Hitachi 50SBX78B, 60SBX78B service manual Tube, Detailing X-radiation Shield

Page 4

X-radiation

 

-

 

TUBE:

The

primary

source

of X-

h. X-radiation

Shield

-

 

 

 

 

 

 

 

 

radiation

in

this

receiver

is the

picture

tube.

The

tube

1.

This

receiver

is

provided

with

X-ray

shield

 

plates

utilized

for

the

above

mentioned

 

function

 

in

this

 

for

protection

against

X-radiation.

Do

not

remove

chassis

is

specially

constructed

to

limit

X-radiation

 

X-ray

shield

plates

A,

B,

C, or

D

shown

in

Fig. 1

emissions.

 

 

 

 

 

 

 

 

 

 

 

 

 

unnecessarily,

 

when

 

troubleshooting

 

and/or

For continued

 

X-radiation

protection,

the

replacement

 

making

test

measurements.

 

 

 

 

 

 

tube

must be

the

same

type

as

the

original,

Hitachi

2.

To

prevent

X-radiation,

 

after

 

replacement

of

approved

type.

 

 

 

 

 

 

 

 

 

 

 

 

picture

tube

and

lens,

confirm

these

components

When

troubleshooting

and

making

test

measure-

 

to be

fixed

correctly

to bracket

and

cabinet,

and

ments

in

a

receiver

with

a problem

of excessive

 

high

 

not

to

be taken

off

easily.

 

 

 

 

 

 

voltage,

avoid

being

unnecessarily

close to the picture

 

 

 

 

 

 

 

 

 

 

 

 

 

 

tube and the high voltage component.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Do not operate the chassis longer than is necessary

 

 

 

 

 

 

 

 

 

 

 

 

 

 

to locate the cause of excessive voltage.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R-Lens

G-Lens

B-Lens

Shield Plate A

Shield

Fig. 1. Detailing X-radiation Shield

4

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Image 4
Page 3 Page 5
Contents Contents Projection Color TelevisionSafety Notice USE Isolation Transformer When Servicing Safety Precautions Leakage Current for Appliances and UnderwritersTube Detailing X-radiation ShieldPage Servicing Precautions Immediately before handling any semiconductorUse Solding Iron to Pry Leads Insulated Jumper Wire Bare JumperSoldering Iron Iron wire Determine the positionsIPOWER/DEFLECTION PWB Technical CautionsAudio Output Power Dimension 50SBX78BAudio Input Stereo Audio OutputGeneral Information TransmitterCustomized Picture and Sound Adjustments CursorCOLOR, Tint Brightness Color TintIll BassGuide TV Guide PLUS+VCR Step ExampleSelect Outside antenna or Cable TV coaxial cableRecall AudioVCR #I 0Set U END of SET UP FBT RemarkMake sure the silicon cover is Covering the high voltage outputCRT AdjustmentCPT Adjustable data Others Fixed data be careful not to change When ExchangingTime Tour at first Power on by Adjustment procedureFinal Assembly Adjustment Contrast Half Brightness MinimumWhite balance adjustment Sub brightness adjustmentRepeat for P832 and ROM6 Green, P862 and ROM4 for Red PointFrontrear MrnFront Rear Center Front Rear+2 mm Vertical size adjustment R630Twa4 Horizontal size adjustment R603 Adjustment preparation +- $$iConvergence first. Press front panel Magic Observing PointsThis can eliminate the need for a complete Before JIG Screen SpecificationAfter Convergence point adjustment Digital Convergence Remote ControlThen Press RECALL’ ROM WriteGUIDE+ OSD Adjustment Point CRT, cabinet locationsSURROUNDP.W.B.SIGNALSUB B. VM Main Chassis Signal P.W.BIscii ROM8 ROM6 ROM4Main Chassis Power/Deflection P.W.BIXI Ooor CPT R G B, Focus Pack, Control P.W.BTroubleshooting YesOFF TvsvYes No.~ Voltage at pin 5 Yes E991 blownNormal Abnormal 0517 Q516 Does on-screen 1501, 1903, 1001Q108, Q109, QllO, Q008 Yes NormalEception impossible with snow noise Yes U102 Yes Vcc Sv, BP 5v, T3u102Defective Synchronization Cl902PRT R PRT GNo Sound U101DCU Repair Table NtscTV ON/OFF Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Exploded MEW Replacement Parts List Symbol PartProduct Iooopfkb 50V TapeComponents Symbol Part IELTape 5OVChip Product Service SymbolCSE3 Symbol Part Description RmpgogdMTZJ-I LightPart Symbol Tuner Unit5MA Ukdg CircuitsPart Description 1OUHIoouh CoilReceiver Through Improper Servicing QAI 1KJ Tape ROA2 ROP7 Replacement Parts List With a n Have special OOK-JB SRD1/2P-S SRD1/2P-BIOK-JB OK-JBChip 1KJMINI-CHIP RAC2OHM IOK-JQRgii RkioRlio Symbol Part NO.NO RY50 Symbol EF05951

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.
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