Panasonic SAAK15 - MINI HES W/CD-P User manual

Servlce Manual
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orcmAL
AUOTO
6
MASH-
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n,,r\,\h¿r,,nt
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(6f))
20
Hz
-20
kHz
(-3
dB)
250
mV,
14ko
87.9
- 107.9
MHz
(200
kHz
steps)
87.5
-108.0
MHz
(100
kHz
steps)
23.3
dBf
(a.0¡rV,
IHF'58)
0.3%
0.5%
60
dB
60dB
40
dB
30
dB
75
Q (unbalanced)
52O
- 1710
kHz
280
pVim
630
pV/m
40dB
44.1
kHz
.16
bittinear
Semiconductor
laser
/780
nm
2channels,
Stereo
20
Hz
-20
kHz
(+1
dB,
-2
dB)
Area
isrtti"
ror
I
Model
No.
[!, I U.S.A
Music
Center
SA-AK15
(P)
a.-. i , il
i;.:sc
DE /¡t1;r"i.
;ílCHlVO t-"
CD
Stereo
System
Speaker
SB-AK15
(P)
l¡mi1
8fs
MASH
(1
b¡tDAC)
4 |rack,
2 channel
Solid
permalloy
head
Doublegap
ferritehead
DC
servomotor
AC
bias100
kHz
AC
erase100
kHz
4.8
cm/s
(1-A
ips)
35Hz
- 14
kHz(+1
dB,
-3
dB)
35Hz
- 14
kHz(+1
dB,
-3
dB)
50dB
(A
weighted)
0.14%
(WRMS)
Approx.
120
seconds
with
C-60cassette
tape
95W
AC
120V,60
Hz
270
x 330x290
mm
(105/u
x13"x11'./.r")
7.0
kg(15.alb)
SA-AK15
Colour
| ::-.
i (K)
.et".f fyp"
Area IColour
L (K)
tk MASHis
atrademark
ofNTT
Remote
Control
Transmitler SA-AK15
TAPE
SECTION
:
AR2
MECHANTSM
SERTES
CD
SECTION
:RAE0152Z-M
TRAVERSE
DECK
I Specifications
I Amplifier
Section
1kHz
continuouspower
output,
bothchannels
driven
RMS
power
output 2
x
30W (THD
1.5%,
6
(2)
t80Hz
- 20
kHz
both
channels
driven 2x25
W (THD
1%,
6O)
Total
harmonic
d¡stortion
Halfpowerat 1 kHz
Frequency
response
AUX
Input
sensitivity
andimpedence
AUX
I FM
Tuner
Section
Frequency
range
Sensitivity(For500mW)
Total
harmonic
distortion
MONO
STEREO
S/NMONO
STEREO
lmage
reject¡on
at
98.1MHz
Stereo
separation
at 1 kHz
Antenna
terminal(s)
I AMTuner
Section
Frequency
range
Sensitivity
(s00
mw)
(s/N
20
dB)
lmage
rejection
at1000
kHz
I CDSection
Sampling
frequency
Decoding
Beam
source/wave
length
Number
ofchannels
Frequency
response
f" rNoREso
r) | -o@',íi.¿dB
rJrsA)
SB-AK15
SERIES
S/N CD
UNIT
Wowand
Digital
filter
D/Aconverter
I Cassette
Deck
Section
Tracksystem
Heads
Record/playback
Erasure
Motor
Record¡ng
system
Erasing
system
Tape
speed
Frequency
response
at DECK
OUT
NORMAL
HIGH
POSITION
S/Nratio(NORMAL
typetape)
Wowandflutter
Fast
forward
andrewind
times
I General
Power
consumption
Power
supply
Dimensions(WxHxD)
Weight
Notes:
1.Specifications
are
subject
tochange
withoutnotice
Weight
anddimensions
areapproximate.
2. Total
harmonic
distort¡on
ismeasured
bythe
dig¡tal
spectrum
analyzer.
.cr
1998
Matsush¡ta
Electronics(S)
pte.
Ltd.
Allrights
reserved.
Unauthorized
copying
and
distributionis
aviolation
oflaw.
SB-4K15
Panasonic'

