JVC AV-32F703/Y, AV-32F713/Y, AV-32F803/Y Service Manual

SERVICE MANUAL

COLOR TELEVISION

AV-32F703 AV-32F713 AV-32F803

BASIC CHASSIS

RM-C 326G RM-C326 AV -3 2F70 3

AV -3 2F71 3

[RM-C 325G] AV -3 2F80 3

AV-32F703 AV-32F713 AV-32F803

! SPECIFICATIONS ････････････････････････････････ !

SAFETY PRECAUT IONS

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

! HOW TO IDENTIFY MODELS ････････････････････････････････ !

MAIN DIFFERENCE LIST

! FUNCTIONS ････････････････････････････････ ! SPECIFIC SERVICE INSTRUCTIONS ････････････････････････････････ !

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

! PARTS LIST ････････････････････････････････

★ OPERAT ING INSTRUCTIONS ★ STAND ARD CIRCUIT DIAGRAM ････････････････････････････････

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

････････････････････････････････

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

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

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

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

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

････････････････････････････････

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

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

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

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

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

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

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

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

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

････････････････････････････････

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

･････････････････････････････ 4

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

････････････････････････････････

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

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

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

･･････････････････････････････ 12

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

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

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

･････････････････････････ 2- 1

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

･･････ 2

････････････

････････････ 4

････････････････････････

･･･････････ 6

･･････････････････････

･･････････････････････ 8

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

･･････････ 33

････････････････････

No.520 04

Jun. 2002

V-32F703

V-32F713 V-32F803

SPECIFICATIONS

Items Cont e nts

Dimensions (W

Mass 14 0.8 Ibs ( 6 4.0 kg)

TV System

and C olor S yste m

TV Receiving Channels

and Frequency

CATV Receiving Channels

and Frequency

Intermediate Fr equency Vide o IF Car rier

Color Sub Carrier 3.58MHz

Power Input 12 0V AC , 60H z

Power Consumption 16 0W

Pictur e Tube 32 ” (8 0cm ) M ea sured Diag on al l y

Hi gh Vo l t ag e

Speake r

Audio Power Out put 5W + 5W

Input terminals

Fix Audio Output 50 0m V( r ms) ( - 4d Bs ) LO W Imped ance (40 0Hz w he n mod ul a ted 10 0%)

AV compulink ⅢⅢⅢⅢ Input 3.5 m m mi ni jac k

Antenna terminal 75Ω(VHF/UHF) Terminal, F-Type Connector

Remote Control Unit RM-C 32 6G(AV-32F703) / R M- C32 6( AV- 32 F71 3) /R M-C32 5G (AV -32F8 03 )

××××H××××

D) 34 - 5/8 ”×27”-5/8”×22-1/4” (877mm×69 9m m×5 65m m)

TV RF Syste m

Color System

Sound System

VL B a nd

VH B and

UHF Band

Low Band

High Band

Mid Band

Super Band

Hy p er Band

Ul tr a B an d

Sub Mid Band

TV/CATV Total Channel 18 0 Cha nn el s

Sound IF Carrier

Input 1 (Rear) S-Video

Vide o

Audio (L/MON O, R)

Input 2 (Rear) Video

Component video

Audio (L/MON O, R)

Input 3 (Front) Video

Audio (L/MON O, R)

Input 4 (Rear)

(For AV-32F8 03)

Component video

Audio (L/MON O, R)

CCIR(M)

NTSC

BTS C S ys tem ( M ul ti -Ch an nel S ound )

(02～06) 54 MHz ～88MHz (07～13) 17 4M H z～21 6M Hz (14～69) 47 0M H z～80 6M Hz

(02～06, A-8) by (02～06&0 1) (07～13) by (07～13) (A～1) b y (14～22) (J～W) by (23～36) (W +1～W+28) b y (37～64) (W +29 ～W +84) b y ( 65 ～1 25) (A8, A4～A1) by (01, 96～99 )

45 .75 MHz

41.25 MHz ( 4 .5MH z)

31 .4 kV±1.3kV (at zero beam current)

2”×4 -3/ 4” ( 5×12 cm ) Oval t ype×2

Y : 1V(p -p ) P ositive ( N eg ativ e s ync p rovided, w h en term i nat ed with 75 Ω)

