Sony KP-44PX3U User manual

Brand: Sony

Model: KP-44PX3U

Type: User manual

This manual is also suitable for

KP-44PX3

- 1 -

KP-44PX3

RM-945

SERVICE MANUAL AE-6Y CHASSIS

KP-44PX3

RM-945 AEP SCC-Q85K-A

SUPPLEMENT - 1

SUBJECT : CHANGES TO ADJUSTMENTS

MODEL

COMMANDER DEST CHASSIS NO.

9-927-477-81

Sony Corporation

Sony UK

Service Promotions Dept

English

04FP7100-1

In order to improve the adjustment of the TV set, some

changes to the adjustment sections have been made.

KP-44PX3U

RM-945 UK SCC-Q84U-A

MODEL

COMMANDER DEST CHASSIS NO.

SECTION 4. SET-UP ADJUSTMENTS

4-3. SCREEN (G2) ADJUSTMENT (Page 21) .............See page 2

4-5. 2-POLE MAGNET ADJUSTMENT (Page 22) .............See page 3

4-6. 4-POLE MAGNET ADJUSTMENT (Page 22) .............See page 3

SECTION 5. SAFETY RELATED ADJUSTMENT

5-1. HV HOLD-DOWN ADJUSTMENT (Page 23) .............See page 4

SECTION 6. ELECTRICAL ADJUSTMENTS

6-2-4. PROJECTOR ENGINE ADJUSTMENT (Page 30) .............See pages 5 & 6

(SUBDEFLECTION ADJUSTMENT)

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KP-44PX3

RM-945

Fig. 4-1

4-3. SCREEN (G2) ADJUSTMENT

1. Turn on the power of the set.

2. Program the remote commander for operation in Service mode.

(See Service Manual page 24).

3. Select VIDEO1 mode without signals.

4. Press the "audio/video" standby button twice then 38 on remote

commander to enter adjustment mode (picture will not be visible).

5. Supply DC 177.5 ±0.5 V from external power supply to

TP9000 (KR) of CR board.

6. Turn G2 VR counterclockwise until set retrace line just

disappears.

7. Supply DC 174 ±0.5 V from external power supply to

TP9000 (KR) of CR board.

8. Confirm that retrace can be seen.

9. Repeat from step 5 to adjust green (KG on CG board) and blue

(KB on CB board) screen voltages.

10. Press 00 to exit adjustment mode.

Important: DC power supply must have a DC load to supply

100mA. Connect a 1k8 18W resistor between power

supply terminals.

Fig. 4-5

Neck Assy

Make sure deflection yoke is

touching CRT closely.

2-pole magnet

4-pole magnet

Deflection yoke

Anode cap

SCREEN

FOCUS

Focus Pack

Fig. 4-4

Lens

Fig. 4-3

Fig. 4-2

Test signal

Minimize both A and B.

5. Rotate the green lens and align to obtain the best lens

focus at the center area.

6. Rotate the green focus VR on the focus pack and align to

obtain the best electrical focus at the centre area.

7. Perform the same alignment for red and blue lenses and

electric focus.

8. Fix lens screw.

SECTION 4 SET-UP ADJUSTMENTS

4-1. 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 pack 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.

4-2. FOCUS ROUGH ADJUSTMENT

1. Loose the lens screw.

2. Program Remote Commander for operation in Service

mode (See Page 23).

3. Place the caps on the red and blue lens so that only the

green color is shown.

4. Press “VIDEO” “VIDEO” “5” “6” on the remote

commander to enter 'Projector Engine'. Press “6” twice

on the Commander to display the test signal (crosshatch)

on the screen.

4-4. DEFLECTION YOKE TILT ADJUSTMENT

1. Receive the Monoscope signal.

2. Place the caps on the red and blue lens so that only the

green color is shown.

3. 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.

4. After aligning the deflection yoke, fasten it securely to

the funnel-shaped portion (neck) of the CRT.

5. The tilt of the deflection yoke for red and blue is aligned

the same as was done for green.

Amended

Section

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KP-44PX3

RM-945

4-5-3. Adjustment of 4-Pole magnets

Fig. 4-8

Adjust Point : Circular Areas

4-6. GREEN, RED AND BLUE FOCUS

ADJUSTMENT

4-6-1. Green, Red and Blue Lens Focus

Adjustment

1. Receive the Monoscope signal and set PICTURE to

minimum BRIGHTNESS to 50%.

