Alpine 3JDE-788S User manual

MMMPINE
SERVICE
MANUAL
FM/MW/LW/RDS
In-Dash
CD
Changer
Receiver
scapes
DIGITAL AUDIO
@
The
model
described
in
this
manual
is
developed
from
Model
3DE-7886R.
For
information
that
is
not
mentioned
in
this
service
manual,
refer
to
the
Service
Manual
«
3DE-7886R
(Part
No.
68E26586S01).
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MECHANISM
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3JDE-788S
7R

3DE-7887R
Contents
Packing Assembly Parts List
Packing Method View
Specifications (Only Difference)
Schematic Diagram (4/4) (Only Difference)
Electrical Parts List (Only Difference)
CD Deck Mechanism Assembly Parts List
Exploded View (CD Mechanism)
Extension Cable
Servo Monitor
Adjustment Procedures
Block Diagram
Tuner Schematic Diagram
Parts Layout on P.W.Boards and Wiring Diagram (1/4)
Parts Layout on P.W.Boards and Wiring Diagram (2/4)
Parts Layout on P.W.Boards and Wiring Diagram (4/4)
Schematic Diagram (1/4)
Schematic Diagram (2/4)
Schematic Diagram (3/4)
Description of IC Terminal
Exploded View (2/2)
Disassembly Instructions
Semi-Conductor Lead Identifications
NOTE
:
Due
to
continuing
product
improvement,
specifications
and
designs
are
subject
to
change without notice.
Parts Layout on P.W.Boards and Wiring Diagram (3/4) (Only Difference)
Refer to the Service Manual «
3DE-7886R (Part No. 68E26586S01).

|
3DE-7887R
Packing
Assembly
Parts
List
Part
No.
Description
Symbol
Part
No.
Description
No.
103
Symbol
No.
02B47353F01
Nut,
Hex.
(M5)
102
01T15359Y06
Assy.,
iSO
Connector
0387
2235F13
Screw,
Countersink
(M5X8)
01T00716K02
A6A42363F01
Stud,
Bolt
07B64552F01
60T55630W01
|Battery,
MGN
RO3
(NB)
UM-4
415D71506W02
01T15394Y02
=
Antenna,
JASO-ISO
68P21523Y06
Assy., Remocon
104
105
106-1
Bracket, Strap Receiver
Carrying, Case
Owner's Manual
36A11113W01
03A11112W01
Cap, Rubber (A)
Bolt, Hex. (M5)
106-2
106-3
68P21523Y07
54B50936W06
Owner's Manual |/G/S
Label, Caution/Round
Packing
Method
View
aft
|
(ei)
2
(01)
Oy,
Sy
lh
Se,
Za:
ee
Ol
oh
Specifications
(Only
Difference)
NOTE: Refer to the Service Manual - 3DE-7886R
(Part No. 68E26586S01) for description not
mentioned in this manual.
<GENERAL >
Power
Output
(T-H.D.
10%)
/Impedance
oo...
eseeeeees
ete
eee
eee
eeteeseseccaeneenneneneneenenecetesenenenenentennannenentens
16W/ch/4ohm
NOTE
:
Due
to
Continuing
product
improvement,
specifications
and
designs
are
subject
to
change
without
notice.

for
description
not
mentioned
in
this
manual.
CD
-
LSI
P.W.Board
(Foil
Side
View)
3DE - 7887FR
Parts
Layout
on
PW.Boards
and
Wiring
Diagram
1
(3/4)
(Only
Difference)
NOTE
:
Refer
to
the
Service
Manual
-
3DE-7886R
(Part
No.68E26586S01)
2
%
Changed
3DE-7887R
Gray
Color
Pattern
:Component
Side
Pattern
four
Blue
Color
Pattern
:Foil
Side
Pattern

3DE-7887R
Schematic
Diagram
(4/4)(Only
Difference)
NOTE: Refer to the Service Manual - 3DE-7886R
(Part No.68E26586S01)for description not
mentioned in this manual.
CD-LS] P.W.Board
22P
C2129
E2104 10/10
0.027
R2103 47K
1€2102
TA2066F
E2105 4.7/20
5
R2115 C2124
10K
R2104 100K
1€2101
TC9296AF
u
PL
«Changed 3DE-7887R

