JVC AV-21BF11 Schematic

S

S

S

SERVICE MANUAL

COLOUR TELEVISION

AV-21BF11ENS
AV-21BF11EES

AV-21BF11ENS

AV-21BF11EE
AV-21BF11EP

AV-21BF11EJ

AV-21BF11EPS
AV-21BF11EJS

CONTENTS

!

SPECIFICATIONS

! SAFETY PRECAUT IONS ･･････････････
!

FEATURES

!

MAIN DIFFERENCE LIST ･･････････････

1

･･････････････････････････

･･････････････････････････

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

････････････････････

････････････････････

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

･･････････････4

････････････････････････････

･･････････････5

････････････････････････････

COPYRIGHT © 2002 VICTOR COMPANY OF JAPAN, LTD.

2

5

!

SPECIFIC SERVICE INSTRUCTIONS

! SERVICE ADJUSTMENTS････････････
!

PARTS LIST

★

OPERATING INSTRUCTIONS

★

STAND ARD CIRCUIT DIAGRAM

･･･････････････････････

･･･････････････････････

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

････････････ 11

････････････････････････

････

････

････････

･･･････

･･･････

･･････････････

No.520 55
Jul. 200 2

6

21

2- 1

A

V-21BF11ENS

A

A

A

V-21BF11EES
V-21BF11EPS
V-21BF11EJS

SPECIFICATIONS

Item

Dimensions ( W××××H××××D ) 60 0m m× 4 48mm×4 76mm

Mass 22 .2 kg

TV RF System B/G B/G , D/K , K1 B/G , L/L ’ I/I ’

TV Mode PAL PAL / SEC AM PA L / SE C AM PA LColour Syst em

Video Mode PA L / SE C AM / N TSC 3 .58 / NTSC 4 .43 (EES/E PS M ODEL)

Sound System German + NICAM

Teletext System Fast ext / Topte xt

Receiving Frequency

VHF (VL) 46.25 MHz ～ 1 68. 25MHz

(VH) 17 5.25MH z ～ 46 3.2 5MHz

UHF 47 1.2 5MHz ～ 86 3.2 5MHz

CATV S01 - S4 1 & S75-S79

Intermediate Fr equency

VIF Carrier 38 .9 MHz ( B/G , D /K , L , I ) / 3 3.9MHz( L’)

SIF C ar rier 33.4 MHz (5 .5MHz:B/G) / 32. 9MHz (6.0MHz:D/K , I ) / 32.4MHz ( 6. 5MHz: L) / 40.4MHz (6.5MHz:L’)

Colour Sub Carrier Freq.

PAL 4.43MHz

SE CAM 4.43MHz

NT S C 3.58MHz / 4.43MHz

Power Input AC 2 20V ～240V , 50Hz

Power Consumption 85W (Max) ,2 .5W(Standby)

Aerial Input Term 75 Ωun ba lanc ed, C oax ial

Pictur e Tube Size Visi bl e size : 51cm, M eas ured dia gon ally

Hi gh Vo l t ag e 27 .7 kV

Speake r 5.7 cm×16cm Oval type ×2

Au dio Output 6.5 W×2

Input

Output

Input Terminal

Remote Control Unit VE -3 00 17763 (R M-C 1100), (A A/R0 6 dry b atter y×2)

Vide o 1Vp- p, 75

S/V ideo Y : 1Vp- p Pos it i ve

Au di o ( L/ R) 500mVr ms, Hi gh Imped an ce

Vide o 1Vp- p 7 5Ω

Au di o ( L/ R) 500mVr ms, Low Impe da nce

Rear Sid e AV 1 (Vi d eo/Aud i o/R GB)

Front Side AV 3 ( Vi d eo/Aud i o)

Front Side H eadph on e jac k (S ter e o mi ni jack 3.5 φ)Output Terminal

Rear Sid e AV 1 (Vi d eo/Aud i o)

AV-21BF11ENS AV-21BF11EES AV-21BF11EPS AV-21BF11EJS

PAL / NTSC 3 .58 / NTSC 4 .43 (ENS/ EJS MODEL)

Ω

C : 0 .2 86Vp-p

AV 2 (Vid eo/A udio/S-VHS)

AV 2 (Vi d eo/A ud io) (S el ect ed T V,A V1 or AV3)

Content

De sign & speci f icatio ns ar e su bje ct to cha ng e wi thout no t ice.

2

No.52055

A

A

S

A

S

A

■■■■21-pin Euro connector (SCART socket) : AV-1 / AV-2

(P-P= Peak to Peak, S-W= Sync tip to white peak, B-W= Blanking to white peak)

V-21BF11ENS

V-21BF11EE
V-21BF11EP

V-21BF11EJS

Pin No.

1

2

3

4

5 GND (B) ○○

6

7

8

9 GND (G) ○○

10 SCL3 NC NC

11

12 SDA3 NC NC

13

14

15

16 Ys input Low : 0 - 0.4, High : 1 - 3V, 75Ω○ NC

17

18

19

20

21

AUDIO R o utput 50 0m Vr ms(Nomina l) ,

AUDIO R i n put 50 0m Vr ms(Nomina l) ,

AUDIO L outp ut 50 0m Vr ms(Nomina l),

AUDIO G ND ○○

AUDIO L input 500mVrms(Nominal),

B in pu t

FUNCTION SW

(SLOW SW)

G in put

GND (R)

GND (YS) ○○

R / C input

GND(V IDEO output)

GND(V IDEO input) ○○

VIDEO ou tpu t

VIDEO / Y input

COM MON G ND ○○

Signal Designation Matching Value AV-1

○

Low impedance

High i m pe danc e

Low impedance

High i m pe danc e

70 0m V

Low : 0-3V, High : 8-12V, High
impedance

70 0m V

R : 700mV

C : 300mV

1V

P- P

1V

P- P

Ω○NC

, 75

B- W

, 75Ω○

B- W

Ω

, 75

B- W

, 75Ω

P- P

(Nega ti ve g oi n g s ync ), 75

(Nega ti ve g oi n g s ync ), 75

Ω○

Ω○ ○

(TV OUT)

○○

○

(TV OUT)

○○

○○

○○

○

(only R )

○○

(TV)

AV - 2222

○

○

NC

○

○

[Pin assignment]

No.52055

3

A

V-21BF11ENS

A

A

A

V-21BF11EES
V-21BF11EPS
V-21BF11EJS

SAFETY PRECAUTIONS

1. T he des i gn of th is pr od uc t c on ta in s sp ecial hard ware , ma ny
circuit s and components specially for saf ety purposes. For
con tinu ed pr ot ecti on , n o chan g es sh ould b e ma de to the o rig i nal
d esign un less a uth or ized in writi n g by th e manu fac t urer .

