JVC AV-20N3/D, AV-20NMG3/-A, AV-20NMG3B service manual Specifications, Ents

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AV-20N3

AV-20NMG3

AV-20NMG3B

SPECIFICATIONS

ITEM

CONT ENTS

AV-20N3

AV-20NMG3

AV-20NMG3B

AV-20N3/D

AV-20NMG3/-A

 

Dimensions(W×H×D)

619mm×458mm×488mm

 

 

 

 

 

 

 

 

 

 

 

 

Mass

 

19kg

 

 

 

 

 

 

 

 

 

 

 

 

 

TV RF System

 

B/G, I, D/K

B/G, I, D/K,M

Colour System

RF Mode

PAL / SECAM

PAL / SECAM / NTSC3.58 / NTSC4 .43

VIDEO Mode

PAL / SECAM / NTSC3.58 / NTSC4 .43

 

 

 

 

 

 

 

 

 

 

 

 

 

Picture Tube

 

Visible size: 48cm measured diagonally

 

 

 

 

 

 

 

High Voltage

 

26.5kV±1.5kV(at zero beam current)

 

 

 

 

 

 

 

 

 

 

 

 

 

Receiving Frequency VHF (VL)

46.25MHz168.25MHz

 

 

 

 

 

 

 

VHF (VH)

175.25MHz463.25MHz

 

 

 

 

 

 

 

 

UHF

471.25MHz863.25MHz

 

 

 

 

 

 

 

 

 

Cable TVs of Mid (X-Z, S1-S10)

 

 

 

 

CATV

Super (S11-S20) & Hyper (S21-S41)

 

 

 

 

 

 

 

 

 

bands receivable

 

 

 

Intermediate

VIF Carrier

38.0MHz

 

 

 

 

 

 

 

32.5MHz (5.5MHz)

32.5MHz(5.5MHz) /33.5MHz (4.5MHz)

Frequency

 

SIF Carrier

31.5MHz (6.5MHz)

31.5MHz (6.5MHz)

 

 

 

32.0MHz (6.0MHz)

32.0MHz (6.0MHz)

 

 

PAL (4.43MHz),

 

 

 

Colour Sub Carrier Frequency

SECAM (4.40625MHz / 4.25MHz)

 

 

 

 

 

 

 

 

NTSC (3.58MHz / 4.43MHz)

 

 

 

 

 

AC110240V, 50 / 60Hz

 

 

 

Power Input

Rated Voltage

 

 

 

 

 

 

 

 

 

 

 

 

Power Consumption

90W (Max) / 60W(Avg)

 

 

 

 

 

 

 

 

 

 

 

 

Speaker

 

5cm×12 cm, Oval type ×2

 

 

 

 

 

 

 

 

 

 

 

 

 

Audio Output

 

3W (monaural)

 

 

 

 

 

 

 

 

 

 

 

 

 

Aerial Input Terminal

75Ω Unbalanced

 

 

 

 

 

 

 

 

 

 

 

 

Input

Video

1V(p-p), 75Ω (Front / Rear)

 

 

 

 

 

 

 

Audio

500mV(rms) (-4dBs), High impedance,

 

 

 

 

 

 

 

 

RCA×2 (Front / Rear)

 

 

 

 

 

 

 

 

Output

Video

1V(p-p), 75Ω

 

 

 

 

 

 

 

Audio

500mV(rms) (-4dBs), Low impedance,

 

 

 

 

 

 

 

Headphone jack

 

3.5mm mini jack

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RM-C364GY

[AV-20NMG3 / AV-20NMG3/-A]

Remote Control Unit

(Battery size : AA / R06 / UM-3×2)

: RM-C364GY

 

 

 

[AV-20NMG3B]

 

 

 

: RM-C364

 

 

 

(Battery size : AA / R06 / UM-3×2)

Design and specifications are subject to change without notice.

2

No. 52025

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Contents Contents AV-20N3 SpecificationsEnts AV-20NMG3Safety Precautions Micro Computer FeaturesMemory SCL 2/SDA2 VIDEO/CHROMA Decorder SCL 1/SDA1Functions Front Panel Rear TerminalRemote Control Unit Model Name Main Difference ListPart Name Specific Service Instructions Disassembly ProcedureSpeaker System CONSTANT-Ⅰ KEY Assignment of Remote Control UnitService Menu System CONSTANT-ⅡUser Setting Values Setting of System Constant SETSetting item Setting contents Setting item Setting valueInitial Setting Value of Service Menu PAL Secam PresetSound System Do Not Adjust Setting item Locations of Front Panel Buttons and LAM PS Replacement of IC301 if V/C DecoderProcedures Adjustment Items Service AdjustmentsBefore Starting Service Adjustment Measuring Instrument and FixturesBasic Operation of Service Menu KEY Assignment of Remote Control Unit Service MenuSetup Tour Method of settingC, 3.DEF and 4.VSM Preset Should be OFFService Menu Flow Chart TOP Adjustment LocationsSolder Side UpperfocusFocus Adjustment AdjustmentsB1 Power Supply If Circuit AdjustmentAGC Delay PointPoint AGC Take Over OtherVideo / Chroma Circuit Adjustment Ad justment Remote Method of adjustment without measuring instrumentSUB Bright SUBColour Ⅱ Socket TintCRT Secam Control unit BL AdjustAd justment part Description Remote BL ACKDeflection Circuit Adjustment PositionScurve VSM Preset SettingVER. Scurve TOP# P/C Magnets Purity / Convergence AdjustmentPurity Adjustment Static Convergence Adjustment Dynamic Convergence AdjustmentSoldering Iron Replacement of Chip ComponentReplacement Steps AV-20N3 AV-20NMG3 AV-20NMG3B