3DE-7887R
Electrical Parts List (Only Difference)
NOTE : For the parts not mentioned, refer to the Service
Manual for 3DE-7886R (Part No. 68E26586S01).
[Model _] 3DE-7886R 3DE-7887R
No.
Main P.W.Board
IC's
1C205
]51792001F21
[XRA4560F
BASSGOF-ED
Ic301-«
[51T85153Wo1
=
|
TDA7384 TDA7386
Capacitors
23S75372W12 4 0.33pF / SOV CAP,AD R33-1H -R2
23S75372W15 a 1pF / SOV CAP,ELY 1R0-tH = -H2
23875372W12 : 0,33yF / SOV CAP,AD R33-1H -R2
23S75372W12 : 0.33pF / 50V CAP,AD R33-1H -R2
23S75372W12 : 0.33pF / SOV CAP,AD R33-1H -R2
CD-LSI_P.W.Board
Capacitor
; ist 7 7
Miscellaneous
01V84800W95 Assy., Loading Motor (7V-370mA) l01Vva4900wn0t Assy., Loading Motor (7V-370mA)
01V84800W95 Assy., Tray Motor (7V-370mA) 01V84800W94 Assy., Tray Motor (7V-370mA)

Exploded
View
(Cabinet)
(1/2)
(Only
Difference)
NOTE:
Refer
to
the
Service
Manual
+
3DE-7886R
(Part
No.
68E26586S01)
for
description
not
mentioned
in
this
manual.
3% Changed 3DE-7887R
(43)
=
Cabinet
Assembly
Parts
List
(Only
Difference)
NOTE
:
For
the
parts
not
mentioned,
refer
to
the
Service
Manual
for
3DE-7886R
(PartNo.
68E26586S01).
|
Model
_|
3DE-7886R
3DE-7887R
Sees
Ri
Fane
|
Deen
Pee
TO
No.
1
-A
101V11600Y13
Assy.,
Nose
Unit
-A
]01V24900Y61
Assy.,
Nose
Unit
Screw, Transport (M3X34.3)
Screw, Transport (M3X34.3)
3D
Deck
Mechanism,
DS44L01A
-
3D
Deck
Mechanism,
DS44L01A
16
1-C
JO3A48066W02
2-E
181D91137W01
5-B
]13D80970W07
‘{Assy.,
Nosepiece
5-B
113D80970W16_
JAssy.;
Nosepiece
3DE-7887R

3DE-7887R
CD Deck Mechanism Assembly Parts List
fete esa eee
et
03894385F 19 Screw, Pan Nylok (M2X2.5)
O7A81784W01 —‘[Bracket, Rear Corner
O1B81195W01 |Assy., Riv. Lever PTG
04B41345P22 |Washer, Lock (M2.6)
04B41345P05 |Washer, Lock (M3.5)
NOTE:Parts without part number are not SUD plied.
bec Mi aa]
ae
47A31658W01 {Shaft, Arm
41A32137W01 {Spring, Disc Guide
45A80908W01 [Lever, Drive Lock
45A80922W01 jLever, Drive Lock (B)
75C80020W01 |Damper, DPH2
04B41345P02
O1A81188W01
45A80903W01
43B80926W01
41B81272W02
Washer, Lock (M1.7)
Assy., Riv. Bracket Tray
Arm, Magazine
