Alpine 7980M User manual

MUMALPINE
SERVICE MANUAL
FM/MW/LW/SDK In-Dash CD Changer
3D Snuttle | olis(e
DIGITAL AUDIO
@ This model is component system unit of compact disc changer
and tuner unit.
@ For the CD deck mechanism parts (DS24A010) of this model,
refer to the Service Manual e DS Series (68P50238W01).
MONO TUNE 3230 sruactiea COMPACT DISC CHANGER
| CESCAN T_oisF >
a
ejo((=) ||| MUNAPINE
8x OS 20-BIT
ie Geek Pea

7980M
Contents
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PRECAUTIONS: cssesnecas teaaststetascectetapec tet ateeceasesetees dovtebecsesnagevecesusencesudosesgheewasdhaaatetacsanapdedbevusa cous sath duossevaics deveaves deve cteuusecasavevsdenurevonesenvsd 510 6
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Controls and! IMGICALOIS messin. sceceecbeesuipetins beds stvnsandunednansovasecccissnesiegnduncucdcdcouacaucenevssosbaconsonioca siesuaccedecauesussusebibiiewe eueuevens cuverveneetacocss cobesOn ole 7to8
COMMOCHIONS a5: 23.5. A scsaacecatecesecestascessestesceypuscessacelsbetgs etunseyiss eeedeupabags raeususessesderagansutnca’doocsanacsetiestu ste sdedast sles sdéaths dae dheadieanaveneuciweientiees 7to9
OPEL ALON eseecctcenncesecciesccccavecstscn cansslesds ge snesyeuwenvevcs sieves vuedaewievedeussn ven vesveueve cous saUeaveeseu s5ua bucod aindseagodessegboye casdedsancsesigead sacs sentuveseideeceenesiees 9 to 16
ACUSIMENtE PrOCODUROS ois fs. 22h:<Gcaidecscasa Sbcatceotecehis abewsassdveccnesdededtagesGavgeduesnnunassasvsdee asks usaedeasaueosvouesdceseoiuoed sbavdh avecsesdoiacia eeuesdeuazreevtnad 17 to 22
Adjustment EOCations:siciisscces eek Seadees cesses cceshsctsaciaSitekedenaues ccd ccrvee dicted dee ceacasseaeanse ovesuestasuanal ster terueesedrdbaacasasaressveseetseenedictontieee aie 23 to 24
Electrical Inspection Specifications... ee seeessssesecseeecsccsneesseeesnesenensscasseceescssccescesecsscessssensesessssesesecaesssausaescstsnssevessessseesecssseseseavacs 25 to 26
Packing ASSOMbly Parts: LISt:,, <esicsndsxesticccsncentiesvatvdete sonavttonsevdpancuvaccydcentundis cobavndes sate oatsasasds auascaceveuitaysubevseeaausceansoueyssususasuneivucald goavenobeveiices 27
Packing Method: View 3 c.c.istesvesccecsieeecceccdt Seacestvecesbewaslaven cic cedecacdagdiede dese Aiascoaassubcbecacesbonad testes udantay tusbbuiavicssaaeieeteadeveusestevsideensiatecouenweneeale 27
Changer Unit
Disassembly INStructions:s -.scitscsdese.ceccccssvsaceciiecuscesoadslasesasieussesesoascucvelaceesbbassgeste vousdedieucesedons'stdstelacde $eivteusteorsuecodussdatenesusncati esthue¥eaives 30 to 31
Description: OF IC Terminals ceaccssetcousicstcsoxovacsit antearcvacsncd tativataceiscst unvvay beatendeuvcaeaseseasveaisdvccsvatesbeateaediieazavs.dheteedssisnssedvergoanscnieeueanes 32 to 33
LGD: DIS DNA 5 22S cicsaah Svaceae donot adeuessdanabavstesdeandeyseetubeai ye jdsatinaataney-cenveydsensibiguesesnuaededena diesen evans ye deoucotedubsvatiaabecbagcd svcd socestaseasntenae Seuaaeunuaeed 34
BIOCK* Dig rem icdsicieeseseteesatcputeawitecascsteswicesesnentesuercouccox ce secevaeveasseps cuss ves: kasyets sel cxibes doc ceegevelasdespuehaabacdsalegncevssteatsc dovvdeebadiatatuaetocns 35 to 36
Parts Layout on P. C. Boards and Wiring Diagram (1/2) 37 to 39
Parts Layout on P. C. Boards and Wiring Diagram (2/2) 40 to 42
SCheMatic Diagrarin-(1/2).!:escssvesvesesncesecevsvcsesssesececsecseewaoenseseatucszassccluigsvasnseused sv’ aessuash sasess cach toshaentwnesdeardetasnaondssuchesteisuatendatarme ies 43 to 45
Schematic: Diagram: (2/2) sis coc scocsuics cateahchedas svete luted cbiasay atest ceaze Saursasuetts Seva Vist dovadiasatava cecavaanvesbedecsaeehuvacsceswade said eessehashackintanseiiae caters 46 to 48
Electrical: Parts: LiSts 3 c..vssssscassietsencsuthsonpssessschendansoscaixaedvesesoieeetwutadesespatuacelsea sactchbavteas ctuctatestvndalelwavvesucterecbeshssvalivasdguvetaitdetevalde davties 49 to 55
Cabinet Assembly Parts List’. 2:52.50 25 Ses pctcteeoess neo ctioene dete datas desdakel el sdeaasevaa A fivies eaiehadadesaastadaloveseveteadeleaiGessbohaascees dail ba auaieutens 56
Exploded View: (Chamoer Unit): cicci gos cciyndet St ceed che eijenk to caten ddan evened lies idacelovtsdayii sl ealield able besinduncdsdesbeusbedladivasscvedoeiatuocevsngedseoiveus sedans 57 to 58
Semi= Conductor Lead: Identifications: sviccsisscsassersiesseshertestersceteesseadserascosieaierssisdssivessuneevedscetaaeseudarsentstvsseveetssiasesesiveoeuieasesieedivade weuess 59 to 65
Tuner Unit
Description ot: IC TErnimal) ccscsases cecccactaseecaneccadastevies edevesbovesdosbenseutadseavinocabaisnsgeiesivedasvhiaschctuassaesesvitiiansaccantanivsceuteugsacodeucesnvearucdieueedt 68 to 70
FUME SCHEMALUGC: Diagram isiscresiscbeesccsvecsdariecd hcsecclucesss Ueawsevshaadecevdevdestelvscveeutcnssdcseased socdeczen deivualsoasdas cecchseucaucdueuvesuedueadevucdsusvedsad cosvlenseuornsye 71
CabinebAssembly Parts List: vsicd cassie cansscscescliecavsteateseaadohi ovveGoscctdeadcaszasedcby'on cos edtush teusdlusduat dade ivaduscdvcudbazaais idsandetensasstsiatssdsseaiueioelsvees siuneee 72
Exploded: View: (Tumer-UnIt) sssusscjtisaaseeieas iabssacstvaisecteesiacvscdasesnctcoanesesgestget seudetsedeatationai dedeseadaveus oddagisanssavisanerssetesesebdatioy atlciestetinoeaedes 73 to 74
BOCK: DIAGT ANN: 5. cssese eens scsatine seis Seesca cased soanti eat debuoncapveuscass haudcanQaa'e ensue duadueccbssuuedtidensab tense sususs dee Wevesiedaser suis ebssisataisaandider sar dertas cavesrndboasied 75 to 76
Parts Layout on P. C. Boards and Wiring Diagram 77 to 80
Schematic Diagram (1.72) -escvesscvestaedaseds coasesd sees abe oVaes cute sansatesncavela Couto ceasdckagouzeveca ccawsacrvcsiaiedacovcesacsesudad seecadasvalevadstacddasivine eloiiobatolaeeaeee 81 to 83
SCHEeMatic: Diagram. (2/2) vewiaices scccece cts secsetowskctecbes ov tae swe tassve vec veasaede ndash gauedatsds da dassaadev Sade adiveeaucbdesbasvesosladzeaenssdecseiiians sevedgeeoouaenees 84 to 86
Electrical: Parts: List: ccccscscosecsaseeucosvsuvecacedd cguseccavetsestaidineszcsenasessdicedie ducal dovbeaesaudatdaveleavawcdgivboudetecenss seaecvuadtesssidicestetasevosh. tion havacner 87 to 92
Semi:=Conductor Lead Identifications icctccciseviecscdacocesdessattvsiss3 tases suedhentecbsacevetsteadhadoalGesueid ens adlvsouealigssaccusterdeeetovasediabsolotvneateuagaesiis 93 to 96
Spare Schematic Diagram Inserted.