Replacem ent p arts m ust b e i d entic al to thos e u sed in th e or i gi n al
ci rcu its. Se r v ic e s h ou ld be pe rf or me d b y qua lifi e d per s o nn el
on ly.

2. Al te rati on s of the desig n or cir cuitry of t he prod uc ts sh ould not be
made. Any design alterations or additions will void the
manu fac t urer 's warra nt y and will f urth er r el i eve t he ma nufac tu rer
of r esp onsib ili ty for per s o na l injury or pr operty d am ag e res ul t ing
th erefr om.

3. M an y el ectr i cal an d mech anic a l p ar ts i n th e pr od uc ts ha v e
special safety-related chara cteristics. T hese characteristics are
oft en no t e vi den t f r om v i sua l insp ecti on nor ca n t he pro tect io n
aff orde d by th em nece ssarily be ob tain ed b y u s in g r ep l ac em en t
com po nents rated for hig he r vo l tag e, watt age, etc . R ep lac em en t
p arts whic h have th ese sp ecial s afet y ch ar act erist ics ar e

ide ntified in the parts list of Ser vic e manua l. El ectric al

components having such features are ide ntified by shading
on the sche mat ic s and b y (!!!! ) on the parts list in Service
manual. The us e of a sub sti tu te r ep lac em en t which do es n ot

h ave th e sam e s af ety c h ar ac t erist ics as t he reco mmen ded
replac ement par t sh ow n i n th e parts list of Ser v i ce man ual m ay

cause shock, fire, or other hazards.

4. Don't s hor t between the LIVE side ground and ISOLATED

(NE UTRAL) s ide ground or EARTH side ground when
repairing.

Some model's power circuit is partly different in the GND. T he
diff erenc e of th e GND is sh ow n by t he LIVE : (") side GN D, the
ISO LATE D(N EU TR AL) : ( #) side GN D an d EA RTH : ($) side
GND. Don't short between the LIVE side GND and

ISO LATE D(N EU TR AL) si de GND or EAR TH sid e GN D an d
n ever mea sure w it h a mea sur i ng a ppa r atus ( osci l lo scop e etc.)
th e LI VE sid e GN D an d IS OL ATED(NEUTR AL ) s id e GN D or
EARTH sid e GND at the s ame time.
If above not e will not be kept, a fuse or any parts will be broken.

5. If any repair has been made to the chassis, it is recommended
th at t he B1 set ting shou l d b e c h ec ked or adju ste d ( Se e
ADJUSTM ENT OF B 1 POW E R SUPPLY).

6. The high vol ta ge app lie d t o th e pi ctu r e tu be mu s t c on form wit h
th at sp ecifi ed i n S ervi ce man ual . E xc essi ve h i gh volt ag e c a n

cau se an i ncr e ase i n X- R ay em iss i on , arci ng an d possi b le
component damage, therefore operation under excessive high
voltage conditions should be kept to a minimum, or should be
preve nt ed. If s ever e arc ing occur s, r emov e t he AC power

immed iate l y and de ter m i ne th e ca us e b y vi sua l insp ec t ion
(incor r ec t in stal lat i on, cr ac ke d or melte d hi gh v o lt age harn ess,
p oor so ld er ing, et c.) . T o m ai nt ain the prope r mi n imu m le vel of
sof t X- R ay em iss i on, c omp on en ts i n th e hi gh voltag e c i r cuitr y
incl ud i ng t he pict ure tu be must b e t he e xact r ep l acem e nts or

alte rn at ives ap pr ove d b y th e manuf ac t urer of th e c omplet e
prod uct.

7. Do n ot c hec k high volt ag e by dr aw ing an arc. Use a hi gh volt age
meter or a hig h v oltag e pr ob e wit h a VT V M. Dis charg e the
picture tube before attempting meter connection, by connecting

a cl i p le ad to th e gr ou nd f rame a nd c onn ecti n g th e oth er end of
the lead through a 10kΩ 2W resi s to r to the an ode b utt on .

8. When service is r equ ire d, ob serve the or igina l lea d dr ess. E x tr a
prec aut i on sh ou ld b e given t o assur e cor r ect l ea d dress in th e
high vol tag e circui t a rea. W her e a s hor t c i r cuit h as occ u rr e d,
th ose co mpon ent s tha t indica te evide nce of ove r hea ting should

b e r e place d. A lways u s e th e manuf act ur er 's rep lacem ent
components.

9. Isolation Check

(Safety for Electrical Shock Hazard)

Af ter r e- ass embl in g th e p r odu ct, always per f orm an i solat io n
ch eck on the expo s ed me tal p ar ts of t he cabin et ( a nte nn a

ter m i na ls, vid eo /au dio i npu t and outpu t t ermi n al s, C on trol kn obs,
metal cabinet, screwheads, earphone jack, control shafts, etc.)
to be su re th e p r odu ct is s af e t o o pe rate with ou t d an ger of
elect rical shoc k.

