Onkyo TA-2130 User manual

ONKYO
SERVICE
MANUAL
TA-2130
OM3263
STEREO CASSETTE
TAPE DECK
MODEL TA-2130
Black models
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK “4 ON
THE SCHEMATIC DIAGRAM AND IN THE PARTS
LIST ARE CRITICAL FOR RISK OF FIRE AND
ELECTRIC SHOCK. REPLACE THESE COM-
PONENTS WITH ONKYO PARTS WHOSE PARTS
NUMBERS APPEAR AS SHOWN IN THIS MANUAL.
MAKE LEAKAGE-CURRENT OR RESISTANCE
MEASUREMENTS TO DETERMINE- THAT
EXPOSED PARTS ARE ACCEPTABLY IN-—
SULATED FROM THE SUPPLY CIRCUIT BEFORE
RETURNING THE APPLIANCE TO THE
CUSTOMER.
ONKYO.
AUDIO COMPONENTS
SPECIFICATIONS
Track System: 4-tracks, 2-channels
Erasing System: AC erase
Tape Speed: 4.8 cm/sec (1-7/8 i.p.s.)
Wow and Flutter: 0.06% (WRMS)
Frequency Response: 20—15,000Hz (Normal)
(30—14,000Hz +3dB)
20—16,000Hz (High)
(30—15,000Hz +3dB)
20—17,000Hz (Metal)
(30—16,000Hz +3dB)
Dolby NR off: 58dB (metal position tape)
A noise reduction of 10dB above 5kHz
and 5dB at 1kHz is possibile with Dolby B
NR. A noise reduction of 20dB at 5kKHz is
possible with Dolby C NR.
Microphone jacks: 2
Input sensitivity: 0.6mV/600 ohms
Input impedance: 2.7 kohms
Line IN: 2
Input sensitivity: 6OmV
Input impedance: 50 kohms
Headphone jack: 1
Optimum load impedance:
8 to 200 ohms
Line OUT: 2
Standard output level: 500mvV (0dB)
Optimum load impedance: over
50 kohms
DC servo motor x 1; DC motor x 1
REC/PB: Special Hard Permalloy x 1;
Erase head: Ferrite x 1
S/N Ratio:
Input Jacks:
Outputs:
Motors:
Heads:
—~{—

TA-2130
Power Supply Rating: AC 120V, 60Hz
Power Consumption: 18 watts
Dimensions: 495(W) x 112(H) x 262(D)mm
(17-1/8" x 4-3/8" x 10-3/8")
Weight: 4.1 kg. (9.1 Ibs.)
Specifications
and
external
appearance
are
subject
to
change
without
notice
because
of
product
improvements.
SERVICE PROCEDURES
1. Replacing the lamp
This unit used the lamp listed below.
Parts No.
210090
Circuit No.
PL9OI
Description
PLI4V 150mA
Caution: Before replacing the lamp. Be sure to unplug the
power supply cable.
2. Instruction resistance measurement
Connect the insulating-resistance tester between the plug of
power supply cord and chassis.
Specifications; 500V more than 1OMQ2
3. Replacement of power supply cord
There are two power supply cord outlets on the strainrelief.
Insert them in prescribed direction to ensure safety. AS-UC-
3 (UD<120V> model) should be inserted lengthwise and
other types of cords should be inserted horizontally.
Power Supply Cord Power Supply Cord
Horizontal
direction
length wise
direction
4. Replacing the Hall ICs
Cautions: As the position of leg of DN6838 and DN838K
differ, use the same Hall IC when replacing.
(DN6838 (222558)
t
5mm
{ Holder
§N2719014 73
DN838 K (222470)
Cut
Printed
side
{
SN27190251
~m
5. Method for removing BOTTOM BOARD
(refer to exploded view of chassis)
1. Remove top cover.
2. Remove front panel.
3. Remove the 2 mounting screws of the main PC board
(NAAF-2947- 1 ).
4. Remove the 2 holders from the PC board.
5S. Remove the 1 fastening screw of the Power Switch
PC board (NAPS-2951-1).
6. Remove the holder from the PC board.
7. Remove the 4 fastening screws of the back panel and
bottom board.
8. Remove the 3 fastening screws of the front bracket
and bottom board.
9. Remove the ground terminal.
10. Remove the bottom board by taking from the lower
direction.
6. Mechanism operation
This mechanism consists of a capstan motor, reel motor,
and solenoid, with the power assist method by means of the
capstan motor. In the operation, there are 3 conditions:
STOP, PLAY, and CUE/REV. When the position is trig-
gered by the solenoid, by means of intermittent rotation of
the gear from the flywheel, as shown in Fig. 1, cyclic shift-
ing is done.
To go from STOP to PLAY, if the solenoid is pulied in
for 30ms, after about 150ms there is a shift to the PLAY
condition. From this condition, if the solenoid is again
pulled in, in that interval the condition shifts to CUE/
REV. However, to suppress heat generation in the solenoid,
the supply voltage must be reduced. If the power to the
solenoid is cut off, the head lowers, and the conuition
goes to STOP. In order to have a cyclic operation as stated
above, and to know the existing condition, a play switch is
provided, and this switch is ON for PLAY and OFF for
STOP (CUE/REV) is indefinite. When power is turned
ON, the mechanism makes use of an initializer.
PLAY
CUE/REV
Fig. 1
STOP

