JVC service manual Items Contents, AV-21MXP6/V AV-25MXP6/V AV-29MXP6/V

Page 2

SPECIFICATION

Items

 

 

Contents

 

 

 

 

 

 

 

AV-21MXP6/V

 

AV-25MXP6/V

AV-29MXP6/V

 

 

 

 

 

 

 

 

Dimensions (W ⋅

H ⋅ D)

64.9 cm ⋅ 46.5 cm ⋅ 46.9 cm

72.8 cm ⋅ 53.6 cm ⋅ 47.6 cm

81.2 cm ⋅ 58.4 cm ⋅ 52.1 cm

 

 

 

 

 

 

 

Mass

 

23.5 kg

 

32.0 kg

 

43.0 kg

 

 

 

 

 

 

 

TV RF System

 

B, G, I, D, K, M

 

 

 

 

 

 

 

 

 

Colour System

 

PAL / SECAM / NTSC 3.58 / NTSC 4.43

 

 

 

 

 

 

 

 

 

Stereo System

 

PB STREO

 

 

 

 

 

 

 

 

 

 

Teletext System

 

 

- - -

 

 

 

 

 

 

 

 

Receiving

VHF Low

46.25MHz - 140.25MHz (AS0 - S6)

 

 

Frequency

 

 

 

 

 

 

VHF High

147.25MHz - 423.25MHz (S7 - S36)

 

 

 

 

 

 

 

 

 

 

 

UHF

431.25MHz - 863.25MHz (S37 - C57)

 

 

 

 

 

 

CATV

Mid (X - Z+2, S1 - S10) / Super (S11 - S20) / Hyper (S21 - S41) bands

 

 

 

 

 

 

 

Intermediate

VIF

38.0MHz (B, G, I, D, K, M)

 

 

 

 

Frequency

 

 

 

 

 

 

SIF

32.26 MHz (5.74 MHz: B), 32.15MHz (5.85 MHz: G), 31.45 MHz (6.55 MHz: I)

 

 

 

31.75 MHz (6.5 MHz: D), 32.15MHz (5.85 MHz: K), 33.5MHz (4.5MHz : M)

 

 

 

 

 

 

 

Colour Sub

PAL

4.43 MHz

 

 

 

 

Carrier

 

 

 

 

 

 

SECAM

4.40625 MHz / 4.25 MHz

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NTSC

3.58 MHz / 4.43 MHz

 

 

 

 

 

 

 

 

 

Power Input

 

AC110 V - AC240 V, 50 Hz/60 Hz (Operating Voltage 90V~260V)

 

 

 

 

 

Power Consumption

105W (Max)/ 73W (Avg)

 

137W (Max)/ 91w (Avg)

170W (Max)/ 109w (Avg)

 

 

 

 

 

 

 

Picture Tube

 

Visible size : 52.1 cm,

 

Visible size : 61.0 cm,

 

Visible size : 69.0 cm,

 

 

Measured diagonally

 

Measured diagonally

 

Measured diagonally

 

 

H: 41.6 cm ⋅ V: 31.5 cm

 

H: 48.6 cm ⋅ V: 36.8 cm

H: 55.1 cm ⋅ V: 41.6 cm

 

 

 

 

 

 

 

High Voltage

 

28.5 kV ±1.5 kV

 

30.5 kV ±1.5 kV

 

31.5 kV +1kV/-1.5kV

 

 

(at zero beam current)

 

(at zero beam current)

 

(at zero beam current)

Speaker

 

6.5 cm ⋅ 13 cm, oval type ⋅

2

 

 

 

 

 

 

 

Audio Power Output

7 W + 7 W (Rated power output)

 

10 W + 10 W (Rated power output)

 

 

 

 

 

 

 

Aerial Input

 

75 Ω unbalanced, coaxial

 

 

 

 

 

 

 

 

 

 

 

Video / Audio

Component Video

RCA pin jack ⋅ 3

 

 

 

 

Input-1/2/3

[VIDEO-2]

Y:1V(p-p), positive (negative sync), 75Ω

 

 

 

 

Cb/Cr:0.7V(p-p), 75Ω

 

 

 

 

 

 

 

 

 

 

 

 

S-Video

Mini-DIN 4 pin ⋅ 1

 

 

 

 

 

[VIDEO-1]

Y: 1V(p-p), positive (negative sync provided), 75Ω

 

 

 

 

C: 0.286V(p-p) (Burst signal), 75Ω

 

 

 

 

 

 

 

 

 

Video

1V(p-p), negative sync, 75Ω

, RCA pin jack ⋅ 3

 

 

 

 

 

 

 

 

Audio

500mV(rms) (-4dBs), high impedance, RCA pin jack ⋅

6

 

 

 

 

 

 

 

 

Video / Audio

Video

1V(p-p), 75?, RCA pin jack ⋅

1

 

 

 

Output

 

 

 

 

 

 

Audio

500mV(rms)(-4dBs), Low impedance, RCA pin jack ⋅

2

 

 

 

 

 

 

 

 

 

 

Headphone jack

 

3.5 mm stereo mini jack ⋅ 1

 

 

 

 

 

 

 

 

Remote Control Unit

RM-C1285 (UM-3/AA/R6 dry cell battery ⋅ 2)

 

 

 

 

 

 

 

 

 

Design and specifications subject to change without notice.