Specifications
<CD SECTION>
7980M
SYStOM ches weray le ROR RE t NOt thn ROS ticle celta 28 ni 2 Ie NBT E SN Saale covet Nope h tet 1! Optical (Compact Disc system)
Quantizing: BitiNUMBER” co... cows As oay regs ¢ Ug de Tae haw Poa ee mamentad > Sea age Ng gypteeneiee rae 20 bit Liner system
Channelse.2, avo Gt vee aie papas bas uae paket ds alcheh hee DRE Ye whens Bae 8 bei bas Gbammtnng eaateaan oy 2Channels
Channel Balance: (1KHZ) 22.06 ocean ohne oe eee ankle dee eee Pee aah bok nee eeae teak niin Sed 0+3dB
Distortion GKHZ)) ccen ews aioe saad aida GA Pea weave ees bog again we PASE Res he o as shan Paes OS bona 0.05%
Frequency Response (Ref. 1KHZ) .. 2... e een ee eee cence eect eect en eeaee 17Hz:0+3dB
127Hz:0+2dB
10.007kHz : 0 + 2dB
19.997kHz: 0+ 4dB
SN, Ratios (RAZ). vance vetted At eld Bled reat tal Siete 5 vate ote ta eed alte teen SMa. fiael Sas 2 Ge 0 a 85dB
Separation i(kHZ) s...5e5 cosadee chat d abt ore uae dea ech ie gte deheeats alas Ana eis Shae aE Nine oho ce gh NY Res alele 70dB
Noise ‘bevel (at Voliime: Mui): ied Abc eS i need i a er A NE nn Nl O.1mV
Currents (atiPRAY): 24 cee Eee de Sheba ode dead de eae nantes sea Meek oe eee AG Acct tad dit gl dal ae 1.2A
De=Emphasis: (Ref: TkHZ). ces 2senn vai en Sea eeveet eons doo Sa Meas wee cade gee ns oRRS DASA 4kHz :-20+3dB
16kHz : -20 + 3dB
<FM SECTION>
Intermediate Frequency, uc oa ee ech ALS PE Se Bee hs k Pie as anes dk LR Re bh naabaie ties 10.7 £0.1MHz
FFEQUENCY” RANGE + -o.sc dis cedure ep am caters cei acine-dra-ere med pereards s Heed Gis EY Gg oars Haroon de ere pte Meee 87.5~108MHz
Usable Sensitivity (Mono, 98.1MHz, 30dB S/N) ...... aPisdletgctine ste s Ses en da As sald aaihaa An ann gronaeeet tatetase 17.20dBf
-10dB Limiting Sensitivity (Mono, 98.1MHZ) 2.2.0.0... ccc cc e ene b teen e ete e een eee 17.2 + 5dBf
S/N. Ratio (Stereo 98s.MHZ). sivas onesie. te Seieeda Set 5 8 os ees Sebi Scala’. slaabeh gaat ad ao aedaaad eee ee edd 48dB
Image: Rejection=(106:1MAZ) si.cece-sccnencase wees cues Guile anand Sasi 6-9 MARR AEC AES Sigh quod ig viaaianad’e alets dd ala ee oh we 40dB
IE Rejection: (90SIMHZ)! Scag sg. ctr tne tel Salegiess taaselsintas go uae bg wlbie us wl Sisie ae PRICE aoe Renee wo CLEA ENE od 60dB
Distortion (Input. TMV; 9B1MHZ). oc. occ ean cb pee et bee te REE eine deeb ye ENS beta GuGediGa dea db ade bed Aedan 1%
Frequency Response (98.1MHz, Ref. 400HZ) .......0 2.00. e ccc ne ec cece teens 100Hz:0+3dB
10kHz : -12 + 3dB
Stereo: Separation KHZ)is 320 flee sna leeodidedne cased oan yeas eet oead kad opalsene dale uate ten dltled Abele hd 25dB
<MW SECTION>
Intermediate Frequency xii. ore oi rete cea og bind Garhi nenatianctoeieng os 24 Serge que aremtsis eat peared 450kHz
FreQUeHiGy RANGE) a tunics pase oe ete le alte gale a teurglh sercoelnans Patent de cdg oy ma een eR SN eE SS tS 531~1,602kHz
Sensitivity: QOAB S/N; GOQKHZ) os oes cnie see ceace: revere once wsarelotbndety Styne BA Sale a csersidle aeliallay es eveqege doacesagevie sland eataniea dais eb Os 34dB
GST Nhat OGG Aas ccancAcdangedeRides tlt Maactn dss ol Oy rcanauuuatadiinth nen otal aN i8 ot lotto, 44d
Image.-Rejection®(1404kH2)" 23 css Se ie aed Seward ote eatee os onew opie satan le yee Sauda odd dd leidcadddei tase ws 50dB
IE Rejection. (GO3KHZ): ccc cee nk meee ey be wey eelabiis edad akarne saa Nevels Diode bee ade ee eed ae x 60d8
Distortion: :(999KHZ)' 2 cael Sachets Pek ee te Sag bee Scat ale dg ico wh See AG Da RGS be bel ake Bhan doce 2%
SK Sensitivity (at 98-MHZ) cc ccccc ccd ene ce econ Keele da eee ae Oo bind EEE Ree we lmelnae elena gnsia ek ward e nib le eueee Sie 144B
Frequency Response(999kHz, Ref. 400HZ) ... 0... cence ented teenie eenes 100Hz :-3+4dB
4kHz:-12 +648
<LW SECTION>
Intermediate Frequency ........... 0... eee cece eee eee cabs Seals Blaierwcstnyernnch aves amerete en iin al aa leacetenaceen At, 450kHz
FICQUENCY (RANGG oii. One coer Res band Ae We Babb tueaes ape we eal ek haan aes cup kaw seta aay Rand 153~281kH4z
Sensitivity, C20dB. SiN; 27 6KHZ): ck ont Aoore me aM ease oat the aleteanesGnlyn er ae kien Geb M REED Dah od oe ladies 414 B
SN RATIOAQIOKAZ) coda. sets th hea ee ag Med eae eee Rede asin tenes dae wetland ag Deere dopa ees 40d B
Image: Reje cions(Z16KAZ)-s sss veneak Aa settee a aa iv Aen a oe tke ie cnt iltee ell ey wate ee ch edness whakders 50d B
IF. RejectiOn(216KH2Z): 2c ge cei oed Wisco ated Rana ois gh Seep Lata, Oka CMa eG add Aaah aaNet ADEA A aehe sadness 50¢ B

