Pioneer XR-P74OM User manual

Service
Manual
/oo.
^
-5
-8
-9
(v)
proNeerl"
Tlp Artot Entertaiment
STEREO
MULTI-PLAY
CDCASSETTE
DECK
RECEIVER
x
xR.P7
-P64olul
-P34()M 4()M
CDCASSETTE
DECK
RECEIVER
ORDERNO.
RRV1O23
R
R
r;
o
o
o
4
4
4
7
6
3
P
P
P
I
I
I
STEREO
XR
XR
XR
r
CONTENTS
CHAPTER
11.8 PARTS
LIST
FORPACKING
AND
EXPLODED
VTEWS
..........
..............
1
- 38
1.9 PCBPARTS
LIST ... 1-47
CHAPTER
2
2.1 PACKING
ANDEXPLODED
VIEWS , . 2-2
2.2 SCHEMATIC
AND
PCBCONNECTION
DfAGRAMS .........2-16
-tl
-20
6_EB
q_f__l:iio
:tr)lo6a-
o6tb
.68
it a5
THIS
MANUAL
IS
APPLICABLE
TO
THEFOLLOWING
IVIODEL(SI
ANDTYPE(S}.
Typ. Modol Powor Roquhemant Tha vohago cln ba convanod
bylh. folowlng m.thod.
xR-P740M xR-P740 xR-P640M XR-P6/|{) xR-P3/l(,MxR'P340
SD ooooooAC110V
t120- 127V I
220V
t240V With the voltago solector
ooo o AC240V
KU oAC120V
KC oAC120V
PIONEER
ELECTRONIC
CORPORATION 4,j,Mesuro
I chome,Mesuro
ku,rokyo1s3
Japan
PIONEER
ELECTRONICS
SERVTCElNC. pO Box1760,
LongBea;h,CatrJornra
90801U.S.A.
PDNEERELECTROI{ICSOFCANAOA,tNC.3O0A
slareparkwayN.4arkham,OntanoL3BOp2Canada
PIONEER
ELECTROT{IC
[EUROPE]
N.V Haven
jO87
Keetberataan
t,9j2O Met;ete.
Betorurn
PIoNEEB
ELEcrRoNlcs AusrBALla Pw. LTD. r78 r84Boundary
ioad B aesroe.vr.fo.ra
3195Ausrra aTLL
o P|oNEER
ELECTRONTC
CORPORATTON
1993. r DFF[03]
580,99r1
DEC.1993 Printed
inJapan

XR-P74()M, XR-P64()M, XR-P34()M
xR-P7 &, XR-pOaO, XR-P34()
CHAPTER
1
1.1SAFETYINFORMATION
This service manual is intended for quallfled service technicians; lt ls not meant tor the casual
do-it-yourselfer.Oualifiedtechnicians have the necessarytest equiprnentand tools, and have been
trainedto properly
andsafelyrepair
complex
products
suchasthose
coveredbythis manual.
lmproperly
performed
repairscanadversely
aftoctths.satetyand retiability
of the productand mayvoid
the warranty,
Ityou arenot qualified
to pertorm
ths repair
ot thls productproperly
andsafely,
youshould
notrisktryingto do so andreterthe repairto a qualllled
servlcetechniclan.
WARNING
Leadin 3oldor
us6d in thlr ptoducl ir liltod by th. Celifornia
Hcalth
and Wcltaroagoncy
aa a known .sproductiva
toxicantwhich
may cause birth defoct. or othor r.prcductive hetm (Calllo.nia Hoelth& Saf.ty Cod., Sectlon 25249.S).
Whsn s.rvicing o. handling circuit board. end oth.. compon.ht! which contein l..d in .old.r, .void unprotoctod !kin contact with
the 3oldor.Alao,when aold.rlng do not inhala eny amok. or lurnar produc.d.
NOTICE
(FOR
CANADIAN
MODEL
ONLY)
Fuse
symbols
€S (last
operatingfuse)and/or €* (slow
operatingfuse)on PCBindicate
thatreplacement
parts
must
beoladenticaldesignation.
REMARQUE
(POUR
MODELE
CANADIEN
SEULEMENT)
Lessymboles
de lusible
€F (fusible
detyperapide)evou -E8- (tusible
detypelent)
surCCIindiquent
que
les
pidces
deremDlacement
doiventavoirlamCme
d€sionation.
(FO
RUSAMODEL
ONLY)
l.SAFETYPRECAUTIONS
Thefollowing
check shouldl)e
performed
for the
continued
protectionof the customer and service
technician.
LEAKAGE
CURRENTCHECK
Measure
leakage
currentto a known earth
ground
(water pipe,
conduit,etc.) by connecting
a leakage
current tester such as Simpson Model 229 2 or
equivalentbetweenthe
earth
ground
andallexposed
metal
parts
of theappliance
linput/output
terminals,
screwheads,
metal
overlays,
controlshaft,etc.).Plug
the
AC Iine
cordol the
appliancedirectlyinro
a 120V
AC6OHz outlet
andturn
the
ACpower
switchon.
Any
current
measured
must not exceed
O.5mA.
ANY MEASUREMENTS
NOT WITHIN THE LIMITS
OUTLINED ABOVE ARE INDICATIVE OF A PO,
TENTIAL SHOCK HAZARD AND MUST BE COR-
RECTEDBEFORERETURNING
THEAPPLIANCETO
THE CUSTOMER.
2. PRODUCT SAFETY NOTICE
Many electricaland mechanical
parts
in
the appli-
ancehavesoecialsafetvrelatedcharacteristics.These
areoften not evident
from visual
inspectionnor the
protection
affordedby them necessarily can be ob-
tained
byusing
replacementcomponentsrated
forvol-
tage, wattage, etc. Replacement
parts which have
these specaalsafety characteristicsare identifiedin
this ServiceManual.
Elect.ical
components having such features are
identilied
bymarking
with a A,
ontheschematicsand
on the parts list in this ServiceManual.
The
use
ofa
substitutereplacementcomponent
which
dosenot have
thesamesafetycharacteristics
asthe
PIONEER
recommendedreDlacement
one. shown in
the
parts
listinthisService
Manual,may
createshock,
fire,
or other hazards.
ProductSafety is conlinuously
under
review and
new instructionsare issued
trom time to time. For
the latest intormation,alwavs consult the current
PIONEERService
Manual. A subscription to, or ad-
ditional
copiesol, PIONEERService
Manual
may be
obtainedat a nominal charge
from PIONEER.
0 smA
Test
all
plug reversed
(Using AC adaprer
plug as requfed]
AC Leakage
Tesl

