500mV(rms) (-4dBs), High impedance,
RCA×2 (F ront / Rear)
75Ω (Front / Rear
Video1V(p-p), 75
Ω
Audio500mV(rms) (-4dBs), Low impedance,
/-A
Headphone jack
3.5mm mini jack
[AV-21LT3 / AV-21LT3
Remote Control Unit
: RM-C364G Y
[AV-21LTR3]
: RM-C90
(Batter y size : AA / R06 / UM -3×2)
Design and specifications are subject to change without notice.
2
/AU
No. 52030
/ AV-2105EE]
[AV-21LMG 3 / AV-21LMG3
/-A
]
: RM-C364G Y
[AV-21LMT3]
: RM-C90
(Batter y size : AA / R06 / UM -3×2)
A
3
A
3
A
SAFETY PRECAUTIONS
V-21LMT3/AV-21LTR
V-21LT3/AV-21LMG
V-2105EE
1. The d esign of th is pr od uct c on tains speci al har d wa re , ma ny
circuit s and components spe cially for safety pur poses. For
con tinu ed pr ot ection , n o c han g es sh ou ld b e ma de to the o rig inal
d esi gn un les s a uth or i zed in wri ti n g by th e ma nu fact ur er .
Replacem en t par ts must b e id ent ic al to thos e u s ed i n th e origin al
ci rcu its. S ervi ce sho uld b e p erfor m ed by qu alif ied p ers onnel
on ly.
2. Alte r ati on s of t he desig n or circui tr y of t he pr od ucts s h oul d not be
made. Any design alterations or additions will void the
manu fact ur er 's warrant y and w i ll f urth er r elieve t he ma nufac tu rer
of r esp onsi b ility for perso nal inj ur y or p rop er ty d am ag e r esult in g
th erefr om.
3. Man y elec tr i cal and mech anic a l p ar ts in th e products have
special safety-related characteristics. These characteristics are
oft en no t e vi den t f r om vis ua l i nsp ection n or ca n t he pr o tect io n
aff or de d by them nece ssarily b e ob tain ed b y us ing rep l acem en t
com po ne nts rated for hig he r voltag e, w att ag e, etc. Rep lacem en t
p arts whic h ha v e th ese s p ecial s afet y ch ar ac t erist ics ar e
ide ntified i n the parts li st of S ervice manua l. El ectric al
components having such features are identified by shading
on t he sche mat ic s and by (!!!! ) on the parts list in Service
manual. The us e of a s ub sti tu te rep lacem en t which do es n ot
h ave th e s ame saf ety ch ar act er ist ics as t he r eco mmen de d
replac em ent part sh own in th e p ar ts list of S er v ice m an ual m ay
cause shock, fire, or other hazards.
4. Do n't shor t between the LIVE side ground and ISOLATED
(NEUTRAL) side ground or EARTH side ground when
repairing.
Some model's power circuit is partly different in the GND. The
diff er enc e of th e GND is s ho wn b y th e LIV E : ( ") side GND, the
ISO LATE D(N EUTRAL) : (#) si de GND and EARTH : ( $) side
GND. Do n't s h or t bet we en th e LIV E sid e GN D an d
ISO LATE D(N EUTRAL) side GND or EART H side GND an d
n ever m ea sur e w it h a mea suri ng appa r atus ( osci l losc op e etc.)
th e LI VE sid e GND an d IS OLA T ED (NE UTR AL ) s ide G ND or
EARTH side GND at the s ame time.
If above note will not b e 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 s et ting shou ld be ch ecke d or adju ste d ( Se e
ADJUST M ENT OF B 1 POW E R SUPPL Y).
6. The hi gh volta ge app lie d t o th e pi ctu r e tube mu st con for m wit h
th at s p ec ifi ed i n S er v ice m an ual. E xcessi ve h igh voltag e ca n
cau s e an i ncre ase in X-Ray em i ssi on , ar c i ng an d possib le
component damage, therefore operation under excessive high
voltage conditions should be kept to a minimum, or should be
preve nt ed. If s evere arc in g occurs, remove t he AC power
immed i ate ly and de termine th e ca use by visua l insp ect ion
(inc or r ect install at ion, cr ac ke d or melte d high volt age har n es s,
p oor so ldering, et c .) . To mai nt ain the p rope r minimu m le v el of
sof t X- R ay emis si on, c omp on en ts in th e hi gh voltag e circui tr y
incl ud i ng t he pic t ur e tu be must be t he e xac t r ep lac em e nts or
alte rn at ives approve d by th e ma nuf act urer of the c omplet e
prod uct.
