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Before starting, perform Vertical and Horizontal 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:

R G B

B G R

R
G
B

R

G

B

B G R R G B

R G B

R

R

R

G

B

G

B

G
B

R G B B G R

4.  Tighten the deflection yoke screw.
5.  Install the deflection yoke spacers.

1.  Affix a permalloy assembly corresponding to the misconverged areas: 

b

a

c

d

a

b

a-d: screen-corner

misconvergence

c

d

•  Input crosshatch pattern.
•  Adjust Picture Quality to standard, Picture and Brightness to 50%, and 

Other to standard.

•  Adjust the Horizontal Convergence of red and blue dots by tilting the 

TLH plate on the deflection yoke.

XCV

WA Board

RV701

V.STAT

Y Magnet

TLH Plate

H-TRP

YCH

TLV

C Board

TLH+
TLH-

  B R
(R)(B)

  R B
(B)(R)

1.  Adjust XCV core to balance X axis.
2.  Adjust YCH VR to balance Y axis.
3.  Adjust vertical red and blue convergence with V.TILT (TLV VR.) 

Perform adjustments while tracking items 1 and 2.

4.  Adjust Y MAGNET to correct V.BOW Geometry Distortion.
5.  Adjust H-TRP to correct H.Trapezoid Geometry Distortion.

After adjusting items 4 and 5, confirm overall geometry again.

1.  Input monoscope signal.
2.  Set user controls to normal.
3.  Set video mode to STANDARD.
4.  Set the PICTURE to maximum.
5.  Adjust at 325 Mark for best center/corner focus balance.
6.  Receive an entire white signal.  Make sure Magenta Ring is at an 

acceptable level.

Focus

Screen (G2)

35

325

35 MARK

325 MARK

CENTER

CIRCLE

1.   Input dot pattern from the pattern generator.
2.   Set the user controls to NORMAL.
3.  Attach the G2-Jig to the C Board.
4.  Adjust RCUT, GCUT, BCUT, and SBRT in service mode with an 

oscilloscope so that voltages on the red, green, and blue cathodes 

are 170 ± 4.0Vdc. 

5.  Observe the screen and adjust SCREEN (G2) VR  to obtain the 

faintly visible background of dot signal.

6.  Push the TEST + JUMP (+ Channel) to cut off the signal.  The screen 

should be bright or dark.  Brightness of raster must be increased 

when adjusting.

7.  Adjust screen VR until the screen is slightly cut off, or scarcely lights 

up.  A signal cannot be seen when the brightness of the raster is high.

8.  Push the JUMP again to release the cut off.

pedestal

GND

170Vdc

 170 + 4.0 Vdc

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87

1.  Set program palette to STANDARD and push RESET.
2.  Input an entire white signal.
3.  Set to Service Adjustment Mode.
4.  Set the PICTURE and BRIGHT to minimum.
5.  Adjust with SBRT if necessary.
6.  Set RCUT to “14”.
7.  Select GCUT and BCUT with  3 and  5 .
8.  Adjust by pressing  1 and  4 for the best white balance.
9.  Set the PICTURE and BRIGHT to maximum.
10. Select GDRV and BDRV with  and  .
11. Adjust with 3 and 6 for the best white balance.
12. Write into the memory by pressing  3 then  5.
13. Repeat steps 1-12 for GDR4, BDR4, GCU4 and BCU4 using      

Video 4 input. 

*  Use values from Sub Contrast Adjustments

3-1.  X R530, R531 CONFIRMATION METHOD 

Always perform the following adjustments when replacing the following 

components marked with a Y  mark on the schematic diagram:

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1.  Using a Variac, apply AC input voltage: 120 +/- 2.0 VAC.
2.  Turn the POWER switch ON.
3.  Input a white signal and set the PICTURE and BRIGHT controls to 

maximum.

4.  Confirm that the voltage of more than 23.0 VDC appears between 

TP85 and ground on the A Board. 

1.  Connect the current meter between Pin 11 of the FBT (T503) and the 

PWB land where Pin 11 would normally attach. (See Figure 1).

2.  Input a dot signal and set PICTURE and BRIGHTNESS to minimum: 

IABL = 2175 + 100/ -325 µA.

3.  Confirm the voltage of A Board TP91 is 135 ± 1.5 VDC.
4.  Connect the digital voltmeter and the DC power supply to TP85 and 

ground. (See Figure 1)

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 = 27.24 + 0.0/ - 0.1 

VDC). 

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

maximum: IABL = 2175 + 100/ -325 µA.

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 R530, R531 component marked with X. 

 

3mA DC range

+

-

+

-

A

+

-

FBT

TP85

T503
FBT

TP85

R531 R530

DC Power Supply

digital multimeter

ammeter

 

 

Always perform the following adjustments when replacing the following 

components, which are marked with Y on the schematic diagram on the 

GK Board:

     GK BOARD:   IC600, PH602 

1.  Using a Variac, apply AC input voltage: 130 + 2.0/-0.0 VAC
2.  Input a monoscope signal.
3.  Set the PICTURE control and the BRIGHT control to  

 

minimum.

4.  Confirm the voltage on A Board between TP23 and ground is less 

than 136.5 VDC.

5.  If step 4 is not satisfied, replace R530 and R531 on A Board and 

repeat the above steps.    

1.  Standby mode (Power off).
2.  Press the following buttons on the remote commander within a second 

of each other: 

  DISPLAY  

 Channel  5 

 Sound Volume  + 

 Power

Mode

Disp 

Item 

Item

(Item) 

Order 

Data

VP 

0 

7  SERVICE

HSIZ   

TV

1.  The CRT displays the item being adjusted.
2.  Press   1 or  2 on the Remote Commander to select the item.
3.  Press  3 or   6 on the Remote Commander to change the data.
4.  Press MUTING then ENTER to write into memory.

ENTER

MUTING

Disp 

Item 

Item

(Item) 

Order 

Data

VP 

0 

7  SERVICE

HSIZ   

TV

Green

Red

1.  Press  then  on the Remote Commander to initialize.

Disp 

Item 

Item

(Item) 

Order 

Data

VP 

0 

7 

WRITE

HSIZ   

TV

Carry out Step 1 when adjusting 

ID’s 0-7 and when replacing and 

adjusting IC003.

2.   DO NOT turn off set until SERVICE appears.

Use the Remote Commander (RM-Y180, RM-Y181) to perform the circuit adjustments in this section.

Test Equipment Required:   1. Pattern generator   2. Frequency counter   3. Digital multimeter  4.  Audio oscillator

1.  After adjustment, pull out the plug from the AC outlet, then replace 

the plug in the AC outlet again.

2.  Turn the power switch ON and set to Service Mode.
3.  Call the adjusted items again to confirm they were adjusted.

MUTING

(Enter into 

memory)

POWER

(Service Mode)

2

(Device Item Up)

4

Disp. (Item down)

8

(Initialize)

3

Item 

(Data up)

1

Disp. (Item up)

5

(Device item 

down)

ENTER

(Enter into 

memory)

0

(Remove from 

memory)

VOLUME (+)

(Service Mode)

6

Item 

(Data down)

DISPLAY

(Service Mode)