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– 21 –

•

1.

Enter the full white signal. (or the full black dots signal).

2.

Adjust the contrast to the maximum.

3.

Make the screen monogreen.

Note: Off the outputs from R ch and B ch of SG.
4.

Adjust the brightness is easy to see with the G2 resistor.

5.

Reverse the DY, and adjust coarsely the purity magnet so
that a green raster positions in the center of screen.

6.

Moving the DY forward, adjust so that an entire screen be-
comes monogreen.

7.

Adjust the tilt of DY, and fix lightly with a clamp.

•

1.

Put the set inside the Helmholtz coil.

2.

Input the single green signal and set the CONT control to
MAX.

Note: Set to 

∑

 1k=300 

µ

A with the signal green signal, and after

aging for about 30 minutes, adjust so that it is exactly this
value.

3.

Before making any adjustment, confirm that respective
preadjustment values of the registers listed below have
been entered correctly.

LCC K TEMP

100 LCC R TOL

128

LCC K EW C

105 LCC SW7

7

LCC K NS C

0 LCC TEMP

151

LCC K NS

160 LCC VX

#

LCC K NS FOR ROT 64 LCC VY

#

LCC K ROT FOR NS 46 LCC K VY NS

0

LCC K POL

255 LCC P TOL

128

LCC WO

128

#=Input values in time adjustments

Also, confirm that “LCC NS=LCC LT=LCC LB=LCC
RB=LCC RT=128”

4.

Send the “LCC READ” command of the ECS.
If the ECS command cannot be used, execute the status read-
ing and VX, VY and V TEMP values may be entered to
“LCC VX”, “LCC VY” and “LCC TEMP” respectively.

5.

Execute the service saving.

6.

Demagnetize the metal part of the chassis with the hand de-
gausser and coil degausser, and the CRT surface with the
hand degausser.
Input AC 230V to AC IN, turn on and off the power to per-
form auto degaussing. (Perform auto degaussing by setting
“MON CON REG 2”=152. Return to the original value after
use.)
Demagnetize the CRT surface with the hand degausser
again.

Note: The power must be turned off during chassis degaussing.
7.

Attach the wobbling coil to the designated part of the CRT
neck.

8.

Attach the sensor of the landing adjustment unit on the CRT
surface.

9.

Adjust the DY position and purity, and the DY tilt, and land-
ing of the center and 4 corners with the landing checker.

Note:
(1) Adjust in s non-magnetic field. BV=35uT.
(2) If adjusting in a magnetic fields, add the shift from the non-

magnetic field in your estimation.

<Specification>

Adjust the green of corners 1 to 4, and center 6 to 

±

5 

µ

m, and red

and blue to within 

±

7 

µ

m of green, and the difference between

red and blue to within 

±

10 

µ

m.

Adjust the green of 5 and 7 to within 

±

10 

µ

m, and red and blue to

within 

±

7 

µ

m of green, and the difference between red and blue

to within 

±

10 

µ

m.

(Set each corner to 1st frame of the crosshatch.)

10. For the up/down and left/right swing, swing the DY and in-

sert a wedge so that the up and down pins are equal at the top
and bottom and the horizontal trapezoid is equal at the left
and right. Insert the wedge firmly so that the DY does not
shake.

11. Check the landing of each corner, and if they do not satisfy

the specification, paste a Disk-Mg onto the funnel and ad-
just.

Note:
(1) Do not paste more than 2 magnets to one corner.
(2) Paste within 80 to 100 mm from the DY on the diagonal line

of the magnet.

(3) If using the magnet, be sure to demagnetize with the hand

degausser and check.

(4) If the specification cannot be satisfied though the adjustment

of 11 was made, the following adjustment may be made.
a) Adjust the “LCC xx” register that corresponds to the part

to be adjusted. (See the following figure)

Note : “LCC NS” =108~148

except for “LCC NS”=114~142

b) Execute the service saving.

“LCC LT”

“LCC NS”

“LCC RT”

“LCC LB”

“LCC NS”

“LCC RB”

(5) If performing a manual degaussing after adjustment of “LCC

xx”, set “LCC xx” to 128 (of “LCC SW” to 0).
(After degaussing, return the adjustment value to original
value.)

