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SPECIFICATIONS ............................................................................................................................... 5
BLOCK DIAGRAM .............................................................................................................................. 6
1. SERVICE MODE ADJUSTMENT ................................................................................................................ 7
2. VCO/AGC ADJUSTMENT ........................................................................................................................... 7
3. PIP VIDEO GAIN ADJUSTMENT ................................................................................................................ 7
4. SOUND INPUT LEVEL ADJUSTMENT ....................................................................................................... 7
ALIGNMENT INSTRUCTIONS ............................................................................................................ 7
1. STEREO ADJUSTMENT ............................................................................................................................ 8
2. FOCUS ADJUSTMENT ............................................................................................................................... 8
3. GEOMETRY 8
4. WHITE BALANCE ADJUSTMENT.............................................................................................................. 10
5. SUB-BRIGHT ADJUSTMENT...................................................................................................................... 11
6. PIP DATA ADJUSTMENT............................................................................................................................ 11
IC DESCRIPTION ................................................................................................................................ 16
TROUBLE SHOOTING CHARTS........................................................................................................ 24
1.NO POWER .................................................................................................................................................. 24
2. NO PIP ......................................................................................................................................................... 26
3. NO PICTURE ............................................................................................................................................... 27
4. NO SOUND.................................................................................................................................................. 28
IC DC VOLTAGE CHARTS ................................................................................................................. 29
EXPLODED VIEW ............................................................................................................................... 32
ELECTRICAL PARTS LIST................................................................................................................. 34
A DIFFERENCE PARTS LIST BETWEEN.......................................................................................... 46
PCB LAYOUT ...................................................................................................................................... 61
PRODUCT SAFETY SERVICING GUIDELINES FOR AUDIO - VIDEO PRODUCTS
CAUTION : D O N O T AT T E M P T TO M O D IF Y T H IS P R O D U C T IN A N Y W AY. SUBJECT : X-RADIATION
N E V E R P E R F O R M C U S T O M IZ E D IN S TA L LAT IO N S W IT H O U T M A N U FA C -
T U R E R ° Ø S A P P R O VA L . U N A U T H O R IZ E D M O D IF IC AT IO N S W ILL N O T O N LY 1 . B E S U R E P R O C E D U R E S A N D IN S T R U C T IO N S TO A L L S E R V IC E P E R S O N -
V O ID T H E W A R R A N T Y, B U T M AY L E A D T O Y O U R B E IN G L IA B L E F O R A N T N E L C O V E R T H E S U B JE C T O F X -R A D IAT IO N . T H E O N LY P O T E N T IA L
R E S U LT IN G P R O P E R T Y D A M A G E O R U S E R IN JU R Y. S O U R C E O F X -R AY S IN C U R R E N T T.V. R E C E IV E R S IS T H E P IC T U R E T U B E .
S E R V IC E W O R K S H O U L D B E P E R F O R M E D O N LY A FT E R Y O U A R E T H O R - H O W E V E R , T H IS T U B E D O E S N O T E M IT X -R AY S W H E N T H E H IG H V O LT -
O U G H LY FA M IL IA R W IT H A LL O F T H E F O L LO W IN G S A F E T Y C H E C K S A N D A G E IS AT T H E FA C T O R Y S P E C IF IE D L E V E L . T H E P R O P E R VA L U E IS
S E R V IC IN G G U ID E L IN E S . T O D O O T H E R W IS E , IN C R E A S E S T H E R IS K O F G IV E N IN T H E A P P L IC A B L E S C H E M AT IC . O P E R AT IO N AT H IG H E R V O LT -
P O T E N T IA L H A Z A R D S A N D IN J U R Y TO T H E U S E R . A G E S M AY C A U S E A FA ILU R E O F T H E P IC T U R E T U B E O R H IG H V O LTA G E
W H IL E S E R V IC IN G , U S E A N IS O LAT IO N T R A N S F O R M E R F O R P R O T E C T IO N
S U P P LY A N D , U N D E R C E R TA IN C IR C U M S TA N C E S , A M Y P R O D U C E R A D IA -
F R O M A .C . LIN E S H O C K .
T IO N IN E X C E S S O F D E S IR A B L E LE V E LS .
2 . O N LY FA C TO R Y S P E C IF IE D C .R .T A N O D E C O N N E C T O R S M U S T B E U S E D .
SAFETY CHECKS
D E G A U S S IN G S H IE L D S A L S O S E R V E A S X -R AY S H IE L D IN C O LO R S E T S .
A FT E R T H E O R IG IN A L S E R V IC E P R O B L E M H A S B E E N C O R R E C T E D , A C H E C K A LW AY S R E -IN S TA LL T H E M .
S H O U LD B E M A D E O F T H E F O LL O W IN G : 3 . IT IS E S S E N T IA L T H AT S E R V IC E P E R S O N N E L H AV E AVA ILA B L E A N A C C U -
R AT E A N D R E LIA B LE H IG H V O LTA G E M E T E R . T H E C A L IB R AT IO N O F T H E
SUBJECT:FIRE & SHOCK HAZARD M E T E R S H O U LD B E C H E C K E D P E R IO D IC A L LY A G A IN S T A R E F E R E N C E
S TA N D A R D . S U C H A S T H E O N E AVA IL A B LE AT Y O U R D IS T R IB U T O R .
1 . B E S U R E T H AT A L L C O M P O N E N T S A R E P O S IT IO N E D IN S U C H A W AY A S 4 . W H E N T H E H IG H V O LTA G E C IR C U IT R Y IS O P E R AT IN G P R O P E R LY T H E R E
T O AV O ID P O S S IB IL IT Y O F A D JA C E N T C O M P O N E N T S H O R T S . T H IS IS IS N O P O S S IB IL IT Y O F A N X -R A D IAT IO N P R O B L E M . E V E R Y T IM E A C O L O R
E S P E C IA LLY IM P O R TA N T O N T H O S E M O D U LE S W H IC H A R E T R A N S - C H A S S IS IS S E R V IC E D , T H E B R IG H T N E S S S H O U L D B E R U N U P A N D
P O R T E D T O A N D F R O M T H E R E PA IR S H O P. D O W N W H ILE M O N ITO R IN G T H E H IG H V O LTA G E W IT H A M E T E R TO B E
2 . N E V E R R E LE A S E A R E PA IR U N L E S S A L L P R O T E C T IV E D E V IC E S S U C H A S C E R TA IN T H AT T H E H IG H V O LTA G E D O E S N O T E X C E E D T H E S P E C IF IE D
IN S U LATO R S , B A R R IE R S , C O V E R S , S H IE L D S , S T R A IN R E L IE F S , P O W E R VA LU E A N D T H AT IT IS R E G U LAT IN G C O R R E C T LY. W E S U G G E S T T H AT
S U P P LY C O R D S , A N D O T H E R H A R D W A R E H AV E B E E N R E IN S TA L L E D P E R Y O U A N D Y O U R S E R V IC E O R G A N IZ AT IO N R E V IE W T E S T P R O C E D U R E S
O R IG IN A L D E S IG N . B E S U R E , T H AT T H E S A F E T Y P U R P O S E O F T H E
S O T H AT V O LTA G E R E G U LAT IO N IS A LW AY S C H E C K E D A S A S TA N D A R D
P O LA R IZ E D LIN E P L U G H A S N O T B E E N D E F E AT E D .
