JVC HV-29WZ, HV-29WZ/-A, HV-29WZ/AU, HV-29WZ/EE, HV-29WZ/HK Service Manual

Z

SERVICE MANUAL

COLOUR TELEVISION

HV-29WZ

HV-29W

BASIC CHASSIS

MF

[RM-C1030]

HV-29W Z
HV-29W Z
HV-29W Z

HV-29W Z

/-A

/AU

/EE

[RM-C1031]

HV-29W Z

/HK

HV-29WZ
HV-29WZ
HV-29WZ
HV-29WZ

/HK

/-A

/AU

/EE

CONTENTS

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

SAFETY PRECAUT IONS

!

MAIN DIFFERENCE LIST

! FEATU RES･･････････････････････････
! FUNCTIONS ･････････････････････････

1

･･････････････････････････ 4

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

････････････････････ 2

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

･･････････････

･･････････････

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

･･････････････

････････････････････････････

･････････････････････････ 6

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

COPYRIGHT © 2002 VICTOR COMPANY OF JAPAN, LTD.

! SPECIFIC SERVICE INSTRUCTIONS････

3
4

!

SERVICE ADJUSTMENTS

!

PARTS LIST

★

OPERATING INSTRUCTIONS

★ STANDAR D CIRCUIT DIAGRAM ･･･････

･･･････････････････････

･･･････････････････････

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

････････････

････････････

････････････････････････

････ 8

････････

15
37

･･･････ 2- 1

･･････････････

No.520 19

Sep. 2002

HV-29WZ

SPECIFICATIONS

Item Content

Dimensions ( W××××H××××D ) 81.2cm×58.4cm×51.8cm

Mass 46.0kg

TV RF System B/G, I, D/K, K1, M

Colour System PAL / SECAM / NTSC 3.58 / NTSC 4.43

Stereo System

Teletext System

VL

Receiving

Frequency

Intermediate

Frequency

Colour Sub Carrier

Frequency

Power Input

Power Consumption Max 215W / Avg. 153W

Aerial Input Term

Picture Tube 29”(68cm) measur ed diagonally

High Voltage 31.5kV (At zero beam current )

Audio Power Output 7W + 7W

Speaker

Input

Terminal

Output

Terminal

AV Compulink

Headphone jack

Remote Control Unit

VH

UHF

CATV

VIF 38.0MHz

SIF 32.5MHz(5.5MHz) / 32.0MHz(6.0MHz) / 3.15MHz(6.5MHz) / 33.5MHz (4.5MHz)

PAL 4.43MHz

SECAM 4.40625MHz / 4.25MHz

NTSC 3.58MHz / 4.43MHz

Video 1Vp-p 75Ω

Audio(L/R)

S / Video

Component Cb/Cr

Video

Audio(L/R)

A2 (B/G) / NICAM (B/G, I, D/K)

Fastext (UK system) **** [ **** Without TEXT mode : HV-29WZ
WST(world standard text)

46.25MH z ～ 168.25MHz

175.25MHz ～ 463.25MHz

471.25MHz ～ 863.25MHz

Mid (X～Z+2, S1～S10), Super (S11～S20) & Hyper (S21～S41)

AC 110V～240V , 50/60Hz

75Ωunbalanced, Coaxial

+1.0kV

-1.5kV

6.5cm×13cm Oval type×2

500Mv(rms) (-4dBs), High I mpedance

Y : 1V(p-p) Positive (Negative sync provided) 75Ω

C : 0.286V(p-p) (burst signal), 75Ω

Y : 1V(p-p), 75Ω

Cb : B-Y 0.7V(p- p), 75Ω / Cr : R-Y 0.7V(p-p), 75Ω

1V(p-p) 75Ω

500mV(r ms) (-4dBs), Low Impedance

Mono mini jack (φ3.5mm )

Stereo mini jack (φ3.5mm )

RM-C1030 (AA/R06 / UM-3 , Dry cell battery×2)

/-A

: HV-29WZ / HV-29WZ

RM-C1031 (AA/R06 / UM-3 , Dry cell battery×2) : HV-29WZ

/ HV-29WZ

/AU

& HV-29W Z

/HK ]

/EE

/HK

Design & specifications are subject to change without notice

2

No.52019

.

Z

SAFETY PRECAUTIONS

HV- 29W

1. The design of th is prod uct con ta in s sp eci al har d ware , 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. 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 the desi g n or circui tr y of t he prod ucts s h oul d 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 e l ectr ical an d mech ani c a l p ar ts i n th e pr od ucts 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 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. 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 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 with
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 not c hec k hi gh volt ag e by dr aw i ng an arc. Use a hi gh volt age
meter or a hig h v oltag e pr ob e wit h a V TVM . Discha rg e th e
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 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 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 par a lle le d 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

No.52019

3

HV- 29WZ

MAIN DIFFERENCE LIST

!!!!

