Troubleshooting

If a problem occurs when you are using the TV, check the below troubleshooting guide before calling for repair.

• No picture, no sound

Deactivate the BLUE BACK function if it is turned on.

 

• Choose the appropriate sound system. Refer to

 

“SOUND SYSTEM” on page 13.

• Snowy picture

Check the aerial cable and its connection with the TV.

 

 

• Stripes appear on the

• Interference occurs caused by other devices such as

picture

an amplifier, personal computer, or a hair drier. Move

 

such devices away from your TV.

Double-pictures

• Interference occurs caused by signal reflecting

(ghosting) occur

from mountains or building. Try to adjust the aerial’s

 

direction or use a better directionality antenna.

• Poor picture

• Choose the appropriate colour system. Refer to

 

“COLOUR SYSTEM” on page 9.

 

• Adjust the COLOUR or BRIGHT setting. Refer to

 

“PICTURE SETTING” on page 10.

• White and bright still

• Inevitable phenomenon due to the nature of the picture

image look as if it

tube. This is not a malfunction.

were coloured

 

• Top of the image from

• This is due to the condition of the video signal whereby

software products or

the image was not recorded properly. This is not a

video tape is distorted

malfunction.

• Poor sound

• Choose the appropriate sound system. Refer to

 

“SOUND SYSTEM” on page 13.

• Stereo or bilingual

• TV channel reception is poor. Change the stereo/

sound is unclear

bilingual mode to mono sound (see page 16).

• Cannot operate the

• The batteries may be exhausted. Replace with new

remote control

batteries (see page 7).

 

• Ensure that you are operating the remote control at

 

less than seven meters from the front of your TV.

• Cannot operate the

• Press TV/VIDEO button to return to TV mode and try

menus

operating the menus.

• Cannot operate the

• Deactivate the CHILD LOCK function if it is turned on

front control buttons

(see page 16).

 

 

• Colour patches appear

• This may due to the magnetized device such as a

at the corner of the

speaker near to your TV. Keep the device apart from

screen

your TV. Alternately, you can also use the magnetic-

 

shielded speaker.

 

 

• Picture is tilted

• This may due to the earth magnetism. Refer to

 

“PICTURE TILT” on page 11 to correct the tilt.

 

 

• Image takes a short

• Image required time to stabilize before display. This

period to be displayed

is not a malfunction.

 

 

• TV may emit crackling

• This is due to a sudden change in temperature

sound

and it is not a malfunction. If the crackling sound

 

is too frequent, request your service technician for

 

inspection.

 

 

• Feel a slight electric

• This is due to the static electricity of the picture tube

shock when touching

and it will not harm the human body. This is not a

the TV screen

malfunction.

 

 

• The Auto Signal

• Please check that the AUTO SIGNAL DETECT

Detect function does

function is on or off.

not work

• Turn the VCR or DVD player off, wait a while, then

 

turn it on again.

 

• Inspect the video cable connection on VIDEO-2 that

 

they are connected properly.

 

 

• Suddenly, a channel

• Some VCRs and DVD players can trigger Auto Signal

or input was

Detect even after you choose a different input.

changed to VIDEO-2

• Please turn off the AUTO SIGNAL DETECT

inputs.

function.

 

 

• “PLEASE

• Please disconnect either S-VIDEO cable or video input

DISCONNECT

cable from Video-1 input.

VIDEO-1 CABLE!”

 

appears on the

 

screen.

 

22

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

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.