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Coil Grips

H.V. remains in the CRT even after the power is
disconnected.

To avoid electrical shock, discharge CRT before
attempting to remove the anode cap :  Short between
anode and CRT coating earth ground strap.

 Do not use sharp objects which may cause damage to the sur-

face of the anode-cap.

 Do not squeeze the rubber covering too hard to avoid damag-

ing the anode-cap. A material fitting called a shatter-hook ter-
minal is built into the rubber.

 Do not force turn the foot of the rubber cover. This may cause

the shatter-hook terminal to protrude and damage the rubber.

 Turn up one side of the rubber cap in

the direction indicated by arrow 

.

 When one side of the rubber cap sepa-

rates from the anode button, the anode-
cap can be removed by turning the rub-
ber cap and pulling it in the direction of
arrow 

.

 Use your thumb to pull the rubber cap

firmly in the direction indicated by
arrow 

.

NOTE:   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.

   The following adjustments should be made when a
   complete realignment is required or a new picture
   tube is installed. These adjustments should be performed
   with rated power supply voltage unless otherwise noted.

The controls and switch should be set as follows
unless otherwise noted:

PICTURE control ................. normal

BRIGHTNESS control ......... normal

Feed in the white pattern signal.

Before starting, degauss the entire screen.

1. Input a raster signal with the pattern generator.

2. Loosen the deflection yoke mounting screw, and set the

purity control to the center as shown in Fig.2.

3. Turn the raster signal of the pattern generator to

green.

4. Move the deflection yoke backward, and adjust with the

purity control so that green is in the center and red and
blue are at the sides evenly. (Fig.3)

5. Move the deflection yoke forward, and adjust so that the

entire screen becomes green. (Fig.1)

6. Switch over the raster signal to red and blue and confirm

the condition.

7. When the position of the deflection yoke is determined,

tighten it with the deflection yoke mounting screw.

8. When landing at the corner is not right, adjust by using

the disk magnets. (Fig.4)

 Perform the adjustments in order as follows:

1. Beam Landing
2. Convergence
3. Focus
4. Screen (G2) and White Balance

  Note:  Test Equipment Required

1.  Color Bar Pattern Generator
2. Degausser
3.  DC Power Supply
4.  Digital Multimeter

• Before starting, perform FOCUS, V. LIN and V. SIZE

adjustments.

• Set BRIGHTNESS control to minimum.
• Feed in dot pattern.

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

dots in the center of the screen.  (Vertical movement)

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

• Before starting, 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

below. ( Fig. 8)

4. Tighten the deflection yoke screw.

5. Install the deflection yoke spacers.

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

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

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

In either case, repeat Beam Landing Adjustment.

2. When the V. STAT magnet is moved in the direction of

arrow a and b, red, green, and blue dots move as
shown below:

(1)  SERVICE MODE PROCEDURE

1. Standby mode. (Power off)

2.

 

   

 

 

 

 on the

Remote Commander.  (Press each button within a second.)

(2)  SERVICE  ADJUSTMENT MODE IN

3. The CRT displays the item being adjusted.

4. Press 1 or 4 on the Remote Commander to

select the item.

5. Press 3 or 6 on the Remote Commander to

change the data.

6. Press 

 then 

 to write into memory.

(3) SERVICE  ADJUSTMENT MODE MEMORY

1.  Input a dots pattern.

2.  Set the PICTURE and BRIGHT controls at minimum

 and COLOR control at normal.

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

oscilloscope as shown in Fig. 11 so that voltages on the red,
green, and blue cathodes are: 170Vdc

4. Observe the screen and adjust:

SCREEN (G2) VR

 to obtain the faintly visible background of dot signal.

Affix a permalloy assembly corresponding to the misconverged
areas:

1.      Adjust FOCUS control for best picture.

Disp.
(Item)

Item
data

7. Turn set off and on to exit.

1. Input an entire white signal.

2. Set to Service adjustment Mode.

3. Set DCOL to "0"

4. Set the PICTURE and BRIGHT to minimum.

5. Adjust with SBRT if necessary.

6. Select GCUT and BCUT with 1 and 4 .

7. Adjust with 3 and  6  for the best white balance.

8. Set the PICTURE and BRIGHT to maximum.

9. Select GDRV and BDRV with 1 and 4 .

10. Adjust with 3 and  6  for the best white balance.

11. Reset DCOL to "1".

12. Write into the memory by pressing 

  then 

 .

  Green

     Red

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