7980M
DISCORION yaks nciar se cot een hee cas ae neta, eee BE BE Teale akon uh tee a ahh sees Sect ne atatane eM ahh et eA ania SR RES Lte et Pi 2%
Frequency Response (216kHz, Ref 400kHz) ........ 22.0202 100Hz: -3+4dB
4kHz :-12+6dB
< GENERAL>
PoWer Supply” “s.ce.8enc toa cos teeta een eee ite ake RASS haeleemen oR abin Mare eh a ee DC 14V
Pre-Output Impedance: fac 2 reeds said eh eee hee ee OSES CRRA oe glans ailiteaes ciara ean Mee Seg oe 1.6V/10kohm
S@MICONGUCCONS cao cod ehaad de eaece doen pe eee eee Oe Changer Unit: 261C’s, 39 Transistors, 15 Diodes, 11 Zener Diodes
Tuner Unit: 191C's, 50 Transistors, 24 Diodes, 6 Zener Diodes (C)
19 IC's, 53 Transistors, 24 Diodes, 6 Zener Diodes (@)
DIMeNnsions (WXH XD): nhersccccane taatenseesleal se thaaa a hies ie pees take Changer Unit: 178x50x 153mm
Tuner Unit: 178x25 x 150mm
Weight: cvisaiclnnoke do. dbs chi cae oem een eine tote g eae eons iain aus ceets Nels amnmenintis name ok Changer Unit: 2.2Kg
Tuner Unit: 0.7Kg
Notes: Due to continuing product improvement, specifications and designs are subject to change without notice.
©: For except Germany Model only.
@ : For Germany Model only. Others : Common.

ERROR INDICATION
ce
Magazine cannot be ejected. Press the eject button and set to
Disc is not drawn out or set the play mode. If the play mode
back into the magazine tray. can not be set, press the eject
Disc change operation does not} button again. Once the magazine
function. is ejected, reinsert it then set the
play mode. If the magazine can
not be ejected, contact a service
shop.
Press the eject button to eject
the magazine. Now insert an
empty magazine and recover the
disc. If this does not work,
contact a service shop.
Disc is drawn out of the
magazine tray but is not set
back into it.
Press the eject button to eject
the magazine. If there is a disc
inside the changer, insert an
empty magazine and recover it. If
this does not work, contact a
service shop.
Magazine does not move
forward or backward.
Wait for several seconds. If no
signals are transferred, turn the
ACC power off then back on. If
the problem persists, disconnect
the battery power lead and ACC
power lead, then reconnect
them. If the problem still
persists, check the connection of
the DIN cable. If the problem still
can not be solved, contact a
service shop.
No transfer of signals between
changer and audio box.
The error display turns off once
the temperature returns to
normal.
Excessively high temperature
detected in car.
PRECAUTIONS
Do not attempt to repair or service the unit yourself; return the unit to your nearest
authorized Alpine Service Station for servicing.
Cautions before installation
The magazine is pushed out forward (approximately 8cm from the panel) when discs
are changed or magazine is ejected. To take out the magazine, a free space of more than
14 cm is required from the front panel. Select a place for installation where the magazine
is ejected. Select a place for installation where the magazine will not hamper stick shift
operation.
More than 14 cm
Temperature in the vehicle
When your car is parked for a long period of time during the summer or winter, the
temperature inside the car fluctuates greatly. The temperature inside the vehicle should
be between +60°C and —10°C (+140°F and +14°F) when operating the unit.
Cautions during Playback
Playing a disc while driving on a very bumpy road may result in skips but this will not
scratch the disc or damage the player.
The noise level on compact discs is much lower than on analog-type records or tapes.
Therefore, before playing a disc, turn the volume control fully counterclockwise, then
adjust volume by gradually turning the control clockwise once playback begins.
Do not turn clockwise too abruptly as this could damage the speakers.
Handling Magazine
The magazine is automatically pushed out forward when a disc is changed. When this is
done, do not press on the magazine strongly with your hand or subject it to strong shocks,
as this will result in damage. Also, operate in such a way as to not hamper driving, as you
may knock on the magazine when shifting gears.
Improper
Improper
CAUTION:
@ Do not insert anything other than magazine into insertion slot.
@ Do not remove the unit from the Q.R.B. before ejecting the magazine. If the unit with
the magazine installed is dropped onto a floor, the disc will be damaged.
FEATURES
MAGAZINE HOUSING 3 CDs
Three 5-inch (12 cm) compact discs can be housed in the CD magazine. Any one of
the 3 CDs in the magazine can be quickly and easily accessed for playback of the
entire disc or individual selections.
FULL FRONT DIN™ CHASSIS
Q.R.B. (QUICK RELEASE BRACKET)
WIRELESS REMOTE CONTROL
The 7980M comes equipped with a wireless remote control that can control the tuner
and CD changer functions.
8 TIMES OVERSAMPLING DIGITAL FILTER
HYBRID IDAC
Alpine’s 20-bit Hybrid interpolative DAC combines 1-bit D/A conversion technology (for
excellent low level linearity) and a multi-bit D/A converter (for best Dynamic Range,
Signal-to-Noise Ratio, and jowest distortion and noise characteristics).
The result is flawless, accurate performance, outstanding resolution and detail along
with superb Dynamic Range.
M.I.X.
The tracks on disc will be played randomly.
REPEAT
When.the repeat button is pressed, the current track will be played back repeatedly.
DISC SCAN
Plays the beginning of each track for ten seconds before skipping to the next track.
Upon locating the desired location, press the DISC SCAN button again to stop the
scanning and play through the selection.
INTELLIGENT AUTO MEMORY
In the Auto Memory mode, the 6 strongest stations in each band will be stored
automatically in the memory presets.
INTELLIGENT PRESET SCAN
The stations currently stored in memory preset locations are scanned automatically for
ten seconds each.
The Intelligent Preset Scan will only scan the strong stations. Weak stations will be
skipped.
D.A.P. (DIRECT ACCESS PRESETS)
D.A.P. allows storing FM, MW and LW stations on the same band, eliminating the
need to press the band select button. Up to 6 stations can be stored in the 0. A.P.
band.
LITETOUCH™ 30-STATION PRESETS
FM1: 6, FM2: 6, MW: 6, LW: 6, D.A.P.: 6
S.T.M. (SOURCE TONE MEMORY)
Automatically memorizes the settings of your Bass/Treble Controls for each source.
DUAL PRE-AMP OUTPUTS
Dual pre-amp outputs, along with a pre-amp fader, make easy and completesystem
expansion possible.

