Kenwood KX-W8040 User manual

KX-W8040 lila
SERVICE
MANUAL
(1991-11 PRINTED IN JAPAN
B51-4467-00 (S) 4134
Cassette
lid
Escutcheon*
Panel
Metallic
cabinet
Knob
Escutcheon*
Cassette
lid
(A53-1335-04)
(BO7-)
(A60-0196-02)
(A01-1935-01)
(K29-4149-04)
(BO7-)
(A53-1335-04)
KENWOOD
ce
Knob
Dressing
pane!
=
Phone
jack
Knob
Knob
(K29-4141-03)
(A21-1790-03)
—§
(E11-0199-05)
(K29-4366-02)
(K29-4141-03)
Cassette
holder
ass'y
Knob
Cassette
holder
ass'y
(A53-1283-03)
(K29-4130-04)
(A53-1285-03)
AC
inlet
(E03-0102-25)
CAUTION t ATTENTION
RISK OF SLECTIMG SHICK {WSOC DE CHOC ELECTRMUE|
DU _NDT OPEN Ni PAS JUVE
Phono jack Miniature phone jack Foot
(E13-0445-05) (E11-0188-05) (J02-1034-05)
“Refer to parts list on pate 29.
Photo is KX-W8040Y type.

KX-W8040
CONTENTS
DISASSEMBLY FOR REPAIR ..........ccseecesseeeeereeees 3 PC BOARD sisesstcstensas Degiltranapehesa ise atop enetbesmetaasiuaee 19
BLOCK DIAGRAM sivisatcscvencsivesesesecnnsiteitncnsstyatuvacsues 4 SCHEMATIC DIAGRAM .........ccesssesesesssseeesseeeseees 21
CIRGUIE DESCRIP TION wccscnssoceietnasccaeusctentens rane 5 EXPLODED VIEW (MECHANISM) .......... cee 27
ADJUSTMENT ..0..ccecccceeesssestssscsesseneesssreneesseees 14 EXPLODED VIEW (UNIT) covcicsecctiticcs Giteaartveee 28
REGLAGE soseicccsis he Steak ca lenteissiticsealvnsersssvacetoeannescie 15 PART IST ssitctiacircn eciseaxguibenanniseataleniiess 29
ABGLEICH vases prsteretuiscinuscieccepocvanetvopnsaveceatsaesreenbetuas 16 SPECIFICATIONS. ccccsccesecuavatessanecense BACK COVER
WIRING DIAGRAM siissiscossincieversisedesctisssstsotnedantans 18
Accessories
Audio cord...... pe
(E30-0505-05) Instruction manual
B60-0777-00 (English)
System control cord...... 1 B60-0778-00 (French) P,E
(E30- 1392-05) B60-0779-00 (Chinese) M
B60-0780-00 (GE, Du, It) E
AG COM as cco inacj 045956 1 B60-0830-00 (Spanish) M
(Except for some areas.)
(The shape may vary de-
pending on the destination
Item carton case
area.) (E30-1305-15:Y) H50-0271-04
ae Prine itil ; Polystyren formd fixture
(Except
for
some
areas.)
FQ
H10-5101-12
For the unit with a Europe- ca
an AC plug in areas other oe H10-5102-12
than Europe. (E03-01 15-05)

KX-W8040
DISASSEMBLY FOR REPAIR
1. How to remove the front panel
@ Press the EJECT button to open the cassette
holder then remove the cassette lid.
Two claws of escutcheon pulling out side then
remove the escutcheon. (same of both deck)
@ Remove the four screws of bottom (@)
2. How to remove the mechanism
@®
Remove
the
four
screws
(@)
fxring
the
mechanism assembly

