Pilot Communications TV-37 User manual

i
OPERATING INSTRUCTIONS
PILOT RADIO
CANDID T-V
(MODEL TV-37 —AC OPERATION ONLY)
Long Island Ci y 1, N. Y., U.S.A.

OPERATING INSTRUCTIONS
Long Island Ci y 1, N. Y., U.S.A.

“Many of he (consumer) complain s received by he Commission arise
from a emp s o receive elevision s a ions far beyond heir normal range.
Due o he na ure of he frequencies used, elevision recep ion is possible
only if he receiver is loca ed wi hin a rela ively shor radius of he rans
mi ing s a ion. A he presen ime, he maximum range of elevision recep
ion varies from 20 miles o 40 miles, depending on he ype of s a ion
involved and he amoun of power i is presen ly using. In general, a ele
vision s a ion loca ed in a large ci y (a “me ropoli an s a ion”) using full
power can be received up o 40 miles from i s ransmi er. However, if he
me ropoli an s a ion is using less han full power, i s range may no be more
han 20 miles from i s ransmi er. Many “me ropoli an s a ions” a he
presen ime are using emporary low-power facili ies pending receip of
new equipmen which will permi hem o use he full power assigned o
hem. Likewise, a elevision s a ion loca ed in a smaller ci y (a “communi y
s a ion”) which is assigned rela ively low power, canno be received more
han 20 miles from i s ransmi er. Though long-dis ance elevision recep
ion is repor ed on occasion, his is a “freak” condi ion and canno be de
pended upon for regular service."
—Official Statement, Federal Communications
Commission, August 13th, 1948
MANUFACTURER'S NOTICE
The Model TV-37 will ope rate sa isfac orily wi h i s special
indoor an enna in most areas loca ed wi hin he ransmi ing
range of a "metropolitan or communi y s a ion.*9 In o her
areas, due to noise interference or weak signal recep ion*
an outside an enna installation may be necessary.
PILOT RADIO CO RPO RA ION
PILOT RADIO
CANDID T-V MODEL TV-37
PRELIMINARY CONSIDERATIONS
The Candid T-V is an exper ly engineered elevision receiver, capable
of reproducing high defini ion pic ures of fine de ail and brilliance wi h
accompanying sound. Every effor has been made by Pilo Radio o crea e
a small, compac , ligh weigh uni , wi h “large se ” performance s andards,
which can be carried readily from room- o-room, from house- o-house, or
from elevision ci y o elevision ci y. Design, uning and adjus men of con
rols have been radically improved and simplified so ha you will find
enjoymen and enligh enmen in he easy opera ion of he Candid T-V. Wi h
i s smar lea here e carrying case and an enna, he Candid T-V represen s
an ou s anding con ribu ion o he elevision indus ry as he firs “quasi
por able” elevision receiver and he perfec modem raveling companion
for he elevision en husias
POWER SOURCE
This receiver is designed for opera ion on 60 cycle, 105 v. o 120 v. al er
na ing curren (AC) only. Do no a emp o opera e he receiver from any
o her ype of power source. If in doub as o he ype of power available a
he wall ou le , consul your local power company for de ails.
TUNING COVERAGE
The Candid T-V covers all welve elevision broadcas ing channels in
presen use, as alloca ed by he Federal Communica ions Commission. A
quick check of he radio log in your local newspaper will furnish you wi h
comple e informa ion concerning he broadcas schedule and channel number
of he elevision s a ions in your area.
age Three