7980M 7980M
CONNECTIONS
CONTROLS AND INDICATORS
(ies
Listed below are all the Controls and their Indicators. Please see the Operation Section
for explanations.
@® Disc SELect Button
/DX (Local/Distance) Button
SDK Switch
Eject Button
Magazine Loading Slot
TUNER/BAND Button
DISC (Play p» /Pause II ) Button
SCAN Button
REPEAT Button
M.LX. Button
S©GQL0Q® ©8686
Station Preset Buttons
Band Indicators
Preset Address indicators
Digital Display
SDK Indicator
STereo Indicator
MOno fndicator
ALL Re peat Indicator
RePeaft indicator
DX Indicator
@EE99 OS099
D.A.P. (Direct Access Preset) Button
S8S888 888898
®
M.I.X. Indicator
A. MEmo Indicator
SEEK Indicator
D.A.P. Indicator
UP (>>|) Switch
DN (H<) Switch
POWER On/Off Switch
Sensor Window for Remote Control
TUNE/DISP Switch
Audio MODE Select Switch
/Audio Level Control!
MONO/Preset SCAN Button
Speaers
Lautsprecrer
Haut-paneurs
Aitopaniand:
Attavoces
Hoguiare
Frontief
Vorne hnker
Devant gaucne
Anteriore snstto
Detantero cquerdo:
Vanster hoguatare fram
Front ngnt
Vorne rechter
Devant dro
Anteriore desto
Delantero derecno
Hager nogratare tram
Rear eh
Postenore srusto
Traseo izqwerdo
vanster hog.a.are bas
Rear agnt
minten recnie-
Amere dron
Postenore desvo
Trasero dereno.
Oger nograiare bak
[I REMO=E ON | Bive ete Bla, We-3}
Brown Wnite i Bran Wed)
Yeionw Ger
Rec Ro:
7380M Tuner Unit
7980M-Radioteil
Syntonisateur 7980M
Sintonizzatore 7980M
Sintonizador 7980M.
7980M-Tuner
‘Pink /werites
Rosa! Wels,
(Biue/worte;
{Blau/Weik)
(Yettow)
{Gelb)
iWeite/Blve)
Wes Biaui OIMMER
CONTROL
Abblendrege!
7980M Changer Unit
7980M-Wechsierted
Changeur de CD 7960M
Caricatore CD 7980M
Cambiador CD 7980M
7TS80M CO-vaxare
Al fro gi ingresso dell mre
Aun cable de enteaga de rater uotor de
Till ingangskabein tor ludavbrutt 9a en annan apbarat
Ty puwer anienna/Zu Power Ant
Vers l'antenne de purssance/All antenna di potenra
Ale antena electrica/Tull ef antenn
To venicie phone/Zu dem Teleonon des Fatrreuges,
Vers le telepnune du venicule
At telefono del veccoto/Al teletone de! veniculo
Till Dittetefon
To ampbtrer or equalizer
Zu Verstarner coer Equatver
Ignnon Key
amplifcatore o all equaluzatore Zufaechtussel
At ampliticador 0 ai ecualzador Cline contact
Tall
torstarkare
eller
equahzer
Chave
di
accensione
Liave
de
encendido
Tantnycket
Battery
Batterve
Bitterie:
Bitteria
Bueria
Buters
To aummer contol lead
Zur Helligneits Steuerieitung
meee VES Je conducteur de commande du gradateur
Al féo di controtio det dimmer
Al cable de control del reductor de luz
Tw waple for dampning av belysningen

i)
CS)
6
Audio Interrupt Out Lead (Pink/White)
Power Antenna Lead (Blue}
When loaded with a power antenna, connect to the +B terminal of the power
antenna.
Audio Interrupt In Lead (Pink/White)
Remote Turn-On Lead (Blue/White)
Connectthis lead to the remote turn-on lead of your amplifier or signal processor.
Switched Power Lead (Ignition) (Red)
Connect this lead to an open terminal on the vehicle’s fuse box or another
unused power source which provides (+)12V only when the ignition is turned on
or in the accessory position.
Battery Lead (Yellow)
Connectthis lead to the positive (+) post of the vehicle’s battery.
Ground Lead
Connect this lead to a good chassis ground on the vehicle.
Make sure the connection is made to bare metal and is securely fastened using the
sheet metal screw provided.
Dimmer Control Lead (White/Blue)
Connectthis lead to the lead in the vehicle’s parking lights circuit that provides
(+)12V when the parking lights are turned on. This will dim the unit's
backlighting at night when the parking lights are on.
Power Wiring Harness (Included)
Connect to the Power Supply Connector 40.
Power Supply Connector
Connect to the receptacle of Power Wiring Harness @.
Fuse Holder (3A)
DIN Extension Cable (Included)
DIN Connector
Connect this to the DIN connector on the Tuner Unit.
RCA Extension Cable (Sold Separately)
DIN Jack
Rear RCA Jacks
RED is right and WHITE is left.
Front RCA Jacks
RED is right and WHITE is left.
Antenna Receptacle
OPERATION
« BASIC OPERATION >
Preparation for Playback
1.
Insert your discs (up to 3) into the disc slots of the CD magazine with the label side
facing up (Fig. C).
To remove discs already in the CD magazine, push the lever on the CD magazine for
the disc you wish to eject. The disc will come halfway out from the CD magazine, so
pull out the disc by grasping the disc by the edge with your hand (Fig. D).
NOTE:
Hold the disc so you will not leave fingerprints on the disc surface (refer to
“PROPER CARE OF YOUR DISC" section).
2. Insert the CD magazine ail the way into the 7980M with the narrow side facing the
unit as shown here (Fig. &).
Magazine
Fig. E
NOTES:
1. Do not insert heat-deformed discs into the CD magazine.
2. Do not forcibly remove the CD magazine by hand.
3. Only one disc can be inserted in each housing slot. Attempting to insert another disc
may cause damage.
4. Only compact discs containing the mark shown below can be used.
Ist,
DIGITAL AUDIO
5. To play 3-inch discs, you must use the (4908) adapter ring.
6. When using the 3-inch discs, insert only one disc, not more than one.
OPERATION
Turn the Audio MODE Select switch.
Right
Volume Maximum
Indication example
VOL adjust. (G — 35) Volume Minimum
2 & c 3$
TRE adjust. (-7 — +7)
Treble Minimum Treble Maximum
Bass Minimum Bass Maximum
BAS adjust. (—7 — +7)
£S -3 39-4 BS
BAL adjust. (— — 8) Output at Left Output at Right
Channels only Channels only
alae Bes
FAD adjust. (— — 8} Output at Rear Output at Front
Channels only Channels only
Peale Fe 8 FF g
How to adjust the volume and tone (Refer to the diagram above.)
1. Turn on the system by pushing the POWER On/Off switch @ or any other button
(other than Eject button @).
2. Press the Audio MODE Select switch @ to select each adjusting mode.
VOL —> TRE —> BAS —> BAL —> FAD —> VOL
Each time this switch is pressed, the mode changes. The mode is indicated in the
display. The mode indicator changes as each mode is selected.
3. Once the desired mode appears in the display, rotate the Audio MODE Select switch
80 to make your adjustment. The display will return to the previous mode indication
after five seconds.
Power Off
Press the POWER switch @ to turn the unit off.
~10—

