SIF Car rier 33.4MHz (5 .5MHz:B/G) / 32. 9MHz (6.0MHz:D/ K ) /32. 4MHz (6.5MHz:L ) /40.4MHz (6.5MHz:L’ )
PAL 4.43MHz
SE CAM 4.2 5MH z / 4.40 62 5MHz
NT S C 3.58MHz / 4.43MHz
Au di o 50 0mVr ms( - 4dBs ) , High Impedance ( RCA pin jack )
AV14 BJ8EPS
AV14 BJ8EES
AV 14 BM 8 EN S
AV 14 BM 8 EPS
AV 14 BM 8 EES
De sign & speci fications are su bject to change wi th ou t no tice.
2
No.51999
A
S
A
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■■■■21-pin Euro connector (SCART socket) : AV-1
(P-P= Peak to Peak, S-W= Sync tip to white peak, B-W= Blanking to white peak)
V14BJ8ENS / AV14BM8EN
V14BJ8EPS / AV14BM8EP
V14BJ8EES / AV14BM8EE
Pin No.
1
2
3
4
5
6
7
8
9
10SCL3NC
11G input70 0mV
12SDA3NC
13GND (R)○
14GND (YS)○
15
16
17GND(VIDEO output)○
18
19
20
21
AUDIO R o utput50 0mVr ms( N omina l),
AUDIO R i n put50 0mVrms(Nom i na l),
AUDIO L o utp ut50 0mVrms(Nom i na l),
AUDIO GND○
GND (B)○
AUDIO L input500mVrms(Nominal),
B in pu t
FUNCTON SW
(SLOW SW)
GND (G)○
R / C input
Ys i n put
GND(VIDEO input)
VIDEO output
VIDEO / Y inp ut
COM MON G ND○
Signal DesignationMatching ValueAV-1
Low impedance
High i mpeda nce
Low impedance
High i mpeda nce
70 0mV
Low : 0-3V, High : 8-12V, High
impedance
R : 700mV
C : 300mV
Low : 0 - 0.4, High : 1 - 3V, 75
1V
1V
, 75Ω○
B- W
, 75Ω○
B- W
, 75Ω
B- W
Ω
, 75
P- P
Ω○
(Nega tive goin g sync ), 75 Ω○
P- P
(Nega tive goin g sync ), 75 Ω○
P- P
○
(TV OUT)
○
○
(TV OUT)
○
○
○
(only R)
○
(TV)
[Pin assignmen t]
No.51999
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V14BJ8ENS / AV14BM8ENS
A
A
V14BJ8EPS / AV14BM8EPS
V14BJ8EES / AV14BM8EES
SAFETY PRECAUTIONS
1. The des ign of th is pr od uct con ta in s s p eci al hardware , ma ny
circuit s and components specially for safety pur poses. For
con tinu ed pr ot ection, n o chan ges sh ould b e ma de to the o rig inal
d esi gn un less a uthori zed i n writi n g by th e manu facturer.
Replacement p arts m ust b e ident ic al to thos e used in th e or igin al
ci rcu it s. Se r vic e sh ou ld be performed b y q ua lifie d per sonnel
on ly.
2. Alte rations of t he desig n or cir cuitry of t he pr od ucts s h ould not be
made. Any design alterations or additions will void the
manufact urer 's warr a nt y and w ill f urth er r elieve t he ma nu factu rer
of r esp ons ibility for per sonal inj ury or p roperty dam ag e r esul t in g
th erefr om.
3. Many e lectr i cal an d m ech anica l parts i n th e pr od ucts ha v e
special safety-related characteristics. T hese characteristics are
oft en no t evi den t f r om vi sual i nspecti on n or ca n t he pr o tect ion
aff or de d by th em nece ssar ily b e ob tai n ed b y us ing rep l acemen t
com po ne nts rated f or higher vo ltag e, w att ag e, etc. Rep l acemen t
p arts wh ic h ha ve th ese sp ecial s afet y c h aract er ist ics are
ide ntified in the parts list of S ervic e manua l. El ec tric al
components having su ch features are identified by shading
on the sch e mat ic s an d b y (!!!! ) on the parts list in Service
manual. The us e of a s ub stitute replac ement which do es n ot
h ave the sam e saf ety ch ar act er ist ics as t he r eco mm en de d
replac em ent par t shown i n th e p ar ts lis t of Ser vic e manual m ay
cause shock, fire, or other hazards.
4. Don't shor t between the LIVE s ide ground and ISOLATE D
(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 i s sh ow n by t he LI VE : (") side GND , the
ISO LATE D(NEU TR AL) : (#) side GND an d EA RTH : ($) side
GND. Don't short between the LIVE side GND and
ISO LATE D(NEU TR AL) s ide GN D or EARTH sid e GND an d
n ever m ea sur e w it h a m ea sur i ng a ppa ratus ( osci lloscop e etc.)
th e LI VE sid e GND an d IS OL AT ED(NE UTRAL ) side GND or
EARTH side GND at the same tim e.
