JVC AV42PD20ES Schematic

SERVICE MANUAL

PLASMA WIDE TELEVISION

AV42PD20ES

BASIC CHASSIS

CONTENTS

AV42PD20ES

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

WARNI NG

FEATURES ････････････････････････････････

! FUNCTIONS････････････････････････････････ !

TECHN ICAL INFORMAT ION

! INSTALLATIONS････････････････････････････････ !

SPECIFIC SERVICE INSTRUCTIONS

SERVICE ADJUSTMENTS ････････････････････････････････

! TROUBLESHOOTING････････････････････････････････ !

PARTS LIST

★

OPERATING INSTRUCTIONS

★

STAND ARD CIRCUIT DIAGRAM

････････････････････････････････

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

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

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

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

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

･･･････････････････････････････････

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

････････････････････････････････

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

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

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

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

････････････････････････････････

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

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

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

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

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

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

････････････････････････････････

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

････････････････････････････････

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

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

･････････････････････････････ 2

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

･･････････････････････････････････

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

･･････････････････････････････････

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

･････････････････････････････ 11

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

･････････････････････････ 36

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

････････････････････････････････････

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

･･･････････････････････ 4

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

･･･

･･････

･･ 6

･･････ 7

････

････････････････････

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

････････････

････････････････････････

･････････････････････ 21

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

････････････････

････････････････････････････････

2- 1

No.519 55

May 2002

V42PD20ES

SPECIFICATIONS

Item CONT ENTS

Dimensions ( W××××H××××D ) 10 4.8 cm ×11 4.0c m× 35 .8c m

Mass 58 .0 kg

TV RF System CCIR B/G, I, D/K, L ,L’

Colour Syst em PA L / SE CAM & NT SC 3.5 8 / N TSC 4. 43 ( NTSC p la y b ack on l y)

Sound System A2 ( B/G , D/K), NICAM (B/G , I, D/ K, L)

Teletext System Fastext(United Kingdom system), TOP(German syst em), WST(World standard system)

Rec eiving Frequency

French CATV 116MHz～17 2MH z / 2 20 MH z～4 69M H z

Intermediate

Frequency

Colour Sub

Carrier

Power Input AC 2 20V～2 40V , 5 0H z

Power Consumption 380W ,2A ( Max. ) / 2 80W (A vg.) / 5 .5 w (St and by)

PDP S ize Vis ible ar ea 10 5.7 cm, [ Meas ured diag on ally]

Speake r

Au dio Output Rated

An ten na Input

Input / Output Terminals

Au dio ou tp u t RCA pi n typ e, V ari ab le au dio L/R o utput ar e avail a ble

PC Input

Headphone Jack

Remote Control Unit RM-C59 (AAA/R03 dry ce ll b atte ry×2)

Design and specifications are subject to change without notice.

VHF 47 MHz ～ 470MHz

UHF 470MHz～86 2MHz

VIF Carrier 38.9 MHz( B/G , D/K, I, L) / 3 3.95MHz (L’)

SIF Carrier 33.4 MHz( 5. 5MHz : B/ G) / 32 .9 MHz( 6.0MHz : I)

32.4 MHz(6.5 MHz : D/ K, L) / 40.45M Hz(6.5 MHz : L’)

PAL 4.43MHz

SE CAM 4. 4062 5MHz / 4 .25 MHz

NT S C 3.58MHz / 4.43 MHz ( pl a y bac k)

8cm round×2 , 16 cm roun d×1 ( su b wo ofer) / 4Ω

5W + 5W ( L+R) / 20 W(su b woof er)

75Ωun ba l anc ed, C oaxial

EX T-1

EX T-2

EX T-3 21-p i n E uro c onnecto r ( SC A RT s ocket), Vi de o, Aud i o L/R , RGB signa l i npu t a r e a va ilable

EX T-4 RCA pin type, S-Video, Video and Audio L/R signal input are available

21 -p i n E uro c onnec to r (SC A RT s ocket) , Vi de o, Aud io L/R , RGB signa l i npu t a r e a va i lable TV br oad c ast out put (Vide o and Au dio L/R) are ava ilab l e

21 -p i n E uro c onnec to r (SC A RT s ocket) , S-V i de o, Video , A udio L/ R, RGB s ign al inpu t a re a vailable AV select or ( TV LIN K ) func ti on is avai l able

D-Sub 15 pin ×1 / si gnal (R, G, B / H&V SYNC)

St ereo min i jac k (φ3.5mm )

[21pin Euro connector pin assignment] [PC IN connector]

(15pin D-Sub connect or pin assignm ent)

No. 51955

V42PD20E

]

640×480

■■■■21-PIN EURO CONNECTOR (SCART socket) : EXT-1 / EXT-2 / EXT-3

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

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

1 AUDIO R o utput 50 0mV (r ms) , Low i m pe dance

2 AUDIO R i n put 50 0m V(r ms) High i mp ed ance

3 AUDIO L output 500mV(rms), Low impedance

4 AUDIO GN D ○○○ 5 GND (B) ○○○

6 AUDIO L input 500mV(rms), High impedance 7B input 700mV

FUNCTION SW

(SLOW SW)

9 GND (G)

10 SCL1 NC

11 G in put 70 0m V 12 SDA1 NC ○ NC 13 GND (R) ○○○

14 GND (YS)

15 R / C input

16 Ys i n put L ow : 0V - 0. 4V, H i gh : 1 V - 3V , 75 Ω○ ○ NC 17 GND(VIDEO output) ○○○ 18 GND(VIDEO input) ○○○

19 VID EO outpu t

20 VIDEO / Y inp ut 1V

21 COMMON GN D ○○○

(B-W )

, 75Ω○○NC

Low : 0V-3V, High : 8V-12V ,H i gh imped anc e

(B-W )

, 75Ω○○NC

R : 700mV C : 300mV

(B-W)

, 75Ω

(P-P)

75Ω

(P-P )

(Neg ati ve goi n g s ync), 75 Ω

(P-P )

(Neg ati ve goi n g s ync), 75

○

(TV OUT)

○○○ ○

(TV OUT)

○○○

○○ ○

(only R)

○

(TV)

○

(only V IDEO in pu t)

○

(LINE OUT)

○

(LINE OUT)

○

(LINE OUT) NC

○○

○

(only C )

■■■■15-PIN D-SUB CONNECTOR (PC IN connector)

Ea ch t ype si gna l o f co mp ut er

Model Resolution

IBM P C/AT compatible (VGA) 37.9 72.8

80 0×600 35.2 56.3 (SV GA) 37 .9 60 .3

10 24 ×768 48.4 60.0 (XGA) 56.5 70.1

Apple 640×480 35.0 66.7 Macintosh 832×624 49.7 74.6

10 24 ×768 60.2 74.9 11 52 ×870 68.7 75.1

Ho r iz ont a l Frequency [kHz

31 .5 59 .9

37 .5 75 .0 43 .3 85 .0 51 .1 10 0.4 61 .3 12 0.4

48 .1 72 .2 46 .9 75 .0 53 .7 85 .1 63 .0 99 .8 75 .7 12 0.0

60 .0 75 .0 68 .7 85 .0 80 .5 10 0.6

Ve rtical Frequency [Hz

PC IN connector [ 15pin D-sub pin assignment ]

Pin No. Signal Name Details

1 RED Red vi deo signal 2 GR EE N Gr ee n vid eo s igna l

3 BLUE Blue video signal 4 ― N ot c onnect ed

5-8 GN D Sign al e arth

9 ― N ot c onnect ed

10 GND Sign al earth 11 ― N ot c onnect ed 12 ― ―――――― 13 HSYNC Horiz ont al syn chron ous signal 14 VSYNC Vertical synchronous signal 15 ― ――――――

No. 51955

V42PD20ES

SAFETY PRECAUTIONS

＜＜＜＜専用

専用

専用専用

PDP

対応＞

対応＞対応＞

02 -0 3- 19,

中嶋

中嶋中嶋

1. The d esign of th is prod uct con ta ins sp ecial har d 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. S er v i ce sho ul d b e p er for m ed by qu alif ied p ers on nel on ly.