OPERATION
$.T.M. (Source Tone Memory)
The Bass and Treble controls can be individually set for each source (FM, MW/LW, and
CD). Once set, their positions are automatically memorized. Whenever the source is
reselected, the Bass and Treble controls will return to your preset configuration.
Function Switching
1. Tuner Mode
Press the TUNER/BAND button © to switch from CD to Radio.
2. CD Mode
Press the DISC ( »/II ) button @ to switch from Radio to CD.
«RADIO OPERATION >
If the unit is not in the Radio mode, press the TUNER/BAND button ©.
Tuning Band Selection
Press the TUNER/BAND button © to select the desired tuning band. The Band
indicator 42 shows your selection.
Switching the FM Volume
Use this function if the difference in volume is great when switching between a CD and
the FM radio.
1. Press the TUNE switch @ for 2 seconds.
2. Press the Preset No. 1 button @ to switch the display between “F-HI” and “F-LO”.
The FM volume can be set to one of two positions, high or low. Set the position
according to the broadcast station.
F - HI F-LO
Local/Distance (DX) Sensitivity Switching for FM, MW and LW
You can select the radio SEEK sensitivity (local or distance (DX)) by pressing the DX
button @ for more than two seconds.
In the distance mode, with DX indication @, the radio tunes in both strong and weak
stations (all stations from A to M in the illustration).
In the local mode, with no DX indication @, the radio tunes in only strong stations
(stations C, F, H and L in the illustration below).
°°
= H
aD
CA” (senses sellSeete ces cS eS te
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<4
n Station Frequencies
44m
| 7980M 7980M
OPERATION
FM Stereo/Monaural Switching
You can select between the Auto Switching or Monaural only for FM reception by
pressing the MONO button @). In the Auto Switching mode, you can receive stereo
broadcasts in stereo and monaural broadcasts in MONO. The STereo 48 or MOno
indicator ( shows you which one is being received. In the monaural mode, you will
receive the broadcast in monaural only, even if the broadcast is in stereo. The monaural
only mode quiets the noisy stereo signal of weaker broadcasts. The STereo indicator will
not appear while the Monaural mode is selected.
Manual Tuning
1. Press the TUNE switch @ until the SEEK @ and A. MEmo @ indicators disappear in
the display.
2. To select the tuning band, press the TUNER/BAND button ®. The Band indicator @
shows your selection.
3. To tune to higher frequencies, press the UP switch @. To tune to lower frequencies,
press the DN switch @.
Auto SEEK Tuning
1. Press the TUNE switch @ until the SEEK indicator @ appears in the display.
2. Select the tuning band with the TUNER/BAND button ©.
3. Press the UP @ or DN @ switch. The unit automatically tunes to the next higher or
lower frequency and locks on that station.
Manual Memory Programming
Follow the instructions below to enter stations into preset memory:
1. Select the tuning band (FM1, FM2, MW, LW) with the TUNER/BAND button ©.
2. Tune in your desired station using manual or auto seek tuning.
3. Press the Preset button number 1 @ for more than two seconds. The preset indicator
@ in the display will begin to blink. The tuning band (FM1, FM2) can be changed by
pressing the TUNER/BAND button © if you wish to change bands. Press that Preset
button again while the display is blinking (within 5 seconds).
4. The frequency you selected will be placed into Preset Memory number 1 and will
appear in the display.
NOTE:
If a preset memory has already been set in the same address, it will be cleared and
the new station will be memorized.
5. Follow steps 2 — 4 for the remaining presets (2 — 6). This procedure should be
followed for FM1, FM2, MW and LW.
NOTE:
While setung the memory presets you can switch back and forth between FM1 and
FM2. However, while in this mode you cannot switch back and forth from MW/LW to FM.
OPERATION
Auto Memory Preset
1. Press the TUNE switch @ to light up the A. MEmo indicator @.
2.
Select
the
desired
tuning
band
(FM1,
FM2,
MW
or
LW)
with
the
TUNER/BAND
button
©.
NOTE:
The Auto Memory Preset procedure is allowed in the D.A.P. Mode.
3.
Press
the
UP
@
or
DN
@
switch.
The
tuner
will
automatically
seek
the
six
strongest
Stations
in
the
selected
band
and
memorize
them
in
order
of
their
signal
strength.
These
stations
are
automatically
placed
in
the
preset
memory
with
the
strongest
station
in
Preset
No.
1
and
the
6th
strongest
station
in
Preset
No.
6.
When
seeking
stations,
the
tuner
first
seeks
in
the
local
tuning
mode.
If
less
than
6
stations
are
memorized,
the
tuner
seeks
again
in
the
distance
(DX)
mode.
4.
After
finishing
the
Auto
Memory
Preset,
the
tuner
goes
to
the
station
placed
in
Preset
Memory
No.
1.
tf
no
stations
are
memorized,
it
returns
to
the
original
station
you
were
listening
to
before
the
Auto
Memory
Preset
procedure
began.
Preset Tuning
After
the
preset
stations
have
been
memorized,
you
can
tune
in
your
desired
station
(within the band displayed) with one touch of a button.
1.
Select
the
tuning
band
(FM1,
FM2,
MW
or
LW)
with
the
TUNER/BAND
button
©.
2.
Press
any
one
of
the
Preset
buttons
@
and
the
number
of
that
preset
will
illuminate
in
the matrix display
3.
The
frequency
of
the
station
placed
in
the
selected
preset
location
will
appear
in
the
display.
D.A.P. (Direct Access Presets)
This
feature
allows
the
storage
of
FM,
MW
and
LW
presets
on
the
same
band.
Press
the
D.A.P.
button
@)
to
light
up
the
D.A.P.
indicator
@.
To
program
stations
into
the
D.A-P.
band,
follow
steps
1
—
4
as
described
in
the
Manual
Memory
Programming
section
on
page
14.
Accessing the D.A.P. Presets
1.
Press
the
D.A.P.
button
@.
The
D.A.P.
indicator
@
will
illuminate
in
the
display.
2. Press one of the Preset buttons @.
3.
The
frequency
of
the
station
placed
in
the
selected
D.A-P.
location
will
appear
in
the
display.
Preset Scan
This
feature
locates
the
six
stations
preset
in
memory
on
each
band
and
plays
10
seconds
of
each,
in
numerical
order
from
Preset
No.
1
to
No.
6.
1.
Select
your
desired
tuning
band
by
pressing
the
TUNER/BAND
button
©.
2. Press the P. SCAN button @) for more than two seconds.
3.
The
digital
display
will
indicate
the
frequency
of
the
preset
station
tuned
inamd
the
corresponding
preset
indicator
in
the
display
(for
each
preset
1
through
6)
wilf
blink.
For
FM
presets
it
will
scan
FM1,
then
FM2
and
continue
to
cycle
betweenthese
two
bands.
4.
When
your
desired
preset
station
is
reached,
press
the
P.
SCAN
button
@for
a
second
time.
The
indicator
on
the
Preset
button
will
stop blinking
and
the
unr
will
remain
on
the
selected
station.
Sie