7. D o n ot c hec k high volt age b y drawi ng an ar c. U se a hi gh volt ag e
meter or a hi g h v ol tag e pr ob e wi t h a V TVM . D i sc ha rg e th e
picture tube before attempting meter connection, by connecting
a cl i p lead to the grou nd frame a nd c onn ectin g th e oth er end of
the lead through a 10kΩ 2W resi sto r to the an od e butt on .
8. W hen se r vice is r equ ir e d, obser v e th e or i gi na l lea d dr ess. E xtr a
prec aut ion sh ou ld b e g i ven t o as sure cor r ec t l ea d dress in th e
high vol tag e ci r cuit a r ea. W here a s hor t ci r cuit h as occu rre d,
th ose co mponent s tha t indic a te evi de nc e of ove r hea ting should
b e r e pl aced. A l wa ys use th e ma nuf act ur er 's r ep lac em en t
components.
9. Isol ation Check
(Safety for Electrical Shock Hazard)
Af ter r e- as s embling th e p r odu c t, alw ays per f orm an is ol at io n
ch ec k on the ex po sed me tal p ar ts of t he c abin et ( a nte nn a
ter m ina ls, video /au dio inpu t and ou tput t erminals, C on trol kn obs,
metal cabin et, screwhe ad s, ea r ph one jac k, con tr ol shaf ts , etc.)
to be s u re the p r odu c t i s s af e t o o pe r ate wi th ou t d an ger of
elect rical shoc k.
(1) Di electric Strength Test
The i so l ati on be tween the AC pr im a ry ci rcu it an d all metal p ar ts
exp osed t o th e us er, p arti c ularly an y expos ed met al p art having a
retu rn p ath to t he chass is s ho ul d withs tan d a vol t age of 3 000V
AC (r.m.s.) for a period of one second.
(. . . . W it hs tan d a vo lt ag e of 110 0V A C (r.m. s .) to an ap plianc 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 requires a t est equi pmen t n ot gener ally found
in t he s er vic e trade.
(2) Leakage Current Check
Plug th e AC l in e c ord d irect ly into th e AC ou tlet ( do n ot us e a lin e
isol ati o n transf ormer du ring this ch eck.) . U s in g a " Lea kag e
Curr ent Teste r", me asure th e lea kage cu rr e nt f rom each exp osed
metal p ar t of the c a bi ne t, p art icularly any e xpos ed me tal p art
h avi ng a re turn pa th to t he c h assis , t o a kn ow n go od ea rt h
grou nd (wa ter pi p e, e tc.) . An y l eaka ge curren t m ust n ot e xc eed
0.5mA AC (r.m.s.).
Howev e r, i n tropic al ar ea , th is must no t exc e ed 0.2 mA AC
(r.m.s.).
"""" Altern at e Che ck M ethod
Plug th e AC l in e c ord d irect ly into th e AC ou tlet ( do n ot us e a lin e
isol ati o n transformer during t hi s che c k.). Use an AC v o lt me ter
h avi ng 1 000 oh ms pe r volt or m or e sens it ivity i n th e fo llowing
mann er . C on nec t a 1 50 0Ω 10W res ist or para lle le d b y a 0 .1 5µF
AC-type c apa cit or bet ween an ex po sed met al pa rt a nd a kno wn
g ood e ar th gr o un d ( water pi pe , etc.). M eas ure th e AC volt ag e
acr oss th e res ist or with th e AC v o l tm eter. M ove th e r esistor
con nec tion to e ach exp os e d me tal par t, part i cularly a ny exp osed
metal p ar t hav in g a r etu rn pat h to t he chassis, an d measu re th e
AC vol tag e ac ro s s the r es ist or . Now, re ver s e th e plu g in th e AC
ou tl et and r e pe at eac h m ea suremen t. An y volt ag e me as u re d
must no t e xceed 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 not exceed 0.3V AC ( r.m.s.).
This corresponds to 0.2mA AC (r.m.s.).
AC VOLTMETER
(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.52030
3
A
V-21LMT3/AV-21LTR3
A
A
V-21LT3/AV-21LMG3
V-2105EE
FEATURES
"
N ew ch ass i s d esign en abl es us e of an i nt eracti ve on-scr ee n c ont ro l.
"
W ide r an ge volt age (110V ~2 40V ) AC p ower input. (Exce pt f or AV -2 1LT3
" W ith AUDIO / VI DEO IN PUT & OUTPUT termina l.
"
MU TING button can red uce th e a udio l evel to zer o i nst ant ly.
" F unct i on al remote co ntr ol t o oper ate T V set (f or ch annel se l ect, v olume c ontrol, p ower ON /OF F , etc. ) f rom a d ist anc e.
"
I2C bu s con tr ol ut ilizes single chi p ICs for IF, V /C, DEF. V SM PRES ET, PRESET & SETUP T OUR.