SA.AKl5
: WARNING
This
servlceinformation
is
designedfor
experiense
repairtechnicians
onlyandisnot
designedfor
usebythe
generalpublic.
ltdoesnot
contain
warnings
or
cautions
toadvisenon-technical
individuals
of
potential
dangers
inattempting
toservice
aproduct. Products
powered
by
electr¡city
should
beserviced
orrepaired
onlyby
experienced
professional
technicians.
Anyattempt
toservice
orrepair the
product
or
products
dealt
with
inth¡s
service
information
byanyone
elsecouldresult
inseriousiniury
ordeath.
I Gontents
BEFORE
REPAIR
ANDADJUSTMENT
..........
HANDLING
PRECAUTIONS
FOR
TRAVERSE
DECK
.....
SAFETY
PRECAUTIONS
..
PROTECTION
CIRCUITRY
PRECAUTION
OFLASER
DIODE
ACCESSORIES
CONNECTIONS
FRONT
PANEL
CONTROLS .....
SETTINGTHE
TIME
LISTENING
TO
COMPACT
DISCS
(PROGRAM
PLAY)
LjSTENTNG
TO
COMPACT
DTSCS
(CD
MANAGER
FUNCTTON)
....
BEFORE
RECORDTNG(DECK
2
ONLY)...
..........
RECORDING
FROM
COMPACT
DISCS
REMOTE
CONTROLBUTTONS
&FUNCTIONS
OPERATION
CHECKS
&MAIN
COMPONENT
REPLACEMENT.....
SELF.DIAGNOSTIC
DISPLAY
FUNCTION
CDTEST
MODEFUNCTION
I Before
Repair
andAdjustment
Disconnect
AC
power,
discharge
bothPower
Supply
Capacitors
C504and
C505through
a 10O
,
5Wresistorto
ground.
DO
NOT
SHORT-CIRCUIT
DIRECTLY
(with
ascrewdriver
blade,forinstance),
asthismay
destroysolid
statedevices.
Afterrepairs
arecompleted,
restore
power
gradually
using
avariac,
toavoid
overcurrent.
Current
consumption
atAC120V,
60
Hz,
inNO
SIGNALmode
should
be
-450mA.
I Handling
Precaut¡ons
For
Traverse
Deck
Thelaser
diodein
thetraverse
deck
(opticalpickup)
maybreak
downdueto
potential
difference
caused
bystatic
electricity
ofclothes
orhuman
body.
So,be
careful
ofelectrostatic
breakdown
duringrepair
ofthetraverse
deck
(opticalpickup).
2
2
3
3
3
4
4
5
. Handling
of traverse
deck(optical
pickup)
1.Donot
subjectthe
traverse
deck
(opticalpickup)
to
staticelectricity
as
itis
extremely
sensitive
toelectrical
shock.
2.To
prevent
the
breakdown
ofthelaser
diode,anantistatic
shorling
pin
is
insefied
intotheflexible
board
(FFC
board).
Whenremoving
orconnecting
theshort
pin,
finishthe
job
in
asshort
time
as
possible.
3.
Take
carenot
toapply
excessive
stresstotheflexible
board
(FFC
board).
4.Do
notturn
thevariable
resistor
(laserpower
adjustment).lt hasalready
beenadjusted.
. Groundingfor electrostat¡c
breakdown
prevention
1.
Human
body
grounding
Usethe
anti-staticwrist
strap
todischarge
thestatic
electricityfrom
your
Dooy.
2.Work
table
grounding
Putaconductive
material(sheet)
orsteel
sheetontheareawhere
the
traverse
deck
(opticalpickup)
is
placed,
and
ground
thesheet.
Caution:
The
staticelectricity
of
your
clotheswillnot
be
grounded
through
thewrist
strap.
So,takecarenot
tolet
your
clothes
touchthe
traverse
deck
(optical
pickup).
Cautionwhen
Replacing
theTraverse
Deck:
Thetraverse
deckhasashort
po¡nt
shortedwith
solderto
protect
thelaser
diodeagainst
electrostatics
breakdown.
Be
sureto
remove
the
solderfrom
the
short
point
beforemaking
connections.
Page
2 MEASUREMENTS
AND
ADJUSTMENTS
TERMINAL
FUNCTION
OFlC's
WIRING
CONNECTION
DIAGRAM
BLOCK
DIAGRAM
TERMINAL
GUIDE
OFlC's.TRANSISTORS
ANDDIODES..
SCHEMATICDIAGRAM
PRINTED
CIRCUITBOARD
TROUBLESHOOTING
GUIDE
MECHANISM
PARTSLOCATION
(RAA34O7)
Page
19-20
21
-23
24
25- 31
32
32-45
qO - J I
52
53-54
55
55
56
57,58
59
- 6.t
62-65
66
ol
5 MECHANISM PARTS1IST............
6 LOADINGMECHANISM PARTS
LIST,...........
7 CDLOADING
UNITPARTS
LOCATION
7-8 CABINETPARTSLOCATION
9 REPLACEMENT PARTSLIST
............
10
- 15 RESTSTORS
&CApACTTORS
...........
16
- 17 PACKING
MATERIALS
&
ACCESSORIES
.,,........,,.........
18
PACKAGING,,,
f:FC
board Lens
(Do
noi
touch)
Shortpoinl
Optical
pickup
No.
@
(GND)pin No.
€) (LD)pin Variable
resislor
(Do
not
turn)
Wrist
strap
-\--7
(Anti-:19!9
ilegqglll
lron
plate
orsome
metals
to
conducl
electr¡city
-2-