KX-W8040
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KX-W8040
CIRCUIT DESCRIPTION
RECORD/PLAYBACK AMPLIFIER UNIT (X28-2310-10)
Parts Description
[Qi
28D1266(Q,
P)
|
+12V
AVR
eee
|
G2
|
2SA999(E,
F)
|
-22V
AVR
ae
sake
See
eee!
25C3940A
IAS
OSC
CONTROL
(A)
|
4
28C3940A__|
BIAS
OSC
CONTROL
(B)
fea,
<<
(OGh
|
6
C
:
i
C
i
Use/Function Operation/Condition/interchangeability
RS ae ee eee eee
ECHA(A) SOL CONT.
ECHA(B) SOL CONT.
UICK REV. AMP
Q11,
12
2SA933S(Q,R)
EVEL
AMP
LIMITTER
‘Controlled
by
Q5.
Since
the
level
amplifier
output
to
+5V.
ao
<
> < Be)
[7
POs 2SC1740S(Q,R)[ +12VAVR
momentarily when the power is switched on.
|
Q25~28
|
2SA933S(Q,R)
[PLAYOUTMUTING
|
ControlledbyQ39
ontrolled by Q38_ OFF: B REC
FL DRIVER ontrolled by Q42 and Q43
ontrolled by IC3 pin 5 OFF: A REC
ontrolled by IC3 pin 4 OFF: B REC
ontrolled by 1C4 pin12 OFF: AREC
ontrolled by IC4 pini3 OFF:BREC
ontrolled by IC1 pin 14
ontrolled by IC5 pin 4 OFF: High speed
ontrolled by IC5 pin i3 OFF: Hich speed
ontrolled by IC1 pins 10 and 11
ontrolled by IC4 pins 7 and2 OFF: A Normal
A-BIAS CONTROL
-BIAS CONTROL
-REC MUTING DRIVER
-REC MUTING DRIVER
LAY OUT MUTING DRIVER
| Q40.—S« | DTC124ES _—| A-CPM SPEED CONTROL
B-CPM SPEED CONTROL
FL, DRIVER
DTC124ES -NORMAL BIAS CONTROL
DTC124ES
-NORMAL
BIAS
CONTROL
ontrolled
by
IC4
pins
9
and
11
OFF:
B
Normal
C
C
C
C
C
C
C
C
C.
C.
C
C
IGH-DUBB MUTING DRIVER | Controlled by IC3 pin8 OFF: High speed onl
-EH BIAS OSC CONTROL __| Controlled by Q35 OFF: A REC
-EH BIAS OSC CONTROL _| Controlled by Q36 OFF: B REC
-BIAS(HX) CONTROL Controlled by Q35 OFF: A RES
-BIAS (HX) CONTROL Controlled by Q36 OFF: B REC
-HEAD R/P CONTROL Controlled by IC3 pin7 ON: A REC
-HEAD R/P CONTROL Controlled by IC3 pin6 ON: A REC
IGH SPEED HEAD EQ Controlled by IC3 pin8 OFF: High speed only
-BEQA/B
SW
Controlled
by
IC1
pin
13
OFF:
A
plaibaack
Ci
C
C
C
C
C
ontrolled by IC4 pin5 OFF: Recodimg
ontrolled by 1C4 pin1 ON:CCRSon!
ontrolled by IC4 pin 2 ON: Auto bas recording
ontrolled by IC4 pin4 ON: Dolby off
ontrolled by IC4 pin3 ON: Dolby 3
ontrolled by IC4 pin6 ON: Multipbx filter on
Controlled by IC4 pin5 ON: Dolby jlayback
| 56 | DTCI24ES | P-BEQR/P SW
| 57S | DTC124ES | NOR/CCRS SW
| asa | DTC124ES__ | NOR/OSC SW
[ass | DTC124ES__| DOLBY ON/OFF SW
Fa60 [| DTC124ES_| DOLBY B/C SW
PX ON OFF SW
OLBY R/P SW

KX-W8040
CIRCUIT DESCRIPTION
RECORD/PLAYBACK AMPLIFIER UNIT (X28-2310-10)
Use/Function Operation/Condition/Interchangeability
M50945-129SP
Eee
ie Peg ee
| IC3~5 | CxD1067P_—— | Extended VO |
| C6 | TC9213P_| Electronic volume control = |
| 1C7,8 [| UPC1297CA | DolbyHX-PROU |
| ic9,10_ | CxAiigssP_ | RECEQ)
ee ee
Pena a Ne os
a ara e!
i eee ae
Pe ene ee
| BA10393_—
ee
eae ed
A-REEL COMP. fg te ge el
BA10303____| B-REELCOMP._—=—Ssd|—SSSSCSCSCSCSCSSCC~*r
Piozi_ [tastes ——SC«dARPBEQSSCSC~dSC“‘SWOCOC~“‘“*
[icx2 [tastes _—-[BPBEQ SSCs SSSSCSCSCSSCC*r
ne
arena Se Sa
aad
Pr ee eee ee

