JVC AV-21P8 Manuale utente

AV-21P8

No. 56095 1

MODEL NO.

XXXXX XXXXXXX

XXXXXXX XXXXX

XXXXXX

XXXXX

XXX XXXXX XXXXX

XXXXXXXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXX

SERIALNo.

XXXXXX–XXX

XXXX XX XXXX

XXX XX XXXX

Identify model name

Basic model name

BASIC CHASSIS

CM-F

AV-21P8

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-21PX 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-21PX Service Manual (No. 56039, Jul. 2000)

Note: The page in parentheses shows the one for the AV-21PX service manual (No. 56039, Jul. 2000).

AV-21P8

SERVICE MANUAL

COLOUR TELEVISION

AV-21P8(BK)

AV-21P8-BK

No. 56095

Sep. 2000

AV-21P8

No. 560952

PARTS DIFFERENCE TABLE

The different parts between AV-21PX and AV-21P8(BK) are described below:

AV-21PX AV-21P8(BK)

!REF. NO. PART NAME DESCRIPTION

PART No. PART No.

■ EXPLODED VIEW PARTS LIST (Page 32)

!13 QMP40D0-200J5 QMPR010-200-E2 POWER CORD

or QMP40D0-200J3 or QMPR010-200-K2

!18 LC20377-010B-H CM22960-076-H RATING LABEL

■ PRINTED WIRING BOARD PARTS LIST [MAIN PWB ASSY] (Page 34-)

— SCM-1613A-H2 SCM-1621A-BK MAIN PWB ASSY

IC1701 M37204MC-D47SP M37204MC-D49SP IC (MICROCOMPUTER)

IC1702 AT24C08-AV21PS AT24C08-21P9BK IC (MEMORY) (Service)

■ PRINTED WIRING BOARD PARTS LIST [INNER PIN PWB ASSY] (Page 37)

— SCM-2102A-H2 SCM-2102A-BK INNER PIN PWB ASSY

■ PRINTED WIRING BOARD PARTS LIST [CRT SOCKET PWB ASSY] (Page 37-)

— SCM-3302A-H2 SCM-3302A-BK CRT SOCKET PWB ASSY

■ PRINTED WIRING BOARD PARTS LIST [FRONT CONTROL PWB ASSY] (Page 39)

— SCM-8302A-H2 SCM-8304A-BK FRONT CONTROL PWB

ASSY

R8022 NRSA02J-681X CH MG R 680Ω1/10W J

D8002 SLR-342VR-T16 LED (RED)

SLR-342MG-T16 LED (GRN)

■ PRINTED WIRING BOARD PARTS LIST [ALC PWB ASSY] (Page 39)

— SCM0A105A-H2 SCM0A105A-BK ALC PWB ASSY

■ PRINTED WIRING BOARD PARTS LIST [IF PWB ASSY] (Page 40-)

— SCM0F302A-H2 SCM0F304A-BK IF PWB ASSY

R0123 NRSA02J-102X CH MG R 1kΩ1/10W J

R0125 NRSA02J-181X CH MG R 180Ω1/10W J

R0619 NRSA02J-102X CH MG R 1kΩ1/10W J

L0104 QQL244K-120Z PEAKING COIL 12µHK

D0104 MA111-X CHIP DIODE

Q0103 2SC2412K/QR/-X CHIP TRANSISTOR

Q0104 2SA1037AK/QR/-X SI TRANSISTOR

Q0110 DTC124EKA-X DIGI TRANSISTOR

Q0606 2SA1037AK/QR/-X SI TRANSISTOR

CF0103 QAX0339-001 CERAMIC TRAP

CF0601 SFSH4.5MCB SFE5.74MC2 CERAMIC FILTER

AV-21P8

No. 56095 3

AV-21PX AV-21P8(BK)

!REF. NO. PART NAME DESCRIPTION

PART No. PART No.

■ PRINTED WIRING BOARD PARTS LIST [AV SW PWB ASSY] (Page 41-)

— SCM0Y502A-H2 SCM0Y502A-BK AV SW PWB ASSY

■ PACKING PARTS LIST (Page 43)

1 GG10044-007A-H GG10045-004A-H PACKING CASE

4 RM-C235-1C RM-C239-1C REMOCON UNIT

5 CP30966-001-H QPA02503505 POLY BAG

!6 LCT0735-001A-H LCT0848-001A-H INST BOOK

!8 LCT0736-001A-H DIGEST MANUAL

!9 LCT0737-001A-H DIGEST MANUAL

— ATEAB001-00A MATCHING BOX

AV-21P8

No. 560954

Item Content

Dimensions (W ×H ×D) 596mm ×468.5mm ×481.5mm

Mass 25kg

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

Stereo System Bilingual in A2

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 135W (Max.) / 89W (Avg.)

Picture Tube Visible size : 51cm measured diagonally

High Voltage 29kV +1/−1.5kV (at zero beam current)

Speaker 5 ×12cm Oval type ×2

Audio Output 5W + 5W

Input (S/Video-1, Video 1Vp-p, 75Ω

Video-2 & -3,Audio) S/Video Y: 1Vp-p Positive (negative sync provided, when terminated with 75Ω)

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

Audio (L/R) 500mVrms (−4dBs), High impedance

Output Video 1Vp-p, 75Ω

Audio (L/R) 500mVrms (–4dBs), Low impedance

Headphone Jack Stereo mini jack (3.5ø)

Remote Control Unit RM-C239-1C

(Battery size : AA/R06/UM-3 ×2)

Design & specifications are subject to change without notice.