OPERATION
@ Traffic Information Receiving
This model is equipped with traffic information receiving apparatus to be used in West
Germany where the traffic information is broadcast in FM. The following is how to use
this unit to receive traffic information broadcasting.
Four preset volume levels can be set for traffic information reception in the SDK
mode.
Set the ALARM LEVEL selector switch on the Tuner Unit to the desired level.
itt
High ~—>~ Low
NOTE:
When setting the ALARM LEVEL, be sure to turn the ACC power supply OFF.
Two ways are selectable when traffic information reception signal is weak in the
SDK mode.
1. Press the TUNE switch @ for 2 seconds.
2. Press the Preset No. 3 button @) to switch the display between “ALA” and “SRCH".
When the ALA is selected, alarm goes off and when the SRCH is selected, other
broadcast station is sought automatically.
e Radio Mode
1. Select FM position.
2. Depress the SDK switch @ and tune to a station. If the station is a traffic information
station, the SDK indicator @ will glow and show the reception of a broadcast from a
traffic information station.
NOTE: SDK Indicator
When SK signal is received irrespective of the SDK switch position, the SDK
indicator will illuminate.
3. In the SDK moge, stations other than traffic information stations are muted and cut
out. Therefore, it is easy to select a traffic information station.
4. As the signal of the tuned traffic information station becomes weak, the SDK indicator
will extinguish. Then after the lapse of 25 seconds, a rhythmical alarm will sound to
urge retuning tc ancther stronger station. If the reception of further traffic information
is required, tune in the desired traffic information station. When received, the alarm
will stop and the SDK indicator illuminates. Since the alarm will continue if no signals
from any other traffic stations can be received, release the SDK switch for reception of
normal broadcasting.
=43'=
OPERATION
5. Even if the Volume control @0 is set to the minimum position, the volume of the traffic
information will be automatically adjusted to the level preset by the special volume
control on the Tuner Unit. After the message, the sound volume returns to the
previously adjusted level.
6. If traffic information reception is no longer necessary, release the SDK switch for
normal radio reception.
NOTES:
e When the SDK switch is pressed and there is no SK signal, ALARM will sound after
the lapse of 25 seconds. Press the SDK switch again to stop it.
e When the SEEK operation is carried out with the SDK switch turned on, the SEEK
operation stops at a traffic station only.
e The A. MEMO operation with the SDK switch turned on: only the traffic stations will
be memorized.
e This system has a special volume control on the Tuner Unit for adjusting the volume
level for SDK reception and the alarm which will sound when there is no SK signal in
the SDK mode. Set the Volume control @ to the minimum level position, and adjust
the special volume control on the Tuner Unit to your desired level with a screwdriver.
e CD Mode
1. When the unit is playing a CD with the SDK switch pushed in and tuned to a traffic
information station, the CD play is interrupted and changed to FM radio if the
pre-tuned station begins a traffic information message. When the message is over, the
unit reverts to CD play automatically.
2. Only when the SDK switch is on, the SDK display will appear if a traffic information
Station is being tuned.
3. When your receiver cannot receive a traffic information station after a reception of the
traffic information station with the SDK switch on, the receiver automatically starts a
SEEK operation after 25 seconds, and receives another station.
4. When the TUNE switch @ is pushed with the SDK switch turned on, the radio display
will appear for 5 seconds with the sound remained the same condition to allow
confirmation for the station being received. Under this condition, tuning operation can
be made also.
OPERATION
« CD OPERATION >
If a magazine has already been inserted into the unit, and the unit is not in the CD
mode, press the DISC button @.
Disc Loading
1. Insert a magazine into the Magazine Loading slot @.
2. The digital display shows “T-00”.
3. Press the DISC { B/E) button @.
4. The magazine will move out from the 7980M and the discs inside the magazine will be
loaded.
5. Play will start from the first track of the first disc. Note that in the case where the
magazine was already loaded, play will begin from the place where the play last
stopped.
CAUTION:
When the 7980M is changing discs, the magazine will be pushed out from the
front of the unit. During this process, do not touch the magazine or subject it to
strong shocks as this could result in damage to the mechanism. If the 7980M is
mounted in a location that could interfere with your driving (such as changing
gears), operate the unit keeping in mind the movement of the magazine.
NOTES:
e When the last track of the disc finishes playing, play will begin automatically with the
first track of the next disc.
e When the last track of the third disc inside the disc magazine finishes playing, the
7980M returns to disc 1 and repeats playback of the entire magazine.
CD Display Switching
In the CD mode, the display will show the Disc and Track Number (Fig. 1) or the
Elapsed Time (Fig. 2). Press the DISP switch @ to select between the Disc/Track number
and the Elapsed Time indicators.
T on ee ee
rou 2 8 a5
Track Mode Time Mode
Fig. 1 Fig. 2
-14-

