JVC AV-14FTG Manuale utente

AV-14FTG

No. 56078 1

MODEL NO.

XXXXX XXXXXXX

XXXXXXX XXXXX

XXXXXX

XXXXX

XXX XXXXX XXXXX

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XXXXXXXXXXXXXXX

SERIALNo.

XXXXXX–XXX

XXXX XX XXXX

XXX XX XXXX

Model name

BASIC CHASSIS

SERVICE MANUAL

COLOUR TELEVISION

AV-14FTG

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-14FT 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-14FT Service Manual (No. 56077, Sep. 2000)

Note: The page in parentheses shows the one for the AV-14FT service manual (No. 56077, Sep. 2000).

AV-14FTG

No. 560782

AV-14FT AV-14FTG

!REF. NO. PART NAME DESCRIPTION

PART No. PART No.

■EXPLODED VIEW PARTS LIST (Page 28)

1 LC10831-005A-H LC10831-007A-H FRONT CABINET

!17 LC20377-010B-H LC20377-001B-H RATING LABEL

■PRINTED WIRING BOARD PARTS LIST (Page 30)

— SCG-1252A-H2 SCG-1256A-H2 MAIN PWB ASSY

IC1701 MN1873287JA MN1873287JB IC (MICROCOMPUTER)

IC1702 AT24C08-21FTR AT24C08-21FM IC (MEMORY) (Service)

■PACKING PARTS LIST (Page 34)

1 GG10056-010A-H GG10056-011A-H PACKING CASE

!7 LCT0757-001A-H LCT0733-001A-H INST BOOK

!8 LCT0758-001A-H LCT0734-001A-H DIGEST MANUAL

PARTS DIFFERENCE TABLE

The different parts between AV-14FT and AV-14FTG are described below:

AV-14FTG

No. 56078 3

SPECIFICATIONS(Page 2)

Item Content

Dimensions (W ×H ×D) 462mm ×340.5mm ×375mm

Mass 10kg

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 ●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 AC110 ~ 240V, 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-C364-1H (Battery size : AA/R06/UM-3 ×2)

Design & specifications are subject to change without notice.

AV-14FTG

No. 560784

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 ENGLISH

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

SETTING OF SYSTEM CONSTANT SET (Page 7)

Table 1

USER SETTING VALUES (Page 7)

Table 2

Refer to OPERATING

INSTRUCTION

CHANNEL PRESET

SPECIFIC SERVICE INSTRUCTIONS

Setting item Setting contents Setting value

COLOUR TRIPLE

BILINGUAL NO

TUNER MU

ECO SENSOR YES

LANGUAGE E/R/A/F

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/A/F E/A/F E/A E/F

ON OFF

YES 10 20 ... 230

250 240

YES NO

MINT MQSS

YES NO

10 20 40 80

YES NO

AV-14FTG

No. 56078 5

SERVICE ADJUSTMENTS

■Initial Setting Value

■IF CIRCUIT ADJUSTMENT -- Adjustment of DELAY POINT (Page 15)

■V/C (VIDEO/CHROMA) CIRCUIT ADJUSTMENT (Page 15)

[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 / +80/0

7. SECAM BL ADJUST −32 ~ +31 0 bbb

8. SHARP TV / VIDEO −32 ~ +31 −15 / +5bbb

: Do not adjust.

Variable Initial setting

range value

Setting (Adjustment) Item

DELAY POINT

(AGC TAKE-OVER) 0~127 43

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 +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 +9V (W & G).

Adjustment part Description

6. TINT

NTSC 3.58 TINT Value (B) in the figure: Set to +7V (W & Cy).

AV-14FTG

No. 560786

■DEFLECTION CIRCUIT ADJUSTMENT (Page 20)

: Do not adjust.

■VSM PRESET ADJUSTMENT (Page 22)

VSM preset

VSM mode BRIGHT STANDARD SOFT

Setting item

TINT +15 bb

bbb

SETTING VALUE

COLOUR +15 bb

bbb

SETTING VALUE

BRIGHT +15 bb

bbb

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 4. DEF]

AV-14FTG

No. 56078 7

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 23)

[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.

AV-14FTG

No. 560788 CTH 0009

CRT

AV14FTG-H #3

VICTOR COMPANY OF JAPAN, LIMITED

TELEVISION RECEIVER DIVISION 1106 Heta, Iwai-city, Ibaraki-prefecture, 306-0698, Japan

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