JVC AV-25P9(BK) Service Manual

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SERVICE MANUAL

COLOUR TELEVISION

BASIC CHASSIS

AV-25P9(BK)

This service manual mainly consists of the following items:

• The items which differ from those for the AV-25PS 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-25PS Service Manual (No. 51750, Jul. 2000)

AV-25P9

Note: The page in parentheses shows the one for the AV-25PS service manual (No. 51750, 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.

Basic model name

AV-25P9

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-25P9-BK

No. 56065 1

No. 56065 Sep. 2000

AV-25P9

PARTS DIFFERENCE TABLE

The different parts between AV-25PS and AV-25P9(BK) are described below:

! REF. NO. PART NAME DESCRIPTION

AV-25PS AV-25P9(BK) PART No. PART No.

■ EXPLODED VIEW PARTS LIST (Page 36)

3 CE40764-00A CE41488-00A WEDGE ASSY (×4)

! 10 QMP40D0-200J3 QMPR010-200-E2 POWER CORD

or QMP40D0-200J5 or QMPR010-200-K2

! 14 LC20377-001B-H CM22960-077-H RATING LABEL

25 LC10475-012A-H LC10475-014A-H FRONT CABI ASSY

■ PRINTED WIRING BOARD PARTS LIST [MAIN PWB ASSY] (Page 38-)

— SJK-1005A-H2 SJK-1031A-BK MAIN PWB ASSY R1329 NRSA02J-102X CH MG R 1kΩ 1/10W J

NRSA02J-0R0X CH MG R 0.0Ω 1/10W J

R1330 NRSA02J-472X CH MG R 4.7kΩ 1/10W J

NRSA02J-0R0X CH MG R 0.0Ω 1/10W J R1871 NRSA02J-102X CH MG R 1kΩ 1/10W J R1872 NRSA02J-222X CH MG R 2.2kΩ 1/10W J R1873 NRSA02J-222X CH MG R 2.2kΩ 1/10W J R1874 NRSA02J-272X CH MG R 2.7kΩ 1/10W J R1875 NRSA02J-0R0X CH MG R 0.0Ω 1/10W J R1876 NRSA02J-102X CH MG R 1kΩ 1/10W J R1877 NRSA02J-393X CH MG R 39kΩ 1/10W J R1878 NRSA02J-182X CH MG R 1.8kΩ 1/10W J R1879 NRSA02J-182X CH MG R 1.8kΩ 1/10W J R1880 NRSA02J-182X CH MG R 1.8kΩ 1/10W J R1881 NRSA02J-181X CH MG R 180Ω 1/10W J R1882 NRSA02J-181X CH MG R 180Ω 1/10W J R1883 NRSA02J-102X CH MG R 1kΩ 1/10W J R1884 NRSA02J-181X CH MG R 180Ω 1/10W J C1324 QETN1HM-105Z E CAP. 1µF 50V M C1325 QETN1HM-105Z E CAP. 1µF 50V M C1326 QETN1HM-105Z E CAP. 1µF 50V M C1334 NCB21HK-103X CH C CAP. 0.01µF 50V K C1335 NCB21HK-103X CH C CAP. 0.01µF 50V K C1336 NCB21HK-103X CH C CAP. 0.01µF 50V K C1871 NCB21EK-104X CH C CAP. 0.1µF 25V K C1872 NCB21HK-223X CH C CAP. 0.022µF 50V K C1873 NDC21HJ-221X CH C CAP. 220pF 50V J

No. 560652

AV-25P9

! REF. NO. PART NAME DESCRIPTION

AV-25PS AV-25P9(BK) PART No. PART No.