SA-AK15
I Safety PfeGaUtiOnS (rhis"sarety
precaution,'is
apptied
onty
in
usA.)
1. Eefore
servicing,
unplug
the
power
cordto
prevent
an
electricshock.
2. When
replacing
parts,
useonlymanufacturer'srecommended
componentsforsafety.
3. Checkthe
condit¡on
of
the
power
cord.Replace
ifwear
ordamageisevident.
4. After
servicing,
besure
to
restore
thelead
dress,insulation
barriers,insulation
papers,
shields,etc.
5. Beforereturning
the
servrcedequipment
tothecustomer,
besuretomakethefollowing
insulation
resistance
test
to
prevent
the
customerfrom
beingexposedto
ashockhazard
. Insulation
Resistance
Test
1. Unplug
the
power
cordandshort
thetwo
prongs
ofthe
plug
with
a
jumper
wire.
2. f urnonthe
power
switch.
3. Measure
theresistance
valuewith
ohmmeterbetween
the
jumper
AC
plug
andeachexposedmetal
cabinet
part,
such
asscrewheads,
antenna,control
shafts,handle
brackets,etc.Equipmentwith
antenna
term¡nals
shouldread
between
3MQand5.2MOto
allexposed
parts-.
(Fig.
1
)Equipmentwithout
antenna
term¡nals
shouldread
approximatelyinfinity
toallexposed
parts.
(Fig.2)
.Note
:
Some
exposed
parts
may
beisolatedfrom
thechassis
bydesign.Thesewillreadinfinity.
4. lfthemeasurement
isoutsidethe
specifiedlimits,
thereis
apossibility ofashockhazard.The
equipment
should
berepaired
andrechecked
beforeitisreturned
tothe
customer.
Antenna
Iermrnal
Exposed
melal
part
f¿r/
¡\ I
\-]:'orrmmeter
Fig.1
Resistance-3Mo-5.2Mo
Exposed
melal
part
lfthisoccurs,followthe
procedure
outlinesbelow:
1.Turnoffthe
power.
2.Determinethe
causeoftheoroblemandcorrectit.
3.Turnonthe
power
onceagainafterone
m¡nute.
Note:
Whenthe
protection
circuitry
functions,
theunitwillnotoperateunless
the
power
isfirstturnedoff
and
then
onagain.
I Protection Circuitry
The
protection
circuitrymayhave
operated¡f
eitherofthefollow¡ng
conditions
arenoticed:
. No
soundisheard
whenthe
power
isturned
on.
. Sound
stopsduring
aperformance.
Thef
unction
ofthiscircuitry
isto
prevent
c¡rcuttry
damageif
,
for
example,
the
positive
and negative
speaker
connectionwires
are
"shorted',,
or
if
speaker
systemswith an impedance
lessthan
the indicatedrated
impedance
ofthe
amplifier
areused.
I Precaution
ofLaser Diode
CAUTION:
This
unitutrlizes
aclass1laser.Invisrble
laserradiation
isemittedfrom
theoptical
pick
uplens.
When
theunitis
turnedon:
1.Do
notlook
directlyintothe
pick
uplens.
2.Donot
use
opticalinsturments
tolook
atthe
pick
uplens.
3.
Do
notadjust
the
preset
variable
resistor
onthe
pick
up
lens.
4.Donot
disassemble
the
optical
pick
up
unit.
5.lfthe
optical
pick
upisreplaced,
usethemanufacturer's
specifiedreplacement
pick
uponly.
6.Useof
controlor
adjustmentsor
performance
of
procedures
otherthanthose
specified
herein
may
result
inhazardousradiation
exoosure.
CAUTION!
THIS
PRODUCT
UTILIZES
ALASER.
USE
OFCONTROLS
ORADJUSTMENTS
ORPERFORMANCE
OFPROCEDURES
OTHERTHANTHOSE
SPECIFIED
HEREIN
MAY
RESULT
INHAZARDOUS
RADIATION
EXPOSURE.
I Accessor¡es
AC
power
supply
cord
(SJAI72)
.pc. FM
indoor
antenna
(R5A0006)
ñ
AMloopantenna
set
(RSA0022)
.
AMloop
antenna..........1
pc.
' Alvl
antennaholder..........1
pc.
Remote
controltransmitter
(RAK-CH94OWK)
..........1
pc
--"^"
-"t )-t
| --/
'trtt )
\. '/
Batter¡es
IR6/1R6,
AA,
UIV-3]
..........2
pcs.
-3-