2. Alte r ation s of t he des ig n or circui try 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. Man y electr i c al an d m ec h ani ca 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 shor t between the LIVE s ide ground and ISOLATED

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

Some model's power circuit is partly different in the GND. The diff erenc e of th e G ND i s sho wn b y th e LIVE : (") side GN D, the ISO LATE D(N EU TR AL) : ( #) side G ND and EARTH : ($) side GND. D o n't sh ort b et ween th e LIV E s i d e GND an d

ISO LATE D(N EU TR AL) si de GND or EAR TH side 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 OLA TED(NE UTRAL ) s ide G ND 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 PDP volt age setti ng sh oul d be check ed or adj ust ed .

6. When se r vic e is r equ ire d, ob serve th e or i gina 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.

7. 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 cabin et, sc r ew he ad s, ea rph one j ack, con tr ol s haf ts, 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 150 0V AC (r.m. s.) for a period of one sec ond. 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

3.5mA 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

having 1000 Connect a 1 500 Ω 10W resistor paralleled by a 0.15µF AC-type

cap acitor b etwe en an e xpos ed me tal part a nd a kn own g ood ea rt h gr o und ( water p ipe, etc.) . M eas ur e t he AC volta ge acr oss the resistor with the AC voltmeter. Move the resistor connection to e ach expos ed met al pa rt, par ti c u l arly an y exp ose d m eta l par t h aving a re turn pa th to th e ch assis, and me asure th e AC vo ltag e

acr os s t he res is tor. Now, re v er se the plug in the AC o utlet an d repe at each m eas u re m ent . A ny volta ge measu red m us t not exce ed 0 .7 5V A C (r .m. s.) . Thi s corresp onds to 3.5 mA 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.).

GOOD EARTH GROUND

Ω /

V or more sensitivit y in the following mann er.

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

0.15μF AC -T YPE

PLACE THIS PROBE

1500 Ω 10W

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

No.51955

V42PD20E

SAFETY PRECAUTIONS

1. The des i gn of thi s pr odu ct c ont ai ns spe cial har d ware and many 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 sh ou ld be pe rf or me d b y qua li fi e d per s o nn el on ly.

2. Alte r ation s of the desi g n or circ uitr y of th e pr od uct s ho ul d not b e

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. Man y electr ical a nd me c ha ni cal p ar ts i n the pr od uc t h ave spe cial saf ety- r el at ed ch ar act er ist i cs. Thes e ch aracter istics a re oft en not evi d ent fr om visu al insp ectio n no r c an th e pr otect ion af for ded by

th em n ec ess ar y b e o bta in ed by using r e plac em ent c ompon en ts

4. The l ea ds in th e p r odu c ts ar e r ou ted an d d ress ed w it h t ies,

[UK MODEL]

rated for wattage, etc. Replacement parts which have these sp ecial saf et y char acte ristics ar e id enti fie d in t he P art s List of

Se rvi c e Ma nu al. E lectr ical c ompon en ts h aving such feat ur es ar e identified by shading on the schematics and by (!) on th e Pa rts List i n th e Ser vice M an ual. Th e us e of a sub sti tu te r ep lac em en t

whic h d oe s n ot hav e t he sa me s af et y ch aracte ris ti c s as th e reco mmen ded rep l acemen t p art s hown in th e P arts Li s t of

Se rvi c e Ma nu al m ay c ause sh ock, f ire, or o th er haz ards.

cl am ps, tu bing ’s , b arrie rs a nd t he lik e t o be s epa ra ted from live

p arts, h ig h t empe ra ture parts, movi ng parts an d / or sh ar p ed ge s

for t he preven tion of e lec tr i c sh ock and fire h azard. W hen ser v ice i s r e qu ir ed , the or i gi n al l e ad r outi n g and dre s s sh ould b e

ob served , and it sh oul d b e c o nfirmed t hat th ey h av e b ee n retu rn ed to no rmal, aft er r e- asse mblin g.

WARNING

1. The e quip me nt has b een d esign ed a nd m an ufact ured t o mee t

inte rn at iona l saf ety st and ards.

2. It i s th e l e ga l re spon s ibility of the rep aire r t o ensu re th at t hes e

saf ety st an dar ds are ma inta in ed.

3. Rep ai rs mu s t be mad e in accor d anc e with the relevan t saf ety

standards.

4. It is esse ntial th at s afet y cri ti ca l c ompon en ts ar e r epl a ced by

ap pr ove d p ar ts.

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

voltage.

No. 51955

V42PD20ES

FEATURES

New c hassi s d esign ena bl e us e of an interac tive on screen

control.

The TELETEXT SYSTEM h as a built-in FASTEXT (UK system),

TOP (Germ an syst em) and W ST (world standard syst em) system.

Pure FLAT PANEL reproduce fine textured.

" Be caus e th is TV un i t cor r esp on ds t o mul tipl e x br oa dca s t, u ser s

can enjoy music programs and sporting events with live realism.

" In ad diti on , BI LINGUAL pr o gram s can b e h eard in th ei r or i g in al

language.

" Built-in E CO (ECONOMY, ECOLOGY) sen sor MODE.

In acco rd ance with the br ig ht ness in a room, th e brigh tn ess

an d/ or con tr as t of th e pict ure c an be ad jus te d autom at ic al l y to make the op ti mu m pi ctu re which is eas y on the e ye.

TV EXT-1 EXT-3

Users can make VCR dubbing of picture and sound by controlling

th e AV se lecto r t o s elect a n opt ion al s our ce at the E XT -2 ou tpu t

sh own i n figu re.

EXT-4

EXT-2

No.51955

FUNCTIONS

FRON T TERMINAL

1 52 3 4

■■■■

FUNCT ION NAM E

1PC IN CONNECTOR (15pin D-sub connec tor) 2HEADPHONE JACK (MINI JACK) 3EXIT-4 TERMINAL

V42PD20E

4VO LUM E ( ) BUTTON

Press this button to display the volume level indicator. Press the ⑤ up/d ow n ( ∨/∧) b utt ons to cha nge v o l um e w hi le

the volume level indicator is dis played.

5∨/∧

(UP/DOWN ) BUTTONS

Yo u can use th is b utto n as th e ∨/∧ bu tto ns of the PR ch annel. P re s sing the ④ volume button makes this button

function as the volume - /+ butto ns.

LEFT SIDE TERMINAL

■■■■FUNCT ION NAM E

MAIN POWER SW

AC INLET

AERIAL SOCKET

AUDIO OUT (L, R) TERMINAL

5EXT-1(IN/OUT) TERMINAL 6EXT-2(IN/OUT) TERMINAL 7EXT-3(IN) TERMINAL

No. 51955

V42PD20ES

REMOTE CONTROL UNIT

■■■■FUNCT ION NAME

MUTI N G Key ( )

NUMBER (ten) Key

3 ZOO M Key 4

HYPER SOUND Key

INFORMATION Key ( )

6 TV Ke y 7

VOLUME -/+ Key

STAND-BY Key ( POWER)

PIP Key

CO LO UR K ey

B TEXT Key ( ) C

MENU / OK Key

PR C HAN NE L UP/ DOW N (∧/∨) Key

E FU NC TION ( / & ▲/▼) Key F

MODE Key (F. T/L) : LIST⇔FLOF /TO P

G HO LD Key ( ) H

SUB PAG E Key ( )

STORE Key ( )

J SIZE Key ( ) K

REVERSAL Key ( )

INDEX Key ( )

DISPLAY CANCEL Key ( )

TV / TEXT / DVD Key

O CHANGE Key ( ) P

FREEZE Key

SUB-PAGE (∧/∨) Key

No. 51955

TECHNICAL INFORMATION

(

)

PDP (PLASMA DISPLAY PANEL) DESCRIPTION

! CAUTION

Alth ou gh a PD P i s ma de w i th high ly ad va nc ed p r ecisi on , th is do es n ot nec es sarily m ean a ll o f th e cel l s op er at e cor r ect ly. T he PDP

inevit ably i nc ludes cell th at do no t li gh t or ligh t co ns ta ntly. If t he sp ecificat ions (PD P p er form an ce) ar e uncle ar at t he t ime of s hip me nt, an adeq uate d escr ip ti on can not be con veyed to t he customer. In eve nt of i n quiries f rom c usto me rs re ga rd ing PD P p erfor m an ce, chec k th e f ollo w in g s pecifi cat i ons i n or d er to of fer a suita bl e reply.

