JVC AV28X10EIS, AV28X10EKS, AV28X10EUS, AV32X10EUS Service Manual

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SER VICE MANUAL

COLOUR TELEVISION

AV32X10EUS
AV28X10EUS
AV28X10EKS

V32X10EUS
V28X10EUS
V28X10EKS

V28X10EIS

BASIC CHASSIS

MF

CONTENTS

SPECIFICATIONS

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SAFETY PRECAUTIONS(EU)

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SAFETY PRECAUTIONS(EK/EI)

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FEATURES

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FUNCTIONS

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MAIN DIFFERENCE LIST

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SPECIFIC SERVICE INSTRUCTIONS

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SERVICE ADJUSTMENTS

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PARTS LIST

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★

OPERATING INSTRUCTIONS

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STANDARD CIRCUIT DIAGRAM

････････････････････････････････

････････････････････････････････ ････････････････････････････････

････････････････････････････････････････････････････････････････

････････････････････････････････

････････････････････････････････ ･････････････････････････････

････････････････････････････････････････････････････････････････

････････････････････････････････

････････････････････････････････ ････････････････････････････････

････････････････････････････････････････････････････････････････

････････････････････････････････

････････････････････････････････ ･･･････････････････････

････････････････････････････････････････････････････････････････

････････････････････････････････

････････････････････････････････ ･････････････････････

････････････････････････････････････････････････････････････････

････････････････････････････････

････････････････････････････････ ････････････････････････････････

････････････････････････････････････････････････････････････････

AV28X10EIS

･････････････････････････････

･･････････････････････････････････････････････････････････

････････････････････････････････

････････････････････････････････ ･･･････････････････

････････････････････････････････････････････････････････････････

････････････････････････････････

････････････････････････････････ ･････････････････

････････････････････････････････････････････････････････････････

････････････････････････････････ ･･･

････････････････････････････････････････････････････････････････

････････････････････････････････ ･･

････････････････････････････････････････････････････････････････

････････････････････････････････

････････････････････････････････ ･････････････

････････････････････････････････････････････････････････････････

････････････････････････････････ ････

････････････････････････････････････････････････････････････････

････････････････････････････････

････････････････････････････････ ････････････････

････････････････････････････････････････････････････････････････

･･･････････････････

･･････････････････････････････････････

･････････････････

･･････････････････････････････････

･･･

･･････

･･

････

･･･････････････････････

･･････････････････････････････････････････････

･････････････

･･････････････････････････

･････････････････････

･･････････････････････････････････････････

････････････････

････････････････････････････････

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COPYRIGHT © 2001 VICTOR COMPANY OF JAPAN, LTD.

No.51780
May. 2001

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V32X10EUS

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A

A

V28X10EUS
V28X10EKS
V28X10EIS

SPECIFICATIONS

Item

Dimensions ( W

Mass
TV RF System

Colour System
Stereo System
Teletext System

Receiving Frequency

Intermediate Frequency

Colour Sub Carrier Freq.

Power Input
Power Consumption

Aerial Input Term
Picture Tube

High Voltage

Speaker
Audio Output
EXT-1/EXT-2/EXT-3 (IN/OUT)
EXT-4 (Input)

××××H××××

D )

Content

AV32X1 0EUS / AV28X10EUS AV28X1 0EK S / AV 28 X10EIS

(32”) : 85.5cm×55.0cm×56.8cm
(28”) : 78.0cm×50.9cm×49.9cm 78.0cm×50.9cm×49.9cm
(32”) : 54.2kg / (28”) : 40.2kg 40.2kg

CCIR ( B/G, D/K, L, L’,I) CCIR ( I )
PAL / SECAM / NTSC (Only in EXT mode) PAL / NTSC (Only in EXT mode)

A2 (B/G, D/K) / NICAM (B/G, I, D/K, L) NICAM ( I )
Fastext (UK system) / TOP (German system)

WST(world standard system)

: 47MHz ～ 470MHz

VHF

: 470MHz ～ 862MHz

UHF

French cable TV channel of broadcast frequencies

!