(AZ
9-)E-
(AZ9)
8+
o¢g
OV3H
BS
S140
=>
el
x
;
fa.
wd
ONI
advlef@H
vio
Lf).
E1LOD
YANG
(2204
)
4
YOLOW
3
Fate
g+
|
4334
fav
a-4
dvu.
Svia
GNI
dO
pt
Pe
<ord
(pOb1)
€0b7
<a
534-4
AN
Pr
dV
‘D3
O34
=
dower
|
AN
lOlO
fo}
_
MS
LW3d3y
Oel/sn
OL
|
@
|
Of
<3
2
eae
0
.
—
“angi
2a
cD
Ae
I
wanes
AB
‘dO
—
|
dwy
ovag
|
MS
74
7
IOLO
ay,
6)
1NO
3NI
|;
—-_—
Mn
—-
_
C)
JI
a3qaow
on!
|
IOYLNOD
dO
O°
IONLNOD
/
op
6)
NI
aN
3.10W3Y
oe
es
(ZO21)
Le
fF
|
°
1027
<i4
yagi
GN!
YaL3W
XdW
(pEly)Eely
(plea~zOea)
(vOZd)
YA
LONI
€1E€Q~10Ea
.
€0ZO
O
PLY
TTL
}
3.LNW
aNn
Tw]
(pOESd)
J
Move
c0ed
!
<
|
“af
SIW
Y3AING
Y3LIW
an
lOoed
(OvIN)6E14
dWYV
dH
D1
Ag
100
MA
DIN
WVHDVIG
40018

TA-2130
ADJUSTMENT PROCEDURES
PRECAUTIONS
1. Before adjustment, clean the following parts with an
alchol moinstend swab,
* record/playback head
* pinch roller
* erase head
* capstan
2. Do not use magnetized screwdriver for adjustments.
3. Demagnetize record/playback head with a head de-
magnetizer.
TEST EQUIPMENT/TOOLS REQUIRED:
Audio oscillator
Digital frequency counter
Connection of Lo
Item . Line input
instrument
Test tape
AC voltmeter
and oscillo-
scope to
LINE output
terminal
VTT-658
AC voltmeter
to terminals
TP-1 and
TP-2
MTT-150
) Head
azimuth
Playback
3
level
Frequency
counter to
P401. E head
read (loose
coupling)
METAL TAPE| REC
AC voltmeter
to LINE output
terminal
1kHz, —20dB
and
12kHz, —20dB
Bias
NEW XL-1190
current
REC
Frequency
counter to
TP-5
10: 1 cabie
Clock
—_
~ a)
N
VTVM
Attenuator
LINE IN
fig- 1
REC/PB
PAUSE
REC/PB
Oscilloscope
Attenuator
AC voltmeter
Non-magnetic screw driver
Blank tapes (completely erased)
NORMAL .................. NEW UD90
HIGH... 0... eee NEW XL-II90
METAL ..............0044. NEW MX60
Test tapes
VTT-658 10 KHz, —15dB
MTT-111 3 kHz, —10dB
MTT-150 Dolby level calibration
400Hz, tone 200nWb/m
indicator point
Frequency
Tape counter to MTT-111 Frequency | Semi-fixed 3,010 to
speed LINE output counter onthe motor | 3,020Hz
terminal
Maximum and
same phase
at channels
Head azimuth
SCrew
AC
voltmeter
AC
voltmeter
Frequency
counter
AC
voltmeter
AC
voltmeter
R-115(Ch.L)
R-116(Ch.R)
L-405 85kHz
R-471(Ch.L)
R-472(Ch. R)
Same level
at REC/PB
Input VR
maximum
Attenutor of
AF OSC output
Input VR
AC R-401(Ch.L) | Same level maximum
voltmeter R-402(Ch.R) |at REC/PB
Frequency
counter
160 to