XR-P74OM, XR-P64OM, XR-P34OM
xR-P7 N, XR-P64(), XR-P34()
(FOR
EUROPEANMODELONLY}
AVATTAESSA JA SUOJALUKITUS
OHITETTAESSA OL€T ALTTIINA
NAKYMATToMALLE LASERSATEILYLLE
ALA KATSOSATEESEEN
USYNIIG LASEESTRALINGVED ABNING
NABSIKKERHEDSAFBRYDEFE
ER
UDE
AF
FUNKTION
UNDGA UDSAETTELSEFoR
STFALING
OSYNLIGLASEASTRAININGNAB DENNA
D€L AB oPPNAo ocH SPABaEN
ABURKOPPLAO AETRAKTAEJSTRALEN
OEVICEINCLUOESLASER
OIODE
WHICH
EMITS INVISIBLEINFRABEDBADIATION
WI]ICHIS
DANGEROUS
TO
EYES
THEREIS
AWARNINGSIGNACCOROINGTOPICTURE
] INSIOETHE
DEVICECLOSE
TO
THELASER
DtooE.
THIS PIONEERAPPANATUS
CONTAINS
LASEROF CLASS ].
SERVICINGOPERATIONOF
THE
APPARATUS
SI-IOULDBE DONE BY A SPECIALLY
INSTRUCTED
PERSON
MAXIMUM
OUTPUT
POWER:
5 mw
WAVELENGTH:78O785nm
LABET
CHECK
tr<
Referto page
1
-29.
FOR
CDSINGLE
FORCD MULTI
1.LaserInterlockMechanism
Th6ON/OFF
{ON
: low level,OFF: highlev€l)
statusof 3601 (LPS1}
andS602 (LPS2)
switches for detectingrhe loading
stat€ isdetected
by the systern microprocessor,
andthe designprevents laserdiode
oscillation
exceptwhenborhswitches
(LPS1
andLPS2IareON
{low
levelo. clampgd
state).
Thus,interlockwillno longer
lunctionit switches360l {LPSI)
and
S602 (LPS2) ared€liberat€lv
shorted.
The int€rlockalsodoes not oDerat€in the t€st mode*.
Laser
diodeoscillationwill continue.if pin 1 ot M51593FP
{lC101)
on the PRE-AMP
EOARDassemblyloaded on pickup ass€mblyare
connectedto GNO,
orpin 19isconnectedto low level
{ON),
orelse
theterminal6
of O1O1areshortedto each
otherlfaultcondition).
2.When
thecoverisopened
withtheservomechanism
block
remov€d
and turn€d over, closeviewing of the obj€ctive lenswith the nakod
eyewillcaus€
€xposureto a Class1laserbeam.
CAUTION
[{vrsr8r,ErAsER
RA0tATtot{
wHHrloPtN.
AVOIO
TXPOSUR€
T0EEAM aRw1o23
CLASS1
LASER
PRODUCT
1.LaserInterlockMechanism
The posilion
of the switch (5601)for detectingloadingsrareis
detecred by the system microprocessor,and the design prevents
laserdiodeoscillationwhen the switch (5601) is not on CLMP
terminalside
{CLMP
signalisOFForhigh
level,}.
Thus,
the interlockwill no longer
functionif rhe switch (5601)is
deliberately
setto CLMPterminal
side.
{low
level).
Theinterlockalso
doesnotfunctioninthetestmode*.
Laser
diodeoscillationwillcontinue,
if pin 1of M51593FP
(lC1O1)
onthe PRE-AMP
BOARDASSYmounted
onthepickup
assembty
is
connectedto GND,orpin19isconnected
to low level
(ON),
orelse
the terminals
of O1O1
areshortedto eachother
lfaultcondition).
2.Whenthecover
isopened,
close
viewing
of theobjectivelens
with
the nakedevewillcauseexoosureto a Class
1laserbeam.
ARW1021 ARW
1023
tr<
Referto page 1-29. |
-J