116～172MHz & 220～469MHz

Carri er : 38.9MHz(B/G, D/K , I, L ) / 33.95MHz (L’)

VIF

Carrier : 33.4MHz(5.5MHz : B/G)

SIF

32.9MHz (6.0MH z : I )

32.4MHz(6.5MHz : L, D/K)

40.45MHz (6.5MHz : L’)

: 4.43MHz

PAL

: 4.40625MHz / 4.25MHz

SECAM

: 3.58MHz / 4.43MHz

NTSC

AC 220V～240V , 50Hz

189W(Max)

(32")

140W(Avg)

75Ωunbalanced, Coaxial
(32”) : Viewable area 76cm ( measured diagonally)
(28”) : Viewable area 66cm ( measured diagonally) Viewable area 66cm ( measured diagonally)

+

31.0kV (at zero beam current)
16cm×4cm, Oval type×2

7.5W + 7.5W
21-pin Euro connector (SCART socket)×3

Video
Audio(L/R)

S / Video

1.0kV

-1.5kV

: Vp-p 75Ω(RCA pin j ac k)

: 500mVrms(-4dBs), High Impedance (RCA pin jack)

Y : 1Vp-p POSITIVE (Negative sync Provided, when terminated with 75Ω)
C : 0.3Vp-p (Burst signal, when terminated with 75Ω)

(28”)

183W(Max)
127W(Avg)

Fastext (UK system)
WST(world standard system)

: 47MHz ～ 470MHz ( EI model )

VHF

: 470MHz ～ 862MHz ( EK / EI model )

UHF

Carrier : 38.9MHz

VIF

Carrier : 32.9MHz (6.0MHz )

SIF

: 4.43MHz

PAL

: 3.58MHz / 4.43MHz

NTSC

183W ( Max) , 127W( Avg)

AUDIO OUT (Variable)
Headphone jack

Remote Control Unit

0～1Vrms, Low Impedance (R CA pin jack×2)
Stereo mini jack (φ3.5mm )
RM-C54 (AAA/R03 dry cell battery×2) RM -C55 (AAA/R03 dry cell battery×2)

Design & specifications are subject to change without notice

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No.51780

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21-pin Euro connector (SCART socket) : EXT-1 / EXT-2 / EXT-3

(P-P= Peak to Peak, B -W= Bl ank ing to white peak)

V32X10EUS
V28X10EUS
V28X10EKS

V28X10EIS

Pin
No.

Signal Designation Matching Value EXT-1 EXT-2 EXT-3

1 AUDIO R output 500mVrms(Nominal),

Low impedance

2 AUDIO R input 500mVrms(Nominal),

High impedance

3 AUDIO L output 500mVrms(Nominal),

Low impedance

4 AUDIO GND
5 GND (B)
6 AUDIO L input 500mVrms(Nominal),

High impedance

7B input
8 FUNCTON SW

(SLOW SW)

9 GND (G)
10 SCL3 NC
11 G input
12 SDA3 NC
13 GND (R)
14 GND (YS)
15 R / C input

16 Ys input
17 GND(VIDEO output)
18 GND(VIDEO input)
19 VIDEO out pu t

20 VIDEO / Y input
21 COMMON GND

700mV
Low : 0-3V, High : 8-12V, High

impedance

700mV

R : 700mV
C : 300mV
Low : 0 - 0.4, High : 1 - 3V, 75

1V

1V

, 75

Ω○○

B-W

, 75

Ω○○

B-W

, 75

Ω

B-W

, 75

Ω

P-P

(Neg ati ve g oin g s ync ) , 75

P-P

(Neg ati ve g oin g s ync ) , 75

P-P

Ω○ ○

Ω○

Ω○ ○ ○

(TV OUT)