C : 0 .28 6V( 1V (p- p ), 75 Ω

50 0m V( r ms) ( - 4d Bs ), High Im pe dance

1V p- p, 75 Ω

Y : 1 V( p- p) P ositive ( N eg ati ve sync provide d, when ter m i na ted with 7 5Ω)

PB, PR : 0.7V(p-p), 75Ω

50 0m V( r ms) ( - 4d Bs ), High Im pe dance

1V (p -p ), 75 Ω

50 0m V( r ms) ( - 4dB s ), High Im pe dance

Y : 1 V( p- p) P ositive ( N eg ati ve sync provide d, when ter m i na ted with 7 5Ω)

PB, PR : 0.7V(p-p), 75Ω

50 0m V( r ms) ( - 4d Bs ), High Im pe dance

(AA/R 6 /UM- 3 bat ter y×2)

p-p

) (Burst si g nal , wh en te rmina ted with 7 5 Ω)

(54MHz～ 80 4MH z)

De sign & speci f icat ions ar e su bject to chang e wi th ou t notice.

No.52004

SAFETY PRECAUTIONS

V-32F70 V-32F71 V-32F80

1. The d esi gn of t hi s p ro du ct c ont ai ns spec i al h ar dw ar e, man y ci rcu its and co mp on ent s s pecial l y for saf ety purp oses. For continued protection, no changes should be made to the origi na l des ig n unl ess a uthor ized in wr iti ng by t he m an ufac tu re r.

Replacem en t parts must be ident ic al t o thos e us ed in th e origi na l c ircui t s . S ervic e sho ul d be perf or me d b y qu al i fi ed p ers onnel o nl y.

2. Alte r ati on s of th e des i g n o r circu i tr y of the p rodu cts s hou ld n ot b e m ad e. A ny desi gn al te rations or ad di tio ns will vo id th e

manufacturer's warranty and will further relieve the manu fact ur er of resp ons ib ilit y for pers ona l in ju r y or p rope rt y d am age r esu lt in g t heref rom .

3. M an y electr i cal an d m ech an ic al pa rt s in th e produ cts h ave sp ecial saf ety- r el at ed charact eris tic s. These charac teri stics ar e

oft en n ot e vid en t fr om v isu al in spe ction no r can t he prote ction aff or de d by them n ecess ar ily be obtained b y usi ng replac ement c o mp on ents ra ted for h ig her vo ltag e, wa ttag e, etc. Replacem en t pa rt s whic h h av e t hes e sp ecial s afet y ch aracteristi c s a re i d entified in th e par ts l ist of S ervic e m an ual.

Electrical components having such features a re identified by shading on the schematics and by (!!!!) on the parts list

in S erv ice manual . The u se of a subst itute re plac emen t whi ch

does not have the same saf ety characteristics as the reco mm en de d replac em en t pa rt s ho wn in the pa rts l ist of Se rvi ce ma nu al m ay c ause sh ock, f ire, or o ther hazards.

4. Use iso la tio n tr an sf orme r when hot chassis . The chassis and any sub-chassis contained in s ome products are c on nect ed to one si de of th e AC p ower l i ne . An i sol a tion tr ansf or m er of ad equ ate c ap ac ity sh ou ld be ins er t ed bet we en th e p r odu ct and t he AC p ow er su pp ly p oint while p erfor ming

an y s er vic e on so me pr o duc ts when th e HOT c h assis is exp ose d.

5. Don't shor t between the LIVE side ground and I SOLATED

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

So m e m od el 's p ower c irc uit is par t ly di f feren t in t he GND. Th e diff er enc e of t he GND is sh ow n by th e LI VE : (") side GND, th e ISO LATED( N EUTRA L) : (#) s ide GN D an d EAR TH : ( $) si de GND . Don 't sho rt be tween t he LIVE s id e GN D a nd ISO LATE D(N EUTRAL) side GND or EARTH si de GND and never measure with a measuring apparatus (oscilloscope etc.)

th e LI VE side GND a nd ISO LATED(N EU TRA L) si d e G ND or EARTH side GND at the s ame time. If above note will not be kept, a fuse or any parts will be broken.