OPERATION
Pause
While the disc is playing, press the DISC ( p/&§) button ® to temporarily stop playback.
The digital display 19 will show “PAU”. To resume playback, press the DISC ( »/EE} button
@® again.
Music Sensor (Skip)
This feature allows you to access the beginning of your musical track selection simply
and quickly. It is functional in the play or pause mode. The digital display (@ shows the
track number you have selected.
e To advance to the next track on the disc, press and release the UP ( pp ) switch @.
1. Playback stops, and the pickup moves up to the beginning of the next track. That
track number appears in the digital display @.
2. Playback begins immediately.
3. If you wish to access a track further ahead on the disc, continue pressing and
releasing the UP ( Pm) switch @ until you reach the track of your choice.
e To replay the track that is currently playing, press and release the DN ( e€_) switch
1. Playback stops, and the pickup moves back to the beginning of the current track. The
track number in the digital display @ remains the same.
2. Playback begins immediately from the beginning of the track.
3. If you wish to access a track further towards the beginning of the disc, continue
pressing and releasing the DN ( #4 ) switch @ until you reach the track of your
choice.
4. When you reach the last track on the disc, the pickup automatically returns to the first
track. When you reach the first track using the DN ( Ked ) switch @, the pickup
automatically goes to the track.
Fast Forward/Fast Backward
The Fast Forward/Fast Backward feature works in both play and pause modes.
1.
Press
either
the
UP
(
pp
)
@
or
the
DN
(
K€)
@
switch
and
hold
it
down
for
more
than 2 seconds.
To move the pickup forward rapidly, hold down the UP ( pm ) switch @.
To move the pickup backward rapidly, hold down the DN ( Ke }) switch 2.
Release the button when you get to the desired position on the disc.
When the pickup reaches the end of the disc, it will then begin playback from the
beginning of the first track.
aRwWN
Repeat (One/All)
This feature allows you to continuously repeat a single track or one entire disc.
To Repeat a Single Track
1. Locate the music track of your choice using the UP ( > ) @ or DN ( Kee ) 8 switch.
2. Press the REPEAT button ©.
The RPT indicator 49 will ituminate.
The music track will be played back repeatedly.
3. To stop repeat play, press the REPEAT button @ twice. The indicator switches from
RPT to RPT ALL and the illumination will be off.
To Repeat an Entire Disc
1.
While
playing
a
disc,
press
the
REPEAT
button
®
until
the
RPT
@
and
ALL
@
indicators
will
illuminate.
2. The disc will be played back repeatedly.
3.
To
stop
repeat
play,
press
the
REPEAT
button
@
once.
The
indicator
illumination
will
be off.
Disc Scan
Press
the
SCAN
button
®
and
the
unit
will
playback
the
first
10
seconds
of
each
track
in
Succession.
This
function
is
useful
in
searching
ahead
on
a
disc
for
a
specific
selection.
Pressing
the
SCAN
button
®
a
second
time
deactivates
the
function.
M.1.X. (Random Play)
Press
the
M.I.X.
button
@
while
the
unit
is in
the
play
or
pause
mode.
Musical
tracks
on
the
selected
disc
will
be
played
back
in
a
random
sequence
generated
by
the
microprocessor.
After
all
the
tracks
on
the
disc
have
been
played
back
once,
the
player
will
play
the
next
disc
in
this
function.
~15-
7980M 7980M
OPERATION
« REMOTE CONTROL OPERATION >
WIRELESS REMOTE €ONTROL UNIT 4380
@ Mode Selecting Button (=)
©
This button is not used for 7980M. C&D
© Mute Button
When
this
button
is
pressed,
the
sound
signal
is
immediately
down
20
dB
in
an
instant.
@ Volume Adjusting Button
To
turn
up
the
volume
.
20.6
e
ee
ceee
button
To
turn
down
the
volume...
2.2.00
cece
eee
ee
button
15) Button
During radio operation:
This button allows the preset to be changed in increasing order (see below).
During CD operation
Use of this button will cause the CD to skip to the next track.
© [@)] Button
During radio operation:
This
button
allows
the
preset
to
be
changed
in
decreasing
order
(see
below).
During CD operation:
Use
of
this
button
will
cause
the
CD
to
skip
backwards
to
the
beginning
of
the
current
track or previous tracks.
7) (e)] Button
During radio operation:
Select desired radio band (see below).
ae ef ml
OPERATION
C8 (®] Button
During radio operation:
This
button
will
cause
the
radio
to
seek
the
station
at
the
next
highest
frequency.
Continue holding the button to skip several stations.
During CD operation:
Using
this
button
will
cause
the
7980M
to
load
the
next
CD
in
the
magazine
(see
below).
NOTE:
As
for
the
remote
contro!
(4380),
operate
each
button
facing
the
front
of
the
body
of
7980M.
For the
results
operating
the
4380
(remote
control),
make
sure
it
is
pointed
in
the
general
direction
of
the
7980M.
CAUTIONS:
e This unit can be used for the model corresponding to the remote control unit
manufactured by Alpine. However, it must be noted that the operational functions
differ with models to be controlled.
e This unit is small and light weight. Take care not to drop or hit it. Do not put the unit in
a pocket where it might be sat on or exposed to undue stress or dirt. This could cause
shorter cell life and circuit malfunction.
e To take out a Stain from this unit, wipe it with a slightly damp cloth.
e
Never
use
a
kind
of
benzine
or
thinner
because
they
cause
the
case
or
thecoating
to
change
in
quality.
e
Protect
this
unit
from
dust
and
moisture,
and
take
care
not
to
give
it
a
hard
shock
or
to
pour
drinks
on
it.
e
In
summer,
the
temperature
sometimes
rises
in
the
car.
In
such
a
case,
first
open
the
window
and
use
this
unit
after
driving
the
car
for
a
while
to
cause
the
temperature
to
fall.
e Take care not to put this unit on a place exposed to the direct sunlight, such as the
dashboard.
e Use this unit so as not to cause the driving to be disturbed.
Cell Replacement
Applicable cell... Use one CR2025 or equivalent.
1. Opening the Cell case
Looking
at
the
back
of
the
remote,
grasp
the
bottom
of
the
unit
between
your
forefinger and thumb. Place yout thumbnail into the slot and pull out gently. A small
coin
or
screwdriver
can
also
be
used
with
a
gentle
twisting
motion
(Fig.
F).
2. Replacing the Cell
Put
the
cell
in
the
case
with
the
(+)
indication
upward
as
shown
in
the
illusra
tion
(Fig.
G).
3. Closing the case
Push
the
ceil
holder
back
into
the
remote
until
a
click
is
heard
(Fig.
H).
Fig.
F
Fig.
G
Fig.
SiGe

7980M
Adjustment Procedures
1 FM SECTION
(1) Dummy Antenna Circuit
| 10ohm - 450hm_—s
i f
Input | 600hm | Output
1 i)
beeen eee ee J
For 50 ohm FM Signal Generator Figure 1
Changer Unit
(2) Connections
DC Volt
Meter
Antenna Receptacle
t
FM Signal Generator
FM Dummy
Antenna
Figure 2
Tuner Unit
Changer Unit
Antenna Receptacle
AC VTVM
FM Signal Generator
FM Dummy
Antenna
Figure 3
Tuner Unit
FM Stereo Modulator Pils lana) Geberanor
Changer Unit
Antenna
Receptacle
AC VIVM
FM Dummy
Antenna
Tuner Unit 1Okohm
Figure 4
-17-

7980M
FM Signal Generator
FM Stereo Modulator
Changer Unit
Antenna
Receptacle
Frequency Counter
FM Dummy
Antenna
Tuner Unit ;
Figure 5
(3) Control Settings (Changer Unit)
Power Switch ............. 002 c cece eee eee eee ON
Fader Control ...................-..-.- Front Position
Balance Control ................-2205- Center Position
Treble/Bass Control .................. Center Position
Band Switch: conse cocetew dad tbedenetsaieatauddns FM
Otherss 352336 c2t ee ha tel eebee died fines OFF
Signal Generator Dial Control} Test Point Adjustment
98.1MHz,
Seek Stop . 15dB
Figure 3 98.1MH T.P.7
Adjustment 2 (Mod. 400Hz, :
Dev. 22.5kHz)
98.1MHz,
. 60dB Audio
(1)] Figure 4 98.1MH
? (Mod. 400Hz, z Output
3 Noise Level Dev. 22.5kHz)
Adjustment 98.1MHz,
- 19dB F
: Audio
(2)] Figure 4 98.1MH
g (Mod. 400Hz, BN eueoue
Dev. 22.5kHz)
98.1MHz,
“ce Figure 5 node 98.1MH T.P.8
i - Es
Adjustment = (Mod. 400Hz, :
Dev. 22.5kHz)
~18-
IF 98.1MHz,
1 ‘Adiocanen Figure 2 60dB Adjust T2101 to 0+ 30mv.
} (Mod. OFF)
Adjust VR2101 to obtain
15+5dB T.P.7 Output.
Adjust $419 (VOLUME) to obtain
500mV output. This value is OdB.
Adjust VR2102 to 34+3<B output
at SG level minimum.
Adjust VROO1 to read 19+ 0.05kHz
on Counter at T.P.8.