Part n ame

MICOM PWB SMF-0M706A SMF-0M707A SMF-0M708A SMF-0M706A SMF-0M709A

! PICTURE TUBE A68QCU25 7XV 9K A68QCU25 7XV 9S A68QCU25 7XV 9K

!

POWER CORD

! REAR COVER GG1 0192-0 05 B-H GG1 0192-0 06B -H GG1 0192 -005B -H GG1 01 92-0 06B- H GG1 0192-0 05A -H

!

INST BOOK LCT1200-001A-H LCT1201-001A-H LCT1200-001A-H LCT1202-001A-H

REMOTE CONTROL UNI T RM-C 1030- 1H RM-C 1031- 2H RM- C 10 30-1 H

! DIGEST MANUAL ××LCT1203-001A-H ××

! CONVER SI ON PLUG ××QAM 0 055- 001 ××

WARRANTY CARD ×××BT-56001-2 BT-54012-2

S CE NTER LI ST ×××BT-56002-2 ×

STICKER ×××GG4 0016-0 02A -H ×

TELETEXT

Model name

FA STEXT
WST

HV-29WZ HV-29WZ

QM P4 0D0- 20 0J5

or

QM P4 0D0- 20 0J3

○×○ ○○

QMPN05 0-20 0-E2

/HK

HV-29WZ

QMPR01 0-20 0-E2

QMPR01 0-20 0-K2

/-A

or

HV-29WZ

QM P2 980- 185J 5 QM P4 0D0- 20 0J5

/AU

HV-29WZ

/EE

FEATURES

"

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

control.

"

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

and WST (world standard text system).

**** Except HV-29WZ

"

Pu re F LA T CRT r epr od uce f in e t extu red.

" Digi Pur e pr o : Au to dig i pur e with m ot io n pi ctur e c ompe nsat i on.
"

Be caus e th is TV un i t corr esp on ds t o m ultipl e x br oa dca s t, u ser s

can enjoy music programs and sporting events with live realism.

In ad dition , BI LIN GU AL pro gr am s can be h ear d in th ei r or i g in al
language.

/HK

.

"

Built- in ECO ( ECON OMY, ECOLOG Y) 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 th e ey e.

4

No. 52019

Z

SYSTEM BLOCK DIAGRAM

CO

OCESSO

MICON PW B

HV- 29W

IC 00 4

MEMORY

MAIN PWB

IC 66 1

3D SU RROUND

/ VOL / TONE

IC 10 1

MULTI SOUND

PR

IC 00 1

MICRO COMPUTER

SDA 0
SCL 0

SDA 2
SCL 2

SDA 1
SCL 1

IC 30 1

DEF & RGB

PROCESSOR

TU0 01

R

TUNER

IC 10 1

SW

100Hz P WBAV SW PWB

IC 10 1

VIDEO PROCESS

&

CODEC

IC 20 1

SAMPLE RATE

NVERTER

IC 30 1

ENHANCE

No. 52019

5

HV- 29WZ

FUNCTIONS

■■■■ Front Terminal & Control

1 HEADPHONE jack 7 Rem ote Con t ro l SEN SOR
2

VID EO- 4 term i nal (S- VID EO / V I DE O / L/MO NO / R)

3

MENU/O K Button

4

CHANNEL -/+ (MENU UP/DOWN) Button

5

VO LUME -/+ (MENU LEFT/RIGHT) Button

6

TV/VIDEO / EXIT Button

8

ECO SENSOR

9

CINEMA SUR RO UN D L AMP

A

ECO LAMP

B

POW E R L A M P

C

POWER SW Button

■■■■ Re ar Termin al

1

VIDEO-1 (IN PUT) terminal (S, V, L, R)

2

VIDEO-2 (IN PUT) terminal (V, L, R)

3

VI DEO-3 (IN PUT ) terminal (V/Y, Cb, Cr, L, R)

/ COMPONENT

4 OUTPUT (AUDIO/VIDEO) terminal (V, L, R)
5

AV CO MPULI NK ter m i nal

6

AERIAL socket

6

No. 52019

Z

■■■■ Remote Control Unit

RM-C1030 : HV-29WZ, HV-29WZ/-A, HV-29WZ/AU, HV-29WZ/EE

2

5

6

7

9

10

11

12

16

17

1

3

4

8

13

14

15

18

19

20

1

POWER Key

2

MUTI N G Key

3

ZOO M Key

4 CIN EMA SUR ROU ND Key
5

COLOUR SYSTEM Key

6

SOUND SYSTEM Key

7

DISPLAY Key

8 MENU / OK Key
9

FUNC TI ON Key ( ▲/▼ & / Key )

A

STEREO Ⅰ/ⅡKey

: Stereo / : M ono

Ⅰ

: Bilingual (subⅠ)