(TV OUT)

(only R)

(TV)

○

○○○

○

○○○

○○○

○○○

○○○

○○○

○○○

○○

○

○○○

○○○

○○○

○

(LINE OUT)

○

(LINE OUT)

○

○

○○

○

(LINE OUT)

NC

NC

NC

NC
NC
NC

NC

(only C)

NC

NC

Pin assignment

[

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No.51780

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V32X10EUS

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V28X10EUS

SAFETY PRECAUTIONS

AV32X10EUS / AV28X10EUS

1. The design of this product contains special hardware, many
circuits and components specially for safety purposes. For
continued protection, no changes should be made to the original
design unless authorized in writing by the manufacturer.
Replacement parts must be identical to those used in the original
circuits. Service should be performed by qualified personnel
only.

2. Alterations of the design or circuitry of the products should not be
made. Any design alterations or additions will void the
manuf act urer's warr an t y and wil l fur t h er reli ev e t h e manufacturer
of responsi bility f or person al injury or pr operty dam age res ulting
therefrom.

3. Many electrical and mechanical parts in the products have
special safety-related characteristics. These char acteristics are
often not evident f rom visual i nspection nor can t he protect ion
afford ed by them n ecess arily be obt ained by using rep lacem ent
compon ents rated f or higher voltag e, watt ag e, etc. R epl acem ent
parts which have these special safety characteristics are
identified in the parts list of Service manual.

compon ents hav in g su ch feat ures are id entif ied by s hadin g
on the sche matics and by (
manual.

have the same safety characteristics as the recommended
replac ement part shown i n the p arts list of S ervic e manu al may
cause shock, fire, or other hazards.

The us e of a subst itute replacement which does n ot

) on the parts list in Service

!!!!

Electrical

4.

Don't short b etween the LIV E side groun d and ISOLATED
(NEUTRAL) side ground or EARTH side ground when
repairing.

Some model's power circuit is partly different in the GND. The
difference of the GN D is sh ow n b y t h e LI V E : (") side GND, the
ISOLATED(NEUTRAL ) : (#) side GND and EARTH : ($) side
GND. Don't short between the LIVE side GND and
ISOLATED(NEUTRAL) side GND or EARTH side GND and
never meas ure with a measuri ng apparatus (osc illoscope etc .)
the LIVE side GND and ISOLATED(NEUTRAL) side GND or
EARTH side GND at the same time.
If above not e wi ll n ot be kept, a fuse or any parts w ill be br oken.

5. If any repair has been made to the chassis, it is recommended
that the B1 setting should be checked or adjusted (See
ADJUSTMENT OF B1 POWER SUPPLY).

6. The hig h voltage app lied t o the picture t ube must c onform wit h
that specified in Service manual. Excessive high voltage can
cause an increase in X-Ray emission, arcing and possible
component damage, therefore operation under excessive high
voltag e conditions s hould b e kept to a mi nimum, or sh ould be
prevented. If severe arcing occurs, remove the AC power
immediately and determine the cause by visual inspection
(incorrect install ation, crack ed or melted high volt age harness,
poor solderi ng, etc.). To maintain the pr oper minimum level of
soft X-Ray emission, components in the high voltage circuitry
including the picture tube must be the exact replacements or
alternatives approved by the manufacturer of the complete
product.

7. Do not check high voltage by drawing an arc. Use a high voltage
meter or a high voltage probe with a VTVM. Discharge the
pictur e tube bef ore attempting met er connect ion, by connecting
a clip l ead to th e g roun d fr am e and c on necti ng t h e oth er end of
the lead through a 10k" 2W resistor t o the an ode button .

8. W hen servic e is requir ed, obser ve the origin al lead dress . Extr a
precaut ion shou ld be gi ven to assure c orrect l ead dr ess in t he
high voltage circuit area. Where a short circuit has occurred,
those comp onents that in dicat e evidenc e of over heating should
be replaced. Always use the manufacturer's replacement
components.

