Page 1
AV21BT7ENS / AV21BT7ENB
AV21BT7EPS / AV21BT7EPB
AV21BT7EES / AV21BT7EEB
SCHEMATIC DIAGRAMS
COLOUR TELEVISION
AV21BT7ENS / AV21BT7ENB
AV21BT7EPS / AV21BT7EPB
AV21BT7EES / AV21BT7EEB
CD-ROM No.SML200201
CONTENTS
NOTE ON USING CIRCUIT DIAGRAMS
SEMICONDUCTOR SHAPES
BLOCK DIAGRAM
WAVEFORM DIAGRAM
CIRCUIT DIAGRAMS
PATTERN DIAGRAMS
VOLTAGE TABLE
COPYRIGHT 2001 VICTOR COMPANY OF JAPAN, LTD.
2-1
2-2
2-3
2-4
2-5
2-11
2-15
No.51878
Dec. 2001
Page 2
AV21BT7ENS / AV21BT7ENB
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 critical
components only with manufactures recommended parts.
2.SPECIFIED VOLTAGE AND WAVEFORM VALUES
The voltage and waveform values have been measured under the
foll owin g condition s.
(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)Oscil loscope sweeping time
:H
20µS/div
:V
5mS/div
:Others
Sweeping time is
specified
(5)Voltage values
:All DC voltage values
Sin ce the voltage values of si gnal 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.INDICATIONS ON THE CIRCUIT DIAGRAM
(1)Resistors
Resistance value
No unit :[
]
K
:[K
]
M
Rated allowable power
No indication :1/ 16 [ W]
Others :As specified
Ty pe
No indication
:Carbon resistor
OM R
:Oxide metal film resistor
MFR
:Met al film resi stor
MPR
:Metal plate resistor
UNFR
:Uninflammable resistor
FR
:Fusible resistor
Composition resistor 1/2 [W] is specified as 1/2S or Comp.
(2)Capacitors
: Original setting position
when shipped
5.NOTE FOR REPAIRING SERVICE
This model's power circuit is partly different in the GND. The
difference of the GND is s hown 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 e xample, 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 a ny n otice.
NOTE
Due improvement in performance, some par t numbers show
in th e ci rcuit dia gram may not agree wi th those indicated i n
the part list.
When ordering parts, please use the numbers that appear
in the Part s List .
Ty pe
MM
:Metalized mylar capacitor
PP
:Polypropylene capacitor
MPP
:Metalized polypropylene capacitor
MF
:Metalized film capa citor
TF
:Thin film capacitor
BP
:Bipolar electrolytic capacitor
TAN
:Tantalum capacitor
(3) Coi ls
No unit
:[
µ
H]
Others
:As specified
(4)Power Supply
:B1
:9V
:5V
Respective voltage values are indicated
(5)Test point
:Test p oint
