Aiwa AD-WX727 User manual

aAaIIA
STEREO CASSETTE DECK
2ZM-1 P3N(D1)
* BASIC TAPE MECHANISM:
Type
Track format
Power requirements
Power consumption
Frequency response
Signalto-noise ratio
Wow and flutter
2Z2M-1 R3N(D2)
anna
SERVICE
AD-WX727
e TYPE.HE.U.EE.E.E1.K
REVISION PUBLISHING
SPECIFICATIONS
Stereo cassette tape deck
4 tracks, 2 channels
AD-WX727HE
AC 110-120V220-240V switchable,
50Hz/60Hz
AD-WX727E, E1, EE
AC 230V, 50Hz
AD-WX727K
AC 230-240V, 50Hz
AD-WX727U
AC 120V, 60Hz
18 W
Metal tape: 20—- 18,000Hz
(-— 20dB Recording)
CrO; tape: 20-17,000Hz
(-— 20dB Recording)
Normal tape : 20 — 16,000Hz
{- 20dB Recording)
78 dB (Dolby C NR ON above 5 kHz,
metal tape, peak level)
0.08% (WRMS)
Recording system AC bias
Erasure system AC erase
Motor DC motor x 2
Playback/recording head Permalloy head
Erasure head Double gap Ferrite head
Input REC/LINE IN: 100 mV
(input impedance 47 kQ, 0 dB) *
Output PLAY/LINE OUT :510 mV (0 dB)*
Optimum load impedance 47 kQ or
more
PHONES : 0.25 mW (load impedance
322, 0 dB) *
Outer dimensions (W XH x D)
430 x 140 x 326.5 mm
(7X5 5/8X12 7/8 in.)
Weight 4.9 kg (10.8 Ibs.)
* The “O VU" of this unit is indicated as “~ 4 dB” on the
level meter.
@ Design and specifications are subject to change without
notice.
@ Noise reduction system manufactured under license from
Dolby Laboratories Licensing Corporation.
@ “Dolby”, the double-D symbol are trademarks of Dolby
Laboratories Licensing Corporation.
S/M Code No. 09-946-058-001
—
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CAUTION
WHEN
SERVICING
If
the
tape
transport
mechanisms
are
in
the
following
state,
an
abnormal
sound
may
be
heard
when
the
power
switch
is
turned
on
and
the
mechanisms
may
not
operate.
In
this
case,
turn
the
power
switch
off
and
then
on
again.
The
mechanisms
will
operate
normally.(The
microprocessor
will
be
reset.)
Case
:The
PLAY
solenoids
in
both
decks
1
and
decks
2
have
drifted
down
from
the
normal
positions
and
also
the
FR
solenoid
in
one
deck
has
drifted
down
from
the
normal
position.
Case
:The
FR
solenoids
in
both
decks
1
and
decks
2
have
drifted
down
_
from
the
normal
positions
and
also
the
PLAY
solenoid
in
one
deck
has
drifted
down
from
the
normal
position.
Mi
ACCESSORIES
PACKAGE
LIST
DESCRIPTION
C4
XLV
Ys
“REFERENCE
NAME
LIST”
4BRALTC
RSW.
If
can’t
understand
for’
Description
please
kindly
refer
to
“REFERENCE
NAME
LIST”.
REF. NO PART NO. Hide DESCRIPTION
NO.
1 83-DW3-901-019 — IB, exes aa U)
2 83-DW3-902-019 1B, U (S) (U)
3 83-DW3-022-019 —_—- RC, RC-W102<U, Et)
4 87-009-725-019 PLUG, ADPTR_1R40 (HE)
5 87-034-786-019 CORD PIN 189-0760

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ELECTRICAL MAIN PARTS LIST
DESCRIPTION
CHIBTC
&
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“REFERENCE
NAME
LIST”
48MUTC
KAU)
If
can’t
understand
for
Description
please
kindly
refer
to
“REFERENCE
NAME
LIST".
a DESCRIPTION
NO.
REF.NO PART NO.
