Technics RS-X102 User manual

ORDER NO. AD9103044C8
Service
Manual
Cassette Deck
Dolby NR-Equipped S-X 0
Stereo Double Cassette Deck R 1 2
Color
(K)... Black Type
DiC [etsy system] ick
Country
Code
Area
Continental Europe.
Great Britain.
F.R. Germany and Italy.
(K)
Asia, Latin America,
Middle Near East and
Africa.
Oceania.
MECHANISM SERIES (AR300)
SPECIFICATIONS
M@ CASSETTE DECK SECTION Wow and flutter 0.1 % (WRMS)
Fast forward and rewind times
Deck system Stereo cassette deck Approx. 110 seconds with C-60 cassette tape
Track system 4-track, 2-channel Input sensitivity and Impedance
Heads LINE 60 mV/47 kQ
(tape deck 2) rec/play Permalloy head Output voltage and impedance
erasing Double-gap ferrite head LINE 400 mV/800 Q
(tape deck 1) play Permalloy head
Motors
(tape deck 2) Capstan/reel table drive § DC servo motor WM GENERAL
(tape deck 1) Capstan/reel table drive |©§ DC servo motor
Recording system AC bias Power consumption 15 W
Bias frequency 80 kHz Dimensions (W x H x D) 360 x 129 x 285 mm
Erasing system AC erase (14-3/16" x §-3/32” x 11-7/32")
Tape speeds 4.8 cm/sec. (1-7/8 ips) Weight 3.7 kg (8.1 Ib.)
Frequency response (wio Dolby NR)
NORMAL 30 Hz~16 kHz
40 Hz~15 kHz (DIN)
cro, 30 Hz~16 kHz
40 Hz~15 kHz (DIN) Note:
METAL 30 Hz~18 kHz Specifications are subject to change without notice.
40 Hz~17 kHz (DIN) Weight and dimensions are approximate.
SIN (signal level = max recording level, CrO. type tape) * Dolby noise reduction manufactured under license
Dolby B NR ON 66 dB (CCIR) from Dolby Laboratories Licensing Corporation.
Dolby NR OFF 56 dB (A weighted) “Dolby” and the double-D symbol are trade marks of
Dolby Laboratories Licensing Corporation.
Technics

RS-X102 |
Mi CONTENTS
Page
ACCESSORIES. ..........-sssessssssctsesrsccsncssnssenssensonsensonensecsesnsseunerssees 2 INTERNAL CONNECTION OF FL .u......sccsssssssessessessssesnersseeee
CONNECTIONS otaare WIRING CONNECTION DIAGRAM.
LOCATION OF CONTROLS ........ccssesressesressesccrsnsreoesensseneons 3,4 TERMINAL FUNCTION OF 1C7S...........cssssssseecessoeseensoenee
DISASSEMBLY INSTRUCTIONG..........ccccsscssssssssssseseneeseens 5~8 PACKING bascccie. rect eocicatecish eck ee ae tise cet eee duaataneel «
INFORMATION ON POWER SUPPLY FIXTURE.................00+ 9 REPLACEMENT PARTS LIST...
MEASUREMENTS AND ADJUSTMENTG............... - 10~12 RESISTORS & CAPACITORG...........
BLOCK DIAGRAM........scscccsssesssssssncsssnsecsesserserseneesssensneenens 13, 14 EXPLODED VIEWS (Cabinet parts).
PRINTED CIRCUIT BOARDG...........-cssssssssssseseessesensrstees 15~18 REPLACEMENT PARTS LIST...........00000
SCHEMATIC DIAGRAM .........s:scssccsessssssersesseaseerenenensenees 19~23 EXPLODED VIEWS (Mechanica! parts)..
TERMINAL GUIDE OF IC’S, TRANSISTORS AND REPLACEMENT PARTS LIST ............0+0000+
DIODES. .........sscessssesnsersvsnnssssnsnsesssessensencesenennerenernenenseseneoss 23
Mi ACCESSORIES
———"
3-core flat cable L-type cable Stereo connection cables
(REX0346) : (SJP2257T) : (SJP2249-3)
Amplifier Make connections in the numbered sequence by
using the included cables.
Stereo connection cable
ON ag cunnent
OFF 7" SENSOR
AC OUTLET ge yy
©) [ed
UNSWITCHED:
White (L)
Red (R) =
SYSTEM
CONTROL CONTROL
[1] Connect the stereo connection cables.
[2] Connect the L-type cable.
[3] Connect the flat cable.
SYSTEM CONTROL OUT
This terminal is used to connect a Technics compact
disc player or a Technics stereo graphic equalizer with
the “SYSTEM CONTROL IN” terminal.
This terminal is used to connect a Technics muiti com-
pact disc player with the “CONTROL” terminal.
RAO Aw Cassette deck
SYSTEM
IN QUT (TO CD)
INE OU)
mn Goose
SYSTEM CONTROL OUT} (CONTROL