9.

Isolation Check
(Saf ety for Electrical Shock Hazard)

After re-assembling the product, always perform an isolation
check on the exposed metal parts of the cabinet (antenna
termin als , vid eo/ au dio input and output term inals, Con trol knobs,
metal c abinet, s crewhead s, earph one j ack, contr ol shafts, etc.)
to be sure the product is safe to operate without danger of
electrical shock.

(1)

Dielectric Stren gt h Test

The isol ation b etween th e AC pr imar y circuit and all metal parts
expos ed t o th e user, p ar tic u larly any exp osed metal part h avi ng a
return p ath to the chassis should withst and a voltage of 3000V
AC (r.m.s .) for a period of on e s ec on d.

(. . . . W ithstand a voltag e of 1100 V AC ( r.m.s.) to an applianc e

rated up t o 120V, and 3000 V AC (r. m.s.) t o an appl iance r ated
200V or mor e, f or a peri od of on e s ec on d.)
This method of test requires a test equipment not generally found
in the service trade.

(2)

Leak age Current Check

Plug the AC lin e c or d dir ec t l y int o t he AC outlet ( d o not use a line
isolation transformer during this check.). Using a "Leakage
Current Tester", measure the leakage current from each exposed
metal part of the cabinet, particularly any exposed metal part
having a return path to the chassis, to a known good earth
ground ( water pipe, etc. ). An y leak age c urr ent mus t not exceed

0.5mA AC (r.m.s.).
However, in tropical area, this must not exceed 0.2mA AC
(r.m.s.).

Alternate Check Method

""""

Plug the AC lin e c or d dir ec t l y int o t he AC outlet ( d o not use a line
isolati on transform er during t his check. ). Use an AC voltmet er
having 1000 ohms per volt or more sensitivity in the following
manner. Connect a 1 500" 10W resistor paralleled by a 0.15#F
AC-typ e capacitor betw een an expos ed metal part and a know n
good earth ground (water pipe, etc.). Measure the AC voltage
across the resistor with the AC voltmeter. Move the resistor
connect ion t o each exp os ed met al p art, part icul arl y any exp osed
metal part h avin g a return p ath to th e chassis , and meas ure th e
AC voltag e across the res istor. N ow, re vers e the plug in the AC
outlet and repeat each measurement. Any voltage measured
must not exceed 0.75V AC (r.m.s.). This corresponds to 0.5mA
AC (r.m.s.).
However , i n t ropical area, this m us t not exc eed 0.3V AC ( r . m.s . ).
This corresponds to 0.2mA AC (r.m.s.).

0.15μF AC-TYPE

1500

GOOD EARTH GROUND

"

AC VOLTMETER
(HAVING 1000
OR MORE SENSITIVITY)

10W

"

/V,

PLACE THIS PROBE
ON EACH EXPOSED
METAL PART

4

No.51780

A

V28X10EKS

A

V28X10EIS

SAFETY PRECAUTIONS

1. T he design of this produc t cont ains speci al hard ware and m any
circuits and components specially for safety purposes. For
continued protection, no changes should be made to the original
design unless authorized in writing by the manufacturer.
Replacement parts must be identical to those used in the original
circuits. Service should be performed by qualified personnel
only.

2. Alterations of the desi g n or c ir c ui try of th e product s h ould not be
made. Any design alterations or additions will void the
manuf act urer's warr an t y and wil l fur t h er reli ev e t h e manufacturer
of responsi bility f or person al injury or pr operty dam age res ulting
therefrom.