■ PRINTED WIRING BOARD PARTS LIST [MAIN PWB ASSY] - Continued (Page 38-)

C1874 NDC21HJ-150X CH C CAP. 15pF 50V J C1875 NDC21HJ-150X CH C CAP. 15pF 50V J C1876 NDC21HJ-221X CH C CAP. 220pF 50V J C1877 NCB21EK-104X CH C CAP. 0.1µF 25V K C1878 NCB21HK-102X CH C CAP. 1000pF 50V K C1879 NDC21HJ-221X CH C CAP. 220pF 50V J C1880 QETN1AM-477Z E CAP. 470µF 10V M C1881 NCB21EK-104X CH C CAP. 0.1µF 25V K C1882 QETN1EM-476Z E CAP. 47µF 25V M C1883 NCB21HK-103Z CH C CAP. 0.01µF 50V K C1884 NCB21EK-104X CH C CAP. 0.1µF 25V K C1885 NCB21EK-104X CH C CAP. 0.1µF 25V K C1886 NCB21HK-103X CH C CAP. 0.01µF 50V K L1871 QQL244K-4R7Z PEAKING COIL 4.7µHK L1872 QQL244K-3R3Z PEAKING COIL 3.3µHK D1303 MA111-X CHIP DIODE Q1871 2SA1037AK/QR/-X SI TRANSISTOR Q1872 2SC2412K/QR/-X CHIP TRANSISTOR IC1701 M37280MF-173SP M37280MF-201SP IC (MICROCOMPUTER) IC1702 AT24C16-29RSB AT24C16-29R9BBK IC (MEMORY) (Service) IC1871 ET417 IC IC1872 ET211 IC X1871 CE41257-001Z X TAL

■ PRINTED WIRING BOARD PARTS LIST [POWER & DEF PWB ASSY] (Page 41-)

— SJK-2004A-H2 SJK-2004A-BK POWER & DEF PWB ASSY

■ PRINTED WIRING BOARD PARTS LIST [CRT SOCKET PWB ASSY] (Page 43-)

— SJK-3002A-H2 SJK-3002A-BK CRT SOCKET PWB ASSY

■ PRINTED WIRING BOARD PARTS LIST [FRONT CONTROL PWB ASSY] (Page 44)

— SJK-8003A-H2 SJK-8010A-BK FRONT CONTROL PWB

ASSY

■ PRINTED WIRING BOARD PARTS LIST [AV SEL. PWB ASSY] (Page 45-)

— SJK0S005A-H2 SJK0S005A-BK AV SEL. PWB ASSY

■ PACKING PARTS LIST (Page 47)

1 LC10453-078A-H GG10045-005A-H PACKING CASE 3 CP30967-004-H CP30697-006-H POLY BAG 4 RM-C112-2H RM-C115-2H REMOCON UNIT 5 CP30966-001-H QPA02503505 POLY BAG

! 6 LCT0664-001A-H LCT0816-001A-H INST BOOK

— ATEAB001-00A MATCHING BOX

No. 56065 3

AV-25P9

SPECIFICATIONS (Page 2)

Item CONTENTS

Dimensions (W × H × D) 655mm × 530.5mm × 465mm Mass 36kg TV RF System B, G, I, D, K, K1, M Colour System PAL, SECAM, NTSC3.58, NTSC4.43 Stereo System A2 / NICAM (B/G, I, D/K) Receiving Frequency VHF (L) 46.25MHz ~ 168.25MHz

VHF (H) 175.25MHz ~ 463.25MHz UHF 471.25MHz ~ 863.25MHz CATV Mid (X-Z, S1-S10), Super (S11-S20), Hyper (S21-S41) bands receivable

Intermediate Frequency

VIF Carrier 38.0MHz SIF Carrier 33.5MHz(4.5MHz), 32.5MHz(5.5MHz), 32.0MHz(6.0MHz), 31.5MHz(6.5MHz)

Colour Sub Carrier Frequency

PAL 4.43MHz SECAM 4.40625MHz, 4.25MHz

NTSC 3.58MHz / 4.43MHz Power Input Rating: AC110 ~ 240V, 50/60Hz Operating: AC90 ~ 260V, 50/60Hz Power Consumption 181W (Max.), 119W (Avg.) Picture Tube Visible size : 60cm measured diagonally High Voltage 31.0kV ±1.5kV (at zero beam current) Speaker & Audio Output Open dome speaker