XR-P74()M, XR-P64()M, XR-P340M
xR-P7 Q, XR-P64(), XR-P3@
1.2SPEC|F|CATIONS
STEREO
CDCASSETTEDECKRECEIVER/STEREO
MULTI-PLAY CD CASSETIE DECK RECETVER:XR-
n 0 Ix3'P, &NU XR-Pr6aO/XR-F6{!M/XR+AO/XR-
P3/('M
Ampliftcr scction
<XR-EiOlXR-E a0i/b
FRON|T
Continuou. Av.ng. Pow.r Oueqt i.70 W.ttro p.r
cfiannC,min.,
rt 8ohm. from 50H.rt with nomor.
th.n 196.. totrl hrrrf|onlc dirtortion,
Continuous
Power
Outout
{RMS}
................100
W+100W
(1
kHz.T.H.D.
'10%.
8O)
Peak
lMusic
Power.... ..........1050
W
REAR
Continuous
Power
Output
(RtvlS).................................
15W
(1
kHz.T.H.D.
10%,16
Ox2)
cf,]{TEn
ContinuousPower
Output
(RMS)......-..........................
15W
(1
kHz,T.H.D.
107o.16
Ox2)
<XR-P6,rc/XR-P6,lltM>
FRONT
Continuour Av.rlgr PowqrOu$ut i! 70W!tt. pcr
ch.nn.l, mln.,rt 8ohmr Lom 50HarE with no mor.
th.n t *.r totll h.rrnonic didortion.
Continuous
Power
Output
(RMSI
................
100W+1OOW
{1
kHz.T.H.D.1oyo.
8O}
Peak
MusicPower.... ...............950
W
REAR
ContinuousPower
Output
(RMS)
..........................
....15
W
(1
kHz.T.H.D.10%.
16Ox2)
<XR-P:,IO/XR-P3alll/b
FRONT
Condnuou. Avr g. Pow.r Oufprrti. 33W.ttr. p..
.h.nnal, min.,!t 8ohm.lrom 50HarE
with nomora
th.n I .ta.r tot l hlrrnonic di.tortlon.
ContinuousPower
Output
(RMS)
................._..50
W+50 W
(1
kHz,T.H.D.
1oYo,
I Ol
....................................500
w
CD Scction
Type................................Compact
discdigiralaudio
system
WowandFluttsr................................
Limitolm66suremont
G0.001%
W.PEAK)
or
less
(EIAJ)
Cassdte deck 3.ction
Systems
........................
-................
4track,2-channel
stereo
Heads.......................................
Record;ng/playbsck
headx1
Plavback
headx 1
Erasinghe6dx 1
Motor.....................................................
DCs6rvomotorx1
Tape
type..............TYPE|
(Normal)
tape/TYPEll(CrO2)
tap€
PeakMusicPower
FM/AM tun.r slstion
FMTunrrSoction
Frgqu€ncy
Range
(9
kHy'l0kHz
step)..............................7.5
MHz
to108MHz
AntennaInput ...75ohms unbalanced
Alli Tunce Scc.tlon
Frequency
Rang€
With10kHz
step..........................530
kHz
to1,700kHz
WithI kHz
st€p.............................531
kHz
to
1,602
kHz
Antenna.................... ...LoogAntenna
Miscellanaous
Power
Roquirements
Singapor€
model.......................226n'n40
V.50/60Hz
Othermode|
................1101t2G127l22O/240
V.
50/60Hz
Power
Consumption
(xR-P740lKR-p740M)
. .........444lw
(xR-P640r(R-P64oM). .........432
W
fiR-P3401(R-P340M
)
. .........276,W
Dimensions.....................260
W)
x
371.5
(H)
x295
{D)
mm
(XR-P74OAR-P74OMIXR-PAOAR.PAOM}
260
{W)
x310
(H)x
29S
(D)
mm
(xR-P340lXR_P340M)
Weight
(withour
packagel
(xR-P740t\,1r(R-p640M)
..........................................9.5
ko
(xn-p740lxn-pan0l
. ..................
....e.eii
rxR-P34oM) . . ....
..2.ari
(xR-p3401........ ..........0.2
ri

XR-P74OM, XR-P64OM, XR-P34OM
)(R-P7
Q. XR-P6@, XR-P34O
1.3
PANEL
FACILITIES
Thisrilustratron
shows
model
XR-P640.
RECEIVER
TheXR-P340/XB-P340fi/is1ot
eaurpped
w nthebutto4s
OF
a.
O) DOLBYSURROUND
ON/OFF
button
^ (XR-P640/XR-P6/OMonly)
(1)'
CENTER/REARbutton
_ {XR-P74|!/XR-P740M
only}
(? Display
€) REARLEVEL
(+,
-) buttons
^ IXR-P64|!/XR-P640M
only)
t3' CENTER/REARLEVEL
(+,
-l buttons
^ (XR-P74{I/XR-P740M
only}
Qt SURROUNDONbutton
^ (XR-P64O/XR-P6/rcMonly)
€)' CENTER
MODEbufton
_ (XR-P74{,/XR-PT/OMonly}
(t SURBOUNDOFFbutton
^ IXR-P6/t0/XR-P$oMonly)
Q)'m MODEbufton (XR-P740/XR-P740M
only)
G) INPUTBALANCEcontrol
^ (XR-P640/XR-P6/0Monly)
€)' BALANCE
(L,R)
control
_ (XR-P740/XR-P740M
only)
(, POWER
STANDBY/ON
swhch andSTANDBY
indicator
This
rs
rhe
switch
for
electfic
power.
ON: When set to the ON position,
oower is
suppliedandthe unitbecomesoperational.
STANDBY:When serto the STANDBYoosition.the
n'arn
power
tlow rs
cutandthe r,nrt
.s
no
longerfully
operational.
A minuteflow of
power
feeds
the,.inrtto
maintainoperation
^ readiness.
fiheSTANDBY
indicatorlights.)
(O Microphons iack (MlC)
(9) FUNCTION (TDEMO) button and indicators
Eachtimethisbuttonis
pressed,
thefunctionchanges
in the following
sequence
lThe seiocted
tlnction is
displayed
in
thedisplay
window
and
indicator.i:
- rUNEB -------+
rAPE -+ CD I
I vrDEo,/AJX <---------------
60
ND
02
03
04)
6b
@
f,
6A
09)
6
al)
6a
@
@
BANDbutton
VOLUME
control
FREO/STATIONbutton
MIG
LEVELcontrol
CLOCK/CLOCKADJbutton
WAKE-UP/REC
button
SOUNDFIELDOONTROLbuttons
(HALL.
D|SCO.MOVIE)
MEMORY
button
AUTOTUNING
button
MONObutton
TUNING
JOGknob
P.BASSbutton
ONE-TOUCHKARAOKEbufton
STWIDEbutton
(XR-P7/O/XR-P74OM/XR-P641)/
XR-P6/|t!M)
SURROUND& STWIDEbutton
(xR-P340/XR-P340M)
Hsadphones
iack(PHONES)
Manufactured under license frcm Dolby Labo?toies Ltcensing
DOLBY and the double-D symbol @ are trademarks ol Dolby
Labo
ta
to
n
es Lice
n
sing Carporatton.
1-5