1-2 (No.YA476)

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Contents AV-29MXP6/V Items Contents AV-21MXP6/V AV-25MXP6/V AV-29MXP6/VAlternate Check Method Safety PrecautionsLeakage Current Check No.YA4761-3Picture Mode Features DVD Picture ModeAuto Signal Detect Cinema SurroundTechninal Information Main MI-COM CPU PIN Function No.YA4761-5Removing the Main PW Board Disassembly Procedure AV-21MXP6/V Removing the Rear CoverWire Clamping and Cable Tying Removing the SpeakerAV-21MXP6/X No.YA4761-7Disassembly Procedure AV-25MXP6/V Removing the Rear Cover AV-25MXP6/V No.YA4761-9Removing the AV Terminal Board Disassembly Procedure AV-29MXP6/V Removing the Rear CoverRemoving the Chassis Chassis Base and Control Base Remove the Rear Cover Remove the 4 screws C as shownFront Side No.YA4761-11Memory IC Replacement MenuRemote Control Direct Operation System Constant SettingSettings of Factory Shipment Button Operation Remote Control Menu Operation Picture SettingService Mode Setting Items Feature SettingInstall Setting VSM PresetSoldering Iron Replacement of Chip ComponentHow to install Chip parts Resistors, capacitors, etc Transistors, diodes, variable resistors, etcAdjustment Items „ Check Items Adjustment PreparationPreset Setting Before Adjustment „ VSM Preset SettingNo.YA4761-17 Adjustment Location AV-21MXP6/V, AV-25MXP6/VFront 18 No.YA476 Adjustment Location AV-29MXP6/VMain PWB ASS’Y CRT Socket Memorize the Adjustment Data Service Mode ItemsSetting Method Release of Service ModeService Mode Flow Chart 20 No.YA47632 ~ +31 Initial Setting Value of Service ModePAL Secam NTSC3 NTSC4 Video No.YA4761-2122 No.YA476 No.YA4761-23 100Hz 300Hz 1kHz 3kHz 8kHz AV-21MXP6/V FunctionMode AV-25MXP6/V Function+11 AV-29MXP6/V Function+12 No.YA4761-25S.CR 32 ~ +31 Compress43 50Hz Others 60Hz LIN 32 ~ +3143 50Hz 50Hz 60HzCool Warm Normal Theater Bright SoftTheater B1 Voltage Adjustment Procedure Check ItemMeasuring Test point Adjustment part Description Instrument High Voltage HV voltmeterAGC Delay PointTuner / if Circuit FocusNtsc V. Position PositionPAL V. Position SizeSide PIN PAL H. SizeNtsc H. Size PAL Side PINNtsc V. Linearity LinearityPAL V. Linearity Corner PINNtsc H. BOW BOWPAL H. BOW Ntsc Trapezium PIN Follow the same to 7 as in PAL Side PINPAL Trapezium PIN Select 8. COR-UPWhite „ Video 2 SET ComponentVideo Circuit Composite White BalanceContrast SUB BrightSUB SUB ColourNtsc 3.58 Tint SUB TintPAL Tint Ntsc 4.43 Tint1. R Drive to 3. B Drive to the values VSM Preset SettingSTANDARD, Soft and Theater Warm and NormalPurity and Convergence „ Purity Adjustment No.YA4761-41 „ Static Convergence Adjustment„ Dynamic Convergence Adjustment Self Check Items Indication by the Power LEDSelf Check Functions Outline Self Check Indicating FunctionVPT Schematic Diagrams Copyright 2006 Victor Company of Japan, LimitedIndications on the Circuit Diagram SafetyIndication of Parts Symbol Example Specified Voltage and Waveform ValuesMain PWB Pattern ContentsAV-21MXP6/V, AV-25MXP6/V AV-29MXP6/V 2No.YA476Main PWB No.YA4762-32-4No.YA476Front Control PWB1/2 Main PWB Circuit Diagram AV-21MXP6/V 1/4 2/4 SHEET1 No.YA4762-72-8No.YA476Main PWB Circuit Diagram AV-21MXP6/V 3/44/4 SHEET2 No.YA4762-92-10No.YA476Main PWB Circuit Diagram AV-25MXP6/V 1/4 2/4 Sheet No.YA4762-112-12No.YA476Main PWB Circuit Diagram AV-25MXP6/V 3/44/4 SHEET4 No.YA4762-132-14No.YA476Main PWB Circuit Diagram AV-29MXP6/V 1/2 Sheet No.YA4762-152-16No.YA476Main PWB Circuit Diagram AV-29MXP6/V 2/2 Sheet No.YA4762-172-18No.YA476CRT Socket PWB Circuit Diagram AV-29MXP6/V Sheet No.YA4762-192-20No.YA476Front Control PWB Circuit Diagram AV-29MXP6/V Sheet No.YA4762-212-22No.YA476Bass PWB Circuit Diagram Sheet No.YA4762-232-24No.YA476Front No.YA4762-25 26No.YA476Main PWB Pattern AV-29MXP6/V No.YA4762-272-28No.YA476Bass PWB Pattern Parts Side CRT Socket PWB Pattern AV-29MXP6/VBass PWB Pattern Solder Side No.YA4762-292-30No.YA476Front Control PWB Pattern AV-29MXP6/V No.YA4762-312-32No.YA476Voltage Charts AV-21MXP6/V, AV-25MXP6/V No.YA4762-332-34No.YA476Waveforms AV-21MXP6/V, AV-25MXP6/V No.YA4762-3536No.YA476 Main PWBNo.YA476 Parts List No.YA4763-1Contents Using P.W. Board & Remote Control Unit No.YA4763-34No.YA476 100 V01 L01 101 102106 103 105 104 T522 Printed Wiring Board Parts List No.YA4763-56No.YA476 No.YA4763-7 8No.YA476 No.YA4763-9 487 5 10No.YA476No.YA4763-11 V01 L01 100 101 102 106 103 105 104 12No.YA476Main P.W. Board Assy SCW-1646A-H2 No.YA4763-1314No.YA476 No.YA4763-15 16No.YA476 No.YA4763-17 18No.YA476 B Assy AV-29MXP6/VV01 L01 100 101 103 DY01 2822 3018 102 40 T522 No.YA4763-19Main P.W. Board Assy SCW-1647A-H2 20No.YA476No.YA4763-21 22No.YA476 No.YA4763-23 CRT Socket P.W. Board Assy SCW-3037A-H2 24No.YA476Bass P.W. Board Assy SCW-6003A-H2 No.YA4763-25Packing Packing Parts List Colour Television Do not allow objects or liquid into the cabinet openings Knowing your TV’s features Main featuresRemote control buttons and basic functions No. PressRemote control buttons and basic functions TV buttons and functions Front of the TVSetting up your TV Turn off the equipment including the TV before connectingSetting up your TV Colour System Basic setting for picturePicture Mode Picture Setting White Balance Picture BoosterCompress Advanced setting for pictureAI ECO Sensor ECO/ECO Mode Blue BackOriginal features for picture PIPSound System Basic setting for soundSound Mode BalanceCinema Surround Advanced setting for soundAI Volume EqualizerDVD Sound Mode Auto Signal DetectDVD Picture Mode DVD MenuCustomized setting VIDEO-2 Setting Display BeepTV channel presetting Auto ProgramDelete TV channel presetting CH/CC number Before connecting Additional preparationTroubleshooting Specifications AV-25MXP6Model AV-29B316 AV-29M316 AV-29S356 AV-29B316BK