CELL ARR ANGEMENT

The PDP is c ons tru cted of f r ont a nd rear glas s substrat es pr ovid ed with re spec tive di scha rge elec trod es. Be tween th ese , ne on f or

disch ar gi ng an d x eno n f or g ener ating ul tr aviolet r a ys are enclos ed. On e p ict ur e elem en t (pixel ) i s com po sed of Red, Green an d Bl ue (R GB) cell s. Th e c ell pi tc h is 0.36 mm h or iz ontal (1.08 m m per p ixel) by

1.08mm vertical.

As s hown in Fig.1 , t he cel l s are ar r ang ed fo r each R／G ／B c olour. A p ixel consists of each cell of R/G/B / colo ur.

The size of a c el l is 0. 36mm h ori zont al l y an d 1 .08m m v ert i cally.

Direction

Horizontal(H

V42PD20E

Ve rt ic al(V

1ST pixel

2nd pixel

767th pixel

line

768th pixel

line

1st pixel

arra

2nd pixel

arra

R G B R G B

RGBRGB

G BRG B

GBRGB

H 1.08mm

Pit ch of pixe l

Fig. 1 PIXEL (CELL) ARRANGEMENT

On e pixel

(1dot)

R cell G cel l

B ce ll

1023th pixel

arra

1024th pixel

arra

R GBRG B

RGB RGB

G BRG B

GBRGB

H 0.36mm

Pit ch of cel l

V 1. 08 mm

Pit ch of p ixe l

Pitch of cell

PIXEL FAULT

The re ar e two p ixel f aults - b rig ht fault an d d ark f ault - tha t are respe ctivel y d efin ed as f ollows.

(1) BRIGHT FAULT

In this pi xel fault, a c ell tha t sh ould no t li gh t orig inally i s light in g or fl ash i ng on and o ff.

For check ing thi s pi xel f ault, inpu t A LL BL AC K SC R EE N an d fin d o ut the c ell th at is lig hti n g or f lashin g on and of f.

(2) DARK FAULT

In thi s pixel faul t, a cell that sh ould light or i gin al l y is not ligh ti ng or not fl as hing o n and of f or lighti n g with the bright nes s twic e as b ri gh te r as originally ligh ting.

For check ing th is pi xel f au lt, in put 100% of eac h RG B c olour an d f ind out t he cell t hat is not ligh ting or n ot fl ash in g on an d off or lighting wit h the br i ght ness as bright er as orig inally l i gh ting.

No. 51955

V42PD20ES

(3) PIXEL FAULT S PECIFICATION

Screen display Criteria for number of faulted cell

Criteria for number of

consecutive faulted cell

Bright faultAll black screen

Red level 100% on entire screen

Gr ee n l ev el 10 0% on en tir e scr eenDark fault

Blue l eve l 10 0% o n ent ire scr een

(Note) A-zone : Center portion

(area enc losed by 1/4 verti call y f rom t he top a nd bot tom a nd 1/ 4 horiz ont all y fr om th e ri gh t and left s id es.)

B-zone : Other area

B zone

A zone

52.9cm

(Note) The c on s ecu tiv e p ixe l f ault t hat are di ag onal l y or in tensi v ely g enera ted s h al l be int erp r ete d a s f ollo ws :

A zone: 2 or less than 2 in each colour B zone: 3 or less than 3 in each colour

A zone: 3 or less than 3 in each colour B zone: 8 or less than 8 in each colour

(1/4H)(1/4H)

(1/4V )

2 or Les s th an 2

con secut ivel y

2 or Les s th an 2

con secut ivel y

→→→→ cons ecut ive 3

→→→→ cons ecut ive 4

No. 51955

INSTALLATIONS

V42PD20E

1. SAFETY PRECAUT ION FOR PDP OPERATION

(1) Do no t pr e ven t th e r adi at ion of he at fr om bac k, top and flan k

si des of a PD P .

Preve ntin g the ra di a tion of h eat f rom eac h side cau ses high te mp er atu r e w i thi n a PD P a nd m ay d am ag e the in ner c ircui t.

(2) Ins tal l a P DP in a p l ace where is well ven ti l ated .

Ambie nt t emper atur e sho ul d b e wi th in a r ang e of 0～～～～ 40℃℃℃℃ .

2. REQUIREMENTS FOR SETTING

The f ol l ow i ng m in imum sp ace mu st be kept wh en a PD P is installed.

(3) Ins tal l in not du sty p lace. If dust co ver s th e a ir in ta ke h oles ,

inside ventilation effect will reduce. Then, it may damage the

inn er ci rcu it . If the unit uses in such atmosphere, it will strongly require regu l ar clean ing or main ten anc e.

No. 51955

V42PD20ES

SPECIFIC SERVICE INSTRUCTIONS

PRECAUTIONS FOR PDP USE

1. PRE CAUTION DURING TRANSPORTATION

When this unit is delivered, the PDP body inside of the box will be subject to constant of gravitation under the rough handling

(thr ow ing , dr opp in g, etc. ) ev en th ou gh a ri gid bo x is used. In suc h a c as e, the PDP may b e da ma ged du ring tran sport ation . In o rd er to a void an acc i d ent d ur i ng tr a ns p ort atio n, ca re mus t be

tak en to sel e ct a r eliab l e carrier. Onc e a relia ble carrier is select ed, ad vis e them ho w to h an dle a PDP prop er l y d ur i ng tra nsp ortat i on.

In add ition, a PDP sho uld b e in sur ed for its p hys i cal da ma ge before ship ment.

Thi s pr od uc t is fr ag ile bec aus e glass is wi d el y used . Thus the follo win g r eq ui r em en ts fo r tr ans p or ta ti on s ho ul d be obs er ved.

(1) Do n't apply vibration and impact.

The glass of a PDP ma y be b ro ken when th e pac ka ge is

brought down on its side. When carrying the package, it must alway s be ha ndle d w i th t wo p erson s w it h due c are n ot to a pp ly

vi br ati o n and imp act on the p ackag e.

(2) Do n't lay a PDP on its side.

A PD P s h ou ld al w ays b e placed uprig ht d ur i ng both tr ans port ation a nd s afe keep i ng. Do n't la y it on its si de . The

p ane l of a PD P is very frag ile t o t he i mp act i n th e h or i zont al directi on.

When a car car r ies a PDP , loa d it on b oar d th e car in para lle l wit h th e mov i ng di r ect io n o f t he car . Don' t l a y seve ral PDP s

on e on t op an oth er. During s af ekee pi ng , don 't la y mor e tha n tw o PD Ps on e on to p

an oth er e v en if they a r e kept u pr igh t.

2. RETANED-IMAGE AND BURN ING

(1) W hen t he s am e pat ter n is di s pl a yed c ontin uou sly for many

h our s, t he burn ing of th e screen is occu rre d in the sam e mann er as for a CRT. T his will shorten the servic e life of a

PDP. I n orde r t o av o i d the b ur ni ng of th e s cr een, tu rn th e display off wh en not neces sary. Also take such oth er

measu res as scr ol lin g the scr een an d using a sc re en save r. In ad diti on , period ic all y d isp lay th e brigh tn es s re versal , t he

rever s a l t o t he c om ple me nt ary c ol ou r or th e i ns erti on of animated image - all these will make the display on the screen

un if or m. Sinc e the hi gh er br i gh tn ess m ay cau se th e b urn ing, us ers a re r eq ues t ed to us e n eut ra l colo ur s as much as

possible. Animated image will not cause the burning.

(2) W hen the scr ee n is switche d a fte r c ont in u ous di spla y, th e

reta in ed -i m ag e m ay be significan t beca use th e brigh tnes s of a cer tain porti o n b ecom es hi gh er th an th at of oth er por tio ns.