10W+10W, 10cm round x 2

Video Audio Input terminals

Video1 S-Video Y: 1Vp-p Positive (Negative sync provided, when terminated with 75Ω)

C: 0.286Vp-p (Burst signal, when terminated with 75Ω)

Video 1Vp-p 75Ω (RCA pin jack)

Audio (L/R) 500mVrms (−4dBs), High impedance (RCA pin jack) Video2 Video 1Vp-p 75Ω (RCA pin jack)

Audio (L/R) 500mVrms (–4dBs), High impedance (RCA pin jack) Video3 Video/Y Composite video 1Vp-p 75Ω (RCA pin jack)

Component video 1Vp-p 75Ω (RCA pin jack)

Cb Component video B-Y 0.7Vp-p 75Ω (RCA pin jack)

Cr Component video R-Y 0.7Vp-p 75Ω (RCA pin jack)

Audio (L/R) 500mVrms (–4dBs), High impedance (RCA pin jack) Video4 Video 1Vp-p 75Ω (RCA pin jack)

Audio (L/R) 500mVrms (−4dBs), High impedance (RCA pin jack) Video Audio Output terminal

Video 1Vp-p 75Ω (RCA pin jack)

Audio (L/R) 500mVrms (−4dBs), High impedance (RCA pin jack) Aerial Input Terminal 75Ω Unbalanced, Coaxial Headphone Jack Stereo mini jack (3.5ø) AV Compu Link terminal AV Compu Link II, mini jack (3.5ø) Remote Control Unit RM-C115 (AA/R06 / UM-3 dry battery × 2)

Design & specifications are subject to change without notice.

No. 560654

SPECIFIC SERVICE INSTRUCTIONS

SETTING OF SYSTEM CONSTANT SET (Page 9)

Table 1

CONTENTS VARIABLE RANGE INITIAL SETTING VALUE

COLOUR MULTI MSP YES SUPER BASS NO CENTER SPEAKER NO TEXT NO BLUE BACK MUTE NO VOLUME LIMIT YES COLOUR AUTO NO TILT YES C-TRAP 1 E.M.C. NO N/S WHITE BACK NO 7 LED SPEED 00

MULTI TRIPLE PAL YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO 1 0 YES NO

YES NO 00 10 20 ... 1250

1270 1260

AV-25P9

LANGUAGE E/T

E/T E

USER SETTING CONDITIONS (Page 9)

Table 2

PICTURE SETTING FEATURES

PICTURE MODE BRIGHT SLEEP TIMER OFF CONTRAST CENTER ON TIMER PR1 0:00 BRIGHT CENTER BLUE BACK ON SHARP CENTER CHILD LOCK OFF COLOUR CENTER CHANNEL GUARD -TINT CENTER AUTO SHUT OFF OFF WHITE BALANCE COOL VIDEO-3 SETTING COMPONENT

PICTURE FEATURES INSTALL

A.A.C ON LANGUAGE THAI AUTO VNR AUTO AUTO PROGRAM -COLOUR SYSTEM TV: According to preset CH EDIT / MANUAL PRESET CH only

VIDEO: AUTO PAL Others: blank ZOOM REGULAR DEMO ECO SENSOR OFF DEMO OFF PICTURE TILT CENTER OTHERS

SOUND SETTING VOLUME Appropriate sound level SETERO / I • II CHANNEL PRESET Refer to Operating Instructions. BASS CENTER CHANNEL POSITION 1 POSITION TREBLE CENTER SUB POWER ON BALANCE CENTER ON SCREEN DISPLAY POSITION INDICATION AI VOLUME ON TV/VIDEO TV BBE ON SOUND SYSTEM B/G SPATIALIZER OFF

No. 56065 5

AV-25P9

SERVICE ADJUSTMENTS

■ Initial Setting Value

■ SETTING OF VSM PRESET (Page 18)

[INITIAL SETTING VALUES OF VSM PRESET (SUB MENU 5. VSM PRESET)]

PICTURE MODE BRIGHT STANDARD SOFT ITEM

1. BRIGHT +0 +0 +0

2. CONT +17 +0 −4

3. COLOR +0 +0 −1

4. SHARP +0 +0 −3

5. TINT +0 +0 +0

: Do not adjust.

