JVC AV-21MXP6/V, AV-25MXP6/V PAL V. Position, Ntsc V. Position, PAL V. Size, Ntsc V. Size

Page 31

Item

 

Measuring

 

Test point

 

 

 

Adjustment part

 

Description

 

instrument

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

V. POSITION

Signal

 

 

 

 

 

 

 

[4. DEF]

PAL V. POSITION

 

 

generator

 

 

 

 

 

 

 

1. V-SHIFT

(1) Receive a circle pattern signal of vertical frequency

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

50Hz (PAL).

 

 

Remote

 

 

 

 

 

 

 

 

 

 

 

 

 

(2)

Select 4. DEF from the SERVICE MODE.

 

 

control unit

 

 

 

 

 

 

 

 

 

 

 

 

 

(3)

Select <1. V-SHIFT>.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(4)

Set the initial setting value of <1. V-SHIFT>.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(5)

Adjust <1. V-SHIFT>to make "A = B".

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A

(6)

Press the [OK] key to memorize the set values.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NTSC V. POSITION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(1)

Receive a circle pattern signal of vertical frequency

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60Hz (NTSC).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(2)

Follow the same step 2 to 6 as in PAL V. POSITION.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

V. SIZE

Signal

 

 

 

 

 

 

 

[4. DEF]

PAL V. SIZE

 

 

generator

 

 

 

 

 

 

 

3. V-SIZE

(1) Receive a PAL crosshatch signal.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(2)

Select 4. DEF from the SERVICE MODE.

 

 

Remote

 

 

 

 

 

 

 

 

 

 

 

 

 

(3)

Select <3. V-SIZE>.

 

 

control unit

 

 

 

 

 

 

 

 

 

 

 

 

 

(4)

Set the initial setting value of <3. V-SIZE>.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(5)

Adjust <3. V-SIZE>to make the vertical screen size

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

to 92% of the picture size.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(6)

Press the [OK] key to memorize the set values.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NTSC V. SIZE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Screen

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Picture

(1)

Receive a NTSC crosshatch signal.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(2) Follow the same step 2 to 6 as in PAL V. SIZE.

size 92%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

size 100%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

H. POSITION

Signal

 

[4. DEF]

PAL H. POSITION

 

generator

 

4. H-CENT

(1) Receive a PAL circle pattern signal.

 

 

 

 

 

 

 

 

(2)

Select 4. DEF from the SERVICE MODE.

 

Remote

 

 

 

(3)

Select <4. H-CENT>.

 

control unit

 

 

 

(4)

Set the initial setting value of <4. H-CENT>.

 

 

 

 

 

 

 

 

(5)

Adjust <4. H-CENT>to make "C = D".

 

 

 

 

 

 

 

 

 

 

 

C

D

(6)

Press the [OK] key to memorize the set values.

 

 

 

 

 

 

 

 

 

 

 

 

 

NTSC H. POSITION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(1)

Receive a NTSC circle pattern signal.

 

 

 

 

 

 

 

 

(2)

Follow the same step 2 to 6 as in PAL H. POSITION.

 

 

 

 

 

 

 

 

 

 