Ic
87-020-454-010
87-020-758-019
87-002-282-019
87-002-727-019
83-DW3-630-010
87-002-932-010
87-002-861-019
TRANSISTOR
87-026-463-089
89-503-735-089
89-109-521-089
89-320-011-089
87-026-215-089
89-213-302-089
87-026-462-089
89-112-965-089
89-318-155-089
89-406-555-089
87-026-290-089
89-213-542-389
89-213-702-019
87-026-214-089
DIODE
87-020-465-089
87-020-123-089
87-001-636-089
87-001-911-089
87-017-091-089
87-001-559-089
87-001-783-089
87-017-178-089
87-017-143-089
87-017-110-089
C101 87-018-121-089
C102. 87-018-121-089
C103. -87-018-123-089
C104 87-018-123-089
C109» 87-010-405-089
C110. 87-010-405-089
C111 87-010-405-089
C112, 87-010-405-089
C121 87-010-384-089
€122.——-87-018-134-089
C123 87-018-134-089
C125 ==: 87-018-126-089
C126 = 87-018-126-089
C201 = 87-018-125-089
C202 = 87-018-125-089
C207 87-018-123-089
C208 87-018-123-089
C209 87-010-405-089
C210 —87-010-405-089
C211. -87-010-405-089
C212 = 87-010-405-089
€221 = 87-010-384-089
ae
C301 = 87-018-123-089
€302 = 87-018-123-089
C303 = 87-018-131-089
C304 = 87-018-131-089
C309 = 87-018-126-089
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TR, DTC114YS
TR, 28813300
TR, 2SC1740S (RS)
TR, 2SA1296GR
TR, 2SC1815GR
TR, 2SD655E
TR, DTA124XS
TR, 2SB1354EF (U)
TR, 2SB1370E
TR, DTAI14YS
DIODE, 1SS13
DIODE OSes AT (TA)
TENER UTZJ4. TA (TAPG)
ZENER, HZS5C1
DIODE, 1SS$131 (T-72)
DIODE, 1N4002-T
ZENER, HZS11C1L
ZENER, H2S22-
ZENER, HZS7C2
cH. Te 150P-50 B
CAP, TC-U
ERS
ammmm
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5
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CAP; TC-U 330P-50 B
CAP, TC-U 220P-50 B
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REF.NO PART NO.
C310 =: 87-018-126-089
C313. 87-018-131-089
C314 87-018-131-089
C317 = 87-010-263-089
C319 = 87-018-131-089
€320 =: 87-014-081-089
C323. 87-018-201-089
C325 =: 87-010-248-089
C326 © 87-010- 401-089
C329 =: 87-010-405-089
C351 =: 87-018-121-089
C352. 87-018-121-089
C353 = 87-018-132-089
C354 «= 87-018-132-089
C501 +=: 87-010-370-089
C502 © 87-010-402-089
C503 © 87-018- 134-089
C504 = 87-018-131-089
C505 = 87-018-131-089
C506 «=: 87-018-134-089
C507 «=: 87-018-131-089
C508 == 87-018-131-089
C509 = 87-018-131-089
C510 =: 87-018- 131-089
C511: 87-018-134-089
C601 = 87-010-401-089
C602 © 87-010-401-089
C603 = 87-010-404-089
C604 © 87-010-404-089
C607 =: 87-010-248-089
C608 = 87-010-248-089
C609 = 87-010-400-089
C610 =: 87-010-400-089
C611 =: 87-010- 404-089
C612. 87-010-404-089
C613 = 87-010-401-089
C614 = 87-010-401-089
C615 — 87-010-401-089
C616 =: 87-010-401-089
C623. = 87-010-544-089
C624 = 87-010-544-089
C625 - 87-010-544-089
C626 = 87-010-544-089
C627 =: 87-010-404-089
C628 = 87-010- 404-089
C629 = 87-010-381-089
C630 «= 87-018-131-089
C631 © 87-018-131-089
C632. 87-018-132-089
C633. 87-018-133-089
C634 =: 87-018-133-089
C771 =: 87-010-401-089
C772. = 87-010-401-089
C773: 87-010-263-089
C774 ~=—s 8-010-263-0839
C775 =: 8T-010-401-089
C776 =: 87-010-401-089
C777 ~=—- 8 7-018-209-089
C778 = 87-018-209-089
C779 «~ -87-018-121-089
C780 = 87-018-121-089
C781 =: 87-018-214-089 |
C782 =: 87-018-214-089
C786 =: 87-018-209-089
C801 = 87-010-397-099
C801 = 87-010-388-099
C802 = 87-010-398-099
C802 —87-010-389-099
nv DESCRIPTION
NO.
