AV-20N4
No. 56029
1
BASIC CHASSIS
CG
SERVICE MANUAL
COLOUR TELEVISION
AV-20N4(NS)
AV-20N4
COPYRIGHT
© 2000 VICTOR COMPANY OF JAPAN, LTD.
No. 56029
Jul. 2000
HOW TO IDENTIFY MODEL
While referring to the illustration given below, identify model name on the rating label affixed to the rear cover.
This service manual mainly consists of the following items:
· The items which differ from those for the AV-20N4(BK) service manual.
· The initial value for each setting item.
For details other than those described in this manual, please refer to the following service manual.
Reference Service Manual: AV-20N4(BK) Service Manual (No. 56028, Jul. 2000)
Note: The page in parentheses shows the one for the AV-20N4(BK) service manual (No. 56028, Jul. 2000).
MODEL NO.
XXXXX XXXXXXX
XXXXXXX XXXXX
XXXXXX
XXXXX
XXX XXXXX XXXXX
XXXXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXX
SERIAL No.
XXXXXXXXX
XXXX XX XXXX
XXX XX XXXX
Identify model name
Basic model name
AV-20N4
AV-20N4-NS
AV-20N4
No. 56029
2
AV-20N4(BK)
AV-20N4(NS)
!
!
!
!
!
REF. NO.
PART NAME
DESCRIPTION
PART No.
PART No.
s EXPLODED VIEW PARTS LIST (Page 28)
!
L01
QQW0061-001
QQW0089-001
DEG COIL
1
LC10438-014A-H
LC10438-015A-H
FRONT CABINET
!
14
QMPR010-200-E2
QMP40D0-200J5
POWER CORD
or QMPR010-200-K2
or QMP40D0-200J3
!
16
CM22960-072-H
CM22925-001
RATING LABEL
s PRINTED WIRING BOARD PARTS LIST (Page 30)
--
SCG-1236A-BK
SCG-1251A-H2
MAIN PWB ASSY
R1161
NRSA02J-102X
CH MG R
1k
1/10W
J
R1162
NRSA02J-122X
CH MG R
1.2k
1/10W
J
R1163
NRSA02J-222X
CH MG R
2.2k
1/10W
J
R1164
NRSA02J-221X
CH MG R
220
1/10W
J
R1165
NRSA02J-220X
CH MG R
22
1/10W
J
R1166
NRSA02J-821X
CH MG R
820
1/10W
J
R1771
NRSA02J-222X
CH MG R
2.2k
1/10W
J
NRSA02J-821X
CH MG R
820
1/10W
J
R1773
NRSA02J-122X
CH MG R
1.2k
1/10W
J
R1901
QRF104K-3R9
UNF R
3.9
10W
K
QRF104K-5R6
UNF R
5.6
10W
K
C1161
NCB21HK-103X
CH C CAP.
0.01
µF
50V
K
C1164
NCB21HK-103X
CH C CAP.
0.01
µF
50V
K
C1165
NCB21HK-103X
CH C CAP.
0.01
µF
50V
K
C1166
NCB21HK-104X
CH C CAP.
0.1
µF
50V
K
D1705
SLR-342MG-T16
LED (GRE)
L-132XND-T16
LED (ORG)
Q1161
2SC2412K/QR/-X
CHIP TRANSISTOR
Q1710
DTC124EKA-X
DIGI TRANSISTOR
CF1161
SFE5.74MC2
C TRAP
CF1162
SFE5.74MC2
C TRAP
TH1901
QAD0119-9R0
P THERMISTOR
QAD0123-180
P THERMISTOR
PARTS DIFFERENCE TABLE
The different parts between AV-20N4(BK) and AV-20N4(NS) are described below:
AV-20N4
No. 56029
3
AV-20N4(BK)
AV-20N4(NS)
!
!
!
!
!
REF. NO.
PART NAME
DESCRIPTION
PART No.