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Remote control bultons and (unctíons
Reference
pages
are
given
asblackcirclednumbers.
GWEEI
,r.., Eo
Oo o
I -r-1- n'<.
c alcl cl
1-5J 6 -1A
C]OCO
7890
ROGSAM
CANCELFEPEATBANDOM
OCCT]
AUX TAPE CD IUNEF
CCOC
MUTING<V I >II
COAC
_ VOLUI\IE
+
E-:l
Panasonic
K< << >>,>>l
CO
,mffi "r''-:!!!!!g!!g!:g!=w* ¡ -
EI¡III.I
cTurns
theunitON/OFF
OF^r cottiññ aloón limér
C) Sound
quality/field
ON/OFF
andselection
1-2T3-
(J (JlU
4-s) 6 >10
COOO
7890
aaacf
Forstationselection
(ln
PRESETmode) .CD selection
(1-5)
.Track
selection
Drsc
C:) CD
selectmode
C) Engages
program
Input.
CANCEL
OCancels
program
contents.
C' For
selecting
repeat
playback
mode
RANDOI\¡
ORandom playback
aInput
sourceselection
.When
oowerOFF
One-touch
playback
beginsby
pressing
fUNER,CDor
TAPE.
.When
oowerON
Bandcanbeswitchedwith
TUNER.
and
taoe
deck
isswitchedwith
TAPE.
O
C]
cf
OO
.Searching
forward/
backward
.Skipping
forward/
backward
.FastJorward/
Rewind
(While
stopped)
.
Find¡ngthe
beginningofatune
cMutesvolumetemporarily.
OFor stationselect¡on
(V,A)
(ln
PRESETmode) Playback
(< , >)
óPlayback
(>)
Pause
(u)
aStop
- VOLUME+
C:::::] (:::= For
setting
volume
-9-

sA-4K19 l
I Before
Moving
or
Shipping
ThisUnit
Before
moving
orshipping
thissystem:
Prepare
thesystem
as
described
below
toprevent
damage
to
the
mechanlSm.
1. Remove
allCDs.
Z. HTESSUU.
3. Press
stop
button
(l )for5 seconds.
Thedisplay
willchange
from
"WAIT"
to LOCKED'
to"GOOD
BYE"
and
finally
"ZZZ"
'
Thenthe
unit
willbe
turned
offautomatically.
(This
vvill
set
the
so-called
"shiPPing
mode".)
4. Unplug
thesystem.
Theshipping
mode
will
turn
offautomat¡cally
when
you
turn
the
power
onthe
next
time.
stop
button
Avoid
strong
vibrations
orimpact
while
moving
the
equipment'
Theshipping
mode
willturn
oFF
automatically
when
you
turn
the
poweroN the
next
time
I Operation
Checks
and
Main
Component
Replacement
Procedures
I Ghecking
Procedure
foreach
maior
P.C.B.
,'ATTENTION
SERVICER" Some
chass¡s
components
may
havesharp
edges.
Becareful
when
disassembling
and
servic¡ng.
1. Thissection
describes
procedures
for checking
theoperation
ofthemajor
printed
circuit
boards
and
replacing
themain
comPonents.
2. For
reaslembly
after
operation
checks
or replacement,
reverse
therespective
procedures'
Special
reassembly
proceduresare
described
onlywhen
required'
3. Select
items
fromthefollowing
index
when
checks
or replacement
are
required'
4. ReferthepartsNo.
onthepage
of "Main
Component
Replacement
Procedures",
if necessary'
oContents
. Checking
Procedure
foreach
major
P.C.B.
1. Checking
of
the
Main,
Panel,
Deck
andServo
P.C.B " '
. Disassembly
of
theCDChanger
Unit
.'... ...
. Assembly
of
theCD
Changer
Unit
.........
...
. MainComPonent
Replacement
Procedures
1. Replacement
of
the
Traverse
Deck
............
2. Replacement
of
the
Power
Amplifier
lCand
Regulator
Transistors
page
10-12
12-13
13-14
1A
t5
1.Checking
ofthe
Main,
Panel,
Deck
and
($l![|) Remove theTop
Cabinet.
Servo
P.C.B.
@
[XTBS3+8JFZ1
]
(Black)
- 10
-

SA.AK15
DeckP.C.B
MainP.C.B PanelP.C.B
e@
Place
the
CDchangerasshownontheright
andchecktheMainP.C.B..Panel
P.C.B.and
DeckP.C.B.
. Disassembly
oftheTraverse
Unit
BottomviewofCDChangerUnil
Traverseunit
-
Sllde
Plate
Leve(1)
@
Move
the
Slide
Plate
Leve(.1
)
inthe
directionofarrow
@to
the
position
@and
holdit,thenlift
up
the
stopper
@ untilthe
Slide
Plate
Leve(2)
ejectout.
Now
the3
slide
plate
will
beopenas
shown
in
the
figure
1onthe
riqht
andthe
traverseunit
canbe
removed. +
Fig.1

