Page 1
SCHEMATIC DIAGRAMS
COLOUR TELEVISION
AV-16N7(VT)
AV-16N7
AV-16N7
+−
+
−
COPYRIGHT 2000 VICTOR COMPANY OF JAPAN, LTD.
No. 56093 2-1
No. 56093
Sep. 2000
Page 2
AV-16N7
2-2 No. 56093
Page 3
STANDARD CIRCUIT DIAGRAM
AV-16N7
■ 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.
2. SPECIFIED VOL T AGE AND W AVEFORM V ALUES
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
* 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. INDICATIONS ON THE CIRCUIT DIAGRAM
(1)Resistors
● Resistance value
No unit : [Ω]
K: [KΩ]
M : [MΩ]
● Rated allowable power
No indication : 1/4 [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
* 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]
!!
! symbol and shading are
!!
: Original setting position when
shipped
: V ➞ 5mS/div
: Others ➞ Sweeping time is
specified.
● 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
: 12V
: 9V
: 5V
* Respective 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
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 ISOLA TED (NEU-
TRAL) side GND or never 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.
No. 56093 2-3
Page 4
AV-16N7
CONTENTS
SEMICONDUCTOR SHAPES ........................................................... 2-4
BLOCK DIAGRAM ............................................................................ 2-5
CIRCUIT DIAGRAMS
MAIN PWB CIRCUIT DIAGRAM (Including CRT SOCKET PWB) ......................................... 2-7
PATTERN DIAGRAMS
MAIN PWB PATTERN............................................................................................................. 2-11
CRT SOCKET PWB PATTERN............................................................................................... 2-13
SEMICONDUCTOR SHAPES
TRANSISTOR
BOTTOM VIEW
E
C
B
IC
BOTTOM VIEW
OUT
E
IN
CHIP IC
E
CB
IN E OUT
B
(G)C(D)E(S)
FRONT VIEW
1N
TOP VIEW
TOP VIEW
CHIP TR
C
E
CB
E
CB
1N
BE
TOP VIEWFRONT VIEW
1N
N
N
N
1
N
2-4 No. 56093
1
N
Page 5
BLOCK DIAGRAM
OUT
IN
MAIN PWB
TU001
TUNER
Q102
IF AMP
Q103
SW
IC703
5V REG/RESET
IC701
MICRO COMPUTER
SF102
SF122
IC301
1 CHIP DECODER
IC651
AUDIO AMP
ECO
REMOCON
KEY
IND.
FRONT IN
HEADPHONE
SP01
SP01
VIDEO
AUDIO
(WITHIN MAIN PWB)
OUT
9
3
30
AUDIO OUT
RGB
10,11,12
42 46
H.OUT V.OUT
AUDIO
IN
VIDEO
OUT
VIDEO
IN
EXT
RGB
6,7,8
24 36 29
21 18,19
SAWQSS IN
IF
IC702
MEMORY
34
RST
SCL
SDA
3.58/
OTH
SCL
SDA
2537,38
OSD
RGB
30,31,32
SCL/SDA
REAR
F901
POWER SW
AC IN
VIDEO
AUDIO
VIDEO
AUDIO
D901
RECT
IC921
POWER
REG.
T921
SW
TRANSF.
IC941
ERROR
AMP
PC921
VOLTAGE
FEEDBACK
IC971
5/9V REG.
Q522
H.OUT
IC421
V.OUT
V01
CRT
CRT SOCKET PWB
Q351-Q353
RGB OUT
TP-B1
5V
H.OUT
V.OUT
52
FOCUS
DY(V)
DY(H)
SCREEN
EHV
9V
T522
HVT
DEF. YOKE
R/G/B
IN
2,3
AV-16N7 AV-16N7
No. 56093 No. 560932-62-5
Page 6
AV-16N7 AV-16N7
CIRCUIT DIAGRAMS
MAIN PWB CIRCUIT DIAGRAM (1/2)
No. 56093 2-7 No. 560932-8
SCG-1250A-CK (AV-16N7-VT)
Page 7
MAIN PWB CIRCUIT DIAGRAM (2/2)
AV-16N7 AV-16N7
CRT SOCKET
(WITHIN MAIN PWB)
No. 56093 No. 560932-62-5
SCG-1250A-CK (AV-16N7-VT)
2-102-9
Page 8
AV-16N7 AV-16N7
PATTERN DIAGRAMS
FRONT
( )
MAIN PWB PATTERN
TP-E
( )
TP-91
(B1)
No. 56093 2-7 No. 560932-8
2-122-11
Page 9
CRT SOCKET PWB PATTERN
AV-16N7
TOP
( )
No. 56093 2-13
Page 10
AV-16N7
VICTOR COMPANY OF JAPAN, LIMITED
TELEVISION RECEIVER DIVISION 1106 Heta, Iwai-city, Ibaraki-prefecture, 306-0698, Japan
No. 560932-14
Printed in Japan
CTH 0009
CRT
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