XR-P74()M, XR-P621()M, XR-P34()M
xR-P7 &, XR-P64(), XR-P340
TAPEDECK
MULTI-PIAYCDPLAYER
CDPLAYER
TAPE
DECK
Q TAPE
Ica$etto door
q) TAPE
IEJECTsoction (A)
Q) TAPEll EJECT
s.ction (A )
(4) TAPEll cassctto
door
6 fnPt 1/2 soloctorbutton
@ DOLBY.NR
B/COFF
butron(XR-P74O/XR-
P?40Mand
XR-P6/0/XR-P640M)
Each
lime this button is pressed,DOLBY NB settlng
chanoesB*C*OFF.
@'oor--ev.
NRoN/OFF
button
(XR-P3/o/XR-
P3/0M
only)
Eachtime
thisbutton
ispressed,
DOLEY
NRsYstem
turns
ONandOFF.
CD Rec
pause button ( a ll )
tD aSe-S
(nuto Synchro Editing System)/GOPY
button
@ TAPEop6ration buttons
(PLAY< >, STOP
r, Fast << >> )
I Auto Function
Thismodel
is
equipped
wlth
"Auto
Functionoperatron'
so
whentheswitch
forPLAY/PAUSE,
DISCSELECTOR
1-6
BND.TAPE
1/2,
PLAY
(tape),
or EAND
is pressed,
the
functionswitchesautomatically.
Usethe
FUNCTION
button
toselect
thecomponent
connected
tothe
VIDEO/AUX
lN
iacks.since
AutoFunction
tsnoteftective
forthis.
NOTE:
The
luncton
cannotbeswlched
dunng
recatdng
andtape
copying.
PLAYERS
DISC
SELECTOR
buttons (1-6)
OPEN/EJECT
button
OPEN/CLOSE
button
STOPbutton(l)
PLAY/PAUSE
button { >/ll }
Manual/Track searchbutlons ( K< ' +<, >>
. >Dl )
Magazine slot door
Disctray
Dolby nolsercductionmanufacturedunder hcensefrom Dalbv
Laborctone
s Lrce
n
s
ing Car
pot
atto
n.
-DOLBY" and the double'D symbol ffi arc trademarksof
Dolby Laboratoties
Ltcensing
Carpatatrcn
CD
a
(2)
(3)
(4)
G)
(0.
I
-6

XR-P74()M, XR-P64()M, XR-P340M
xR-P7 N, XR-P640, XR-P34()
REMOTECONTROL
UN]T REMOTECONTROL
UNIT
O PowERbutron
@ Functionbutton (FUNCI
Each
timethis button
ispressed, thefunctionchangesin
the followingsequence:
+ TAPE
VIDEO/AUX
@TUNERBAND
bufton
TAPEop€rationbuttons
{SHIFT
TAPE1,56s1
11 >>, Play
< >,
Stopr, Rec
pause
a ll l
To operateTAPE l. pressthe desired deck operation
buttonwhile
pressing
SHIFTTAPE
l. (Excepttorthe
Rec
pause
a ll button)
ONE-TOUCHKABAOKE
button
(XR-P640/xR-P640M
only)
KARAOKEbutton (XR-P7II0/XR-P740M
onlyl
P.BASSbutton (Except
fot XR-PI|40/XR-
P340Ml
SFC
MODEbutton
TIMERcontrolbuttons (WAKE-UP,
SLEEP}
VOLUME
(-/+l buttons
Numberbuttons
These
buttonsareused
forselectingtrack
numbersola
CDandscanning
preset
stations.
CDoperation
buttons
{DISC,
Tracksearch
K< >>, Pause
ll,
Stopr, Play>, RND
(Randoml,
REP
(Repeatl,
PGM
(Programll
D0SURROUNDbutton
{XR-P640/XR-6/I0M
only}
REARLEVEL
(-/+) buttons
(Except
for XR-P34O/XR-P34{!M}
Testtone button {TESTI
(XR-P740/XR-P7'OM
onlyl
CENTERLEVEL
(-/+l buttons
(XR-P740/XR-P7'OM
only)
DCMODE
button
(XR-P740/XR-P7t[0M
only]
CEIITERMODEbutton
{XR-P740/XR-P7'l{)M
onlyl
,G)
@
@
@
6l
@
o
@
@
@
@
@
@

XR-P74()M, XR-P640M, XR-P34()M
xF|-P7 40, XR-P640, XR-P34()
1.4DISASSEMBLY
T CDMECHAASSYDIAGNOSISANDREPLACEMENT
1.Removethe cover.
2. OPENthe tray andlift the tray cap,pulling the bottom of the tray captoward you.After removingthe tray
cap,CLOSEthe tray.
3. Removethe VOL knob and2 screws
(BBZ30P080FZK)
holdingthe VR assyin place.
4. Removethe 3 screwsbetweenthe front Danelandthe chassis.
L/R sides:CBZ30P080FMC x2
Bottom side:BBZ30P080FZK x 1
5. Removethe leadwire from the cassettemechaassvfrom the chassis.
Screw:BBZ30P080FZK x I
6.Removethefront panel from thechassis
(watching
outfor the clawontheleft andright), andopenthe sideof
theAF CD assy.
(Referto Fig. 1)
NOTE:
Do not remove the rear panel and AF CD assyat this time.
AFCDAssy
Fig. I
Undertheseconditionsmost of the PCB diagnosis
and partsreplacementcanbeperformed.
I REMOVALOFAFCDASSY
1. Under the conditionsof the previousparagraph, removethe rear panelandA-FCD assy.
(Donot separatethe rear panelandAF CD assy.)
XR-P340M (except KU type)and XR P340 . . Betweenrear panelandchassis.
Screw:BBZ30P080FZK x2
XR-P740M, 740,640M, 640and XR-P340IWKU . . Betweenrear panelandtransframe.
Screw:BBZ30P080FZK x3
1-8