| Rs-x102
Mi LOCATION OF CONTROLS
AUTO REVERSE recone marsax DECK 2
Controls common to both tape decks Indicators common to both tape decks
[4] DECK ON/OFF switch (DECK)
RC1 PLAY <@ PLAY RC2
[2] Synchro-start button (SYNCHRO START)
This button can be used to start a tape-to-tape recording,
simultaneously starting tape deck 1 (the playback deck) and
tape deck 2 (the recording deck).
[A] Input level meter
During playback, this meter indicates the level of the record-
ed sound source.
[3]
Tape-to-tape
recording
tape-speed
selector
During
recording,
it
indicates
the
level
being
recorded,
(TAPE
EDIT
SPEED)
adjusted
by
the
recording-level
control.
This selector can be used to select the recording speed
when a tape-to-tape recording is made.
Dolby noise-reduction indicator (DOLBY NR)
This indicator illuminates when the Dolby noise-reduction
[4]
Recording-level
contro!
(REC
LEVEL)
button
is
pressed.
This control can be used to regulate the recording level of
tape deck 2.
Reverse-mode indicators ( = , c> , o>)
One of these indicators illuminates to show which of the
reverse modes was selected by the reverse-mode selector.
[5] Reverse-mode selector (REVERSE MODE)
This selector can be used for selection of the reverse mode
(for either playback or recording).
[D] Edit-recording indicators
(EDIT MODE, CD, x1, x2)
The words “EDIT MODE” and “x1 (or "x 2”) indicator will
[6]
Dolby
noise-reduction
button
(DOLBY
NR)
illuminate
when
a
tape-to-tape
recording
is
made.
This
button
is
used
to
reduce
the
“hissing”
noise
heard
from
The
words
“EDIT
MODE”
and
“CD”
indicator
will
illuminate
the
tape.
when
a
CD
edit-recording
is
made.

RS-X102
Tape deck 1
STEREO DOUBLE CASSETTE DECK
Act
mae
Tape deck 2
CEB die ac2
okey ne eee} Toe)
oo. SE Ec
Controls applicable to tape deck 1 and/or 2
[1] Cassette holder
[2] Eject button (4 EJECT)
This button can be used to open the cassette holder.
[3] Pause button (If PAUSE)
This button can be used to temporarily stop the tape
playback or recording, on tape deck 2 only.
[4] Record button (REC)
This button can be used to change tape deck 2 to the recor-
ding stand-by mode.
[5] Automatic-record-muting button
(AUTO REC MUTE)
This button can be used to make a silent interval on the tape
during recording, on tape deck 2 only.
[6] Fast-forward/cue, rewind/review buttons
(<<, >)
These buttons are used to advance or rewind the tape. Dur-
ing playback, these buttons are used to cue or review while
listening to the contents at high speed.
Forward-side playback button (> PLAY)
This button can be used to start the playback or recording of
side ‘‘A”’ of the cassette in tape deck 2 only.
(The tape will then begin moving in the left-to-right direction.)
Stop button (lf STOP)
This button can be used to stop tape movement.
[9] Reverse-side playback button (<] PLAY)
This button can be used to start the playback or recording of
side "B" of the cassette in tape deck 2 only.
(The tape will then begin moving in the right-to-left direction.)
Tape counter reset button (RESET)
This button can be used to reset the tape counter indication
(for tape deck 2 only) to “000”.
Fast-forwardicue button (>>)
This button is used to advance the tape. During playback this
button is used to cue the contents at high speed.
[12] Rewind/review button (<<<)
This button is used to rewind the tape. During playback this
button is used to review the contents at high speed.
Indicators applicable only to deck 1 or 2
RC.1 PLAY
DOLBY NR
= CD OD
EDIT MODE.
x1 CD x2
[A] Forward-side indicator (>)
This indicator illuminates during playback or recording on
tape deck 2 to indicate that side ‘A’ of the tape is being
used.
Reverse-side indicator (<<)
This indicator illuminates during playback or recording on
tape deck 2 to indicate that side ‘‘B" of the tape is being
used.
Remote-control indicator (R.C.1/R.C.2)
This indicator illuminates to indicate that this tape deck
can now be controlled by the remote-control transmitter
(included with tuner).
[D] Playback indicator (PLAY)
When this indicator illuminates steadily, it indicates that this
tape deck is in the playback mode or the recording mode (for
tape deck 2 only).
When it flashes continually, this is an indication that tape
deck 2 is in the pause mode or the recording stand-by mode.
[E] Recording indicator (EZ)
This indicator illuminates to indicate that tape deck 2 is in the
recording stand-by mode or is recording.
[F] Tape deck 2 counter
Indicates the amount of tape movement.

