DOWNLOAD Sony KV-PG14L70 Service Manual ↓ Size: 3.15 MB | Pages: 42 in PDF or view online for FREE

– 13 –

Preparation :
•

Before starting this adjustment, adjust the focus, horizontal
size and vertical size.

•

Receive dot/hatch signal.

•

Pic mode: Soft.

1. (Moving vertically), adjust the V.STAT magnet so that the

red, green and blue dots are on top of each other at the
center of the screen.

2. (Moving horizontally), adjust the H.STAT VR control so

that the red, green and blue dots are on top of each other at
the center of the screen.

3. If the H.STAT variable resistor cannot bring the red, green

and blue dots together at the center of the screen, adjust the
horizontal convergence with the H.STAT variable resistor
and the V.STAT magnet in the manner given below.
(In this case, the H.STAT variable resistor and the V.STAT
magnet influence each other, so be sure to perform adjust-
ments while tracking.)

1

3

Center dot

R    G    B

R

G

B

H. STAT VR

V. STAT

Magnet

RV702

H. STAT

C Board

•

Operation of V. Stat magnet
If the V. Stat magnet is moved in the "a" and "b" arrows, the
red, green and blue dots move as shown below.

BMC (Hexapole)

V.STAT

DY pocket

Purity

V.STAT

BMC

Purity

2

R

R

G

G

B

B

a

a

b

b

b

R

R

G

G

B

B

a

b

a

b

R

R

G

G

B

B

a

a

b

b

b

4

BMC (Hexapole) Magnet.
If the red, green and blue dots are not balanced or aligned,
then use the BMC magnet to adjust in the manner described
below.

R G

B

R

G

B

R

G B

R

B

R

G

G

G

B

R

B

– 14 –

TLH

Insert

TLH

Correction Plate to DY Pocket (Left or Right)

YCH

Rotate

YCH

VOL on DY

TLV

Rotate

TLV

VOL ON DY

XCV

Rotate

XCV

Adj core on DY

ON DY:

Before starting this adjustment, adjust the horizontal static

convergence and the vertical static convergence

R B

R B

TLH

TLV

YCH

XCV

B

R

R

B

YCH

TLV

DY pocket

DY pocket

XCV

– 15 –

FOCUS adjustment should be completed before W/B adjustment.
1. Receive digital monoscope pattern.
2. Set "Picture Mode" to "DYNAMIC".
3. Adjust focus VR so that the center of screen becomes

just  focus.

4. Change the receiving signal to white pattern and blue back.
5. Confirm magenta ring is not noticeable. Incase magenta is

very obvious, adjust focus VR to take balance of magenta
ring and focus.

1) Set the PICTURE to normal.
2) Put to VIDEO input mode without signals.
3) Connect R, G and B of the C board cathode to the

oscilloscope.

4) Adjust BRIGHTNESS to obtain the cathode voltage to the

value below.

5) Adjust G2 (screen) on the FBT until picture shows the point

before cut off.

0 V

Cathode setting voltage:

175 V 

± 2 (VDC)

2.a) WHITE BALANCE ADJUSTMENT
1) Set to Service Mode (Refer Section 4-1: ADJUSTMENTS

WITH COMMANDER).

2) Input white raster signal.
3) Set 49 (ABL) and IF (VP2) service mode to 00.
4) Set Picture to DYNAMIC.
5) Select OB (RDR) with [1] and [4], and set the level to 25

with [3]  and [6] for best white balance.

6) Select OC 'GDR' and OD 'BDR' with [1] and [4], and adjust

the level with [3] and [6] for the best white balance.

7) Write into the memory by pressing [MUTING] then [0].
8) Set back 49 'ABL' and IF 'VP2' service mode to original data.

2.b) SUB BRIGHT ADJUSTMENT
1) Set to service mode.
2) Set 49(ABL) and IF (VP2) service mode to 00
3) Input a staircase signal of black to white from the pattern

generator.

4) BRIGHTNESS .... 50%.

PICTURE ............ MINIMUM

5) Select OE 'SBR' with [1] and [4], and adjust OE 'SBR' level

with [3] and [6] so that the second stripe from the right is
dimly lit.

6) Write into the memory by pressing [MUTING] then [0].
7) Set back 49 (ABL) and IF (VP2) service mode to original data.

White

second from the right

Black

FOCUS

SCREEN

a

d

c

b

a to d : Permalloy assembly

Fix a Permalloy assy
corresponding to the
misconverged areas

b

a

c

d

a-d : screen-corner
        misconvergence

– 16 –

Service adjustments to this model can be performed using the
supplied Remote Commander RM-952

a. ENTERING SERVICE MODE
With the unit on standby

This operation sequence puts the unit into service mode.

The screen display is :

Set the standby condition (Press [POWER] button on the

commander), then press [POWER] button again, hereupon it

becomes TV mode.

1) Set to Service Mode.

2) Press [1] (UP) and [4] (DOWN), to select the adjustment.

4) Press [MUTING] button to indicate WRITE on the screen.

5) Press [0] button to write into memory.

1) After adjustment, pull out the plug from AC outlet, and then

plug into AC outlet again.

2) Turn the power switch ON and set to Service Mode.

3) Call the adjusted items again to confirm adjustments were

made.

n

 

[DISPLAY]

 

n

 

5

 

n

  

VOL (+)

  

n

 

[POWER]

Item Number 00 HPS

This explanation uses H Shift as an example.

1. Select “00 HPS” with the 1 and 4 buttons.

2. Raise/lower the data with the 3 and 6 buttons.

3. Select the optimum state. (The standard is 1F for PAL

reception.)

4. Write with the 

[MUTING]

 button. (The display changes to

WRITE.)

5. Execute the writing with the - button. (The WRITE

display will be changed to red color while excuting, and

back to SERVICE.)

Example on screen display :-

1, 4

Select the adjustment item.

↓

3, 6

Raise/lower the data value.

↓

[MUTING]

Writes.

↓

 

-

Executes the writing.

7, -

All the data becomes the values in memory.

8, -

All user control goes to the standard state.

5, -

Service data initialization (Be sure not to use

usually.)

2, -

Copy and write all data.

[MUTE]

, -

Write 50Hz adjustment data to 60Hz or vice

versa.

Use the same method for all Items. Use 1 and 4 to select the

adjustment item, use 3 and 6 to adjust, write with [MUTING],

then execute the write with -.

Note  : 1. In  [WRITE], the data for all items are written into

memory together.

2. For adjustment items that have different standard

data between 50Hz or 60Hz, be sure to use the
respective input signal after adjustment.

PAL,SECAM:50
NTSC           :60

HPS

33

SERVICE

Data

Mode

Item 

Adjustment

Software version

Suffix No 
(OEM Code)

Total Power-On time (hours)

00

Item No

Depends on signal

1.6C

00

000A

50

079S
080S

33

SERVICE 50

HPS

Adjusted with [3] and [6] buttons.

GREEN

Write with [MUTING]

Write executed with [0]

00

33

WRITE

50

HPS

GREEN

00

33

WRITE

50

HPS

00

RED
The WRITE display
then the display
returns to green
SERVICE