KX-W8040
CIRCUIT DESCRIPTION
Micro processor (M50945-129SP)
Vref O- 1 Vcc
LEVEL L © 2 AVcc
a R Oo 3 P1
PHTA
4
es
PHSA 5 P3
PHTB O 6 P4
PHSB O 7 PS
QRA oO 8 P6
QRB © P7
P17 P8
G4 On P9
KR4 P10
A P11
LM P12
V CLK O< P13
V DATA c P14
V STB ¢ P15
EX RST P16
EX CLK cl G1
EX DATA 0«———— G2
EX STB Ox G3
CE G5
OSC OUT © Gé
S BUSY © G7
S DATA O< G8
NC G9
RESET Vp
Xin O——— KRO
Xout oO KR1
NC KR2
NC KR3
Vss NC

KX-W8040
CIRCUIT DESCRIPTION
Pin Description
Name
LEVEL L
LEVEL R
PHTA
PHSA
PHTB
M
M
M
PinNo.}| I/O
A/B switching output _H: B deck L: A deck
Line mute output H: MUTE OFF L: MUTE ON
_ = ant
|
f \X| DIM O|0 <
ala SP lass :
ive] ma
CLK
Extended IC clock output —ss—SSCSC‘“~*“‘~*~‘“‘~*~*~*~*~S~*S
Extended IC data output __—S—SC~—~—“—S~—SsSC‘“—SsSCSSS
Extended IC strobe output SSS
PAC off detection H:ACON LACOFFSSOS~—~SCS
[ 400-Hz/10-kHz output forautobias——SSCSC—C~—~S~—~S~SY
' Serial busy inputoutpat——SSSSSSSCSCSCS~—S
Serial data inpuvoutput_____—SSSSSSCSCSCS—CS—S
Connect to ground ———SSSSSCSC—~—SCSSY
nN
PO] PO} PO a/fajoa}/oa}/ojoa}aol{a]oajou
= O
iw)
O)NO, OOM Mmm <<<
OW} | M|] ><] ><] O<] O<| MD] OO
S519) (aigeiar |
>|< Sala
<
na 7)
XCIN Connect to GND.
Pin for clock pulses for time display
COUT OPEN. _ Pin for clock pulses for time display
PG@oundpin SY
ROPENS ot po ee
Key input _FEKEVON L:KEYORFE
"Key input H: KEY ON L:KEVOFF SSCS
wo
Key input H: KEY ON L: KEY OFF
Key input H: KEY ON L: KEY OFF
Connect to -30 V
High-voltage-resistant port pulldown voltage input
w
W] Wd] Ww] ca WIN] MIN
w
(00)
wo
DOI ODIQ OOOO) <j AAA] A] Zl <| x
09] 63] G1] | NI] Co] MBBS
1
Dd Banal Be ced Bd Pood Rael bd bo

KX-W8040
CIRCUIT DESCRIPTION
Pin Description
eee a ee UNO eS er
Fluorescent segment output n
Fluorescent segment output o
luorescent segment output p
Analog-to-digital converter power supply. Connect to backed-up +5V.
Power supply pin. Connect to backed-up +5V.
O
- ™N
rir
oO ie)
ain
= COIN
fo?)
° = = Ot hel
> <
S$ ro)
< cc

KX-W8040
CIRCUIT DESCRIPTION
/O EXPANDER (CXD1067P)
1/0 1
A
BIAS3
1
YDD
A
BIAS2
2
CLK
A
BIAS]
3
DATA
B
BIAS
4
-
STB
A
BIAS
5
RESET
B
R/P
6
SET
A
R/P
7
50
EQSP
8
Pl2
B
BIAS3
70u
9
Pll
B
BIAS2
1 P10 B BIAS1
1/0 2
CCRS/NOR
1
VDD
OSC/NOR 2 CLK
DOLBY
B/C
3
DATA
DOLBY
ON/OFF
4
STB
DOLBY
R/P
5
RESET
MPX
6
SET
A
METAL
7
SO
A
Cr02
8
P12
B
RECMUTE
B
METAL
9
Pid
A
RECMUTE
1 P10 B Cr02
be x3
A SOL 1
A HOLD 2
A CPK 3
A CSP 4
A RRW K)
A REF 6
B SOL 7
B
HOLD
8
B
CSP
B CPH 9
B
RRW
1 B REF
10