12. Remove the sensor and wobbling coil.
13. Switch the signal to R.G.B., and check that each color is

pure.

14. Check that the DY is not tilting, and fix the purity Mg with a

white pen.

1

2

4

3

6

7

5

– 22 –

MODE

A

B

all mode

474mm

296mm

a

B

A

b

MODE

a

b

1

3.0mm

3.8mm

other mode

4.4mm

4.4mm

B

A

A

0.24 mm

B

1

2-5

0.32 mm

0.28 mm

0.36 mm

MODE

XBV

XCV

B

R

R

R

B

B

R

B

B

R 

H. AMP

H. TILT (TLH)

YCH

R 

B

B

R

YBH

R B

TLV

YCH

YBH

RV801

A board

APH

XBV

XCV

TLH

Protrusions

60°

ƒ

Fig. 1

Fig. 3

ƒ

Set so that the protruding 

     parts of the 2 magnet rings 
     agree with each other.

Purity

6-pole Mg

IBM AT Computer

as a Jig

1-690-391-21

1

D-sub

(9 Pin [female])

mini Din

(8Pin)

To BUS CONNECTOR

Run the service software and then follow the instruction.

•

•

(1) Receive an image of the white crosshatch signals (white

lines on black).

(2) Place the protrusions of the 6-fold poles magnet attached to

the CRT neck upon each other.

(3) Make rough adjustment of the H direction convergence by

using H. STAT VR (left side of the video block).

(4) Make a rough adjustment of the V direction convergence by

using “V. STAT”.

•

(1) 9300K

x = 0.283 

±

 0.008

y = 0.298 

±

 0.008

(2) 6500K

x = 0.313 

±

 0.008

y = 0.329 

±

 0.008

(3) 5000K

x = 0.346 

±

 0.008

y = 0.359 

±

 0.008

•

•

Adjust the focus volume 1 and 2 for the optimun focus.

FOCUS2

FOCUS1

FBT

– 31 –

D

A

M

G

L

H1

J

H2

GB

GA

RESISTOR

: RN

METAL FILM

: RC

SOLID

: FPRD

NONFLAMMABLE CARBON

: FUSE

NONFLAMMABLE FUSIBLE

: RW

NONFLAMMABLE WIREWOUND

: RS

NONFLAMMABLE METAL OXIDE

: RB

NONFLAMMABLE CEMENT

COIL

: LF-8L

MICRO INDUCTOR

CAPACITOR

: TA

TANTALUM

: PS

STYROL

: PP

POLYPROPYLENE

: PT

MYLAR

: MPS

METALIZED POLYESTER

: MPP

METALIZED POLYPROPYLENE

: ALB

BIPOLAR

: ALT

HIGH TEMPERATURE

: ALR

HIGH RIPPLE

HV Regulator
Circuit Check

HV Hold-Down
Circuit Check

Beam Current
Protector#1
Circuit Check

Beam Current
Protector#2
Circuit Check

Voltage of 3rd
winding of FBT

GB board

IC4202
• Mounted GB board

GB board

G board

D4220
• Mounted G board

GB board

G board

D4220,R4211,R4212,R4216,R4219
D4204,D4206
• Mounted G board

GB board

IC4202
• Mounted GB board

GB board

G board

R4222,R4223
• Mounted G board

GB board

G board

T4202(FBT)
• Mounted G board

• All capacitors are in 

µ

F unless otherwise noted. pF:  

µµ

F

50 V or less are not indicated except for electrolytic.

• Indication of resistance, which does not have one for rating

electrical power, is as follows.

Pitch: 5 mm

Rating electrical power 1/4 W (CHIP : 1/10 W)

• All resistors are in ohms.

•

: nonflammable resistor.

•

: fusible resistor.

•

¢

: internal component.

•

: panel designation, and adjustment for repair.

• All variable and adjustable resistors have characteristic curve B,

unless otherwise noted.

•

: earth-ground.

•

: earth-chassis.

• All voltages are in V.