AV-29MXP6/V, AV-21MXP6/V, AV-25MXP6/V specifications

The JVC AV-25MXP6/V, AV-21MXP6/V, and AV-29MXP6/V are a trio of high-performance CRT televisions that represent a combination of cutting-edge technology and practical design, catering to the diverse needs of home entertainment enthusiasts. These models are characterized by their impressive picture quality, robust build, and user-friendly features, making them a prominent choice during their production era.

One of the key features of these models is their screen sizes, which cater to different room sizes and viewing preferences. The AV-25MXP6/V offers a compact 25-inch display, ideal for smaller living spaces or bedrooms, while the AV-21MXP6/V with its 21-inch screen is perfect for desk setups or as a secondary television. The AV-29MXP6/V, on the other hand, boasts a larger 29-inch display, making it suitable for home theaters or larger family rooms.

JVC is renowned for its superior picture technology, and these models are no exception. They utilize a high-quality CRT screen that provides deep contrast, vivid colors, and sharp details. The picture performance is further enhanced by JVC's proprietary circuitry, including a dynamic contrast system that adjusts brightness and contrast levels based on the content being displayed, resulting in a more immersive viewing experience.

Moreover, these televisions come equipped with several input options, including RF, composite, and S-video inputs, allowing users to connect multiple external devices such as DVD players, game consoles, and VCRs. With built-in tuners, viewers can easily access over-the-air broadcasting, making these models versatile entertainment hubs.

Another noteworthy characteristic is the user-friendly interface that JVC has engineered into the AV-25MXP6/V, AV-21MXP6/V, and AV-29MXP6/V models. The on-screen menu provides quick access to settings and customization options, allowing users to tailor the viewing experience to their preferences, including the ability to adjust color tones and picture settings.

In addition to their functionality, these televisions also sport an elegant design that incorporates a sleek frame and aesthetically pleasing finish, making them a suitable complement to any home décor.

Overall, the JVC AV-25MXP6/V, AV-21MXP6/V, and AV-29MXP6/V models represent a harmonious blend of technology, style, and user-centric features, making them reliable choices for anyone seeking quality CRT televisions for their home entertainment needs. Though newer technologies have since emerged, these models remain a fond memory for many who experienced their remarkable performance.
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