! !
NOTE ON USING CIRCUIT DIAGRAMS
1. SAFETY
The components identified by the
critical for safety. For continued safety replace safety critical
components only with manufactures recommended parts.
!!
! symbol and shading are
!!
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 : DC 20kΩ/V
(4) Oscilloscope sweeping time : H ⇒ 20µs/div
(5) Voltage values : All DC voltage values
: Original setting position when
shipped
:V ⇒ 5ms/div
: Others ⇒ Sweeping time is
specified
∗Since the voltage values of signal circuit vary to some extent
according 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
∗Respective 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 : [Ω]
k:[kΩ]
M:[MΩ]
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
∗Composition 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]
∗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
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. 52176) 2-1
CONTENTS
SEMICONDUCTOR SHAPES................................................................................................................................. 2-2
BLOCK DIAGRAM ......................................................................................................................................................... 2-3
CIRCUIT DIAGRAMS
MAIN PWB CIRCUIT DIAGRAM (1/3) [AV-21V311/B] ................................................................................................. 2-5
MAIN PWB CIRCUIT DIAGRAM (2/3) [AV-21V311/B] ................................................................................................. 2-7
MAIN PWB (CRT SOCKET) CIRCUIT DIAGRAM (3/3) [AV-21V311/B] ................................................................... 2-8
MAIN PWB CIRCUIT DIAGRAM (1/3) [AV-21V511/B, AV-21V531/B]....................................................................... 2-9
MAIN PWB CIRCUIT DIAGRAM (2/3) [AV-21V511/B, AV-21V531/B]..................................................................... 2-11
MAIN PWB (CRT SOCKET) CIRCUIT DIAGRAM (3/3) [AV-21V511/B, AV-21V531/B] ....................................... 2-12
PATTERN DIAGRAMS
MAIN PWB PATTERN ...................................................................................................................................................... 2-13
VOLTAGE CHART ........................................................................................................................................................ 2-15
WAVEFORMS .................................................................................................................................................................. 2-16
SEMICONDUCTOR SHAPES
TRANSISTOR
TOP VIEWBOTTOM VIEW FRONT VIEW
CHIP TR
E
C
B
ECB
EC
B
(G)(D)(S)
ECB
ECB
C
B
E
IC
CHIP IC
TOP VIEWBOTTOM VIEW FRONT VIEW
OUT
E
IN
IN E OUT
N
N
N
1
N
1N
TOP VIEW
1
N
1N
1N
2-2 (No. 52176)
CONTROL
J801
VIDEO-1
INPUT
T551
FBT
B1
FOCUS
IC702
MEMORY
TU001
TUNER
VIDEO
SW1
Y
C
S1
V1-Y
V1-C
Y
in
1
V1-V
V1-L
V1-R
V2-Y
V2-C
V2-V
V2-L
V2-R
V3-V
V3-L
V3-R
Vout2
Lout2
Rout2
AUDIO L/MONO
AUDIO R
IF
IC351
RGB OUT
SCL
SDA
MAIN PWB
(CRT SOCKET)
IC401
VERT OUT
J802,J803
COMPONENT
(VIDEO-2)
INPUT
C
B
C
R
AUDIO R
J771-J773
FRONT IN
(VIDEO-3)
VIDEO
AUDIO L/MONO
AUDIO R
J804
OUTPUT
AUDIO L
AUDIO R
VOL+
REMOCON
RECEIVER
VOL- CH+ CH- MENU
Q522
H. OUT
SCREEN
EHV
V
H
DY01
DEF YOKE
V/Y
AUDIO L/MONO
VIDEO OUT
SF101
SAW FILTER
SF102
SAW FILTER
CF106
TRAP
Q111
BUFFER
C
B
C
R
Q109
BUFFER
AC IN
F901
POWER SW
D901
RECT
T901
SW
TRANSF.
IC974
REG
L951
STB
5V
5V
8V
9V
32V
IC951
ERROR
AMP
PC901
VOLTAGE
FEEDBACK
IC901
POWER
REG
MAIN PWB
28, 29
SIF IN
IF IN
U
V
Y
CVBS
/YIN
CIN
KEY IN
SCL,
SDA
SCL1,
SDA1
REMOTE,
LED OUT
5,6
R
G
B
KEY_IN
REMOTE, LED
S901
IC972
3.3V REG
STB3.3V
V01
1, 7
5
VIDEO
SW
VIDEO
IDENT.
VIDEO
FILTER
PAL/
SECAM/
NTSC
DEMOD
TELETEXT
ACQUI.
CHARA.
GEN.
OSD
YUV
SELECT
RGB
MATRIX
INSERT
SYNC
SEP.
VIDEO
DETECT
QSS
SOUND
I2C
I/O
PORT
CPU
ROM
RAM
29,30
15
14
13
23
26
24
25
19
27
10
8
7
12
SCL,SDA
Yout1
Cout1
MTV-V
MTV-L
MTV-R
Vout1
Lout1
Rout1
11
9
3
5
1
4
2
37
36
35
43
44
42
47
48
46
42
43
62,63
7
10,64
2,3
23, 24
51
52
53
21,22
33
38
35QSS OUT
IF VOUT
ROUT
GOUT
BOUT
HOUT
VDRA,
VDRB
IC801
VIDEO/AUDIO SW
IC701 MAIN MICROCOMPUTER, TELETEXT DECODER,
VIDEO/SYNC/DEF PROCESSOR
Q150
BUFFER
CF130
4.5 FILTER
Q132
BUFFER
Q130
BUFFER
V.DRIVE
H.DRIVE
POWER
LED
L,R
10
30, 31
21
SCL
SDA
4
3
9
SCL
SDA
1
32
7
6
26
IC602 AUDIO CONTROL
VOL1
VOL1
TONE VOL2
LPF VOL2
TONE VOL2
SURROUND
PROCESS
I2C
IC650
AUDIO AMP
IC601
MULTI SOUND
PROCESSOR
SPEAKER
L
SPEAKER
R
J770
HEADPHONE
13
23
20
J774
BASS
SPEAKER OUT
[AV-21V531/B]
CF140
5.5 FILTER
Q137
BUFFER
Q136
BUFFER
IC130
SOUND
DETECT
11
[AV-21V311/B]
[AV-21V511/B, AV-21V531/B]
BLOCK DIAGRAM
No. 52176
2-3 2-4
No. 52176
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