2. Place the caps on the red and blue lens so that only the

green color is shown.

3. Rotate the green lens and adjust to obtain the best lens

focus at the center area.

4. Fix lens screw.

5. Repeat above process for red and blue.

4-6-2. Green, Red and Blue Electrical Focus

Adjustment

1. Receive the Monoscope signal and set PICTURE to

minimum BRIGHTNESS to 50%.

2. Place the caps on the red and blue lens so that only the

green color is shown.

3. Rotate the green focus VR on the focus pack and adjust

to obtain the best electrical focus in all areas.

4. Repeat above process for red and blue.

4-5. 2-4-POLE MAGNET ADJUSTMENT

4-5-1. Adjustment of DY centering magnet

1. Receive SPCB signal.

2. Place the caps on the red and blue lens so that only the

green color is shown.

3. Adjust green centre magnet so that the centre of SPCB is in

the centre of the screen.

4. Perform the same adjustment for red and blue.

Note: PJE data must be a regulation value.

4-5-2. Adjustment of 2-Pole magnets

1. Receive the Dot-Crosshatch signal.

2. Place the caps on the red and blue lens so that only the

green color is shown.

3. Turn the green focus VR on the focus pack counter-

clockwise to enlarge the spot.

4. Now align the 2-Pole Magnet so that the enlarged spot is in

the center of the just focus spot.

(center of the dot doesn't move)

5. Align the green focus VR and set for just (precise) focus.

6. Check if the picture centre has moved. If so, repeat

procedure from DY centering magnet until the centre is

fixed.

7. Perform the same alignment for red and blue.

1. Receive the Dot-Crosshatch signal.

2. Place the caps on the red and blue lens so that only the

green color is shown.

3. Turn the green focus VR on the focus pack clockwise to

enlarge the spot.

4. Now align the 4-Pole Magnet so that the enlarged spot

becomes a perfect circle.

5. Perform the same alignment for red and blue.

6. Turn the focus pack VR’s counter-clockwise and “Just Focus”

Red, Green and Blue.

Note: Adjustment point for R,G is the centre of the screen.

Adjustment point for B is the left side of the screen.

①

ust

focus

de-focus

moving

not-

moving

If necessary use the 4-pole magnet to make the spot

roughly circular.

How to use 2-4-pole magnets

Structure of 2,4 - pole magnets

Upper : 4-pole Magnets

Lower : 2-pole Magnets

How to rotate 2-pole:

1)Horizontal or Vertical moving

How to rotate 4-pole

1)Changing Horizontal or Vertical length

2)Moving rotation

Just focus De-Focus

*2.4-Pole Magnets

Torque:Spec 14kgf.cm.+/-1kgf.cm

1①

G OK NG

Amended

page

- 4 -

KP-44PX3

RM-945

Part Replaced ( )

D Board C8129, D8038, D8013, Q8024, R8002,

R8055, R8102, R8218, R8219, R8223

R8230, R5140, R9901, T5102, T5104,

T8005 (FBT)

When replacing the following components marked with below

always check hold-down voltage and if necessary re-adjust.

5-1. HV Hold-Down Adjustment

1. Turn off the TV set.

2. Connect HV static voltmeter with peak hold to HV Block.

3. Turn on the TV set.

4. Switch the TV signal to white pattern

5. Set the Picture to maximum and the Brightness to centre value.

6. Adjust VR8001 so that high voltage at HV-Block is

31.0 +0.20/-0.20KV.

Part Replaced ( )

R9901

Fig. 5-1

SECTION 5 SAFETY RELATED ADJUSTMENT

5-1-1. HV Adjustment

Remove the cap off from

the unused terminal and

connect a HV static

voltmeter there.

5-1-2. HV prot Adjustment

1. Select Dot pattern.

2. Set the Picture to minimum and the Brightness to minimum.

3. Connect an external 10K Ohm VR at CN8015 and adjust this

VR so that HV is 34.0KV.

4. Confirm that HV prot works when adjusting VR8002.

5. Turn off the TV set. Set the external 10K Ohm VR to

maximum, then turn on the TV set.