PART No.
s PACKING PARTS LIST (Page 34)
1
CP11434-061-H
GG10056-021A-H
PACKING CASE
4
CP30697-005-H
CP30967-003-H
POLY BAG
5
RM-C368-1H
RM-C367-1H
REMOCON UNIT
6
QPA02503505
CP30966-001-H
POLY BAG
!
7
LCT0730-001A-H
LCT0771-001A-H
INST BOOK
AV-20N4
No. 56029
4
Item
Content
Dimensions (W
× H × D)
619mm
× 458mm × 488mm
Mass
19kg
TV RF System
B / G, I, D / K, K1
Colour System
TV Mode
PAL / SECAM
VIDEO Mode
PAL / SECAM / NTSC3.58 / NTSC4.43
Receiving Frequency VHF (VL)
46.25MHz ~ 168.25MHz
VHF (VH)
175.25MHz ~ 463.25MHz
UHF
471.25MHz ~ 863.25MHz
CATV
q Cable TVs of Mid (X-Z, S1-S10)
Super (S11-S20) & Hyper (S21-S41) bands receivable
Intermediate
VIF Carrier
38.0MHz
Frequency
31.5MHz (6.5MHz)
SIF Carrier
32.0MHz (6.0MHz)
32.5MHz (5.5MHz)
33.5MHz (4.5MHz)
Colour Sub Carrier Frequency
PAL (4.43MHz)
SECAM (4.40625MHz / 4.25MHz)
NTSC (3.58MHz / 4.43MHz)
Aerial Input Terminal
75
Unbalanced
Power Input
Rating: AC110 ~ 240V, 50/60Hz
Operating: AC90 ~ 260V, 50/60Hz
Power Consumption
95W (Max.) / 62W (Avg.)
Picture Tube
Visible size : 48cm measured diagonally
High Voltage
26.5kV
± 1.5kV (at zero beam current)
Speaker
5cm
× 12cm Oval type × 2
Audio Output
5W (Monaural)
Input
Video
1Vp-p, 75
Audio
500mVrms (
-4dBs), High impedance
Output
Video
1Vp-p, 75
Audio
500mVrms (4dBs), Low impedance
Headphone Jack
Stereo mini jack (3.5ø)
Remote Control Unit
RM-C367-1H (Battery size : AA/R06/UM-3
× 2)
Design & specifications are subject to change without notice.
SPECIFICATIONS (Page 2)
AV-20N4
No. 56029
5
SETTING OF SYSTEM CONSTANT SET (Page 7)
Table 1
SPECIFIC SERVICE INSTRUCTIONS
USER SETTING VALUES
Table 2
Setting item
Setting contents
Setting value
COLOUR
TRIPLE
BILINGUAL
NO
TUNER
MU
ECO SENSOR
YES
LANGUAGE
E
B/B SOUND
OFF
LOCK
180
COLOUR AUTO
NO
QSS
MINT
ALC
NO
TEXT RATE
20
AMP TUNER
YES
VNR
NO
MULTI.
TRIPLE
PAL
YES
NO
MU
MA
YES
NO
E/T
E
ON
OFF
YES
10
20
...
230
250
240
YES
NO
MINT
MQSS
YES
NO
10
20
40
80
YES
NO
YES
NO
Setting item
Setting value
Setting item
Setting value
SUB POWER
ON
PICTURE MODE (VSM)
BRIGHT
CHANNEL POSITION
1 POSITION
OFF TIMER
OFF
AUTO SHUTOFF
OFF
ECO SENSOR
OFF
VOLUME
Appropriate sound volume
BLUE BACK
OFF
TV/VIDEO
TV
ON TIMER
PR1
0:00
ON SCREEN DISPLAY
POSITION NUMBER DISPLAY
CHILD LOCK
OFF
COLOUR SYSTEM
AUTO PAL
PICTURE BOOSTER
OFF
SOUND SYSTEM
B / G
Refer to OPERATING
INSTRUCTION
CHANNEL PRESET