6. If any repa ir h as b een m ade to th e chass is, it is re c ommend ed th at t he B1 se ttin g sh ou ld b e chec ked or adjuste d (S ee

ADJUST M ENT OF B 1 POW E R SUPPL Y).

7. The hig h volt ag e app lied t o the pictu re tube mu st co nform wi th that specified in Service manual. Excessive high voltage can cau s e an incr ea se i n X-Ra y emi ssi on , a rci n g and p ossi bl e com po ne nt d am ag e, th er ef ore op er ati o n un der excess i ve hi gh

vol ta ge c ond it i ons sh ou ld be k e pt to a m in imum, or sh ould be preve nt ed. I f s evere arc in g occu rs, r em ov e th e AC p ower immediately and determine the cause by visual inspection (inc or r ect installa tion , crac ked o r melte d hi gh voltag e h ar nes s, p oor s olde rin g, etc. ). T o mainta in the pr op er minim um le vel of

soft X-Ra y emission, components in the high voltage circuitry incl ud i ng the picture tu be mus t be the ex a ct r ep l acemen ts or alte rn at ives appr o ved b y th e manuf actu r er of th e co mp l ete prod uct.

8. Do n ot c hec k hi gh vol ta ge by d r aw in g a n ar c . U s e a hi gh vol ta ge m ete r or a hi gh volt age pro be wi th a VT VM . Di sc h ar ge

th e p ictu r e tu be bef or e a tte mp ting meter co nne cti on , b y con nec ting a c lip lead t o th e gr ou nd fr am e a nd con n ecti ng t he oth er e nd of t he lead th roug h a 10kΩ 2W resist or to t he anode

bu tto n.

9. W hen s e rvi c e i s required, ob s er ve th e o rig in al l ea d dr es s. Extra p r ecau tion sh ould be given t o assu re cor re ct lea d dr es s in the h i gh v olta ge c ircu it ar ea . W her e a sh ort cir c ui t ha s occu rre d, th ose c omp on en ts th at i nd ic ate ev iden ce of overheating should be replaced. Always use the

manu fact ur er 's replace m ent compon ents .

10 . Isolation Check

(Safety for Electrical Shock Hazard)

Af ter re-a ssem bl ing th e pr od uct , always pe rf or m an iso lation ch ec k on th e expo s ed m etal p ar ts of the c abin et ( ant en na

ter m ina ls, vi de o/a ud i o in pu t and out put t er mi n al s, Con tr ol knobs, metal cabinet, screwheads, earphone jack, control sh afts, etc .) to be sure th e pr o duct is saf e t o op er at e w i th out d ang er of elect rica l shoc k.

(1) Di electric Strength Test

The is olat ion b etwe en the AC pri ma r y cir cu it and al l m eta l parts exp osed t o th e us er, par ticu larly an y expo sed m etal p art h aving a re tur n pat h to the ch assi s sh ou ld w i ths t and a volta ge of 11 00V AC ( r .m.s.) f or a p eriod of one s ec ond.

(. . . . Withstand a voltage of 11 00V AC (r.m. s.) to an applian ce

rate d up to 120V , a nd 3 000V AC ( r .m. s.) t o an appl i anc e ra ted 200V or more, for a period of one second.) Thi s meth od of tes t re qu ires a t est eq uip me nt n ot g en er al l y fou nd in t he servi ce t ra de.

(2) Leakage Current Check

Plug t he A C line c ord direct ly int o th e AC ou tl et ( do not u s e a line is olation tra nsf orm er dur i ng t his che ck.) . Using a " L eakage

Curr ent Tes t er", mea sure t he lea kag e cur r en t fr om each exp os e d m etal part of th e ca bine t, partic ul ar l y an y expo s ed metal part having a retur n path to the ch assis, to a known good ea rt h gr o und (water p ipe, etc.). A ny lea kag e cur r en t must not

exce ed 0. 5mA AC ( r.m. s.). Howev e r, i n t ropical a r ea, thi s m us t not e xc eed 0 .2m A AC (r.m.s.).

"""" Altern at e Che ck M ethod

Plug t he A C line c ord direct ly int o th e AC ou tl et ( do not u s e a line isolation transformer during this check.). Use an AC

vol tm et er h aving 100 0 o hm s per vol t or more sen s iti vit y in the follo win g manner. C on nec t a 150 0Ω 1 0W r esistor pa ralle l ed by a 0.15μ F AC-typ e cap ac i tor b etween an exp ose d meta l p art and a kno wn g o od ear th gr ou nd (wate r pipe, et c.).

