Sony KP-41T65C service manual Screen Voltage Adjustment Rough Alignment, Screen G2 Adjustment

Page 31

SECTION 3

SET-UP ADJUSTMENTS

3-1. SCREEN VOLTAGE ADJUSTMENT (ROUGH ALIGNMENT)

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.

3-3. SCREEN (G2) ADJUSTMENT

1.Select VIDEO mode without signals.

2.Connect an oscilloscope to the TP701(KR), TP731(KG) and TP761(KB) of CR board, CG board and CB board.

3.Adjust R, G and B screen voltage to 170 – 173V with screen VR on the focusblock.

R G B

SCREEN

R G B

FOCUS

FOCUS block

Fig. 3-1

3-2. FOCUS LENS ADJUSTMENT

1.Loose the lens screw.

2.Set in service mode.

3.Use VP on the service mode menu to shown only the green color.

4.Press the Commander Menu button and select FEATURES and CONVERGENCE to display the test signal (crosshatch) on the screen.

5.Rotate the green lens and align with the optimal focus point from the test signal.

6.Use RG-RH from the service mode menu to set to green and red.

7.Output the test signal and rotate the red lens to obtain the optimum focus at the point where the red and green spots overlap.

8.Use RG-BH from the service mode menu to set to red and blue.

9.Output the test signal and rotate the blue lens to obtain the optimum focus at the point where the blue and red spots over- lap.

10.Tighten the lens screw.

Test signal

Fig. 3-2

170 173V

pedestal

GND

Fig. 3-3

3-4. FOCUS VR ADJUSTMENT

1.Set in service mode.

2.Use VP on the service mode menu to shown only the green color.

3.Press the Commander Menu button (convergence) and out- put the test signal (crosshach).

4.Rotate the green VR on the FOCUS block and align to ob- tain the optimal focus point.

5.Use RG-RH from the service mode menu to set to green and red.

6.Output the test signal and rotate the red VR to obtain the optimum focus at the point where the red and green spots overlap.

7.Use RG-BH from the service mode menu to set to red and blue.

8.Output the test signal and rotate the blue VR aligning to ob- tain the optimum focus at the point where the blue and green spots overlap.

Scanning line visible.

A

A Minimize both A and B.

LensBB

Fig. 3-4

Fig. 3-5

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Contents Projection TV Video Video in 2 Video 2 Input SpecificationsDiagrams Table of ContentsDisassembly Safety Relatedp AdjustmentsInstalling the projection TV Welcome!PrecautionsHookup Connecting an antennaTo a conventional VCR To a projection TV and VCR Connecting a DBS receiverTo an S video equipped VCR To a projection TVConnecting an audio system Connecting a camcorderConnecting two VCRs for tape editing using Monitor OUT Button color Connecting a Sony Sava series speaker systemGetting to know buttons on the remote control Inserting batteriesErasing or adding channels Setting up the projection TV automaticallyErase and/or add channels Adjusting convergenceSetting cable TV on or off Press Vor vto select Channel ERASE/ADDMuting the sound Presetting channelsSwitching quickly between two channels Watching the TVWatching two programs at one time PIP Swapping the main and window pictures Adjusting the picture VideoFreezing the picture Changing the position of the window picturePress Vor vto select Ntsc STD, MEDIUM, or High and press AdjustingUsing the audio effect button Using audio effectSelecting Stereo or Setting the speaker Bilingual Programs Using the menu to set audio effectSetting daylight Setting the clock Saving time Daylight Setting audio outCustomizing the channel names Setting the timer to turn the projection TV on and offFavorite Channels Blocking out a Setting YourSetting video labels Setting your favorite channelsSetting the manufacturer’s code Setting CaptionOperating video equipment Operating video equipment Operating a cable box or DBS receiverIndex to parts and controls TroubleshootingProjection TV Front Remote control Rear Board Removal Service PositionChassis Assy Removal HA Board Removal KP-53S65C/61S65C HA Board Removal KP-41T65CBeznet Assy Removal KP-53S65C Beznet Assy Removal KP-41T65CScreen Frame Assy Removal KP-61S65C Mirror Cover Assy Removal KP-53S65C Mirror Cover Assy Removal KP-41T65CReflection Mirror Removal KP-61S65C Picture Tube Removal KP-41T65C HIGH-VOLTAGE Cable Installation and RemovalPicture Tube Removal KP-53S65C/61S65C Picture Tube Bracket Assy Removal KP-41T65C Picture Tube Bracket Assy Removal KP-53S65C/61S65C Install a Chassis Assy Setting of Service Stay ASSY. KP-41T65C/53S65CFocus VR Adjustment Screen Voltage Adjustment Rough AlignmentScreen G2 Adjustment Focus Lens AdjustmentPole Magnet Adjustment Deflection Yoke Tilt AdjustmentDefocus Adjustment Blue Display Electrical Adjustment by Remote CommanderMuting Adjust Buttons and IndicatorGH Cent BH 4PIN Mscn Main SUB Contrast Convergence Adjustment GH Cent GH BOW GH Skew GH 4BOW Green Vertical Size Adjustment GV Wave GV 4PIN White Balance Adjustment AGC AdjustmentOperation Check Board HV Regulation Circuit Check and AdjustmentHV Hold Down Circuit Operation Check and Adjustment HV HOLD-DOWN Adjustment+B OVP Confirmation P Position Adjustment PIPH, Pipv BER Display Adjustment DispSUB-HUE and SUB-COLOR Adjustment SHUE, Scol SUB Contrast Adjustment SconP SUB HUE, SUB Color Adjustment IHUE, Icol P SUB Contrast Adjustment PconMemo Block Diagram Section DiagramsComb FILTER,PIP Processor Printed Wiring Boards and Schematic Diagrams Frame Schematic DiagramCircuit Boards Location 13Vp-p 500kHz 8Vp-p H 0Vp-p H 60Vp-p Board WaveformsDiode BoardBoard IC801, 802 PA0053B 2Vp-p H 8Vp-p 6Vp-p H 4Vp-p H 2Vp-p H5Vp-p 4Vp-p 8Vp-p H 7Vp-p HPT Board IC Voltage List PT Board IC5052 SDA9288X-GEG PT Board WaveformsPT Board PT BoardCG Board Waveform CR Board Waveform140Vp-p H 160Vp-p H CB Board IC701 TDA6106Q CB Board WaveformCR Board IC701 TDA6106Q CG Board IC701 TDA6106QZDY/VM STBY5V Board HA BoardCover KP-41T65C Semiconductors66 68 5358 +BVTP 3X12 Cover KP-61S65CChassis KP-41T65C 170Chassis KP-53S65C/61S65C 217 201Picture Tube KP-41T65C 263KP-61S65C Picture Tube KP-53S65C/61S65CSection Electrical Parts List CONNECTOR, Board to Board 20P REF. no Description PT a 101 102 103 104 105 106 107 108 109 110 111 Relay CR CG CB CB HA 115 965-216-01 Accessories and Packing Materials MANUAL, Instruction