AV-21FTR
AV-21FTR
SERVICE MANUAL
COLOUR TELEVISION
BASIC CHASSIS
CG
AV-21FTR(B)
This service manual mainly consists of the following items:
• The items which differ from those for the AV-21FTR 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-21FTR Service Manual (No. 51722, Apr. 2000)
Note: The page in parentheses shows the one for the AV-21FTR service manual (No. 51722, Apr. 2000).
HOW TO IDENTIFY MODEL
While referring to the illustration given below, identify model name on the rating label affixed to the rear cover.
Basic model name
AV-21FTR
MODEL NO.
XXXXX XXXXXXX
XXXXXXX XXXXX
XXXXXX
XXXXX
XXX XXXXX XXXXX
XXXXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXXXXXX
SERIAL No.
XXXX XX XXXX
XXX XX XXXX
XXXXXX–XXX
Identify model name
AV-21FTR/B
COPYRIGHT 2000 VICTOR COMPANY OF JAPAN, LTD.
No. 51722B 1
No. 51722B
Sep. 2000
AV-21FTR
PARTS DIFFERENCE TABLE
The different parts between AV-21FTR and AV-21FTR(B) are described below:
!!
! REF. NO. PART NAME DESCRIPTION
!!
AV-21FTR AV-21FTR(B)
PART No. PART No.
■ EXPLODED VIEW PARTS LIST (Page 32)
! V01 A51JSY33X/C/ A51LMV20X PICTURE TUBE
! L01 QQW0077-001 QQW0006-001 DEGAUSSING COIL
DY01 QQD0041-001 CE20310-00B DEF YOKE
■ PRINTED WIRING BOARD PARTS LIST (Page 34-)
— SCG-1018A-H2 SCG-1267A-H2 MAIN PWB ASSY
R1532 NCB31HK-103X CH C CAP. 0.01µF 50V K
NCB21HJ-103X CH C CAP. 0.01µF 50V J
R1904 QRL03EJ-151X OM R 150Ω 3W J
C1110 NRSA63J-0R0X CH MG R 0.0Ω 1/16W J
NRSA02J-0R0X CH MG R 0.0Ω 1/10W J
C1354 NCS21HJ-271X CH C CAP. 270pF 50V J
NDC21HJ-271X CH C CAP. 270pF 50V J
C1355 NCS21HJ-221X CH C CAP. 220pF 50V J
NDC21HJ-221X CH C CAP. 220pF 50V J
C1356 NCS21HJ-331X CH C CAP. 330pF 50V J
NDC21HJ-331X CH C CAP. 330pF 50V J
C1525 QFZ0200-972 MPP CAP. 9700pF 1.5kVH ±3%
QFZ0200-103 MPP CAP. 0.01µF 1.5kVH ±3%
C1527 QFZ0199-204 MPP CAP. 0.2µF 250V J
QFZ0199-224 MPP CAP. 0.22µF 250V J
C1582 QFZ0199-204 MPP CAP. 0.2µF 250V J
QFZ0199-254 MPP CAP. 0.25µF 250V J
C1839 NCS21HJ-471X CH C CAP. 470pF 50V J
NDC21HJ-471X CH C CAP. 470pF 50V J
C1949 NCS21HJ-471X CH C CAP. 470pF 50V J
NDC21HJ-471X CH C CAP. 470pF 50V J
L1522 QQR1005-001 QQR1005-002 LINEARITY COIL
No. 51722B2
SPECIFICATIONS (Page 2)
Item Content
Dimensions (W × H × D) 619mm × 458mm × 486.5mm
Mass 22kg
TV RF System B / G, I, D / K, K1
Colour System TV Mode PAL / SECAM
VIDEO Mode PAL / SECAM / NTSC3.58 / NTSC4.43
Teletext System Fastext (United Kingdom system), WST (Standard system)
Receiving Frequency VHF (VL) 46.25MHz ~ 168.25MHz
VHF (VH) 175.25MHz ~ 463.25MHz
UHF 471.25MHz ~ 863.25MHz
CATV ● 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 75Ω Unbalanced
Power Input AC110 ~ 240V, 50/60Hz
Power Consumption 105W (Max.) / 68W (Avg.)
Picture Tube Visible size : 51cm measured diagonally
High Voltage 26.5kV ± 1.5kV (at zero beam current)
Speaker 6cm × 12cm Oval type × 2
Audio Output 5W (Monaural)
Input Video 1Vp-p, 75Ω
Audio 500mVrms (−4dBs), High impedance
Output Video 1Vp-p, 75Ω
Audio 500mVrms (–4dBs), Low impedance
Headphone Jack Stereo mini jack (3.5ø)
Remote Control Unit RM-C223-2C (Battery size : AA/R06/UM-3 × 2)
AV-21FTR
Design & specifications are subject to change without notice.