3. Many electrical and mechanical parts in the product have special
safety-related characteristics. These characteristics are often not
evident from visu al ins pec tion n or can th e protect i on aff orded by
them nec essar y be obtain ed by usi ng repl acemen t comp onent s
rated for hi gher volt age, wattag e, etc. R eplacem ent parts whic h

4. The leads in the products are routed and dressed with ties,

AV2 8X10E KS / AV28X10EIS

have these special safety characteristics are identified in the
Parts List of S er vice Man u al. E l ec tr ical comp on en ts having s uch
features ar e i d entified by shad in g on the sc h em ati c s an d b y (!)
on the P arts Lis t in th e Ser vic e Man ual. Th e us e of a subst itu te
replacement which does not have the same safety
charact erist ics as the rec omm ended r eplacem ent par t shown in
the Par ts L i s t of Service Manual may c ause shoc k, fire, or oth er
hazards.

clamps, tubing’s , bar riers and the like to b e separ ated fr om li ve
parts, high temperature parts, moving parts and / or sharp edges
for the prevention of electric shock and fire hazard. When
servic e is r eq uired, t h e original l ead routi ng and dress sh ou ld b e
observed, and it should be confirmed that they have been
return ed t o nor m al , after re-assembli ng.

WARNING

1. The equipment has been designed and manufactured to meet international safety standards.

2. It is the legal responsibility of the repairer to ensure that these safety standards are maintained.

3. Repairs must be made in accordance with the relevant safety standards.

4. It is essential that safety critical components are replaced by approved parts.

5. If mains voltage selector is provided, check setting for local voltage.

No.51780

5

A

V32X10EUS

A

A

A

V28X10EUS
V28X10EKS
V28X10EIS

FEATURES

New chassis design enable use of an interactive on screen

"

control.

The TELETEXT SYSTE M has a built-i n FAST EXT ( UK s ystem),

"

TOP (German system) and WST (world standard system)
system.

Pure FLAT CRT reproduce fine textured.

"

Digi Pure pro : Auto digi pure with motion picture compensation.

"

B ecause this TV uni t corresp onds t o multipl ex broadc ast, us ers

"

can enjo y music pr ograms an d spor ting ev ents wit h live real ism.
In additi on, BILINGUAL programs c an be heard in their original
language.

Built-in ECO (ECONOMY, ECOLOGY) MODE.

"

In accordance with the brightness in a room, the brightness
and/or contrast of the picture can be adjusted automatic ally to
make th e opti mu m pictur e whic h is eas y on t h e ey e.

TV EXT-1 EXT-3

Users can make VCR dubbing of picture and sound by controlling

"

the AV select or to sel ect an opti onal sour ce at the E XT-2 output
shown in figure.

EXT-4

FUNCTIONS

(FRONT)

1 42 5 6 7 8 9 10 113

EXT-4 (INPUT) terminals

①

Headphone jack (mini jack)

②

(Volume) button

③

Function (P∨/∧ buttons / -/+ buttons )

④

EXT-2

Remote control sensor

⑤

ECO sensor

⑥

Hyper Sound lamp

⑦

ECO lamp

⑧

Sleep tim er lam p

⑨

Power lamp

⑩

Main power button

⑪

6

No. 51780

A

V32X10EUS

A

A

A

V28X10EUS
V28X10EKS

V28X10EIS

(REAR PANEL) (REMOTE CONTROL UNIT )

32

5

1

EXT-1(IN/OUT) Terminal

①

EXT-2(IN/OUT) Terminal

②

EXT-3(IN/OUT) Terminal

③

Aerial Socket

④

Audio out put termin al

⑤

4

1

2

3
4

5

6

7

Muting K e y

①

Number Key

②

ZOOM Key

③

Hyper Sound Key

④

Information Key

⑤

TV Key

⑥

Volume -/+ Key

⑦

8

9

13

Standby (power) Key

⑧

Colour K ey

⑨

TEX T Key

⑩

K/MENU Key

⑪

PR Channel ∨/∧Key

⑫

FUNCTION ( / / P∧/ P∨) Key

⑬

10
11

12

+ -

MAIN DIFFERENCE LIST

!!!!