(1) Dielectric Strength Test

The iso lation be tw een the AC pr im a ry ci rcu it an d al l me tal p arts
exp osed t o the us er, p ar ticular ly an y e xpos ed met al p art having a
retu rn p ath to t he c hass is sho uld withs tan d a vol t age of 3000 V
AC (r.m. s.) for a period of one second.

(. . . . W it hstan d a v o lt age of 110 0V A C (r .m. s.) t o an ap pli anc e

rate d up to 12 0V , an d 3 00 0V AC ( r.m. s.) to an ap pl i an c e r at ed
200V or more, for a period of one second.)
This meth od of test r equi res a test equipment n ot g enerall y fou nd
in t he serv ic e trad e.

(2) Leakage Current Check

Plug th e AC l in e c ord d irect ly into the A C ou tlet ( d o not use a lin e
isol ati o n transf orm er du r ing this ch eck.). U sin g a " Lea kag e

Current T este r", me as ur e th e l ea k ag e cu rr e nt f rom eac h ex p os ed
metal p ar t of the cabine t, p art icu lar ly any e x pos ed me tal p art
h aving a re turn pa th to the ch assis , to a kn own go od ea rt h
grou nd (w a ter pip e, e tc.). An y l eaka ge c ur r en t must n ot e xceed

0.5mA AC (r.m.s.).
Howev e r, in trop ic al ar ea , th is mu st no t ex ce ed 0.2 mA AC
(r.m.s.).

"""" Alte rn at e Che ck M et hod

Plug th e AC l in e c ord d irect ly into the A C ou tlet ( d o not use a lin e
isol ati o n tran sfor m er dur i ng this c he c k.). Use an AC vo lt meter

h aving 1 00 0 oh ms pe r vol t or mor e s ens it i vity i n th e fo llowi ng
mann er . C on nec t a 1 50 0Ω 10W res ist or para lle led b y a 0 .1 5µF

AC-type c apa cit or bet ween an expo sed met al pa rt and a kno wn
g ood e ar th gr o und (water pi pe , etc.) . M eas ur e th e A C volt ag e
acr os s th e res ist or wi th th e AC vo l tm eter. Move th e r es i stor
con nec tion to e ach exp ose d me tal part, p art i cularly any exp osed

metal p ar t havi n g a r etu rn pat h to the ch assis, and m easu r e th e
AC vol tag e ac ros s the res ist or. No w , re v er se th e pl u g in th e AC
ou tl et and re pe at eac h mea suremen t. An y vol t ag e me asu re d
must no t e xc eed 0 .7 5V AC (r.m. s.) . This c orre spo nds to 0 .5mA
AC (r.m. s.).

Howeve r, in tropica l area, this must n ot exce ed 0 .3V AC ( r .m.s.).
This corresponds to 0.2mA AC (r.m.s.).

AC VOLT MET ER
(HAVING 1000 Ω /V,
OR MOR E SENSIT IVITY)

0.15μF AC-T YPE

PLACE THIS PROBE

1500 Ω 10W

GOOD EARTH GROUND

ON E A C H EX PO SE D
ME T AL PA RT

4

No.52055

A

A

S

A

S

A

FEATURES

V-21BF11ENS

V-21BF11EE
V-21BF11EP

V-21BF11EJS

1. It is a remote controlled color television.

2. 10 0 pr og r am s fr om VHF , UH F b an ds or cab l e ch ann el s can be

pres et.

3. It c an tun e c abl e c ha nn els.

4. Cont ro l lin g th e TV i s ver y easy by its men u driven s yst em .

5. It h as two Eu r oc on n ector s ockets for exte rnal de vice (suc h as
vi de o reco rder , vid eo games , a udi o set, etc.)

6. Front AV In put ava ilable.

7. St ereo s ound s ys tems ( Ger m an + N ic am) ar e a v ailab l e.

8. Full functio n Teletext (Fast ext, Topte xt).

9. It is possib l e to con nec t h ead ph one.

10. Direct channel access.

11 . APS (Aut omat ic P r ogr am m i ng Syste m).
12 . All pr og r ams ca n b e nam ed .
13 . Forward o r bac kward au to ma ti c tu ning .

14 . Sl ee p timer.

15. Child Lock

16 . Au tom at ic sou nd mu te when no tran smiss i on .
17 . 5 minu tes aft er the br o adc asti ng ( c l osed own) , the TV s witc h es

itsel f aut omati ca lly t o st and- by mod e.

MAIN DIFFERENCE LIST

Model Name

!!!!

Part Na me

MAIN PWB VE-20101119 VE-20101113 VE-20101120 VE-20101540

!

RATING LABEL VE-20101395

CARTON BOX VE-50028254 VE-50028331 VE-50028286 VE-50028413

AV-2 1BF11ENS AV -21B F11EES AV-2 1BF11EP S AV-2 1BF11EJ S

VE-20101660

VE-20101560

(POLAND)

VE-20101548 VE-20101872

!

INSTRUCTION BOOK VE-50028252 VE-50028323 VE- 50028287 VE-50028290

No.52055

5

A

V-21BF11ENS

A

A

A

V-21BF11EES
V-21BF11EPS
V-21BF11EJS

SPECIFIC SERVICE INSTRUCTIONS

DISASSEMBLY PROCEDURE

REMOVING THE REAR COVER

1. Unp lu g t he po we r c ord.

2. Remove th e 6 screws marked A as show n in t he F i g. 1.

3. W i thdr a w t he r ear co ver to wa rd y ou .

REMOVING THE MAIN PWB

" Removing the rear cover.

1. Rem ove the sc r ew m ar ked B as s hown in the Fig.1.

2. Sl i ght ly r ai s e t he bo th sid es of th e ch assi s b y h and an d withd r aw

th e M AIN PW B backw ar d.
(If necessary, take off the wire clamp, co nnectors etc.)

REMOVING THE SPEAKER

"

Removing the rear cover.

1. Rem ove t he 2 scr ews m ar k ed C, an d re mo v e sp ea k er as s how n

in Fig. 1.