KX-W8040
CIRCUIT DESCRIPTION
Pin Description
VO 1.
PWON= = Nate. _ [a PUCHOR
[| O [ABIAS3 | ForAUTOBIAS fordeckA
PO [ABIAS2 [For AUTOBIAS fordeckA
| O [ABIAS! [| For AUTOBIAS fordeckA
| O | BBIAS [| Bbiascontrol CH: BIASON L:BIASOFF
| O [ABIAS [Abiascontrol CH BIASON L:BIASOFF
| oO [BRP | BREC/PLAY switching CH: REC L:PLAY
| Pin No. |
pee
fete
es
eee
| 5
eam
B
i
a
B
a
AON
zi
7 [| 0 | i
8 | O | EQSP | Brecord equalization switching _H: NORMAL SPEED __L: HIGH SPEED|
[Oo [7 __| Playback equalization time-constant switching _H:7ous L:120us |
P= [Vss_———s| Connecttoground.
11 | O | BBIAS1 | ForAUTOBIASfordeckB
[42 [ O | BBIAS2 | ForAUTOBIASfordeckB
[13 | O [BBIASS | ForAUTOBIASfordeckB
| 14 {| O [SO | Dataoutputpin. Connecttothedatapinof VO expander2.
[is [1 [SET sé: Connectto VDD (+5V). H: NORMAL L:AllportsarelowH |
:
ee H: NORMAL _L: All ports are low L
T1417 | 1 [STB ___| Strobe signal input in. Connect to the EXST pin of the microprocessor.
[ig | 1 | DATA __| Datainputpin. Connect tothe EXDATApin of the microprocesso.__|
[19 | | [CuK | Clockinputpin. Connectto the EXCLK pin of the microprocessor.
[20 [ - | ~~ __| Powersupplypin. Connectto+5V.
02.
[WO] Name [SSCSC~SCSCSCCCSC*S CHM SCSC—=*
ASOL A solenoid control H: ON _L: OFF
AHOLD solenoid hold control H:ON L: OFF
A
A main motor control. Hub motor speed change. H:ON __L: OFF
A
A
|ACSP._—_—s{ Amain motor speed change =H: NORMAL SPEED _L: HIGH SPEED
PARRW_| Areel motor control _—_—H: REWIND, RVS __L: Others
[ARFF
[BSOL_
A i ;
A i :
A : :
A A reel motor control H: FF, FWD L: Others
B SOL B solenoid control H:ON L: OFF
B i :
B mai ; :
B
S}
S}
B HOLD solenoid hold control H: ON L: OFF
BCPM main motor control. Reel motor speed change. H:O0N LL: O[F
0 Ground pin. Connect to ground.
| O |
| Oo |
| O |
| O |
| O |
p20)
| O |
| O |
EOS]
see
| O |BRFF | Breel motor control SH FF,FWD iL: Others
| O | B
| O |
| O |
=
ie
Ee
te
oz
BCSP B main motor speed change H: NORMAL _ L: HIGH SPEED
1SO.-—_{ Data output pin. OPEN
FINO,
es
a
hee
Eso
esa
ee
Kare
ee
ieee
1
1
1
1 SET | Connect io VOD («5V). Hi: NORMAL _L: Allporis are low
4
7
1
| 20 |
CSP
RRW
RFF
reel
motor
control
H:
REWIND,
RVS
_L:
Others
O
ET :
RESET Connect to the EXRST pin of the microprocessor.
H: NORMAL __L: All ports are low
Stobe signal input pin. Connect to the EXST pin of the microprocessor.
DATA Data input pin. Connect to the SO pin of I/O expander 2
Clock input pin. Connect to the EXCLK pin of the microprocessor
Power supply pin. Connect to +5V.
11

KX-W8040
12
CIRCUIT DESCRIPTION
V0 3.
Pin. Now) | WOS)) 2 Names Use et PUNTO ea
| 1 | 0 | CCRSWNOR | CCRS/normal switching HH: CCRS__L: NORMAL __
| 2
OSC/NOR AUTOBIAS/normal switching H: AUTOBIAS L: NORMAL
DOLBY B/C Dolby B/C switching H: B TYPE L: C TYPE
Dolby REC/PLAY switching H: PLAY L: REC
Tr 6 MPX on/off control H: MPX ON L: MPX OFF
| 8 [| | A recording equalization switching
| 9 |
A RECMUTE A recording mute control H: REC MUTE OFF _L: REC MUTE ON
B RECMUTE B recording mute control H: REC MUTE OFF L: REC MUTE ON
Data output pin. Connect to the data pin of I/O expander 3.
Connect to VDD (+5V). H: NORMAL L: ALL ports are low
Connect to the EXRST pin of the microprocessor.
H: NORMAL L: ALL ports are low
Clock input pin. Connect to the EXCLK pin of the microprocessor
Power supply pin. Connect to +5V.
| O |
20%)
Ore
Ors
| O
Oe
om
|_ O |
=
P ii [| O | | Brrecording equalization switching H:CrO2__L: NOT METAL __ |
| O |
| O
| Oo
ale
ee
ie
ee
ae!