MAIN PWB SMF-1006A-U2 SMF-1007A-U2 SMF-1903A-U2
POWER & DEF. PWB SMF-2002A-U2 SNF-2003A-U2
FRONT CONTROL PWB SMF-8006A-U2 SMF-8004A-U2
CRT SOCKET PWB SMF-3003A-U2 SMF-3004A-U2
PICTURE TUBE (V01) W76ERF041X044 W66QDE891XA25

!

DEG COIL (L01) QQW0066-001 QQW0101-001

!

ROTATION COIL (L03) CELD904-001

!

FBT (SERVICE) QQH0091-002-I2 QQH0091-003-I2

!

POWER CORD QMPK160-185-JC QMPN130-185-JC

!

FRONT CABINET ASS’Y LC10376-012A-U LC10662-009B-U

!

REAR COVER LC10378-004A-U LC10664-003A-U

!

RATING LABEL

!

PACKING CASE AM1002-070-E AEM1002-A68-E
CUSHION ASS’Y LC10384-002C-U LC10722-002A-U
EURO LABEL AEM1039-090-E AEM1039-091-E
REMOTE CONTROL UNIT RM-C54-1C RM-C55-1C

INST BOOK

!

S. DIAGRAM 2832X10EUS-HSAE
X-RAY CARD AEM1059-001A-E AEM1057-001A-E
REG. SHEET AEM3148-001-E

Model name

AV32X10EUS AV 28X10EUS AV28X10EIS AV28X10EKS

LC20380-010A-U
LC20079-010A-U

LCT0887-001A-U
LCT0888-001A-U
LCT0889-001A-U

LC20380-009A-U
LC20379-009A-U

LC20080-013A-U LC20091-021A-U

LCT0893-001A-U

No. 51780

7

A

V32X10EUS

A

A

A

A

V28X10EUS
V28X10EKS
V28X10EIS

SPECIFIC SERVICE INSTRUCTIONS

DISASSEMBLY PROCEDURE

REMOVING THE REAR COVER

1. Unplug the power cord.

2.

[32inch]

Remove the 13 screws marked

[28inch]

Remove the 12 screws marked

3. Withdraw the rear cover toward you.

as shown in the Fig. 1.

!!!!

as shown in the Fig. 1.

!!!!

REMOVING THE AV TERMINAL BOARD

After removing the rear cover.

"

1. Remove the 3 screws marked

2. Remove the 2 c laws m ark ed
in Fig. 2.

3. Remove th e AV TERMIN AL BOARD slig htly in the direc tion of
arrow

as shown in Fig. 2.

$$$$

as shown in the Fig. 1.

""""

under the CHASSIS as shown

####

REMOVING THE CHASSIS

After removing the rear cover.

"

1. Slightl y rais e th e bot h sid es of th e ch assis b y h an d and rem ove
the 2 claws under the both sides of the chassis from the front
cabinet.

2. Withdraw the chassis backward.
(If necessary, take off the wire clamp , connectors etc.)

CHECKING THE PW BOARD

To check the back side of the PW Board.

1) Pull out the chassis. (Refer to REMOVING THE CHASSIS).

2) Erect t he ch assis vertic ally s o that you c an easi ly ch eck th e
back side of the PW Board.

[CAUTION]

When erecting the chassis, be careful so that there will be no

"

co n tac ting w i th oth er PW Board.

Before turning on power, make sure that the wire connector is

"

properly connected.

When conducting a check with power supplied, be sure to confirm

"

that the CRT EARTH WIRE (BRAID ED ASS’Y) is conn ected to
the CRT SOCKET PW board.

WIRE CLAMPING AND CABLE TYING

1. Be sure to clamp the wire.

2. Never remove the cable tie used for tying the wires together.
Should it be inad ver tent l y remov ed, b e sur e to ti e th e wir es with
a new cable tie.

F

V TERMINAL

BOARD

AV SW PWB

REMOVING THE SPEAKER

After removing the rear cover.

