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Before starting convergence adjustments:

1. Perform FOCUS, V.LIN AND V.SIZE adjustments.

2. Set BRIGHTNESS control to minimum.

3. Feed in dot pattern.

1. Adjust V.STAT magnet to converge red, green and blue

dots in the center of the screen (Vertical movement adjust
V.STAT RV701 to converge).

B

G

R

Center dot

R G B

V.STAT magnet

RV701

V.STAT

2. Tilt the V.STAT magnet and adjust static convergence to open

or close the V.STAT magnet.

 

When the V.STAT magnet is moved in the direction of arrows
a and b, red, green, and blue dots move as shown below:

a

b

b

B

G

R

a

b

B

G

R

a

B

G

R

R

G

B

b

R

G

B

b

b

a

R

G

B

(1)

(3)

(2)

Before performing this adjustment, perform Horizontal
and Vertical Static Convergence Adjustment.

1. Slightly loosen deflection yoke screw.

2. Remove deflection yoke spacers.

3. Move the deflection yoke for best convergence

as shown on the following page.

If the blue dot does not converge with the red and green dots,
perform the following:

1. Move BMC magnet (a) to correct insufficient H. Static

convergence.

2. Rotate BMC magnet (b) to correct insufficient V. Static

convergence.

3. After adjusting the BMC magnet, repeat Beam Landing

Adjustment.

BMC MAGNET

PURITY

V.STAT

b

BMC magnet

R G B B G R

R G B

R

R

R

G

B

G

B

G
B

R G B

B G R

R
G
B

R

G

B

B G R R G B

4. Tighten the deflection yoke screw.

5. Install the deflection yoke spacers.

1. Input crosshatch pattern.

2. Adjust PICTURE QUALITY to standard, PICTURE and

BRIGHTNESS to 50%, and OTHER to standard.

3. Adjust the Horizontal Convergence of red and blue dots

by tilting the TLH plate on the deflection yoke.

(TLV)

YCH

XCV

TLV

CA
Board

VA
Board

RV701

 V.STAT

TLH Plate

  B R              R B
(R)(B)          (B)(R)

TLH+
TLH-

1. Adjust FOCUS control for best picture.

b

a

c

d

a

b

d

a-d: screen-corner

misconvergence

c

4. Adjust XCV core to balance X axis.

5. Adjust YCH VR to balance Y axis.

6. Adjust vertical red and blue convergence with V.TILT

(TLV VR).

Note: Perform adjustments 3-6 while tracking items 1 and 2.

1. Affix a permalloy assembly corresponding to the

misconverged areas.

Focus (FV)

Screen (G2)

1. Standby mode (power off).

2.  Press 

Display

Channel 5

Sound volume

Power

+

on the Remote Commander (press each button within a
second).

1. The CRT displays the item being adjusted.

2. Press 

 or 

 on the Remote Commander to select the item.

3. Press 

 or 

 on the Remote Commander to change the

data.

4. Press 

 then 

 to save into the memory.

Turn set off then on to exit Service Adjustment Mode.

service     defl     hsiz

16

ntsc

vchp     00000000    00000000

Category

Display 

Item

Mode

Item 
Data

Signal
Type

write

1. Input a dots pattern.

2. Set the PICTURE and BRIGHTNESS controls at minimum

and COLOR control at normal.

3. Adjust SBRT, GCUT, BCUT in service mode with an

oscilloscope as shown below so that voltages on the red,
green, and blue cathodes are 170 VDC ± 2V.

 

Pedestal

170 VDC – 2V

Ground

4. Observe the screen and adjust SCREEN (G2) VR in FBT

to obtain the faintly visible background of dot signal.

1. Input an entire white signal with burst.

2. Set to Service Adjustment Mode.

3. Set the PICTURE and BRIGHTNESS to minimum.

4. Adjust with SBRT if necessary.

5. Select GCUT and BCUT with 

 and 

 .

6. Adjust with 

 and 

 for the best white balance.

7. Set PICTURE and BRIGHTNESS to maximum.

8. Select GDRV and BDRV with 

 and 

 .

9. Adjust with 

 and 

 for the best white balance.

10. To write into memory, press 

 then 

 .

The following adjustments should always be performed when
replacing the following components which are marked with   on

the schematic diagram:

1. Using a Variac, apply AC input voltage: 120 ± 2 VAC.

2. Turn the POWER switch ON.

3. Input a white signal and set the PICTURE and

BRIGHTNESS controls to maximum.

4. Confirm that the voltage between C546 (+) or TP503

and ground is more than 21.0 VDC.

1. Connect the current meter between Pin 11 of the FBT

(T505) and the PWB land where Pin 11 would normally
attach. (See Figure 1 on the next page.)

2. Input a dot signal and set PICTURE and BRIGHTNESS

to minimum: IABL = 1730 ± 100 

µ

A.

3. Confirm the voltage of A Board TP-600 is 135 ± 1.5 VDC.

4. Connect the digital voltmeter and the DC power supply

via diode 1SS119 to C546 (+) and ground. (See Figure 1
on the next page.)

5. Increase the DC power voltage gradually until the picture

blanks out.

6. Turn DC power source off immediately.

7. Read the digital voltmeter indication

(standard < 24.78+0,-0.1  VDC).

8. Input a white signal and set PICTURE and BRIGHTNESS to

maximum: IABL = 1730 ± 100 

µ

A.

9. Repeat Steps 4 to 7.

If the setting indicated in  Step 2 of Hold-Down Operation
Confirmation cannot be met, readjustment should be performed by
altering the resistance value of R564 component marked with   .

+

IABL

ABL

T505

FBT

range

-

ammeter

3.0 mA DC

A

Note: The following adjustments should always be performed
when replacing the following components, which are marked
with   on the schematic diagram on the A Board.

IC601, PH601

1. Using a Variac, apply AC input voltage: 130 + 2.0, -0.0 VAC.

2. Input a dot signal.

3. Set the PICTURE and BRIGHTNESS controls to minimum.

4. Confirm that the voltage of A Board TP-600 is <136.5  VDC.

5. If Step 3 is not satisfied, replace the components listed above,

then repeat Steps 1–3.

Part Replaced ( )

Adjustment ( )

DY, T505, CRT, IC501, C507,
C520, C505, C509, C515, T504,
T503, C551, L510, C546, C537,
C547, D517, D518, D519, R560,
R561, R562, R563, R565, R566,
R567, R525 ....................... A Board

IC301 .............................. MA Board

HV HOLD-DOWN
R564