500mV(rms) (-4dBs), High impe dance ,
RCA×2 (Front / Rear)
Ω
3.5mm min i jack
RM-C364GY
(Battery size : AA / R06 / UM-3×2)
Design and specificat ions ar e s ubjec t to change without notice.
2
No. 51893
A
A
SAFETY PRECAUTIONS
V-21ETG2
V-2124EE
1. The design of this product contains special hardware, many
circuits and components specially for safety purposes. For
continued protection, no changes should be made to the original
design unless authorized in writing by the manufacturer.
Replacement parts must be identical to those used in the original
circuits. Service should be performed by qualified personnel
only.
2. Alterations of the design or circuitry of the products should not be
made. Any design alterations or additions will void the
manuf act urer's warr an t y and wil l fur t h er reli ev e t h e manufacturer
of responsi bility f or person al injury or pr operty dam age res ulting
therefrom.
3. Many electrical and mechanical parts in the products have
special s afety-relat ed charact eristics. T hese char acteristics are
often not evident f rom visual i nspection nor can t he protect ion
afford ed by them n ecess arily be obt ained by using rep lacem ent
compon ents rated f or higher voltag e, watt ag e, etc. R epl acem ent
parts which have these special safety characteristics are
identified in the parts list of Service manual.
compon ents hav in g su ch feat ures are id entif ied by s hadin g
on the sche matics and by (
The us e of a subst itute replacement w hich does not
manual.
have the same safety characteristics as the recommended
replac ement part shown i n the p arts list of S ervic e manu al may
cause shock, fire, or other hazards.
) on the parts list in Service
!!!!
Electrical
4.
Don't short b etween the LIV E side groun d and ISOLATED
(NEUTRAL) side ground or EARTH side ground when
repairing.
Some model's power circuit is partly different in the GND. The
difference of the GN D is sh ow n b y the LIVE : (") side GND, the
ISOLATED(NEUTRAL ) : (#) side GND and EARTH : ($) side
GND. Don't short between the LIVE side GND and
ISOLATED(NEUTRAL) side GND or EARTH side GND and
never meas ure with a measuri ng apparatus (osc illoscope etc .)
the LIVE side GND and ISOLATED(NEUTRAL) side GND or
EARTH side GND at the same time.
If above not e wi ll n ot be kept, a fuse or any parts will be broken.
5. If any repair has been made to the chassis, it is recommended
that the B1 setting should be checked or adjusted (See
ADJUSTMENT OF B1 POWER SUPPLY).
6. The hig h voltage app lied t o the picture t ube must c onform wit h
that specified in Service manual. Excessive high voltage can
cause an increase in X-Ray emission, arcing and possible
component damage, therefore operation under excessive high
voltag e conditions s hould b e kept to a mi nimum, or sh ould be
prevented. If severe arcing occurs, remove the AC power
immediately and determine the cause by visual inspection
(incorrect install ation, crack ed or melted high volt age harness,
poor solderi ng, etc.). To maintain the pr oper minimum level of
soft X-Ray emission, components in the high voltage circuitry
including the picture tube must be the exact replacements or
alternatives approved by the manufacturer of the complete
product.
7. Do not check high voltage by drawing an arc. Use a high voltage
meter or a high voltage probe with a VTVM. Discharge the
picture tube before attempting meter connection, by connecting
a clip l ead to th e g roun d fr am e and c on necti ng t h e oth er end of
the lead through a 10k" 2W resistor t o the an ode button.
8. W hen servic e is requir ed, obser ve the origin al lead dress . Extr a
precaut ion shou ld be gi ven to assure c orrect l ead dr ess in t he
high voltage circuit area. Where a short circuit has occurred,
those comp onents that in dicat e evidenc e of over heating should
be replaced. Always use the manufacturer's replacement
components.
9.
Isolation Check
(Saf ety for El ectrical Shock Hazard)
After re-assembling the product, always perform an isolation
check on the exposed metal parts of the cabinet (antenna
termin als , vid eo/ au dio input and output t erm in als , Con t r ol knobs,
metal c abinet, s crewhead s, earph one j ack, contr ol shafts, etc.)
to be sure the product is safe to operate without danger of
electrical shock.