"

1. Remove the 2 screws marked
: When removing the screws marked

NOTE

remove the lower side screw first, and then remove the
upper one.

2. Remove the 2 screws

3. Follow the same steps when removing the other hand speaker.

&&&&

as shown in Fig. 1.

%%%%

%%%%

attaching the speaker.

of the speaker

E

E

Fig. 2

8

No.51780

A

A

A

A

A

This exploded view describes about the AV32X10EUS (32inch).

*

Although the 28inc h is slig htly differ en t f r om t his figure, you can use the e xp loded view for disassemb li ng the 28inch
in the same step as for this one.

D

FRONT CABINET

SPEAKER

C

CRT
SOCKET
PWB

FRONT
CONTROL
PWB (L)

V32X10EUS
V28X10EUS
V28X10EKS

V28X10EIS

D

FRONT
CONTROL
PWB (R)

SPEAKER

C

CONTROL
BASE

MAIN PWB

CLAW

V SW PWB

REAR COVER

CONTROL
BASE

MICON

PWB

100Hz

PWB

POWER & DEF
PWB

CLAW

CHASSIS

AV TERMINAL
BOARD

B

(×3)

POWER CORD

(×13)

A

Fig.

1

No.51780

9

A

V32X10EUS

A

A

A

A

A
A

A

A

V28X10EUS
V28X10EKS
V28X10EIS

REMOVING THE CRT

Replacement of the CRT should be performed by 2 or more

$

persons.

After removing the cover, chassis etc.,

!

1. Putting the CRT change table on soft cloth, the CRT change table

should also be covered with such soft cloth (shown in Fig.3).

2. While keeping the surface of CRT down, mount the TV set on the

CRT change table balanced will as shown in Fig.4.

3. Remove 4 scr ews m ar k ed b y arrows with a b ox type scr ew driver

as shown in Fig.4.

Since the cabinet will dr op w h en s c rews h av e b een removed , be

!

sure to support the cabinet with hands.

4. After 4 sc rews have been removed, put the cabinet s lowly on

cloth (At this time, be carefully so as not to damage the front
surface of the cabinet) shown in Fig.5.

The CRT should be assembled according to the opposite

!

sequence of its dism oun t i ng st eps .

T he CRT ch ang e t ab l e shoul d preferab l y be smal l er th at th e CRT

$

surfac e, and its height be about 35c m. (Fig.3)

About CRT Spacer (Fig.4)

$

An appropriat e CR T s pacer sh ould b e used in th e corr es p on di ng
CRT in accordance with the type o f th e CRT.
When a CRT is repl ac ed, s peci al att enti on s houl d be p aid to t his
matter.

CRT CHANGE TABLE

PPROX.

35cm

CLOTH

Fig. 3

COAT ING OF SILICON GREASE FO R ELECTRICAL
INSULATION ON THE CRT ANODE CAP SECTION.

Subs equent t o repl acement of the CRT and HV tr ansf ormer or

!

repair of the anode c ap, etc. by dismounting them, be sure to
coat silicon grease for electrical insulation as sh ow n in Fi g.6.
Wipe around the anode button with clean and dry cloth. (Fig.6)
Coat sil icon gr eas e on t he s ection arou nd the anod e but ton. A t
this ti me, t ak e c are s o th at an y si lic on gr eas es d os e not s tic k to
the anode button. (Fig.7)

Silicon grease product No. KS - 650N

★★★★

CRT

Silicon gr ease

node button

coating

CABINET

pprox.
20mm (Do not
coat grease on
this section

node button
(No sticking of
silicon grease)

Fig. 4

CRT

CRT
CHANGE TABLE

Fig. 5

Silicon gr ease
should b e c oat ed
by 5mm or mor e
from the outside
diamet er of
anode cap.

Coating position
of silicon grease

node cap

Fig. 6 Fig. 7

10

No. 51780