Spacer, Disc
Spring, Coil
03S40014G82
01A81189W01
44B80916W01
03S40014G66
01V84900W37
Screw, W/Washer (M2X3.5)
Assy., Riv. Bracket Guide
Rack, Timing
Screw, W/Washer (M2X3.5)
Assy., Lead Screw
41B81272W07
41A81207W0t
01B81196W01
01A81172W01
47A80928W01
Spring, Coil
Spring, Arm Magazine
Assy., Riv. Bracket Roller Upper
Assy., Shaft Rolfer Upper
Roller, Disc Guide
03A91058W01
44A81241W01
03840014G86
47A50698W01
107A81236W01
Screw, Special (M2X3.4)
Gear, Middle
Screw, W/Washer (M2X7.5)
Shaft, Pick-Up
Bracket, Shaft
43A31616W01
04B41345P42
04840075G15
03S94385F07
43A81198W01
47A81245W01
07B81235W01
41B81272W09
03S94385F57
45A81239W01
Shaft, Screw Drive
Bracket, Rod Lifter
Spring, Coil
Screw, Pan Nylok (M1.7X3.5)
Lever, Switch
, Lock (M1.2)
Washer (M3.6)
Screw, Pan Nylok (M2X2)
45A80863W01
41B81272W03
01C81197W01
01A81249W01
01A81173W01
Slide, Eject Magazine
Spring, Coil
Assy., Riv. Bracket Roller Under
Assy., Riv. Bracket RR
Shaft Roller Under
FPC Switch P.W.Board
Screw, W/Washer (M2X6)
Spring, Nut (A)
Spring, Nut (B)
Screw, Pan Nylok (M1.7X3)
44A80895W01
04B41345P13
41B81272W04
44A80893W01
41A80865W01
Gear, Roller Under
Washer, Lock (M1.7)
Coil
Middle
Spring, Arm Magazine
Bracket, FPC PD/LD
Screw, Pan (M2X2)
FPC Pick-Up P.W.Boar
Bracket, Clamper Top
Table, Clamper
03S94385F28
45A80885W01
45B80879W01
44B80880w01
44B80881W01
Screw, Pan Nylok (M1.7X2)
Arm, Eject Switch
Cam, Loading
Gear, Loading (A)
Gear, Loading (B)
Screw, Pan Nylok (M1.7X1.4)
Rod, Lifter
Cam, Clamper
Bracket, Guide Disc
Spring, Coil
44A80867W01
04B41345P04
41B81272W08
41A81382W01
03S894385F08
Riv. Bracket Arm Clamper
Coil
Coil
Coil
Riv. Damper FR
Gear, Idle (A)
Washer, Lock (M2.6)
Spring, Coil
Spring, Switch Magazine
Screw, Pan Nylok (M2X3)
04042091G11
07A81365W01
44A80868W01
44A80869W01
44A80870W01
Gear, Timing
Screw, Countersink Nylok (M2X3)
Rubber, Ring
Stopper, Shaft
Bracket
01A81823W01 Screw, Pan (M2X4)
No. : No.
07A90638W01
14A10981Y01
14A90285W01
14A11239Y01
Bracket,
Spacer,
Insulator,
Spacer,
Cover DIN
FPC
P.W.Board
Pick-Up

