Sony KP-65WS500, KP-57WS500, KP-51WS500 User Manual

SERVICE MANUAL

Self Diagnosis

Supported model

MODEL NAME REMOTE COMMANDER DESTINATION CHASSIS NO.

RA-6

CHASSIS

KP-51WS500

KP-57WS500

KP-65WS500

RM-Y909 US/CND SCC-P65HA

RM-Y909 US/CND SCC-P65JA

RM-Y909 US/CND SCC-P65KA

9-965-932-06

KP-65WS500 RM-Y909

COLOR REAR VIDEO PROJECTOR

KP-51WS500/57WS500/65WS500

SECTION TITLE PAGE SECTION TITLE PAGE

SpeciÞ cations ...................................................................... 4

Warnings and Cautions ....................................................... 5

Safety Check-Out ................................................................ 6

Self-Diagnostic Function...................................................... 7

1. Disassembly

1-1. Rear Board Removal........................................................... 10

1-2. Chassis Assembly Removal ................................................ 10

1-3. Service Position................................................................... 10

1-4. H2 Board Removal .............................................................. 11

1-5. H1 Board Removal .............................................................. 11

1-6. H3 Board Removal .............................................................. 11

1-7. Mirror Cover Removal ......................................................... 12

1-8. Beznet Assembly Removal.................................................. 12

1-9. S Board Removal ................................................................ 12

1-10. AD Board and B Board Removal ......................................... 12

1-11. G Board Removal ................................................................ 13

1-12. Terminal Board, A Board, D Board,

U Board, and UD Board Removal ....................................... 13

1-13. Picture Tube Removal ......................................................... 14

1-14. High-Voltage Cable Installation and Removal .....................14

2. Set-up Adjustments

2-1. Screen Voltage Adjustment (Coarse Adjustment)................ 15

2-2. Screen (G2) Voltage Adjustment (Fine Adjustment)............ 15

2-3. Deß ection Yoke Tilt Adjustment ........................................... 15

2-4. Focus Lens Adjustment ....................................................... 16

2-5. Focus VR Adjustment.......................................................... 16

2-6. 2-Pole Magnet and Centering Magnet Adjustment.............. 17

2-7. Centering Magnet Adjustment ............................................. 17

2-8. 4-Pole Magnet Adjustment .................................................. 17

2-9. Blue Defocus Adjustment .................................................... 17

2-10. Electrical Adjustments

By Remote Commander ...................................................... 18

2-11. Service Data Lists................................................................ 19

2-12. Registration Adjustment....................................................... 38

2-13. PJE Adjustment (Sub Deß ection Adjustment)...................... 40

2-14. Auto Convergence Offsets .................................................. 42

2-15. Auto Registration Error Codes............................................. 43

3. Safety Related Adjustments

(D Board)

3-1. HV Regulation Circuit Check and Adjustment ..................... 45

3-2. HV Hold Down Circuit Operation Check and Adjustment.... 45

(G Board)

3-3. +B Max Voltage ConÞ rmation.............................................. 46

3-4. +B OVP ConÞ rmation .......................................................... 46

4. Circuit Adjustments

4-1. Blue Offset Adjustment........................................................ 47

4-2. P&P Sub Contrast Adjustment

(Video) (SCON) ................................................................... 47

4-3. P&P Sub Contrast Adjustment

(RF) (SCON)........................................................................ 47

4-4. P&P Sub-Hue and Sub-Color Adjustment

(Video) (SHUE, SCOL) ........................................................ 47

4-5. P&P Sub-Hue and Sub-Color Adjustment

(RF) (SHUE, SCOL) ............................................................ 48

5. Diagrams

5-1. Circuit Boards Location ....................................................... 49

5-2. Printed Wiring Boards

and Schematic Diagrams Information ................................. 49

5-3. Block Diagrams ................................................................... 51

5-4. Schematics and Supporting Information.............................. 54

V Board................................................................................ 54

CR Board............................................................................. 55

CG Board............................................................................. 56

CB Board ............................................................................. 57

UD Board............................................................................. 58

D Board ............................................................................... 60

B Board................................................................................ 63

AD Board ............................................................................. 66

A Board................................................................................ 67

U Board ............................................................................... 74

G Board ............................................................................... 76

H2 Board ............................................................................. 77

H1 Board ............................................................................. 78

H3 Board ............................................................................. 79