" By m e ans of AU T O PR OGRA M, the TV s tatio ns c an be s elec te d aut omatic a lly a nd the TV cha nn els c an al so b e r ear r an ge d aut omatic al ly.
" T he TELETEXT SYST EM ha s a built-in F L OP s yst em. (Only f or AV - 21LMT3 / A V-21lLTR3)
"
Bu ilt-in E CO MOD E (ECONOMY, ECOLOG Y)
In acco rdanc e with th e br ig ht ness i n a r oo m, th e br ig ht ness and / of con trast of the p i cture can b e a dj ust ed au tom at ic ally to make th e
Main PWBRemote Control UnitFront CabinetPower Cord
SCG-1414-H2
SCG-1405-H2RM-C364GY-1HGG10129-012A-H
SCG-1416-H2GG10129-027A-HQMPG090-165-K2
SCG-1415-H2GG10129-027A-HQMPR340-165-K2
Packing CaseInst BookDigest ManualWarranty Card
GG10044-045A-HLCT1174- 001A-HLCT1175- 001A- H
GG10044-047A-HLCT1188- 001A-H
GG10129-026A-H
QMPR380-165-K2
LCT1189- 001A-H
BT-56001-2
Item
Model Name
AV-21LM T3B/G, I, D/K,M
AV-21LTR 3
AV-21LT3
AV-21LT3
AV-21LM G3
AV-21LM G3
AV-2105EEB/G, I, D/K
/AU
/-A
TV RF System
B/G, I, D/KPAL / SECAM
B/G, I, D/K,M
Co l our S yst em
[RF Mode]
PAL / SECAM
NTSC3.58 / NTSC4.43
PAL / SECAM
NTSC3.58 / NTSC4.43
PAL / SECAM
Interm ediate
Frequency
[SIF C arri er ]
32.5MHz (5.5MHz)
33.5MHz (4.5MHz)
31.5MHz (6.5MHz)
32.0MHz (6.0MHz)
32.5MHz (5.5MHz)
31.5MHz (6.5MHz)
32.0MHz (6.0MHz)
32.5MHz (5.5MHz)
33.5MHz (4.5MHz)
31.5MHz (6.5MHz)
32.0MHz (6.0MHz)
32.5MHz (5.5MHz)
31.5MHz (6.5MHz)
32.0MHz (6.0MHz)
OSD Language
E / R / A / P
E / R
E / C / M / I
E / R / A / P
E / R / U
No. 52030
7
A
V-21LMT3/AV-21LTR3
A
A
V-21LT3/AV-21LMG3
V-2105EE
SPECIFIC SERVICE INSTRUCTIONS
REMOVING THE REAR COVER
1. U np lu g t he power plu g.
$$$$
!!!!
.
and a
2. As sh own in f i gur e, remove t he 7 screws marked
screw marked "
3. W ithdr a w t he rear cover to ward you .
".
""
REMOVING THE MAIN PW BOARD
" After removing the rear cover.
1. Sl i ght l y ra is e the b ot h si de s of the M AIN PW BOAR D b y han d
an d r e mo ve t he PWB stop pe r mar ke d #
bottom.
2. W ithdr a w t he MAIN PW BOARD b ackw ar d.
(If necess ar y, ta k e off the wire c lamp, c onn ect or s etc. )
# f ro m t he c abine t
##
REMOVING THE SPEAKER
" After removing the rear cover.
1. As sh own in fi gu r e, remove the 2 scr ews marked
2. F ol low th e s ame s t eps when r em oving the oth er ha nd speak er.
CHECKIN G THE MAIN PW BOARD
1. T o ch eck the ba ck side of the PW B oar d.
1) Pu ll out the MA IN PW Bo ard. ( Ref er to RE MO VING THE MAIN
PW B oar d)
2) Er ect th e PW Boar d vert ic ally so th at you can easi l y c h eck th e
b ack side of th e PW Boar d.
[CAUTION]
"
W hen ere cti ng th e PW Boar d, be c ar ef ul s o that there w ill b e n o
con tact in g wi th other PW Board.
"
Before turning on power, make sure that the CRT earth wire and
oth er co nne cto r ar e p r ope rly c onn ect ed.
WIRE CLAMPIN G AND CABLE T YING
1. Be sure t o cl amp th e wire.
2. N ever remo ve th e c able tie used f or ty i ng th e wi re s to ge ther.
Sh oul d i t be inad verte ntly r em ove d, be su re to ti e th e wires w it h a
new cable tie.
8
No. 52030
A
3
A
3
A
FRONT CABI.