3DE-7887R
Exploded
View
(CD
Mechanism)
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434
MUNLPINE
SERVICE
MANUAL
FM/MW/LWI/RDS
In-Dash
CD
Changer
Receiver
COMPACT
DIGITAL AUDIO
@
For
the
CD
deck
mechanism
parts
(DS44L01A)
of
this
model,
refer
to
the
Service
Manual:
DS-L
SERIES
ADDENDUM
&
REVISED
(Part
No.
68E26409S01).
Z-ACTION MECHANISM
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7,
7
WNT
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WW
WT
FETS
WANE
VAM
WANT
WAST
WANT
WANT
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eD/E-7
8862

3DE-7886R
Contents
Packing Assembly Parts List ............c.ccccscsessssssesesesesesesenenesensessenesssenesssenenscseseeeesesesesessacneaeaesesesenesasssaaseegaeaeaeeeseaeanaes 3
Packing Method VieW .0......c.cccscssscsessceeeseseesessrssesesesasseeesesseeessenseaseeessenaeeesesate N sdasUeieasucesscaceventerusathers ovsertacernvanvs 3
Specifications 0... cscecsessecsssseeeesesesseenenensseesescesenenenssasasscacensssaeseaseneaeaesecsseneensaeasessesuenenseeneaeesecsnensatenenecsases we, 5
Extension: Cable ccsccsvisieccesiacicice coins ds scbeceeies esta eee te cea eed dh deta ee dets entangle Netan esavinasbeayer adeapoaneenceaeaet ae 6
S@rvo
MOMitor
seve
cob
sressivcectac
ches
veh
soon
dee
eben
RA
aaa
aole
aes
alee
OE
ea
anda
Ahi
cee
age
od
Geese
ea
7to9
Ais Hen POCRAUNSS ai.5-55 Sans Srespssansesielintesates rect tens that tee Acai Peace alot ed bs deviate Beste tettacestetes 10, 11
LCD Display ....... i ictus ou bn dvb cae nea wpe aheatee tas tNo lp vAgeaS esas car Eu a dev edd cbodl fab FustsaTegeutc uO bvCroueeG ued ecvatsueuek aeateevueeveuuneusaentegenevens 12
BOCK: Dieagrenir sasc.2. ccsee veces ez eorsetes Sietsticeicicanceash easandeapedienonceracanaseceas sadadaganebesastesgisnussqdsvesesvecdtdaateqdeaseusebess edenestepenee et 13
Tuiner
Schematic:
Dicigrany
vccs
seis
cecictece.
chesvescestane
tas
enntevecscesevecyeesueeunsed
Guan
scdeccesaig
sepsevacdiuvskespevevoasancouad
caveedetecttennseye
14
Parts
Layout
on
P.W.
Boards
and
Wiring
Diagram
(1/4)
adit
Giasbedoshee
tates
eens
ts
we
Pen
eee
ea.
15,
16
Parts
Layout
on
P.W.
Boards
and
Wiring
Diagram
(2/4)
........ccccccsceeeseteeseeneeneeeeseeeseneeseneesenaesecneeenseaseaeeaenees
17,
18
Parts
Layout
on
P.W.
Boards
and
Wiring
Diagram
(3/4)
........ccccssssseseseseesseeenesseseseeeeeeenseneneseeesseaseeeeseeecses
19,
20
Parts Layout on P.W. Boards and Wiring Diagram (4/4) .........cccccsssseseseseeseneessseceeseseneseesesenessssenesseesnneeneaessnes 21, 22
Schematic Diagram (1/4) .......ccsesescescessstssssssvsoessesecsssessessarssessusensessnsaseecassossesenscseseuseessseeneneaeueesseseueseessrsaes 23 to 25
Schematic Diagram (2/4) oc cescccccsscsssessssescsssscseseeseseeseessesecesecssssseneeecsenesseneeneseessenecsesseeeneeasneeenseneneneeeseerens 26 to 28
Schematic Diagram (3/4) ......ccceesseccssssesscecsessssessesescsesesssecsseesssecssssssssssessesessessuensessseneseassenecseaseesesaenseseenens 29 to 31
Schematic Diagram (4/4)... ecccssessessecsssseeeesessssesscsesseseeaseeesenseeecessnsssseeseecasenssssessenessentseessaseeecaraeseeaecateas 32 to 34
Description of IC Terminal ...........cccceccccsssssseeesssesesssesessseessenensseseessnesesensueesesssenenseseenenensseeenseersnsecaeseseenententtets 35, 36
Electrical Parts Vist. sscc2.cotscieciciteiietn eeu taniveled tied nat eles eed Mae eb cated ee 37 to 46
Exploded View (Cabinet) (1/2) ...........ssssscsssscsssencsssnsncanessneereassnnstenssnseeneseseensacasenennenenesiensseseenensseassoeneeusetononene 47, 48
Exploded View (Cabinet) (2/2) .......csscssesssesssssssssssssesesesseneseseseseenseescensesaeseeseeseeesessensasseseeneneneadieasansensensneneneanenaesnes 49
Cabinet Assembly Parts List ..........cceccssssecssssssessssssesesssscssaesesecseeessnecassessaecssseeeescsssessnesssassecessenessenenasecesorenensannas 49
Disassembly Instructions 2.0.0... cccecscsesssseesesessesseeeeesesceneeesesenseecsesesesscsesessesesseseasesesessaesesseneareeesessssensnensenenseeeseeeey 50
Semi-Conductor Lead Identifications ...........cccccsccsccsecerceseceeceeeeeeeseeeaeeeeeesseeseesesdeseeesseaseseseseeeseeeucesesteeeatesseeenseaee 51