:Only test point display
(6)Connecti ng me thod
:Connector
:Wrapping or soldering
:Receptacle
(7)Ground symbol
:LIVE side ground
:ISOLATED(NEUTRAL) side ground
:EARTH ground
:DIGITAL ground
:[M ]
Capacitance valu e
1 or higher :[pF]
less than 1
:[µF]
Withstand voltage
No indication :DC50[V]
Others :DC withstand voltage [V]
AC indicated
:AC withstand voltage [V]
Electrolytic C apacitors
47/50[Example]:Capacitance value [µF]/withstand voltage[V]
No indication
:Ceramic capacitor
:B2 (12V)
AV21BT7EPS / AV21BT7EPB
AV21BT7EES / AV21BT7EEB
WAVEFORM DIAGRAM
MAIN PWB
AV21BT7ENS / AV21BT7ENB
AV21BT7EPS / AV21BT7EPB
AV21BT7EES / AV21BT7EEB
Q802 D
8Vp-p(H) 1.7Vp-p(H) 0.7Vp-p(H) 1.4Vp-p(H)
IC401 6pin IC050 6pin IC050 17pin
IC401 17pin
0.7Vp-p(H) 0.8Vp-p(H) 0.9Vp-p(H) 2Vp-p(H)
IC401 20pin
2Vp-p(H) 2Vp-p(H) 1Vp-p(H) 450Vp-p(H)
IC401 30pin
IC401 21pin
IC401 29pin IC401 19pin
Q605 5pinIC401 40pin
0.6Vp-p(V) 4.8Vp-p(V) 0.5Vp-p(V) 1.2Vp-p
CRT SOCKET PWB
35Vp-p(H) 35Vp-p(H) 35Vp-p(H)
2-4
IC501 34pinIC701 9pinIC401 47pin IC701 1pin
IC901 9pinIC901 8pinIC901 7pin
No.51878
Dec. 2001 No. 51878
Page 3
AV21BT7ENS / AV21BT7ENB
AV21BT7EPS / AV21BT7EPB
AV21BT7EES / AV21BT7EEB
CONTENTS
AV21BT7ENS / AV21BT7ENB
AV21BT7EPS / AV21BT7EPB
AV21BT7EES / AV21BT7EEB
BLOCK DIAGRAM
SEMICONDUCTOR SHA PES
BLOCK DIAGRAM
WAVEFORM DIAGRAM
CIRCUIT DIAGR AMS
MAIN PWB CIRCUIT DIAGRAM
MULTISOUND PWB CIRCUIT DIAGRAM
CRT SOCKET PWB CIRCUIT DIAGRAM
HEADPHONE JACK PWB CIRCUIT DIAGRAM
FRONT AV PWB CIRCUIT DIAGRAM
PATTERN D IAGRAMS
MAIN, FRONT AV & HEAD PHONE JACK PWB PATTERN
MULTISOUND & CRT SOCKET PWB PATTERN
VOLTAGE TABLE
SEMICONDUCTOR SHA PES
TRANSISTOR
BOTTOM V IEW
E
C
B
ECB
BCE
(G)(D)(S )
FRONT VI EW
ECB
ECB
2-2
2-3
2-4
2-5
2-7
2-9
2-9
2-10
2-11
2-13
2-15
TOP VIEW
CHIP TR
C
BE
IC
BOTTOM VIEW FRONT VIEW TOP VIEW
OUT
E
IN
IN OUTE
1 N
1 N
CHIP IC
TOP VIEW
N
N
N
1
N
1
N
1
N
2-2
No.51878No.51878
2-3
Page 4
CIRCUIT DIAGRAMS
MAIN PWB CIRCUIT DIAGRAM
AV21BT7ENS / AV21BT7ENB
AV21BT7EPS / AV21BT7EPB
AV21BT7EES / AV21BT7EEB
AV21BT7ENS / AV21BT7ENB
AV21BT7EPS / AV21BT7EPB
AV21BT7EES / AV21BT7EEB
MAIN PWB
VE-20073428(AV21BT7ENS/ENB) VE-20073414(AV21BT7EPS/EPB) VE-20073418(AV21BT7EES/EEB)
No.51878
2-5 2-6
No.51878
Page 5
MULTISOUND PWB CIRCUIT DIAGRAM
AV21BT7ENS / AV21BT7ENB