Measu r e th e A C voltag e ac r oss th e resi st or w it h t he AC voltmeter. Move the res istor connection to each exposed metal part, particularly any exposed metal part having a return path to

th e ch assis , an d m ea s ur e t he A C vol ta ge acr os s th e r esis to r. Now, reve rs e th e pl u g in t he A C out let a nd r ep e at e ach measu r em en t. An y volta ge me as u re d m ust not exce ed 0.7 5V AC (r.m. s.) . This corresp on ds t o 0 .5mA AC (r.m. s.) . Howev e r, in tropic al ar ea, this m ust n ot exc ee d 0 .3V AC (r.m.s.). T his corr esponds to 0.2m A AC ( r.m.s.).

AC VOLT METER (HAVING 1000 Ω/V,

GOOD EARTH

GR OUND

11 . High voltage hold down circuit check.

Af ter rep air of the hi gh volt ag e h old down ci r cuit, th is circu i t sh all be c hecked to op er ate corr ectly. See ite m "Ho w to check the high voltage hold down cir cuit".

This mark shows a fast operating fuse, the

letters indicated below show the r ati ng.

0.15μF AC-T YPE

1500Ω 10W

OR MOR E SENSIT IVITY)

PLACE THIS PROBE ON E A C H EX PO SE D

ME T AL PA RT

A V

No. 52004

V-32F703

V-32F713 V-32F803

FEATURES

• New c hassis de s ign en abl es us e of a si ngl e b oard w ith simplifi ed

circuit ry.

• Users c an make fun to c onn ect the DVD p layer wit h th e component

vid eo signal i npu t termi na l.

• Provid ed with mini atu re tuner ( TV/ CATV).

•

Multif unct ional rem ote con tro l p erm its pic tu re a djustment.

• Adopti on of the CHANN EL GUARD fun ction prevents t he sp eci fi c

chan nels from being selected, unl ess th e “ID nu mbe r” is key in .

• I

C bus control utilizes single chip ICs.

•

Adoption of the VIDEO STATUS / THEA TER PRO. functi on.

•

Ad opti on of the ON /OF F TIM ER and SLE EP TI MER fu nction.

• Bu ilt-in V-CHIP system.

•

Clos ed- caption b roadcas ts can be view ed.

•

Built-in MTS system, BB E / HYPER- SURROUND system.

• S-VIDEO in put termi nal for tak i ng best advantag e of S uper VH S.

•

Digit al Comb fi lter Imp roved picture quality .

• Bu ilt-in EZ SURF system.(AV-32F803)

By pus h in g the EZ SU R F key , the coun terprogram info rmation can

be displ ayed in t he te xt form that is obtain ed f rom t he three program

informatio n: t he CALL LE T TER (broadcast in g s tation ID), netw or k names an d progr am nam es i n the XDS d ata. W hen the P IP f un ctio n

is tur ned on, the coun terpr ogr ams will be d isp layed on the PI P one by

one whil e th e text on t he main scr een i s displ ayed si m ult aneou s ly.

HOW TO IDENTIFY MODELS

How t o re cognize f ro m the ap pea ran ce of th e model concerne d is wri tten be low. Plea se di st in guish from sev eral co ntents cu rr ently printe d on the rating label.

[RATING LABEL]

Indicated Basic Model Name

AV -32 F703

AV -32 F713

AV -32 F803

Indic ated “Y ” letter as model att ribu te nam e.

No.52004

MAIN DIFFERENCE LIST

V-32F703 V-32F713 V-32F803

!!!!