S Board................................................................................ 79

5-5. IC Block Diagrams............................................................... 80

5-6. Semiconductors................................................................... 84

6. Exploded Views

6-1. Cover (KP-51WS500/57WS500 Only)................................. 85

6-2. Cover (KP-65WS500 Only) ................................................. 86

6-3. Chassis................................................................................ 87

6-4. Picture Tube ....................................................................... 88

7. Electrical Parts List ........................................................................ 89

— 3 —

SPECIFICATIONS

KP-51WS500/57WS500/65WS500

Power Requirements

Power Consumption (W)

In Use (Max) In Standby

Inputs/Outputs

120V AC, 60Hz

230W Under 1 W

DVI-HDTV

1 terminal, 3.3V T.M.D.S., 50 ohms The DVI-HDTV input terminal is compliant with the EIA-861 standard and is not intended for use with personal computers.

Video (IN)

4 total (1 on front panel) 1Vp-p, 75ohms unbalanced, sync negative

S Video (IN)

3 total (1 on front panel) Y: 1Vp-p, 75ohms unbalanced, sync negative C: 0.286Vp-p (Burst signal), 75ohms

Audio (IN)

6 total (1 on front panel) 500 mVrms (100% modulation) Impedance:47 kilo ohms

Audio (VAR/RIX)

1 total 500 mVrms at the maximum volume setting (Variable) 500 mVrms (Fixed) Impedance (Output):1 kilo ohm

TV Out

1 total Video: 1 Vp-p 75 ohms unbalanced, Sync negative Audio: 500 m Vrms (100% modulation) Impedance (output): 1 kilo ohms

Control S (IN/OUT)

1 total Minijacks

Component Video Input 2 (Y, PB, PR)

Y: 1.0 Vp-p, 75 ohms unbalanced, sync negative PB: 0.7 Vp-p, 75 ohms; PR: 0.7 Vp-p, 75 ohms

RF Inputs

2 total

KP-51WS500 KP-57WS500 KP-65WS500

Speaker Output (W)

20W x 2

Dimensions (W x H x D)

mm in

1194 x 1310 x 630 mm 1326 x 1377 x 690 mm 1542 x 1452 x 735 mm

1/8

5/8

x 51

x 24

7/8

in 52

Mass kg

76 kg 89 kg 125 kg

lbs

167 lbs 9 oz 196 lbs 3 oz 275 lbs 8 oz

Projection System

3 picture tubes, 3 lenses, horizontal in-line system

Picture Tube

7-inch high-brightness monochrome tubes (6.3 raster size), with optical coupling and liquid cooling system.

Projection Lenses

High performance, large diameter hybrid lens F1.1

Antenna

75 ohm external terminal for VHF/UHF

Television System

NTSC, American TV Standard

1/4

Converter

1 total

1/4

x 54

1/4

x 27

in 61 x 57 x 29 in

Screen Size (measured diagonally)

51 inches (KP-51WS500) 57 inches (KP-57WS500) 65 inches (KP-65WS500)

Supplied Accessories

Remote Control RM-Y909 Batteries (2) size AA (R6)

Optional Accessories

A/V Cable (VMC-810/820/830 HG) Audio Cable (RKC-515HG) Component Video Cable (VMC-10/30 HG) Control S Cable (RK-G69HG) AV Receiver (STR-V555ES or equivalent)

Channel Coverage

VHF: 2-13/ VHF: 14-69/ CATV: 1-125

Design and speciﬁ cations are subject to change without notice.

— 4 —

KP-51WS500/57WS500/65WS500

WARNINGS AND CAUTIONS

CAUTION

Short circuit the anode of the picture tube and the anode cap to the metal chassis, CRT shield, or carbon painted on the CRT, after removing the anode.

WARNING!!

An isolation transformer should be used during any service to avoid possible shock hazard, because of live chassis. The chassis of this receiver is directly connected to the ac power line.

! SAFETY-RELATED COMPONENT WARNING!!

Components identiﬁ ed by shading and ! mark on the schematic diagrams, exploded views, and in the parts list are critical for safe operation. Replace these components with Sony parts whose part numbers appear as shown in this manual or in supplements published by Sony. Circuit adjustments that are critical for safe operation are identiﬁ ed in this manual. Follow these procedures whenever critical components are replaced or improper operation is suspected.

ATTENTION!!