AV21BT7EPS / AV21BT7EPB
AV21BT7EES / AV21BT7EEB
AV21BT7ENS / AV21BT7ENB
AV21BT7EPS / AV21BT7EPB
AV21BT7EES / AV21BT7EEB
MULTISOUND PWB
VE-20078991(AV21BT7ENS/ENB, AV21BT7EES/EEB)
VE-20079020(AV21BT7EPS/EPB)
No.51878 No.51878
2-7 2-8
Page 6
CRT SOCKET PWB CIRCUIT DIAGRAM
CRT SOCKET PWB
VE-20074437
AV21BT7ENS / AV21BT7ENB
AV21BT7EPS / AV21BT7EPB
AV21BT7EES / AV21BT7EEB
AV21BT7ENS / AV21BT7ENB
AV21BT7EPS / AV21BT7EPB
AV21BT7EES / AV21BT7EEB
HEADPONE JACK PWB CIRCUIT DIAGRAM
HEADPHONE JACK PWB
VE-20075217
FRONT AV PWB CIRCUIT DIAGRAM
FRONT AVPWB
VE-20076582
No.51878
2-9 2-10
No.51878
Page 7
PATTERN DIAGRAMS
MAIN PWB PATTERN
AV21BT7ENS / AV21BT7ENB
AV21BT7EPS / AV21BT7EPB
AV21BT7EES / AV21BT7EEB
AV21BT7ENS / AV21BT7ENB
AV21BT7EPS / AV21BT7EPB
AV21BT7EES / AV21BT7EEB
FRONT AV PWB PATTERN
FRONT
FRONT
HEADPHONE JACK PWB PATTERN
No.51878 No.51878
2-11 2-12
TOP
Page 8
AV21BT7ENS / AV21BT7ENB
AV21BT7EPS / AV21BT7EPB
AV21BT7EES / AV21BT7EEB
AV21BT7ENS / AV21BT7ENB
AV21BT7EPS / AV21BT7EPB
AV21BT7EES / AV21BT7EEB
MUTTISOUND PWB PATTERN CRT SOCKET PATTERN
TOP TOP
No.51878
2-13 2-14
No.51878
Page 9
VOLTAGE TABLE
MAIN PWB
IC050
PIN NO.
1
2
3
4
5
6
7
8
9
10
IC401
PIN NO.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
IC801
PIN NO.
IC802
PIN NO.
1
2
3
4
5
6
7
8
IC804
PIN NO.
1
2
3
IC807
PIN NO.
VOLTAGE
2.8
4.5
2.8
4.5
2.9
3.1
0
2.9
7.8
3.9
VOLTAGE
1
2
3
4
5
6
7
8
9
1
2
3
0.1
3.6
0
0
2.4
2.8
4.5
4.5
6.6
0.1
3.6
7.8
3.8
0
3
0.1
3.6
3.6
3
3
3
3
3.6
3.6
3.6
0.1
0.1
2.7
VOLTAGE
12.4
11.3
0
VOLTAGE
11.9
11.6
0.1
0
0.9
0.1
0.2
0.2
PIN NO.
11
12
13
14
15
16
17
18
19
20
PIN NO.
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
PIN NO.
4
5
6
PIN NO.
9
10
11
12
13
14
15
16
IC805
VOLTAGE
3.4
2.1
12.4
1
2
3
VOLTAGE
9.9
0
5
PIN NO.
1
2
3
VOLTAGE
3.7
0
4.0
4.0
2.1
4.0
2.7
4.0
0
2.8
VOLTAGE
2.4
2.3
0
0
0
2.5
2.5
4.7
7.8
2.9
4.9
0.1
0.1
3.4
3.9
0
3.4
2.4
2.4
4.5
4.5
2.0
3.7
3.8
4.2
2.6
3.0
3.3
VOLTAGE
2.6
11.9
0.1
VOLTAGE
0.9
2.6
2.4
0.1
3.1
2.5
2.5
2.5
VOLTAGE
12.3
0
7.9
AV21BT7ENS / AV21BT7ENB
AV21BT7EPS / AV21BT7EPB
AV21BT7EES / AV21BT7EEB
AV21BT7ENS / AV21BT7ENB
AV21BT7EPS / AV21BT7EPB
AV21BT7EES / AV21BT7EEB
MULTI SOUND PWB
IC701
PIN NO.
1
2
3
4
5
IC100
PIN NO.
1
2
3
4
5
IC501
PIN NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
IC502
PIN NO.