KX-W8040
CIRCUIT DESCRIPTION
Test Mode (b) Cancel
1.
Test
1
To
cancel
the
test
mode,
press
the
PAUSE
key
(a)
Setting
on
deck
A
or
B,
or
switch
the
power
off.
Note
Short
test
pins
(TP 3
4-4)
with
a
diode,
and
plug
that
the
direction
and
counter
values
while
in
the
in the AC cord. test mode are stored in memory. If the AC cord
is disconnected while in the test mode, the
memory is initialized completely.
All
indicators
light
two
seconds
after
the
power
is
switched
on,
then
the
normal
display
resumes
(except
for
the
meter
section).
(c) Operation
All indicators on
L INHFA CrO2A METALA_ INHRA
-15
-10
6
3
on
ae)
(oe)
R INHFB CrO2B METALB_ INHRB
Mechanical switch display
(DIRECTION switch)
When
the
REC
key
is
pressed,
the
counter
is
reset
to
0.000,
recording
is
done
forfour
seconds,
then
the
recorded
part
is
played
back
from
the
beginning.
*
The
key
is
accepted
at
any
time.
Four-second recording
(for decks A and B)
Deck A high-speed playback 4 seconds
Timer
play
Deck
A
normal-speed
playback
12
seconds
Deck
B
high-speed
playback
4
seconds
Deck B normal-speed playback 12 seconds
Deck B recording 15 seconds
Rewind to the beginning.
Time
recording
Deck
B
playback
13
seconds
Deck B stop
Note: Time recording is not done if there is no cassette in deck B.
FWD PLAY key ------+-+- Normal playback (FWD)
FF key sess esene High-speed playback (FWD)
Speed
change
RVS
PLAY
key
«+--+
Normal
playback
(RVS)
RWD key ecevennes Rewind
Note:
If
the
FWD
PLAY
and
FF
keys
are
pressed
altermately,
the
head
dones
notretract.
When the H. CCRS key is pressed, high-speed recording is done on deck B.
High-speed
recording
Note:
High-speed
recording
is
not
done
if
there
is
no
cassette
in
deck
B.
Dubbing
H <«{$—>L
Input level ATT
Keys to be inhibited
if the H. DUB and N. DUB keys are pressed alternately, the dubbing speed can be
changed without retracting the head.
Note: The speed cannot be changed if there is no cassette in deck B.
When
the
N.
CCRS
key
is
pressed,
recording
pauses,
and
the
level
can
be
input.
If
the
input
is
excessive
(+5
dB
or
higher),
the
PWM
is
changed
and
the
level
is
set.
Wen
the
B.
REC
key
is
pressed,
recording
can
be
done
at
the
specified
level.
Note
that
the
level
is
canceled
when
another
operation
is
performed.
The
DPSS
mode
is
not
entered.
Note
that
the
display
is
slightly
different
from
them
ormal
one.
13

