JVC AV-21D33, AV-21D13, AV-20N33, AV-20N13 Diagram
AV-21D13,AV-20N13
AV-21D33,AV-20N33
SCHEMATIC DIAGRAMS
COLOUR TELEVISION
AV-21D13/PH AV-21D33/PH AV-20N13/PH AV-20N33/PH
CD-ROM No.SML200208
BASIC CHASSIS
GA2
+
+
−
RM-C372GY
[AV-21D13/PH]
[AV-20N13/PH]
−
RM-C373GY
[AV-21D33/PH]
[AV-20N33/PH]
CONTENTS
NOTE ON USING CIRCUIT DIAGRAMS
SEMICONDUCTOR SHAPES
BLOCK DIAGRAM
CIRCUIT DIAGRAMS
PATTERN DIAGRAMS
CHANNEL CHART
COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD.
[AV-21D13/PH]
[AV-21D33/PH]
[AV-20N13/PH]
[AV-20N33/PH]
2-1
2-2
2-3
2-7
2-15
2-21
No.52022
Jul. 2002
AV-21D13,AV-20N13
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 repla ce safety critic al
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
:DC 20k
/V
(4)Oscilloscope sweeping time
:H
20µS/div
:V
5mS/div
:Others
Sweeping time is
specified
(5)Voltage values
:All DC voltage values
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
4.IND ICATIONS ON THE CIRCUIT DIAG RAM
(1)Resistors
Resistance value
No unit :[
]
K
:[K
]
M
Rated allowable po wer
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
:Uninf lammable resistor
FR
:Fusible resistor
Compos ition resistor 1/2 [W] is specified as 1/2S or Comp.
(2)Capacitors
: Original setting position
when shipped
5.NOT E FOR RE PAIR ING SERVICE
This mod el's power cir cuit is pa rtly diffe rent 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 agr ee with those indicated in
the part list.
When ordering parts, plea se use t he numbers that appear
in the Parts List.
Type
MM
:M eta lized mylar cap ac i tor
PP
:Polypropylene capacitor
MPP
:Metalized polypropylene capacitor
MF
:Metaliz ed film capacitor
TF
:Thin f ilm capacitor
BP
:Bipolar electrolytic capaci tor
TAN
:Tant alum capacitor
(3)Coils
No unit
:[
µ
H]
Others
:As specified
(4)Power Supply
:B1
:9V
:5V
Respective voltage values are indicated
(5)Test point
:T est point
:Only test p oint display
(6)Connecting method
:Connector
:Wrapping or soldering
:Receptacle
(7)Ground symbol
:LIVE side ground
:ISOLATED(NEUTRAL) side groun d
:EARTH ground
:DIGITAL ground
:[M ]
Capacitance value
1 or higher :[pF]
less than 1
:[µF]
Withstand v oltage
No indication :DC50[V]
Others :DC withstand voltage [V]
AC indicated
:AC withstand voltage [V]
Electrolytic Capacitors
47/50[Example]:Capacitance value [µF]/withstand voltage[V]
No indication
:Ceramic capacitor
:B2 (12V)
AV-21D13
/PH
,AV-21D33
/PH
AV-20N13
/PH
,AV-20N33
/PH
AV-21D33,AV-20N33
CONTENTS
AV-21D13,AV-20N13
AV-21D33,AV-20N33
SEMICONDUCTOR SHAPES
BLOCK DIA GRAM
[AV-21D13,AV-20N13]
[AV-21D33,AV-20N33]
CIRCUIT DIAGRAMS
[AV-21D13,AV-20N13]
MAIN PWB CIRCUIT DIAGRAM
MAIN PWB & CRT SOCKET PWB CIRCUIT DIAGRAM
[AV-21D33,AV-20N33]
MAIN PWB CIRCUIT DIAGRAM
MAIN PWB & CRT SOCKET PWB CIRCUIT DIAGRAM
P ATTERN DIAGRAMS
[AV-21D13,AV-20N13]
MAIN PW B PATTERN
CRT SOCKET PWB PATTERN
[AV-21D33,AV-20N33]
MAIN PW B PATTERN
CRT SOCKET PWB PATTERN
CHANNEL CHART
SEMICONDUCTOR SHAPES
TRANSISTOR
BOTTOM VIEW
IC
B O TT OM VI EW F R O NT V IEW TO P VI EW
CHIP IC
2-2
E
C
B
OUT
E
IN
N
N
N
1
N
ECB
(Within MAIN PWB )
(Within MAIN PWB )
IN OUTE
BCE
(G)(D)(S)
FRONT VIEW
ECB
1 N
TO P VI EW
1
N
No.52022
ECB
1 N
CHIP TR
1
TO P VI EW
C
BE
N
2-2
2-3
2-5
2-7
2-9
2-11
2-13
2-15
2-19
2-17
2-20
2-21
Jul. 2002 No. 52022
BLOCK DIAGRAM [AV-21D13,AV-20N13]
SP(R)
SP(L)
AV-21D13,AV-20N13
AV-21D33,AV-20N33
V2
A2
AV
INPUT
AV-21D13,AV-20N13
AV-21D33,AV-20N33
IC601
AUDIO AMP
3 9
IC651
AUDIO SW
4
KEY
IC703
REMOCON
RECEIVER
C V IN
KEY-1,KEY-
17
2
REMOCON
IC701
MICRO COMPUTER
R.G.B.
OUT
92910
V01
CRT
CRT SOCKET
PWB
IC704
IC251
MEMORY
VIDEO SW
YS R G B
39 42
21 18
41
19 20
40
13 1214
RGB
OUT
IC201
V/C & DEF
72
1 4
8
C IN
42
VIDEO IN
45
AV
INPUT
V1
A1
AV
OUT PUT
V
A
ANT INPUT
TU001
TUNER
IF1
A1,A2
V1,V2
V TV
Q101
AMP
SF10
SAW F.
MAIN PWB
Q201, Q202
BUFFER
CF131
TRAP
1
4
5
18
V. OUT
IC101
IF
10
FM. OUT
No.52022
2-3 2-4
No.52022
BLOCK DIAGRAM [AV-21D33,AV-20N33]
SP(R)
AV-21D13,AV-20N13
AV-21D33,AV-20N33
SP(L)
V2
AV INPUT
L2
AV-21D13,AV-20N13
AV-21D33,AV-20N33
R2
AV
INPUT
V1
L1
IC601
IN OUT
RL
1 2 11 13
AUDIO AMP
LR
IC651
MTS & TONE/VOL CONT.
IN
R2 L2
40 41
36
R1 L1
37
IN
R1
38 39
L1
KEY
IC703
REMOCON
RECEIVER
C V IN
KEY-1,KEY-
17
2
REMOCON
IC701
MICRO COMPUTER
R.G.B.
OUT
92910
V01
CRT
CRT SOCKET
PWB
IC704
MEMORY
7
OUT
L
R
25
26
R2,L2
V TV
IC251
1 4
VIDEO SW
6
V2
V1
8
C IN
42
YS R G B
39 42
21 18
41
19 20
IC201
V/C & DEF
40
13 1214
RGB
OUT
VIDEO IN
45
201, Q202
BUFFER
R1
AV
OUT PUT
V
L
R
ANT INPUT
L OUT
R OUT
TU001
TUNER
IF1
CF131
TRAP
Q101
AMP
SF101
SAW F.
4
5
18
V. OUT
IC101
IF
MAIN PWB
No.52022 No.52022
2-5 2-6
10
FM. OUT
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