Sony KP-53SV75A, KP-43T75A service manual Section, SET-UP Adjustments

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KP-43T75A/53SV75A

SECTION 3

RM-Y906 RM-Y906

 

 

SET-UP ADJUSTMENTS

3-1. SCREEN VOLTAGE ADJUSTMENT (COARSE ADJUSTMENT)

1.Receive the Monoscope signal.

2.Set 50% BRIGHTNESS and minimum PICTURE.

3.Turn the red VR on the FOCUS block all the way to the left and then gradually turn it to the right until the point where you can see the retrace line.

4.Next gradually turn it to the left to the position where the retrace line disappears.

R G B

SCREEN

R G B

FOCUS

Fig. 3-1

FOCUS block

3-2. SCREEN (G2) ADJUSTMENT (FINE ADJUSTMENT)

Fine Mode is recommended to set screen controls to their optimal condition. It is necessary to build the simple jig, illustrated below, using 3-watt resistors. Please note, that if the proper voltage is not obtained with their listed values, resistors, then please increase or decrease one of the values in the resistor network to obtain the correct voltage.

1.Select VIDEO1 mode without signals.

2.Connect G2 JIG.

3.SW on JIG.

4.Connect an oscilloscope to the TP701(KR), TP732(KG) and TP761(KB) of CR board, CG board and CB board.

5.Adjust R, G and B screen voltage to 168-172V with screen VR on the Focus block.

K

G2 JIG

SW

2.2k 4.7k 5.6k 5.6k

200V

GND

the mode Cover the both green and red picture lenses with the lens caps is aligned the same as was done for green.

Note: Instead of items 3 and 6, you can cut off the unnecessary color beams by controlling the service mode VPTR 17 RON, 18 GON, and 19 BON.

 

4-pole magnet

2-pole magnet

Deflection yoke

Fig. 3-3

Anode cap

3-4. FOCUS LENS ADJUSTMENT

In this adjustment, use the remote commander in the service mode.

For details of the usage of the service mode and the remote commander, please refer the item 3-9. ELECTRICAL ADJUSTMENT BY REMOTE COMMANDER.

1.Loosen the lens screw.

2.Set to the service mode.

3.Receive the all-white signal.

4.Cover the both red and blue picture lenses with the lens caps to show only the green color.

5.Set to PJE, and press 6 to display the test signal (crosshatch)“ on the screen.

6.Turn the green lens to adjust to the optimum focus point with the test signal.

7.Tighten the lens screw.

8.Cover the both green and blue picture lenses with the lens caps to show only the red color.

9.Set to PJE, and press 6 to display the test signal (crosshatch)“ on the screen.

10.Adjust red CRT lens just the same as green.

11.Cover the both green and red picture lenses with the lens caps to show only the blue color.

170 ± 2V

pedestal level

GND

Fig. 3-2

3-3. DEFLECTION YOKE TILT ADJUSTMENT

1.Receive the Monoscope signal.

2.Set in service mode.

3.Cover the both red and blue picture lenses with the lens caps to show only the green color.

4.Loosen the deflection yoke set screw and align the tilt of the Deflection Yoke so that the bars at the center of the monoscope pattern are horizontal.

5.After aligning the deflection yoke, fasten it securely to the funnel-shaped portion (neck) of the CRT.

6.The tilt of the deflection yoke for red is aligned in the mode Cover the both green and blue picture lenses with the lens caps and the tilt of the deflection yoke for blue is aligned with in

Test signal

Fig. 3-4

 

12.Set to PJE, and press 6 to display the test signal (crosshatch)“ on the screen.

13.Adjust blue CRT lens just the same as green.

14.After adjusting the items 3-5. Focus VR Adjustment, 3-6. 2- Pole Magnet Adjustment and 3-7. 4-Pole Magnet Adjustment, adjust again to the optimum focus point.

*: Every time you press 6, the test signal changes to “crosshatch+video signal” - “dots+video signal” - “crosshach(black)” - “dots(black)” - off.

Note: Instead of items 4, 8 and 11, you can cut off the unnecessary color beams by controlling the service mode VPTR 17 RON, 18 GON, and 19 BON.