KX-W8040
14
INPUT OUTPUT CASSETTE TAPE ALIGNMENT
ITEM SETTINGS SETTINGS DECK SETTINGS POINTS ALIGN FOR
CASSETTE DECK SECTION TAPE: NORMAL, DOLBY: OFF, INPUT: LINE OdBs =0.775V
1 REC/PLAY HEAD
POWER: OFF Demagnetize the REC/PLAY
C1) | DEMAGNETIZATION Remove the REC/PLAY head with a head
cassette door. head demagnetizer.
REC/PLAY Clean the REC/PLAY head
head erase head, capstan and
CLEANING erase head, Pinch roller using a cotto
capstan, swab slightly daaped
pinch roller. with alcohol.
MTT-114, TCC-153 Azimuth
SCC-1727
10kHz, -10dB
AZIMUTH adjustment screw Maximum output.
1 PC BOARD (X28-—231)
Adjust the tape speed so
MTT-111, TCC-110 DECK A: ; :
TAPE SPEED SCC-1727 DECK B: that a 6kHz signal is
(HL SPEED) 3kHz Test mode test YR1 (VR103) on each Produced at the center
-4dB FF key HI speed own mechanism board of the tape,
F. PLAY key ;
MTT-111, TCC-110 Normal speed | DECK A: Adjust the tape speed so
TAPE SPEED SCC-1727 DECK B: that a 3kHz signal is
CRORMAL) 3kHz VR2 (VR223) on each produced at the center
-4dB own mechanism board
of the tape.
Connect a DC DECK A: VR9 Adjust the semi-fixed
voltmeter to DECK B: VR10 resistanceso that
TPS and GND (A)
TP6 and GND (B) ene
Output level: -3.0dBs
Use the leader
section of
the test tape.
MTT-150
400H2(200n¥b)
QUICK REVERSE
SENSITIVITY
M PC BOARD (X28-231 )
DECK A:VRIL) 2-3,
PLAYBACK MTT-256, SCC-1727 VRAR)
<I> LEVEL 315Hz (160nWb) (B) PLAY DECK B:VRRXL)
NTT-256U, TCC-160 VRARI
SCC-1176 Output level: -2.0dBs
315H2(220n¥b)
Adjust REC level
volume so that
the REC monitor
output becomes
«29dBs at LkHz,
then record and
reproduce signal
of IkHz-and 10kHz
in alaternation.
Record IkHz and 10kHz in
alternation and adjust the
variable resistors which
DECK A:VRO(L)
VRGIR}
DECK B:VR7{L)
VR8IR)
(A)
IkHz, ~30dBs
10kHz, -30dBs
BIAS CURRENT
control the bias current
so that the same playback
level is obtained.
onnect the frequency
Load the counter between
BIAS OSCILLATING non recorded TPL and GND DECK A:L3 Adjust so that the
FREQUENCY tapes on Deck on Deck A, between DECK BL 4 frequency counter
A and B. TP2 and GND shows 1LQ5kHz.
on Deck B.
Load a Load a aetal tape, DECK A:L5(L)
<4 BIAS LEAK non recorded and dub in a ue Mininua (Point)
DECK B:L7(L)
tape on Deck A high speed mode. L8(R)

KX-W8040
REGLAGE
REGLAGE DE REGLAGE DE REGLAGE DU MAGNETO POIKTS DE
nN" ITEM L’ ENTREE LA SORTIE ~PHONE A CASSETTE L’ ALIGNEMENT ALIGNER POUR FIG.
SECTION DU MACNETOPHONE TAPE: NORMAL, DOLBY: OFF. EXTREE: LINE OdBs = 0,775V
{ TETE D’ ENRECISTREMENT/LECTURE
Demagnétiser la téte
POWER: OFF Tate D’ ENREGISTREMENT/LECTURE
DEMAGNETISATION Eloigner !a porte.| D’ ENREGISTREMENT/ avec un démagnétiseur
LECTURE de téte.
Téle Nettoyer ta téte
D' EXREGISTREMENT/ D’ ENREGISTREMENT/LECTURE
LECTURE téle la tete d effacement, le
NETTOYAGE
-
d
effacement,
pabeeten
et
le
galetpresseu
cabestan, avec un coton-tige
—t galetpresscur. légérement imbibé d' alcool.
MTT-114, TCC-153
AZAMUT
SCC-1727
Vis
d’
azimut
Sortie
maximer.
(a)
10kHz, -10dB
PLAQUE IKPRIMEE (X28-231)
MTT-111, TCC-110 DECK A: Réegler la vitesse de banda
VITESSE
DE
SCC-1727
DECK
B:
de
facon
qu'un
signal
C1
)|
DEFILEMENT
3kHz
VR1
(VR103)
sur
chaque
|
de
6kHz
soit
produit
au
(HI.
SPEED)
~4dB
H
igacetaey
Plegetie:de
mrcev
ars
centre
de
la
bande.
MTT-111,
TCC-110
F.
PLAY:Normal
speed
|
DECK
A:
Realer
la
vitesse
de
bande
VITESSE DE SCC-1727 DECK B: de facon qu'un signa!
(2)|
DEFILEKENT
3kHz
VR2
(VR223)
sur
chaque
|
de
3kiiz
soit
produil
au
(NORMAL)
-4dB
Plaquette
de
mécanisme
centre
de
la
bande.
SERSIBILITE
Utiliser
ees
DECK
A:
VR9
Ajuster
ta
résistance
(3){ D'
IRVERSIOX
la
sect
ion-guide
ee
END)
DECK B:
VR10
semi-fixe
pour
que
(b)
RAPIDE
de
la
bande
test
4
TP6
et
GND
(B)
la
tension
0,75¥(40,15Y)
soit obtenue.
TM PLAQUE IMPRIMEE (X 28-231
MTT-150
400HZ2(200n¥b)
MTT-256, SCC-1727
315Hz (160nWb)
WTT-256U. TCC-160
SCC-1176
315Hz(220n¥b)
DECK A:VRUGI Niveau de sortie: -3.0iBs
VRAD
DECK B: VR3GI
VRAD)
NIVEAU DE
LECTURE
Niveau de sortie: -6.01Bs
Niveau de sortie: -2.01Bs
Régter REC de
volume de niveau
facon que la Enregistrer un sigmi de
sortie de moniteur DECK A: VR5IG) IkHz et -LOkH2 en alternance
COURAXT
DE
(A)
REC
soit
de
-29dBs
VR¢@(D)
el
ajuster
les
résislances
€2>]
POLARISATION
ikHz.
-30dBs
(B)
a
lkHz,
puis
en
DECK
B:
VRUG)
variables
qui
commadent
10kHz. -30dBs VR8(D} le courant de polarilé de
facon a obtenir le néme
niveau de lecture.
eee ew
registrer et
reproduire des
signaux de [kHz et
10kiz en alternance.
Raccorder le
FREQUENCE Wettre en place | compteur de frequenca
D’ OSCILLATION des cassettes enter TPl et GXD de DECK A‘1. 3 Regler de sanice
€3> | DE POLARISATION | non enregistrees | Ja platine A, enter | Enregistrement DECK B:L 4 ace que le computer de | (c)
dans les platines TP2 et GND de ta (X28 -1380-01) frequence indique ISkHz.
A et B.
Wettre en place
platine B.
Mettre en place
PUITE DE une cassette non unebande metal et aaa
<4> | POLARISATION | enregistree dans (B) copier en mode de DECK B:L7(G) Wininum (point
L8(D)
Ja platine A vitesse elevee.
15

