background image
AV-21P4
No. 56059
1
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
BASIC CHASSIS
CG-F
AV-21P4
COPYRIGHT
© 2000 VICTOR COMPANY OF JAPAN, LTD.
No. 56059
Aug. 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-21PM 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-21PM Service Manual (No. 56055, Aug. 2000)
Note: The page in parentheses shows the one for the AV-21PM service manual (No. 56055, Aug. 2000).
AV-21P4
SERVICE MANUAL
COLOUR TELEVISION
AV-21P4(BK)
AV-21P4-BK


background image
AV-21P4
No. 56059
2
PARTS DIFFERENCE TABLE
The different parts between AV-21PM and AV-21P4(BK) are described below:
AV-21PM
AV-21P4(BK)
!
!
!
!
!
REF. NO.
PART NAME
DESCRIPTION
PART No.
PART No.
s EXPLODED VIEW PARTS LIST (Page 30)
1
LC10549-015A-H
LC10549-010A-H
FRONT CABI ASSY
!
14
QMP40D0-200J5
QMPR010-200-E2
POWER CORD
or QMP40D0-200J3
or QMPR010-200-K2
!
17
LC20377-010B-H
CM22960-078-H
RATING LABEL
s PRINTED WIRING BOARD PARTS LIST [MAIN PWB ASSY] (Page 32-)
--
SCG-1232A-H2
SCG-1265A-BK
MAIN PWB ASSY
IC1701
MN1873287JB1
MN1873287JC1
IC (MICROCOMPUTER)
IC1702
AT24C08-21PM
AT24C08-21P4BK
IC (MEMORY)
(Service)
--
SCG-3001A-H2
SCG-3001A-BK
CRT SOCKET PWB ASSY
--
SCG-8001A-H2
SCG-8002A-BK
FRONT CONTROL PWB
ASSY
s PACKING PARTS LIST (Page 38)
1
GG10044-008A-H
GG10045-006A-H
PACKING CASE
4
RM-C364-1H
RM-C365-1H
REMOCON UNIT
5
CP30966-001-H
QPA02503505
POLY BAG
!
6
LCT0795-001A-H
LCT0799-001A-H
INST BOOK
!
8
LCT0796-001A-H
DIGEST MANUAL
--
ATEAB001-00A
MATCHING BOX


background image
AV-21P4
No. 56059
3
SPECIFICATIONS (Page 2)
Item
Content
Dimensions (W
× H × D)
596mm
× 468.5mm × 481.5mm
Mass
25kg
TV RF System
B / G, I, D / K, K1
Colour System
TV Mode
PAL / SECAM
VIDEO Mode
PAL / SECAM / NTSC3.58 / NTSC4.43
Stereo System
Bilingual in A2 (Monaural)
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
116W (Max.) / 74W (Avg.)
Picture Tube
Visible size : 51cm measured diagonally
High Voltage
28.0kV
± 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-C365-1H (Battery size : AA/R06/UM-3
× 2)
Design & specifications are subject to change without notice.


background image
AV-21P4
No. 56059
4
SETTING OF SYSTEM CONSTANT SET (Page 7)
Table 1
USER SETTING VALUES (Page 7)
Table 2
SPECIFIC SERVICE INSTRUCTIONS
Setting item
Setting contents
Setting value
COLOUR
TRIPLE
BILINGUAL
YES
TUNER
MU
ECO SENSOR
YES
LANGUAGE
E/T
B/B SOUND
OFF
LOCK
180
COLOUR AUTO
NO
QSS
MINT
ALC
NO
TEXT RATE
20
AMP TUNER
NO
VNR
YES
EW-PIN IC
YES
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
YES
NO
Setting item
Setting value
Setting item
Setting value
SUB POWER
ON
PICTURE MODE (VSM)
BRIGHT
CHANNEL POSITION
1 POSITION
VNR
OFF
OFF TIMER
OFF
LANGUAGE
THAI
VOLUME
Appropriate sound volume
AUTO SHUTOFF
OFF
TV/VIDEO
TV
ECO SENSOR
OFF
ON SCREEN DISPLAY
POSITION NUMBER DISPLAY
BLUE BACK
OFF
COLOUR SYSTEM
AUTO PAL
ON TIMER
PR1
0:00
SOUND SYSTEM
B / G
CHILD LOCK
OFF
BILINGUAL MODE
I
Refer to OPERATING
INSTRUCTION
CHANNEL PRESET


background image
AV-21P4
No. 56059
5
SERVICE ADJUSTMENTS
s Initial Setting Value
s IF CIRCUIT ADJUSTMENT -- Adjustment of DELAY POINT (Page 15)
s V/C (VIDEO/CHROMA) CIRCUIT ADJUSTMENT (Page 15)
[SUB MENU 2. V/C]
Variable
Initial setting
range
value
Setting (Adjustment) Item
DELAY POINT
(AGC TAKE-
OVER)
NTSC3.58
Others
0 ~ 127
48
43
Colour system
Variable
Initial setting value
Setting item
range
PAL
SECAM
NTSC 3.58
NTSC 4.43
1. CUT OFF (R / G / B)
-128 ~ +127
-50
bb
b
2. DRIVE (R / B)
-64 ~ +63
0
bb
b
3. BRIGHT
-128 ~ +127
0
bb
b
4. CONT.
-64 ~ +63
0
bb
b
5. COLOUR (P / S / N3 / N4)
-64 ~ +63
0
bb
b
6. TINT (N3 / N4) TV / VIDEO
-64 ~ +63
0 / 0
0 / 0
7. SECAM BL ADJUST
-32 ~ +31
0
bb
b
8. SHARP
TV / VIDEO
-32 ~ +31
-14 / +8
bb
b
: Do not adjust.
Adjustment of SUB COLOUR-II (Page 18)
Adjustment of SUB TINT-II (Page 19)
Adjustment part
Description
5. COLOUR
PAL COLOUR
Value (A) in the figure: Set to +12V (W & G).
SECAM COLOUR
Value (A) in the figure: Set to +13V (W & G).
NTSC 3.58 COLOUR
Value (A) in the figure: Set to +8V (W & G).
Adjustment part
Description
6. TINT
NTSC 3.58 TINT
Value (B) in the figure: Set to +5V (W & Cy).