Parts Name

MAIN PW B SGJ -1010A -M2 SGJ -1012A -M2 SGJ -1011A -M2

PIP PWB SGJ -4 001A-M 2 ××

AV SE L PWB SGJ -5001A -M2 SGJ -5002A -M2

3D Y/C S EP M OD ULE PWB SGJ 0Y00 1A- M2 ××

FR ON T CABI. ASSY LC11048 -0 03B- A (Si l ver)

JVC M AR K CM48006 -008- C

! DOOR LC20 628-0 01C- A

KNOB (P OWER) LC31237 -0 01A- A

OPERATION SHEE T LC31238-004A-A

CONTR OL K NOB LC20217 -0 04B- A

TERM INA L BOARD LC20899 -0 05A- A LC20 899 -0 04A- A

REMO CO N UNIT RM-C 325 G-1A RM-C 326 G-1A RM-C 326 -1 A

Comb filter 3D Y/C separate comb filter 3 line digital comb filter

Pictur e in Pic tur e 2 Tun er PIP NO

Model name

AV-32F803

AV-32F703

AV-32F713

←

← ← ←

← ←

←

LC11048 -0 04A- A (Bl ack)

CM48006 -009-C

LC20628 -0 02A- A

LC31237 -0 02A- A

LC31238 -0 05A- A

LC20217 -0 06A- A

←

← ←

EZ Su rf YES NO

I nput Terminal Input1 ～Input4 Inp ut1～Input3

← ←

No.52004

V-32F703

V-32F713 V-32F803

FUNCTIONS

FRONT PANEL CONTROL

INPUT3 VIDEO terminal

VOLUME -/+ buttons

INPUT3 AUDIO L/MONO terminal

INPUT3 AUDIO R terminal

MENU button (▼)

CHANNEL -/+ buttons

OPERATE / buttons (use MENU screen)

REAR TERMINAL

[[[[ AV-32F703

4 5

, AV-32F713/Y ] [[[[ AV-32F803

SENSOR, REMOTE CONTROL

ON TIMER LED

POWER button

]

5 6

[[[[ AV-32F703/Y, AV-32F713/Y ]

1INPUT 1 (S-VIDEO, V, L/MONO, R) terminals

INPUT 2 (V, L/MONO, R) terminals

/ COMPONENT VIDEO(Y, P

AUDIO OUT(L, R) terminals

AV COMPULINK Ⅲ

VHF / UHF terminal

, PR) terminals

No.52004

[[[[ AV-32F803/Y ]

1INPUT 1 (S-VIDEO, V, L/MONO, R) terminals

INPUT 2 (V, L / MONO, R) terminals

/ COMPONENT VIDEO(Y, P

INPUT 4 (L, R) terminals

/ COMPONENT VIDEO(Y, P

AUDIO OUT(L, R) terminals

AV COMPULINK Ⅲ

VHF / UHF terminal

, PR) terminals

AV-32F703 AV-32F713 AV-32F803

REMOTE CONTROL UNIT

RM-C326G : AV-32F703/Y RM-C326 : AV-32F713/Y

1 2 3 4

1TV / CATV switch 2VCR / DVD switch 316 : 9 MODE Key 4POWER Key 5INPUT 6DISPLAY key 7SLEEP TIMER Key 8HYPER SUR. Key 9VIDEO STATUS Key ATHEATER PRO key BBBE key

CMUTING Key

DFUNCTION Key ( CH -/+ / VOL -/+ )

EMENU Key FNUMBERS Key G100+ Key HRETURN+ Key ILIGHT Key JV-CHIP Key KEXIT Key LVCR / DVD Keys

Key

The FUNCTION keys operate the CHANNEL and VOLUME normally. These keys also operate the MENU system.

TV VIDEO1 VIDEO2 VIDEO3

(

0 15 30 ……165 180

)

[RM-C325G : AV-32F803/Y]

1 2 3 4

1TV / CATV switch 2VCR / DVD switch 316 : 9 MODE Key 4POWER Key

Key

5INPUT 6DISPLAY key

7SLEEP TIMER Key 8HYPER SUR. Key 9VIDEO STATUS Key

ATHEATER PRO key BBBE key CMUTING Key

DFUNCTION Key ( CH -/+ / VOL -/+ )

EMENU Key FNUMBERS Key G100+ Key HRETURN+ Key ILIGHT Key JV-CHIP Key KEXIT / PIP OFF Key LVCR / DVD Keys MPIP Key NEZ SURF Key (Back Program Information can be displayed.)

The FUNCTION keys operate the CHANNEL and VOLUME normally. These keys also operate the MENU system.