If above note will not be kep t, 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 ch ecked or adju s te d ( Se e
ADJUSTMEN T OF B 1 POW E R SUPPL Y).
6. The high vol ta ge app lied t o th e pi cture tu be must c on for m wit h
th at s p eci fi ed in S ervi ce m an ual . E xcessive h i gh volt ag e c a n
cau se an incr e ase i n X- Ray em ission , arc ing and 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 ing occurs , r emove t he AC power
immed i ate l y and de term i ne th e cause b y visua l insp ect ion
(inc orrec t in stall at i on, crac ke d or m elte d high v o lt age harness,
p oor so ld ering, et c.). To mai nt ai n the p r ope r minimu m level of
sof t X- Ray em ission, c omp on en ts in the high v oltag e ci rcui tr y
including t he pict ur e tu be must be t he e xac t r ep lacem e nts or
alternat ives ap prove d b y th e ma nuf act urer of th e c om plet e
product.
7. Do not c heck hi gh vol t age b y draw ing an arc . U se a hi gh volt age
meter or a hig h v ol tag e pr ob e wit h a VTV M. Dischar g e the
picture tube before attempting meter connection, by connecting
a cl ip lead to th e ground f ra me a nd c onn ectin g the oth er end of
the lead through a 10kΩ 2W resi stor to the an od e b utt on .
8. W hen service is r equ ired, ob ser ve th e origi na l lea d dr ess. E xtra
prec aut i on should b e g i ven t o ass ure cor rect l ea d dr ess in th e
high voltag e ci r cui t a r ea. W here a s hor t cir cuit has occu rred,
th ose co mp on ent s tha t i ndica te ev ide nce of ove r hea ti ng should
b e replac e d. A l ways u se the manuf act urer's replac ement
components.
9. Isolation Check
(Safety for Electrical Shock Hazard)
Af ter re- ass emb ling the p r odu ct, al ways per f orm an i solat ion
ch eck on the expo sed metal p ar ts of t he c abinet (ante nn a
ter mina ls, vid eo /au di o input and ou tpu t termi n als, C on tr ol kn obs,
metal cabinet, screwheads, earphone jack, control shafts, etc.)
to be sure the product i s s af e t o o pe r ate with ou t d an ger of
elect rical shoc k.
(1) Di electric Strength Test
The isolation be tween the A C pr ima ry ci rcu i t an d all me tal p ar ts
exp osed t o th e user, p articularly any e xp osed met al part havi ng a
retu rn path to t he chas s is s ho uld withs tan d a v olt age of 3 000 V
AC (r.m.s.) for a period of one sec ond.
(. . . . Withs tan d a voltage of 1 10 0V AC (r.m. s.) to an appli anc e
rate d up to 12 0V , and 3000V AC (r.m.s.) to an ap plian ce rat ed
200V or more, for a period of one second.)
This method of test requires a t est equipment not g enerally found
in the ser vice trad e.
(2) Leakage Current Check
Plug th e A C lin e c ord d ir ect ly into th e A C ou tlet ( d o n ot use a lin e
isolation transf or m er du ring this ch eck.) . U si n g a " Lea kage
Curr ent Tester", me asure the lea kage cu rr e nt f rom each exp osed
metal part of the cabine t, p art icu l arly any e x pos ed me tal p ar t
h avi ng a r e tur n pa th to the ch assis , t o a kn own good earth
ground (wa ter pi p e, e tc.) . An y leaka ge curr en t m ust n ot e x ceed
0.5mA AC (r.m.s.).
However, in tropical ar ea , this must no t exceed 0.2 mA AC
(r.m.s.).
"""" Alternate Check Met ho d
Plug th e A C lin e c ord d ir ect ly into th e A C ou tlet ( d o n ot use a lin e
isolation transfor m er during this che c k.) . U se an AC voltmeter
h avi ng 1 00 0 oh ms pe r volt or m or e sens it i vity in the fo llow ing
manner. Con nec t a 1 50 0Ω 10W res ist or paralle le d b y a 0 .15µF
AC-type capacit or bet we en an expo s ed met al part a nd a kno wn
g ood e arth gro un d (water pi pe , etc.) . M eas ur e th e A C vo lt ag e
acr oss th e res ist or with th e AC v o ltmeter . M ove the res istor
con nec ti on to e ac h exp ose d metal part, p art icul arly a ny exposed
metal part havi n g a retu rn pat h to the chassis , an d m easu r e th e
AC vol tag e ac ross the res ist or. Now, rev erse th e pl u g i n th e AC
ou tlet and r e pe at eac h mea sur em en t. Any vol t ag e me asu red
must no t exc eed 0 .75V AC (r.m.s.). This c orre sponds to 0.5mA
AC (r.m.s.).
Howeve r, in tropical are a, this mu st n ot 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-TYPE
PLACE THIS PROBE
1500 Ω 10W
GOOD EARTH GROUND
ON E A C H EX PO SE D
ME T AL PA R T
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No.51999
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FEATURES
"
This TV set is monaural TV
" The TELETEXT S YSTEM has a built-in WST system.
"