S E R V IC IN G P R O C E D U R E , A N D T H AT T H E H IG H V O LTA G E R E A D IN G B E
3 . S O L D E R IN G M U S T B E IN S P E C T E D T O D IS C O V E R P O S S IB LE C O L D S O L -
D E R JO IN T S , S O LD E R S P L A S H E S O F S H A R P S O L D E R P O IN T S . B E C E R - R E C O R D E D O N E A C H C U S T O M E R ° Ø S IN V O IC E .
TA IN T O R E M O V E A LL L O O S E F O R E IG N PA R T IC L E S . 5 . W H E N T R O U B LE S H O O T IN G A N D M A K IN G T E S T M E A S U R E M E N T S IN A
4 . C H E C K F O R P H Y S IC A L E V ID E N C E O F D A M A G E O R D E T E R IO R AT IO N T O P R O D U C T W IT H A P R O B LE M O F E X C E S S IV E H IG H V O LTA G E , AV O ID
PA R T S A N D C O M P O N E N T S , F O R F R AY E D L E A D S , D A M A G E D IN S U LAT IO N B E IN G U N N E C E S S A R ILY C L O S E T O T H E P IC T U R E T U B E A N D T H E H IG H
(IN C LU D IN G A .C . C O R D ), A N D R E P L A C E IF N E C E S S A R Y. F O L LO W O R IG I- V O LTA G E S U P P LY. D O N O T O P E R AT E T H E P R O D U C T L O N G E R T H A N IS
N A L L AY O U T, L E A D LE N G T H A N D D R E S S . N E C E S S A R Y T O L O C AT E T H E C A U S E O F E X C E S S IV E V O LTA G E .
5 . N O L E A D O R C O M P O N E N T S H O U LD TO U C H A R E C E IV IN G T U B E O R A 6 . R E F E R TO H V, B + A N D S H U T D O W N A D JU S T M E N T P R O C E D U R E S
R E S IS TO R R AT E D AT 1 W AT T O R M O R E . LE A D T E N S IO N A R O U N D P R O - D E S C R IB E D IN T H E A P P R O P R IAT E S C H E M AT IC A N D D IA G R A M S (W H E R E
T R U D IN G M E TA L S U R FA C E S M U S T B E AV O ID E D . U S E D ).
6 . A L L C R IT IC A L C O M P O N E N T S S U C H A S F U S E S , F LA M E P R O O F R E S IS T O R ,
C A PA C ITO R S , E T C . M U S T B E R E P LA C E D W IT H E X A C T FA C T O R Y T Y P E S . SUBJECT : IMPLOSION
D O N O T U S E R E P L A C E M E N T C O M P O N E N T S O T H E R T H A N T H O S E S P E C I-
F IE D O R M A K E U N R E C O M M E N D E D C IR C U IT M O D IF IC AT IO N S . 1 . A L L D IR E C T V IE W E D P IC T U R E T U B E S A R E E Q U IP P E D W IT H A N IN T E G R A
7 . A FT E R R E -A S S E M B LY O F T H E S T E A LW AY S P E R F O R M A N A .C . L E A K A G E IM P LO S IO N P R O T E C T IO N S Y S T E M . B U T C A R E S H O U L D B E TA K E N T O
T E S T O N A L L E X P O S E D M E TA L LIC PA R T S O F T H E C A B IN E T. (T H E C H A N -
AV O ID D A M A G E D U R IN G IN S TA L LAT IO N . AV O ID S C R AT C H IN G T H E
N E L S E L E C T O R K N O B , A N T E N N A T E R M IN A LS , H A N D LE A N D S C R E W S ) T O
T U B E . O F S C R AT C H E D R E P LA C E IT.
B E S U R E T H E S E T IS S A F E TO O P E R AT E W IT H O U T D A N G E R O F E L E C T R I-
C A L S H O C K . D O N O T U S E A LIN E IS O L AT IO N T R A N S F O R M E R D U R IN G 2 . U S E O N LY R E C O M M E N D E D FA C T O R Y R E P L A C E M E N T T U B E S .
T H IS T E S T U S E A N A .C . V O LT M E T E R , H AV IN G 5 00 0 O H M S P E R V O LT O R
M O R E S E N S IT IV IT Y, IN T H E F O LL O W IN G M A N N E R : C O N N E C T A 1 50 0 O H M SUBJECT : TIPS ON PROPER INSTALLATION
1 0 W AT T R E S IS T O R , PA R A L LE LE D B Y A .1 5 M F D . 1 50 V A .C . T Y P E C A PA C I-
T O R B E T W E E N A K N O W N G O O D E A R T H G R O U N D (W AT E R P O P E , C O N - 1 . N E V E R IN S TA L L A N Y P R O D U C T IN A C L O S E D -IN R E C E S S , C U B B Y H O L E O R
D U IT, E T C .) A N D T H E E X P O S E D M E TA LL IC PA R T S , O N E AT A T IM E . C L O S E LY F IT T IN G S H E L F S PA C E , O V E R O R C L O S E TO H E AT D U C T, O R IN
M E A S U R E T H E A .C . V O LTA G E A C R O S S T H E C O M B IN AT IO N O F 1 50 0 O H M T H E PAT H O F H E AT E D A IR F L O W .
R E S IS TO R A N D .1 5 M F D C A PA C IT O R . R E V E R S E T H E A .C . P LU G A N D 2 . AV O ID C O N D IT IO N S O F H IG H H U M ID IT Y S U C H A S : O U T D O O R PAT IO
R E P E AT A .C . V O LTA G E M E A S U R E M E N T S F O R E A C H E X P O S E D M E TA L LIC IN S TA LL AT IO N S W H E R E D E W IS A FA C TO R , N E A R S T E A M R A D IATO R S
PA R T. V O LTA G E M E A S U R E D M U S T N O T E X C E E D .75 V O LT S R .M .S T H IS W H E R E S T E A M L E A K A G E IS A FA C TO R , E T C .
C O R R E S P O N D S TO 0 .5 M IL LIA M P A .C . N AY VA LU E E X C E E D IN G T H IS L IM IT 3 . AV O ID P L A C E M E N T W H E R E D R A P E R IE S M AY O B S T R U C T R E A R V E N T IN G .