3DE-7886R
Packing
Assembly
Parts
List
No.
O1175235W05
07B64552F01
15D71506W02
68P91508W77
68P91508W78
Description
Description
)
Assy., Kit (ISO
Nut, Hex. (M5)
Screw, Countersink (M5X8)
Stud, Bolt
Lit. 3V (CR2025)
Card Remocon
Bracket, Strap Receiver
Carrying, Case
Owner's Manual
Owner's Manual /G/S
75S50638W69
|Cushion,
Rubber
01D81040W10
36A11113W01
Rubber
(A)
03A11112W01
Hex.
(M5)
01T15394Y01
,
JASO-ISO
-
01T15359Y01
.,
!SO
Connector
Assy., Magazine DS
> yo
@ a?
Q?%
©
4

3DE-7886R
Specifications
<CD SECTION>
Sy Stennis ecchsac kes cebese at eee cera sts ase coud eaten onawovdeene hud gusaeg aa genevezdenevaaneteasys Optical (Compact Disc System)
Quantizing Bit NUMDCE oo. c ee ccecsceeeeeeeeeeeeteeeeceetseseesaeseeseeesecsesececsessssecasesecsseguesesnasensenssesgensnesd 16bit Linear system
CHANMEISS ca geciteswcchex iaccssepdecondaswasessceagtevenneeneadssetehtuntess ounhtecteetenedceea das cuebeyasadanee ccadbuens di dvuwa isons coseigesarasacevasiees 2 Channels
Channel Balance (1kHz)
Distortion: €4KIZ): © sss.ssessss ccesssescaeasstestvlssectictestesvadssesacectaedaceci. secaeusaecuscoesseasesuer sasiledacheceneasgéecdvi ceveacostareatescotiiesdaartare
Frequency Response (Ref. 1KHZ) oo... cscescsesccsssesesscsesscsessnecsessecseseesnecssseesssaecessesseseneeessssesseseseseneees 17Hz : O+3dB
127Hz : O2dB
10.007kHz : O+2dB
19.997kHz : 0+4dB
SIN Patios <x sinwecscodscvesedencnseccicestes hele canteen cee sectibchet cd eae edt inde Seca Ganec deaeslbies Seduced eee choices erent eles 85dB
Separation (lk 2Z) ich estusitel cede Mh tee. senaie h iatee tiie teats sdigiees obatcsesdesthsbevavusch eeth catnamecdudusess seaveveautesthavtvay ne 55dB
De-Emphasis:(Refs UKIIZ):: . cvccccscceces dabesacecusigutis svasivssnsseeveosadGarededsaventaro slices scanetndeasuatesctdesdslasestéseainigten 4kHz : -20+3dB
16kHz : -20+3dB
<FM RADIO >
Intermediate Frequency. —.s.:....:.cscsceciclcscasseensccdeeguescsacseseosasscebassaesbiaiisissdadssadedecdscsgqcecsgentavediaeetedaviocatoass 10.7 £0. 1MHz
Frequency: Range: . srccsctedstistsscccdvasssctesasscartarsdbeacecvee esesesivseedunhseear adlbesemesesevnetened tent eetriondes ties 87.5 ~108MHz
Usable Sensitivity (Mono, 30dB S/N, at 98.1MHZ) oo. cece cee eeseeeeeseatnesenesenesaeeaesenetesieccesersessesieeaesseteaee 17.2dBf
-30B Limiting Sensitivity (at 9B-1MHZ) ..c....cs ccc ccscuevecensseeetestveenescsanctveesestsedsessesireetsisasasbssnadhareadesbencencutes 19.2dBf
Residual Noise (Ref. 400HZ, at 98.1MHZ) ou... ceeessesseceeseeseenseeeeeeeseessenseeseeueesaaeeesaeesessaecneseaeseseeaeessaesaeass 25+8dB
S/N Ratio. (Stereo; at 98. 1MHZ):. caccscctecccccaceilcs ssaoesseccebecvea dens caceupcatesscodoecene debdbasbsabebonacadveboansaatisandsaaedeuiedeneaye 56dB
Image Rejection (at 106.1MHZ) oi... ecesceeeccessersseceeeesesceeseresesesssesesesesesesssaseessacsaseeecssseseasenssseesssenssanenesesensaesass 40dB
IF Rejection: (at:90.1MHZ)) .c.cstesc steed inte weeetinseeeicantidnicastedtifeeiitic cain dation bai iintintiate ails 60dB
Distortion. (Input: GOdB j7;at 9BAMAZ) sessissccgsecsevcoscasessensestescncegessostcteth cnet saccnstansenuedecacastecasasteusscatanestavessnecteracedace® 1%
Frequency Response (Ref. 400HZ) oo... ceeccccsesscseeseteereessneesecseesesecseseceeseesecsessessesaeesessenesiseecneeneasaees 100Hz : O3dB
10kHz : -12+3dB
Stereo Separation (Kz atS8. IME Z). «si ieissnscncrsvnvancstecctosstabi chantucsdisesebvcieanttealessbenth ahs Narl oo Mhaed Siianban deta 20dB
PS Sensitivity (at 98.1MHz) 36.2dBf
<MW RADIO >
Intermediate Frequency. cicissoitesiks Geiscegnesctsicceds soegetentivt exseyerdbandaceduetteldvet besssbibeasate sect sten uous eweus ear eegieled ted 450kHz
Frequency Range: « nisiit ian al al sidieieatesied daetinnsin wine canianietniaie nc eae es 531 ~1,602kHz
Usable Sensitivity (2OdB S/N, at Q9QKHZ) oo. cece esse eecesneseseeesesnecaesseceesaeesseeeesaeesaesaeseessecaveesaesaesateeeeeasenssnes 36dB
S/N |Ratio (AtQ99KHZ).” csccssccesessieteceidieted tecctossoreecettars Hastseantessbontaned abt gg betuceattiance Aaheaeledananveuben 44dB
Image: Rejection (at'1 ,4O4KHZ) ccccescccsicesaseocesssssadeneeddcoss vans csdaaseasasedeoevaccanvincscsaFasdasedaloacrateastansenseaueaataunatersnens 50dB
IF Rejection (at 603kHz) 60dB
Distortion (at 999kHz) 1.5%
Frequency Response (Ref. 400HZ, at 999KHZ) oo... ccc cece seecscsscssserecsecsesnessecsessenesneeessaseensnases 100Hz : -34dB
4kHz : -12+6, -12dB