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REF.NO PART NO.
87-010-382-089
- (804
C805 = 87-010-381-089
80
C809 87-010- 247-089
C810 87-010-405-089
CF501 89-MX1-704-089
J772,—-87-099-184-019
L301 — 80-DS4-618-010
L302 80-DS4-618-010
L303 . 80-DS4-617-010
L351 —_ 82-231-622-089
L352 © 82-231-622-089
L601 83-DS3-614-019
L602 83-DS3-614-019
SFR101 87-024-168-089
SFR102 87-024-168-089
SFR201 87-024-168-089
SFR202 87-024-168-089
SFR301 87-024-176-089
SFR302 87-024-176-089
SFR601 87-024-175-089
SFR602 87-024-175-089
DISPLAY C.B
C901 = 87-010-248-089
C903 = 87-018-214-089
C904 = 87-018- 133-089
C905 =: 87-018-131-089
C906 87- 018-131-089
C911: 87-018-214-089
CF901 89-WX1-704-089
FL901 83-DW3-629-119
1€951_ 87-017-725-010
SW951_ 87-036-170-089
SW952 87-036-170-089
$953 87-036-170-089
$w954 -87-036-170-089
SW955 87-036-170-089
SW958
S959 87-036- 170-088
SW960 — 87-036-170-089
S961 87-036-170-089
SW962 87-036-170-089
SW963_ 87-036-170-089
SW964 = 87-036-170-089
SW965 87-036-170-089
SW966 87-036-170-089
SW967 87-036-170-089
SW968 —87-036-170-089
VR951 80-SP5-622-019
PHONES JACK C.B
C783. 87-018-214-089
J771 ~—-8T-099-580-019
POWER C.B
A\PT801 =: 83-DW3-622-019
A\PT801 — 83-DW3-621-019
A\PT801 =: 83-DW3-623-019
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CAP, TC-U 1000P-50 B
CAP, TC-U_1000P-50 B
CAP, E 1-50 SME
CAP, E 100-50 SME
CAP, TC-U 0. 1-50F
CERALOCK (MU) 3. oui,
FL, BJ2556K
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CAP, TC-U 0. 1-50F
JACK, 6.3 ST/SW/46096
PT, EZ (EE, E1, E)
PT, HEHE)
PT, K(K)
REF.NO PART NO.
PT801 83-DW3-624-019
$w801 87-031-780-019
DECK 1 C.B
SFR1 -87-024-581-019
SFR2 — 87-024-331-019
SOL1 87-ZM1-618-319
SW4 87-036-110-019
SW5 87-036-110-019
SWE 87-036-110-019
DECK 2 C.B
SFRI1__ 87-024-581-019
SF
87-024-331-019
82-ZM1-618-319
si 87-036-110-019
SW
SW5 87- 036- 110- -019
SWE 87-036-110-019
RELAY 1 C.B
CON201 83-DW3-619-019
RELAY 2 C.B
CON101 83-DW3-620-019
DESCRIPTION
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ADJUSTMENT
MAIN C.B
1601(L)
SFR601(L)
SFR602(R)
L303
SFR201(L) SFR202(R) SFR102(R)
L302(R) L301(L) iS ©
(TOP VIEW)
DECK 1 CB
DECK 2 C.B
(DECK1) P HEAD
(DECK2) R/P/E HEAD
13
1. High Speed Adjustment (DECK1, DECK2)
Settings : * Test tape: TTA— 100 (TTA — 1115S)
*Test point: LINE OUT (PIN JACK)
+ Adjustment Location : SFR1 (DECK1)
SFR1 (DECK2)
When doesn’t put cassette tape in DECK2,
make FWD switch of prevent recording lever
to on, then turn Power SW on.
(hold the pushed lever more than 3 sec.)
(into TEST MODE)
Method : Play back the test tape, then push H —- DUBB
key and adjust SFRs for 6000Hz + 20Hz.