TV VIDEO1 VIDEO2 VIDEO3 VIDEO4

(

0 15 30 ……165 180

(

)

No.52004

V-32F703

V-32F713 V-32F803

SPECIFIC SERVICE INSTRUCTIONS

DISASSEMBLY PROCEDURE

REMOVING THE REAR COVER

1. D isc onnect t he po w er plu g f ro m A C ou tlet.

2. As s hown i n th e Fig .1, rem o ve th e 12 screws marked

3. W i thdr a w t he r ear c over b ackw ar d.

!!!!

CHECKIN G THE CHASSIS

To check the PW Board fro m back side.

1. Pu ll out the ch assis (re fer t o REM OVI NG THE CHA SSIS) .

2. Erect th e c has sis ver ti ca lly so th at y ou can ea sil y check th e bac k

si de of the PW Boar d.

REMOVING THE TERMINAL BOARD

" After removing the rear cover.

1. As s hown i n Fig.1 , r emo ve t he scre ws ma rked

2. Withdraw the terminal board toward you.

""""

REMOVING THE CHASSIS

" After removing the rear cover and terminal board.

1. Sl i ght ly r ai se t he both si d es of c h assi s b y hand an d r em o ve th e

claws u nder th e both sid e of th e ch assis from th e front cabi net.

2. W i thdr a w t he c hass is backw a rd .

(If n ecess ary , r em ove t he wire clamp, c onnec t ors etc.)

REMOVING THE SPEAKER

" After removing the rear cover.

1. A s shown i n Fig. 1 , re mo v i ng th e 2 scr ews m ar k ed

remove the sp eaker with the speaker holder

2. Then r e mo ve the 2 s cr ews m ar ked

fr om sp eake r ho ld er .

3. Follow th e s ame st eps wh en r em oving th e oth er ha nd sp eak er.

NOTE : When removing the 2 screws mark ed

remove t he lower si de s cr ew f irs t, and th en remove th e up per one .

to detac h th e s peaker

$%$%

####

####,

of th e s p eak e r ,

then

[CAUT ION]

When e r ec ti ng th e ch assis, be car ef ul so tha t there will b e no

contacting with other PW Board.

Be for e tu rn ing o n p ower , make s ur e th at t he w i r e connec tor is

prop er ly c on nec ted .

When conducting a check with power supplied, be sure to

confirm that the CRT EARTH WIRE (BRAIDED ASS’Y) is

connected to the CRT SOCKET PW board.

WIRE CLAMPIN G AND CABLE TYING

1. Be sure t o clamp th e wire.

2. Never remove the c able tie use d f or tying th e wi res togethe r.

Should it b e inadverte ntly removed, be sure to tie the wir es with a new cable tie.

REMOVING THE LED & POWER SW PWB

" After removing the rear cover and terminal board.

1. R em ove t h e 2 screws ma rked

2. Withdra w t he LE D & P OW ER SW PW B t oward yo u . * If nec essary, remo ve th e wire clamp, connecto r etc.

as s hown in Fig. 1.

&&&&

REMOVING THE FRONT CONTROL PWB

After removing the rear cover & terminal board.

1. R em ove t h e 2 screws ma rked

2. Withdraw the FRONT CONTROL PWB toward you. * If nec essary, remo ve th e wire clamp, connecto r etc.

as s hown in Fig. 1.

''''

No.52004

FRONT CABINET

V-32F70 V-32F71 V-32F80

This illustration describes about the AV-32F803/Y.

When di sas semblin g t he AV -32F 7 03/Y an d AV 32 F71 3/Y, you ca n us e th is illus tr atio n as same ste ps

as AV-32 F80 3/Y.

LED & POWER SW PWB

3D Y/C SE P MODULE PW B

AV-32F803

CHASSIS BASE

CRT SOCKET

PWB

SP EAKER

FRONT CONTROL

PWB

PIP PW B

AV-32F803

DAF PWB

MAIN PWB

CLAW

AV SE L PWB

POWER CORD

TERMINAL

BOARD

(××××6) AV-32F803

(×××× 4) AV-32F703

AV-32F713

REAR COVER

Fig .1

No.52004

V-32F703

)

/C( S )

)

▼/

V-32F713 V-32F803

MEMORY IC REPLACEMENT

1. Memory IC

This TV uses memory IC. Thi s memory IC s t ores dat a for prop er o pera ti on of the vide o and deflecti o n cir cuits.

