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

STANDARD CIRCUIT DIAGRAM

NOTE ON USING CIRCUIT DIAGRAMS

1.SAFETY

The components identified by the symbol and shading are critical for safety. For continued safety replace safety ciritical components only with manufactures recommended parts.

2.SPECIFIED VOLTAGE AND WAVEFORM VALUES

The voltage and waveform values have been measured under the following conditions.

(1)Input signal

: Colour bar signal

(2)Setting positions of

 

 

each knob/button and

: Original setting position

variable resistor

 

when shipped

(3)Internal resistance of tester

: DC 20k/V

 

(4)Oscilloscope sweeping time

: H

20µs / div

 

: V

5ms / div

 

: Othters

Sweeping time is

 

 

specified

(5)Voltage values

: All DC voltage values

Since the voltage values of signal circuit vary to some extent according to adjustments, use them as reference values.

3.INDICATION OF PARTS SYMBOL [EXAMPLE]

In the PW board

: R1209 R209

4.INDICATIONS ON THE CIRCUIT DIAGRAM

(1)Resistors

Resistance value

 

No unit

: []

K

: [k]

M

: [M]

Rated allowable power

No indication

: 1/16 [W]

Others

: As specified

Type

 

No indication

: Carbon resistor

OMR

: Oxide metal film resistor

MFR

: Metal film resistor

MPR

: Metal plate resistor

UNFR

: Uninflammable resistor

FR

: Fusible resistor

Composition resistor 1/2 [W] is specified as 1/2S or Comp.

(2)Capacitors

 

Capacitance value

 

1 or higher

: [pF]

less than 1

: [µF]

Withstand voltage

 

No indication

: DC50[V]

Others

: DC withstand voltage [V]

AC indicated

: AC withstand voltage [V]

Electrolytic Capacitors

47/50[Example]: Capacitance value [µF]/withstand voltage[V]

Type

 

 

No indication

: Ceramic capacitor

 

MM

: Metalized mylar capacitor

PP

: Polypropylene capacitor

MPP

: Metalized polypropylene capacitor

MF

: Metalized film capacitor

TF

: Thin film capacitor

 

BP

: Bipolar electrolytic capacitor

TAN

: Tantalum capacitor

 

(3)Coils

 

 

No unit

: [µH]

 

Others

: As specified

 

(4)Power Supply

 

 

 

: B1

: B2 (12V)

 

: 9V

: 5V

Respective voltage values are indicated

 

(5)Test point

 

 

: Test point

: Only test point display

(6)Connecting method

 

 

 

: Connector

: Wrapping or soldering

: Receptacle

(7)Ground symbol

: LIVE side ground

: ISOLATED(NEUTRAL) side ground

: EARTH ground

: DIGITAL ground

5.NOTE FOR REPAIRING SERVICE

This model's power circuit is partly different in the GND. The difference of the GND is shown by the LIVE : ( ) side GND and the ISOLATED(NEUTRAL) : ( ) side GND. Therefore, care must be taken for the following points.

(1)Do not touch the LIVE side GND or the LIVE side GND and the ISOLATED(NEUTRAL) side GND simultaneously. if the above caution is not respected, an electric shock may be caused. Therefore, make sure that the power cord is surely removed from the receptacle when, for example, the chassis is pulled out.

(2)Do not short between the LIVE side GND and ISOLATED(NEUTRAL) side GND or never measure with a measuring apparatus measure with a measuring apparatus ( oscilloscope, etc.) the LIVE side GND and ISOLATED(NEUTRAL) side GND at the same time.

If the above precaution is not respected, a fuse or any parts will be broken.

Since the circuit diagram is a standard one, the circuit and circuit constants may be subject to change for improvement without any notice.

NOTE

Due improvement in performance, some part numbers show in the circuit diagram may not agree with those indicated in the part list.

When ordering parts, please use the numbers that appear in the Parts List.

(No.YA476)2-1

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JVC AV-25MXP6/V Safety, Specified Voltage and Waveform Values, Indication of Parts Symbol Example, No.YA4762-1

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.