2. Normal Speed Adjustment (DECK1, DECK2)
Settings : + Test tape: TTA— 100 (TTA — 1115S)
* Test point: LINE OUT (PIN JACK)
«Adjustment Location : SFR2 (DECK1)
SFR2 (DECK2)
Method : Play back the test tape, adjust SFRs for 3000Hz
+ 10Hz.
3. Head Azimuth Adjustment (DECK1, DECK2)
Settings : » Test tape : TTA - 310 (TTA — 317E)
* Test point : LINE OUT (PIN JACK)
+ Adjustment Location : Head azimuth
adjustment screw.
Method : Play back the 10kHz signal of test tape and
adjust screw so that the output is maximum
and the waveforms in the lissajours are in
phase.
4. PB Sensitivity Adjustment (DECK1, DECK2)
Settings : » Test tape: TTA— 200 (TTA — 161)
* Test point : LINE OUT (PIN JACK)
* Adjustment Location : SFR201 (DECK1, Lch)
SFR202 (DECK1, Rch)
SFR101 (DECK2, Lch)
SFR102 (DECK2, Rch)
Method : Play back the test tape, and adjust SFRs so that
the output level of the test point becomes
460mV.
5. PB Frequency Response Check (DECK1, DECK2)
Settings : + Test tape : TTA — 310 (TTA — 317E)
* Test point: LINE OUT (PIN JACK)
Method : Play back the 315Hz and 10kHz signals of the
test tape and check the output of the 10kHz
signals OdB + 2dB with respect to that of the
315Hz signal.
6. Level Meter Check (DECK1, DECK2)
Settings : * Test tape : TTA —601
Method : Record set to make 510mV at LINE OUT.
Check the reading of the level meter.
*FL light on 0dB
-FL light off + 2dB
Wee
. Bias Frequency Adjustment (DECK2)
Settings : * Test tape : TTA — 630
* Test point : TP3
* Adjustment Location : L303
Method : Set to the record mode, and adjust L303 so that
the frequency counter of the test point reads
86kHz + 1kHz.
. HX Coil Adjustment (DECK1, DECK2)
Settings : * Test tape : TTA — 630
* Test point : TP1, TP2
* Adjustment Location : L301 (Lch)
L302 (Rch)
Method : Adjust L301, L302 so that the DC voltage at
the test points is minimum at the record mode.
. REC/PB Frequency Adjustment (DECK2)
Settings : * Test tape: TTA—601 (TTA — 630)
* Test point: LINE OUT (PIN JACK)
+ Adjustment Location : (DECK2) |
SFR301 (Lech)
SFR302 (Rch)
Method : Apply a 1kHz signal and adjust REC LEVEL
VR attenuater so that the output level at the
LINE OUT jack becomes 32mV.
Record and playback the 1kHz and 10kHz
Signals and adjust SFRs so that the output of
the 10kHz signal becomes 0dB + 0.5dB with
respect to that of the 1kHz signal.
10.REC/PB Sensitivity Adjustment (DECK2)
Settings : * Test tape: TTA-—601 (TTA — 630)
* Test point: LINE OUT (PIN JACK)
« Adjustment Location : (DECK2)
SFR601 (Lch)
SFR602 (Rch)
Method : Apply a 1kHz signal and adjust REC LEVEL é
VR so that the output level at the LINE OUT
becomes 32mV.
Record and playback the 1kHz signal and adjust
SFRs so that the output becomes 32mV +0.5dB.
11.MPX Adjustment (DECK2)
Settings : « Input signal : 19000Hz +50Hz 510mV OdB
* Test point: LINE OUT (PIN JACK)
* Adjustment Location : (DECK2)
L601 (Lch)
L602 (Rch)
Method: Apply a 19kHz signal and adjust Ls so that
the output level at the LINE OUT becomes
more than —30dB in DOLBY NR (B/C) on.
Notice : How to release TEST mode.
Turn Power SW off.