Apres avoir deconnecte le cap de l’anode, court-circuiter l’anode du tube cathodique et celui de l’anode du cap au chassis metallique de l’appareil, ou la couche de carbone peinte sur le tube cathodique ou au blindage du tube cathodique.

Aﬁ n d’eviter tout risque d’electrocution provenant d’un chássis sous tension, un transformateur d’isolement doit etre utilisé lors de tout dépannage. Le chássis de ce récepteur est directement raccordé à l’alimentation du secteur.

! ATTENTION AUX COMPOSANTS RELATIFS A LA SECURITE!!

Les composants identiﬁ es par une trame et par une marque ! sur les schemas de principe, les vues explosees et les listes de pieces sont d’une importance critique pour la securite du fonctionnement. Ne les remplacer que par des composants Sony dont le numero de piece est indique dans le present manuel ou dans des supplements publies par Sony. Les reglages de circuit dont l’importance est critique pour la securite du fonctionnement sont identiﬁ es dans le present manuel. Suivre ces procedures lors de chaque remplacement de composants critiques, ou lorsqu’un mauvais fonctionnement suspecte.

— 5 —

SAFETY CHECK-OUT

KP-51WS500/57WS500/65WS500

After correcting the original service problem, perform the following safety checks before releasing the set to the customer:

1. Check the area of your repair for unsoldered or poorly soldered connections. Check the entire board surface for solder splashes and bridges.

2. Check the interboard wiring to ensure that no wires are “pinched” or touching high-wattage resistors.

3. Check that all control knobs, shields, covers, ground straps, and mounting hardware have been replaced. Be absolutely certain that you have replaced all the insulators.

4. Look for unauthorized replacement parts, particularly transistors, that were installed during a previous repair. Point them out to the customer and recommend their replacement.

5. Look for parts which, though functioning, show obvious signs of deterioration. Point them out to the customer and recommend their replacement.

6. Check the line cords for cracks and abrasion. Recommend the replacement of any such line cord to the customer.

7. Check the B+ and HV to see if they are speciﬁ ed values. Make sure your instruments are accurate; be suspicious of your HV meter if sets always have low HV.

8. Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other exposed metal parts for AC leakage. Check leakage as described below.

Leakage Test

The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500 microamperes). Leakage current can be measured by any one of three methods.

1. A commercial leakage tester, such as the Simpson 229 or RCA WT-540A. Follow the manufacturers’ instructions to use these instructions.

2. A battery-operated AC milliammeter. The Data Precision 245 digital multimeter is suitable for this job.

3. Measuring the voltage drop across a resistor by means of a VOM or battery-operated AC voltmeter. The “limit” indication is 0.75 V, so analog meters must have an accurate low voltage scale. The Simpson’s 250 and Sanwa SH-63TRD are examples of passive VOMs that are suitable. Nearly all battery-operated digital multimeters that have a 2 VAC range are suitable (see Figure A).

How to Find a Good Earth Ground

A cold-water pipe is a guaranteed earth ground; the cover-plate retaining screw on most AC outlet boxes is also at earth ground. If the retaining screw is to be used as your earth ground, verify that it is at ground by measuring the resistance between it and a cold-water pipe with an ohmmeter. The reading should be zero ohms.

If a cold-water pipe is not accessible, connect a 60- to 100-watt troublelight (not a neon lamp) between the hot side of the receptacle and the retaining screw. Try both slots, if necessary, to locate the hot side on the line; the lamp should light at normal brilliance if the screw is at ground potential (see Figure B).

To Exposed Metal Parts on Set

Trouble Light

Ohmmeter

.15 µF

kΩ

1.5

Earth Ground

AC Outlet Box

AC V oltmeter (0.75 V)

Figure A. Using an AC voltmeter to check AC leakage. Figure B. Checking for earth ground.

— 6 —

Cold-water Pip

KP-51WS500/57WS500/65WS500

SELF-DIAGNOSTIC FUNCTION

Self Diagnosis

Supported model

The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY/TIMER LED will automatically begin to ﬂ ash. The number of times the LED ﬂ ashes translates to a probable source of the problem. A deﬁ nition of the STANDBY/TIMER LED ﬂ ash indicators is listed in the instruction manual for the user’s knowledge and reference. If an error symptom cannot be reproduced, the Remote Commander can be used to review the failure occurrence data stored in memory to reveal past problems and how often these problems occur.

