JVC RC-770 L - Table of Contents; Specifications; Specificaationss Ss Gosietiewchecpee Db Ih Aoeeed Wek et Ol Dae Ee Atada Cee Degense Atin Cet Ocenasae Sted Tbe Evade Bec Cated Ede Vosesnn Sede Seagieensacasn Aad

RC-770 L/LB/LD/LS |
2
Contents
Page
SpeCifiCAatiONSs ss gosietiewchecpee db ih aoeeed Wek et ol dae ee atada cee Degense atin cet ocenasae sted tbe evade bec cated ede vosesnn sede seagieensacasn aad 2
Safety Precautions... roi. cscicasseax acai iondegeadt teceuiie deena nevaaios eetedn selene vaaad es vedeteseenee etn yada voles der etic: velar bseeeerayeve 3
Locations OF COntrOls: niczsccicsnceide cd: veseaca dave de ae a5ucescucsened ghd ogc ac ced deeds sbeauliveasdedseeaceretedesscgenne dash cieeddeteadewese 3
Locations of. Main Parts (5 2. eoscddsvteencesovdd nas evadsdeeneeueuaas cee kcied cove vavadoqeuns cv veaarcesttatenersdseniocaeaskestounbedtvess 4
How to Engage: Dial: Cord isi csi 5.2055. Sia ctsce ag cece ced cots dnc wetaecaee’ Sedat ccetd dee dage odes codecaead obdetsoreesdddieatwadpadetes hens 4
Removal.of the Main: Parts i ice iccseec ics date eececk veicsusviiies aun eesdeiia a va cadepeeles'Ueeasjeaediendeleans veeguauvas ceveestove yong andes 5
Adjustment of Cassette Mechanism ...........ccccccceccecceeeeseseeeen sees ne nenceee en ee eens eens ere nena ne eeesn ogee eterna ee ee se naages 7
Tuner AN GNMONE foc. cteetecwadertveteetemececcciedattescetasedcseesap veasuasutsusebteduassssitddeysenleseecsiseyeuaer sete edsteua sd etee gees aa 8
Adjustment of Cassette Recorder Amplifier .............ccsccccecsseeeseeeeeeceeeeeseeneeesneeeneneeaeeeeeseseeeeetetette sant nes 11
Block DiaQraim: vice doce Seeeec iede ds oa evpescinc ete weidetie dacuiee Sueete dane essed unVerbaserndsieedse cae btinaaadeulaedespanesei gece ound de cileeds 11
Standard Schematic Diagram of RC-7 70L/LB ((Tuner Circuit) «2.2.2.2... 2.0 cece cece eect ee cece eee e eee anata eeneee eae 12
Standard Schematic Diagram of RC-7 7OLD/LS (Tuner Circuit) ............ 0... c cece eee e cece ee ee eens ee ee ea sneeenenan ae 13
Standard Schematic Diagram of RC-770L/LB (Amplifier Circuit) .............cccccceeeee eee ee ee ne nese ee ee ene eeeene te nneeae 14
Standard Schematic Diagram of RC-7 7OLD/LS (Amplifier Circuit) ............ccccccccceeeee eee eees eens cent neeneeneeeeeaeaee 15
Wiririg. Connections ccisdesi edits 2éenciv ad coc needecerseapaneua meted ected gd tescuntce di acue anes sas eeeud ooinde Geka eas Suk cen pane ws eusaneeonews 16
Amplifier P.W. Board Parts and Parts List ............cccececeeeeeec ne ee eee ee neon seen esas sesee essa tensa eet eeeeeteseteeeaeeneneenens 17
Amplifier P.W., Boatd Parts List ..c0is ies osceescice vane cit cave voincetetle cents ee de dieee since sie ceeneils Deedee chee swigeatbeceeles sewed eee 17
Other P.W: Boat Parts LISt: ss .cccecissesvecisecsccscsusccsseedaccuvnseudanstecee sve seve daevednerhed ded eecegacedegathu save fe esetanges 18
Tuner P.W. Board Parts: and Parts List soci ccccciccccieceve secs scuetesaeae cess sig veovters sees series clea ssiieeaeeees Sones vassddensneed ees 19
Tuner P.W. Board Parts List (RC-7 7OL/LB) 20... ....c cece ec cece cece rece eee ene E EERO EEE ESE EO EE EEE EEA EEE EE Eee 19
Enclosure Assembly and Electrical Parts List ................ 0. cc eee e cece e eee e ee eee eter eee e nee n teeta ena ene n etna eneeen eae 20
Enclosure Assembly and Electrical Parts ................cccccecene ence ee eee eee ee ee ee nee eee n anne eee etna ene e netstat neta ene ay aes 21
Mechanism Component Parts. :ic2c5...25200¢scc hie cdes. fb echiet ce Mapes eave ani sen adacedewnnenudesscbva ceteSeceeetes Sie ameabeiieas 22
Mechanism Component Parts List .............ccccceceeecececenene eter ee ee set eeeeet ene eee eee ee en en PPA EGE ERC EOE SHEE EE EE EEE EEI EE 23
PACKING 5. s32< catiiedsces toes ckeit candace sedecuecsaysasane coudehieahan de Sedhadeete oomagamaedl cagbeteeecte tise dass bentetinoasetuaacnenaides 25
Packing Material‘ Parts Lists: o.oo. sscicven coe ecteecedecncutataccctes fy tueian sadde heseimaains ev nape dee steate spate cewese se oad etenear wie 25
ACCOSSOFIES: vais jeiepncdant eouwe theta coved steed robe Wee Tost oe adel boca boned Ge rence ticuded ada Coeds bone bacabaacs adde end Back Cover
Specifications
Speakers > 12 cm (3.2 Q)x2, 2 cmx2 Amplifier section
Tuner section Power output
Frequency ranges : FM 88—108 MHz
MW 540—1600 kHz Input jacks
LW 150—350 kHz
SW 6—18 MHz Output jacks
Antennas : Telescopic antenna for FM & SW Power supply
Ferrite core antenna for MW & LW
Tape recorder section
: Max. 6 W (3 W+3 W)at 3.2 2
2.2 W per channel at 10% THD
: Mic x 2 (1 mV,—60 dBY,
200 ~ 2 kQ)
: Headphone x 1
: DC 9 V (6 ‘‘R20” batteries)
Car battery (DC 9 V)
AC 240/220/110 V, 50/60 Hz
Track system : 4-Track 2-Channel stereo Power consumption: 10 W (RC-770LB), 9 W (RC-
Frequency response: 80—12,000 Hz 770L/LD)
Wow & flutter : 0.19% (WRMS) Dimensions : 520(W) x 239(H) x 136(D) mm
S/N ratio : 54 dB (Normal tape) (20-1/2” x 9-1/2" x 5-3/8”)
Rewind time : Approx. 120 sec. (C-60 cassette) Weight : Approx. 3.2 kg (7.0 lbs)
Fast forward time : Approx. 120 sec. (C-60 cassette) (without batteries)
Head : Permalloy Head for Playback/
Recording 2-Gap permalloy Head Design and specifications subject to change without notice.
for erasure
Motor : Electronic DC motor x 1
(No. 1531)