2. Rem ove the sp eake r .

REMOVING THE FRONT AV & HEADPHONE PWB

" Removing the rear cover.
"

Removing th e rear MAIN PW B .

1. Remove the 2 scr ew s marked D.

2. Rem ove the FR ONT AV & HE AD PHONE PW B.

CHECKIN G THE PW BOARD

To c h ec k the back s i de of th e PW B oard.

1) Pu ll o ut th e PW B oar d. (Ref er to REMOV ING THE MA IN
PWB ) .

2) Erec t th e PW B oar d ve rtic al l y so t ha t y ou c an eas i ly c h ec k
th e back s i de of th e PW B oard.

[CAUTION]

" When e recting the PW Board, be c areful so that t here will be no

con tact ing with ot her PW Boar d.

" Be fore tur n ing on po wer , ma ke sur e t ha t the wire co nn ecto r is

prop er l y con nected .

" W hen condu cti ng a c h ec k wi th p ow er su pplied , b e sure to c onfir m

th at t he CRT E AR T H WI RE (B RAIDED AS S’Y) is co nne c ted t o
th e C R T SOC KE T PW b oard.

WIRE CLAMPIN G AND CABLE T Y ING

1. Be sure t o clamp th e wire.

2. Never rem o ve th e cable ti e u sed f or t ying th e wires to ge the r.
Sh oul d it be i n adv e rt ent l y rem ove d, b e su r e to tie th e wires w it h
a n ew c able tie.

6

No.52055

A

V-21BF11ENS

A

S

A

S

A

V-21BF11EE
V-21BF11EP

V-21BF11EJS

(×6)

A

REAR COVER

(×1)

B

MAIN PWB

FRONT AV & HEADPHONE PWB

FRONT CABINET

(×1)

CRT

C

(×2)

SP EAKER

D

Fig. 1

No.52055

7

A

V-21BF11ENS

A

A

A

V-21BF11EES
V-21BF11EPS
V-21BF11EJS

REPLACEMENT OF CHIP COMPONENT

! CAUTIONS

1. Avoid heating for more than 3 seconds.

2. Do n ot ru b t he el ect ro des an d t he r esist p arts of the p att er n.

3. W hen rem oving a c hi p par t, m el t th e s older ad equate ly.

4. Do n ot r euse a ch ip p ar t afte r re mo v ing it .

! SOLDERING IRON

1. Use a hig h i ns ulatio n s older i ng iron with a t hin poin ted end of it.

2. A 3 0w s older ing i r on is r ecommend ed for easil y r em oving p ar ts.

!

REPLACEMENT STEPS

1. How to remove Chip parts

####

Resi st o rs, capacitors , etc

(1) As sh own in the f ig ur e, pu sh th e pa rt w ith tw ee zer s and

alte rn at ely melt the s ol de r at eac h end.

(2) Sh if t with tweeze rs and r em ove th e c h i p p art.

#### T rans isto rs, d io d es , va ria bl e r esist or s, etc

(1) Ap pl y e xt ra so ld er to eac h le ad .

SOLDE R SOLDE R

2. How to install Chip parts

####

Resi st o rs, ca pacit ors , etc

(1) Apply solder to th e patt ern a s i ndicated in the fi g ure.

(2) Gr asp t he ch ip p art with tw ee z er s and pl ac e it on th e s old er.

The n hea t and me lt th e so lder a t both ends of t he chi p part.

#### T rans isto rs, d io d es , va ria bl e r esist or s, etc

(1) Apply solder to th e patt ern a s i ndicated in the fi g ure.
(2) Grasp the ch ip p art wit h t weeze rs and p lace it on the s o l der .

(3) First s older lead A as indica ted in t he figure .

A

(2) As sh own in the f ig ur e, pu sh th e pa rt w ith tw ee zer s and

alte rn at ely melt th e sol d er at each le ad . S hi ft an d r em ove the
chip part.

(4) The n solder le ads B and C .

Note : A fte r re moving t he part, r emove rem ain ing solder fr o m the

pattern.

8

No.52055

C

A

C

B

B

A

A

S

A

S

A

MEMORY IC REPLACEMENT

VALUE
VALUE

ITEM
MENU

MU T I NG

INFORMATION

COLOUR k

STANDARD

1. Memory IC

This model use a memory IC.
Thi s me mo r y I C st or es d ata for pr op er op er ati o n of the vid eo

an d d ef lecti on c ircu it s.

When replacing, be s ure to use an IC containing this (initial
valu e) data.

2. Memory IC replacement procedure

(1) Power off

Switch of f t he p ow er an d dis con nec t th e power co rd from
the wall outlet.

(2) Replace the memory IC

Init ial value m ust be entered into the n ew IC .

(3) Power on

Connect th e pow er c or d t o the wa ll o utlet an d s witc h on t he

power.

V-21BF11ENS

V-21BF11EE
V-21BF11EP

V-21BF11EJS

SE RVICE MENU

Fig.1

SERVICE MENU SELECT KEY

(4) SERVICE MENU setting

1) Pr ess MENU key an d, while th e di spla yed M ENU

screen, press 4, 7, 2, 5 key on th e rem ote co ntrol uni t or
press MUTING key and INFORMATION key at the

same time.

2) The SER V ICE M ENU sc r ee n of F i g.1 is d isp l ay ed .

3) Ve rif y what to s et i n th e SERV ICE M EN U, and set

what ever is nec e s sary (Fig.1 ). Ref er to th e SE RVICE
ADJU STM ENT for settin g.

4) Press the STANDARD key to exit SERVICE MENU.

(5) Rec eiv e channel setting

Refe r to the OPERATIN G I N STRUCTIO NS ( USER ’S

GUID E) a nd set th e rece ive ch an nel s (Chan n els Pr eset ) as
described.

