JVC AV-14F7 User manual

AV-14F7
No. 56098 1
MODEL NO.
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SERIALNo.
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Identify model name
Basic model name
BASIC CHASSIS
CG
SERVICE MANUAL
COLOUR TELEVISION
AV-14F7(VT)
COPYRIGHT  2000 VICTOR COMPANY OF JAPAN, LTD. No. 56098
Sep. 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-14FM 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-14FM Service Manual (No. 51753, Jul. 2000)
Note: The page in parentheses shows the one for the AV-14FM service manual (No. 51753, Jul. 2000).
AV-14F7
AV-14F7-VT
AV-14F7

AV-14F7
No. 560982
AV-14FM AV-14F7(VT)
!!
!!
!REF. NO. PART NAME DESCRIPTION
PART No. PART No.
■EXPLODED VIEW PARTS LIST (Page 32)
!V01 A34AGT15X PICTURE TUBE
A34JLL91X84 PICTURE TUBE ITC
!L01 QQW0093-001 CELD025-005J6 DEGAUSSING COIL
DY01 QQD0046-001 DEF YOKE
1 LC10831-002B-H LC10831-011B-H FRONT CABINET
10 CE42153-00AJ1 WEDGE ASSY (×3)
11 CE40305-00B PC MAGNET
!16 CM12961-D01-VH CM12961-D01-KH REAR COVER
!19 LC20377-001B-H GG20001-010A-H RATING LABEL
■PRINTED WIRING BOARD PARTS LIST [MAIN PWB ASSY] (Page 34-)
— SCG-1017A-H2 SCG-1249A-CK MAIN PWB ASSY
R1103 NRSA63J-100X CH MG R 10Ω1/16W J
NRSA02J-820X CH MG R 82Ω1/10W J
R1112 NRSA63J-100X CH MG R 10Ω1/16W J
NRSA02J-220X CH MG R 22Ω1/10W J
R1303 NRSA63J-101X CH MG R 100Ω1/16W J
NRSA02J-221X CH MG R 220Ω1/10W J
R1304 NRSA63J-101X CH MG R 100Ω1/16W J
NRSA02J-221X CH MG R 220Ω1/10W J
R1305 NRSA63J-101X CH MG R 100Ω1/16W J
NRSA02J-221X CH MG R 220Ω1/10W J
R1347 NRSA02J-392X CH MG R 3.9kΩ1/10W J
R1348 NRSA02J-472X CH MG R 4.7kΩ1/10W J
R1369 QRE122J-394 C R 390kΩ1/2W J
R1528 QRE122J-471 C R 470Ω1/2W J
R1529 QRL039J-121 OM R 120Ω3W J
QRG029J-271 OM R 270Ω2W J
C1317 NCB31EK-473X CH C CAP. 0.047µF 25V K
NCB21HK-473X CH C CAP. 0.047µF 50V K
C1351 QCZ0121-102 C CAP. 1000pF 3kV Z
C1352 QFZ0097-103 MM CAP. 0.01µF 1250V K
C1354 NDC31HJ-271X CH C CAP. 270pF 50V J
NDC21HJ-221X CH C CAP. 220pF 50V J
C1355 NDC31HJ-221X CH C CAP. 220pF 50V J
NDC21HJ-271X CH C CAP. 270pF 50V J
PARTS DIFFERENCE TABLE
The different parts between AV-14FM and AV-14F7(VT) are described below:

AV-14F7
No. 56098 3
C1527 QFZ0199-224 MPP CAP. 0.22µF 250V J
QFZ0199-184 MPP CAP. 0.18µF 250V J
C1530 QCB32HK-561 C CAP. 560pF 500V K
C1582 QFZ0199-204 MPP CAP. 0.2µF 250V J
QFZ0199-184 MPP CAP. 0.18µF 250V J
C1657 QCB31HK-103 C CAP. 0.01µF 50V K
L1522 QQR1005-003 LINEARITY COIL
L1551 QQLZ026-640 QQLZ018-670 HEATER CHOKE
IC1701 MN1873287JB1 MN1873287JD1 IC (MICROCOMPUTER)
IC1702 AT24C08-21PM AT24C08-14F7VT IC (MEMORY) (Service)
J1006 QNN0281-002 PIN JACK
TU1001 QAU0202-001 QAU0186-001 TUNER
■PACKING PARTS LIST (Page 38)
1 LC10453-092A-H GG10007-010A PACKING CASE
4 RM-C364-1H RM-C367-1H REMOCON UNIT
!6 LCT0733-001A-H LCT0768-001A INST BOOK
!7 LCT0734-001A-H DIGEST MANUAL
8 CM47385-00B-H CM43936-001 POS/SERIAL LABEL (×2)
— CEAB005-00AJ1 MATCHING BOX
AV-14FM AV-14F7(VT)
!!
!!
!REF. NO. PART NAME DESCRIPTION
PART No. PART No.
■PRINTED WIRING BOARD PARTS LIST [MAIN PWB ASSY] - Continued (Page 34-)