Ⅱ

: Bilingual (subⅡ)

B TV/VIDEO Key
C PI CTUR E MO DE Key
D

TV/TEXT Key

E

CHANNEL Key

F

-/-- Key

G

RET URN + Key

H

CHANNEL +/- Key

I VOLUME +/- Key
J

CO LO UR K ey

K

TELETEXT Key

HV- 29W

RM-C1031 : HV-29WZ/HK

2

5

6

7

9

10

11

12

16

17

14

15

18

19

1

POWER Key

2

MUTI N G Key

1

3

4

8

3

ZOO M Key

4

CIN EMA SUR ROU ND K ey

5

COLOUR SYSTEM Key

6 SOUND SYSTEM Key
7 DISPLAY Key
8

MENU / OK Key

9

FUNC TI ON Key ( ▲/▼ & / Key )

A

STEREO Ⅰ/ⅡKey
: Stereo / : M ono

Ⅰ

: Bilingual (subⅠ)

Ⅱ : Bilingual (subⅡ)

B

TV/VIDEO Key

C

PI CTUR E MO DE Key

E

CHANNEL Key

F -/-- Key
G

RET URN + Key

H

CHANNEL +/- Key

I

VOLUME +/- Key

J CO LO UR K ey

No. 52019

7

HV- 29WZ

S

SPECIFIC SERVICE INSTRUCTIONS

DISASSEMBLY PROCEDURE

REMOVING THE REAR COVER

1. Unplug t he po we r c ord.

2. Remove the 16 screws marked !!!! as sh own in th e Fig. 1.

3. Withdr a w t he r ear co ver to wa rd you .

REMOVING THE AV TERMINAL BOARD

" After removing the rear cover.

1. Remove the 5 scr ew s m ar ked

2. Withdraw the AV terminal board toward you.

""""

as sh ow n in t he Fig . 1.

REMOVING THE CHASSIS

"

After removing the rear cover.

1. Slight l y r aise th e bo th si de s of th e c hass i s by h and and re mo ve

th e 2 claws under th e b oth s id es of the chas sis from th e fr ont
cab inet .

2. Withdr a w t he chass is backw a rd .
(If necessary, take off the wire clamp, co nnectors etc.)

REMOVING THE SPEAKER

" After removing the rear cover.

1. Remove the 2 scr ew s m ar k ed
sh own i n F ig. 1.

NOTE : When removing the screws marked

remove t he lo w er side sc r ew fi r s t, an d t hen remove th e

up per one .

2. Remove th e claw m ar ked $$$$ pu sh t he SP hold er as s hown i n

Fig. 2.

3. Fol l ow th e s am e st eps wh en rem oving the oth er spe aker.

####

, a nd rem ove th e SP hold er a s

####

of t he SP holde r,

CHECKIN G THE PW BOARD

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

1) Pull out the chassis. (Refe r to RE MOVING THE CHAS SIS ).

2) Erect the chassis vertically so that you c an easily check the
b ack side of the PW B oard.

[CAUTION]

"

When erecting the chassis, be careful s o tha t there will be no

contacting with other PW Board.

"

Be fore tur n ing on po wer, ma ke sur e tha t the wire co nnecto r is

prop er l y con nected .

"

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

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 v e th e cable ti e use d f or tyi ng the wi re s to gethe 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.

8

SP HOLDER

SP HOLDER

SP EAKE R

CLAW

P EAKE R

CLAW

D

SP HOLDER

[SIDE VIEW]

Fig . 2

No.52019

HV- 29W

Z

(×5)

FRONT CABINET

C

SP EAKER

FRONT
C ONT RO L

PWB (R )

C ONT RO L
BASE

CRT SOCKET
PWB

C ONT RO L
BASE

CLAW

FRONT CONTROL
PWB (L)

MAIN PWB

AV SW PW B

See Fig. 2

MICOM PWB

CLAW

BLK PW B

10 0Hz PWB

C

SP EAKER

POWER & DEF.
PWB

CHASSIS

AV
TERMINAL
BOARD

Fig . 1

B

POWER CORD

REAR COVER

A

(×16)

No.52019

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HV- 29WZ

A

REMOVING THE CRT

∗

Replacem en t of th e CRT s ho ul d be p er for m ed b y 2 or mor e

p ers ons.

• After removing the cover, chassis etc.,

1. Pu tting the CR T chan ge tabl e o n sof t c l oth , th e CRT c ha nge ta ble
sh ould al so b e c over e d w i th s uch soft clot h (s ho wn i n Fig. 3) .

2. W hi l e kee pin g th e s urf ace of C RT down , m ount the TV s et on t he
CRT change table balanced will as shown in Fig.4.

3. R em ov e 4 sc rews mark e d by arro ws with a box ty p e scr e w dri ver
as s hown in Fig. 4.

• Si nc e th e c ab i net will dr op whe n scr ews h av e be en remove d, b e

sure t o su pp ort t he cabinet with hands.