Diagnostic Test Indicators

When an error occurs, the STANDBY/TIMER LED will ﬂ ash a set number of times to indicate the possible cause of the problem. If there is more than one error, the LED will identify the ﬁ rst of the problem areas.

Results for all of the following diagnostic items are displayed on screen. If the screen displays a “0”, no error has occurred.

No. of times

Diagnostic Item

Power does not turn on Does not light

+B overcurrent (OCP)* 2 times

+B overvoltage (OVP) 3 times

Vertical deflection stopped 4 times

White Balance Failure (Not Balanced)

Low B OCP/OVP (Overcurrent/Overvoltage) ***

Horizontal deflection stopped 7 times High-voltage error 8 times Audio error 9 times

STAND BY /

TIMER

lamp flashes

5times

6times

Probable Cause Location Detected Symptoms

• Power cord is not plugged in.

• Fuse is burned out (F6001). (G Board)

• H.OUT (Q8024) is shorted. (D Board)

• +B PWM (Q8035, Q8038) is shorted.

(D Board)

• IC501 is faulty. (G Board)

• IC5002 is faulty. (G Board)

±15V is not supplied. (D Board)

•

• IC8003 is faulty. (A Board)

• Video OUT (IC7101, IC7201, IC7301)

is faulty. (CR, CG, CB Boards)

• CRT drive (IC309) is faulty. (A Board)

• Screen (G2) is improperly adjusted. **

• +5 line is overloaded. (A, B Boards)

• +5 line is shorted. (A, B Boards)

• Q8035, Q8038 is shorted. (D Board)

• T8005 is faulty. (D Board)

•±19V line is shorted. (A, B Boards)

• Power does not come on.

• No power is supplied to the TV.

• AC Power supply is faulty.

• Power does not come on.

• Load on power line shorted.

• Has entered standby mode.

• Has entered standby state after

horizontal raster.

• Vertical deflection pulse is

stopped.

• Power line is shorted, or

power supply is stopped.

• No raster is generated.

• CRT Cathode current detection

reference pulse output is small.

• No picture

• No sound

• IC708 is faulty. (A Board)

• PS701 or PS702 is opened.

(A Board)

* If a +B overcurrent is detected, stoppage of the vertical deflection is detected simultaneously. The symptom that is diagnosed

first by the microcontroller is displayed on the screen.

** Refer to Screen (G2) Adjustments in Section 2-2 of this manual

*** If TIMER or STAND BY indicator blinks six (6) times, unplug the unit and wait 10 minutes before performing the adjustment.

— 7 —

KP-51WS500/57WS500/65WS500

Display of Standby/Timer LED Flash Count

* One blink is not used for self-diagnosis.

< FRONT PANEL >

• EXAMPLE

• +B overcurrent 2 times

• +B overvoltage 3 times

• Vertical deflection stop 4 times

Lamp ON : 0.3 seconds

Lamp OFF : 0.3 seconds

TIMER/STAND BY indicator

Release of TIMER STAND BY indicator blinking

The TIMER/STANDBY indicator blinking display is released by turning OFF the power switch on the TV main unit or removing the plug from the power.

Lamp OFF :

3.0 seconds

Self-Diagnosis Screen Displays

In cases of malfunctions where it is not possible to determine the symptom such as when the power goes off occasionally or when the screen disappears occasionally, there is a screen display on whether the malfunction occurred or not in the past (and whether the detection circuit operated or not) in order to allow conﬁ rmation.

Screen Display Method

Quickly press the remote command button in the following order from the standby state.

Display

Channel

Sound Volume*

*Note that this differs from entering the service mode (sound volume

SELF DIAGNOSIS

2 : +B OCP N/A 3 : +B OVP N/A 4 : V STOP 0 5 : AKB 1 10 : WDT 24

Numeral "0" means that no fault was detected.

Numeral "1" means a fault was detected one time or more

Power ON

)

Self-Diagnosis Screen Display

The results display is not automatically cleared. In case of repairs and after repairs, check the self-diagnosis screen and be sure to return the results display to “ 0 ”.

If the results display is not returned to “ 0 ” it will not be possible to judge a new malfunction after completing repairs.