PACKING VIEW
TA-2130
TP-1 TP-2
O oO
R116
L407 P.B LEVEL(R)
Riis
L408 P.B LEVEL (L)
TP-3 TP-4
R472 (R)
L40s R401 R402
REC LEVEL
BIAS
AOJ
(0) TP-5
R47HL) L]
R722
CLOCK
NAAF -2947
D MODEL
REF NO. PART NO. DESCRIPTION
7 1 29051517 Master carton box
. 2 29090987 Pad(L)
aS 3 29090988 Pad(R)
} 4 29100037A 650 x 500 Poly bag
5 282301 Sealing hook
6 260012 Damplon tape
7 Accessary bag ass’y
29341145 Instruction manual
2010095 Connection cable
29365019 Waranty card (N)
29358002E Service station list (N)
29100006A 350 x 250 Poly bag
G/W MODEL
REF NO. PART NO. DESCRIPTION
1 29051517 Master carton box
2 29090987 Pad(L)
3 29090988 Pad(R)
4 29100037A 650 x 500 Poly bag
5 282301 Sealing hook
6 260012 Damplon tape
7 Accessary bag ass’y
29341146 Instruction manual
29341163 Instruction manual (1)
NOTE 2010095 Connection cable
(N) : Only U.S.A. Model 25055018 Conversion plug (CV-K-2) (W)
(W) : Only 120/220V Model 29100006A 350 x 250 Poly bag