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Contents Color Rear Video Projector Specifications KP-43T75A/53SV75ABlinking count display of TIMER/STAVDBY indicator Self Diagnosis FunctionSummary of Self-Diagnosis Function Diagnosis Items and Prediction of Malfunction LocationSelf-diagnosis screen displays Self-Diagnosis Screen DisplaySelf-diagnosis function operation Self-diagnosis block diagramOVP Detect Table of Contents Circuit AdjustmentsDisassembly SET-UP AdjustmentsRemote Control Section GeneralCarrying Your Projection TV Installing the Projection TV Connector Types Making ConnectionsConnecting a VCR and projection TV to a cable box Connecting a cable TV system/ antenna to a VCRConnecting a camcorder Connecting two VCRs for tape editing Connecting a DVD Player Upper illustrationUsing the Remote Control Setting Up the Projection TV AutomaticallyConnecting an audio system Upper illustration Inserting the batteriesAdjusting the Convergence Automatically Flash Focus To perform Auto SET UP againWatching the TV Watching Two Programs at One Time PIP Learning Menu Selection To exit from the menus at any timeUsing the Video Menu Using the Audio MenuTo restore the factory settings To select the Video menuUsing the Reloj Menu To select the Reloj menuCh Using the Ajustes de canal Menu To select the Ajustes de canal ch menuSetting and Selecting Canal favorito Setting Canal favorito manuallyUsing Canal favorito Changing Canal favorito choicesUsing the Ajustes Menu To select the Ajustes menuSetting the Manufacturers Code To operate the cable box Manufacturer code numbers cable boxTo operate the projection TV No color Section Disassembly Rear Board Removal Service PositionHA Board and HB Board Removal Chassis Assy Removal KP-53SV75AHA, HB and FB Board Removal Mirror Cover Removal KP-43T75ARemoval A, G and FA Boards Removal HIGH-VOLTAGE Cable InstallationPicture Tube Removal SET-UP Adjustments SectionFocus VR Adjustment Pole Magnet Adjustment GREEN,REDPole Magnet Adjustment Defocus Adjustment BlueAdjusting Buttons and Indicator Electrical Adjustment by Remote CommanderData Service Mode List Adjustment Data Standard Number RangeAdjustment Data Standard Number KP- RMDAC D/A Converter CCD Closed Caption Decoder Registration Adjustment PJE Setup for AdjustmentGreen Registration Adjustment Green CenterBlue Registration Adjustment RED Registration AdjustmentFinal Check Auto Registration Error Code List Error Code ListSection Safety Related Adjustments +B OVP Confirmation Section Circuit Adjustments TV Input SUB Contrast Adjustment VPTR-GDRVTV Input SUB-HUE and SUB-COLOR Adjustment VPTR-SHUE, Scol PIP SUB Contrast Adjustment SC-SYDRPIP Position Adjustment PI-PIPH, PIPV, PPH5, PPV5 BAR Display Position Adjustment OP-DISPText Position Adjustment CCD-CCHP Section Diagrams Block DiagramLine Video Reset Peak HoldBuff IC805 PJED-CPUCRR Drive To aPower Supply G H/V OUT Frame Schematic Diagram Printed Wiring Boards and Schematic DiagramsCircuit Boards Location Micro Inductor3 Board IC406 TDA7265 3 Board Waveforms3 Board IC1011 CXA2079Q 3 Board IC807, 815, 816 ∝ PD6376GS-E2 BV DAC? a 2/3 board Board 3 Board IC1902 CXA2019AQ-T43 Board IC1903 BU4053BCF-T2 3 Board IC1904 CXA1315M-T4Board IC654 DM-58 Board WaveformsBoard IC651 ∝ PC393C CG CR CB board CB Board Waveform CR Board Waveform CB BoardCG Board Waveforms CG BoardHA Board HC Board Function KeysHB Board FB Power Switch FA Board FB BoardSemiconductors NJM7805FAD1NL20U Section Exploded Views Cover KP-43T75ACover KP-53SV75A REF. NO. Part no Description Remark REF. no152 113 115 Chassis KP-43T75AChassis KP-53SV75A 212 Picture TubeResistors Section Electrical Parts ListCapacitors PF ∝∝ F 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 HC HA HB S 125 965-413-01