KV-HF51P50/XF21M80/XF21M83/XF21N90/XF51M65

RM-952

RM-952

RM-952

RM-915

RM-952

6.SELF-DIAGNOSTIC CIRCUIT

 

 

 

 

IC301

 

IC001

 

 

 

 

 

 

IC003

 

 

Y/CHROMA JUNGLE

 

SYSTEM

 

 

 

 

 

 

MEMORY

FROM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

21

IK-IN

 

 

 

IO-8DAT

45

 

 

 

5 B-DAT

CRT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FROM

 

 

 

MP/

 

 

 

O-LED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

[+B] Q604 C5

 

18

 

 

 

51

 

 

 

 

 

 

PROTECT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SDA 35

 

46 IO-SDAT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

[V]Q509/507

[+BÊovercurrentÊ»OCP¼]

Occurs when an overcurrent on the +B(135) line is detected by Q604. If Q604 go to ON

 

and the voltage to pin 18 of IC301 should go down when V.SYNC is more than seven

 

verticals in a period, the unit will automatically turn off.

[VerticalÊdeflectionÊstopped]

Occurs when an absence of the vertical deflection pulse is detected by Q509 and IC001

 

shut down the power supply.

[VerticalÊdeflectionÊovercurrent]

Occurs when an overcurrent on V drive line is detected by Q507. Power supply will be

 

shut down when detect this by IC001.

[WhiteÊbalanceÊfailure]

If the RGB levels* do not balance or become low level within 5 seconds, this error will be

 

detected by IC301. TV will stay on, but there will be no picture.

 

* (Refers to the RGB levels of the AKB detection Ref pulse that detects IK.)

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Sony KV-XF51M65, KV-HF51P50, KV-XF21N90, KV-XF21M83 service manual SELF-DIAGNOSTIC Circuit, +BÊovercurrentÊ»OCP¼

KV-XF21N90, KV-XF51M65, KV-XF21M83, KV-HF51P50 specifications

The Sony KV-HF51P50, KV-XF21M83, KV-XF51M65, and KV-XF21N90 are notable models within Sony's television lineup, showcasing a blend of pioneering technology and unique characteristics that cater to diverse viewer needs.

The Sony KV-HF51P50, featuring a 51-inch screen, is recognized for its exceptional display quality, leveraging Sony's Trinitron technology, which enhances color reproduction and brightness. This model supports a 4:3 aspect ratio, making it ideal for traditional television content. The KV-HF51P50 also includes a built-in comb filter that significantly improves image clarity by reducing cross-color artifacts. Additional features such as multiple input options and enhanced sound technology provide versatility and an immersive viewing experience.

The KV-XF21M83, on the other hand, introduces the Flat CRT technology, which minimizes the distortion common in conventional curved CRT displays. With a 21-inch screen, this model is a compact option ideal for smaller living spaces. One of its standout features is the advanced picture circuitry that ensures vibrant colors and sharp images. This television model also supports a variety of input connections, allowing users to easily connect gaming consoles and DVD players, and making it a versatile choice for entertainment.

In the larger category, the KV-XF51M65 offers a generous 51-inch screen size and incorporates numerous advancements, such as Sony's Dynamically Adaptive Picture Control. This technology constantly analyzes the incoming signal and adjusts the picture for optimal brightness and contrast, ensuring a consistently excellent viewing experience. The KV-XF51M65 also includes SRS Surround Sound technology, which creates an immersive audio environment to complement the stunning visuals.

Lastly, the KV-XF21N90, featuring a 21-inch display, stands out with its stylish design and reliable performance. This model focuses on user-friendly features, including an easy-to-navigate on-screen menu and customizable settings for picture and sound. Its flat-screen design not only contributes to aesthetics but also reduces glare, making it easier to watch in bright rooms. The durability and longevity of the KV-XF21N90 ensure it remains a staple in homes for years.

In summary, the Sony KV-HF51P50, KV-XF21M83, KV-XF51M65, and KV-XF21N90 collectively showcase Sony's commitment to quality and innovation in television technology. Each model offers distinct features that cater to a range of preferences, ensuring a top-notch viewing experience for all users.