C O N S T IT U T E S A P O T E N T IA L S H O C K H A Z A R D A N D M U S T B E C O R R E C T E D T H E C U S TO M E R S H O U L D A L S O AV O ID T H E U S E O F D E C O R AT IV E
IM M E D IAT E LY. S C A R V E S O R O T H E R C O V E R IN G S W H IC H M IG H T O B S T R U C T V E N T IL A -
T IO N .
A.C. VOLTMETER 4 . W A L L A N D S H E L F M O U N T E D IN S TA LL AT IO N S U S IN G A C O M M E R C IA L
M O U N T IN G K IT, M U S T F O L L O W T H E FA C T O R Y A P P R O V E D M O U N T IN G
IN S T R U C T IO N S . A P R O D U C T M O U N T E D T O A S H E L F O R P LAT F O R M M U S T
R E TA IN IT S O R IG IN A L F E E T (O R T H E E Q U IVA LE N T T H IC K N E S S IN S PA C -
E R S )T O P R O V ID E A D E Q U AT E A IR F LO W A C R O S S T H E B O T T O M , B O LT S
O R S C R E W S U S E D F O R FA S T E N E R S M U S T N O T T O U C H A N Y PA R T S O R
0.15 uF W IR IN G . P E R F O R M L E A K A G E T E S T O N C U S T O M IZ E D IN S TA L LAT IO N S .
GOOD EARTH GROUND PLACE THIS PROBE
5 . C A U T IO N C U S TO M E R S A G A IN S T T H E M O U N T IN G O F A P R O D U C T O N
1500 OHM
SUCH AS THE WATER ON EACH EXPOSED S L O P IN G S H E L F O R A T ILT E D P O S IT IO N , U N LE S S T H E P R O D U C T IS
PIPE, CONDUIT, ETC. METAL PART
10WATT P R O P E R LY S E C U R E D .
6 . A P R O D U C T O N A R O LL -A B O U T C A R T S H O U LD B E S TA B L E O N IT S M O U N T -
SUBJECT : GRAPHIC SYMBOLS IN G T O T H E C A R T. C A U T IO N T H E C U S T O M E R O N T H E H A Z A R D S O F T R Y -
IN G T O R O L L A C A R T W IT H S M A LL C A S T E R S A C R O S S T H R E S H O LD S O R
T H E LIG H T N IN G F LA S H W IT H A R R O W H E A D S Y M B O L , D E E P P IL E C A R P E T S .
W IT H IN A N E Q U ILAT E R A L T R IA N G LE , IS IN T E N D E D 7 . C A U T IO N C U S T O M E R S A G A IN S T T H E U S E O F A C A R T O R S TA N D W H IC H
T O A L E R T T H E S E R V IC E P E R S O N N E L TO T H E P R E S - H A S N O T B E E N LIS T E D B Y U N D E R W R IT E R S LA B O R AT O R IE S . IN C . F O R
E N C E O F U N IN S U LAT E D "D A N G E R O U S V O LTA G E "
U S E W IT H T H E IR S P E C IF IC M O D E L O F T E L E V IS IO N R E C E IV E R O R
T H AT M AY B E O F S U F F IC IE N T M A G N IT U D E TO C O N -
G E N E R IC A L LY A P P R O V E D F O R U S E W IT H T.V.S O F T H E S A M E O R
S T IT U T E A R IS K O F E L E C T R IC S H O C K .
L A R G E R S C R E E N S IZ E .
T H E E X C L A M AT IO N P O IN T W IT H IN A N E Q U IL AT E R A L 8 . C A U T IO N C U S TO M E R S A G A IN S T T H E U S E O F E X T E N S IO N C O R D S ,
T R IA N G L E IS IN T E N D E D T O A LE R T T H E S E R V IC E E X P L A IN T H AT A F O R E S T O F E X T E N S IO N S S P R O U T IN G F R O M A S IN G LE
P E R S O N N E L T O T H E P R E S E N C E O F IM P O R TA N T O U T LE T C A N L E A D TO D IS A S T R O U S C O N S E Q U E N C E S TO H O M E A N D
S A F E T Y IN F O R M AT IO N O N S E R V IC E L IT E R AT U R E . FA M ILY.
PRODUCT SAFETY SERVICING GUIDELINES FOR COLOR TELEVISION RECEIVERS
CAUTION : Do not attem pt to m odify this product in any way. Unau- GRAPHIC SYM BOLS :
thorized m odifications will not only void the warranty, but m ay lead to
your being liable for any resulting property dam age or user injury. The lightning flash with arrowhead symbol,
Service work should be perform ed only after you are thoroughly within an equilateral triangle, is intended to alert
familiar with all of the following safety checks and servicing guide- the service personnel to the presence of uninsu-
lines. To do otherwise, increases the risk of potential hazards and lated "dangerous voltage" that m ay be of suffi-
injury to the user. cienty magnitude to constitute a risk of electric
shock.
SAFETY CHECKS
The exclam ation point within an equilateral tri-
After the original service problem has been corrected, a check should angle is intended to alert the service personnel
be m ade of the following: to the presence of im portant safety inform ation
in service literature.
SUBJECT : FIRE & SHOCK HAZARD
Fuse sym bol is printed on pcb adjacent to the
1. Be sure that all components are positioned in such a way as to fuse, with "RISK OF FIRE REPLACE FUSE AS
avoid possibility of adjacent component shorts. This is especially MARKED". The sym bol is explained in the ser-
im portant on those chassis which are transported to and from the vice manual with the following wording or equiv-
repair shop. alent.
2. Never release a repair unless all protective devices such as insula-
tors, barriers, covers, shields, strain reliefs, and other hardware "CAUTION : FOR CONTINUED PROTECTION AGAINST FIRE
have been reinstalled per original design. H AZARD, REPLACE ONLY W ITH SAME TYPE (6.3A, 250V)" and
3. Soldering must be inspected to discover possible cold solder joints, "ATTENTION: AFIN D'ASSU UNE PROTECTION PERM ANENTE
frayed leads, dam aged insulation (including A.C. cord), solder C ONTRE LES RISQUES D'INCENDIE, REMPLACER UNIQUE-
splashes or sharp solder points. Be certain to rem ove all loose for- M ENT PAR UN FUSIBLE DE MEME TYPE ET DE "6.3A, 250V".
eign particals.
4. Check for physical evidence of damage or deterioration to parts SUBJECT : X-RADIATION
and components, and replace if necessary follow original layout,
lead length and dress. 1. Be sure procedures and instructions to all service personnel cover
5. No leads or com ponents should touch a receiving tube or a resistor the subject of X-rays in current T.V. receivers is the picture tube.
rated at 1 watt or m ore. Lead tension around protruding m etal sur- However, this tube does not em it X-rays when the high voltage is
faces m ust be avoided. at the factory specified level. The proper value is given in the appli-
6. All critical com ponents such as fuses, flameproof resistors, capaci- cable schem atic. Operation at higher voltages m ay cause a failure
tors, etc. must be replaced with exact factory types. Do not use of the picture tube or high voltage supply and, under certain cir-
replacement com ponents other than those specified or m ake cum stances, m ay produce radiation in excess of desirable levels.
unrecomm ended circuit m odifications. 2. Only factory specified C.R .T. anode connectors m ust be used.