XR-P740M, XR-P640M, XR-P340M
xR-P740, XR-P64{J--,
XR-P34.o
1.5BLOCK
DIAGRAM
XR--P64O\I, XR-P640 ONLY
! -<""n
I
I
I
I
I
I
I
I
I
I
l:oorntl! )cup740M xR-P74o o.LY
I
30omv (XFI-P7401,( 7a0)
71nV (XR-P54O'{ E40) POAER AI'IP
BIJFFER CENTER
S SP OUT
ro TAPE
FRONT SP OUT
S VO-Lri€ B\TFFER REAR
rt I
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I
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lc21 03 c vo|-t.tiC
tc3301
MICMIX
tc2201
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XR-P740M XR-P740 otl-Y
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l--.o
l+-o
MUTE
AC
BLc)\IV
cooL Ir.rc
FAN
rcr501 1c3501
(/21 Q/2)
POWERAMP MODULE
SECTION
OUTPUT LEVEL DETECT
1-9

XR-P740M, XR-P64()M, XR-P340M
xR-P7 44, XR-P640, XR-P34()
a Pin
Function
of PowerAmo Module
Connector No. Name UO Description
cN7l01
+12V.
Mo+12Vseparatesystemstabilizedoutput
2UNREG 12 Unstabilized
powerinput for - 12V
3AC IACdetecrioninput:forpower
ON/OFFandMUTE.
4tzv o Stabilized
poweroutput for - 12V
5MUTE vo Mute externalinput; outputsintemal mut€conditions;cancelsforcedmute.
6REF,GND IGND Ior protectivecircuit; referenceGND for shortdetection
7BLOW IBLOW circuit extemal output; ON at :t0.5V or mo!e.
8REG.GND IReferenceGND for stabilized
powersource
9UNREG
+5 IUnstabilized
power
inputfor +5.6V
10 UNREG
+12 IUnstabilized
power
inputfor +12Vand
+12V.M
11 +5.6V o+5.6V stabilizedoutput
T2 +t2v o+ 12Vstabilizedoutput
cN7l02
1CIN ICentersignalinput
2S.GND ISignalinput GND; floating interior type
3srN ISurroundsignalinput
4OVERLOAD IShortdetectioninput for SurroundandCenterchannels
5+82 IPowersupply(+) for SurroundandCenterchannels
682 IPowersupply(-) for SurrcundandCenterchannels
7COUT oCenterspeakeroutput
8SOUT oSurroundspeakeroutput
cN7502
IREF.GND IReference
GND lor short detection
2L OUT oLeft speaker
output
3ROUT oRight speakeroutput
4FAN IForcedfan circuit input (LOW speed)
5+81 IPowersupply(*) for L/R channels
6B1 Power supply ( ) for L/R channels
7SHORT Shortdetection
input for I-./Rchannels
8LIN Left signalinput
9F. GND Signalinput GND; floating interior type
10 RIN Right signal
input

XR-P740M, XR-P640M, XR-P34()M
xR-P7 40, XR-P64trJ_,XR-P340
1.6
ICINFORMATION
c The information shown in the list is basic information
and may not correspond exactly to that shown in the
schematicdiagrams.
I rc9268Filc84o1
:AFcDAssY)
O X-A Modulation-Type
DA Converter
with
Built-in8-foldOversampling
DigitalFilter
o PinAssignment
(Top
View) o BlockDiagram
LrcX
rcK
EF
WA
-WX
xo
XI
NX
LrcK MX MTA K EF rcK WX
o PinFunction
No. Symbol VO Description Remarks
IVDD Digital part power supplyterminal
2T1 ITest terminal; normally usedon "L"
GNDA Analog part ground terminal for R channel
4RO oR channeldata right output terminal
RO oR channeldata inverseoutput terminal
6VDA Analog part power supplyterminal
7LO oL channeldata inverse output terminal
8LO oL channeldata right output terminal
9GNDA Analog part ground terminal for L channel
10 GNDD Digital part ground terminal
ll GNDX Crystal-oscillating
part ground terminal
L2 XI I
IJ XO or
t4 vDx Crystal-oscillating
part power terminal
15 MCK oSystemclock output terminal
16 EMP IDe-emphasisfilter control terminal;
"H": de-emphasis
filter ON, "L": de-emphasisfilter OFF
L7 HS IStandard/double-speedoperating modechangeoverterminal; "H": standard
operation,
"L": double-speedoperation
18 DATA IData input terminal
19 BCK IBit clock input terminal
20 LRCK LR clock input terminal
1-11

XR-P740M, XR-P640M, XR-P340M
xR-P7 40, XR-P6 Q, XR-P340
I PD4493A
{tC19O1
: DtSpLAy
ASSY
forMULTT
CDI
O System
ControlMicro-computer
o Pin
Assignment
(Top
View)
GO.
60 ?
60a
609
cro
Et LE(DISPL^Y)
T -T'
No. Name Function vo Description
15 so1 ]D DAT/ cLSI control dataserialoutout
16 SIl SQSO ISubcode
Q dataserial input
L7 Resetinput IESEl
l8 P74 }162STB N9162strobeoutput
19 P73 EX LE
(AF) NExtensionport (AF system)
latch
pulse
20 AVss AVss Connectedto GND.
2l ANIT JOG
AJOG
Input
22 ANI6 JOG
B
23 ANIs
A/D Spectrumanalyzerinput
24 ANI4
25 ANI3
26 ANI2
27 Pl1
28 P10 TUNE/
STEREOA/D TUNE/STEREO
status
discriminationinput
29 AVoo AVoo Connectedto +5V.
30 AVnrr AVnrr
31 P04 FCOK IFocusOK input
32 xT2 oOpen
33 Vss Connectedto GND.
34 X1
35 x2 o
36 P37 DCNT IDisc count pulse input
37 P36 DCHM IDiscselectorhomeSW
38 P35 MZSZ I
39 P34 MZSl
40 P33 INSD ISlider insideSW input
4l P32 LP52 I
42 P31 IPSl
V',
tt
O Pin
Function
No. Name Function VO Description
IFIP6 6G
PFL grid
2FIPs 7G
3FIP4 8G
4FIP3 9G
5FIP2 10G
t) FIPl 11G
FIPO rzc
8Voo Vop Connectedto *5V.
9SCKO EX CLK NExtensionport serial clock output
10 so0 'X DATI NExtensionport serialdata output
11 P25 EXLE
,DISPLAY'cExtension port (displaysystem)
latch oulse
T2 P24 POWER
ON/OFF CPOWER ON/OFF
IJ P23 CDXLT LLSI control datalatch oulse
L4 SCKl CD CLK t- LSI control data serial clock
1-12