RS-X102
Mi DISASSEMBLY INSTRUCTIONS
“ATTENTION SERVICER”
Some chassis components may have sharp edges. Be careful when disassembling and servicing.
Ref. No.
2
i
NO;
|
Removal
of
the
cabinet
Removal of the front panel ass’y |
Procedure Procedure
«Remove the 6 screws (O~@).
Ref. No.
3
Procedure
1-2-3
Removal of the main P.C.B.
Rear panel
Front panel ass’y
2. Remove the 2 connectors (CP1, CP2).
3. Remove the 5 flat cables (CN3, CN4, CN5, CN6,
CN8).
4. Remove the front panel ass’y in the direction of
arrow.
How to remove the flat cable
¢Pull out the flat cable while 1. Lift the connector.
pressing the connector. 2. Pull out the flat cable.
(CN3, CN5, CN8) (CN4, CN6)
Pa
Flat cable
5
My Connector
, Ole at
Connector
2. Remove the 5 screws (O~@).

Removal of the mechanism units
(DECK 1, DECK 2)
Ref. No.
4 Removal of the FL meter P.C.B.
Procedure
1-2-5
Procedure
FL meter P.C.B.
Cassette holder
(DECK 1)
Eject button
(DECK 1)
Eject button
(DECK 2)
1. Remove the 2 screws (O, @).
2. Remove the FL meter P.C.B. in the direction of
arrow.
; ; Cassette holder
Mechanism
unit
(DECK
2)
r Ref. No.
6
Procedure
1-2—-4—5-6
Removal of the mechanism angle
@ Removal of the mechanism unit (DECK 1)
1. Press the eject button and open the cassette
holder.
2. Remove the 4 screws (@~®).
i Removal of the mechanism unit (DECK 2)
1. Press the eject button and open the cassette
holder.
2. Remove the 4 screws (@~®).
Removal of the eject angle, eject
buttons, and eject lever
Procedure ox
Eject rod——____ : 2S
YA
Eject lever
Eject button
(DECK 1)
i. 4
©
Eject button
(DECK 2)
3. Pull out the claw of the eject 4. Turn the eject lever in the
rod in the direction of direction of arrow @, and
1. Release the 1 claw. arrow ®, remove the eject remove the eject lever in the
2. Pull out the eject angle in the buttons and the eject rod in direction of arrow @.
direction
of
arrow
®.
the
direction
of
arrow
@.
—6-—

RS-X102
Removal of the cassette lid Removal of the cassette holder
(DECK 1, DECK 2) (DECK 1, DECK 2)
Procedure
1324-5
—6—7-8--9
Cassette lid
(DECK 1)
Cassette lid ©
Damper gear ass’y (R)
(DECK 2)
e Lift the cassette lid in the direction of arrow @ and
remove it in the direction of arrow ©. 1. Remove the 2 screws (O, @).
2. Remove the damper gear ass’y (L) and damper gear
Ref.
No.
:
ass’y
(R).
10 Removal of the operation P.C.B.
Procedure
1-24-56
78-910
Cassette holder (DECK 1)
SS
SN
Rec level knob XS
; & x
SS
1. Remove the rec level knob.
. Remove the springs in the direction of arrow ©.
. Remove the ribs in the direction of arrow ©.
. Remove the cassette holder in the direction of
arrow @.
oe ©
3. Release the 14 claws.
| 2. Remove the 4 screws (@~®@).

RS-X102
Ref. No. P
11
|
How
to
check
the
main
P.C.B.
|
0
Ps
Procedure %
1-11
Rear panel
Front panel ass’y
3. Remove the 4 screws (O~®).
4. Remove the front panel ass’y in the direction of 5. Remove the bottom board ass’y.
arrow. 6. Reinstall the front panel ass’y to the main P.C.B.

