Hitachi 60SBX78B, 50SBX78B service manual +2 mm, Twa4, Vertical size adjustment R630

Page 29

(4)Turn the deflection yoke of R or B and set so that the inclination of R or B with respect to the green light is as shown below on the top and bottom sides.

(5)After raster inclination adjustment, fixing screw

of DY should be screwed with 12+2kg-cm torque.

 

 

t?,

+2 mm

 

 

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1

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t2

II-

I

CROSSHATCH (GREEN)

Notes: (1) If internal cross-hatch does not appear after

clearing RAM data, press service switch

again, on POWER/DEFLECTION PWB.

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

2.7Raster position adjustment

Adiustment oreparation

(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)Turn the centering magnets for red, green, and blue to satisfy the condition below. The red and blue horizontal lines should match with green.

twa4

Geometric center of the

Cl t2

NOTES: (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.

2.6Vertical size adjustment (R630)

Adjustment preparation

I:;The set can face east or west.

Input the single cross test signal.

(3)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.

Adiustment procedure

(1)Turn only the green by applying covers to the red and blue lens or shorting the 2 pin TS con- nectors on the red and blue CPT P.W.B.

(2)Count the vertical lines of the DCU cross hatch. If the number of vertical lines is 9, go to step (3). If the number of vertical lines is 8, push “HELP” key and then “5” key on the R/C so the number of vertical lines becomes “9”.

(3)Turn vertical amplitude adjustment VR (R630) so that the distance between the top and bottom horizontal lines is equal to the size shown in the table.

t: Size ma4

60” 8OOk 5mm

50” 65Ok 5mm

Note: (1) If internal cross-hatch does not appear after

clearing RAM data, press service switch

again (on POWER/DEFLECTION PWB).

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

29

Image 29
Contents Projection Color Television ContentsSafety Notice USE Isolation Transformer When Servicing Leakage Current for Appliances and Underwriters Safety PrecautionsDetailing X-radiation Shield TubePage Immediately before handling any semiconductor Servicing PrecautionsUse Solding Iron to Pry Leads Bare Jumper Insulated Jumper WireDetermine the positions Soldering Iron Iron wireTechnical Cautions IPOWER/DEFLECTION PWBDimension 50SBX78B Audio Output PowerAudio Input Stereo Audio OutputTransmitter General InformationCursor Customized Picture and Sound AdjustmentsCOLOR, Tint Brightness Color TintBass IllVCR TV Guide PLUS+Guide Example StepOutside antenna or Cable TV coaxial cable SelectAudio RecallVCR #I 0Set U END of SET UP Remark FBTMake sure the silicon cover is Covering the high voltage outputCPT AdjustmentCRT When Exchanging Adjustable data Others Fixed data be careful not to changeTime Tour at first Power on by Adjustment procedureContrast Half Brightness Minimum Final Assembly AdjustmentSub brightness adjustment White balance adjustmentPoint Repeat for P832 and ROM6 Green, P862 and ROM4 for RedFrontrear MrnCenter Front Rear Front RearTwa4 Vertical size adjustment R630+2 mm +- $$i Horizontal size adjustment R603 Adjustment preparationThis can eliminate the need for a complete Observing PointsConvergence first. Press front panel Magic After JIG Screen SpecificationBefore Digital Convergence Remote Control Convergence point adjustmentThen Press RECALL’ ROM WriteGUIDE+ OSD CRT, cabinet locations Adjustment PointMain Chassis Signal P.W.B SURROUNDP.W.B.SIGNALSUB B. VMIscii ROM8 ROM6 ROM4IXI Power/Deflection P.W.BMain Chassis CPT R G B, Focus Pack, Control P.W.B OoorYes TroubleshootingOFF TvsvNo.~ Voltage at pin 5 Yes E991 blown YesDoes on-screen 1501, 1903, 1001 Normal Abnormal 0517 Q516Q108, Q109, QllO, Q008 Yes NormalU102 Yes Vcc Sv, BP 5v, T3u102 Eception impossible with snow noise YesCl902 Defective SynchronizationPRT G PRT RU101 No SoundNtsc DCU Repair TableTV 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 Symbol Part Replacement Parts ListIooopfkb 50V Tape ProductComponents IEL Symbol PartTape 5OVChip Symbol Product ServiceCSE3 Symbol Part Rmpgogd DescriptionMTZJ-I LightTuner Unit Part Symbol5MA Ukdg Circuits1OUH Part DescriptionIoouh CoilReceiver Through Improper Servicing QAI 1KJ Tape ROA2 ROP7 Replacement Parts List With a n Have special OOK-JB SRD1/2P-B SRD1/2P-SIOK-JB OK-JB1KJ ChipMINI-CHIP RAC2IOK-JQ OHMRkio RgiiRlio Symbol Part NO.NO RY50 Symbol EF05951

60SBX78B, 50SBX78B specifications

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