3DE-7886R
<LW RADIO >
Intermediate
Frequency
—
..ceecesecessssssessesesesseeneseeneeseesesesearensetsnsesnensseseananensnearenessseaticssanascesesenanerscgnannaenegensnatas
450kHz
Frequency
RANG@
....scssssssecssecssssssseeesessnssnieesessssescesnessennsecsnccesnenacenscnarccsconsennacanscascescnnucanannaneensneagensets
153~281kHz
Usable
Sensitivity
(20dB
S/N,
at
216KHZ)
....cesscscsesseesseeseesseeesnessessneesensnneesnesnscensenacauetnaceneconseansnneressseessnneeseanactecs
42dB
SIN
Ratio
(at
21GKHZ)
.eeceeseessessesessesesseesssneesessnesesensencsussueesessessnenvensennecsuseasessnariecarsassansasencoscoasessnnennstesessestts
42dB
Distortion
(at
21GKHZ)
oo...
essescsssessescesesecseeneseeseenenscstssnensseenensseseanesnesscaeerscncnstaneasensnsesscenessasenenenncnngensnstgeeteeeesents
1.5%
Frequency
Response
(Ref.
400HZ,
at
216KHZ)
-.......esssessssssseeeseennnesrnrennneeereessteerecssecetessnennnsstteatety
100Hz
:
-34dB
<GENERAL >
Power
SUPPIY
...sesccseecessessesetsessessscsescaneseenscnenesnseneeseaesnssscseevansessenueescaacansasencansansaresesacaseeseecisasascnsansenanenntetts
DC14.4V
Power
Output
(T.H.D.
10%)
Impedance
—
.....eeeecsecesseseeneeessteesessneseenecneeneensassasensaerinesssnssueavescaranesennnys
14W/ch/4ohm
Pre
Output/IMpedance
.o....seessecsecsesseessssseseesnestseaseerenseseearesesseessesnsaneasensacansnuceaconecasenscansaccncanenesnssey
snes
1.7V/10Kohm
S@MICONAUCIOS
—
oaceeececsscesceccentceneeeeeseesateneessaessueeeeteeeaeeesgatuseneneae
28IC's,
52Transistors,
25Diodes,
14Zener
Diodes
Dimensions
(W
XH
XD)
ceececessssssesessesessescsesescenesenesesasaseneacacsesessensessseneseneneaneneeeneasanasy
Chassis
:
178
X50
X153mm
Nose : 170 X46 X18mm
WOIgNt
—..ccessesccecsesessssvonsssesssconsessnsssnscensnessserneennvecrssesssennsnssnecanscannsnssasennserasestascuasaceseceuseconccnssenanesnassenasenysenansegssents
1.8kg
NOTE
:
Due
to
Continuing
product
improvement,
specifications
and
designs
are
subject
to
change
without
notice.

3DE-7886R
Extension Cable
@ When testing the operating status of the model 3DE-7886R, connect an Extension Cable as shown
in the figure below.
Extension Cable (01V26025S01)
DS-L Mechanism (Top Side)
Main P.W.Board (Foil Side)
Black Tape
Photo Sensor (PT601, 602)
3 Main P.W.Board (Top Side)
NOTE : After connecting the Extension Cable, cover the PT601, 602 on the Main P.W.Board using such a
black tape etc., so the light would not hit. (Using the photo sensor supplied in the Extension Cable. )
When removing the Extension Cable, remove always the black tape, etc.

Servo
Monitor
(Part
No.
01E20845S01)
|. Purpose
DS-L
mechanism
built-in
3DE-7886R
performs
digital
signal
processing
in
the
insideof
Digital
Servo
LSI
and
the
outside
alignment
circuit
builds
in
to
this
Digital
Servo
LSI
and
each
alignments
are
automatic.
This
DT
Mech.
Servo
Monitor
is
jig
for
the
automatic
alignment
circuitry.
Please
refer
to
the
following
list
for
the
reference;
4. LED indicates the alignment.
2. Diagnosis of automatic alignment.
3. LED indicates a failure item for easy failure analysis of servo circuitry.
External View
Wire
SCP eees
me | ome | tse | ca [oni | soe
% For this digital servo LSI, no adjustment was made.
MMAPNE LPS VALUE
* The numbers of the automatic alignment sequence.
Il. Connection Points and Connection Method
Main P.W.Board
{Component Side)
DS-L Mechanism
(DS44L01A)
BLK (GND)
Extension Cable (01V26025S01)
NOTE : Refer to the Extension Cable (P. 6) .
BLU (CLOCK)
GRN (LATCH)
YEL (DATA)
toovo —
MUM,APNE
LPS VALUE
Connect each of the wires to the Test point as illustrated in the diagram.
* Be very careful not to shorts the test points since they are located close together.
* DT Mech. Servo Monitor can be used for the DS-L mechanism.
3DE-7886F