(1)
Dielectric Stren gth Test
The isol ation b etween th e AC pr imar y circuit and all metal parts
expos ed t o th e user, p ar tic u larly any exp osed metal part ha vi ng a
return p ath to the chassis should withst and a voltage of 3000V
AC (r.m.s .) for a period of one secon d.
(. . . . W ithstand a voltag e of 1100 V AC ( r.m.s.) to an applianc e
rated up t o 120V, and 3000V AC (r. m.s.) t o an appl iance rat ed
200V or mor e, f or a peri od of on e s ec on d.)
This method of test requires a test equipment not generally found
in the service trade.
(2)
Leak age Current Check
Plug the AC lin e c or d dir ec t l y int o t he AC outlet ( d o not use a line
isolation transformer during this check.). Using a "Leakage
Current Tester", measure the leakage current from each exposed
metal part of the cabinet, particularly any exposed metal part
having a return path to the chassis, to a known good earth
ground ( water pipe, etc. ). An y leak age c urr ent mus t not exceed
0.5mA AC (r.m.s.).
However, in tropical area, this must not exceed 0.2mA AC
(r.m.s.).
Alternate Check Method
""""
Plug the AC lin e c or d dir ec t l y int o t he AC outlet ( d o not use a line
isolati on transform er during t his check. ). Use an AC voltmet er
having 1000 ohms per volt or more sensitivity in the following
manner. Connect a 1 500" 10W resistor paralleled by a 0.15#F
AC-typ e capacitor betw een an expos ed metal part and a know n
good earth ground (water pipe, etc.). Measure the AC voltage
across the resistor with the AC voltmeter. Move the resistor
connect ion t o each exp os ed met al p art, part icul arl y any exp osed
metal part h avin g a return p ath to th e chassis , and meas ure th e
AC voltag e across the res istor. N ow, re vers e the plug in the AC
outlet and repeat each measurement. Any voltage measured
must not exceed 0.75V AC (r.m.s.). This corresponds to 0.5mA
AC (r.m.s.).
However , i n t ropical area, this m us t n ot exceed 0.3 V A C (r.m.s .) .
This corresponds to 0.2mA AC (r.m.s.).
AC VOLTMETER
0.15μF AC-TYPE
1500
GOOD EARTH GROUND
"
(HAVING 1000
OR MORE SENSITIVITY)
10W
/V,
"
PLACE THIS PROBE
ON EACH EXPOSED
METAL PART
No.51893
3
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V-21ETG2
A
V-2124EE
FEATURES
New chassis design en abl es us e of an interact i ve on-s c reen control.
"
Wide range voltage (110V~240V) AC power input (AV-21ETG2).
"
With AUDIO / VIDEO INPUT & OUTPUT terminal.
"
MUTING button can reduce the audio level to zero instantly.
"
Functional remote control to operate TV set (for channel select, volume control, power ON/OFF, etc.) from a distance.
"
2
C bus control utilizes single chip ICs for IF, V/C, DEF. VSM PRESET, PRESET & TURBO TIMER.
I
"
By means of AUTO PROGRAM, the TV stations can be selected automatically and the TV channels can also be rearranged automatically.
"
Built-in AI ECO (ECONOMY, ECOLOGY) sensor.
"
In accord ance with t he bright ness in a room , the brig htness and / of contras t of the pictur e can be ad justed aut omatically t o make t he
optimu m pic tu re which is easy on the eye.
Built-in ON TIMER, RETURN + & CHILD LOCK.