When r ep la cing t he m em or y IC , be sure to use an IC c o nta ini ng th is (initia l value ) d ata.

2. Memory IC replacement procedure

(1) Power off

Switch off the p ower and discon nec t t he p ower plug fr om th e AC ou tl et.

(2) Replace the memory IC

Be sure t o use a memory I C wri tte n with the initi al settin g data.

(3) Power on

Con nect the power plug to the AC o utle t and switc h o n the power.

SE RV I CE MENU

SERVICE MENU

1.V

3.S OUND(A) 4.OT HERS(F)

5.PIP(PIP) 6.3L Y/C(LYC)

7. LO W LIG HT 8. HI GH LI GH T

9.RF AF C 10.V CO

C BUS 12.SYSTEM(SYS)

11.I

2.DE F(D

AV-32F803

6.3D Y/C(DYC)

(4) Co nfir m the syst em const ant value

Norma l l y, do not a djust the 12.S YSTEM ( SYS ).

W hen ad just, be sure t o i n put the si gn al.

How to enter the SERVICE MENU.

1) Press th e SLE EP T IM E R key of th e re mo te c ontr o l uni t a nd set

the SLE EP TIME R for 「0 min」.

2) Be for e d is app ea r t he d ispl ay of SLE EP TIMER settings ,

si mu lt an eously pr ess the DISPLA Y key and V I DE O S TAT US key of th e rem ot e co ntr ol u nit.

3) The SERVICE MENU screen will be displayed as shown Fig.1.

How to enter the 12. SYSTEM(SYS).

4) While the SERVICE MENU is dis played, select the

12.SYSTEM(SYS) item wit h FUNCTION (▼/▲) keys, and the

FUNCTION ( / ) keys is press ed, the screen will be displayed

as s hown in F ig.2 .

5) R efe r to th e SYSTEM ( SY ST EM CONSTA NT) TA BLE 1 and

ch ec k th e s ett ing i tems. If the val ue is di ff er ent , sel ect the set ting

item with the FUNCTION (▼/▲) keys an d adjust th e sett in g wit h

th e F UNCT ION ( / ) key s. ( T he let ters of t he se lecte d it em ar e displayed in yellow. )

6) W hen ad jus tm en t h as c omp l ete d, t he val u es sto r e i nt o m em or y IC a uto mati call y

7) Press the EXIT key to return the SERVICE MENU screen.

8) The n pr es s th e E XIT k ey ag ain to retur n th e n or m al sc r een .

(5) Receive the channel setting

Refer to the OPERATING INSTRUCTIONS (USER'S GUIDE) and set the rece ive c h ann els ( Cha nn el s Prese t) as desc ribe d.

(6) User se tt in gs

Check th e us er sett in g it ems acc ordi ng to TABL E 2 . Where thes e do no t agr ee , refer to th e O PE RA TIN G

INSTRUCTIONS (USER'S GUIDE) a nd set the ite ms as d escrib ed .

(7) SERVICE MENU setting

Verify what to set in the SERVICE MENU, and set whatever is

necessary (Fig.1) . Refe r to t he SERVI CE ADJ USTM ENT f or s etting.

SELECT BY OPERATE B Y EXIT BY

EXIT

Fig.1

12 .SY STEM(SYS

SETT ING ITEM NUMBER

SETT ING ITEM

***SYS01 VIDEO IN

SETT ING VALUE

Fig.2

KEY ASSIGNMENT OF REMOTE CONTROL UNIT

(RM-C325G)

POWE R

DISPLA Y

SLEEP

TIMER

NUMBER

VIDEO

TAT

MUTIN G ME MO RY

FUNCTION

▲

FUNCTION

EX IT PIP OFF

NOTE

lth ou gh d esi gn is di ff er ent as t hi s f ig ur e, each

remote controller has the same control function.

No. 52004

+ 22 hidden pages

JVC AV-32F703/Y, AV-32F713/Y, AV-32F803/Y Service Manual

CONTENTS

SPECIFICATIONS

SAFETY PRECAUTIONS

FEATURES

HOW TO IDENTIFY MODELS

MAIN DIFFERENCE LIST

FUNCTIONS

SPECIFIC SERVICE INSTRUCTIONS