3DE-7886R |
Ill. Operating Specifications
The
automatic
adjustment
operations
of
the
3DE-7886R
are
performed
by
output
of
the
commands
of
the
various
-adjustment
items
from
the
main
microprocessor.
Adjustments
are
performed
in
response
to
these
commands
by
the
digital
servo
LSI.
This
servo
monitor
jig
receives
the
signal
returned
to
the
main
microprocessor
from
the
digital
servo
LSI
and
causes
the
LED
to
light
or
go
off.
The
adjustment
condition
(of
either
completed
or
not
yet
completed)
of
the
various
adjustment
items
can
be
checked
using
the
lighting
condition
of
this
LED.
The
following
test
discs
are
required
for
the
good/fault
judgment:
1. A-BEX TCD-721 (6th track - 1.2mm) : Scratch test disc
2. A-BEX TCD-782 : Signal test disc
1.
When
a
LED
other
than
FAGC
or
TAGC
lights,
perform
the
fault
causation
analysis
using
the
fault
diagnosis
chart
according
to
the
LED indication.
2.
When
only
the
FAGC
or
TAGC
LED
turn
on
a
lights
(indicating
that
the
focus
/
tracking
fine
gain
adjustment
is
not
completed)
,
perform
the
focus
/
tracking
servo
gain
adjustment.
If
the
value
is
within
the
specification,
the
adjustment
is
normal.
i)
LED
indications
Lit:
Fault
Unit
:
OK
Adjustment
}(
ED
Name]
Adjustment
Order
Contents
Order
AOC2
Tracking
offset
Corrects
the
tracking
error
value
as an
offset.
adjustment
1
AOCi
Focus
offset
Corrects
the
focus
error
value as
an
offset.
adjustment
ee
|
eee
in
ormaarecacy
ABC2
Tracking
balance
Corrects
the
average
value
of
the
tracking
error
as a
balance
adjustment
value.
ABC1
Focus
balance
Correct
until
the
RF
level
becomes
maximum.
adjustment
FAGC
Focus
fine
gain
Introduces
external
interference
and
adjusts
the
focus
gain
to
adjustment
an
appropriate
value.
TAGC
Tracking
fine
gain
|
Introduces
extemal
interference
and
adjusts
the
tracking
adjustment
gain
to
an
appropriate
value.
A. RF Signai Level Measurement
The main beam of the returning light is received by the photodiode and the output voltage is obtained by current-voltage
conversion of A+B+C+D.
1. Block Diagram
Sample player Oscilloscope
2. Measurement Method
(a). Connect the ground terminal of the oscilloscope VRO (TA2066F (1C2102), pin 20) and measure the RFO signa!
(of TA2ZO66F (102102), pin 21).
(b). Play the first track of the measurement disc A-BEX TCD-782.
(c). Read the peak-to-peak value of the waveform.
Specification: 1.2+0.3, -0.2V
* When the value is outside of the specification (i.e., not good), check TA2066F (1C2102) and the pick-up.
Measurements
B. Jitter Measurement
The standard deviation of the pulse width when a trigger is applied to the rising edge of the 3T component of the RF signal.
1. Block Diagram
Sample player Jitter meter
2. Measurement Method
(a). Connect the ground terminal of the jitter meter to VRO (TA2066F (C2102), pin 20) and measure the RFO signal
(of TA2Z066F (C2102), pin 21).
(b). Play the first track of the measurement disc A-BEX TCD-782.
(c). Read the indicated value of the jitter meter.
Specification: 25nS or less
* When the’ value is outside of the specification, check TA2066F (IC2102) and the pick-up.