XR-P74()M, XR-P640M, XR-P34()M
xR-P7 &, XR-P640, XR-P34()
No. Name Function uo Description
P30 SENS ILSI operating status multi-mode
iDput
44 P03 GFS IFrame/syncMock input
45 INTP2 SCOR ISubcodesynch SO + SI input
46 INTPl AC I AC input
47 INTPO REM IRemotecontrol sigrralinput
48 tc Connectedto GND.
49 P72 PLL CE PLLlatch
pulse
50 P71 PULSE2 I Tape2 reelpulse
input
51 P70 PULSEl ITape 1 reel pulse
input
52 Connectedto +5V.
PI27
I Keyscani[put
PT26
55 P125
56 P124
57 P123 PLL 9162 DATA/
KO11 PPLL and9162serialdata
P122 PLL 9762 cLw
KO10 PPLL and9162clock
59 FIP27 P16/KO9 P
FL segment
and
key scanoutput
60 FIP26 P15/KO8 P
FIP25 Pr4tKOT P
62 FIP24 P13/KO6 P
63 FIP23 P12lKO5 P
64 FIP22 P11/KO4 P
FIP21 P1o/KO3P
66 FIPzO P9tKO2 P
FIP19 P8/KO1 P
68 FIP18 P7lKO0 P
No. Name Function vo Description
69 FIP17 P6 PFL segment
70 FIP16 P5 P
71 Connected
to 30V.
72 FIP15 P4 P
FL segment
73 FIP].4 P3 P
74 FIP13 P2 P
75 FIP12 P1 P
76 FIP11 P
FL grid
77 FIPlO 2G P
78 FIPg 3G P
79 FIP8 4G P
80 F1P7 5G P
Note)
I : Input
A/D : AnalogInput
O : Cmos Artput
N : NchOpenDrain Output
P : PchOpenDrain Output

XR-P7@M, XR-P640M, XR-P340M
xR-P7 &, XR-P64{J_, XR-P340
I PD4492A
{lC19O1
: DISPLAY
ASSY
for SINGLE CDI
O System
Control
Micro-computel
o Pin
Assignment
(Top
View)
oooooo
_0i!,))))))
oooo:
GO6
co?
coa
coa
6ro
Grr
6ta
lr cLr
ar o^i^
ar Ll(oratLAY)
ltr
No. Name Function uo Description
15 so1 ]D DATA cLSI control dataserial outout
16 SI1 SQSO Subcode
Q dataserial input
L7 Reset
input
RESEl
18 P74 )162STB N9162strobeoutput
19 P73 EX LE
(AF) NExtensionport (AF system)latch
pulse
20 AVss AVss Connectedto GND.
2l ANIT JOG
AJOG
Input
22 ANI6 JOG
B
23 ANI5
A/D Spectrumanalyzerinput
24 ANI4
25 ANI3
26 AN12
27 P11
28 P10 TUNE/
STEREOA/D TUNE/STEREOstatus
discriminationinput
29 AVoo AVoo Connectedto +5V.
30 AVnBr AVnBn
31 P04 FCOK IFocusOK input
32 xT2 oOpen
JJ Vss Connectedto GND.
34 x1 I
35 x2 o
36 P37
cNot used
JI P36
38 P35
39 P34
40 P33 INSD ISliderinsideSW input
47 P32 OPEN IOPEN completionSW input
42 P31 CLAMP ICLAMP completionSW input
o PinFunction
No. Name Function VO Description
IFIP6 6G
PFL grid
2FIP5 7G
JFIP4 8G
4FIP3 9G
5FIP2 10G
oFIPl 1lG
FIPO L2G
8Vno Voo Connectedto +5V.
9SCKO EX CLK NExtensionport serial clock output
10 so0 ]X DATT NExtensionport serial data output
11 P25 EXLE
DISPLAY)cExtension port (displaysystem)
latch pulse
12 P24 POWER
ON/OFF cPOWERON/OFF
P23 CDXLT cLSI control datalatch pulse
l4 SCKl CD CLK cLSI control data serial clock
1-14

XR-P74OM, XR-P64OM. XR-P34OM
xR-P7 &, XR-P64(), XR-P34()
No. Name Function uo Description
43 P30 SENS ILSI operating status multi-mode
input
44 P03 GFS IFrame/syncMock input
45 INTP2 SCOR ISubcode synch SO + SI input
46 INTPl AC IAC input
INTPO REM IRemote control signal input
4a IC Comectedto GND.
49 P72 PLL CE NPLL latchpulse
50 PULSE2 ITape2 reelpulseinput
P70 PULSEl I TapeI reelpulse
input
52 Conoectedto +5V.
53 Pt27
Key scan
input
54 PL26
55 Pl25
Pt24
Pt23 PLL 9162 DATA.i
KO11 PLLand9162serialdata
5at Pt22 PLL9162
CLIv
KO10 PPLL and 9162clock
59 FIP27 P16/KO9 P
FL segmelt and
key scanoutput
60 FIP26 P1s/KO8 P
FIP25 P14|KOT P
62 FIP24 P13/KO6 P
63 FIP23 P12lKO5 P
uF]P22 P11/KO4 V
65 FIP2l P10/KO3 P
66 FIP2O P9tKO2 P
FIP19 P8/KO1 P
68 FIP18 P7lKO0 P
No. Name Furction UO Description
69 FIP17 P6 PFL segment
70 FIP16 P5 P
7L Connectedto -30V.
FIP15 P4 P
FL segment
73 FIPl4 P3 P
74 FIP13 P2
FIP12 P1 P
76 FIP1l P
FL Srid
77 FIPlO 2G P
78 FIP9 3G P
79 FIP8 4G P
80 FIPT 5G P
Note)
I : Input
A/D : Analog Input
O : CmosOutput
N : Nch OpenIhain Output
P : Pch Open Drain Output
t-t5

