JVC AV-25P8TEE Service Manual

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Page 1

AV-25P8TEE

SERVICE MANUAL

COLOUR TELEVISION

BASIC CHASSIS

AV-25P8TEE

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)

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.

Model name

AV-25P8TEE

MODEL NO.

XXXXX XXXXXXX XXXXXXX XXXXX

XXXXXX

XXXXX

XXX XXXXX XXXXX

XXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXX

SERIAL No.

XXXX XX XXXX XXX XX XXXX

XXXXXX–XXX

No. 56068 1

No. 56068 Sep. 2000

Page 2

AV-25P8TEE

PARTS DIFFERENCE TABLE

The different parts between AV-25PS and AV-25P8TEE are described below:

! REF. NO. PART NAME DESCRIPTION

AV-25PS AV-25P8TEE PART No. PART No.

■ EXPLODED VIEW PARTS LIST (Page 36)

! 14 LC20377-001B-H LC20377-009A-H RATING LABEL

25 LC10475-012A-H LC10475-017A-H FRONT CABI ASSY

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

— SJK-1005A-H2 SJK-1030A-H2 MAIN PWB ASSY R1010 NRSA02J-222X CH MG R 2.2kΩ 1/10W J R1011 NRSA02J-122X CH MG R 1.2kΩ 1/10W J R1012 NRSA02J-331X CH MG R 330Ω 1/10W J R1013 NRSA02J-270X CH MG R 27Ω 1/10W J R1014 NRSA02J-271X CH MG R 270Ω 1/10W J R1015 NRSA02J-102X CH MG R 1kΩ 1/10W J C1012 NCB21HK-472X CH C CAP. 4700pF 50V K C1013 NCB21HK-472X CH C CAP. 4700pF 50V K Q1001 2SC2412K/QR/-X CHIP TRANSISTOR Q1002 2SC2412K/QR/-X CHIP TRANSISTOR IC1701 M37280MF-173SP M37280MF-200SP IC (MICROCOMPUTER) IC1702 AT24C16-29RSB AT24C16-29RF7C IC (MEMORY) (Service)

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

— SJK0S005A-H2 SJK0S006A-H2 AV SEL. PWB ASSY R0603 NRSA02J-102X CH MG R 1kΩ 1/10W J R0606 QRG01GJ-181 OM R 180Ω 1W J R0607 NRSA02J-123X CH MG R 12kΩ 1/10W J R0608 NRSA02J-181X CH MG R 180Ω 1/10W J R0609 NRSA02J-123X CH MG R 12kΩ 1/10W J R0610 NRSA02J-561X CH MG R 560Ω 1/10W J R0628 NRSA02J-0R0X CH MG R 0.0Ω 1/10W J R0629 NRSA02J-101X CH MG R 100Ω 1/10W J R0630 NRSA02J-101X CH MG R 100Ω 1/10W J C0610 NDC21HJ-821X CH C CAP. 820pF 50V J C0611 NDC21HJ-470X CH C CAP. 47pF 50V J C0612 NDC21HJ-470X CH C CAP. 47pF 50V J C0614 NDC21HJ-180X CH C CAP. 18pF 50V J C0616 QETN1CM-107Z E CAP. 100µF 16V M C0617 NCB21EK-104X CH C CAP. 0.1µF 25V K C0618 QETN1HM-106Z E CAP. 10µF 50V M

No. 560682

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AV-25P8TEE

! REF. NO. PART NAME DESCRIPTION

AV-25PS AV-25P8TEE PART No. PART No.

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

C0619 NCB21EK-104X CH C CAP. 0.1µF 25V K C0620 QETN1HM-106Z E CAP. 10µF 50V M C0623 NCB21EK-104X CH C CAP. 0.1µF 25V K C0624 QETN1HM-106Z E CAP. 10µF 50V M C0629 QETN1HM-106Z E CAP. 10µF 50V M C0630 NCB21HK-102X CH C CAP. 1000pF 50V K C0631 NCB21HK-102X CH C CAP. 1000pF 50V K C0632 NCB21EK-104X CH C CAP. 0.1µF 25V K C0633 QETN1HM-106Z E CAP. 10µF 50V M C0634 NCB21HK-103X CH C CAP. 0.01µF 50V K C0635 NCB21HK-103X CH C CAP. 0.01µF 50V K C0636 NDC21HJ-2R0X CH C CAP. 2.0pF 50V J C0642 NDC21HJ-2R0X CH C CAP. 2.0pF 50V J C0645 NCB21HK-103X CH C CAP. 0.01µF 50V K C0646 NCB21EK-104X CH C CAP. 0.1µF 25V K C0647 QETN1CM-107Z E CAP. 100µF 16V M C0648 NCB21EK-104X CH C CAP. 0.1µF 25V K C0693 NCB21EK-104X CH C CAP. 0.1µF 25V K L0601 QQL244K-220Z PEAKING COIL 22µHK L0602 QQL244K-180Z PEAKING COIL 18µHK L0605 QQL244K-4R7Z PEAKING COIL 4.7µHK D0601 RD8.2E/B2/-T2 ZENER DIODE Q0601 2SC2412K/QR/-X CHIP TRANSISTOR IC0603 MSP3415D-QG-B3X IC (M.S. PROCESSOR) LC0601 CE42482-103Y EMI FILTER X0601 CE42546-001Z X TAL

■ PACKING PARTS LIST (Page 47)

1 LC10453-078A-H GG10044-012A-H PACKING CASE 4 RM-C112-2H RM-C117-2H REMOCON UNIT

! 6 LCT0664-001A-H LCT0819-001A-H INST BOOK

— BT-54012-1 WARRANTY CARD

No. 56068 3

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AV-25P8TEE

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 Teletext System FLOF (Fastext), WST (World standard system) 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 AC110 ~ 240V, 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-C117 (AA/R06 / UM-3 dry battery × 2)

Design & specifications are subject to change without notice.

No. 560684

Page 5

SPECIFIC SERVICE INSTRUCTIONS

SETTING OF SYSTEM CONSTANT SET (Page 9)

Table 1

CONTENTS VARIABLE RANGE INITIAL SETTING VALUE

COLOUR MULTI MSP NO SUPER BASS NO CENTER SPEAKER NO TEXT YES 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-25P8TEE

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 ENGLISH 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 BASS CENTER CHANNEL PRESET Refer to Operating Instructions. TREBLE CENTER CHANNEL POSITION 1 POSITION BALANCE CENTER SUB POWER ON AI VOLUME ON ON SCREEN DISPLAY POSITION INDICATION BBE ON TV/VIDEO TV SPATIALIZER OFF SOUND SYSTEM B/G

No. 56068 5

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AV-25P8TEE

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. 560686

Page 7

AV-25P8TEE

■ 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. 56068 7

Page 8

AV-25P8TEE

■ 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. 560688

AV25P8TEE-H #3

CTH 0009 CRT