Thi s is c ause d by a p heno me no n in wh ich a sur f ace elect rica l disch ar ge of t he l i gh ted po rt ion i s m or e a c ti v at ed t ha n th e

n on- lig hted por ti o ns, r e s ul ti ng in h i gh er br i gh tness.

(3) This unit has functio ns such as “PIXEL SHIFT”, “COLOUR-

REVERSE” and “REFRESH”. They will reduce burning.

Please refer to th e in stru cti on book for d eta il.

3. INFR AR ED RAYS

Be caus e th e ne ar infrared r ays ( 80 0～1000 mm ) r a diat e fr o m t he

p ane l f ace , the ne ighb ori ng i nf rared ra y re mo te cont rolle rs, infr ar e d c om mu ni cati o n sys tem s, etc. may m al f unc tion. In th es e

case s, tak e a me as u r e to pre ven t the t roub l e t o b e c aus ed b y direct r ays (or r ef lecte d r ays) f r om t he scr ee n b y ch ang i ng t he

directi o n of the scr ee n fac e o r ke epin g a s afe dist ance b etw e en a PDP and othe r de vic es .

4. OPTICAL FILTER (FRONT FILTER)

(1) Don' t exp ose the opti c a l f ilte r d ir ec tl y to th e su n for a lo ng

period of time.

Exposing directly to the sun for a long period of time may ch ange th e s p ec ial prop er ty of th e op tical f ilter, re s ulti ng i n a ch ange of co lo ur .

(2) Don' t wipe t he o ptica l filte r wi th s olvent s such as b enz e ne ,

thin ne r, etc.

Wiping t he optic al f ilt er w it h s o l ve nt s such as b enz e ne, th i nn er, etc . m ay cau se ch ang e i n qu ali ty and pee l off the c oast in g on

th e su rf ace. Lightl y wipe t he opt ic al fi lt er with a s o ft cloth w it h l ess f luff y (e. g.

pu re fl a nnel).

(3)

Be caus e the su rf ace of t he optica l fil ter i s fr agi l e, don' t scr ub o r

hit it wit h a hard materia l.

5. PRE CAUTION DURING CHANGING OF MONITOR UNIT AR MOR PARTS

Extreme ca re mus t b e exer cised for a PDP whe n th e a r mor pa rt s

are c hange d.

(1) Sp ec i al att en ti on sh oul d be p aid no t to ap pl y pr essu re on th e

MO NI T OR U NIT gl ass surfac e dur in g t he w or k.

(2) Don' t t ouc h t he panel su rf ac e i n a ny way.

(3) W hen ch an gi ng t he M ONITOR UNIT arm or par ts ( re ar cover ,

fr on t p an el and o pti cal fi lter ), plac e t he p ane l ( PD P s i d e)

up side d own in pr i nc i ple . At thi s ti m e, a s u it ab le mat m us t b e us ed so as to preve nt th e fron t s ide f r om dam a ging . Ho we ver,

exce ssi ve ly s of t ma teri al ( e. g. blan ket ) s h oul d not be us ed f or this pur p ose in a ny wa y. If a blanket i s use d, th e s ur f ace of a

PDP is pr es surized by th e blank et when plac ing th e p anel up side do wn.

Under such a c on dition , th e PDP m ay be b roken du rin g the work.

6. OTHE R PRECAUTIONS

(1) Br ig h tne ss ch a nge in t h e scr een

In o rd er to sa ve t he power con sum ptio n, th e power is

con trolled ( w it h AP S f unction ) d epe nd ing on the brig htn ess of th e scr een. For th is, the br i ght ness ma y c han ge aft er a s h or t

tim e wh en the p ictur e of th e s cr een i s ch ange d. Howev e r, this ph en om en on is not a tr oubl e.

(2) Comp onent input setting

The component signals 1080i and 1035i are the same fr eq ue nci es. S o, th e u nit d oes n ot d etec t th e s i gn al s

automatically. In this c ase, set req uir ed s igna l by “HD SI GNAL MODE” in the

set up menu.

No. 51955

DISASSEMBLY PROCEDURE

SEPARATION

SEPARATING THE PDP MONITOR UNIT AND LOW ER BLOCK

[1] REMOVING THE BACK COVER

1. Rem ove the 5 screws marke d A a s sh own in Fig.2.

2. Rem ove the 2 screws marke d B a s sh own in Fig.2.

3. Rem ove the 3 screws marke d C a s sh own in Fig.2.

4. Remove the back cover toward you.

[2] RE M OVIN G THE SID E C OVER

5. Rem ove the 3 screws marke d D a s sh own in Fig.2.

6. Rem ove the 2 screws marke d E as shown in Fig.2.

[3] REMOVING THE BACK STAY

7. Remove the side cover.

8. Rem ove the 2 screws marke d F as shown in Fig.2.

[4] SEPARATING THE MONITOR UNIT LOWER BLOCK

9. Rem ove the 2 screws marke d G as sh ow n in F ig.2.

10 . Se para te the MO NI TOR UNIT and L OWER BL OC K

as s hown in Fig. 2.

＊ This separation should be performed by 2

or more persons.

MONITOR

NIT

LOWER BLOCK

V42PD20E

SI DE COVER

BACK COVER

RECEIVER

MONI TOR UNIT

SI DE COVER

××××

(

(××××2)

(×××× 2)

Fig. 1

BACK STAY

××××

(

BACK COVER

RECEIVER

NIT

××××

(

××××

(

Fig. 2

No. 51955

(××××5)

V42PD20ES

LOWER BLOCK

REMOVING THE LOWER BLOCK

[NOTE]

The peri p her y of the rece iver unit is a woo de n cabin et. Wh en th e

receiver unit is removed, hold it up slightly with both hands and pu t a mat o r th e l i ke ( card boa r d, etc.) u nde r the recei v er un it s o

as to preve nt scr atch i ng the cab inet du r in g the remova l wor k. Then remove the receiver unit by wit hdrawing it toward you.

[1] REMOVING THE RECEIVER UNI T

1. Rem ove th e 4 screws marked A as s h ow n i n Fig.3.

2. Slight ly rai se th e bo th si des o f th e rec eiver uni t b y hand an d remove the receiver unit toward you.

＊

Thus the connector should be securely inserted when the receiver unit is installed again.

3. Unp lu g t he con nect or s fr om th e r e c eiver uni t.

4. Withdraw the receiver unit backward.

[2] REMOVING THE CASE COVER OF THE RECEIVER UNIT

• Take out th e RECEIVER UNIT.

1. Rem ove th e 10 screws marked A as sh own i n F ig .4.

2. Withdraw t he case cover toward you from ch assis case.

[3] REMOVING THE AV PLATE AND CHASSIS BEAM

• Take out th e RECEIVER UNIT.

• Take out th e CASE COVER.

1. Rem ove th e 6 screws marked B as s h ow n i n Fig.4.

2. Unp lu g t he con nect or s fr om th e AV PLATE

3. W ithdra w t he AV PLATE toward you .

4. Rem ove th e 2 screws marked C as shown in Fig. 4.

5. Withdraw t he chassis beam toward you from chassis case.

[4] REMOVING THE UNDER PANE L (L&R)

•

T ake out the RECEIVER UNIT.

1. Rem ove th e 2 screws marked D (L& R) as sh own in Fig.5.

2. Rem ove th e 4 screws marked H ( L& R) as sh ow n i n Fig.5.

3. As sh own Fig.5, remo ve th e un de r pa ne l (L& R ) i n th e arr ow direction marked I.

[6] R EM OVIN G THE SP EAKER NET / CE NTER PANEL / FRONT

SW PWB / S W LEVER

1. R em ove th e 4 screws marked C (L& R si d e) as sh own in Fig.5.

2. The n w it hdraw the SPEA KER NE T to ward you.

3. R em ove th e 4 screws marke d E as shown in Fig.5.

4. The n r emove th e C E NTE R PAN EL / FRONT SW PWB & SW LE VER as sho wn in Fig.5.

[7] REMOVING THE SPEAKER

• Take ou t the SPEA KER NE T.