Frequency in
M e g a cy c le s
Channel
Number
1 (No in use)
2 54 o 60
3 60 o 66
4 66 o 72
5 76 o 82
6 82 o 88
7 174 o 180
8 180 o 186
9 186 o 192
10 192 o 198
11 198 o 204
12 204 o 210
13 210 o 216
OPERATION
FRONT PANEL CONTROLS
Scanning across he fron panel from lef o righ , he con rols and heir
func ions are as follows:
Figure 1.—Fron panel con rols
Off-On Volume—'This con rol serves he dual purpose of power swi ch
and sound volume con rol, similar in opera ion o such con rols on s andard
radio receivers. In he ex reme coun er-clockwise posi ion he power swi ch
and he receiver is a OFF. To urn on he receiver, ro a e his con rol clock
wise un il a click is heard. Con inuing o urn he con rol clockwise increases
he level of he sound accompanying he elevision pic ure.
age Four
Brigh ness—This con rol, as i s name implies, adjus s he brigh ness
(background ligh ing) of he elevision pic ure. I is ac ually he coun erpar
of he one con rol in a s andard radio receiver. As you well know, he adjus 
men of he one con rol in a s andard radio receiver ei her accen ua es or
a enua es he high or low ones o sui he as e of he lis ener, and here is
only one correc se ing which produces so-called “high-fideli y.” In ele
vision, he BRIGHTNESS con rol performs he same func ion for he whi e
and black por ions of he elevision pic ure. Advancing his con rol clock
wise will accen ua e he whi e por ions of he pic ure, and inversely urning
i s coun er-clockwise will darken he black por ions of he pic ure. Ini ially
he correc se ing of he BRIGHTNESS con rol is he one ha produces
a very fain glow on he elevision screen, when no s a ion is uned in. The
signal ransmi ed from he elevision s a ion will hen au oma ically se
he normal and lifelike background level of he elevision scene. The con rol
can be changed fur her, if so desired, o sui your own individual require
men s. However, oo high a se ing of he BRIGHTNESS con rol will resul
in a “washed ou " pic ure and he appearance of whi e racer lines across he
screen (Refer o Fig. 4). The se ing of he BRIGHTNESS con rol should
no be affec ed by a change in room illumina ion.
Tuning-High Low—This se of con rols consis s of a double knob wi h
correla ed func ions. The lhrger rear knob (TUNING) is he elevision
s a ion selec or, similar in opera ion o he con inuous uning knob on a
s andard radio receiver. This uning con rol can be ro a ed con inuously
ei her clockwise or coun er-clockwise, and is synchronized wi h he channel
dial scale loca ed below he pic ure ube. The smaller fron knob (HIGH
LOW) is a band swi ch wi h wo posi ions: LOW (clockwise) covering
channels 2 hrough 6, designa ed by he whi e por ion of he dial scale; and
HIGH (coun er-clockwise) covering Channels 7 hrough 13, designa ed by
he black por ion of he dial scale.
Con ras —This con rol adjus s he shading of he elevision pic ure and
permi s you o choose a pleasing range of shades from in ense black o clear
whi e. In addi ion, he CONTRAST con rol is ac ually he exac coun erpar
in elevision of he volume con rol in a s andard radio receiver, since i
regula es he s reng h of he elevision signal received which resul s in
differen shadings of he pic ure. By ro a ing his knob clockwise, he
s reng h of he elevision pic ure is in ensified, and he dark por ions of he
pic ure will appear blacker and he brigh ones whi er. Since he CON
TRAST con rol affec s in par he shading of he elevision pic ure, i should
be adjus ed o correspond wi h he se ing of he BRIGHTNESS con rol.
Too high a se ing of he CONTRAST con rol, in par icular, should be
avoided in order o preven dis or ion, ins abili y and a loss in grada ion
of shading from deep black o full whi e. A li le prac ice in a aining a good
balance be ween se ings of he BRIGH NESS and CON RAS con rols
will enable you o ob ain quickly he ype of pic ure presen a ion mos pleas
ing o your individual as e. (Refer o Figs. 2, 3 and 4).
age Five