XR-P740M, XR-P640M, XR-P34()M
xR-P7 Q, XR-P64(), XR-P340
I pDGtoSA
flc3951
:ADDoN
DtspLAyAssy)
(Except
XR-P34OM andXR-P34Ol
O System
ControlMicro-computer
a Pin
Function
No. Name Function to Description
1PE3/INT3 NOUSE
2PE4/RMC RMCIN IRemote control signal i[put
3PE5 NO
USE
4PE6 PRO.LOGI oPrologic ON output
5PE7ITO
NO
USE
6PBO
7PBl/CSO
8PB2|SCKO
PB3/SIO
10 P84/SOO9154CLK o9154CLKoutput
11 PB5/SCKl 9154STB o9154STB
output
t2 PB6/511 )154
DATA o9154DATA output
13 PB7/SOi NOUSE
14 PCO/KROKEY INO IKey scan, Key retum signal
rnput
PCi/KR1 KEYIN1
PC2IKR2
NOUSE
17 PC3/KR3
18 PC4/KR4
19 PC5/KR5
20 PC6/KR6
2l PCTIKRT
22 PAO/ANO LEVEL
LIN IA/D inputfor levelmeter(Lch)
23 PA1/AN1 LEVEL
RIN IA/D inputfor level
meter
(Rch)
24 PA2iAN2 Destination IPrologic/Dolby
surround
changeover
25 PA3/AN3 SURROUND
SEL oDOLBY/THROUGH
changeove!
outputfor FRONT
& REARsignals.
26 PA4/AN4 F MUTE oFront mute output
No. Name Function vo Descliption
27 PAs/AN5
NOUSE
28 PA6/AN6
29 PA7/AN7
30 RST Reset signal input
EXTAL Connectedto ceramic
oscillator
(8MHz).
32 XTAL
33 VSS VSS GND
34 PDO/SO SMUTE oSurroundmuteoutput
PD1/S1 CMUTE oCentermuteoutput
36 PD2t32 C MODE2 oCentermode2 output
PD3/S3 CMODE1 oCentermode1output
38 PD4/S4 N MODE2 oNoise mode 2 output
39 PDs/S5 NMODE1 oNoisemodeI output
40 PD6/S6 NCH
SEL2 oNoise channel select 2 output
4l PD7lS7 NCH
SELl oNoise
channelselectI
output
42 PF0/S8 FL ON oFL ONoutput
43 PF1/S9
NOUSE
44 PF2/S10
45 PF3/S11
46 PF4/S12
47 PFs/Sr.3
oFL control segment output
48 PF6/S14 S2
49 PF7/S15 S3
50 S4
s17
52 s18 s6/KO2
oFL controlsegment/Keyscan
stlok output
s19 s7/KO1
54 s20 s8/KO0
|
- to

XR-P7@M, XR-P64OM, XR-P34OM
xR-P7 40, XR-P64(), XR-P3ZU)
No. Name Function UO Description
T15/S21 S9
oFL control segment output
'ft4ls22 s10
57 Tr3/S23 sl1
58 'tt2ts24 s12
59 Tli/525 sl3
60 Tr0/s26 s14
T9tS27
62 T8/528 st6
63 T7
NO
USE
64 T6
65 T5
66 T4
T3
68 T2
oFL controltiming output
69 TI G2
70 TO G1
71 VFDP VFDP Offsetvoltage
(-30V) for FL
control,
72 VDD VDD +5V Power
Supply
NC VDD Connectedto VDD.
PGO DOLBY
OFF IDOLBYNROFFinput
75 PG1
NOUSEPG2
77 PG3
78 PEO/INTO POWER
ON IPowerONinput
79 PE1/INT1 Destination PDomestic/foreiSnchangeover
80 PE2NNT2 NO
USE
I TcTso4F
0c8402
:AF
GD
ASSYI
O lnverter
a Pin
Assignment
{Top
View)
INA
GND OUTY