SA.AKI5
@
Slidein
theTraverse
Unitinto
a
slot
on
thetop
ofthe
CD
Changer
Unit
andthen
standit.
@
Attach
the
discand
clamper
with
magnet
to theTraverse
Unlr
as
shown
inthe
diagram
onthe
left,
then
checkthe
ServoP.C.B.
(
Refer
to
page
7ofhow
to
check
the
CDUnitwithout
connect¡ng
to
the CD Changer
Loading
Mechanism.
)
I Disassembly
ofthe
CD
Changer
Un¡t
GlltDfottow the
procedures
in
'Checking
procedure
ForEach
Major
p.C.B. (@-€l@r
ssfip Remove
theMechanism
CoverAss
y
@ Remove
theTray
Switch
p.C.B.
o
IXTB3+1
0JFZ]
(Brass)
Tray
SwitchP.C.B.
Mechanism
Cover
Ass'y
Remove
theDisc
Tray
sidedonthel\,4echanism
Base
Ass'y
Disc
Tray

SA.AK15
@
Unlock
theBaseLock
Lever
in
thedirectionofarrowa
@DrawtheTrayBaseinthedirectionofarrow
.b
,until
itwillbestopped.
@
Release2stoppers manually
and
pull
out
theTray
Base
rn
thedirectionof
arrow
ó
Stopper
Stopper
I Assemb ofthe
CDChangerUn¡t
@
MovetheDriveRackin
thedirectionofarrow@to
the
position
asshowninthediagrambelowand
theCarrierLeverinthedirection
of
arrow
@ fully
untiltheCarrierLeverislocked.
"?j
@'
Rack
"1.
Drive
Bottomview
CarrierLockLever
CarrierLever
MechanismBase
Ass'y

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Drive
Rack
F¡9.
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@
ññii-r''it"
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and
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insert
the
Trav
Jase
on
the
Mechanism
Base
¡n
the
direction
of
arrow
@ until
the
Tray
Base
stops
as
snown
in
figure
l Release
only
the
óJrri"il"u"r. and
push
the
Tray
Base
together
with
the
Drive
ñá.r..
nrtur,
"nguging
the
gear,
release
the
Drive
Rack
which
held
and
leed
lhe
TraY
Base
slowly'
Top
view
DriveRack
Tray
Base
Tray
Base
@
ora-ra*
tn"Tray
Base
in
the
direction
of
arrow
@ to
the
end
until
itstops'
Make
sure
the
mark .
'
on
the
Tray
Base
isaligned
with
the
mark' on
in" ó*" n""r. as
shown
infigure
2before
closing
the
Tray
Base (ln
case
tf'at
tf,e
statement
above
L not
operated
draw
the
Tray
Base
agaln
from
steP
2)
Tray
Base
I Main
Component
Replacement
Procedures
-Septacement
of
the
Traverse
De9! unit
rGtÍD-GGDr Servo
P.C.B.
@ Follow
the
procedures
in Disassembly
of
the
Traverse Traverse
Deck
@
ox3 Desolderthe
4legs
of
the
2molors
and
Pull
out
the
Servo
P.C.B.
Servo
P.C.B
Remove
the
flex¡ble
cable
CN701.
Widen
the 2 bosses
witha flat
screwdriver
and
pull
out
the
2 pins
Then
remove
the
Traverse
Deck
. Removal
ofthe
flexible
cable
Push
the
top
of
the
connector
in
the
direction
of
the
arrow
@ ,
andthen
Pull
outtheflexible
cable
in the direction
of the
arrow
\2, .
Note
:
Insert
a short
Pin
into
the
flexible
cable
for traverse
unlt.
Flexible
cable
-l.S
srto,l
Pin @
, ....
'.:
l ,¡.{.É"r,
tH Flexible
cable
+F
d'/
v
bOSS
pin
@
[XrN2+6G]
(Brass)

SA-AKI5
2.Replacemgnt
of the Power
AmplifierlCand Regulator
Transistor.
s[[p Followthe
procedures
in
'Checking
of
thel\,4ain,
Panel,
DeckandServo
P.C
B.
(Step
1 - Step3 )
and
removetheCD
chanqer
unit.
@
@x2
Front
Panel BottomChassis
Disconnect
theCN301
and
pull
out
the
front
panelinthe
direction
ofarrow
shown
on
the
left.
@
Unsolder
lheterminals
of
PowerlCorRegulator
Transistors
on
thesolder
surface.
Heats¡nk
BottomChassis
@
Remove
the
heatsinkand
take
out
theMain
PC.B.
-t-
Power
lC
rc305
(
RSN3sH
1
)
Regulator
Transislor
Q523.
Q505,
Q517
Power
lC Fegulalor
Transistor
tc305 Q523,
Q505,
Q517
(KTD205BYGRTA,
2SD2395E,
2sB1
566E)
o@
[XTB3+8JFZ]
(Black) @
Remove3screws
which
fixedto
the
Power
lC
and
Transistor
Holder.
thenremove
Power
lC.Transistor
Holderand
Regulator
Transistors.
o
{ri
MainP.C.B.(solder
surface)
[XTW3+15T]
(Brass)