1
2
3
4
VOLTAGE
2.3
2.3
15
7.1
0
VOLTAGE
0
12.7
0
0
-12.8
VOLTAGE
0.7
0
0
3.3
3.3
3.3
3.3
0
2.4
0
3.4
0.8
2.4
0
0.1
0
0
2.4
0.3
0.2
0
2.1
3.3
3.8
3.1
3.0
VOLTAGE
0
0
0
0
PIN NO.
6
7
8
9
PIN NO.
6
7
8
9
PIN NO.
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
PIN NO.
5
6
7
8
VOLTAGE
44.5
7.5
0.3
7.1
VOLTAGE
0
12.8
0
0
VOLTAGE
0
0
0
3.3
3.3
3.3
3.3
0.5
0.5
0
2.4
0.2
0.2
0.2
0
2.4
0
3.3
0
3.4
3.4
3.4
3.4
3.4
3.4
3.4
VOLTAGE
3
3
3.4
3
Note)
Although the symbol numbers of the level
drive transistor and level output
transistor are indicated as Q604 and Q606 on
the wiring diagram, the numbers
are indicated as Q601 and Q605 on the
substrate, respectively. The following
table shows the silk-printed symbol numbers
on the substrate.
E(D) C(S) B(G)
Q055 0.1 7.8 0.1
Q100 0 12.7 0
Q501 2.5 0 2.5
Q512 5.4 3.4 4.8
Q514 0 4.8 0
Q515 4.5 3.2 2.3
Q516 3.2 4.5 2.4
Q517 4.5 3.2 2.4
Q518 3.2 4.5 2.4
Q601 0 0 0.1
Q605 0 --- 0.1
Q701 0 0 0
Q702 0 0 0.6
Q802 167 0 0.1
Q805 0 0 0.6
Q806 0 0 0.6
Q807 0 11.3 0
Q809
Cathode:11.3V
Anode:0V
Control terminal:2.4V
IC301
PIN NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
IC304
PIN NO.
1
2
3
4
IC307
PIN NO.
10
11
12
13
14
Q301
VOLTAGE
2.5
0
0
4.9
0
0
4.9
0
4.5
4.5
2.4
2.4
2.4
0.1
0.1
0.1
0
4.8
0
0
0
0
0
4.9
0.1
0.1
0
0
0
0
0
0
VOLTAGE
2.4
2.4
2.4
0
VOLTAGE
1
2
3
4
5
6
7
8
9
E(D)
4.8
3.2
3.2
4.9
0
0.1
2.4
2.4
2.2
0
2.7
0
2.1
5.0
0
C(S)
4.8
PIN NO.
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
PIN NO.
5
6
7
8
PIN NO.
15
16
17
18
19
20
21
22
23
24
25
26
27
28
B(G)
4.1
CRT SOCKET PWB
IC901
PIN NO.
1
2
3
4
5
No.51878 No.51878
2-15 2-16
VOLTAGE
3.2
2.9
3.2
0
6.0
PIN NO.
6
7
8
9
VOLTAGE
3.7
3.7
0
3.7
3.7
6.8
7.8
6.5
0
3.6
3.7
3.7
0
3.7
3.7
0
3.7
3.7
0
3.7
3.7
2.6
3.7
0
4.9
0.1
0.1
0.1
0
2.3
2.3
0
VOLTAGE
2.4
2.4
2.4
4.9
VOLTAGE
0.1
0
4.3
3.0
3.5
3.3
3.3
3.3
3.5
4.5
0
3.4
0.1
0.1
VOLTAGE
0.1
0.1
0.1
0.1
82
,2 $
Page 10
AV21BT7ENS / AV21BT7ENB
AV21BT7EPS / AV21BT7EPB
AV21BT7EES / AV21BT7EEB
VICTOR COMPANY OF JAPAN, LIMITED
HOME AV NETWORK BUSINESS UNIT. 12, 3-chome, Moriya-cho, Kanagawa-ku, Yokohama, Kanagawa-prefecture, 221-8528, Japan
Printed in Japan
VP 0112
DP2070
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