No. 51722B 3
AV-21FTR
SPECIFIC SERVICE INSTRUCTIONS
SETTING OF SYSTEM CONSTANT SET (Page 9)
Table 1
Setting item Setting contents Setting value
COLOUR TRIPLE
BILINGUAL NO
TUNER MA
ECO SENSOR YES
LANGUAGE E/R/C
B/B SOUND OFF
LOCK 180
COLOUR AUTO NO
QSS MINT
ALC NO
TEXT RATE 20
AMP TUNER NO
MULTI. TRIPLE PAL
YES NO
MU MA
YES NO
E/R/C/U E/R/C E/R/U E/C
ON OFF
YES 10 20 ... 230
250 240
YES NO
MINT MQSS
YES NO
10 20 40 80
YES NO
USER SETTING VALUES (Page 9)
Table 2
Setting item Setting value Setting item Setting value
SUB POWER ON PICTURE MODE (VSM) BRIGHT
CHANNEL POSITION 1 POSITION VNR OFF
CHANNEL PRESET
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
Refer to OPERATING
INSTRUCTION
OFF TIMER OFF
LANGUAGE ENGLISH
No. 51722B4
SERVICE ADJUSTMENTS
■ Initial Setting Value
■ IF CIRCUIT ADJUSTMENT -- Adjustment of DELAY POINT (Page 17)
AV-21FTR
Setting (Adjustment) Item
DELAY POINT
(AGC TAKE-OVER)
Variable Initial setting
range value
0 ~ 127 45
■ V/C (VIDEO/CHROMA) CIRCUIT ADJUSTMENT (Page 17)
[SUB MENU 2. V/C]
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 bbb
2. DRIVE (R / B) −64 ~ +63 0 bbb
3. BRIGHT −128 ~ +127 0 bbb
4. CONT. −64 ~ +63 0 bbb
5. COLOUR (P / S / N3 / N4) −64 ~ +63 0 bbb
6. TINT (N3 / N4) TV / VIDEO −64 ~ +63 0 / 0 0 / 0
7. SECAM BL ADJUST −32 ~ +31 0 bbb
8. SHARP TV / VIDEO −32 ~ +31 −5 / +15 bbb
: Do not adjust.
Adjustment of SUB COLOUR-II (Page 20)
Adjustment part Description
5. COLOUR
PAL COLOUR Value (A) in the figure: Set to +6V (W & G).
SECAM COLOUR Value (A) in the figure: Set to +5V (W & G).
NTSC 3.58 COLOUR Value (A) in the figure: Set to +3V (W & G).
Adjustment of SUB TINT-II (Page 21)
Adjustment part Description
6. TINT
NTSC 3.58 TINT Value (B) in the figure: Set to +3V (W & Cy).
No. 51722B 5
AV-21FTR
■ DEFLECTION CIRCUIT ADJUSTMENT (Page 23)
[SUB MENU 4. DEF]
Setting item Adjustment name Variable range
1. VER. POSITION Vertical center −4 ~ +3 −1 −3
2. HOR. POSITION Horizontal center −16 ~ +15 +3 +3
3. VER. HEIGHT Vertical height −64 ~ +63 −35 +1
4. VER. LINEARITY Vertical linearity −32 ~ +31 +15 −1
5. VER. SCURVE Vertical scurve −32 ~ +31 −32 0
6. HOR. VCO ADJUST Horizontal VCO −64 ~ +63 0 0
: Do not adjust.
Initial setting value
50Hz 60Hz
■ VSM PRESET ADJUSTMENT (Page 25)
[Setting Values for SUB MENU 4. VSM PRESET]
VSM preset
VSM mode BRIGHT STANDARD SOFT
Setting item
TINT
SETTING VALUE
COLOUR
SETTING VALUE
BRIGHT
SETTING VALUE
CONT.
SETTING VALUE
SHARP
SETTING VALUE
+15
+15
+15
+30 +15 +11
+15 +15 +12
bb
b
bb
bb
b
bb
bb
b
bb
bb
b
bb
bb
b
bb
bb
b
bb
: Do not adjust.
No. 51722B6
AV-21FTR
■ PRESET ADJUSTMENT (Page 26)
[SUB MENU 5. PRESET]
Colour system Initial setting value
Setting item PAL SECAM NTSC 3.58 NTSC 4.43
1. C-TRAP FIX 1 bbb
2. SHARP PEAK 0 b
3. ABL 1 b
4. GAMMA 0 bbb
5. Y.DELAY TIME TV 0 2 2 3
VIDEO 0 2 0 2
6. BLACK EXP START 3 bbb
7. C-BPF TV 1 b 0 b
VIDEO 1 bbb
8. CW/SCP 0 bbb
9. V.IF DET. LEVEL 0 bbb
11. IF AGC MIN. 0 bbb
12. V.IF AGC 0 bbb
13. V.IF PMOD 0 bbb
19. VNR 15 bbb
20. RGB LIM. 1 bbb
21. RGB LIMIT LEVEL 2 bbb
23. TEXT H. POSITION −3 bbb
24. READ DATA
: Do not adjust.
TV RF system Initial setting value
Setting item B/G I D/K M
10. S.IF DET. LEVEL 0 bbb
14. S.IF BPF BW ADJUST 0 bbb
15. S.IF TRAP FO ADJUST 0 bbb
16. S.IF TRAP FO ADJUST 2 0 bbb
17. S.IF-TRAP 0 bbb
18. S.IF-BPF 0 bb 1
22. S.IF SW 1 bb 0
: Do not adjust.
No. 51722B 7
AV-21FTR
VICTOR COMPANY OF JAPAN, LIMITED
TELEVISION RECEIVER DIVISION 1106 Heta, Iwai-city, Ibaraki-prefecture, 306-0698, Japan
No. 51722B8
AV21FTRB-H #3
CTH 0009
CRT
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