(6) User se tt ing s

Check th e us er s ett ing it ems ac c ordi ng to aft er pa ge .
Wher e th ese d o not a gr ee, r efer to t he OPE RAT ING

INSTRUCTIONS (USER’ S GUIDE) and set th e items as
described.

ITEM
SELECT(▲)

SELECT(－)

FUNCTION

POWER

NUMBER

key

ey

SELECT(＋)

SELECT(▼)

Fig.2

No. 52055

9

A

V-21BF11ENS

A

A

A

V-21BF11EES
V-21BF11EPS
V-21BF11EJS

SETTING OF THE LAST MEMORY FOR SHIPMENT

■■■■ USER SETTING VALUES

Setting Item Setting Value Setting Item Setting Value

SOUND MENU FEATURE MENU

BA LANCE CEN TER SLEEP TIMER OFF

BA SS

↑

CHILD LO CK OFF

TR EBL E

MODE STEREO AV-2 OUTPUT TV

EFFECT OFF

PICTURE MENU INSTALL

BRIGHTNESS PROGRAMME

CONTRAST BAND

COLOUR CHANNEL

SHAR PNES S SE ARCH

HUE (only NTSC)

PICTURE MODE AUTO STO RE

Thes e ad j us t a re aut om ati ca lly

restore d when AP S b it in Se rvice

menu i s set .

The proc edure f or s e tti ng AP S

bit is describe d bellow.

↑

LANG UAGE ENGL ISH

Refe r to t he INSTRUCTION

BOO K

FINE TUNING

■ SETTING APS BIT IN SERVICE MENU

1) En ter s er vic e me nu in TV m ode by press i ng “ INFORMATION ” a nd “MUTI NG” keys simultan eou sly . S ervic e M en u will ap pea r.

2) Se lect TX1 (TEL ET EXT OPTIO N) b y pressin g U p /Dow n keys o n r em ot e c ontro l un it.

3) Press the 7 key on remot e control unit to set APS bit . (After this, bit 7 of TX1 will be “1”)

4) Press STANDARD key on remote cont rol unit to exit service mode.

NOTE : DO NOT TURN OFF THE TV BY USING POWER BUTTON O N THE FRONT PANEL.

10

No. 52055

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SERVICE ADJUSTMENTS

ADJUSTMENT PREPARATION

1. You ca n ma ke t he ne ce ssa ry ad ju st me nts for t h is un it wit h
either the Remote Control Unit or with the adjustment tools

and parts as given below.

2. Adjustment with the Remote Control Unit i s made on the

basis of the initial setting va lues, however, the new setting
values which set the screen to its opti mum condition may

differ f rom the init ia l s ettings.

3. M ak e s ur e t hat AC p ow er i s tu r ned on c orrec tly.

4. T ur n on the power for set an d test eq uip me nt bef or e use , and
start t he ad justmen t p roced ur es aft er w ai ti ng at least 30 minut es.

5. U nl ess o the r wise s pec if i ed, prep are t he most s u it able recep tion
or inp ut sign al for adjust ment.

6. N ever t ouch a ny a dj ust me nt p art s whi c h ar e n ot spec ified in th e
list for this adjustment - variable resistors, transformers,

condensers, etc.

7. Pr esetti ng before ad j ustm en t.

Unl es s ot her w i se spec if i ed i n t he adjustme nt i nstr uct i ons , p r ese t

th e f ollo w ing f uncti ons with th e re mo te c ont ro l un it :

BRIGHT NES S

CONTRAST
COLOUR

SHAR PNES S

V-21BF11ENS

V-21BF11EE
V-21BF11EP

V-21BF11EJS

CENTER

ADJUSTMENT EQUIPMENT

1. DC voltmeter (or digital voltmet er)

2. Si gn al g en erat or (P attern g en erat or) ［PAL/SECAM/NTSC］

3. Remote control unit

MAIN PARTS LOCATIONS

FRONT

ADJUSTMENT ITEM

!

SCR EEN A DJ UST MENT

! OSD HORIZONTAL POSITION ADJUSTME NT
!

IF AD JU STM EN T

! AGC A UTO MATI CALLY A DJUSTM EN T
! DEFLECTION CIRCUIT ADJUSTMENT
!

GEO MET R Y MENU ADJ UST MENT

! WHITE BALANCE ADJUSTMENT

FRONT

FRONT AV &

HEADPHONE PWB

TOP

CRT SOCKET PWB

No. 52055

MAIN PWB

11

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V-21BF11ENS

A

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A

V-21BF11EES
V-21BF11EPS
V-21BF11EJS

BASIC OPERATION SERVICE MENU

■■■■ HOW TO ENTER THE SERVICE MENU

1) Pr ess the MENU key.

2) ME NU s c reen of fig.1 will b e d ispla ye d

MENU SCRE EN

MENU

SOUND
PICTURE
FEATURE
INSTALL

PROGRAM

REMOTE CONTROL UNI T key NAME

NUMBER key

Fig.1

3) W hile the ME NU sc r ee n is disp lay ed , p r es s th e 4,7 ,2, 5 ke y or

INFORMATION key and MUTING key simultaneously.

4) The SERV ICE MENU screen of (Fig.2) will be displayed.

SE RVICE MENU

ADJUSTMENT ITEM SETTING VALUE

Fig.2

■ SELECTION OF ADJUSTMENT ITEMS

1) En ter th e SERVICE MENU

2) Press the FUNCTION / key and select the ADJUSTMENT

ITEM.

3) Press the F UNCTION / key and s et t he SETTI NG VAL UE.

■ HOW TO EXIT SERVICE MODE

1) Pr ess the STANDARD Key on REMOTE CO NTROL UNIT.

■ HOW TO ENTER THE GEOMETRY MENU

"

Thi s mo del is buil t- i n GEO ME T RY M EN U f or ge om et ry

adjustment.

1) En ter th e SERVICE MENU

2) Press the GREEN key, geometry menu appears (Fig. 3).

3) Press the FUNCTION / key and select the ADJUSTMENT
ITEM.