7. After re-assem bly of the set always perform an A.C. leakage test Degaussing shields also serve as X-ray shield in color sets.
on all exposed m etallic parts of the cabinet, (the channel selector Always re-install them .
knob, antenna terminals, handle and screws) to be sure the set is 3. It is essential that the servicem an has available an accurate and
safe to operate without danger of electrical shock. Do not use a reliable high voltage m eter. The calibration of the m eter should be
line isolation transform er during this test. Use an A.C . voltmeter, checked perio - dically against a reference standard. Such as the
having 5000 ohm s per volt or more sensitivity, in the following one available at your distributor.
m anner : connect a 1500 ohm 10 watt resistor, paralleled by a 15 4. W hen the high voltage circuitry is operating properly there is no
m fd. 150V A.C. type capacitor between a known good earth possibility of an X-radiation problem . Every time a color chassis is
ground (9water pipe, conduit, etc.) and the exposed metallic parts, serviced, the brightness should be run up and down while m onitor-
one at a tim e. M easure the A.C. voltage across the combination of ing the high voltage with a m eter to be certain that the high voltage
1500 ohm resistor and 0.15 MFD capacitor. Reverse the A.C. plug does not exceed the specified value and that it is regulating cor-
and repeat A.C. voltage measurem ents for each exposed m etallic rectly. W e suggest that you and your service organization review
part. Voltage m easured must not exceed 0.75 volts R.M .S. This test procedures so that voltage regulation is always checked as a
corresponds to 0.5 milliam p A.C. Any value exceeding this limit standard servicing procedure. And that the high voltage reading be
constitutes a potential shock hazard and m ust be corrected imm e- recorded on each custom er's invoice.
diately. 5. W hen troubleshooting and m aking test m easurem ents in a
receiver with a problem of excessive high voltage, avoid being
unnecessarilyclose tothepicturetubeand thehighvoltagecom partment.
A.C. VO LT ME TER
Do not operate the chassis longer than is necessary to locate the
cause of excessive voltage.
6. Refer to HV, B+and Shutdown adjustment procedures described in
the appropriate schem atic and diagram s(where used).
0.15 uF
G oo d e arth gro un d ,
su ch a s the w ater
1500 OHM P la ce th is p rob e
p ipe , co nd u it, e tc .
o n e a ch ex po se d
1 0 W A TT m e ta l p a rt.
SUBJECT : IMPLOSION 4. Wall and shelf m ounted installations using a comm ercial mounting
kit, must follow the factory approved m ounting instructions. A
1. All direct viewed picture tubes are equipped with an integral implo- receiver mounted to a shelf or platform must retain its original
sion protection system , but care should be taken to avoid damage feet(or the equivalent thickness in spacers) to provide adequate
during installation. Avoid scratching the tube. If scratched, replace are flow across the bottom, bolts or screws used for fasteners
it. m ust not touch and parts or wiring. Perform leakage test on cus-
2. U se only recomm ended factory replacement tubes. tom ized installations.
5. Caution customers against the m ounting of a receiver on sloping
SUBJECT : TIPS ON PROPER INSTALLATION shelf or a tilted position, unless the receiver is properly secured.
6. A receiver on a roll-about cart should be stable on its mounting to
1. Never install any receiver in closed-in recess, cubbyhole or closely the cart. Caution the customer on the hazards of trying to roll a cart
fitting shelf space over, or close to heat duct, or in the path of with sm all casters across thresholds or deep pile carpets.
heated air flow. 7. Caution custom ers against the use of a cart or stand which has not
2. Avoid conditions of high hum idity such as : Outdoor patio installa- been listed by underwriters laboratories, inc. For use with their
tions where dew is a factor. Near steam radiators where steam specific model of television receiver or generically approved for
leakage is a factor, etc. use with T.V.'s of the sam e or larger screen size.
3. Avoid placem ent where draperies may obstruct rear venting. The
custom er should also avoid the use of decorative scarves or other
coverings which might obstruct ventilation.
SPECIFICATIONS
DTH-25G1FST DTH-29G1FST, DTH-29G 3FST
MODEL DTH-25G1FSP DTH-29G1FSP, DTH-29G 3FS P
DTH-25G1FS DTH-29G1FS, D TH-29G3FS
T V S TA N D AR D N T SC /PA L-M /PAL-N
M AIN S VO LTAG E 100~250V AC , 50/60H z
P O W E R C O N SU M PT IO N 110W 120W
S O U N D O U T P UT 5W +5W
S PE A K E R 7W 8O hm (2E A )
A NT E N NA IM P ED A N CE 75 ohm unbalanced
T UN IN G S Y S T EM F requency Synthesize Tuning System
M EM O RY CH A N NE L 181 C hannels
R EC E PT IO N C H AN N E L U N IT VHF TV LO W : C H 2 - C H 6
H IG H : C H 7 - C H 13
C H 1, CH 14 - C H 125
U HF T V C H14 - C H69
R EM O T E C O NT R O L U N IT R-23B 04
S CR E E N S IZ E 25" D iagonal 29" D iagonal
W E IG H T 35K g 42K g
T UN E R TY P E Varactor Type w ith PLL
A UX . T E RM IN AL(IN P UT ) F ront : Video, A udio(L/R )
R ear : Video, A udio(L/R )
A UX . T E RM IN AL(O U TP U T ) R ear : Video, A udio( L/R )
BLOCK DIAGRAM
ALIGNMENT INSTRUCTIONS
- ALIGNMENT BY USER REMOCON
1. SERVICE MODE ADJUSTMENT
How to enter into Service M ode.
1) Direct the rem ote control to the reception window of TV.
2) Push button of rem ote control in sequence.
1 M U TE RE CALL M UTE
3) Then, the screen will appear as follows.
S 5 : PIC ADJ
S 6 : GEO MADJ
S5 : PIC ETRY
S 7 : :PIP ADJ
S6 GEOMETRY
S 8 : RGB ADJ
S7 : PIP ADJ
S 9 : DP ADJ
S 10 : P/S ADJ
S8 : RGB ADJ
S 11 : AUTO P IC
TO EXIT ADJ ER O FF
S9 : DP : POW
W hen you select a item , its turns into the green.
How to m em orize the adjusted settings in service m ode; M ust press RECALL button the state which the screen is
displaying each of service m enus after all adjustm ents are com pleted each of all service m enu.
2. VCO/AGC ADJUSTMENT
1) Receive the C OLOR BAR signal. (INPUT LEVEL : 60 dBuV)
2) Select the S10 of service m ode to display item s, then press the VO L buttons on the rem ote control.