| 3DE-7886R
C.
Focus
Servo
Gain
Measurement
Measure
the
focus
servo
open
loop
gain
in
the
servo-on
(closed
loop)
condition.
1. Block Diagram
Sample
player
Oscillator
and
oscilloscope
2.
Measurement
Method
using
an
Oscillator
and
an
Oscilloscope
(a).
(b).
(c).
3. Connection (Example)
Connect
OSC
output
to
resistor
for
gain
measurement
(100
ohm).
(Connect
a
servo
driver
side
to
positive
side.)
osc
Connect
CH1
of
oscilloscope
to
a
servo
driver
side
of
resistor
for
gain
measurement
(100
ohm).
(Connect
negative
side
with
GND
of
set.)
Connect
CH2
of
oscilloscope
to
TC9296AF
(C2101)
side
of
resistor
for
gain
measurement
(100
ohm).
(Connect
negative
side
with
GND
of
set.)
Play
back
the
eighth
track
of
A-BEX
TCD-782
disc
for
measurement.
(No
sound
recording
track)
Output
frequency
(1.2
kHz,
200
mVP-P)
from
OSC
and
compare
the
amplitude
of
CH1
and
CH2
of
oscilloscope
and
convert
into
dB.
Gain
(dB)
=20
Log
(CH2/CH1)
Specification:
Gain
Normal
if
it
is
within
0+3dB.
*
If
the
specificaiton
is
out
(NG),
TC9296AF
(IC2101)
(Digital Servo LS!) is malfunction.
NOTE:
AC
voltmeter
is
available
to
measurement.
Oscilloscope or
AC voltmeter
=, Common with the
ground of the set
TC9296AF
(IC2101)
#51
FOO
BA6791FP
(C2103)
* FOO: Focus drive output
D.
Tracking
Servo
Gain
Measurement
Measure
the
tracking
servo
open
loop
gain
in
the
servo-on
(closed
loop)
condition.
1. Block Diagram
Sampie player Oscillator and oscilloscope
2.
Measurement
Method
using
Oscillator
and
an
Oscilloscope
Connect
OSC
output
to
resistor
for
gain
measurement
(100
ohm).
‘
(Connect
a
servo
driver
side
to
positive
side.)
SGanneetion
(EXaMprS)
Connect
CH1
of
oscilloscope
to
a
servo
driver
side
of
resistor
for
gain
measurement
(100
ohm).
(Connect negative side with GND of set.)
Osc
Oscilloscope or
AC voltmeter
Connect
CH2
of
oscilloscope
to
TC9296AF
(C2101)
side
of
resistor for gain measurement (100 ohm).
Play
back
the
eighth
track
of
A-BEX
TCD-782
disc
for
measurement.
(No
sound
recording
track)
A.
common
with
the
ground of the set
BA6791FP (iC2103)
Output frequency (1 kHz, 50 mVP-P) from OSC
and
compare
the
amplitude
of
CH1
and
CH2
of
oscilloscope
and convert into dB.
Gain (dB) =20 Log (CH2/CH1)
Specification : Gain Normal if it is within 030B.
* If the specificaiton is out (NG), TC9296AF (C2101)
(Digital Servo LS!) is malfunction.
NOTE: AC voltmeter is available to measurement.
TC9296AF
(C2101) #52 TRO
* TRO: Tracking drive output

3DE-7886R |
Adjustment Procedures
1. FM SECTION
(1) Dummy Antenna Circuit
+ t0ohm 450hm_—s!
I
Input | <> 600hm ‘Output
i '
Wo te ote AA 2) a ee 1
(2) Connections For 50 ohm FM Signal Generator Figure 1
Antenna Receptacle DC Volt Meter
FM Dummy
Antenna
‘igure 2
Oscilloscope
FM Dummy
Antenna
FM Signal Generator Unit Under Test
Figure 3
FM Stereo Modulator FM Signal Generator
Antenna
Receptacle
FM Dummy
Antenna
Unit Under Test
(3) Control Settings
Power SWitCh vc eeccecssecsessecsssecsesesseeees ON Bass Control oo. eeeseeeeeees Center Position
Fader Control vtec Center Position Band: Switch sissscscceitansschitectcessceceescctiseet FM
Balance Control ose Center Position OMORS? etieisecsitiatictditentausecetennds OFF
Treble Control oceans Center Position
~10-—

(4)
Adjustment
Procedures
Test
Point
/
Step
Description
Connection
|
Signal
Generator
|
Dial
Control}
P.C.Board
Adjustment
Coordinates
rae
—
T.P.003
IF
:
98.1MHz,
72dBy
(4-E)
:
8.1
Mi
u
A
4
2
1
Adjustment
Figure
2
(Mod.
OFF)
9
Hz
TP.004
Adjust
L003
to
-35
to
-45mV
(4-E)
-
98.1MHz,
46d!
i
S-Meter
; :
=stiiaaeia
T.P.005
'
2
annucirciant
Figure
3
(Mod.
400Hz,
98.1MHz
(4-E)
Adjust
VR003
to
340.1V.
~
Dev.
40kHz)
ma!
1
4
3
Stereo
Blend
Fiqure
4
pecs
tg
98.1MHz
Speaker
Adjust
VR004
for
Lch
and
Rch
output
Adjustment
(Lch)
9
Hi
:
:
Output
level
difference
to
be
8+2dB.
Lch only)
rc
=
—-
at.
98.1MHz,
46dBu
;
é
an
Figure
4
(Stereo,
1kHz,
98.4MHz
pein
aaa
same
adjustment
under
step
Wu
Rch
only)
tp
:
|
ee aa
NOTE
:
For
the
Test
Points
(T.P.003~T.P.005),
refer
to
the
Parts
Layout
on
P.W.Boards
and
Wiring
Diagram.
-11-
3DE-7886R
|
i
j
i
5
3
i