1. R em ove th e 4 screws marke d F as shown in Fig.5.

2. F ol low the sa me st eps when re mo ving th e oth er han d sp eake r.

3. R em ove th e 4 screws marke d G as sh ow n in F ig.5.

CHECKIN G THE PW BOARD

1. To check the back side of the PW BOARD.

1) Pull out the chass is .

2) Erect the chas sis vertica lly so that you can easily check the

b ack side of the PW B OARD .

[CAUTION]

When er ect in g t he PW B OARD, b e caref ul so that th ere will be n o

con tact ing with ot her PW BOAR D .

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

prop er l y con nected .0

When co nduc ti ng a ch eck w i th p ower su ppli ed , b e sure to c onfirm

th at t he EAR TH WI RE is connected to the PW BOA RD a nd

others PW BOAR D.

WIRE CLAMPIN G AND CABLE T Y ING

1. Be sure t o cl a mp th e wir e.

2. N ever r em o v e th e cable ti e use d f or tyi ng the wi re s to gethe r.

Should it be inadverten tly removed, be sure to tie the wires with a new cable tie.

[5] REMOVING THE FRONT CONTROL PWB

•

T ake out the RECEIVER UNIT.

4. Rem ove th e 3(2+1) scr ews marked A as shown in Fig.5.

5. Rem ove the 6 screws marked B on th e F R ON T CO NTROL

PW B as sh ow n i n Fig.5.

＊ If nec essar y, t ak e off th e wire cl am p, con ne ctors, etc .

No. 51955

SP EAKER BOX

CAS

)

(××××4)

RECEIVER UNIT

Fig.3

CONNECT OR

RECEIVER UNIT

CASE

VE R

(××××2)

CHASSIS BE A M

(×××× 10 )

Fig.4

V42PD20E

CHASSIS

(××××6)

AV PLA T E

(××××2)

SP EAKER (L&R

××××

(

UNDER

SP EAKER

(×××× 2)

(×××× 1)

FRONT C ONT RO L PWB

CENTER PANEL

SW LEVE R

FONT SW PWB

(××××4)

SP EAKER NE T (R

(×××× 2)

××××

(

(×××× 6)

××××

(

2+1)

(××××2)

Fig.5

UNDER PANEL (R

××××

(

No. 51955

SUB WOOFER SP EAKER

V42PD20ES

MONITOR UNIT

REMOVING THE MONITOR UNIT

[1] REMOVING THE REAR COVER / SIDE COVER

＊ Take out th e MONITO R UNIT. ＊

Take out the RECEIVER UNIT .

1. Rem ove th e 18 screws marked A as sh own i n F ig .1.

2. Rem ove th e 17 screws marked B as sh own i n F ig .1.

3. Rem ove th e 2 screws marked C as s h ow n i n Fig.1.

4. Rem ove th e 3 screws marked D as s h ow n i n Fig.1.

5. Withdraw the REAR & SIDE COVER toward you. ＊ If nec essar y, t ak e off th e wire cl am p, con ne ctors, p l ug. etc .

[2] RE M OVIN G THE SW PW B COVER

• Take out th e RE AR COVE R / SIDE C OVER.

1. Rem ove th e 2 screws marked A a s sh ow n i n Fig.2.

2. Rem ove th e 2 screws marked B as s h ow n i n Fig.2.

3. W ithdra w t he SW PW B CO VER to ward you .

[3] REMOVING THE SPEAKER / TERMINAL COVER

•

Take ou t th e RE AR COVE R / SIDE COVER.

•

Take ou t th e SW PW B C OV ER.

1. Rem ove th e 6 screws marked C as s h ow n i n Fig.2.

2. Rem ove th e 4 screws marked D as s h ow n i n Fig.2.

3. W i thdraw the S PE AKER an d TE RMINA L CO VER to ward

you.

REAR COVER

(××××17 )

INPUT TER M IN AL C OVER

PDP UNIT

××××

(

Fig.1

SI DE COVER

POWER S W

(×××× 3)

PDP UNIT

(××××2)

××××

(

(××××5)

××××

(

18 )

(××××6)

[4] RE M OVIN G THE IN PUT T ERMINAL CO VER

•

Take ou t th e RE AR COVE R / SIDE COVER.

1. Rem ove th e 5 screws marked E as shown in Fig.2.

2. Rem ove th e 2 screws marked F as shown in Fig.2.

3. Pu ll out the INPU T TE RMINAL COVE R back wa rd .

[5] REMOVING THE PDP UNIT

•

Take ou t th e RE AR COVE R / SIDE COVER.

•

Take ou t th e SW PW B C OV ER.

•

T ake out the TERMINAL COVER.

•

T ake out the INPUT TERMINA L COV ER.

1. Rem ove th e 6 screws marked A as s h ow n i n Fig.3.

2. Take o ut t he MONITOR UNIT f ro m the FR ONT PANEL

AS S’Y(wit h OP TICAL FI LTER) .

＊ The remo ve of P DP UNIT sh ou ld be per f or me d by 2 or mor e

persons.

CAUTION : Do not dama ge the gas in let

If t he gas in l et is dama ged, th e PDP UN IT mus t be re placed. So extreme care should be taken not to damage the gas

inle t when y ou remove the PDP UNIT.

！！！！

××××

(

SW PWB C OVER

PDP UNIT

GAS I NLET

FRONT PANEL ASS’Y

TERMINAL COVER

(××××2)

Fig.2

(××××6)

OPTICAL FILTER

Fig.3

No. 51955

REPLACEMENT OF MEMORY ICs

1. MEMORY ICs

This TV uses memor y IC. In the memory IC, th er e are memori zed data for c orrec tly op erati n g t he vi deo and defl ec ti on circu i ts.

When r epl ac ing th e memory IC, b e su r e t o u se an IC w r it ten w it h t he initial values of data.

2. PROCEDURES FOR REPLACING MEMORY ICs

PROCEDURE

SE RV I CE ME NU

1. IF 2. V/C

3. AUDIO 4. DEF

5. VSM PRESET 6. STATUS

7. PIP 8. - - -

9. SHIPPING (OFF) 0. BUS FREE

1-0 : S ELECT : EXITi

V42PD20E

(1) Power off

Switch the p ow er of f and di sco nnect t he pow e r pl u g.

(2) R epla ce ICs.

Be sure t o use a m em or y IC w r itt en wit h the in it ial set ting d ata.

(3) Powe r o n

Connect th e pow er p lu g and switc h t he pow e r on.

(4) Check and s et SY STEM CONSTANT SET

" The adjustment should not be done without signal.

1) Pr ess th e INFORMATI ON key and the MUTING key of the REMO TE CONTROL UNIT simultaneous ly.

2) The SERVICE MENU screen of Fig. 1 will be displayed.

3) While th e S ERVIC E ME NU is dis pl a y ed, press t he

INFORM ATIO N key a nd MUTING key s imul t aneou sly, and th e SYSTEM CONSTANT SET screen of Fig. 2 will be displayed.

4) Check th e se tting va lues of the S YSTEM CONSTA NT SET of Tab le 1. If val u e is diff erent, selec t th e sett ing it em with th e

FUNCTION ▲▲▲▲ / ▼▼▼▼ key, a nd set th e c orrect value w ith th e FUNCTION / key.

5) Pr ess the MENU(OK) key to memorize the setting value.

6) Pr ess the INFORMATION key, and re tur n to t he no rm al sc r e en.

Fig.1

SY STEM C O N STAN T S ET

1. DESTINATION

+ : STORE : EXIT

Fig.2

2. DIGIPURE PRO

3. PIP

4. PI C & TEXT

5. TDA9178

6. FLAT

YE S 1 TUNER

YE S YE S YE S

REMOTE CONTROL UNIT KEY ASSIGNMENT

MUT ING

POWE R Ke

(5) Se tt in g of re ceive chann e ls

Se t th e r ec eiv e ch anne l.

For setting , r ef er to the OPE RATING INS TRUCTIONS.

(6) Setting of SERVICE MENU

Ve rif y the set ting it ems of the SE R VICE ME NU of Tab l e 2, and r es et where n ecessary.