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:
PRACTICAL SERVICE FIGURE
Playback output Level
(TTA-200) (TTA~161, TCC-130)
REC/PB output
(TTA-601)
REC/PB. distortion
Playback noise
Erase ratio (125Hz)
Crosstalk
Channel separation
Level drift
(10kHz, TTA-300)
DOLBY effect
(TTA-610)
REC/PB S/N ratio
(LINEAR)
Recoding bias frequency
Tape. speed
Wow & flutter
(W.R.M.LS)
Takeup torque
Fast forward torque
Rewind torque
Back-tension
Test tape
:460mV + 0.5dB
(LINE OUT)
:3820mV + 1dB
(LINE OUT)
:Less than 2.0%
(NORM., CrO., MT)
:Less than 4.0//3.5mV
(120 us/70 us, DOLBY NR
OFF)
Less than 1.8/1.5mV
(120 us/70 us,
DOLBY NR B, C)
: (DECK2)
More than 58dB
:More than 60dB
:More than 30dB
: Within 1dB
:More than 8.5dB
(DOLBY NR B)
:More than 17dB
(DOLBY NR C)
:Less than 4.0,//3.5mV
(DOLBY NR OFF NORM./
MT, CrO.)
:Less than 1.8/1.5mV
(DOLBY NR B, C NORM./
MT, CrQ2)
: (DECK2)
85kHz
:8kHz + 15%
:Less than 0.18%
(DECK1, 2)
:30~55g-cm (DECK 1, 2)
:75~160g-cm (DECK 1, 2)
:75~160g-cm (DECK 1, 2)
2~6g-cm (DECK 1, 2)
:METAL TTA4630
CrOQ, TTA610
(TTA-119H)
NORMAL TTA-4601
15
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IC DESCRIPTION
IC, LC66408-4D70
Pin Name
SW-STOP1
SW-STOP2 Em
SW-CO
Description
TOP SW signal input of DECK1.
TOP SW signal input of DECK2.
TO, SW signal input of DECK2.
SW-MT etal SW signal input of DECK2.
REMOTE
ka
erial
data
input
terminal
of
remote
controller.
| o | Output terminal for record/playback monitor output signal muting.
-|
”
HIZIO[N
LMT
(OD)
“H”
at
muting.
POWER I OWER SW signal input.
g
re
Oo
eH
Oo
DATA (PU)
DATA (PU)
CLK (PU)
12° STB (PU)
AUTO1 (PU)
AUTO2 (PU)
M/FAST
Serial data output terminal for CXP-2201 (FL display).
erial data input terminal for CXP-2201 (FL display).
erial data clock signal for CXP-2201 (FL display).
trobe signal for CXP-2201 (FL display).
eel pulse input terminal of DECK1.
Reel pulse input terminal of DECK2.
Release timing control output of level meter.
n
I
aw
14
rane
L” when AC power turns off. Then the microcomputer is held.
Bias
oscillation
output
terminal
for
DECK2.
“H”
at
recording/dubbing.
“L”
at
resetting.
BIAS
fo
fee)
Muting
output
terminal
for
record
input.
“L”
at
record
mute.
MPU
test
terminal.
Connected
to
VSS.
Common
terminal
for
MPU.
(GND)
3.9MHz
Oscillation
terminal.
3.9MHz
Oscillation
terminal.
Reset
input
terminal.
Active
“L”.
Main
motor
control
output
terminal
for
DECK1
and
DECK2.
“H”
with
both
decks
at
STOP.
Solenoid
drive
output
terminal
for
DECK2.
Active
“L”.
Solenoid
drive
output
terminal
for
DECK1.
Active
“L”.
DOLBY
NR
ON/OFF
switching
output
terminal.
“H”
at
DOLBY
NR
ON.
ultiplex
filter
ON/OFF
switching
output
terminal.
“L”
at
MPX
filter
ON.
DOLBY
NR
B/C
switching
output
terminal.
“H”
at
DOLBY
NR
C.
trobe
signal
for
HA12155NT-01
(Dolby
IC).
erial
data
output
terminal
for
HA12155NT-01
(Dolby
IC).
erial
data
clock
signal
for
HA12155NT-01
(Dolby
IC).
igh-speed control output terminal for DECK1 and DECK2.
” at HIGH SPEED DUBBING.
roy
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wi cy re | el &
2
o
3 pears
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a
jae)
Bw
J
my
w
oO
XY
.
0
as
0)
ch. music signal level input terminal.
ch. music signal level input terminal.
ey function control input terminal.
KEY 72
ey function control input terminal.
LEVEL L
‘ower terminal.(+5V)
=
t
echanism switch control input terminal.
echanism switch control input terminal,
=
16 2