Hitachi 50SBX78B, 60SBX78B +- $$i, Horizontal size adjustment R603 Adjustment preparation

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2.9Horizontal size adjustment (R603)

Adjustment preparation

(1)The set’can face east or west. Input the single cross test signal.

I;; Set video conditions to factory reset.

(4)The lens focus adjustment should have been completed.

(5)The electric focus should have been coarse adjusted.

(6)The digital convergence RAM should be cleared (uncorrected state). With the TV set off, press and hold the service switch located on the POWER/DEFLECTION PWB and then press the power button.

(7)Start adjustment 20 minutes or more after TV is turned on.

Adjustment procedure

(1)Project only green, the same as Vertical size adjustment.

(2)Turn horizontal amplitude adjustment VR (R603) so distance between the left and right vertical lines is equal to the size shown in the table.

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Note: (1) If internal cross-hatch does not appear after clearing RAM data, press service switch again.

(2)To restore old RAM data, turn TV off and on.

2.10Beam alignment

Adjustment preparation

(1)Adjust at least 30 minutes after turning on power switch.

(2)Raster inclination, centering, horizontal and vertical amplitudes and optical focus adjustment should be completed.

(3)Set video conditions to factory reset.

(4)Receive cross-hatch signals. (Use of internal cross-hatch signals allowed.)

(5)Short-circuit all metal parts (metal fittings, centering magnet) installed on the projection tubes to GND’s of the projection tubes.

Since metal Darts are charaed with electricitv, shocks mav be caused if thev are not short circuited.

Adiustment procedure

(1)Green (G) tube beam alignment adjustment. Short-circuit 2P subminiature connector plug pins of Red (R) and Blue (B) on the CPT boards and project only Green (G) tube.

(2)Put Green (G) tube beam alignment magnet to the cancel state as shown below.

(3)Turn the Green (G) static focus (Focus Pack) counterclockwise all the way and make sure of position of cross-hatch center on screen. (Halo state.)

(4)Turn the Green (G) static focus (Focus Pack) clockwise all the way. (Blooming state.)

(5)Turn two magnets forming alignment magnet in any desired direction and move cross-hatch center to position found in (3).

(6)If image position does not shift when Green (G) static focus (Focus Pack) is turned. Green (G) beam alignment has been completed.

(7)If image position shifts when Green (G) static focus (Focus Pack) is turned, repeat (2)-(6).

(8)Conduct beam alignment for red (R) focus: Focus Pack UFPK Blue (B) focus: Focus Pack UFPK.

(9)Upon completion of adjustment, fix beam alignment magnets with white paint.

2.11Beam shape adjustment

Adjustment preparation

(1) The beam alignment should have been completed.

(2)The raster inclination, centering, horizontal/ vertical amplitude and optical focus adjustments should have been completed.

(3)Set video conditions to factory reset.

(4)Input the dot signal.

Adjustment orocedure

(1)Green PRT beam shape adjustment. Short- circuit 2P sub-mini connectors on Red and Blue CPT PW.B.s to project only the Green beam.

(2)Turn the green static focus fully clockwise. (Blooming.)

(3)Make the dot at the screen center a true circle using the 4-pole magnet as shown below.

(4)Also adjust the Red and Blue PRT beam shapes according to the steps (1) to (3).

(5)After the adjustment has been completed, return R, G and B static VRs to the just focus point.

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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 Input Audio Output PowerDimension 50SBX78B Stereo Audio OutputGeneral Information TransmitterCOLOR, Tint Customized Picture and Sound AdjustmentsCursor Brightness Color TintIll BassTV Guide PLUS+ GuideVCR Step ExampleSelect Outside antenna or Cable TV coaxial cableRecall AudioVCR #I 0Set U END of SET UP Make sure the silicon cover is FBTRemark Covering the high voltage outputAdjustment CRTCPT Time Tour at first Power on by Adjustable data Others Fixed data be careful not to changeWhen Exchanging Adjustment procedureFinal Assembly Adjustment Contrast Half Brightness MinimumWhite balance adjustment Sub brightness adjustmentFrontrear Repeat for P832 and ROM6 Green, P862 and ROM4 for RedPoint MrnFront Rear Center Front RearVertical size adjustment R630 +2 mmTwa4 Horizontal size adjustment R603 Adjustment preparation +- $$iObserving Points Convergence first. Press front panel MagicThis can eliminate the need for a complete JIG Screen Specification BeforeAfter Then Press RECALL’ Convergence point adjustmentDigital Convergence Remote Control ROM WriteGUIDE+ OSD Adjustment Point CRT, cabinet locationsIscii SURROUNDP.W.B.SIGNALSUB B. VMMain Chassis Signal P.W.B ROM8 ROM6 ROM4Power/Deflection P.W.B Main ChassisIXI Ooor CPT R G B, Focus Pack, Control P.W.BOFF TroubleshootingYes TvsvYes No.~ Voltage at pin 5 Yes E991 blownQ108, Q109, QllO, Q008 Normal Abnormal 0517 Q516Does on-screen 1501, 1903, 1001 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 Tape Symbol PartIEL 5OVChip Product Service SymbolCSE3 Symbol Part MTZJ-I DescriptionRmpgogd Light5MA Ukdg Part SymbolTuner Unit CircuitsIoouh Part Description1OUH CoilReceiver Through Improper Servicing QAI 1KJ Tape ROA2 ROP7 Replacement Parts List With a n Have special OOK-JB IOK-JB SRD1/2P-SSRD1/2P-B OK-JBMINI-CHIP Chip1KJ 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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