(No.YA476)1-31

Page 30 Page 32
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Page 30 Page 32
Contents AV-29MXP6/V AV-21MXP6/V AV-25MXP6/V AV-29MXP6/V Items ContentsNo.YA4761-3 Safety PrecautionsLeakage Current Check Alternate Check MethodCinema Surround Features DVD Picture ModeAuto Signal Detect Picture ModeNo.YA4761-5 Techninal Information Main MI-COM CPU PIN FunctionRemoving the Speaker Disassembly Procedure AV-21MXP6/V Removing the Rear CoverWire Clamping and Cable Tying Removing the Main PW BoardNo.YA4761-7 AV-21MXP6/XDisassembly Procedure AV-25MXP6/V Removing the Rear Cover No.YA4761-9 AV-25MXP6/VRemove the Rear Cover Remove the 4 screws C as shown Disassembly Procedure AV-29MXP6/V Removing the Rear CoverRemoving the Chassis Chassis Base and Control Base Removing the AV Terminal BoardNo.YA4761-11 Front SideMenu Memory IC ReplacementRemote Control Menu Operation Picture Setting System Constant SettingSettings of Factory Shipment Button Operation Remote Control Direct OperationVSM Preset Feature SettingInstall Setting Service Mode Setting ItemsTransistors, diodes, variable resistors, etc Replacement of Chip ComponentHow to install Chip parts Resistors, capacitors, etc Soldering Iron„ VSM Preset Setting Adjustment PreparationPreset Setting Before Adjustment Adjustment Items „ Check ItemsFront Adjustment Location AV-21MXP6/V, AV-25MXP6/VNo.YA4761-17 Main PWB ASS’Y CRT Socket Adjustment Location AV-29MXP6/V18 No.YA476 Release of Service Mode Service Mode ItemsSetting Method Memorize the Adjustment Data20 No.YA476 Service Mode Flow ChartNo.YA4761-21 Initial Setting Value of Service ModePAL Secam NTSC3 NTSC4 Video 32 ~ +3122 No.YA476 No.YA4761-23 AV-25MXP6/V Function AV-21MXP6/V FunctionMode 100Hz 300Hz 1kHz 3kHz 8kHzNo.YA4761-25 AV-29MXP6/V Function+12 +11LIN 32 ~ +31 Compress43 50Hz Others 60Hz S.CR 32 ~ +3150Hz 60Hz 43 50HzTheater Bright SoftCool Warm Normal Theater High Voltage HV voltmeter Adjustment Procedure Check ItemMeasuring Test point Adjustment part Description Instrument B1 VoltageFocus Delay PointTuner / if Circuit AGCSize PositionPAL V. Position Ntsc V. PositionPAL Side PIN PAL H. SizeNtsc H. Size Side PINCorner PIN LinearityPAL V. Linearity Ntsc V. LinearityPAL H. BOW BOWNtsc H. BOW Select 8. COR-UP Follow the same to 7 as in PAL Side PINPAL Trapezium PIN Ntsc Trapezium PINComposite White Balance „ Video 2 SET ComponentVideo Circuit WhiteSUB Colour SUB BrightSUB ContrastNtsc 4.43 Tint SUB TintPAL Tint Ntsc 3.58 TintWarm and Normal VSM Preset SettingSTANDARD, Soft and Theater 1. R Drive to 3. B Drive to the valuesPurity and Convergence „ Purity Adjustment „ Dynamic Convergence Adjustment „ Static Convergence AdjustmentNo.YA4761-41 Self Check Indicating Function Indication by the Power LEDSelf Check Functions Outline Self Check ItemsVPT Copyright 2006 Victor Company of Japan, Limited Schematic DiagramsSpecified Voltage and Waveform Values SafetyIndication of Parts Symbol Example Indications on the Circuit Diagram2No.YA476 ContentsAV-21MXP6/V, AV-25MXP6/V AV-29MXP6/V Main PWB PatternNo.YA4762-32-4No.YA476 Main PWBFront Control PWB1/2 No.YA4762-72-8No.YA476 Main PWB Circuit Diagram AV-21MXP6/V 1/4 2/4 SHEET1No.YA4762-92-10No.YA476 Main PWB Circuit Diagram AV-21MXP6/V 3/44/4 SHEET2No.YA4762-112-12No.YA476 Main PWB Circuit Diagram AV-25MXP6/V 1/4 2/4 SheetNo.YA4762-132-14No.YA476 Main PWB Circuit Diagram AV-25MXP6/V 3/44/4 SHEET4No.YA4762-152-16No.YA476 Main PWB Circuit Diagram AV-29MXP6/V 1/2 SheetNo.YA4762-172-18No.YA476 Main PWB Circuit Diagram AV-29MXP6/V 2/2 SheetNo.YA4762-192-20No.YA476 CRT Socket PWB Circuit Diagram AV-29MXP6/V SheetNo.YA4762-212-22No.YA476 Front Control PWB Circuit Diagram AV-29MXP6/V SheetNo.YA4762-232-24No.YA476 Bass PWB Circuit Diagram SheetNo.YA4762-25 26No.YA476 FrontNo.YA4762-272-28No.YA476 Main PWB Pattern AV-29MXP6/VNo.YA4762-292-30No.YA476 CRT Socket PWB Pattern AV-29MXP6/VBass PWB Pattern Solder Side Bass PWB Pattern Parts SideNo.YA4762-312-32No.YA476 Front Control PWB Pattern AV-29MXP6/VNo.YA4762-332-34No.YA476 Voltage Charts AV-21MXP6/V, AV-25MXP6/VNo.YA4762-35 Waveforms AV-21MXP6/V, AV-25MXP6/VMain PWB 36No.YA476No.YA476 No.YA4763-1 Parts ListContents No.YA4763-3 Using P.W. Board & Remote Control Unit106 103 105 104 T522 100 V01 L01 101 1024No.YA476 No.YA4763-5 Printed Wiring Board Parts List6No.YA476 No.YA4763-7 8No.YA476 No.YA4763-9 10No.YA476 487 5No.YA4763-11 12No.YA476 V01 L01 100 101 102 106 103 105 104No.YA4763-13 Main P.W. Board Assy SCW-1646A-H214No.YA476 No.YA4763-15 16No.YA476 No.YA4763-17 B Assy AV-29MXP6/V 18No.YA476No.YA4763-19 V01 L01 100 101 103 DY01 2822 3018 102 40 T52220No.YA476 Main P.W. Board Assy SCW-1647A-H2No.YA4763-21 22No.YA476 No.YA4763-23 24No.YA476 CRT Socket P.W. Board Assy SCW-3037A-H2No.YA4763-25 Bass P.W. Board Assy SCW-6003A-H2Packing Packing Parts List Colour Television Do not allow objects or liquid into the cabinet openings Main features Knowing your TV’s featuresNo. Press Remote control buttons and basic functionsRemote control buttons and basic functions Front of the TV TV buttons and functionsTurn off the equipment including the TV before connecting Setting up your TVSetting up your TV Picture Mode Basic setting for pictureColour System Picture Booster Picture Setting White BalanceBlue Back Advanced setting for pictureAI ECO Sensor ECO/ECO Mode CompressPIP Original features for pictureBalance Basic setting for soundSound Mode Sound SystemEqualizer Advanced setting for soundAI Volume Cinema SurroundDVD Menu Auto Signal DetectDVD Picture Mode DVD Sound ModeCustomized setting Beep VIDEO-2 Setting DisplayAuto Program TV channel presettingDelete TV channel presetting CH/CC number Additional preparation Before connectingTroubleshooting AV-25MXP6 SpecificationsModel 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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