4) Press the F UNCTION / key and s et t he SETTI NG VAL UE.

GEOME TRY MEN U

INFORMATION
key

AV key

" FUNC TI ON OF COL O UR k ey

RED key :

It switch es th e AV L to ON o r OF F mode on servic e

menu . AV L wo rd i s visible o n s er vice m en u when
AV L is o n.

GREE N k ey :

It s witch es t o GE OM ETR Y adjust menu. G eomet ry

of th e p ict ure i s a dj ust ed in th is m enu.

YELLOW key :

It s witch es t o VE RT ICAL SC AN DISA BLE mode.
It i s us eful t o adj ust scr een volt age.

BL UE ke y :

It i s used to adj ust AGC an d I F au tom a tical l y on

ser v ice me nu.

STANDARD
key

COLOUR key

MENU key

FUNCTION
key

GEOME TRY

VSIZ 023
VPOS 028
VSCO 000

VCCO 008
HSIZ 007

HPOS 039
HPIN 015

ADJUSTMENT ITEM SETTING VALUE

Fig.3

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No. 52055

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ADJUSTMENT ITEM & INITIAL (Recommended) SETTING VALUE in the SERVICE MENU

ADJUSTMENT
ITEM

OSD HOR IZONTAL POSI TION OF OSD 082

IF1 IF C OAR S E AD JUST MENT 004

IF2 IF FINE ADJUSTME NT 065

IF3 IF C OAR S E AD JUST MENT FOR L-P RI ME 004

IF4 IF FINE ADJUSTMENT FOR L-PRIM E 065

AGC AUTOMATIC GA IN CONT ROL Autom at ic ally

VLIN VERTICA L LINEARITY 045

RGBH RGB MODE HORIZONTAL SHIFT OFFSET 007

VSOF VE RTICA L S IZE OF FSE T for 60Hz -01

VP OF VE RTICA L PO SITIO N OFFSET f or 60 Hz -01

HSOF HORIZONTAL SIZE OFFS ET for 60Hz Not used

HPOF H ORIZONTAL POSI TION OFFSE T for 6 0Hz +00

HTOF HORIZONTAL TRAPEZOID OFFSET for 60Hz Not used

WR WHITE POINT AD JUST ME NT FOR RE D 04 0

WG W H IT E PO INT ADJUST ME NT FOR GREEN 04 0

WB W H ITE PO INT ADJUSTME NT FOR BLUE 040

BR BIA S FOR RED 030

BG BIA S FOR G REEN 031

APR AUTOMATIC RGB P EAK REGUL ATION THRESHOL D 010

BRI BRIGHT NES S 030

CON CONT RAST 035

COL COLOUR 038

SHR SHARP 006

HUE HUE 031

VOL VOLU ME 01 5

WR-R WHITE PO INT ADJU STMENT for RED (R GBm o de) 030

WG-R W H IT E PO INT ADJUST ME NT for GR EE N (RGBm o de) 055

WB-R W H ITE PO INT ADJU STMENT for BL UE (RGBmo de) 032

FMP 1 FM PRES CA LER W HE N AV L IS OF F 009

NIP1 NICAM PRESCALER WHEN AVL IS OFF 020

SCP1 SCAR T PRES CA LER W HE N AV L IS OFF 01 3

SE C1 SE CAM PRE SCALE R WH E N AV L IS OFF 013

FMP 2 FM PRES CA LER W HE N AV L IS ON 013

NIP2 NICAM PRESCALER WHEN AVL IS ON 016

SCP2 SCAR T PRES CA LER W HE N AV L IS ON 01 3

SE C2 SE CAM PRE SCALE R WH E N AV L IS ON 013

F1H HIGH BYTE OF VHF1-VHF3 CROSS-OVER FREQUENCY 00001001

F1L LOW BYTE O F VHF1- VHF3 C ROSS -O VER FREQ UE NCY 10010010

F2H HIGH BYTE OF VHF3-UHF CROSS-OVER FREQUENCY 00011011

F2L LOW BYTE O F VHF3- UHF CR OS S-OVER FR EQ UE NCY 10 00 00 10

BS 1 BA ND SW ITCHIN G B YT E F OR V HF1 0000 0011

BS 2 BA ND SW ITCHIN G B YT E F OR V HF3 0000 0110

BS 3 BA ND SW ITCHIN G B YT E F OR U H F 10 00 01 01

CB C ON T R OL B YTE 10 00 11 10

DESCRIPTION INITIAL VALUE

V-21BF11ENS

V-21BF11EE
V-21BF11EP

V-21BF11EJS

1/2

No. 52055

13

A

V-21BF11ENS

A

A

A

V-21BF11EES
V-21BF11EPS
V-21BF11EJS

■

ADJUSTMENT ITEM & INITIAL (Recommended) SETTING VALUE in the SERVICE MENU

2/2

ADJUSTMENT

ITEM

OP1 PERIPHERAL OPTIONS 01110101

OP2 RECEPT I ON STAN DARD OPT IO NS 00001001 (EN)

OP3 VIDEO OPTI ONS 01 101101 (EN)

OP4 TV F E ATURES 10 00 10 00

OP5 CHA N NE L T A BLES 00 0000 00

TX1 TEL ETEXT O PTIONS 10 01 01 01 (E N)

GEOM GEO MET R Y OPTIO NS 0000 0000

OP8 PIP PR ES ET CHANGE 00000000

[GE OMETRY MENU ]

ADJUSTMENT

ITEM

VSIZ VERTICA L S IZE f or 50Hz 030

VP OS VERTICA L POSITIO N for 50Hz 010

CSCO VERTICAL S-CORRECTION for 50Hz Not used

VCCO VERTICAL CORNER CORRECT ION for 50Hz Not used

HSIZ HORIZONTAL SIZE f or 50Hz Not used

HPOS H ORIZONTAL P OSI TION for 50Hz 035

HPIN HORIZONTAL P INCUSHION for 50Hz Not used

HCCO HORIZONTAL CORNER CORRECTION for 50Hz Not used

HTRP HORIZONTAL TRAPEZOID for 50Hz Not used

VZSZ VERTICA L ZOOM S IZE f or 50 Hz Not used

DESC RIPTI ON INITIAL VALU E

01 00 10 01 (EP)