SP EAKER
CRT SOCKET
PWB
MAIN PWB
V-21LMT3/AV-21LTR
V-21LT3/AV-21LMG
V-2105EE
D
××××
(
2)
SP EAKER
POWER
CORD
REAR
COVE R
(×××× 2)
D
PWB STOP PER
C
××××
(
1)
B
A
(×××× 7)
No. 52030
9
A
V-21LMT3/AV-21LTR3
A
A
S
U
/C
NUMBERS
U
U
V-21LT3/AV-21LMG3
V-2105EE
REPLACEMENT OF MEMORY ICs
1. MEMORY ICs
Thi s mod el u ses me mo r y I Cs. This me mo r y IC da ta are f or pr o per oper a tion of th e vide o and deflec t io n cir cuits.
When r ep la cing memory ICs , b e su r e to use ICs w r it ten w i th t he ini tial v a lu es of dat a.
2. PROCEDURE FOR REPLACIN G MEMORY ICs
(1) Power off
Switch the p ower of f and di sc o nn ect t he pow e r plu g f rom t he w al l out let.
(2) Replace ICs
Be sure to use memo ry ICs written with the init ial data values.
(3) Power on
Connect th e pow er plu g i nt o the wal l ou tl et and s w itch t he po we r on .
(4) C heck and s et SY STEM CO NSTA NT SET
・・・・ It must not adjust w ithout adjustment signals.
1) Press th e DI SPLAY key and the PICTURE MODE key of the REMOTE
CONTROL UNIT simultaneously.
2) The SERVICE MENU screen of Fig. 1 will be displayed.
3) W hi l e th e SE RV IC E M EN U is di splay ed , again press the DI SPLAY ke y and
PICTUREMODE ke y si m ulta neo usl y, an d t he S YSTEM CONSTA NT SE T
screen of Fig. 2 w ill b e di splayed.
4) Check the s ettin g val ue s of the S YSTE M CO N STANT SET of T able 1 If th e
val u e is diffe re nt, select the sett ing item with the MENU ▼/▲key, and set
th e co rrect valu e with t he MENU - / + k ey.
5) Press the DISPLA Y key twi c e, and r etu rn t o the n or m al sc r ee n.
(5) Receive channel of setting
Refe r to th e OPE RATI NG I NST RUCTIONS an d set th e r ece ive cha nn el s
(chan nels prese t) as descr i be d
(6) User Setting
Check t he us er s etti n g v alu e of T ab l e 2, a nd if setti ng v al ue is di f fer en t, set
th e co rrect valu e.
For setting , refer to the OPE RATI NG INSTRUCTIO NS.
(7) Setting of SERVICE MENU
Ve rif y the s et ting it ems of th e SE RVIC E M ENU, and reset w he r e n ecessa r y.
For setting , refer to the SERVICE ADJUSTMENTS.
NOTE
Alth ou gh th e k ey p osi tion of t he RM-C90 re mote control unit is diff erent fr o m
th at of t he RM-C36 4GY remot e con trol unit, th e function s of bo th units are the
sam e So pl e as e use th e attac hed d iagram for t he RM-C90 remote control
uni t fo r the R M-C36 4GY.
By t he way, MENU -/ + Key fu nction s in t he sam e ma nn er as for / key.
1.IF 2.V
3.DEF 4.VSM PRESET
5.PRESET
6.SETUP TOUR OFF
1-6 SELECT DISP : EXI T
******
****** *****
************
SYSTEM CONSTANT SE T 1
: SELECT
- / + : OPER ATEDISP : EXIT
SYSTEM CONSTANT SE T 2
ERVICE MEN
***** **
* *.****
* * * *
****
********
** ***
** ***** ***
**********
*** ** **
*** ** ** ** ***
*** ** ***** ** **
Fig.1
SY STEM C ON STA NT- ⅠⅠⅠⅠ
COL O UR:
BILIN GUAL: N O
NE R: M
T
ECO SENSOR: YES
LANG U AG E:
/
***
***
SY STEM C ON STA NT- ⅡⅡⅡⅡ
B/B SO UND:
LOCK: 180
COL OUR AU TO :
QSS: MINT
ALC: NO
TEXT R ATE: 2 0
: SEL - / + : OPE DISP : EXIT/
***
***
SY STEM C ON STA NT-
ⅢⅢⅢⅢ
10
KEY ASSIGNMENT OF REMOTE CONTROL UNIT
DI SPL A Y k ey
MENU
/ key
PICTURE
MO DE k e y
MENU
▼/▲
key
(RM-C90)
key
No. 52030
SYSTEM CONSTANT SE T 3
AMP TUNER: NO
VNR: YES
TEXT TABLE :
VOLUM PWM: POS
: SEL - / + : OPE DISP : E XIT
/
Fig.2
***
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