SA.AK15
I Self-Diagnostic
Display
Function
t ff511?r"."ril"r$tJ,f: selr'diagnostic
displav
runction
which'
ir
a
problem
occurs
.ili,J*;:ri:?i#J3"i,:'ú:s'l3sili",H:iilTtheunt
will
display
an
error
code
corresponding
to
tne
I powtR Turn
the
unit
on
with
no
cassette
¡n
the
deck.
(SELECTOR
:
TAPE)
D
sfAil0BYc/0N
I
"T"
will
appear
on
the
FL
display l
(unit
¡s
¡n
the
Self-Diagnosttc I
Function.
)
Cassette
Mechanism
Test(For
errorcodeH01
' HO2'
HO3'
F01
' F02)
i- tt"t. "TAPE,
DECK
1/2"
to
select
Deck
2'
2. Load
a casset,","p" *itnii..rurur. prevention
tab,
remove
from
left
side
only
and
close
the
cassette
holder'
i i::T;?JJ;[:g:1ffii gls*l¡l'""r*i*:*""'""Ji"J;
risht
s¡de
onrv
and
crose
the
cassette
horder
5. press
"t{<(< rr'¡r'¡oóiiei; (Tape
wiit
b:-t^t-of
,"ft"t2seconds)'
6. Load
apre-recoro"o
áf," *itnboih
.idu
,".oro
üosittu.t
and
close
the
cassette
holder'
7. press
"¡' -u*an-,*='ii, X;1Átter
TPS
function'
tape
will
stop
automaticallv)'
;. ;;;;; "'REc/sroP'
(rape
will
not
tolt)-- ^^,.
é::fiig:Xi:*?3i"":ii::T:'---l'ili"'Ji.*. time
when
"r
ruN,NG
MoDE"
is
pressed
le.q.
H01- H03 -
F01 etc
)
,o b-t""..
"TAPE,
DECK
1/2"
to select
Deck
.l . ..,¡irñ^rnheek H02because
ofnorecording
function)
1
1. Repeat
step
2 to ntoit-" óeJ l O"p" Deck
1will
not
check
H02
because
CD
Mechanism
Test
(Fl5' F16'
F25
- F28'F751
1 Press
"CD".
2 Press
"OPEN
-NEXT/-AUTO
:' :i¡:*;,:Xii#33i "t;Ji:'ji:'-t'l':;lnosd"".u.h
time
when
"rruNrNG
MODE"
s
pressed
(e.g.F15
- F16
=
F25 etc
)
I Toclear
all
Error
code
- j Press
"l TUNING
MODE"
button
for
5 seconos'
2. FL
indicator
shows
"CLEAR"
for
1second
and
change
to "T"'
I How
to getoutfrom Self'Diagnostic
function
1. Press;PoWER"
button
oFF'
I
Press
and
hold
the
"l TUNING
MODE"
button
for
at
least
2
- WhrlePressing
tfre
"l TUNING
';' \ t¡ooe';
button'
Press
">>
>>l
--;;-- MEMoRY/SET"
button
for
at
least
*'a | 2 seconos.
I Power
AmPlifier
Failure
(F61)
1. When
power
amprifier
fail'
F61
will
indicate
automatically
la -