KX-W8040
ABGLEICH
CASSETTEN-DECK-ABTEILUNG TAPE: NORMAL, DOLBY: OFF, EINGANG: LINE OdBs =0.775¥
1 AUPNAHME/W1EDERGABE KOPR
POWER: OFF
Den Kassettenfach
Entmagnetisierung von dem
AUFNAHWE/WI EDERGABE-Kopf
ait einem Tonkopf
Entmagnetisierungsdrossel,
AUF NAHME/¥{ EDERGABE-Kopf,
AUPNAHWE/
WIEDERGABE-Kopf
ENTMAGNETI -
{1] STERUNG
deckel oben
herausziehen.
AUFNAHWE/
WIEDERGABE-Kopf Loschkopf, Tonwelle und
{2] REINIGUNG PLAY Loschkopf, Andruckrolle mit einem
Tonwelle, leicht mit Alkohol befeuch
Andruckrolle. teten Wattebausch reinigen.
Azimut-
Einstel!schraube
AZIMUT MTT-114, TCC-153
{3]] EINSTELLUNG SCC-1727 (B) PLAY
10kHz, -10dB
| GEDRUCKTE SCHALTPLATTE (X 28-231 )
Maximal Ausgang. (a)
Einen Schaltdraht
DECK A:
BANDGESCH- at zwischen DECK B. Die Bandgeschwindigkeit
WINDIGKEIT pede (B) GND und TP3 VR1 (VR103) anf der so justieren, da@ ein
(HI SPEED) “A6B anschlieBen. jeweils eigenen 6kHz Signal auf der Mitte
Mechanismus-Pldtine
PLAY des Bands erzeugt wird.
MTT-111, TCC-110 ee 5 Die Bandgeschwindigkeit
BANDGESCH~- SCC-1727 : so justieren, daB ein
Ent
VR2
(VR223)
anf
der
:
:
(2) VINDIGKEIT 3kHz jewells eigenen 3kHz Signal auf der Mitte
-44B
des Bands erzeugt wird.
Den halbfesten Viederstand
so einstellen, da.
die Spannung 0,75V
(10,15V) betragt.
Pidtin
Mechanismus- e
Eine Gleichspannungs-
messer an TPS
und GND (A), TP6 und
GND (B) anschliefen.
DECK A: VR9
DECK B: VR10
(NORMAL)
A SCHNELLRUCKLAUF - Den VYorspann
(3.)| EMPFINDLICHKEIT | des Testbandes
versenden.
I GEDRUCKTE SCHALTPLATTE (X 28-231 )
MIT-150
40082 (200n¥b) DECK A:VRIIL}
WIEDERGABE- | MTT-256, SCC-1727 A VRQR) eer ae
315Hz (160nWb) DECK B: VR3(L) Ausgangspegel: -6.0dBs
MTT-256U, TCC-160 VRAR)
SCC-1176
315H2(220n¥b)
Ausgangspegel: -2.0dBs
REC so Pegel
Lautstarke
justieren, da8 der
REC Monitorausgang
-29dBs bei LkHz
wird, und danach
abwechselnd Signal
von ikHz und 10kHz
aufnehmen und
Signale von IkHz und 10kHz
abwechselnd aufnehmen und
die Regelwiderstande, die
DECK A: VR(L) 5(L)
VRIR) 6(R)
DECK B:VR(L) 7{(L)
VR(R) 8(R)
(A)
1kHz.-30dBs
10kHz.-30dBs
LEERLAUFSTROM den Vormagnetisierugsstrom
regeln, so justieren, das
der gleiche Wiedergabepege]
erzielt wird.
wiedergeben.
Den Frequenzzahler
Unbespielte zwischen TPl und
ORMAGNETISIERUNGQ Kassetten in GND von Deck A DECK A:L 3 So einstellen, de® 105kHz
OSZILLATIONS-
Deck
A
und
B
und
zwischen
TP2
DECK
B:L
4
auf
dem
Frequenzzahler
FREQUENZ und GND von Deck B
anschlieGen.
einsetzen. angezeigt wird.
Eine Metal lband-
kassette einsetzen
und nit hoher
Geschwindigkeit
Uberspielen.
DECK A:LS(L)
L6(R)
DECK B:L7(L)
La(R)
VORMAGNETISIE-
RUNGSSTREUUNG
Eine unbespielte
kassette in
Deck A einsetzen,
Minimum (Punkt)
16