)(R.P7 4OM. XR-P64OM, XR-P34OM
xR-P74(), XR-P64{), XR-P340
t]SnnillfltNfifrl\V'll
tFrll
uvvIYJ4 $'uvue v!llj, nnno
IA\UIEU DOBO REPEAT
@TIMER
MEC
RNCI
WAKEUPPGM
tn RlllBltD
m"nmnh"mcfu
uffi"
rCI0
I AAVTOO2
(Vl7O1 : DISPLAY
ASSY)
O FLTube
o Grid
Assignment
a?||1{ltYl
UN
Sl
\ 23
4i
5
6
7
8l
s n0nnn2i
n3mnS>
------\sr -
NOTE
l) Fl,F2 --- Fi0ament
2) NP
------ No Pin
3) DL ______ Datum L
ine
4) 1G-12G
--- Grid
B8E =18r6 88t-:
ot-- -lo1tr ot|€
ooL- -Jorq ooL€
Oqr - -)otz oql...._
83f= =1811 83t-:
Bzc= =1810 82r:
8rf= =f 89 Brt-:
(12G-9G) (BG)
h\:- A
/inhn,
kn
//
|1\\n // n6
| \1nt/ 1l
v9 v h v
O-
0
,,tfl
x"fl
"//////\\
/i"
lltl lJo\\ l,
llu
v ull
z-,V d
(
7G-3G)
o Pin Assignment
an -.-
o AnodeConnection
6),
O PinConnection
t2G llG toG 9G BG 7G 6G 5G 4G 3G 2G ]G
P] 8l B1 B1 B] B1 AM co12 kffir KAIRAI}KE\-
m
P2 82 B2 B2 B2 B2 n n n n P6M
P3 83 B3 B3 B3 B3 e e etsN0 r0
QA QA AA B4 a/ QA Isss@TIffiR M
P5 B5 B5 85 85 B5 bobbonIE
P6 B6 B6 86 B6 B6 kkkkkmIgJ
P7 87 B7 B7 B7 B? )) ) JS3 2
P8 BB BB BB BB BB P.BASS
SrWm[ n
P3 8S 83 B9 B9 ff
<ralr>
)d d dddBI!A?
cur {a
Pta 8r8 8ra 810 B1A [(Drsco)J.J
p p 9 SILEEPft6
Pr1 Brl Bll Bll 811 l.L(MOvlE)JJ
rrrunfrE[,P 0
rtz a|2 ai2 812 812 TUNEO ccccffiCI [l
Pl3 813 Br3 813 813 mm mmm m mME.AT h
P14 al A 814 814 81
4STEffiO I I It{n
ls n
Pl5 815 815 815 Br5 CIOPV nhhnhs2 I
Pl6 Br6 Br6 816 Br6 ASES Fil co0l ffift )q ?
P17 r00 til IK t.3K !0( ss f,l
1-18

xR.-P74AM, XR-P640M, XR-P340M
xR-P74(), XR-P64(), XR-P340
I lnvzool (v3951 :ADDoN
DtspLAy
Assyl
(Except
XR-P34OM and
XR_P34O)
O FLTube
o GridAssignment
e4@Nz
lN-/11
(G)
N4AXJ
o PinAssignment
@
o
NPTE 1) Fl,
2) NP
3) NX
4) D_
)) tu
IU
I
l-! tlg lr-{
szsNz
=]
llIl{tn[(s rllltl)
ll \\\\\\N a///////
'll\"" '///
II TEST
N4[SU
ooo ooo ooo ooo ooo NI]AX
E
(2G)
, PAIIFRN ARFA I
r-l
L--_
PinConnection
F2---Filament
-No
pin
- No extend p
in
-Datum Line
- 3G
- Grid
81 82 83 84 85 ,.,86 87
r-a-r-F-
B8 89 B1A 81 1 812 Bl3 814
srafN40N
oo-o ooo ooo ooo ooo
EG@$0RM4t"F"rflRHT^l
P
R
@ L@M PHANTOM
ILSJ\U\V
UJJJ
3ah
t0G[G
REAR
Lah
LEVEL
CIENTER
Rah I
o AnodeConnection
3G 2G IG
PI Aru@tvsunts@umo sr€ n16)
P2 PR@. [.OG0C BI
P3 3ch
LOGIG 82 s
P4 MEAIR B3 lIEST
P5 LEVE[- 84 S2
P6 GENTER BS
P7 Lah Rah s4
P8 NOMMAT 87 ss
PS PHANTCIM B8 s6
P1A 't
6l B9 s7
PtI Bla
Pt2 Bt
l
Pr3 Br2
Pt4 8r3
Pr5 BI
Pr6
1-19

XR-P7@M, XR-P64OM, XR-P3@M
xR-P7 40, XR-P64(), XR-P34()
1.7
ADJUSTMENTS
1.TUNER
SECTION
I FMTuner
Section
a Setthe modeselectorto FM BAND.
a Connect
the wiring asshownin Fig. I 1.
o Before adjusting, make sure there is no gap between L6101 and L6102. If there is a gap between them, bing them into
contact with each other first, and then make adjustments.
o Make indicator adjustments in order of AM - FM.
FM75Q Anrenna Te.minat la;?n1
Fig.
1- 1 FMAdjustmont
ConnectionDiagram
I AMTuner
Section
a Set
themodeselector
toAM BAND.
a Conoectthewiring
asshown
in Fig. I 2.
StepNo. Adjustment
Title
FM SG
(lkHz, t 75kHzdev.) Reception
Frequency
Display Adjustment
Location Specifications
Frequency
(MHz) Level
(dBpV)
ICenter
Adjustment 98
Non
modulation 80or more L6207 Adjust sothat the DCvoltagebefweenPin 4
andPin28of IC6201becomes
0Vt50mV.
2FrontEnd
Sencitivity 98 l0- 30 98MHz L6102
T6101 Adjustso
thattheDCvoltageofthePin12of
IC6201
(S-meter)
becomesat maximum
level.
3TUNED
IND.
Lighting
Level 98 lfi.2 98MHz vR6201 Adjust sothat the indicatorsot TUNED
IND. start to light up.
Nofes.'
IC5201
XR_P74OM,
XR_P54OM,
XR_P
34M
xR-P740, XR-P640. XR-P340 DC VOLTMETER
Step
No. Adjustment
Title
AM SG
(400H2,
3070Mod.) Reception
Frequency
Display Adjustment
Location Specifications
Frequency
(kHz) Level
(dBpY,h)
ITUNED
IND.
Lightirg
Level 999 47!2 999kHz vR6202 Adjustsothattheindicators
of TUNED
IND. startto light up.
Note.'
a When SD and YPW type is used, set theAM Irequency step to 10kHz.
A M Anrenna Ter.m
rnal
XR_P74OM,
XR_P64OM,
XR_P
34M
xR-P740, xR-P54 0. XR-P340
AM Loop Antenna
1-20
Fig,
1-2 AM IMW) Adjuslment
ConnectionDiagram