For setting , r ef er to the SE RVIC E ADJUSTMENTS.

(7) U ser se tting s

Check th e us er s ett ing values of T ab le 3, and i f s e tti ng valu e i s diff erent , set th e c orrec t val u e.

INFORMATION

FUNCTION

▲/▼

ME NU

FUNCTION

For setting , r ef er to the OPE RATING INS TRUCTIONS.

No. 51955

V42PD20ES

SETTING VALUE OF SYSTEM CONSTANT SET (TABLE 1)

Setting item Setting content Setting value

1. D ESTINATION E

2. Dig i Pur e YE S

3. PIP 1 TUNER

4. PIC & TEXT YE S

5. TD A917 8 YE S

6. FLAT YE S

EK EU EI

YE S NO

1 TUNER 2 TUNER

YE S NO

SERVICE MENU SETTING ITEMS (TABLE 2)

Setting item Setting value Setting ite m Setting value

1. IF 1. VC O

2. ATT [ Do no t adjust]

2. V / C 1. R. GAIN

2. G. GAIN

3. B. GAIN

4. BRIGHT

5. CONTRAST

6. COLO UR

7. HUE

8. SHARP [ Don’t move]

9. VCO ADJUSTMENT 10 . VIDEO AGC [Don’t move ] 11 . SYNC S LICE [Don’t move] 12 . A MOV IE [ Don’t mo v e]

4. DEF 1. V-SHIFT

5. VS M PRESE T COOL NORMA L WARM

2. V-SIZE

3. H-CENT

4. H-S IZ E

1. CONT.

2. BRIGHT

3. SHAR P

4. COLO UR

5. HUE

6. R . GAIN

7. G. GAIN

8. B. GAIN

3. AUDIO

[Do not a dju st]

1. ERR LI MIT

2. A2 ID THR

7. PIP

[Do not a dju st]

1. PIP VC O AD J

2. PIP VI D AGC

3. PIP SN C SL I

No. 51955

USER SETTING VALUE (TABLE 3)

Setting item Setting value Setting item Setting value

SUB POWER ON VOLUME Appropriate sound volume

SHIPPING CHANNEL PR1 DISPLAY INDICATED

V42PD20E

PRES ET CH AN NEL

PICTURE SE TTING EX T SETTI NG

TINT (COLOUR TEMP.) NORMAL ID

PICTURE FEATURES FEATURES

DIGITAL VNR

Digi Pure

COLOUR S YST E M

4:3 AUTO ASPECT

PIP POS ITION

TONE

BALANCE

TV S PEAKER

3D SURROUND

See O PER ATING INSTRUCTIONS.

AUT O

TV : Ac co rd ing t o pr eset CH

EXT : AUTO

PA NO RA MI C

RIGHT BE LOW

SOUND SET TING INSTALL

CENTER

L / R

OFF

ZOOM MODE PANORAMIC

BLANK

S-IN

DUBBING

SLEEP TIMER

BLUE BLACK

CHILD LO CK

DECODER (EXT-2)

LA NG UA G E

EDIT

BLANK

EXT- 1→EX T-2

OFF

ID : No.0000, AL L CH : OFF

＊

Press the “0” key in CHILD LOCK menu to find to ID No.* ***.

ALL CH : OFF

ENGL ISH

PR CHANNEL ONLY

OTHERS : BLANK

No. 51955

V42PD20ES

REPLACEMENT OF CHIP COMPONENT

! CAUTIONS

1. Avoid heating for more than 3 seconds.

2. Do n ot ru b the elect ro des an d the r esist p arts of the p att ern.

3. W hen r em oving a chip par t, mel t th e s older ad equately.

4. Do n ot reuse 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 ol der i ng i r on with a thi n poin ted e nd of it.

2. A 3 0 w s older i ng iron is r ec ommend ed for easily 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.

#### Trans isto rs, d io des , va ria bl e r esist or s, etc

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

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.

#### Trans ist ors, diodes , va ria bl e r esistor 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.

SOLDE R SO LD ER

(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.

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

pattern.

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

No.51955

SERVICE ADJUSTMENTS

BEFORE STARTING SERVICE ADJUSTMENT

1. Ther e ar e 2 w ays of ad ju st in g this TV: One is wi th t h e

REMOTE CONTROL UNI T and the other is the conventional

method using adjustment parts and components.

2. The setting (adjustment) using the REMOTE CONTROL

UNIT is made on the ba sis of th e initial se tting values . Th e se tting va lu es whic h adjust the sc ree n to the o p t imum

condition can be different from the initial setting values.

3. Make s ur e th at conn ect i on i s c orrec t ly ma de t o AC p ower

source.

4. Tur n on th e pow e r of th e T V and m eas u r in g i ns tr um en t for

warmin g up f or at least 30 min ut es bef ore sta rt in g adju stm ent .

5. If th e r ec ei ve or i np ut sig nal is not sp eci fi ed , use t he m ost

ap pr op ri a te s ig na l f or a dj ust me nt.

6. Nev er tou ch p ar ts ( s uch as var i ab le r es ist ors, tr an s for m er s an d condensers) not shown in the adjustment items of this service

adjustment.

7. Pr ep ar atio n f or ad j ustm en t (pr es etti n g) Unles s oth erw is e sp eci fi ed in th e a dj us t ment it em s , p res e t th e

follo win g fu nct ions with th e REMOTE CONTROL UNIT

●

USER M ENU SE TT ING

TINT / CONTRAS T / BRIGHT

TR EBL E / BASS / BA LANCE CEN TER

V42PD20E

Setting Item Setting Position

Z OOM PA NO RA MI C

PICTURE MODE (VSM) NORMAL

/ SHARP / COLOUR

SLEEP TIMER OFF

ECO OFF

CENTER

MEASURING INSTRUMENT AND FIXTURES

1. DC voltmeter (or digital voltmeter)

2. Oscilloscope

3. Sign al g en erat or (P attern g en erat or ( D igit al & Anal og) )

[PAL / S ECAM / NTSC]

4. Remote control unit

ADJUSTMENT ITEMS

< M ONI TO R >

Ch eck ing it em

•

Adju stment of PO WER VOL TAGE

< RE CE I VE R >

•

Checking of AFT CW VCO

VS M pr ese tt in g

•

Setting of VS M PR ESE T

V/C c ircu it adjust ment

•

Adjustmen t of WHI TE BA LANCE ( H i gh Li gh t)

•

Adju stment of SU B BR IGH T

•

Adjustment of CONTRAST

• Ad justm en t of SUB CO LOURⅠ

• Ad justm en t of SUB CO LOURⅡ

• Ad justm en t of SUB HUEⅠ

• Ad justm en t of SUB HUEⅡ

•

Check ing of MAIN COLOUR DECODER VCO

• Checking of SUB COLOUR DECODER VCO

! DEFLECTION circuit adjustment

•

Adju stment of V. POSITION

• Ad justm en t of V. SIZE

• Ad justm en t of H. PO SITIO N

• Ad justm en t of H. SI ZE

NOTE

This model (AV42PD20 ES) consist s of a MONITOR and a RECEIVER. However, the MONI TOR and RECEIVER cannot be activated

sep arat ely. T ryi ng the s epa ra te ac ti vation of th e MO NITOR o r RECEI VER may c ause a tr ou ble. Always tr y to ac ti vate th e MONITOR and RECEIVE R as a uni t d ur i ng a s ervic e rep air.

No. 51955

V42PD20ES

ADJUSTMENT PART LOCATIONS

RECEIVER

! MONITOR (PDP)

No. 51955

V42PD20E

BASIC OPERATION SERVICE MENU

1. TOOL OF SERVICE MENU OPERATION

Operate the SERVICE MENU with the REMOTE CONTROL UNIT.

2. SERVICE MENU ITEMS

With the SERVI CE MENU, var i ou s sett ings ( ad ju s tm en ts) c an b e m ade , a nd th ey are b r oad ly classif i ed i n th e f ol lowing ite ms of set tings

(adjus tments ): (1) 1. IF ･･･････････････････････ This mode adjust s the se tting valu es o f th e IF circui t.