INITIAL OPERATING PROCEDURE
The Candid T-V comes comple e wi h pic ure ube and is ready for
immedia e opera ion upon purchase. Before opera ing he receiver for he
firs ime, unwrap he Ha wire “dipole” an enna which you received wi h
your uni , and connec he free win leads of he an enna o he wo screw
erminals loca ed a he rear of he receiver (Refer o Fig. 6).
Ex end he an enna o i s full leng h and using humb acks, sco ch ape,
s raigh pins or similar fas eners, a ach he cross band of he an enna as
high as possible near a window, preferably one which faces direc ly owards
he elevision broadcas ing ower. For bes resul s keep he power line cord
separa e and away from he an enna leads. The indoor fla wire an enna
has been designed for sa isfac ory recep ion of mos elevision signals, par
icularly on he low band (channels 2 hrough 6). For fur her uses of his
an enna and descrip ions of o her ypes of an ennas, refer o he chap er -
below ANTENNA INSTALLATIONS.
To une in he receiver for he firs ime, plug he power cord in o a wall
socke wi h sui able AC source.
1. Turn he OFF-ON VOLUME swi ch clockwise (righ ) un ił a click
is heard. Allow 15 o 20 seconds for he receiver o warm up.
2. Turn bo h he BRIGHTNESS and CONTRAST con rol o he
ex reme coun er-clockwise posi ion (lef ).
3. De ermine from your local newspaper he channel number of he
elevision s a ion in your area whose programs you wish o receive.
4. Se he HIGH LOW swi ch o he proper band covering he channel
number of your elevision s a ion (LOW—Channels 2 hrough 6;
HIGH—Channels 7 hrough 13).
5. Ro a e he TUNING con rol un il he proper channel number
appears approxima ely in he cen er of he dial window loca ed
below he pic ure screen.
6. Turn up he BRIGHTNESS con rol clockwise (righ ) un il he
screen glows fain ly.
7. Then, urn up he CONTRAST con rol clockwise (righ ) un il he
pic ure de ail begins o show i self.
8. Slowly rotate the TUNING control clockwise (right) through the
television channel until the picture just begins to lade out slightly.
A his poin you will secure he sharpes and cleares pic ure. Sligh
readjus men s of he CONTRAST and BRIGHTNESS con rols
may be required o secure a pic ure which bes sui s your individual
as e. I mus be poin ed ou ha he sound accompanying he ele
vision pic ure may con ain a “buzz” if ei her he pic ure is improperly
uned o or if he CONTRAST con rol has been se oo high. This
Six
"buzz” does no indica e any defec in your elevision receiver. I
can generally be elimina ed by proper uning and proper adjus men
of he CONTRAST con rol.
9. Turn up he volume con rol clockwise (righ ) o he level of sound
desired.
10. To change from one television s a ion to another within the same
band, merely rotate the tuning con rol to the desired channel num
ber, and re-adjust the BRIGHTNESS and CON RAS controls,
if required,
11. To shu he receiver off, urn he OFF-ON VOLUME con rol coun
er-clockwise (lef ) un il a click is heard.
12 Wi h he con rols se as described above, i should no be necessary
o repeat he en ire tuning procedure each ime he receiver is turned
on. Only a sligh readjustment of BRIGHTNESS and CON RAS
should be required for each individual s a ion.
No e: If any pic ure faul s are experienced during ini ial opera ion,
such as ver ical or horizon al motion, improper cen ering, blurred
or ou -of-focus, refer o chap er below on opera ion of rear cabine
con rols.
OPERATING TECHNIQUE
The following ins ruc ions and illus ra ions indica e he mos common
picture effec s or “faul s” which may occur during uning, and how hey are
overcome by he proper adjus men of the fron panel and rear cabine
con rols.
FRONT PANEL CONTROLS
CO R R E C P IC U RE
A es pa ern of his ype is usu
ally broadcas before a elevision
program o provide you wi h a
means of checking he adjus men
of your receiver. When he receiver
is correc ly adjus ed, he pa ern
will be clear and s eady and five
dis inc shades (black, dark gray,
medium gray, ligh gray and whi e)
will be observed a he cen er or
ou er rim of he pa ern.
Figure 2,
Page Seven