00 01 10 01 (EE)

00 10 00 01 (EJ)

11 10 11 01 (EP/EE /EJ)

10 00 01 01 (EP)

10 00 11 01 (EE)

10 01 11 01 (EJ)

DESCRIPTION INITIAL VALUE

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ADJUSTMENTS

■■■■ SCREEN ADJUSTM ENT

Item

SCREEN

adjust me nt

■ OSD HORIZONTAL POSITION ADJUSTMENT

Item

HORI ZONTAL

POSITION O F
OSD
adjust me nt

Measuring

instrume nt

Remote

control unit

Measuring

instrume nt

Remote

control unit

Test point Ad justment part Description

SCREEN VR

[On the FBT]

Test point Ad justment part Description

OSD 1. En ter SE R VIC E MENU.

SE RVICE MENU SCREEN

V-21BF11ENS

V-21BF11EE
V-21BF11EP

V-21BF11EJS

1. Enter SE RVICE MENU .

2. Pr ess YEL LOW key to disab l e ve rt ic al s can .

3. Ad ju st SC R EE N VR. on the F BT a s th in as pos sible.

4. Pr ess YELLOW k ey ag ain to enabl e vertical sc an.

5. Pr ess MENU ke y to l eav e ser vice menu .

2. Se lect OSD with FUNCTION ( / ) ke y

3. Adjust t he OSD horizontal pos ition with the FUNCTION ( / )
key, wh ic h shifts th e ref er enc e bar on the b ott om of th e

SE RV ICE MENU ho r izo ntall y, s o th at th e OSD is po sition ed on
th e scr een c ent er . ( X=X’)

■■■■ IF ADJUSTMENT

Item

IF adjustme nt Remot e

Measuring

instrume nt

control unit

Reference bar

XX’

Screen size

Test point Ad justment part Description

IF 1

IF 2

IF 3

IF 4

1. Enter SE RVICE MENU .

2. Se lect I F 1 with FUNCTION ( / ) key

3. Pr ess BLUE key d uring I F 1 i s h ig hligh ted , I F 1 an d IF 2 values

are ad ju sted au tomat ic ally b y sof twar e.

4. If th e st and ar d is L- p ri m e, IF 3 and I F 4 valu es ar e ad ju s tm ent

au tom at ic al l y when B LU E key is press ed dur i n g I F 1 i s
highlight ed.

No. 52055

15

A

V-21BF11ENS

A

A

A

S

V-21BF11EES
V-21BF11EPS
V-21BF11EJS

■■■■ AGC AUTOMAT ICALLY AD JUSTMENT

Item

AG C

AUTOMATIC­AL LY

adjust me nt
& check

Measuring
instrume nt

Remote

control unit

ERVICE MENU SCREEN

Test point Ad justment part Description

AG C 1. En ter SE RVICE MEN U .

■■■■ DEFLECTION CIRCUIT ADJUSTMENT

Item

VERT ICAL

LINEARITY
adjust me nt

Measuring

instrume nt

Signal

generator

Remote
control unit

Test point Ad justment part Description

VLIN 1. Receive a PAL B/G circle pattern.

2. Receive a 60dBμV R F sign al l evel.

3. Se lect AGC with th e FU NCTION ( / ) key.

4. Pr ess BLU E ke y on th e remot e co ntr ol uni t.

5. Then the adjustment will be done automatically by software.

6. Se e the AGC indica tor o n SERVICE MENU, it m ust b e “1” .

7. Check th at p ict ure i s nor m al a t 90dB μV signal level.

:11

IF INDICATOR AGC INDICATOR NONE

2. Enter SE RVICE MENU .

3. Se lect VLIN ( Verti ca l linearity) wit h th e FUNCTIO N ( / ) key.

4. Adju s t VL IN with t he FU NCTION ( / ) key un til c ircl e as
roun d as p ossi bl e.

5. Pr ess the ME NU key a nd m em or iz e the s et va l ue.

R GB M O DE

HORI ZONTAL
SHIFT

OFF SET
adjus tme nt

16

Signal

generator

Remote

control unit

A

RGBH 1. Input R/G/B circle pattern signal via vid eo inpu t te rmin al.

2. Pr ess AV key on the r emote control u nit, force the TV t o RGB
mode.

3. Enter SE RVICE MENU .

4. Se lect RGBH (R GB mo de h oriz ont al sh ift of fset ) wit h t he

FUNCTION ( / ) key.

5. Ad just RGBH wit h the FUNCTION ( / ) key u ntil the circle

B

p attern i s h orizo ntally ce ntered.( A=B)

6. Check and r ead jus t RGBH i tem if th e adjus tme nt b eco mes

imprope r aft er s om e oth er g eomet ric a djust m ents are d on e.

No. 52055

A

V-21BF11ENS

A

S

A

S

A

g

V-21BF11EE
V-21BF11EP

V-21BF11EJS

Item

VERTICAL

SIZ E OFFSET
adjus tme nt

(60Hz)

Very close

Scr e en

size

Very close

VERTICAL
POSITION

OFF SET
adjus tme nt

(60Hz)

Measurin

instrume nts

Signal

generator

Remote
control unit

Signal
generator

Remote

control unit

Test point Ad justment part Description

VS OF 1. Recei v e a NTSC-M c r oss- h atch p atte r n of vert ic al fr eq uenc y

60Hz.