AV-14F7
No. 560984
SPECIFICATIONS(Page 2)
Item Content
Dimensions (W ×H ×D) 462mm ×340.5mm ×375mm
Mass 10kg
TV RF System B / G, I, D / K, K1, M
Colour System TV Mode PAL / SECAM / NTSC3.58 / NTSC4.43
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 ●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 75ΩUnbalanced
Power Input Rating: AC110 ~ 240V, 50/60Hz Operating: AC90 ~ 260V, 50/60Hz
Power Consumption 70W (Max.) / 47W (Avg.)
Picture Tube Visible size : 34cm measured diagonally
High Voltage 22.5kV ±1.5kV (at zero beam current)
Speaker 5cm ×9cm Oval type ×2
Audio Output 3W (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-C367-1H (Battery size : AA/R06/UM-3 ×2)
Design & specifications are subject to change without notice.

AV-14F7
No. 56098 5
SETTING OF SYSTEM CONSTANT SET (Page 9)
Table 1
SPECIFIC SERVICE INSTRUCTIONS
USER SETTING VALUES (Page 9)
Table 2
Setting item Setting contents Setting value
COLOUR MULTI.
BILINGUAL NO
TUNER MU
ECO SENSOR YES
LANGUAGE E/V
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/V 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
LANGUAGE VIETNAMESE
AUTO SHUTOFF OFF
VOLUME Appropriate sound volume ECO SENSOR OFF
TV/VIDEO TV BLUE BACK OFF
ON SCREEN DISPLAY POSITION NUMBER DISPLAY ON TIMER PR1 0:00
COLOUR SYSTEM AUTO PAL CHILD LOCK OFF
SOUND SYSTEM B / G PICTURE BOOSTER OFF
Refer to OPERATING
INSTRUCTION
CHANNEL PRESET

AV-14F7
No. 560986
SERVICE ADJUSTMENTS
■Initial Setting Value
■IF CIRCUIT ADJUSTMENT -- Adjustment of DELAY POINT (Page 17)
■V/C (VIDEO/CHROMA) CIRCUIT ADJUSTMENT (Page 17)
[SUB MENU 2. V/C]
Adjustment of SUB COLOUR-II (Page 20)
Adjustment of SUB TINT-II (Page 21)
Adjustment part Description
5. COLOUR
PAL COLOUR Value (A) in the figure: Set to +9V (W & G).
SECAM COLOUR Value (A) in the figure: Set to +3V (W & G).
NTSC 3.58 COLOUR Value (A) in the figure: Set to +7V (W & G).
Adjustment part Description
6. TINT
NTSC 3.58 TINT Value (B) in the figure: Set to +5V (W & Cy).
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 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 / +80/0
7. SECAM BL ADJUST −32 ~ +31 0 bbb
8. SHARP TV / VIDEO −32 ~ +31 −15 / +5bbb
9. AMP T. SHARP −16 ~ +15 0 bbb
: Do not adjust.

AV-14F7
No. 56098 7
■DEFLECTION CIRCUIT ADJUSTMENT (Page 23)
: Do not adjust.
■VSM PRESET ADJUSTMENT (Page 25)
VSM preset
VSM mode BRIGHT STANDARD SOFT
Setting item
TINT +15 bb
bb
bbb
bb
b
SETTING VALUE
COLOUR +15 bb
bb
bbb
bb
b
SETTING VALUE
BRIGHT +15 bb
bb
bbb
bb
b
SETTING VALUE
CONT. +30 +15 +11
SETTING VALUE
SHARP +15 +15 +12
SETTING VALUE
[Setting Values for SUB MENU 4. VSM PRESET]
Initial setting value
Setting item Adjustment name Variable range 50Hz 60Hz
1. VER. POSITION Vertical center −4 ~ +3−2−3
2. HOR. POSITION Horizontal center −16 ~ +15 +1 +4
3. VER. HEIGHT Vertical height −64 ~ +63 −40 0
4. VER. LINEARITY Vertical linearity −32 ~ +31 +13 −3
5. VER. SCURVE Vertical scurve −32 ~ +31 −32 0
6. HOR. VCO ADJUST Horizontal VCO −64 ~ +63 0 0
: Do not adjust.
[SUB MENU 3. DEF]

AV-14F7
No. 560988 CTH 0009
CRT
AV14F7VT-CK #3
VICTOR COMPANY OF JAPAN, LIMITED
TELEVISION RECEIVER DIVISION 1106 Heta, Iwai-city, Ibaraki-prefecture, 306-0698, Japan
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 b0 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 −3bbb
24. READ DATA
■PRESET ADJUSTMENT (Page 26)
[SUB MENU 5. PRESET]
: 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.