SA.AKI5
I Description
of Error
Code
(1)
Error
detection
forCassette
Mechanism
block
No.
1I Error
MODE
SW
detection
errl
REC
INH
SW
detection
error
Error
Disptay
T
H01
l;ot
T
Problem
condition
Faulty
operation
ofcassette
mechanism.
Faulty
contact
orshort-circuit
ofmechanism
mode
switch
(S95.1
,Sg71).
IRecording
not
possible.
Faulty
contact
or
short-circuit
ofREC
INH
switch
(5974,
5975).
Playback
cannot
perform.
Faulty
contact
or
short-circuit
ofHALF
switch
(Sg52,
3972).
The
tape
advances
slightly
and
then
stops.
Faulty
reel
pulse,
faulty
hole
detecttC
(1C951,
1C971).
Cassette
deck
will
not
perform
TPSfunction.
Faulty
playback
EQ/recording
amptifier
tC
(1C101).
2
3
^
HALF
SW
detection
error
Reel
Pulse
detection
error
TPS
abnormal
I
I
H03
tr^1
F02
(2)
Error
detection
for CD/Changer
block
No. Error
REST
SWdetection
er(or
Problem
condition
ICD
doesnot
function.
This
error
occurs
when
the
Optical
pick
UpREST
SW
(S701)
isnot
detected
within
thespecified
time
(about
8 seconds)
CDdoes
not
function.
This
error
occurs
when
53 (Traverse
up
detection)
isnot
ON
orOFF
within
the
specified
time.
Tray
does
not
stay
open.
This
error
occurs
when
54 (Tray
open
detection)
isnot
ONorOFF
during
OPEN/CLOSE
operation
within
the
specified
time.
qQ /'l-rrD\
detect¡on
error
Error
Display
F15
Tto
T
2
3
5
o
so
tJ*ol l riu
detection
error
Transmission
error F26
between
CDservo
LSI
and
micon
s5
(rNo)
detect¡on
error
s1
(sTK),
52
(PLY)
detection
error
TCD
power
error
CD
doesnot
function.
This
error
occurs
when
thePOWER
is
ONfor
the
CD
blockand
an
erroris
detected
after
thetransmission
has
stadeo.
Tray
number
doesnot
detect
correcily.
This
error
occurs
when
35 (Tray
number
detection)
cannot
be
detected
normally
orwhen
theTRAyNo.
isuncertain.
CDloading
mechanism
does
not
move
correctlv.
This
error
occurs
when
S1
(stocker
position
detection)
is
not
ON
or
OFF,
or
52 (playposition
detection)
is
not
ONorOFFwithin
the
specified
time.
CD
doesnot
function.
Checkil
CDRST
is
Hfor
SELECTOR
atCD.lfitis
not
Hafter
1
second,
it
shall
bememorised
as
an
error.
(lC7O2)
F27
F28
1t
rtc
(3)
Power
Supply
related
error
detection
Error
olsotay
]
F61 When
POWER
is
switched
on,
power
become
offautomaticallv.
During
normal
operation,
if
DC
DET
becomeL,PCNT
shall
become
Land
the
error
display
on
theleft
shallbe
displayed.
(lCSO1)

SA-AK15
_l
I CD
Test
Mode
Function
ThisCDtest
modeis
provided
to
check
cDunit
without
connecting
to
changer
loading
mechanism.
This
mode
shall
operate
cD PLAY
withCD
unrt
beingconnected
onlyand
cDAutomatic
Alignment
result
is
shown
on
t-Ld¡splay.
I How
to setCD
test mode
Prepare
and
setuP
the
CDunit
¡ checking
condition
(Refer
to page
B)
I t - ) PressCD l
L-l
I
I
CD
Automatic
Alignment
result
indication
Thisfunction
provided
ind¡cation
of
errorcode
as
theresult
ofAutomatic
Alignment
ofCD(Tracking,Focus,
Offset,
etc
)
Basedon
these
errorcodes,
the
faultyarea
can
be
located.
Errorcode
Explanation
. Theunit
issatisfactory
iftheerror
code
isE00
. Before
testing,
makesure
that
thetest
disc
isfreeof
scratches,
dirt
and
thatthe
optical
p¡ck
up
lens
is
clean.
(.>(.
Fault
either
items)
Display
Pressand
holdthe
'l TUNING
MODE'button
atleast2 seconds
button,
press
">>,/)')'l
MEMORY/SET"
button
for
at
least
2seconds.
f -l Automatic
Alignment
result
appear
CD E00
I on
the
FL
disPlaY'
O SatisfY X Fault
_ 18
-