3) Press CH buttons on the rem ote control to select VCO or AGC
4) It will start auto adjustm ent if you press V OL buttons.
5) After adjustm ent, the " VCO OK *** " or " AGC OK *** " O SD will be displayed.
VCO
VCO
AGC
AGC
VCO31
S M ANUAL
VCO31
S MANUAL
3. PIP VIDEO GAIN ADJUSTMENT
1) Turn ON the PIP and receive the COLOR BAR PATTE RN.
2) Turn the volum e R 128 to set 1Vp-p on TP1.
4. SOUND INPUT LEVEL ADJUSTMENT
1) R eceive the 100% m od. M ONO . Signal.
ALIGNMENT INSTRUCTIONS
V OL buttons on the rem ote control.
2) Select the S10 of service m ode to display item s, then press the
3) Press CH buttons on the remote control to select S M ANUAL and press VOL buttons on the remote control.
4) Press CH buttons on the rem ote control to select IN PUT LEVE L and press VOL buttons to set TP2
becom e 490m V(+20m V/-5m V).
5) Press the R ECALL button of rem ote control to store.
INPUT LE VEL
INPUT LEVEL 15
15
W IDEB AND 23
WIDEBAND
SPEC TRAL 23
32
SPECTRAL 32
5. STEREO ADJUSTMENT
1) R eceive the Zenith M TS signal of 1KH z CH(L only).
2) C onnect scope at TP2 to verify Rout correspondent.
V OL buttons on the rem ote control.
3) Select the S10 of service m ode to display item s, then press the
4) Press CH buttons on the remote control to select S M ANUAL and press VOL buttons on the remote control.
5) Press CH buttons on the remote control to select WIDEBAND and press VOL Buttons on the remote control.
6) Adjust w ith VOL buttons till the Rout(scope) becom e m inim um .
7) Press CH buttons on the remote control to select SPECTRAL and press VOL Buttons on the remote control.
8) Adjust w ith VOL buttons till the Rout(scope) becom e m inim um .
9) Press the RECALL button on the rem ote control to store.
INPUT LEVEL 15
INPUT LEVEL 15
W ID EBAND 23
WIDEBAND 2332
SP ECTRAL
SPECTRAL 32
6. FOCUS ADJUSTMENT
1) Receive the R ETM A PATTER N signal.
2) Adjust the FOC US VO LUM E of FBT to obtain the clearest picture
7. GEOMETRY
7-1. VERTICAL CENTER ADJUSTMENT
1) Receive the R ETM A PATTER N signal.
2) Set the user control AUTO P ICTUR E to STA NDARD m ode.
3) Select the S6 of service m ode to display item s, then press the VO L buttons on the rem ote control.
ALIGNMENT INSTRUCTIONS
4)Press CH buttons on the rem ote control to select V CEN TER and press VOL
buttons on the rem ote
control to adjust the horizontal line of RETMA PATTERNS center may meet with the mechanical CENTER of CRT.
5) Press the RECALL button on the rem ote control to store.
V CENTER 05
V V SIZE
CENTER 05 31
V H CENTE R 31 18
SIZE
H CENTER 18
V LIN 10
VS COR 09
G EO A DJ ON
V LIN 10
7-2. VERTICAL SIZE ADJUSTM E NT
1) R eceive the RETM A PATTERN signal.
2) Set the user control AU TO PICTU RE to STANDARD m ode.
V OL buttons on the rem ote control.
3) Select the S6 of service m ode to display item s, then press the
4) Press CH buttons on the remote control to select V SIZE and press VOL buttons on the rem ote control
to adjust the CENTER OF CIRCUMFERENCE of big circle may m eet with the upper and Lower sides of screen.
5) Press the RECALL button on the rem ote control to store.
V CENTER 05
V CENTER 05
V SIZE 31
VHSIZE
CENTER 31 18
H CENTER 18
V LIN 10
VS COR 09
GEO AD J ON
V LIN 10
7-3. VERTICAL LINEARITY ADJUSTM EN T
1) R eceive the RETM A PATTERN signal.
2) Set the user control AU TO PICTU RE to STANDARD m ode.
3) Select the S6 of service m ode to display item s, then press the V OL buttons on the rem ote control.
4) Press CH buttons on the rem ote control to select V LIN,VS CO R
5) Adjust VOL buttons to be round center circle of RETM A PATTERN
6) Press the RECALL button on the rem ote control to store.
V CENTE R 05
V V SIZE
CENTER 05 31
V H CEN TER 31 18
SIZE
H CENTER 18
V LIN 10
V S CO R 09
G EO ADJ ON
V LIN 10
ALIGNMENT INSTRUCTIONS
7-4. HORIZONTA L CENTER ADJUS TM ENT
1) Receive the RETM A PATTE RN signal.
2) Set the user control AUTO PICTU RE to STA NDARD m ode.
VO L buttons on the rem ote control.
3) Select the S6 of service m ode to display item s, then press the
4) P ress CH buttons on the rem ote control to select H CENTER and press VO L buttons on the rem ote
control to adjust the left and right W IDTH of R ETM A PATTER N becom e sym m etrical.
5) Press the REC ALL button on the rem ote control to store.
VVCENTER 05 05
CENTER
V SIZE 31
VHSIZE
CENTER 31 18
H CENTER 18
V LIN 10
VS COR 09
GEO AD J ON
V LIN 10
7-5. HORIZONTAL W IDTH ADJUSTM ENT
R eceive the RETM A PATTERN signal.
S et the user control AU TO PICTU RE to STANDARD m ode.
A djust R406 in order to set the left and right end of RETM A PATTERN on point 5.
7-6. SIDE PINCUSHION ADJUSTM ENT
1) R eceive the RETM A PATTERN signal.
2) Set the user control AU TO PICTU RE to STANDARD m ode.
VOL buttons on the rem ote control.
3) Select the S11 of service m ode to display item s, then press the
4) Press CH buttons on the rem ote control to select SG PATTERN 8 and press VOL buttons on the
rem ote control to select SG PATTE RN 2 of SG PATTER N 8
5) Adjust R 409 in order to set the second line from right side becom e straight.
6) After PO W ER OFF/ON readjust HO RIZON TAL W ID TH with R406.
STANDARD
STANDARD STANDARD
SO FT SO FT
SOFT NG
STRO STRO NG
M USIC M USIC
STRONG
M OVIE M OVIE
SG PATTERN 8
MUSIC SG PATTERN 2
MOVIE
8. WHITE BALANCE ADJUSTMENT
1) Execute HE AT R UN of the TV set over 30 m inutes.
2) C onnect the signal output of white balance tester(Nitsuki 2840) to the ANTENNA (or VIDEO IN) input of theTV S ET.