7980M
Step Signal Generator Dial Control Adjustment
Stereo 98.1MHz, Adjust VRO03 for Rch output to be
Separation ; 60d8 Audio minimum and confirm Lch and Rch
Adjustment Riga (Stereo Mod, vee Output output level difference is more
(Lch) Lch, only) than 25dB.
Adjust VROOQ2 for Lch and Rch
output level difference to be 8dB.
Stereo 98.1MHz,
Blend . 34dB Audio
; Figure 4 98.1MHz
Adjustment (Stereo Mod, Output
(Lch) Lch, only)
Stereo 98.1MHz,
Separation ; 60dB Audio Proceed same adjustment under
é Figure 4 98.1MHz ;
Adjustment (Stereo Mod, Output step 5 by alternating Lch and Rch.
(Rch) Rch, only)
Stereo 98.1MHz,
Blend : 34dB Audio Proceed same adjustment under
: Figure 4 98.1MHz
Adjustment (Stereo Mod, Output step 6.
(Rch) Rch, only)
2 SDK SECTION
(1) Dummy Antenna Circuit
1 1ohm 450hm—t
\ {
Input ; 600hm ‘ Output
' 1
ete ee a Oe ey ee er 4
For 50 ohm FM Signal Generator Figure 6
(2) Connections
SDK Modulator FM Signal Generator
Step| Test Point
TP10
AC VTVM
Antenna
Receptacle
FM Dummy Antenna
Figure 7
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7980M
(2) Control Settings
Power Switch ..................22..4-. ON Treble/Bass Control ....... Center Position
Band Select Switch ................... SDK Rader Control o.. 2. ee hares ees Front
Balance Control ........... Center Position Others \isysmic vert cteoeteasdal eles oe OFF
(3) Adjustment Procedures
Step Signal Generator Dial Control Adjustment
98.1MHz, 60dB
SK : (SK, BK, DK: ON)
] ; Figure 7 98.1MHz T.P.10
Adjustment (Mod, 1kHz Dev.
22.5kHz)
98.1MHz, 60dB
DK :
2 : Figure 7 98.1MHz T.P.11
Adjustment
(1) Preparation of Before Adjustment
@ Remove the Base Chassis of Changer Unit.
(SK, BK, DK: ON)
(Mod, 1kHz Dev.
3 Compact Disc SECTION
@ Use the wire to connect each Test Point on CD-LSI P.C.Board.
Note. After adjustment, securely remove the solder used to connect the wire.
L002 for Maximum
Output.
VROO4 for Maximum
Output.
22.5kHz)
(2) Connections
Tuner Unit
Jitter Meter
Test CD
Changer Unit
Figure 8
Tuner Unit
Oscilloscope (DC MODE)
Test CD
Changer Unit
Figure 9
~20-

7980M
Tuner Unit
Oscilloscope (AC MODE)
Changer Unit
(3) Control Settings (Changer Unit)
POWER. SMV 'S cf Syotirotha vet Satie a none eee posse ies Boawele ON
Fader Control ................0.00000e Center Position
Balance Control ..................-... Center Position
Treble/Bass Control .................. Center Position
OCMEISS Fh Oe 2 oa cull Selim lated oe Sa dds buts uorocaneotentes OFF
(4) Adjustment Procedures
Test CD [connection [Text Point |Adjustment Point Adjustment
: Set the mode to playback
with the test disc loaded.
: Using the jitter meter, measure the
T.P.1 signal.
: First, rotate VR103 fully counter -
clockwise.
: Next, carefully rote VR103
clockwise untill the jitter meter
shows a minimum value and then
increases by +0.5nS from the
minimum value.
TCD - 782
Jitter
Track Figure 8
No.1
(A-BEX)
® © ® Oo
Adjustment
: Set the mode to playback
with the test disc loaded.
: Connect the wire of T.P.3 to T.P.4.
: Using the oscilloscope, measure the
T.P.2 signal in reference to VR.
(VR standard =0V)
@: Adjust VR101 so that the positive
and negative deflection widths of
the T.P.2 signal are at the same
level, relative to VR (OV).
(The entire waveform moves up
and down.)
TCD - 782
Track
No.8
(A-BEX)
Tracking
Balance Figure 9
Adjustment
©: After adjustment, disconnect the
wire of T.P.3 and T.P.4
-~21-

7980M
Test CD connection [rest Point [Adjustment Point Adjustment
@®: Set the mode to playback
with the test disc loaded.
@: Using the oscilloscope, measure the
T.P.1 signal.
@: Adjust VR102 in order to minimize
the waveform induced by the
reaction to the omission of the
T.P.1 signal.
@: Conduct the tracking balance
adjustment once again.
TCD -721
Track
No.6
(A-BEX)
Tracking
Offset
Figure 10 | T.P.1 VR102
Adjustment
\
Adjut VR102
so that this portion
is minimized.
i
~22-

7980M
Adjustment Locations
[VR2102 TUNER UNIT (Bottom Side)
TUNER UNIT Main P.C. Board (Foil Side)
93

7980M
CHANGER UNIT CD Deck Mechanism
VR103 VR102 VR101 CD-LSI P.C.Board
Figure 12
CHANGER UNIT
Nosepiece
Main P.C. Board
CD DeckMiechanism
CD-LS| PC.Board
Wire
Wire
CHANGER UNIT CD-LSI P.C. Board (Component Side)
Figure 13
Note: After adjustment, securely remove the solder used to connect the wire.
24 —

7980M
Electrical Inspection Specifications
1. Measuring Conditions
(1) Power Supply : DCI440.2V
(2) Load Impedance : Pre Out 10kohm
(3) Power Output : CD: 1.6V
FM: 500mV
MW /LW: 200mvV
(4) Signal Generator Output : SG Indication
(5) Control Settings (Changer Unit)
Fader = Front Position
Balance — Center position
Treble — Center Position
Bass = Center Position
(6) Standard Modulations
(FM) Mono : 400Hz, 22.5kHz Deviation (MW /LW) 30% 400Hz
Stereo : 1kHz
Pilot : 8%
(7) Dummy Antenna
FM MW /LW
10 ohm 45 ohm 30 ohm 15pF
60
ohm
T
65pF
2. FM Inspection
Ses i a
inputs) | Mod. _
ON/OFF
Usable Sensitivity
98
Stop
Level|_
To
be
not
|
To
be
not
Stopped
|
To
be
ont
stomped
[SB
(oo eae
E To be Stopped
Lea Distortion
a Separation
spa os
5 Stereo 31~37
Blend
ec
S/N more than 30dB
[or [sre i 6
ee i es
sore |
poo
on
45 + 10dB
om less than 1%
ON:1kHz | more than 25dB
Rchonly | (IHF T-200)
ON: 1kHz
Rch only
0 to -9dB
rae
~25-

7980M
Step Item Spec
inputs)
TREBLE ON OFF MAX. +10+3dB
, | Tone
Control j +
98.1 ON OFF
Spec
fikeay | inpusiae
MAX. +15 +4dB
MIN. -15+4dB
Usable Sensitivity |e | aw | ON/OFF S/N more than 20dB
Stop Level| To be not Stopped | 999 | 23 | ON | 3a 1008
| as | N
pom fm fw
Level difference from
FM level
Spet
f tk)
: Stop Level| To be not Stopped 34+ 10dB
less than 2%
Back Up Current Check (at ACC OFF) less than 5mMA
-—26-