Measurement
Condit¡on
. Reverse-mode
selector
switch
: .. ;
. Tape
edit
:NORMAL
. Record
timer:
OFF
. Dolby
NR'OFF
. Make
surehead,
capstan
and
pressure
roller
are
clean
. Judgeable
room
temperature
20t 5 "C
(68
t 9"F)
Measuring
instrument
. EVM
(Electronic
Voltmeter)
. Digital
frequency
counter
Test
tape
. Head
azimuth
adjustment
(B
kHz,
-20 dB);
QZZCFH¡
. Tape
speed
adjustment
(3
kHz,
-10 dB);
QZZCWRT
. Playbackgain
adjustment
(315
Hz,0 dB);
QZZCFM
. Normal
reference
blank
tape:
QZZCRA
. CrOrtape;
QZZCRX
. Head
Azimuth
Adjustment(Deck
1/2)
Caution:
. Please
replace
both
azimuth
adjustment
screws
(RHE5152ZB)
and
sprangs(RM80331)
simuttaneously
whenreadjusting
the
head
az¡muth.(shown
inFig.
2)
Evenifyou
wish
toreadjust
thehead
azimuth
without
replacing
thescrews
andsprings,
a fine
adlustment
cannot
bedone
be_
cause
ofthe
screw-locking
bond
adhered
tothe
az¡muth
screw
and
spr¡ng.
. Please
remove
thescrew-locking
bond
left
onthehead
base
when
replacing
theazimuth
screw.
. lfyou
wjsh
to readjust
thehead
azimuth,
besure
toadiustwith
adhering
the
cassette
tape
closely
tothemechanism
by
pushing
thecenter
ofcassette
tape
with
your
finger.(shown
inFig.
3)
1.
Playback
the
azimuth
adjustmentportion
(8
k1z,
-20
dB)
ofthe
testtape
(OZZCFM)
inthe forwardplay
mode.Vary
the
azimuth
adlusting
screw
untilthe
outputof the R-CH (pB OUT-R)
are
maximized.
2.Perform
the
same
adjustment
in
thereverse
plav
mode.
3,After
the
adjustment,
apply
screwlock
totheazimuth
adjusting
screw.
R,CH
{PB
OUr-R)
Fig.
1
/Qf..ttr(1(r7R\
H (FM80331)
Fig.2
E,HEAD R/PHEAD
triñ ?
Azimuth
Screw
(Forward) Azimuth
Screw
(Reverse)
Fig.4
. Tape
Speed
Adjustment(Deck
1/2)
1. Set
thetape
edit
button
to
"NORMAL,
pos¡tion.
2. Insert
the
test
tape
(QZZCWAT)
toDECK2 and ptayback
(FWD
side)
themiddte
portion
of
it.
3. Adjust
VR201(DECK
2)for
the
outputvatue
shownbetow.
stment
target
:2940- 3060Hz
(NORMAL
speed)
After
alignment,
assure
thatthe
outputfrequency
of
the
DECK
2 REV
and
DECK1FWD/REV
arewithin
t 60Hz
ol
the
value
ofthe
output
frequency
ofDECK2 FWD.
(Rch)
¿Ed
¡m
(GND) t-
I
t_-TT--rl
i,I I l
-(lr
r
:.,
Digitalfrequency
counter
UNIT
i SA.AK15
I Measurements
and
Adjustments
<CASSETTE
DECK
SECTION>
. Bias
and
Erase
Voltage
Check
1. Set
theunit
to"AUX"
position.
2. Insert
the
Normal
blanktape
(eZZCRA)
into
DECK
2and
setthe
unil
to
"REC"
mode(use
".REC
/ STOp,'
key).
3. Measure
and
make
sure
that
theoutput
iswithin
the
standardvalue.
4 Insert
the
CrO2tape(OZZCRX)
5. Repeat
steps
2and
3.
Bias
1Mo
TP5 ¡rN"A;
rP4
(GND)
O+
1Ko
Erase ACEVIV
F't
|'-7-'
L--\
lt0)
?9
r-r
?
=
'-.a
Bias
voltage
for Deck2 (Standard
value)
: 19
t 4mV
(Normal)
27
t SmV
(CrOr)
Erase
voltage
for Deck2 (Standard
value)
:more
than
70niv
(Normal)
more
than
90mV
(CrQ")
UNIT
- 19 -
o Q-

SA-AK15
. Bias
Frequency
Adiustment
(Deck
2)
1. Set
the
unit
to "AUX"
position'
2 lnsert
the
Normal
blank
tape
(QZZCRA)
into
DECK
2 and
set
the
unrt
to
"REC"
mode
(use
"'REC
/ STOP"
key)'
3. ÁJiust
l-zOl
so
that
the
output
frequency
¡s
within
the
standard
value.
Standard
Value
:98 t 8 kHz
<
TUNER
SECTION
>
I AM-IF
ALIGNMENT
AM-IF
ALIGNMENT
ADJUSTMENT
(Shown
in
Fig'
3) REMARKS
Adiust
for
max¡mum
outPut'
SIGNAL
GENERATOR
or
SWEEP
GENERATOR RADIO
DIAL
SETTING
INDICATOR
(ELECTRONIC
VOLTMETER
or
osclLLoscoPE)
CONNECTIONS FREOUENCY Headphones
Jack
(32O)
Fabrrcate
the
Plug
as \
shown
In
Ftg.2 and
then I
connect
the
lead
wir€s
of I
the
Plug
iothe
measurrng
/
rnsttumenl r
2102
(AMIFT)
Fashion
a looP
of
several
turns
of
wire
and
rad¡ate
a signal
rnlo
the
loop
ant.
of
recerver.
450kHz
30
% Mod.
at
400H2
Point
of
non-
interf
erence.
(on/
about
600kHz
I AM-RF
ALIGNMENT 2101
(AM
oSC Coil) Adjust
for
maximum
outPut'
Adjust
for
max¡mum
output
520
kHz Tuning
caPacttor
fullv
closed 2101
(AMANT
Coil)
600
kHz Tuning
to
stgnat
. Alignment
Points
<Cassette
Deck
Section> <Tuner
Section>
on
Main
P'C'B'
Fig.
<Servo
Section>
I
¡m
To
Headphone
Jack
ll
ffi rf{E
Fig.
1
To
Measuring
lnstrument
R=16-32o
cP601
-20-