Stick and fix the SENSO R to the center position of CRT.
3) Select the S8 of service m ode to display item s, then press the VOL buttons on the rem ote control.
ALIGNMENT INSTRUCTIONS
4) Adjust the R.G.B B IAS and G.B DR IVE, with VOL buttons, in order that R.G .B of the High and Low BEAM m ay
m eet with the CENTER LED of each m easuring instrum ent.
5) At this tim e, the memorized coordinates of the white balance tester, unless otherwise specified, use above coordinates
and color temperature(9600°K 265X295).
6) Press the RE CALL button on the rem ote control to store.
GG D RIVE
DRIVE 061
061
B DR IVE 070
B DRIVE 070
R CU T 127
B CU T 060
G C UT 087
9. SUB-BRIGHT ADJUSTMENT
1) R eceive the RETM A PATTERN signal.
2) Set the user control AU TO PICTU RE to STANDARD m ode.
V OL buttons on the rem ote control.
3) Select the S9 of service m ode to display item s, then press the
4) Press CH buttons on the rem ote control to select BRIG HTNESS and press VOL buttons on the rem ote
control to adjust Sub bright level in order that the gradation pattern m ay serve 18% of BRIGHTN ESS.
5) Press the RECALL button on the rem ote control to store.
DP ADJUST
DP ADJUST
BRIG NTNESS 32
CONTR AST
BRIGNTNESS 32 14
COLOR 20
CONTRAST
TINT 1445
COLOR 20
TINT 45
10. PIP DATA ADJUSTMENT
1) Select the S7 of service m ode to display item s, then press the
VO L
buttons on the rem ote control.
2) Adjust PIP sub data.(TINT : 057, Y DELAY : 00, SYNC DELAY : 15, VSIDEL : 06, VSPDE L : 00)
3) Press the RECALL button on the rem ote control to store.
PIP TINT 057
PIP TINT 057
H POS 146
HV POS
POS 146 032
Y DELAY 00
VSYN C DE LAY 032 15
POS
YVSIDEL
DELAY 00 06
VSP DEL 00
SYNC DELAY 15
ALIGNMENT INSTRUCTIONS
- ALIGNMENT BY SERVICE REMOCON
1. VCO/AGC ADJUSTMENT
1) Receive the CO LOR BAR signal. (INPUT LEVEL : 60 dB uV )
2) Press S10 button on the SV C rem ote control to display M ENU .
3) Press CH buttons on the SVC rem ote control to select V CO or A GC
4) It w ill start auto adjustm ent if you press VO L key
5) After adjustm ent, the "VC O OK ***" or "AG C OK ***" OS D will be displayed.
2. PIP VIDEO GAIN ADJUSTMENT
1) Turn ON the PIP and receive the COLOR BAR PATTERN.
2) Turn the volum e R128 to set 1Vp-p on TP1.
3. SOUND INPUT LEVEL ADJUSTMENT
1) Receive the 100% m od. M ONO. Signal.
2) Press S10 button on the SVC rem ote control to display M EN U
3) Press CH buttons on the SVC rem ote control to select S M ANUAL and press V OL buttons on the S VC
rem ote control
4) P ress CH buttons on the SVC rem ote control to select IN PUT LE VEL and press VOL buttons to set TP2
becom e 490m V(+20m V /-5m V).
5) Press the RECALL button of SVC rem ote control to store.
4. STEREO ADJUSTMENT
1) Receive the Zenith M TS signal of 1K Hz CH(Lonly).
2) Connect scope at TP2 to verify Rout correspondent.
3) Press S10 button on the SVC rem ote control to display M ENU.
4) Press
CH buttons on the S VC rem ote control to select S M ANUA L and press VOL buttons on the SVC
rem ote control
5) Press C H buttons on the S VC rem ote control to select W IDEBA ND and press VO L Buttons
6) Adjust with VO L buttons till the Rout(scope) becom e m inim um .
7) Press C H buttons on the S VC rem ote control to select SPEC TRAL and press VOL Buttons
8) Adjust with VO L buttons till the Rout(scope) becom e m inim um .
9) Press the RECA LL button on the SVC rem ote control to store.
5. SCREEN ADJUSTMENT
1) Receive the RETM A PATTERN signal.
2) Obtain horizontal line pressing S 2 button on the SVC rem ote control.
3) Adjust the SCREEN VOLUM E of FBT in order to the horizontal line of screen disappear.
4) Press the S2 button on the SVC rem ote control.
6. FOCUS ADJUSTMENT
1) R eceive the RETM A PATTERN signal.
2) Adjust the FO CUS V OLUM E of FBT to obtain the clearest picture.
ALIGNMENT INSTRUCTIONS
7. GEOMETRY
7-1. VERTICAL CENTER ADJUSTMENT
1) Receive the RETM A PATTERN signal.
2) Set the user control A UTO PIC TURE to STANDARD m ode.
3) Press S6 button on the SVC rem ote control to display M ENU
4) Press CH buttons on the S VC rem ote control to select V CENTER and press VOL buttons on the
SVC rem ote control to adjust the horizontal line of RETM A PATTERNS center m ay m eet with the m echanical
CE NTER of C RT.
5) Press the RECA LL button on the SVC rem ote control to store.
7-2. VERTICAL SIZE ADJUSTMENT
1) Receive the RETM A PATTERN signal.
2) Set the user control AUTO PICTURE to STANDA RD m ode.
3) Press S 6 button on the SVC rem ote control to display M ENU
4) Press CH buttons on the SVC rem ote control to select V SIZE and press
V OL buttons to adjust the
CENTER OF C IRCU M FEREN CE of big circle m ay m eet with the upper and Lower sides of screen.
5) Press the RE CALL button on the S VC rem ote control to store.
7-3. VERTICAL LINEARITY ADJUSTMENT
1) R eceive the RETM A PATTERN signal.
2) S et the user control AU TO PIC TURE to STANDARD m ode.
3) P ress S6 button on the SVC rem ote control to display M ENU
4) P ress CH buttons on the SV C rem ote control to select V LIN,VS CO R
5) A djust VOL buttons to be round center circle of RETM A PATTERN
6) P ress the RECA LL button on the SVC rem ote control to store.
7-4. HORIZONTAL CENTER ADJUSTMENT
1) Receive the RETM A PATTERN signal.
2) Set the user control AUTO PICTURE to S TANDAR D m ode.
3) Press S6 button on the SVC rem ote control to display M ENU
4) Press C H buttons on the SVC rem ote control to select H CEN TER and press
VO L buttons on the
SVC rem ote control to adjust the left and right W ID TH of RETM A PATTERN becom e sym m etrical.
5) Press the REC ALL button on the SVC rem ote control to store.
7-5. HORIZONTAL WIDTH ADJUSTMENT
1) Receive the RE TM A PATTERN signal.
2) Set the user control AUTO PICTURE to STAN DARD m ode.