Method of Clearing Results Display

1. Power off (Set to the standby mode.)

Display

3. Channel

Channel

ENTER

Sound Volume

(Test reset = Factory preset condition)

Power ON (Service Mode)

Method of Ending Self Diagnosis Screen

When ending the self-diagnosis screen completely, turn the power switch OFF on the remote commander or the main unit.

— 8 —

Self-Diagnosis Function Operation

Q8001

Q378

OCP Low B and +B line detect DET SHORT, and shut-down POWER ON RELAY. Reset by turning power on/off. In case of +B is loaded approx. 1.5A or more, microcomputer detects it via

IC5005.

KP-51WS500/57WS500/65WS500

OVP In case of +B becomes approx. 150V or more, POWER ON RELAY shuts down and microcomputer detects it via Reset by turning power on/off just the same as OCP.

Low B Occurs when set +5V is out

V Stop In the case of the V Drive disappearing, causes the LED to blink.

AKB IK detection. Makes LED blink when microcomputer doesn’t detect IK, returns of

H Stop In case H DRIVE disappears, Microcomputer receives H Stop data from

HV Stop In case HV becomes 33kV or more, The microcomputer makes the LED blink.

Audio In case of DC component overlaps the output of Audio Amp., the microcomputer detects it and shuts-down POWER ON RELAY. The microcomputer makes the LED blink.

Self-Diagnosis Block Diagram

Q378 detects it and shuts-down POWER ON RELAY.

Q8001 detects it and shuts-down the POWER ON RELAY. The microcomputer detects it and

IC309 (CXA2150AQ) 20 seconds or more.

Q378 and makes the LED blink.

IC8006 detects it and shuts-down POWER ON RELAY.

D9101

TIMER/STANDBY

R765

5. AKB

31 28 29 30

BUS

25 26

IC309 CXA2150AQ Y/C JUNGLE

6. H STOP

Q378

H PULSE

Detector

IC5005.

IC8006

HV Detector

43 244544

6. LOW B

8. HV.STOP

IC704

MAIN-CPU

3. OVP

2. OCP

9. Audio

IC702

EEPROM

IC703

EEPROM

Audio AMP

Q714

+5V DETECT

IC708

IC5005

OVP Buffer

OCP Buffer

5. AKB

DC Detect

IC8003 V Drive

OVP DETECT

OCP DETECT

4. V STOP

Q8001

V Pulse Detector

C Board

— 9 —

KP-51WS500/57WS500/65WS500

SECTION 1: DISASSEMBLY

1-1. REAR BOARD REMOVAL 1-2. CHASSIS ASSEMBLY REMOVAL

Three screws, dome washer

Rear board

HEX tap 4 x 20

1-3. SERVICE POSITION

Nine Screws, dome washer

HEX tap 4 x 20

Disconnect CN17, 18, and 19

on the A board.

From V board CN9001.

A board

CN17, 18, and 19

D board

(The extension cable is not supplied because of the countermeasure for radiation.)

Covers Remove covers from chassis assembly with pliers when checking printed circuit boards. After checking, turn the covers over and re-secure them with the screws.

Chassis assy

Chassis assembly

Screws (+BVTP 3x12)

— 10 —

1-4. H2 BOARD REMOVAL

)

Screw, dome washer

HEX tap 4x20

Cap, speaker grille

Screw, dome washer

HEX tap 4x20

Cap, speaker grille

Six screws

(+BVTP 4x12

H2 board

Button, multi

KP-51WS500/57WS500/65WS500

1-6. H3 BOARD REMOVAL

Holder, front teminal

Two screws

(+BVTP 3x12)

Screws

(+BVTP 4x12)

Bracket, H3

H3 board

Screw

(+BVTP 3x12)

Door, front terminal

1-5. H1 BOARD REMOVAL

Bracket H1

Button, power

Guide, LED

Two screws

(+BVTP 4x12)

H1 board

Screw

(+BVTP 3x12

Screw

(+BVTP 4x12)

— 11 —

KP-51WS500/57WS500/65WS500

1-7. MIRROR COVER REMOVAL 1-8. BEZNET ASSEMBLY REMOVAL

Twenty three screws,

dome washer HEX tap 4x20

Mirror cover

Screws,

dome washer HEX tap 4x20

Beznet assy

Screws,

dome washer HEX tap 4x20

1-9. S BOARD REMOVAL

Claws

S board

Sensor bracket (B)

Sensor bracket (A)

Two screws

(+BVTP 4x12)