SPECIFICATIONS(Page 2)

AV-21P8

No. 56095 5

Setting item Setting value Setting item Setting value

SUB POWER ON BASS CENTER

CHANNEL POSITION 1 POSITION BALANCE CENTER

Refer to OPERATING

INSTRUCTION

VOLUME Appropriate sound volume AUTO VNR OFF

TV/VIDEO TV OFF TIMER OFF

ON SCREEN DISPLAY POSITION NUMBER DISPLAY AUTO SHUTOFF OFF

COLOUR SYSTEM AUTO PAL ECO SENSOR OFF

SOUND SYSTEM B / G AI VOLUME HIGH

BILINGUAL MODE IBLUE BACK OFF

PICTURE MODE (VSM) BRIGHT ON TIMER PR1 0:00

LIVE SPATIAL OFF CHILD LOCK OFF

TREBLE CENTER

SETTING OF SYSTEM CONSTANT SET (Page 7)

Table 1

USER SETTING VALUES (Page 7)

Table 2

SPECIFIC SERVICE INSTRUCTIONS

CHANNEL PRESET LANGUAGE THAI

Setting item Setting contents Setting value

1. COLOUR AUTO NO

2. COLOUR MULTI

3. ECO SENSOR YES

4. BASS NO-SB-ON

5. VOL. LIMITER YES

6. TEXT NO

7. MSP NO-A2

8. LANGUAGE E/T

9. EW-PIN IC YES

10. B/B OFF MUTE OFF

11. LED 3

12. D/K NICAM NO

13. ALC YES

14. BBE NO

15. E.M.C. NO

YES NO

MULTI. TRIPLE PAL

YES NO

YES-BB YES-BB-SB YES-SB

NO-SB-OFF NO-SB-ON YES-BA

YES NO

YES NO NO-A2

E/T E

YES NO

ON OFF

YES NO

AV-21P8

No. 560956

Setting Variable Initial setting

(Adjustment) range value

item

DELAY POINT 0 ~63 19

(AGC TAKE-OVER)

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 0bbb

2. DRIVE (R / B) −128 ~ +127 0 bbb

3. BRIGHT (RF/VIDEO) −128 ~ +127 0 / 0 +2 / −1 0 / −2

4. CONT. (RF/VIDEO) −42 ~ +42 0 / −6−7 / −8−8 / −7

5. COLOUR −60 ~ +68 +11 +3+15 0

6. TINT (TV / VIDEO) −64 ~ +63 +12 / 0 0 / −4

7. BLACK OFFSET (R-Y / B-Y) −8 ~ +7+4 / +2

8. SHARP (TV / VIDEO) −32 ~ +31 −15 / 0 b−20 / 0

9. TEXT (RGB) CONT. −128 ~ +77 +10 bbb

10. B.S.OFF 0 ~ +1 0 bbb

11. B.S.POINT 0 ~ +7 +6 bbb

12. DC TRAN RATE 0 ~ +7 0 bbb

13. APA-CON FO/SW 0 ~ +3 +1 bbb

14. VSM PHASE 0 ~ +3 +3 bbb

15. VSM GAIN 0 ~ +3 +1 bbb

16. CLL SW 0 ~ +1 +1 bbb

17. CLL LEVEL 0 ~ +3 +2 bbb

18. ABL POINT 0 ~ +7 +5 bbb

19. ABL GAIN 0 ~ +7 +1 bbb

20. Y-DL (TV / VIDEO / S) 0 ~ +7 +2 / +4 / +2 +3 / +3 / +2 +2 / +2 / +2 +4 / +4 / +2

21. P.ACL SW 0 ~ +1 +1 bbb

22. WPL SW 0 ~ +1 0 bbb

23. Y GAMMA 0 ~ +1 0 bbb

: Do not adjust.

AV-21P8

No. 56095 7

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 +4V (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 +4V (W & G).

Adjustment part Description

6. TINT

NTSC 3.58 TINT Value (B) in the figure: Set to +3V (W & Cy).

■DEFLECTION CIRCUIT ADJUSTMENT (Page 21)

[SUB MENU 4. DEF]

Initial setting value

Setting item Adjustment name Variable range 50Hz 60Hz

1. TRAPEZ Trapezoidal distortion correction −32 ~ +31 −15 −3

2. V-SHIFT Vertical center −32 ~ +31 −19 +12

3. V-SIZE Vertical height −64 ~ +63 +12 0

4. H-CENT Horizontal center −16 ~ +15 −6 0

5. H-SIZE Horizontal width −64 ~ +63 +6 0

6. EW-PIN Side pin correction −64 ~ +63 −10 0

7. V-S. CR Vertical height correction −64 ~ +63 0 +2

8. V-EDGE Vertical edge correction −64 ~ +63 +3 +2

9. EW-COR Side pin fore correction −64 ~ +63 −1 −1

10. V-LINE Vertical linearity −16 ~ +15 0 +2

11. H-COMP Horizontal compensation 0 ~ +15 +3 0

: Do not adjust.

■VSM PRESET ADJUSTMENT (Page 25)

[Setting Values for SUB MENU 5. VSM PRESET]

VSM preset

VSM mode BRIGHT STANDARD SOFT

Setting item

1. TINT 0 bb

bbb

SETTING VALUE

2. COLOUR 0 bb

bbb

SETTING VALUE

3. BRIGHT 0 bb

bbb

SETTING VALUE

4. CONT. +15 0 −4

SETTING VALUE

5. SHARP 0 bb

b−3

SETTING VALUE : Do not adjust.

AV-21P8

No. 560958

: Do not adjust.

■CENTER ADJUSTMENT (Page 25)

[SUB MENU 6. CENTER]

Setting item Initial setting value (fixed)

TREBLE (Do not adjust.) +2

BASS (Do not adjust.) +3

CTH 0009

CRT

AV21P8BK-BK #3

VICTOR COMPANY OF JAPAN, LIMITED

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

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