"
SYSTEM BLOCK DIAGRAM
IC702
MEMORY
SCL2/SDA2
IC701
MICRO
COMPUTER
IC301
VIDEO/CHROMA
DECORDER
SCL1/SDA1
TU001
TUNER
4
No. 51893
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FUNCTIONS
①
FRONT PANEL
■
MENU buttons
①
CHANNEL -/+ buttons
②
VOLUME -/+ buttons
③
ECO sensor
④
REMOTE CONTROL sensor
⑤
ON TIMER lamp
⑥
POWER lamp
⑦
MAIN POWER button
⑧
A/V INPUT terminal
⑨
HEADPHONE jack
⑩
V-21ETG2
V-2124EE
⑨
⑩
REAR TERMINAL
■
②③④
⑤⑥⑦
①
REMOTE CONTROL UNIT(RM-C364GY)
■
②
④
⑤
③
⑧
ANT Terminal
①
VIDEO INPUT Terminal
②
VIDEO OUTPUT Terminal
③
AUDIO INPUT Terminal
④
AUDIO OUT PUT Terminal
⑤
EC O SENSO R key
①
SOUND SYSTEM key
②
COLOUR SYSTEM key
③
TV/VIDEO key
④
OFF TIMER key
⑤
C HANN EL SCAN k ey
⑥
RETURN+key
⑦
DISPLAY key
⑧
CHANNEL -/+ key
⑨
POWER key
⑩
PICTURE MODE key
⑪
Number (CH.) key
⑫
⑬ -/--
MUTING key
⑭
MENU key
⑮
MENU ▲/▼ key
MENU -/+ key
VOLUME-/+ key
⑯
key
No. 51893
5
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V-21ETG2
A
V-2124EE
MAIN DIFFERENCE LIST
!
Part Name / Item
Model Name
AV-21ETG2AV-2124EE
MAIN PWBSCG-1292A-H2SCG-1293A-H2
!
DEG COILQQW0077-001QQW0124-001
!
FRONT CABINETGG10048-008A-HGG10048-009A-H
!
RATING LABELLC20377-001B-HGG20014-005A-H
PACKING CASEGG10056-062A-HGG10056-063A - H
REMOTE CONTROL UNITRM-C364GY-1H
!
INST. BOOKLCT1069-001A-HLCT1029-001A-H
!
DIGEST MANUALLCT1070-001A-H
WARRANTY CARDBT-54012-2
Power InputAC110~AC240VAC220~AC240V
6
No. 51893
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SPECIFIC SERVICE INSTRUCTIONS
DISASSEMBLY PROCEDURE
REMOVING THE REAR COVER
1. Unplug the power plug.
2. As shown in fig ure, remove t he
screw mar k ed
3. Remo ve the back board an d remove t he power c ord from t he
rear cover.
4. Withdraw the rear cover toward you.
and a screw mar k ed
""""
screws marked
5
.
####
REMOVING THE MAIN PW BOARD
After rem ovi ng the rear cover.
"
1. Slightly raise the both s ides of th e M A IN PW Board b y h an d an d
remove the PWB stopper of MAIN PW Board.
2. Withdraw the MAIN PW Board backward.
(If necessary, take off the wire clamp , connectors etc.)
REMOVING THE SPEAKER
After rem ovi ng the rear cover.
"
1. As shown in figure, remove the
screws marke d
2
$$$$
!!!!
.
and a
V-21ETG2
V-2124EE
CHECKING THE MAIN PW BOARD
1. To check the back side of the PW Board.
1) Pull out the MAIN PW Board. (Refer to REMOVING THE MAIN
PW Board)
2) Erect th e PW Boar d ver t ically so that you can easily ch eck the
back side of the PW Board.
[CAUTION]
When erecting the PW Board, be careful so that there will be no
"
co n tac ting w i th oth e r PW Bo ard.
Before turning on power, make sure that the CRT earth wire and
"
other conn ec tor are prop er l y c onn ec ted.
WIRE CLAMPING AND CABLE TYING
1. Be sure to clamp the wire.
2. Never remove the cable tie used for tying the wires together.
Should it be inadvertently removed, be sure to tie the wires with a
new cable tie.
No. 51893
7
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V-21ETG2
A
A
V-2124EE
FRONT CABI.
SPEAKER
CRT SOCKET
PWB
D
(
2)
××××
SPEAKER
MAIN PWB
HVT
REAR
COVER
D
(
2)
××××
PWB STOPER
C
B
BACK BOARD
(
5)
××××
POWER
CORD
8
No. 51893
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REPLACEMENT OF MEMORY ICs
1. MEMORY ICs
This mod el uses memor y ICs . This m em ory IC data ar e f or pr op er oper ation of the video and deflection circuits.
When replaci n g m emor y ICs , be sure to use ICs written with the ini ti al v alu es of d ata.