6. Gradually increase the high voltage using the 10K Ohm VR

and confirm that HV prot works when the high voltage is

within spec. ( Spec : 34.0 +0.40/-0.40KV ).

7. Remove the external VR, HV voltmeter.

8. Replace rubber cap on HV test terminal of HV block.

Note: After adjustment, fix VR8001, VR8002 with RTV KE-490.

Amended

Sectrions

- 5 -

KP-44PX3

RM-945

3. Operation Method for Fine Adjustment

(in GRN, BLU, or RED Mode)

1. Select the Projector Engine mode.

2. Select FDIS so that the data at each position can be

displayed in the fine adjustment mode, and set the data to

“01”.

3. Press “9” button on the commander, and the fine adjustment

mode will be active where a green marker appears in the

center of screen (in the case of GRN mode).

4. Press “ (OK)” button, and the marker color will be

switched between green (GRN mode) and white alternately.

5. Use “1” or “4” button on the commander, or the joystick to

move the marker to the position to be adjusted, where

fine adjustment can be made.

• When marker color is white.

(in this case, fine adjustment is disabled)

Operating the joystick can move the marker up, down, or to

the left or right freely.

• When marker color is green. (GRN mode)

1 : moves the marker clockwise from center to outside.

4 : moves the marker counterclockwise from outside to center.

• Fine adjustment can be made on the basis of marker

position using v, V, b, B keys on the joystick.

6. Press “9” button on the commander to return to the rough

adjustment mode.

Push the joystick

to v

Push the joystick

to V

Push the joystick

to B

Push the joystick

to b

Push the joystick

to v

Push the joystick

to V

Push the joystick

to B

Push the joystick

to b

CROSSHATCH

Movement when v key

on joystick is pressed.

Movement when B key

on joystick is pressed.

CROSSHATCH

6-2-4. Projector Engine Adjustment

(Sub Deflection Adjustment)

• GRN CENT (horizontally/vertically)

7. Select “GRN SKEW”, and correct the tilt of horizontal lines

and vertical lines.

• GRN SKEW (horizontally/vertically)

Adjustment Type

Adjustment Item GRN RED BLU

H / V H / V H / V

CENT a / aa / aa / a

SKEW a / aa / aa / a

SIZE a / aa / aa / a

LIN a / aa / aa / a

KEY – / a– / a– / a

PIN a / aa / aa / a

MLIN a / – a / – a / –

MSIZ a / – a / – a / –

Adjustment aa

a : Yes – : No

Note: See next page for adjustment values.

1. Green Adjustment

1. Place the caps on the red and blue lenses so that only the

green color is displayed.

2. Enter the PAL SPCB signal to set the PAL mode.

3. Set the screen format to “Wide”.

4. Select the Projector Engine mode.

5. Press “6” button on the commander to display internal test

signal (crosshatch).

6. Select “GRN CENT”, and adjust so that the picture coincide

in the center of screen.

Added

note

- 6 -

KP-44PX3

RM-945

SEULAVLAITININOITCELFEDBUS

DERNEERGEULB

HV H V HV

ERTNEC 530253025302

WEKS 000 0 00

EZIS 001-57-001-57-001-57-

NIL 524000 524-0

YEK X021X0X 021-

NIP 00530 0040053

NILM 051-X0X051X

EZISM 001-X0X001-X

Sub Deflection Adjustment Tables

SEULAVEGNARTNEMTSUJDANOITCELFEDBUS

DERNEERGEULB

HV H V HV

ERTNEC 071-/+53071-/+02071-/+53071-/+02071-/+53071-/+02

WEKS 57-/+57-/+57-/+

EZIS 57-ot215-57-ot215-57-ot215-

NIL 524ot215- 215+ot524-

YEK

NIP

NILM

EZISM 0otxiF

The values shown in Table 6.2.4.2 must be kept within this range. All other values may be adjusted to the register limits.

Following subdeflection adjustment, the required adjustments should be made using fine adjustment.

Table 6.2.4.1

Table 6.2.4.2

Added

page

Sony KP-44PX3U User manual

Brand: Sony

Model: KP-44PX3U

Type: User manual

This manual is also suitable for

KP-44PX3

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Sony KP-44PX3U User manual

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