(2) 2.V /C (3) 3.AUDIO ･･･････････････････ This mode adjusts the setting values of the multiplicity SOUND circuit.

(4) 4. DEF (5) 5.V SM PRESE T ･････････････ T hi s m ode adjust s th e in iti a l s ett in g va lues of CO OL, NORM AL and W ARM .

(VSM : Video Status Memory)

3. BASIC OPERATION OF SERVICE MENU

(1) How to enter SERVICE MENU

Press the IN FORM ATI ON key and th e MUTING key of the

(2) Selec tion of SUB MENU SCREEN

Press one of keys 1

SERVICE MENU

･･････････････････････

･････････････････････

REMO TE CONTROL UNIT (Fig. 2) simultaneously, and the

SERVICE MENU screen of Fig. 1 will be displayed.

～

5 (Fig. 2) of the REMOTE CONTROL

UNIT and select the SUB MENU SCREEN (See Fig. 3), form the SERVICE MENU.

→

SUB ME NU

This mod e adjust s the se tting valu es o f th e VIDEO / CHROMA circu it.

This mod e adjust s the se tting valu es o f th e DEFLECTION cir cuit.

1. IF

2. V / C

3. AUDIO

4. DE F

No t t o ad just

5. VSM PRESE T

6. ST ATU S

7. PI P

8. - - -

No t t o ad just

9. SHIP PING (OFF )

0. BUS S F REE

SE RVICE MENU

SERVICE MENU

1. IF 2. V/C

3. AUDIO 4. DEF

5. VSM PRESET 6. STATUS

7. PIP 8. - - -

9. SHIPPING (OFF) 0. BUS FREE

1-0 : SELEC T : EXITi

Fig.1

REMOTE CONTROL UNI T KEY ASSIGNMENT

MUT ING

INFORMATION

FUNCTION

▲/▼

POWE R ke y

NUMBERS

(ten) key

ME NU/ O

FUNCTION

Fig.2

No. 51955

V42PD20ES

)

SERVICE MENU FLOW CHAR T

Don't se lect under the adjustm ent as this menu is s et in ON aft er the

inspection.

SUB MENU

SE RVICE MENU

SERVICE MENU

1. IF

3. AUD IO

5. VS M PR E S ET

7. PIP

9. SHIPPING(OF F)

1-0 : SELECT i : EXIT

2. V/C

4. DEF

6. ST ATUS

8. - - -

0. BUS FREE

Do no t adjust this Item.

1. V-SHIFT

2. V-SIZE

3. H -CENT

4. H -SIZ E

COOL NORMAL

WARM

1. CONT.

2. BRIGHT

3. SHARP

4. COLOUR

5. HUE

6. R. GAIN

7. G. GAIN

8. B. GAIN

4. DEF

DE F F ULL

1. V- SHIFT

: STORE i : EXIT

- / +

5. VS M PR E SET

VSM PRESET NORMAL

1.CONT

: STORE i : EXIT

- / +

＊＊＊＊DO NOT ADJUST

6. STATUS

STATUS

1.SOFT

: STORE i : EXIT

- / +

** **

****

(****)

1.IF

IF SER VICE M ENU

1. VCO

2. AT T ON / OFF

1-2 : SELECT i : EXIT

1.VCO (CW

VCO (CW)

MAIN TO O HIGH

ABOVE REF JUST REF

BELOW REF TO O LOW

**....**

****

MHz

i : EXIT

2. V/C

V/C PAL

1. R GAIN

- / +

: STORE i : EXIT

****

Do no t adjust this Item.

1. R . G AIN

2. G . GAIN

3. B . G AIN 4 . B R IG H T

5. C ONT.

6. C OLOUR

7. H UE

8. SHARP

9. VCO ADJ

10. VID AGC

11. SYNC SLI

12. A MO VIE

3. AUDIO

AUDIO

1. ERR LIMIT 0AH

C AD BITS =

: STORE i : EXIT

* ***** **

1. ERR L IMIT

2. A2 ID THR

1. PIP VCO ADJ

2. PIP VID AGC

3. PIP S NC SL I

1.PIP VC O ADJ

: STORE i : EXIT

- / +

7. PIP

PIP

*****

- / +

Fig.3

No. 51955

(3) Setting methods

" Meth od of Set ting 1. IF as [V CO]

(The adju s tm ent sho ul d not b e done wi tho ut s ig na l.)

① 1 K ey ･････････････････････････ Se lect 1.IF. ② 1 K ey ････････････････････････ Select 1 . VC O (CW)

Check the arrow p osition b etwee n the “ABOVE REF. and BEL OW REF.

③ IN FORMATION K ey ････････････ Retu rn t o the SERVICE MENU screen.

" Meth od of s ett in g 2.V/C, 4.DEF and 5.V SM PR ES ET .

① 2 ～5 K ey･･････････････････････ Select one from 2. V/C , 4. DEF an d 5. VS M PRESE T. ② F UNCTION U P/ DOWN K ey ･･････ Select s etting i tems. ③ FUNCTION LEFT/RIGHT K ey････ Set (ad just) th e se tti ng valu es o f th e setting it ems. ④ MENU (OK) Key ･･･････････････ Memorize the setting value.

(Bef ore st orin g t he sett in g values in m emor y, do not pres s th e C H , T V, POWE R ON / OFF k e y

- if you do, t he valu es wi ll n ot be s tor ed i n me mo r y. )

⑤ IN FORMATION K ey ････････････ Ret urn to the SE RVICE ME NU scree n.

" Do n ot adjust 3. AUDIO, 6 . S TATU S, 7. PIP, 8. --- , 9 . S HIPPI NG (O FF) and 0. BUS FREE fu nction.

V42PD20E

(4) Rele as e of SER V ICE M E NU

1) After complet ing the ad justmen t, r et urn to the S ERVICE ME NU, then again press th e INFORMATION key to return to the normal

screen.

No. 51955

V42PD20ES

INITIAL SETTING VALUE OF SERVICE MENU

1. Ad justment of the SERVICE MENU is made on the basis of the initial setting values ; however, the new setting values which set the screen in its optim um condition may differ from the initial setting.

2. Do no t change the initial setting values of th e setting (Adjustment) items not li sted in “ ADJUSTM ENT”.

1.IF

SETTING ITEM Initial setting value

1.V CO

2.ATT O N/OFF Do n ot adjust th i s item.

2.V/C (VIDEO / CHROMA) ( is adjus t ment not to requ i re d )

Colour syst em

Setting item

1. R. GAIN -15

2. G. GA IN -15

3. B. GAIN -15

4. BR IG HT 20

5. CONT RAST 0

6. COLOUR -10

7. HUE 01 1

8. SHARP 0

9. VCO ADJUSTMENT Automatically optimized after adjustment

10 . VI DEO AGC 00

11 . SY NC SL ICE +07

12 . A. MOVIE 01

PA L SE C AM NT SC

Prop er valu e b y adjustmen t.

Se e “ad j ustm en t of VCO ” co ntents

Initial setting value

3.AUDIO (Do not adjust)

Setting item Variable range

1. ERR LIMIT 00H～FFH 10

2. A2 ID THR 00H～FFH 19

4.DEF ( is adjust ment not to requ ire d )

Setting item

1. V-SHIFT -03

2. V-SIZ E 00

3. H-CENT -06

4. H-S IZE 00

Initial setting value

(Fixed value )

VAL UE

FULL

50 Hz p

No. 51955

5.VSM PRESET

VS M pr ese t mo d e

COOL NORMAL WARM

Setting item

1. CONT . +12 + 12 00

2. BRIG HT 00 00 00

3. SHARP -12 -12 -12

4. COLOUR 00 00 -01

5. HUE 00 00 00

6. R . G AIN 00 00 00

7. G. GAIN 00 0 0 00

8. B. G AIN 00 00 00

7.PIP ( i s adjust ment not to requ i re d )

Initial setting value

Setting item

PAL SE CAM

V42PD20E

NT S C

1. PIP VC O ADJ

2. PIP VI D AGC 00

3. PIP SN C SLI +07

No. 51955

V42PD20ES

JU S

(AFC)TOO LO

this ite

arro

ADJUSTMENT

■ MONI TOR

Item

Ad j ust men t of POWER VOLTAGE

Measuring

instrume nt

DC voltmeter

Signal generator

Test point Adjustment part Description

TP-1 (+5V) TP-2 (####)

TP-3 (+ 17 0V) TP-4 (+ 60V)

VR1 (+5) VR3 (+17 0V )

VR4 (+60 V)

＊＊＊＊ Ad just ment of Vs(+17 0V ) v olt age.