3) Adjust R406 in order to set the left and right end of RETM A PATTERN on point 5.
ALIGNMENT INSTRUCTIONS
7-6. SIDE PINCUSHION ADJUSTMENT
1) Receive the RETM A PATTERN signal.
2) Set the user control AUTO PICTURE to STAND ARD m ode.
3) Press S11 button on the SVC rem ote control to display M EN U
4) Press CH buttons on the SVC rem ote control to select S G PATTERN 8 and press VO L buttons
on the SVC rem ote control to select SG PATTERN 2 of SG PATTERN 8
5) Adjust R409 in order to set the second line from right side becom e straight.
6) After POW ER OFF/O N readjust HORIZONTA L W IDTH with R406.
7-8. WHITE BALANCE ADJUSTMENT
1) Execute HEAT RUN of the set over 30 m inutes pressing S1 button on the SVC rem ote control .
2) Connect the signal output of w hite balance tester(NITS UKI 2840) to the antenna input of the TV SET. Stick
and fix the SEN SOR to the center position of CRT.
3) Press S8 button of S VC rem ote control and adjust the R.G.B BIAS and G.B DRIVE, with
VOL key, in
order that R.G.B of the High and Low BEA M m ay m eet with the CENTE R LED of each m easuring instrum ent.
4) At this tim e, the m em orized coordinates of the w hite balance tester, unless otherwise specified, use above
coordinates and color tem perature(9600°K 265X295).
5) Press the RECALL button on the SVC rem ote control to store
7-9. SUB-BRIGHT ADJUSTMENT
1) Receive the RE TM A PATTERN signal.
2) Set the user control AUTO PICTURE to STAN DARD m ode.
3) Choose BR IGHTN ESS of M ENU pressing S9 button on the SVC rem ote control .
4) Press VOL button to adjust Sub bright level in order that the gradation pattern m ay serve 18% of
BRIG HTNESS.
5) Press the RECALL button on the SVC rem ote control to store
SVC Remote Control
1) S1 K EY : heat run m ode(O N/O FF)
2) S2 K EY : screen voltage adjust m ode(ON /OFF)
3) S3 K EY : sound test m ode
4) S4 K EY : picture test m ode
5) S5 K EY : m ain IC bus data adjust m ode
- AGC : AGC adjust(0 ~ 63)
- VCO : VCO adjust(0 ~ 127)
- TOF : 3.58M H z BPF select(R F:1, VID EO:0).
- TRAP : 3.58M Hz TRAP O N/O FF(ON :1, OFF:0).
- AFC G : AFC Gain select(norm al:00, 1/3:01, X3 at VBLK:10, OFF:11).
- W PS : W hite Peak Suppressor select(ON:0, O FF:1).
- V AG C : Vertical AG C speed select(norm al:0, X 3:1).
- SW VID EO : VIDEO input select(TV:00, EXT:01, TV Y/C :10, EXT Y /C:11).
- ABL G : ABL Gain select(-0.12V:00, -0.37V:01, -0.64V:10, -0.74:11).
ALIGNMENT INSTRUCTIONS
- ABL S : ABL S tart point select(-0.01V:00, -0.11V:01, -0.3V:10, -0.45V:11).
- 60H : vertical frequency of VID EO BLUE BA CK select.
- R GB : PIP CO NTRAST adjust(0 ~ 63)
- S W 38 : VIDEO variation (O N:0, OFF:1).
6) S6 K EY : geom etry adjust m ode
- V C ENTER : V CEN TER adjust(0 ~ 7)
- V S IZE : V SIZE adjust(0 ~ 63)
- H CENTER : H CE NTER adjust(0 ~ 32)
- V LIN : V ERTICAL LINERITY adjust(0 ~ 15)
- VS COR : V-S CORR ECTIO N adjust(0 ~ 15)
7) S7 K EY : PIP item adjust m ode
- PIP TIN T : PIP TINT adjust(0 ~ 127)
- H POS : P IP HORIZONTAL POSITIO N adjust(0 ~ 255)
- V P OS : PIP V ERTICAL P OSITION adjust(0 ~ 255)
- Y D ELAY : PIP Y DE LAY adjust(0 ~ 7)
- SYNC DELAY : PIP SYN C. DELAY(0 ~ 15)
- VSIDEL : VERTIC AL SYNC . DELAY adjust(INSE T SIGNAL, 0 ~ 32)
- VSPDEL : VERTICAL SYNC. DE LAY adjust(PARENT SIG NAL, 0 ~ 32)
8) S8 K EY : W HITE BALANC E adjust m ode
- G DRIV E : 0 ~ 127
- B D RIVE : 0 ~ 127
- R BIAS : 0 ~ 255
- G BIAS : 0 ~ 255
- B B IAS : 0 ~ 255
9) S9 K EY : DP adjust m ode
- BRIGHT : 0 ~ 63
- CONTR AST : 0 ~ 15
- COLO R : 0 ~ 63
- TIN T : 0 ~ 63
10) S10 KE Y : VCO , AGC Auto adjust, SOUN D adjust
- VC O : VCO Auto adjust
- AG C : AG C Auto adjust
- S M ANU AL : SOU ND adjust m ode
· INPUT LEVEL : SO UND input level adjust(0 ~ 15)
· W IDE BAND : S TEREO SEPAR ATIO N R ATIO (300Hz) adjust(0 ~ 63)
· SPE CTRAL : STE REO SEPARATIO N RATIO (3KHz) adjust(0 ~ 63)
11) S11 KEY : AUTO PICTURE, AUTO SOUND BUS DATA setting m ode
- STAND ARD : C ON 52, BR I 32, SH A 48, CO L32
- SOFT : CON 32, BRI 32, SHA 48, C OL30
- STRON G : CO N 60, BRI 32, SHA 52, COL38
- M USIC : TR EBLE 50, BASS 50
- M OV IE : TREBLE 36, BAS S 48
- TEST PATTERN 8 : TE ST PATTERN(8 M ODE)
12) S12 KE Y : OU T OK
IC DESCRIPTION
I701
- TM P87CM 38N (M -com )
1. P in D escription
PIN NAME FUNCTION REMARK
1 VS S G round
2 TIN T T IN T control output
3 P41(P W M 0) G round
4 P42(P W M 1) G round
5 P43(P W M 2) G round
6 PO W E R - Active High
- Low state at initial condition(RE S E T)
- Toggle Low /H igh w hen pow er key input is detected.
Low P ow er O F F
High P ow er O N
- A utom atically turns to Low when S leep Tim er(count dow n) counts "0"
- Autom atically turns to Low when the O F F TIM E R is set and the clock
(T V ) indicates O F F -TIM E .
- Autom atically turns to H igh when the O N TIM E R is set and the clock
(T V ) indicates O N -T IM E .
- Autom atically turns to Low when A uto P ower O F F.