TOO MUCH CONTRAST PIC U R E OO L IG H
Figure 3.
To make he pic ure ligh er and
show less con ras , urn he CON
TRAST con rol coun er-clockwise,
A sligh readjus men of he
BRIGHTNESS con rol may be re
quired.
SOUND BARS
Figure 5,
Figure 4.
To bring up he pic ure in ensil
and ob ain darker reproduc ion i
he black lines, urn he BRIGHT
NESS con rol coun er-clockwise.
A sligh readjus men of h(
CONTRAST con rol may be re
quired.
Dis or ed sound may be ac
companied by “sound bars” appear
ing on he screen. The bars gen
erally flicker across he pic ure in
s ep wi h he sound, and can be eli
mina ed by carefully adjus ing he
TUNING con rol.
REAR CABINET CONTROLS
The five con rol adjus men s (screw ype) loca ed a he rear of he
receiver have been se a he fac ory.
Page Eight
FIGURE 6.—Rear Cabine Con rol*
However, heir se ings are subjec o acciden al change wi h handling,
and may have o be checked and readjus ed a he ime of ini ial use of he
receiver.
Scanning from lef o righ , as you face he rear of he receiver, he rear
cabine con rols are: HORIZONTAL HOLD, VERTICAL HOLD, FOCUS,
HORIZONTAL CENTER, VERTICAL CENTER.
HORIZONTAL HOLD MISADJUSTED
Figure 7. Figure 8.
The HORIZONTAL HOLD con rol should require li le a en ion
unless dis urbed. The pic ure will usually pull i self in o posi ion au o
ma ically in less han a minu e af er he se is urned on, and should s ay
in synchronism for he dura ion of use. However, if he HORIZONTAL
HOLD con rol is ou of adjus men , several overlapping images or even a
series of slan ing lines will appear on he screen. In addi ion, in very noisy
loca ions, he pic ure may end o “ear” due o he excessive noise (Refer
o Fig. 8). To correc , urn he CONTRAST con rol coun er-clockwise un il
he pic ure is barely percep ible. Then urn he HORIZONTAL HOLD con
rol fully coun er-clockwise. Slowly advance he HORIZONTAL HOLD
con rol clockwise un il he pic ure s ar s o “e a r”, and hen urn he con rol
back coun er-clockwise approxima ely one eigh h of a urn a which posi ion
you will find he mos s able pic ure.
When he VERTICAL HOLD
con rol is ou of adjus men , he
pic ure appears o be moving ei her
up or down on he screen. To cor
rec , urn he CONTRAST con rol
coun er-clockwise un il he pic ure
is barely percep ible. Turn he
VERTICAL HOLD con rol clock
wise un il he pic ure jus s ar s o
roll upwards. Then urn back his
con rol coun er-clockwise approxi
ma ely one eigh h of a urn a which
posi ion you will secure he mos
s able, single s a ionary pic ure.
VERTICAL HOLD MISADJUSTED
age Nine

FOCUSING MISADJUSTED
A poorly focused or blurred pic
ure can be correc ed by properly
adjus ing he FOCUS con rol. The
con rol posi ion ha produces he
cleares pic ure is he correc one.
Figure 10.
HORIZON AL CEN ERIN G
M ISA DJU S ED V E R IC A L CEN ERIN G
M IS A DJU S ED
Figure 11- Figure 12.
A pic ure which is ou of posi ion horizon ally or ver ically, and par ially
cu off by he frame of he viewing screen, may be recen ered by properly
adjus ing he HORIZONTAL or VERTICAL cen er con rols. The ear h's
magne ic field has a defini e influence on he cen ering of he elevision
pic ure on he receiver screen. Therefore, you may find ha recen ering is
necessary af er he receiver has been moved from i s posi ion o ano her
posi ion, o ano her room, or o ano her house.
age Ten
INTERFERENCE
While every known means of suppressing in erference has been in
corpora ed in he Candid T-V, we would like o call your a en ion o he
fac ha in elevision recep ion here are problems of “man-made” in er
ference, s a ic, reflec ion and loca ion, all of which affec visually he repro
duc ion of he pic ure.
In erference may be caused by flashing or neon signs, elec ric razors,
au omobile igni ion sys ems and by elec rical machines such as mo ors in
eleva ors, fans, refrigera ors and rolley cars. Such in erference is ap o
cause spo s in he pic ure or up and down movemen . Medical shor wave
dia hermy equipmen may cause speckled or herring-bone bands across he
pic ure. Aircraf passing in he vicini y may cause fluc ua ion in pic ure
brigh ness and possibly in sound volume. Reflec ions from buildings, s eel
s ruc ures and moun ains may cause a double image on he screen. In er
ference from nearby shor wave radio s a ions or from poorly shielded re
ceiving equipmen may cause diagonal s reaking across he pic ure. Areas
far removed from he elevision broadcas ing s a ion may be hampered by
weak signal s reng h causing a “snow” effec in he pic ure.
All hese problems mus be aken in o considera ion and properly evalu
a ed by you. In some ins ances reloca ion of he an enna or use of a more
improved an enna sys em may elimina e some of he in erference. I is of en
very difficul , however, and some imes impossible, o preven his in er
ference in some ins alla ions.
The following illus ra ions show effec s of he ype caused by local
in erference.
IGNITION INTERFERENCE
Figure 13.
Au omobiles in he vicini y are
ap o cause speckles on he pic ure
or, when heir effec is severe, may
cause ver ical pic ure movemen .
Elec rical mo or-driven appliances
cause similar effec s.
age Eleven