4. After 4 screws have been removed, put the cabinet slowly on
cloth (At th is time, be ca refully so as not to damage th e front

sur fac e of th e c abin et) s h ow n i n Fig. 5.

• The C RT sh ould b e ass embled accor di n g to th e o pposi te
sequence of its dismounting steps.

∗

The CRT c han ge table s h ou ld pref erab l y be smaller tha t th e C R T

sur fac e, and its h ei gh t be abo ut 35c m. (F ig.3 )

∗ Ab out CRT S p acer (Fig .4 )

An appr o pria te CRT spa cer shou ld be us ed i n t he co rr es p on ding

CRT in acc ordan c e with the t yp e of t he CRT.
When a CRT i s r ep l ace d, sp ecial att enti o n s ho ul d be p aid to this

matter.

CRT CHANGE TABLE

PPROX.

35 cm

CLOTH

Fig. 3

COATING OF SILICON GREASE FOR ELECTRICAL
INSULATION ON THE CRT ANODE CAP SECTION.

•

Subse qu ent to re pl ace me nt of th e CR T an d HV tr an s for m er o r

repa ir of th e a no de ca p, etc. b y di smou nti n g the m, be su r e to
coa t si l ic on greas e f or elect rica l insul at ion as shown in Fi g.6 .

Wipe a r oun d the anod e butt on wi th clea n and dry cl ot h. (Fi g.6 )
Coat sili con gr ea se on t he section arou nd the an od e b utt on. At

this tim e, take care so th at any silico n greases dose not stick to
the ano de button. ( Fig.7)

★★★★

Sil icon grease product No. KS - 650N

CRT

An od e butt on

Silic on gr eas e

coating

CABINET

Ap prox.
20mm (Do not
coat grease on
this section

An od e butt on
(No sti c king of
silicon grease)

Fig. 4

CRT

CRT
CHANGE TABLE

Fig. 5

Silic on gr eas e
sh ould be coa ted
b y 5mm or m or e

fr om th e outs id e
diame ter of
an od e c ap.

Coat in g posit io n
of sili co n g r ease

An od e cap

Fig. 6 Fig. 7

10

No. 52019

Z

REPLACEMENT OF MEMORY ICs

1. Memory ICs

This TV use memory ICs. In the memory ICs, there are memorized data
for correctly operating the video and deflection circuits. When replacing
memory ICs, be sure to use ICs written with the initial values of data.

HV-29W

2. Procedure for replacing memory ICs

(1) Power off

Switch the power off and unplug the power cord from the wall outlet.

(2) Replace IC s.

Be sure to use memory ICs written with the initial data values.

1. IF 2. V/C

3. AUDIO 4. DEF

5. VSM PRESET 6. STATUS

7. WB PRESET 8. SHIPPING(OFF)

9. BUS FREE

1-9 : SELECT DISP : EXIT

SERVICE MENU

(3) Power on

Plug the power cord into the wall outlet and switch the power on.

Fig.1

(4) Check and set SYSTEM CONSTANT SET:

****

It must not adjust without signal.

1) Press the DISPLAY key and the PICTURE MODE key of the REMOTE CONTROL UNIT simultaneously.

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

3) While the SERVICE MENU is displayed, press the DISPLAY key and PICTURE TUBE key simultaneously, and the S YSTEM
CONSTANT SET screen of Fig. 2 will be displayed.

4) Check the setting values of the SYSTEM CONSTANT SET of Table 1. If the value is different, select the setting item with the
FUNCTION ▲/▼ key, and set the correct value with the FUNCTION / key.

5) Press the MENU(OK) key to memorize the s etting value.

6) Press the IN FORMATION key, and retur n to the normal screen.

SYSTEM CONSTANT SET

1. TEXT **

SERVICE MENU KEY

OK

+ : STORE DISP : EXIT

Fig.2

2. BLUE BACK MUTE

3. E.M.C

4. WHITE BACK

5. COLOUR AUTO

6. PICTURE T ILT

**
**
**
**
**

(5) Setting of receive channels

Set the r eceive channel.
For setting, refer to the OPERATING INSTRUCTIONS.

(6) Setting of SERVICE MENU

Verify the setting items of the SERVICE MENU of Table 2, and
reset where necessary.
For setting, refer to the SERVIC E ADJUSTMENTS.

(7) User settings

Check the user setting values of Table 3, and if setting value is
different , set the correct value.
For setting, refer to the OPERATING INSTRUCTIONS.

SERVICE
MENU /
& SYSTEM
CONSTANT
key

ZOOM
(ASPECT )
key

FUNCTION key
(▲/▼ & / key)

MENU / OK key

MEMORY
(STORE) key

SETTING ITEM
SELECT key
(Numbers key)

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