7 KE Y O UT K EY O U TP U T
8 KE Y O UT K EY O U TP U T
9 KE Y O UT K EY O U TP U T
10 ID Tim er/counter input
11 P51(S I1/S C L1/P W M 9) G round
12 P52(S O 1/S D A1) G round
13 P53(S CK 1/IN T2/T C 1/A IN O ) G round
14 P54(A IN1) G round
15 KE Y IN K EY IN PU T
16 KE Y IN K EY IN PU T
17 OCP O ver C urrent P rotect
18 M A FT A FT input
19 C.V O UT Test video signal output
20 KE Y IN K EY IN PU T
21 VS S G round
22 OSD R R output
23 OSD G G output
24 OSD B B output
25 OSD YS F ocus signal output
26 H SYNC - Sync. Signal for H or_position
- 0 ~ 5V pulse
- Detect input-A ctive Low
IC DESCRIPTION
PIN NAME FUNCTION REMARK
27 V SYNC - Sync. Signal for Vertical position
- 0 ~ 5V pulse
-Detect input-A ctive Low
27 V SYNC - Sync. Signal for Vertical position
- 0 ~ 5V pulse
-Detect input-A ctive Low
28 OSC1 O SD oscillator
29 OSC2
30 GND G round
31 X IN 8M H z X -TAL input/output
32 X OUT
33 RE S E T - SY S T EM R eset(H ardw are Reset) input term inal
- Active Low
34 50/60H z 50/60H z
35 IR IN R EM O T E C O NT R O L signal input term inal
36 M SD Tim er counter input
37 SC L I 2 C bus serial clock input/output
38 SD A I 2 C bus serial data input/output
39 P34(S CL0)/P 57 G round
40 P35(S DA 0)/P 32(IN T 4) G round
41 S M UTE S ound m ute
42 VD D +5V
I501
- TB1238N (IF + VCD P ROCESS OR)
1. P in Description
PIN NA ME FUNCTION REM ARK
1 D e-Em phasis T he term inal to be connected with capacitor for deem phasis.
2 A udio O utput N .C
3 IF V CC (9V ) T he term inal for V cc of P IF circuit.
4 A FT O utput T he term inal for A FT output and Self-adj. O utput.
5 IF G N D T he term inal for G N D of P IF circuit.
6 IF Input T he term inal for IF signal input.
7 IF Input
8 R F AG C T he term inal for R F A G C output (open collector O utput).
9 IF A G C T he term inal to be connected with an IF A G C filter.
10 A P C F ilter T he term inal to be connected with A P C filter for chrom a dem odulation.
11 X tal T he term inal to be connected with a 4.433619M H z Xtal oscillator.
12 Y /C G N D T he term inal for G N D of Y /C circuit.
IC DESCRIPTION
PIN NA ME FUNCTION REM ARK
13 Y s/Ym . T he term inal for sw itching of analog RG B M ode and fast
half tone.
14 A nalog R Input T he term inal for analog R G B signals input.
15 A nalog G Input
16 A nalog B Input
17 R G B V C C (9V ) T he term inal for V cc of R G B circuit (TE X T circuit).
18 R O utput T he term inals for R G B signals output.
19 G O utput
20 B O utput
21 A B CL T he term inal for A B L/A CL control.
22 V. R am p T he term inal to be connected with a capacitor to m ake V R am p signal.
23 V. N F B T he term inal for input of V.saw teeth signal feedback.
24 V. O utput T he term inal for output of vertical drive signal.
25 V. A G C T he term inal to be connected with a capacitor for V. A G C .
26 SCL T he term inal for input of I 2 C bus clock.
27 SDA T he term inal for input/output of I 2 C bus data.
28 H . V C C (9V ) T he term inal for V cc of deflection circuit.
29 S ID/C W O U T T he term inal for PAL/N T S C ID output and S E C AM ID input.
30 F B P Input T he term inal for F B P Input.
31 S Y NC O utput T he term inal for com posite sync. O utput(open collector output).
32 H . O utput T he term inal for output of horizontal drive signal.
33 DEF GND T he term inal for G N D of deflection circuit.
34 S C P O utput N .C
35 Video output T he term inal for V ideo S w itch output.
36 D ig. V D D (5V ) T he term inal for V D D of digital block.
37 S E CA M .B -Y Input N .C
38 S E CA M .R -Y Input
39 Y Input T he term inal for Y input.
40 H . AF C T he term inal to be connected with H . AF C filter.
41 E X T. V ideo/Y T he term inal for input of com posite signal or Y signal from
Input T Vs ext. jack.
42 D ig. G N D T he term inal for G N D of digital block.
43 T V Input T he term inal for input of com posite video signal from P IF Det.
O utput.
44 B LA CK D et T he term inal to be connected with B lack D et. filter.
45 E X T. C Input T he term inal for input of chrom a signal from T V s ext.jack.
46 Y /C V C C (5V ) T he term inal for V cc of Y /C circuit.
47 IF Det. O utput T he term inal for output of com posite video signal and S IF signal detected
in IF circuit.
48 LO O P F ilter T he term inal to be connected with loop filter for IF P LL.
49 VCO GND T he term inal for G N D of V C O and S IF circuit.
IC DESCRIPTION
PIN NA ME FUNCTION REM ARK
49 VCO GND T he term inal for G N D of V C O and S IF circuit.
50 VCO T he term inal to be connected with a tank coil for IF VC O .
51 VCO
52 V C O V C C (9V ) T he term inal for V cc of IF V C O and S IF.
53 Lim iter Input/ T he term inal for S IF signal input and H.curve correction.
H .C orrection
54 R ipple F ilter T he term inal to be connected with a capacitor to stabilize
T he perform ance of S IF injection-lock circuit.
55 E X T A udio Input T he term inal for input of audio signal from T Vs ext.jack.
56 F M DC N F T he term inal for FM D C N egative F eedback and A G C F ilter for L-SE C A M .
IP 02
- TDA8310A(IC PIP)
1. GENE RAL DES CRIPTIO N
The TDA8310A is an alignm ent-free PAL/NTSC color processor for Picture-in-Picture (PIP) applications.
The m ain difference betw een the TDA8310 and the TDA 8310A is that the vision IF am plifier as been om itted in
the TD A8310A . Therefore, the circuit contains an input signal selector, a PA L/NTSC color decoder, horizontal and
vertical synchronization and an RGB/YUV switch.
The input signal selector has 2 CVBS inputs. One of the inputs can be sw itched between C VBS and Y/C and the
circuit can autom atically detect whether the incom ing signal is C VBS or Y/C.
The output signals for the PIP processor are;
Lum inance signal
Color difference signals (U and V)
Horizontal and vertical synchronization pulses.
The RG B/YU V switch can select between two RGB or YUV sources, e.g. between the PIP processor and the SCART
inpu