TROUBLESHOOTING

1. No Raster and No Power (REPAIR METHOD)

No

Red LED “ON”?

I Yes

PROTECT line

Connector PYI ,

No

PROTECTION

Yes

How to check DIAGNOSIS LED’s.

1.Turn OFF power SW.

2.Turn ON again after several seconds, and carefully observe 9 green LED’s

No

turn OFF same time?

D964 (Al 2V)

Check A12V line 1910, Q926, 1001,1102, IYOl, IYO2, HMO1 etc.

D939 (TV5V)

Check TV5V line 1913, Q905 D938, L911 L114, D116 etc.

 

 

 

 

 

1

 

D940(+B)

 

 

 

 

 

 

Check

Find

which

LED’s

is going

to

dark or

OFF

+B 120V line

) E994,

Q777,

(Other LED’s

are

going

to OFF

little

bit later

same time.)

T702,

C701

etc.

I

+

 

 

 

+

 

v

 

v

 

 

 

 

 

 

 

 

1

D946

(TVSV)

D966

(+27V)

D967

(-23V)

D947

(32V)

D977

(22V)

Check

Check

Check

Check

Check

TVSV

line

+27V

line

-23V

line

Audio32V

Audio22V

1912,

Q905

E995,

Q902

E996,

1909

line

line

D928,

L909

IK04,

IK05

IK04,

IK05

E992,

E997

E993,

E998

L922

etc.

etc.

etc.

1401

etc.

1402,

IS11

 

 

 

 

 

 

 

 

etc.

I I

39

Page 39
Image 39
Hitachi 60SBX78B, 50SBX78B service manual Troubleshooting, Yes, Off, Tvsv

60SBX78B, 50SBX78B specifications

The Hitachi 50SBX78B and 60SBX78B are advanced plasma televisions that represent the pinnacle of display technology in their respective categories. These models bring together innovative features, cutting-edge technology, and sleek design, ensuring an immersive viewing experience for consumers.

One of the standout characteristics of the Hitachi 50SBX78B and 60SBX78B is their screen size, with the 50-inch model catering to smaller spaces while the 60-inch offers a more cinematic experience. Both models boast impressive Full HD resolution, delivering a crisp and vibrant picture quality that enhances any viewing experience, whether it be movies, sports, or gaming.

The technology behind these televisions includes Hitachi's proprietary image processing technology, which optimizes picture quality by minimizing noise and enhancing color accuracy. This leads to deeper blacks and brighter whites, ensuring that every scene is rendered with stunning detail. The Plasmavision technology further enhances the black levels and contrast ratios, making images pop off the screen.

In addition to superior image quality, both models come equipped with a variety of connectivity options. Multiple HDMI inputs allow users to easily connect various devices such as gaming consoles, Blu-ray players, and streaming devices. The inclusion of USB ports facilitates easy viewing of photos and videos stored on external drives.

Moreover, Hitachi televisions have integrated audio technologies that enhance the overall viewing experience. The built-in speakers provide clear sound, while the digital audio output allows for connection to external sound systems, giving consumers the flexibility to customize their audio experience.

Energy efficiency is also a notable feature of the Hitachi 50SBX78B and 60SBX78B models. They are designed to consume less power than traditional televisions, aligning with the growing demand for environmentally friendly electronics. This not only reduces electricity bills but also minimizes the carbon footprint.

The sleek and modern design of these plasma televisions makes them an attractive addition to any home décor. The slim bezel offers a larger screen-to-body ratio, maximizing the viewing area while maintaining an elegant appearance.

In summary, the Hitachi 50SBX78B and 60SBX78B offer a compelling package of features, technologies, and characteristics that cater to the needs of modern viewers. With superior image quality, versatile connectivity, and energy efficiency, these televisions are designed to deliver an exceptional home entertainment experience.