(0)
WANUOASNVUL
WAMOd
‘O9S6-LdN
TPZOOEZ
(A)
‘GaIdIOddS
UHHWNN
LUVd
HLIM
AINO
dOWVITdda
“NOOHS
OlLodTA
GQNV
duet
dO
ASTM
wWOA
TVOILINO
AaV
TA-2130
WY
XUVW
Ad
GaISLLNACI
SINANOdWOD
AHL
‘ALON
YANUOASNVUL
UAMOd
“Oa9I
ron)
vOCOOET
3)
UAWUYOASNVUL WAMOd ‘D9S6-LdN SOZOOEZ
(qd)
UANUOASNVUL
AAMOd
“A9S6-LdN
E0ZOOEZ
1To6LY
NAOT+SLLE
MAUOS
LHDIL-dVL
8s010€7res
Or
Od
Av+d9°7
MAUS
CVAH-NVd
pO9TPHIZ8
6€
AOOT4+OLLp
MAYOS
LHDIL-dVL
6010rr0E8
8E
Odd8+dLLE
MAYOS
LHOIL-dVL
O800€vEEs
LE
AS+MLLE
MAUMOS
LHOIL-dVL
8s800€TIEs
9€
AGOI+SLLE
MAUOS
LHOIL-dVL
8010€rrEs
SE
OMA8+SLLE
MAUOS
LHDIL-dVL 8800€rrEs ve
AT SZOSLILZ EE
ALV1d UVATO
L6ET6I8Z
I€
UACIOH
vZSO6T
LZ
O€
Japoul
AOPZ
ATUO
:(O)
(ff)
SVAONA
OL6ZZE8TZ
LZ
Japowl
AVZZ/AOZT
AIUO
“(M)
(MOd)
AONN
S6LZZE8Z
97
[apowl
AQZZ
ATUO
:(D)
(IOA)
FONN
—s-
BS
PBTZERZ
SZ
Japowl
AQZT
ATUO
(dq)
‘LON
(IVd)FONN
9F6ZZE8TZ
rZ
TANVd
LNOUA
~——sIZIZOONT
IZ
ASSV
UAAOIdOL
1-9vEP8T8zZ
0Z
Guvod
Od
AVTdSIC
P-EV6C-SIGVN
P-EPSEOONT
sn
ONIUdS
PECOSTLZ
6I1
XA.SSV
UAdWVd
7870087
ST
GUVOd
Od
OI
TIVH
‘T-SS67-DLAVN
=
I-SSSEOONT
Ln
(VD)
ONIMdS
ZLZO81LZ
LI
ASSV
CUvod
MOGCNIM
ryIEO00rs8z
9T
Od
IOULNOOD
ALOWAY
‘T-7S67-UVVN
~~
I-vSSLOONT
9n
dI'l
ALLASSVO
ZIEOOP3Z
SI
A.SSV
GuvoOd
Od
(dIMS)
4ONM
VOv67TZE8Z
a!
TIVNINUAL ANOHd
AVAH
‘I-7S67-UVVN
~~
I-TSSLOONT
cn
NAOLXPNMA LON AONVIA OLOvIv98 €T
ASSV
dvod
AAITAUNIVULS
OSLOOELZ
IY
Od
HOLIMS
UAMOd
‘T-1S67-SdVN_I-ITSSLOONT
mY
(0)
TANVd
NOVA
SIOTZILZ
A.SSV
(M)
TANVd
MOVE
886071
LZ
GUVOd
Od
UNV
HOUVAS
‘1T-0S67-OLAVN
T-OSSLOONT
En
())
TANWd
MOV
986071
LZ
A.SSV
GUVO"d
Od
(dq)
TANVd
MOVE
S8607I
LZ
Ol
UAIITMNWV
MOVE
AV
1d
‘T-667-SIGVN
=
T-67SLOONT
wn
WACTOH
OZSO6TLZ
8
(O/M/D)
ASSV
ALV1Id
YOLVOIGNI
SPZOE
T8Z
L
CUvVOd
Od
NIVW
‘V7-Lb67-AVVN
V7-LPSEOONT
ALV1d
MOV
6LIEETS8Z
9
(dq)
A.SSV
(MOd)
LNIOL
V690€LZLZ
¢
GUVOd
Od
NIVW
‘7-LP67-AVVN
=
7-LPSEOONT
In
(9)
LAMOVU
OZIIPILZ
4
A.SSV
WSINVHOANW
AdVL
‘86-WaN
90IPrZ
IZ
Guvod
WOLLOG
VZZIOOTLZ
€
(M)
MOLOATAS
ADVLIOA
‘d8SZI-SSN
EZISIOSZ
7068S
YALNNOD
ILI
TO9bZ
4
(0)
GUOO
ATddNS
WAMOd
‘VVS-SV
SITEST
SV(ACGITS)€ONA
SE6TTEBTZ
7-1
(M/D)
GUOD
ATddNS
UWAMOd
‘AAO-SV
V67IESZ
(W)
ALV1d
NOILVYOOAG
9976187
I-T
(d)
YOO
ATddNS
AUAMOd
“€-ON-SV
O660€
SZ
Told
Y
SV
LAMOVUd
LNOUW
6SEOTTLZ
I
NOIidIH9S3Q
‘ONLYWd
‘ON'S3Y
NOIlidI¥9S3G)
‘ONLYWd
‘ON'45H
1SI1
SLYVd-MSIA
GS001dX3-SISSVHD