REFLECTIONS
Figure 14.
Mul iple images, some imes
known as echoes or ghos s, are
caused by signals arriving a he
receiver bo h direc and by o her
pa hs, including reflec ion from a
building, s eel s ruc ure or moun
ain. These “ghos s” may be eli
mina ed by ei her reloca ing or re
orien ing he elevision receiver
an enna.
WEAK DIATHERMY
INTERFERENCE
Figure 15.
STRONG DIATHERMY
INTERFERENCE
Figure 16.
Elec rically opera ed medical equipmen , such as dia hermy appara us
will produce a herring-bone pa ern across he pic ure. When severe, due o
close proximi y, i s effec is very marked and may even obli era e par of
he pic ure.
age Twelve
R-F INTERFERENCE
Transmi ing and receiving shor 
wave radio equipmen may cause
in erference in he pic ure in he
form of moving ripples.
Figure 17.
WEAK SIGNAL
When your ins alla ion is near
he limi of he area served by he
ransmi ing s a ion, he pic ure
may no hold s eady on he screen.
This is due o lack of signal s reng h
from he ransmi er.
Figure 18.
ate Thirteen

ANTENNA INSTALLATIONS
As we have explained previously in he chap er on INITIAL OPER
ATING PROCEDURE, a special indoor, fla wire "dipole” is supplied wi h
your Candid T-V. In mos areas wi hin a elevision ci y, his elemen al
an enna sys em should be sufficien for sa isfac ory recep ion due o he
improved sensi ivi y of he Candid T-V. We sugges ha you experimen
wi h he use of his an enna, and reloca e i , if necessary, from place o place
un il you have de ermined he bes passible loca ion. Since he fla wire
“dipole” was designed for bes “over-all” recep ion of mos elevision s a
ions in general, you may find ha i s performance is no en irely sa isfac ory
for elevision s a ions in he upper end of he high band (channels 7 hrough
13). This condi ion can be rec ified by shor ening he op “arms" of he
an enna. In weak signal areas, i will be easier o receive low band ra her
han high band elevision s a ions.
I may be necessary, however, o use a more improved an enna sys em,
if you are si ua ed in a difficul recep ion area which experiences in erference
as described in Figures 14 o 18, or in a loca ion dis an from he elevision
broadcas ing s a ion. The companion carrying case o he Candid T-V, which
can be purchased from your Pilo Radio dealer, is equipped wi h a elescopic,
s eel “all channel” an enna ha will add immeasurable improvemen o ele
vision recep ion. Comple e informa ion on he use of his an enna is supplied
wi h he carrying case.
Your au horized Pilo Radio dealer will be mos willing o advise you
in he choice and ins alla ion of proper an enna of a more permanen na ure.
CARE OF THE RECEIVER
Use only a clean dry clo h o clean he window in fron of he pic ure
ube. Cer ain cleaning solu ions will fog he clear plas ic ma erial from which
his window is made.
The receiver is provided wi h adequa e ven ila ion holes in he op and
sides of he cabine . Care should be aken no o allow hese holes o be
covered or ven ila ion impeded in any way.
SERVICE
Do not remove the receiver from its cabinet under any condition. In he
even ha he ubes do no ligh up a all, check carefully and make cer ain
ha he INTERLOCK plug a he rear of he receiver is firmly se in i s
F o u rth ft
recep acle (Refer o Fig. 6). If any rouble is experienced which canno be
correc ed by following he ins ruc ions con ained in his bookle , please con
ac he Pilo Radio dealer from whom he se was purchased. The Candid
T-V and o her Pilo Radio produc s are sold only hrough carefully selec ed
dealers au horized by he Pilo Radio Corpora ion—dealers of recognized
in egri y in heir respec ive communi ies wi h a repu a ion for es ablishing
and main aining cus omer sa isfac ion and good will Your service problems
and inquiries will receive promp a en ion by an au horized Pilo Radio
dealer.
age Fittestn