KX-W8040
KX-W8040
ADJUSTMENT/REGLAGE/ABGLEICH
WIRING DIAGRAM
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(¥/)
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WH7 p-Raé7 C200"
SYSTEM
CONTROL
REC LEVEL
REC BALANCE
4
Out
X25 C/4,¢
AR”
:
Refer to the schematic diagram for the values of resistors and capacitors.
19
20

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WE 0.1V (REC)
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M.REEL
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KICK
CPM
GND
+8
sP
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B- DECK
Bias EROY
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2SA999
2801845
2S8C3246
ISVUPLAY,STOP)
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25C3940A
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DTC124ES
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UN4212
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28C3311A
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PLAY, STOP
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NJM4565D-D
5
8
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1
Bias
ON/OFF]
CXA1198AP
XRU4051B
XRU4052B
TC4051BP
TC4052BP
TC9213P
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BA1039¢
TA8215S
CXD1067P Saye
TD62554S w

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3
(KP TYPE)
OGTE TF
( X28-) (
©
®
@®
®
@
©
Bias
‘ON/OFF
(YM TYPE)
2
DC
voltages
are
as
measured
with
a
high
impedance
voltme-
Die
angegebenen
Gleichipannungswerte
wurd:
TC4051BP
TA8215S
CXD1067P
BA10393
UPC7815HF
HA12170NT
UPC1297CA
M50945-129SP
ter
with
a
cassette
loaded
at
playback
mode.
Values
may
vary
setzter
Cassette
in
der
Wiedergabe
mit
einem
|
TC4052BP
TD62554S
"
RC4565D-D
-
slightly
due
to
variations
between
individual
instruments
Spannungsmesser
gemessen.
Dabei
schwank
TC9213P
.
"
33
or/and
units.
Bias
circuit
DC
voltages
are
as
measured
while
in
werte
aufgrund
von
Unesschieden
zwischen
; ; site , the record mode. strumenten oder Gerdtenus. U. geringfiigig. Die
rt % ‘ 32 ‘ : Fi Gleichspannungswerte der Vormagnetisieru
°
GND
: :
64
Les
tensions
c.c.
doivent
étre
mesurées
avec
un
voltmétre
a
,
:
6
U
U
wwpuT
(Case)
Y
"
haute
impedance,
une
cassette
étant
inserée
en
mode
du
lec-
wrurdeniin
der
Autrishme-testriebeart
gemeasen.
8
8
20
1
: ‘
'
ture.
Les
valeurs
peuvent
differer
egerement
du
fait
des
varia-
1
tions
inhérentes
aux
appareils
et
aux
instruments
de
mesure
1
individuels.
Les tensions c.c. du circuit de polarité doivent étre mesurées,
l'appareil étant en mode d’enregistrement.