CHASSIS-EXPLODED VIEW
TA-2130

TA-2130
MICROCOMPUTER (LM6405L-1994)
In the microcomputer, the operating voltage is high with the NMOS type LM6405L using Vpp = 6V. The clock uses a
condenser/resistor
oscillator
and
is
designed
for
a
frequency
of
170KHz,
(Frequency
measurement
can
be
made
by
connec-
tion through a LOOKQ ~ 330KQ2 to pin No. 1.)
Port .
XTAL Connected to resistor of oscillator for clock use
BIAS OUT Output port for turning bias oscillator ON/OFF: Oscillation with 0 level
LINE MUTE
REC. REC. MUTE
Output port for line muting: Muting with 0 level
Output port for recording muting: Muting with 0 level
CASSETTE IN Input for cassette loading detection: Cassette loading with 0 level
ROTATION SENSOR jj Pulse input rotation detection
System reset for microcomputer use
Input for automatic detection of chrome tape: Chrome use hole detection with 1 level
METAL Input for automatic detection of metal tape: Metal use hole detection with | level
10 PLAY SWITCH Input for PLAY position detection: PLAY position with 0 level
J REC. INH Lug detection input for recording prevention: Disable with 1 level
12 REEL FF Output for reel motor rotation in fast forward direction: Rotation with 1 level
<form Reel motor rotation selection: Slow with 1 Fast with 0
Ps RvB nmin ties
PAUSE LED LED output for PAUSE indication: Lights with 0
ci feet
ps [secre
nT
LED output for REC indication: Lights with 0
Output for solenoid pull in: Pull in with 0
Output for solenoid pull in hold (ow power): Pull in hold with 0
Input for microcomputer chip inspection (Normally connected to Vgs)
Ground terminal
70 ps/120 us For input to pins 8, 9, output for play back equalizer selection
a NORMAL For input to pins 8, 9, output for record equalizer selection (NORMAL)
= HIGH For input to pins 8, 9, output for record equalizer selection (HIGH)
METAL For input to pins 8, 9, output for record equalizer selection (METAL)
26 SINGLE SIG, Input for recording signal detection for single repeat when in low speed
27 AMCS SIG,
Input for recording signal detection for AMCS use when in high speed
REPEAT OFF/ON Input for repeat operation ON/OFF: Operates with 0
—— SINGLE/FULL Selection of SINGLE/FULL operation: Full repeat with 0

TA-2130 |
P OFF Input for power off detection: Off with 0
TIMER REC Input for timer recording ON/OFF: Operates with 0
TIMER
PLAY
Input
for
timer
play
back
ON/OFF:
Operates
with
0
AMCS Key input to cause AMCS operation: Operation with 0
Key input to cause rewinding: Operation with 0
Key input to cause fast forward operation: Operation with 0
STOP Key input to cause stop operation: Operation with 0
AUTO
SPACE
Key
input
to
cause
auto
space
operation:
Operation
with
0
PAUSE Key input to cause pause or recording pause: Operation with 0
REC
Key
input
pushed
together
with
PLAY
key
to
cause
recording:
Operation
with
0
PLAY
Key
input
for
play
back
or
recording:
Operation
with
0
Power source terminal
Connects to resistor and condenser of oscillator for clock
NOTE 0: Low level
1: High level
+VODD
BIAS OUT
LINE MUTE PLAY
REC MUTE REC
O—{CASSET IN) PAUSE
ROTATION
SENSER
AUTO
SPACE
SW
KEY
INPUT
RESET STOP
O—{
CrOQ2
)
FF
O—+{ METAL REW
O—{
PLAY
SW)
AMCS
O—{ REC INH) TIMER PLAY
FWO TIMER REC
rect
Ley
POWER
OFF
(L:
POWER
OFF)
(PLAY
:H)
O-PLAY
SINGLE
/
FULL
(SINGLE—H
Levet
)
PLAY
LED
)
REPEAT
ON/OFF
(
REPEAT
OFF-H
Level)
AMCS SIGNAL
SINGLE REPEAT SIGNAL
/m» §
PAUSE LED <a
ym» i
REC LED PT
SOL (POWER UP)
METAL
SOL
(Cueing)
HIGH
NORMAL
_
70
/120pS

TA-2130
IC BLOCK DIAGRAM
NJM-2068D-D
S)
INPUTS
®
UTPUT
( TOP VIEW )
CX20187 (DOLBY N.R)
BIC 1 42|REC/ PB
ON/OFF [2 | IREF
LINE IN [3 | LINE IN
Vcc 4 139] Vee
PB IN | 5 | 138) PB IN
MPX OUT [ 6 | MPX OUT
REC IN 136] REC IN
GND | 8 | '35] GNO
LINE OUT[ 9 | LINE OUT
SSK 10 | 133] SSK
VF IN [11 32) VF IN
HPF H [12] 31) HPF H
TCH2
13
|
30}
TCH2
TCH} 29] TCH1
WT H L145 WT H
TCL2 16 | TCL2
TCU 26] TCL
WIL 18) WT L
HPF
Lt
[19]
HPF
L
ANT S /23|] ANT S
REC OUT | 21) 122] REC OUT
—~10—