Four screws

(+BVTP 4x12)

L screen holder

Two screws

(+BVTP 4x12)

1-10. AD BOARD AND B BOARD REMOVAL

B board

AD board

Main bracket

— 12 —

1-11. G BOARD REMOVAL

Claw

Four screws

(+BVTP 3x12)

G board

Claws

Main bracket

Bracket G

Claw

screw

(+BVTP 4x12)

KP-51WS500/57WS500/65WS500

1-12. TERMINAL BOARD, A BOARD, D BOARD, U BOARD, AND UD BOARD REMOVAL

Two screws

(+BVTP 3x12)

Six screws

(+BVTP 3x12)

D board

Main bracket

Screws

(+BVTP 3x12)

A board

U board

Claws

(+BVTP 4x20 dome washer)

UD board

Five screws

(+BVTP 3x12)

Two screws

Terminal board

— 13 —

1-13. PICTURE TUBE REMOVAL

CAUTION Removing the arrow-marked

screws is strictly prohibited. If removed, it may cause liquid spill.

Lens

Picture tube

Four screws, dome washer HEX tap 4x20

dome washer HEX tap 4x20

11 (+BVTP 4x12) 12

Neck assy

Four screws,

Lens Four screws

Picture tube

Deflection yoke

V board

Two screws

(+BVTP 3x12)

CR board

KP-51WS500/57WS500/65WS500

Four screws,

dome washer HEX tap 4x20

1-14. HIGH-VOLTAGE CABLE INSTALLATION AND REMOVAL

(1) Removal

Rubber cap

HV cable

turn 90°

(2) Installation

HV cable

Hook

— 14 —

Gutter

SECTION 2: SET-UP ADJUSTMENTS

KP-51WS500/57WS500/65WS500

2-1. SCREEN VOLTAGE ADJUSTMENT (COARSE ADJUSTMENT)

1. Receive the Monoscope signal..

2. Set BRIGHTNESS to 50% and PICTURE to minimum.

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 retrace line is barely visible.

4. Gradually turn the control to the left until the retrace line disappears.

R G B

SCREEN

R G B

FOCUS

FOCUS Block

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

If the jig described below is available, it is recommended that the G2 Fine Mode Adjustment be performed to set the screen controls to their optimal condition. If desired, you can build the jig illustrated below, using 3-watt resistors. Please note that if the proper voltage is not obtained with the listed resistor’s values, then increase or decrease one of the values in the resistor network to obtain the correct voltage.

2-3. DEFLECTION YOKE TILT ADJUSTMENT

1. Connect the color bar generator monoscope pattern to Video 1 input.

2. Cover the red and blue CRT lenses with lens caps to allow only green to show (or use the method shown in the note below for turning off the CRTs individually without using lens caps).

3. Loosen the CRT’s deß ection yoke set screw and align the tilt of the deß ection yoke so that the horizontal bars at the center of the monoscope pattern are horizontal.

4. After aligning the deß ection yoke fasten it securely to the funnel-shaped portion (neck) of the CRT.

The tilt of the deß ection yoke is aligned in the mode.

5. Cover the green and blue CRT lenses with lens caps to allow only green to show (or use the method shown in the note below for turning off the CRTs individually without using lens caps), then repeat steps 3 and 4 for the red CRT.

Cover the green and red CRT lenses with lens caps to allow only

green to show (or use the method shown in the note below for turning off the CRTs individually without using lens caps), then repeat steps 3 and 4 for the blue CRT.

Note: If lens caps are unavailable, you can cut off the unnecessary color beams by controlling the service mode 2150P-2 1 RGBS.

4-pole magnet

2-pole magnet

Deflection yoke

1. Select VIDEO-1 mode no signal applied (the screen must be black).

2. Connect the G2 JIG.

3. SW on JIG.

4. Connect an oscilloscope to the TP7101(KR), TP7202(KG) and TP7301(KB) of CR board, CG board, and CB board.

5. Adjust red, green, and blue screen voltage to 177.5+/-0.5V with screen VR on the focus block.

G2 JIG

TO CG BOARD

TP7202

(210V)

GND

3.3k 3.9k 5.6k 6.8k

177.5V +/- 0.5V

GND

All resistors are 3W type

pedestal level

Centering magnet

Anode cap

— 15 —

KP-51WS500/57WS500/65WS500

2-4. FOCUS LENS ADJUSTMENT

In this adjustment, use the remote commander while in service mode. For details on the usage of the service mode and the remote commander, please refer to section 2-10. ELECTRICAL ADJUSTMENTS BY REMOTE COMMANDER.