• Readings are taken with a 10 M

Ω

 digital multimeter.

• Readings are taken with a color-bar signal input.

• Voltage variations may be noted due to normal production

tolerances.

•

*

: Can not be measured.

• Circled numbers are waveform references.

•

: B + bus.

•

: B – bus.

• When replacing components identified by 

, make the

necessary adjustments indicated. (See page 20)

• When replacing the part in below table, be sure to perfome the

related adjustment.

– 56 –

4

7-685-647-79

+BVTP 3X10

π

7-685-663-71

+BVTP 4X16

®

7-682-548-04

+–BV TAPPING SCREW M3X8

1

* X-4034-222-1 BEZEL ASSY (with logo mark)

2, 3

1

* X-4034-071-1 BEZEL ASSY (without logo mark)

2, 3

2

4-055-556-31 BUTTON, POWER

3

4-042-593-01 SPRING, COMPRESSION

4

* 8-933-217-00 CONTROL BLOCK BOARD

(H1 BOARD,COMPLETE)

5

4-029-432-01 SCREW (3X12), (+) BVWHTP

6

* 8-933-218-00 INPUT SW BOARD

(H2 BOARD, COMPLETE)

7

* 4-055-558-21 COVER, SLIDE SWITCH

8

* 8-933-230-00 M BOARD, COMPLETE

9

1-251-382-12 INLET, AC 3P(WITH NOISE FILTE)

10

4-052-345-01 SCREW, (3X8) (+K), TAPPING

11

* 4-055-730-11 LABEL, CONNECTOR

12

* 8-933-200-00 VIDEO AMP MCB ASSY

(A BOARD, COMPLETE)

13

1-900-215-90 CONNECTOR ASSY

14

* 1-777-729-31 CABLE, COAXIAL (B)

15

* 1-777-729-21 CABLE, COAXIAL (G)

16

* 1-777-729-11 CABLE, COAXIAL (R)

17

4-389-025-01 SCREW (M4) (EXT TOOTH WASHER)

18

4-381-962-11 SCREW (M4X8),TAPPING,(+-) (BV)

• Items marked " * " are not stocked since

they are seldom required for routine

service. Some delay should be

anticipated when ordering these items.

NOTE:

• Items with no part number and no

description are not stocked because they

are seldom required for routine service.

• The construction parts of an assembled

part are  indicated  with a collation number

in the remark column.

The components identified by shading 
and mark       are critical for safety. 
Replace only with part number specified.

I

Les composants identifiés per un tramé
et une marque     sont critiques pour la 
sécurité.  Ne les remplacer que par une 
piéce portant le numéro spécifié.

I

,

19

4-046-765-01 SCREW, TAPPING

20

* 8-933-213-00 DEFLECTION MCB ASSY

(D BLOCK ASSY)

21, 22

21

* 3-701-903-11 HOLDER, PC BOARD

22

* 4-382-848-01 HOLDER, PCB

23

X-4034-094-1 TRANSFORMER ASSY, FLYBACK

(NX-4202//J1D4)

24

* 3-703-141-00 HOLDER, PCB

25

4-382-854-11 SCREW (M3X10), P, SW (+)

26

* 8-933-220-00 POWER BLOCK MCB

(GA BOARD, COMPLETE)

27

* 8-933-221-00 POWER BLOCK MCB

(GB BOARD, COMPLETE)

28

* 8-933-219-00 POWER BLOCK ASSY

(G BLOCK ASSY)

21~27

29

* X-4034-379-1 COVER ASSY, TOP

30

* 4-055-731-01 SHIELD, VIDEO

31

* 4-055-559-31 CABINET

32

* 4-055-563-31 COVER (S), SCREW

33

* 4-055-562-31 COVER (T), SCREW

34

* 4-057-535-01 LABEL, INFORMATION

35

* 1-782-423-11 CABLE (13W3 DSUB CONNECTOR)

,

,

11

1

12

2

3

14

4

5

6

7

8

9

21

22

23

24

15

25

26

17

27

18

28

29

20

16

19

18

18

18

18

22

21

5

30

31

32

33

34

32

10

13

35