RS-X102
@ INFORMATION ON POWER SUPPLY FIXTURE
* LOCATION
(Front view) (Rear view)
Voltage selector
(110/127 V/220 V/240 V)
Turntable terminal (DC 12V, 0.1A)
Spare terminal (AC 16V, 0.16A)
Tuner terminal (AC 9V, 0.6A)
Tape Deck terminal (AC 11V, 1A x2)
Power switch
AC cord
(AC 50/60 Hz 110/127/220/240V)
FL Display terminal (AC 3V, 0.2A)
¢ SCHEMATIC DIAGRAM (Reference)
Spare
01
0.0
|
AC
16V
0.16A
Turntable
OC12V O.1A
r
|
Fuse |
F1(250V 1A) |
L
eT
Fuse
F3 (125V 1A)
| eerie |
4
|
4
|
4
VOLTAGE
SELECTOR
Haare
| Tuner
| ACQV 0.68
BRN
f
'
Fuse
F4 (125V 2A)
to SA
(AC SOHz/60Hz
1¥0V/127V/220V /240V)
{
Tape
Deck
t
fesse
ACI
1Ax2
{ | Fuse
3K
Power
Supply
Fixture
Parts
No.
|
saris
©
(E,
EG)
af
as.....ccccccscsesseeeeeee
$ZZA1062C
u
!
*
(EB)
area
..
SZZA1063C|
|
y
FE
(125v
0A)
C(GN)
Blea
scrinccns
canst
chs
SZZA1064C|
|
ee
ea
©
(GO)
area.
ccecssesseesesseeeeees
SZZA1065C
1
eee
ad
\
FL
Display
!
GRY
AC3V
0.28
{ O
rar eace
¢« HOW TO CONNECT
Voltage
controller
Power
Supply
Fixture
MAIN
P.C.B.
(1) AC IN Supply the same voltage as indicated on the
© voltage selector of power supply Fixture.

RS-X102 |
MIMEASUREMENTS
AND
ADJUSTMENTS
Measurement Condition
Rec. level control; Maximum ¢ Dolby NR selector switch; Off
¢ Reverse-mode selector switch; —_~ © Make sure heads are clean
¢ Tape-to-tape-recording tape-speed selector; X1 e Make sure capstan and pressure roller are clean
¢ Judgeable room temperature 20+5°C (68+9° F)
Measuring instrument
¢ EVM (Electronic Voltmeter) ¢ ATT (Attenuator)
* Oscilloscope e¢ DC voltmeter
¢ Digital frequency counter ¢ Resistor (600Q)
¢ AF oscillator
Test tape
¢
Head
azimuth
adjustment
(8kHz,
—20dB);
QZZCFM
¢
Playback
gain
adjustment
(315Hz,
0dB);
QZZCFM
*
Tape
speed
adjustment
(3kHz,
—
10dB);
QZZCWAT
©
Overall
frequency
response,
Overall
gain
adjustment
¢ Playback frequency response (315Hz, 12.5kHz, 10kHz, Normal reference blank tape ; QZZCRA
8kHz,
4kHz,
1kHz,
250Hz,
125Hz,
63Hz,
—20dB);
CrO,
reference
blank
tape;
QZZCRX
QZZCFM
Metal
reference
blank
tape;
QZZCRZ
e Adjustment Points
MAIN PC.B. (Leh) (Roh)
mA OVERALL FREQUENCY RESPONSE ADJ.
DECK 2: VR303(Lch} {VR302 (Recht
PLAYBACK GAIN ADu.
DECK I: VR3(Lch {VR4(Rch)}
TAPE SPEED ADJ.
DECK 2: VR5(Lch) {VRE(Rch)}
DECK 2 :vR902 (XI),
VR9OK X2)
DECK I: VRSO3(X1}
vré [][9](9][9]
VR302
vR903 [9] [@] [@]VR90!
vR902 VR301 4 vrs |)
He
ERASE
CURRENT
ADv.
1c901
|
DECK 2: vR30I
ERASE CURRENT
MODE TEST POINT ADJ. TEST POINT
(Soldered Surface) (DECK 2)
OVERALL GAIN ADu.
VR7 [@ DECK 2: VR7(Lch) {VR8(Rch)}