1. Loosen the lens screw.

2. Cover the red and blue CRT lenses with lens caps to allow only green to show (or use the method shown in the note below for turning off the CRTs individually without using lens caps).

3. Turn the green lens to adjust to the optimum focus point with the crosshatch signal.

4. Tighten the lens screw.

5. Cover the green and blue CRT lenses with the lens caps to allow only red to show (or use the method shown in the note below for turning off the CRTs individually without using lens caps).

6. Turn the red lens to adjust to the optimum focus point with the crosshatch signal.

7. Tighten the lens screw.

8. Cover the green and red CRT lenses with the lens caps to allow only blue to show (or use the method shown in the note below for turning off the CRTs individually without using lens caps).

9. Turn the blue lens to adjust to the optimum focus point with the crosshatch signal.

10. Tighten the lens screw.

11. After adjusting the items:

2-5. FOCUS VR ADJUSTMENT,

2-6. 2-POLE MAGNET ADJUSTMENT,

2-8. 4-POLE MAGNET ADJUSTMENT,

reconÞ rm the optimum focus point and adjust again if necessary.

2-5. FOCUS VR ADJUSTMENT

1. Set generator to crosshatch.

2. Cover the red and blue CRT lenses with lens caps to allow only green to show (or use the method shown in the note below for turning off the CRTs individually without using lens caps).

3. Turn the green focus VR on the focus block to adjust to the optimum focus point with the crosshatch signal.

4. Cover the green and blue picture lenses with lens caps to allow only red to show (or use the method shown in the note below for turning off the CRTs individually without using lens caps).

5. Turn the red focus VR on the focus block to adjust to the optimum focus point with the crosshatch signal.

6. Cover the green and red picture lenses with lens caps to allow only blue to show (or use the method shown in the note below for turning off the CRTs individually without using lens caps).

7. Turn the blue focus VR on the focus block to adjust to the optimum focus point with the crosshatch signal.

8. After adjusting the items:

2-4. FOCUS LENS ADJUSTMENT,

2-6. 2-POLE MAGNET ADJUSTMENT,

2-8. 4-POLE MAGNET ADJUSTMENT,

reconÞ rm the optimum focus point and adjust again if necessary.

Note: If lens caps are unavailable, you can cut off the unnecessary color beams by controlling the service mode 2150P-2 1 RGBS.

Scanning line visible.

* Every time 6 is pressed, the test signal changes to:

“crosshatch+video signal” → “crosshatch+borderline(black)” → ”crosshatch(black)” → “dots(black)” → off

Test Signal

Note: If lens caps are unavailable, you can cut off the unnecessary color beams by controlling the service mode 2150P-2 1 RGBS.

Lens

Minimize both A and B.

Center of crosshatch

— 16 —

+ 32 hidden pages

Sony KP-65WS500, KP-57WS500, KP-51WS500 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

TABLE OF CONTENTS

SPECIFICATIONS

WARNINGS AND CAUTIONS

SAFETY CHECK-OUT

SELF-DIAGNOSTIC FUNCTION

1-1. REAR BOARD REMOVAL 1-2. CHASSIS ASSEMBLY REMOVAL

1-3. SERVICE POSITION

1-4. H2 BOARD REMOVAL

1-6. H3 BOARD REMOVAL

1-5. H1 BOARD REMOVAL

1-7. MIRROR COVER REMOVAL 1-8. BEZNET ASSEMBLY REMOVAL

1-9. S BOARD REMOVAL

1-10. AD BOARD AND B BOARD REMOVAL

1-11. G BOARD REMOVAL

1-12. TERMINAL BOARD, A BOARD, D BOARD, U BOARD, AND UD BOARD REMOVAL

1-13. PICTURE TUBE REMOVAL

1-14. HIGH-VOLTAGE CABLE INSTALLATION AND REMOVAL

2-1. SCREEN VOLTAGE ADJUSTMENT (COARSE ADJUSTMENT)

2-3. DEFLECTION YOKE TILT ADJUSTMENT

2-4. FOCUS LENS ADJUSTMENT

2-5. FOCUS VR ADJUSTMENT