2. Enter SE RVICE MENU .

3. Se lect VSOF( Verti ca l size) with the FU NCTION ( / ) ke y.

4. Adjust VSOF with the FUNCTION ( / ) key until the

horizontal black lines on both the upper and lower part of the
p attern b ec om e v er y cl os e t o t he u pper an d l ow er h ori zon tal

si des of pictu re size a nd ne arl y ab ou t to di sa pp ear.

5. Check an d r ea djus t VS OF i tem i f the adjustmen t b eco me s
imprope r aft er s om e oth er g eomet ric a djust m ents are d on e.

Picture

size

10 0%

VPOF 1. Recei v e a NTSC-M c i rc le p att er n of ve rti ca l fr equ enc y 60H z .

2. Enter SE RVICE MENU .

3. Se lect VPOF ( Vertica l posi tion) wit h t he FU NCTION ( / )
key.

4. Ad just V PO F with the FUN CTIO N ( / ) key u ntil th e p icturer
is vertically centered.(C=D)

5. Check and read jus t v er ti c al p ositi on it em i f th e a djus t ment
b ecomes i mp r ope r afte r so me oth er ge om etr i c adju stm en ts

C

are do ne.

D

HORI ZONTAL
POSITION

OFF SET
adjus tme nt
(60Hz)

Signal

generator

Remote

control unit

E

HPOF 1. Inp ut a N T SC - M c ircle p at tern si gn al of ver tical f requ en c y

60Hz.

2. Enter SE RVICE MENU .

3. Se le ct H POF ( Horiz ont al p osition) with t he FUNCT ION ( / )
key.

4. Adjust HPOF with the FUNCTION ( / ) key until the circle

F

p attern i s h orizo ntally ce nte red.( E=F)

5. Check an d r ea djust a h ori zont al po sit ion it em i f t he adj u stme nt
b ecomes i mp r ope r afte r so me oth er ge om etr i c adju stm en ts

are do ne.

No. 52055

17

A

V-21BF11ENS

A

A

A

g

V-21BF11EES
V-21BF11EPS
V-21BF11EJS

■■■■ GEOMETRY MENU ADJUSTMENT

Item

VERT ICAL

SIZ E
adjust me nt

(50Hz)

Very clos e

Scr e en

size

Very clos e

VERTICAL
POSITION

adjus tme nt

(50Hz)

Measurin

instrume nts

Signal

generator

Remote
control unit

Signal
generator

Remote
control unit

Test point Ad justment part Description

VS IZ 1. Receive a PA L B/G cr oss - h atch p att ern of ver tica l frequ enc y

50Hz.

2. En ter SE R VICE MENU .

3. Press GREEN ke y to en ter the G EOMETRY MENU.

4. Se lect VS IZ (Vertic al size) w ith the FUNCTION ( / ) key.

5. Ad just VSIZ with th e FUNCTION ( / ) key until th e scr e en
th e h orizon tal bl ack lin es o n bot h th e up per and l o we r pa nt of

th e patt er n bec o me ve r y close to th e upp er an d l ow er
h orizo ntal s i de s of pictu r e size and n early a bout t o di sa pp ear.

6. C heck a nd re adj us t VS2 B i tem if th e adj u s tm ent be com es

Picture

size

10 0%

VP OS 1. R ec ei ve a PA L B/G c irc le patt er n sig nal of v er t ic al f requ enc y

A

imprope r aft er s om e oth er g eomet ric a djust m ents are d on e.

50Hz.

2. En ter GE OMETRY MENU.

3. Se lect VP OS (Ver ti ca l posi ti o n) with t he FU NCTION ( / )
key.

4. Ad just VPOS with the FU NCTION ( / ) key until t he circle
pattern is vertically centered.(A=B)

5. C heck an d r ead j us t VP OS i tem if th e ad jus tm en t bec omes
imprope r aft er s om e oth er g eomet ric a djust m ents are d on e.

HORI ZONTAL

POSITION
adjus tme nt

(50Hz)

18

Signal

generator

Remote
control unit

C

B

HPOS 1. R eceive a PA L B/G circ le p att er n s ig nal of v er ti c al fr eq uency

50Hz.

2. En ter GE OMETRY MENU.

3. Se lec t HPOS ( H or izo nt al po sit i on) w it h t he FUNC TION
( / ) key.

4. Ad just HPOS with th e FUNCTION ( / ) key until the ci rcle

D

p attern i s h orizo ntally ce nte red.( C=D)

5. C heck an d r ead j us t H POS ite m if the ad justmen t bec om es
imprope r aft er s om e oth er g eomet ric a djust m ents are d on e.

No. 52055

A

A

S

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S

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■■■■ WHITE BALANCE ADJUSTM ENT

Item

WHITE
BALANCE

adjust me nt
(Low light)

Measuring

instrume nt

Signal
generator

Remote

control unit

Test point Ad justment part Description

Recommended value 04 0 040 040

WR

WG

WB

It em WR WG W B

1. Recei v e a bla ck & whit e sign al ( col o ur off ).

2. Enter SE RVICE MENU .

3. Se lect WR / W G / WB wit h t he ( / ) key, r es pect ively.

4. Ad just WR / W G / W B with the FUNCTION ( / ) key,

resp ecti vely, unt il th e whit e p art tu rns to pu re whit e witho ut any
other color..

V-21BF11ENS

V-21BF11EE
V-21BF11EP

V-21BF11EJS

WHITE
BALANCE

adjust me nt
(Hi gh light)

Signal
generator

Remote

control unit

BR

BG

It em BR BG

Recommended value 030 03 1

1. Recei v e a bla ck & whit e sign al ( col o ur off )

2. Enter SE RVICE MENU .

3. Se lect BR / BG with the FUNCTION ( / ) key r esp ect ive ly.

4. Ad just BR / BG with the FUNCTION ( / ) key resp ectively

until the white part of screen make white colou r.

No. 52055

19

A

V-21BF11ENS

A

A

A

V-21BF11EES
V-21BF11EPS
V-21BF11EJS

[MEMO]

20

No. 52055