■ SETTING OF WHITE BALANCE PRESET (Page 19)

[SETTING OF WHITE BALANCE PRESET (SUB MENU 6. WB PRESET)]

WHITE BALANCE ITEM

1. R DRIVE 0 −3 +26

2. B DRIVE 0 −23 −27

: Do not adjust.

COOL MID WARM

No. 560656

AV-25P9

■ VIDEO / CHROMA CIRCUIT ADJUSTMENT (Page 19)

CONTENTS PAL SECAM NTSC 3.58 NTSC 4.43

R −60

1. CUTOFF G −60

B −60

2. DRIVE R +0

B +0

3. BRIGHT TV 000—

VIDEO +1 −4 −2—

COMPONENT −3

4. CONT TV 000—

VIDEO +20+2—

COMPONENT +2

5. COLOUR TV / VIDEO +10 +18 +0 −2

COMPONENT +8 +18

6. TINT TV +6 +6 −10

VIDEO +6 +6 +60

COMPONENT +6 −3

7. BLACK OFFSET R-Y —0——

B-Y —0——

8. SHARP TV −15 −17 −15 —

VIDEO −13 −11 −12 —

COMPONENT −15

: Do not adjust.

Adjustment of SUB COLOUR-II (Page 22)

Adjustment part Description

5. COLOUR

PAL COLOUR Value (A) in the figure: Set to 0V (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 +6V (W & G).

Adjustment of SUB TINT-II (Page 23)

Adjustment part Description

6. TINT

NTSC 3.58 TINT Value (B) in the figure: Set to +6V (W & Cy).

No. 56065 7

AV-25P9

■ DEFLECTION CIRCUIT ADJUSTMENT (Page 25)

[DEFLECTION ADJUSTMENTS INITIAL SETTING VALUE (SUB MENU 4. DEF)]

Initial setting value

Setting item Adjustment name REGULAR ZOOM 16:9

50Hz 60Hz 50Hz 60Hz 50Hz 60Hz

1. V-SHIFT Vertical shift −30+10−10

2. V-SIZE Vertical size +13 0 +36 +35 −37 −37

3. SUBTITLE Subtitle 0 +10+70 0

4. H-CENT Horizontal center −9 +5 −1 −10 0

5. H-SIZE Horizontal size +11 −1 −9 −7 −10

6. EW-PIN Side pin correction −1 −1 −4 −5 +2 +1

7. TRAPEZ Trapezoidal distortion correction +4 −10 0−1+1

8. EW.COR.L Corner pin correction Low side −2000+1+1

9. EW.COR.H Corner pin correction High side −2000+1+1

10. V.S-COR Vertical size correction +900000

11. V-LIN Vertical Linearity 0 0 +10 0 0

12. H-BLK-R Horizontal Blanking Right 0000+29 0

13. H-BLK-L Horizontal Blanking Left 000000

14. V-EHT V size correction level caused by EHT change −400000

15. H-EHT H size correction level caused by EHT change −400000

16. EHT-GAIN Size correction gain caused by EHT change 000000

: Do not adjust.

■ AUDIO CIRCUIT ADJUSTMENT (Page 29)

[AUDIO ADJUSTMENTS INITIAL SETTING VALUE (SUB MENU 3. AUDIO)]

Setting item Variable range Fixed value

1. ERROR LIMIT 000H ~ FF0H 100H

2. A2 ID THR 00H ~ FFH 14H

3. BASS −17 ~ +17 +0

4. TREBLE −17 ~ +17 +0

: Do not adjust.

VICTOR COMPANY OF JAPAN, LIMITED

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

No. 560658

AV25P9BK-BK #3

CTH 0009 CRT

JVC AV-25P9(BK) Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

HOW TO IDENTIFY MODEL

PARTS DIFFERENCE TABLE

SPECIFICATIONS (Page 2)

SPECIFIC SERVICE INSTRUCTIONS

SERVICE ADJUSTMENTS