1. Input the colour bar si g nal t o RGB inpu t te rminal .

2. Con nect the d ig ital vol t meter across TP3 an d TP 2 ( #).

3. Ad jus t th e VR 3 to s et th e v ol ta ge wi thi n ± 1V of th e volta ge (V s as s hown on th e SE RIAL L ABEL) de signe d f or the PDP mo dul e.

＊＊＊＊

Adjustment of Vd(+60V ) voltage.

1. Input the colour bar si g nal t o RGB inpu t te rminal .

2. Con nect the d ig ital vol t meter across TP4 an d TP 2 (#).

3. Ad jus t th e VR 4 to s et th e v ol ta ge wi thi n ± 1V of th e volta ge (V s

as s hown on th e SE RIAL LA BEL) de signe d f or the PDP mo dul e.

＊＊＊＊ Ad just ment of +5V v o lt ag e.

1. Input the colour bar si g nal t o RGB inpu t te rminal .

2. Con nect the d ig ital vol t meter across TP1 an d TP 2 ( #).

3. C onf irm that the vol ta ge o f th e TP 1 an d TP2 (#) ha ve bec ome

5.1 V±0 .1V . If not , adjust t he VR1 a t th e + 5V ADJ of the POW ER

PWB so that the voltage become 5.1V±0.1V.

■RECEIVER

Check ing of AFT CW VCO

Remote control unit

IF SERVICE MENU

1. V CO

2. A TT O N/O FF

1-2 : SELECT

VCO M ENU

VCO(CW)

TOO H IGH ABOVE REF JUST REF BELOW REF

TOO LOW

1. IF

Fig.1

Fig.2

i : EXIT

****

MHz

i : EXIT

1.V CO

Do no t sel ect

YE LLOW

" Und er n orm a l c ondi tions, no ad just me nt is r e quired

confirmation adjustment.

1. Se lect 1 .IF from the SERV ICE M ENU.

2. The n se lect 1.VCO from th e 1.IF S ERVICE ME NU (Fig.1) .

3. Recei v e an y bro adc ast ( 55 .75M Hz or 21 6.00MHz i s b est) .

4. In th e VCO ad jus tm ent scree n, th e yell ow al l ows poi nt ( Fig.2) to

th e ch ar ac t ers. C hec k the yellow allow posi tio n wh er e poi nt ed to the character from “ABOVE REF” to “BELLOW REF” (Fig.2 &

Fig.3).

＊Th e arr ow p os i ti on menu AF C volt age leve l.

TOO HIGH

ABOVE R EF.

T REF.

BELO W R EF.

Fig.3

No. 51955

VSM PR ESET S ETTI NG

V42PD20E

Item

Setting of VS M PRESET

Measuring

instrume nt

Remote control unit

Test point Ad justment part Description

1. CONT.

2. BR I G HT

3. SHARP

4. COLOUR

5. HUE

6. R. GAIN

7. G. GAIN

8. B. GAIN

1. Pr es s t he MEN U ( OK) key an d s elect COOL m od e wit h th e

remote control unit.

2. Se lect 5 .VSM P R ESET fr om th e S ER VIC E ME NU.

3. Ad ju s t the FUNCTIO N ▲ / ▼ a nd / key to b rin g th e set val u es of 1.CON T ～ 8 .B G AIN to th e in itia l settin g valu es as

sh own i n the b efore table.

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

5. Respectively select the VSM PRESET mode for NORMAL and WAR M, an d make simi l ar a dj ust me nt as in 3 abo ve.

6. Press the MENU (OK) key and memorize t he set value .

★ Refer to OPERATING INSTRUCTIONS for the PICTURE

MO DE .

V/C (VIDEO/CHROMA) CIRCU IT ADJUSTMENT

●●●● The setting (adjustment) using the REMOTE CONTROL UNIT is made on the basis of the initial setting values.

●●●● The setting values which adjust the screen to the optimum condition can be different from the initial setting values.

Item

of WHITE BALANCE

(Hi gh-Light)

Ad j ust men t of

SUB BRIGHT

Ad j ust men t of SUB

CONTRAST

Measuring

instrume nt

Signal generator

Remote control unit

Test point Ad justment part Description

1. R. GAIN

2. G. GAIN

4 .BR IG HT 1. R eceive any br o adc ast.

5.CONTRAST 1. R eceive a PAL colo ur ba r s i gna l.

" Set the PICTURE MODE to NORMAL.Ad j ust men t

1. R eceive a bl ack a nd w hi te si gn al ( colour off ).

2. Select 2 . V/ C from th e S ERVICE MENU.

3. Modi f y 1.R . GAIN an d 2.G .GA IN valu e to s et th e w hi te b al a nc e

( high ligh t ).

4. Press the MENU (OK) key and memorize the set value .

5. C ha nge t he c on trast and b rig htn ess u p and d ow n with t he remote c on trol u nit fr om Low –l i ght to Hig h –light , and chec k t ha t

th e trac kin g of th e wh it e bala nce is good.

2. Se lect 2 .V/C f rom the SE RVICE MEN U .

3. Select 4.BRIGHT with the FUNCTION ▲/▼ key.

4. Set the initial setting value with t he FUNCTION / key.

5. If th e brightn ess i s not the best with the initial se tting value, make fine adjustment until you get the best brightness.

6. Press the MENU (OK) key and memorize the set valu e.

2. Sw i tch t he s ub po wer SW to OF F & O N.

3. Se lect 2 .V/C f rom the SE RVICE MEN U .

1. Select 5.CONTRAST with the FUNCTION ▲/▼ ke y.

5. Set the initial setting value with t he FUNCTION / key.

6. If the co ntrast is not the best with th e in itial se tting val ue, make fine adjustment until you get the best contrast.

7. Press the MENU (OK) key and memorize the set valu e.

No. 51955

V42PD20ES

Item

Ad j ust men t of SUB

COLOURⅠⅠⅠⅠ

Measuring

instrume nt

Remote control unit

Test point Ad justment part Description

6.COLOUR

SUB POWER key

[Method of adjustm ent without measuring instrument]

< PAL COLOUR >

1. Recei v e PA L broad cast.

2. Se le ct 2 .V/C f rom the SE RVICE MENU .

3. Se lect 6 .COLOUR with th e FUNCTION ▲/▼ key.

4. Set the initial s etting value for PAL COLOUR wit h the FUNCTION / key.

5. If the co l our i s no t th e be st w it h th e i ni ti a l se t v alu e, m ake fine adjustment until you get the best colour.

6. Press the MENU (OK) key and memorize the set value.

< SECAM COLOUR >

1. R eceive a SECAM b r oadc as t.

2. M ak e fi ne adj us tm en t of SEC A M COL OU R in th e sa me m an ner

as f or a bove.

FUNCTION

NUMBERS key

( INFORMATION ) key

MENU ( OK ) key

▲▲▲▲/▼▼▼▼

& / key

< NT SC 3. 5 8 C OL O UR >

1. Input a NTSC 3.58MHz CO MPOSITE V IDEO signal from the

EXT t erminal .

2. M ake s imi l ar fi ne adjus tm ent of N T SC 3. 58 CO LOUR i n t he

sam e mann er as f or a bo ve .

< NT SC 4. 4 3 C OL O UR >

1. Input a NTSC 4.43MHz COMPOSITE VIDEO s ignal from the

EXT t erminal .

2. Make similar fine adjustment of 4.43 COLOUR in the same

mann er as fo r abo v e.

No. 51955

+ 92 hidden pages

JVC AV42PD20ES Schematic

Specifications and Main Features

Frequently Asked Questions

User Manual