V-21ETG2
V-2124EE
2. PROCEDURE FOR REPLACING MEMORY ICs
(1) Power off
Switch th e p ow er off and disc onn ec t t h e power pl ug from the wall out let.
(2) Replace ICs
Be sure to u se memory ICs written with the initial data values.
(3) Power on
Connect the power plu g int o t h e w all ou tl et and switch t h e power on.
(4) Check and set SYSTEM CONSTANT SET
It must not adjust without adjustment signals.
・・・・
1) Press the
DISPLAY
CONTROL UNIT simultaneously.
2) The SERV IC E ME NU scr een of Fig. 1 will be dis pl ay ed.
3) While the S ERVIC E MEN U is dis pl ayed, again press the
PICTURE MODE
screen of Fi g. 2 will be displa yed .
4) Check the sett i ng val ues of the SYSTEM CO N S T A NT SET of Table 1 I f t h e
value is dif ferent, s elect the s etting it em with the
the correct value with the
5) Press the
DISPLAY
(5) Receiv e channel of set t i ng
Refer to the
(channels preset) as described
(6) User Setting
Check th e user set ting val ue of T able 2, and if setti ng valu e is diff erent, s et
the correct value.
For setting, refer to the
(7) Setting of SERVICE MENU
Verif y the s etting items of t h e SE RV IC E ME NU , an d r es et w h ere necess ary.
For setting, refer to the
key and the
PICTURE MODE
key of the REMOTE
DISPLAY
key s imultaneous ly, and th e SYSTEM CONSTAN T SET
▼/▲key, and set
MENU
- / + key.
MENU
key twice, and return to the normal screen.
OPERATING INSTRUCTIONS
OPERATING INSTRUCTIONS
SERVICE ADJUSTMENTS
and set the receive channels
.
.
key an d
SERVICE MENU
1.IF 2.V/C
3.DEF 4.VSM PRESET
5.PRESET
6.TURBO TIMER OFF
1-6 SELECT DISP : EXIT
******
***********
*******
************
**********
*** ** **
*** ** **** ***
*** ** ***** ** **
**.***
****
** ***
** ***** ***
Fig.1
SYSTEM CONSTANT-
SYSTEM CONSTANT SET 1
COLOUR: TRIPLE
BILINGUAL: NO
TUNER: MU
ECO SENSOR: YES
LANGUAGE: ****
: SELECT
/
- / + : OPERATEDISP : EXIT
SYSTEM CONSTANT-
SYSTEM CONSTANT SET 2
B/B SOUND:
LOCK: 180
COLOUR AUTO: NO
QSS: MINT
ALC: NO
TEXT RATE: 20
: SELECT
/
- / + : OPERATEDISP : EXIT
OFF
***
******
ⅠⅠⅠⅠ
ⅡⅡⅡⅡ
KEY ASSIGNMENT OF REMOTE CONTROL UNIT
PICTURE
MODE key
NUMBERS
SYSTEM CONSTANT-
SYSTEM CONSTANT SET 3
AMP TUNER: NO
VNR: YES
TEXT TABLE: CYL
: SELECT
/
- / + : OPERATEDISP : EXIT
ⅢⅢⅢⅢ
key
DISPLAY ke y
MENU
key
-/+
MENU
▼/▲
key
No. 51893
Fig.2
9
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V-21ETG2
A
A
V-2124EE
SETTING OF SYSTEM CONSTANT SET
Setting itemSetting contents
COLOUR
BILINGUAL
TUNER
ECO SENSOR
MULTI.
YES
MA
MU
YESNO
NO
Setting value
AV-21ETG2AV-2124EE
PALTRIPLE
TRIPLE
NO
MU
YES
LANGUAGE
B/B SOUND
LOCK
COLOUR AUTO
QSS
ALC
TEXT RATE
AMP TUNER
VNR
TEXT TABLE
USER SETTING VALUES
Setting itemSetting valueSetting itemSetting value
MAIN POWER SWOFFPICTURE MODE (VSM)BRIGHT
SUB POWERONLANGUAGEENGLISH (ENG)
CHANNEL POSITION1 POSITIONCHANNEL PRESETRefer to OPERATING INSTRUCTION