Onkyo TA-R500 User manual

ONKYO
SERVICE
MANUAL
TA-R500
Ref. No. 3364
STEREO
CASSETTE
TAPE
DECK
MODEL
TA-R500
Black model
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS INDENTIFIED BY MARK AON
THE SCHEMATIC DIAGRAM AND IN THE
PARTS LIST ARE CRITICAL FOR RISK OF FIRE
AND ELECTRIC SHOCK. REPLACE THESE
COMPONENTS 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
INSULATED FROM THE SUPPLY CIRCUIT
BEFORE RETURNING THE APPLIANCE TO
THE CUSTOMER.
SPECIFICATIONS
Track Format: 4-tracks, 2-channels
Erasing System: AC erase
Tape Speed: 4.8 cm/sec. (1-7/8 i.p.s.)
Wow and Flutter: 0.055% (WRMS)
Frequency Response: 20 — 17,000Hz (Normal)
(30 — 16,000Hz+3dB)
20 — 18,000Hz (High)
(30 — 17,000Hz+3dB)
20 — 19,000Hz (Metal)
(30 — 18,000Hz+ 3dB)
ONKYO.
AUDIO COMPONENTS
120V AC, 60Hz
220V AC, S50Hz
120 or 220V AC, 50/60Hz
S/N Ratio: 58cB (metal tape, Dolby NR off)
A noise reduction of 10dB above 5kHz and
5dB at 1kHz is possible with Dolby BNR. A
noise reduction of 20dB at 5kHz is possible
: with Dolby C NR.
Input Jacks: Line IN: 2
Input sensitivity: 6OmMV
Input impedance: 50kohms
Outputs: Line OUT: 2
Standard output level: 500mV (OdB)
Optimum load impedance: over 50 kohms
Headphone jack: 1
Optimum load impedance: 8 to 200 ohms
Motors: DC servo motor: 1
DC motor: 2
Heaas: REC/PB: Special Hard Permalloy x 1;
Erase head: Ferrite x 1
Power Supply Rating: U.K. and Australian models:
AC 240V, 50Hz
U.S.A. models:
AC 120V, 60Hz
Worldwide models:
AC 120V and 220V switchable, 50/60Hz
Power Consumption: 22 watts
Dimensions: 435(W) x 132(H) x 366(D)mm
(17-1/8" x 5-3/16" x 14-7/16")
Weight: 6.2kg. (13.7 Ibs.)
Supplied Accessories: Connecting cablex2
RC-169K remote control transmitter
UM-4/R03/AAA batteries x2
Specifications and external appearance are subject to change
without notice because of product improvements.

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IC BLOCK DIAGRAM
CXA1331S (DOLBY NR)
BA6800AS (METER DRIVE)
TA-R500
[4
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PIN CONNECTION
[PIN
NO.
_[40/39]38]37]36)35|34)33]92|31[30|29]/28|27|26|25|24)23|22)21|20]19|18]17]16]1514[13]12]13[10]
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comsncron [35> o(ala [a8 »(8[3[a|a]0[515
Note 1.)NP------------No pin.
ZIN Cee No connection
SPL, F2---+-+-+- Filament
4)1GA~TGA----Grid
5J1LGB~2GB-----Grid
Rch PEAK HOLD CR
Rech AC IN

MICRO COMPUTER (HD614049SA39)
HF WO DIRECTION
ay
i
REMOTCONTROL
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BLOCK DISPLAY REW “eo
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7 B-REC. INH vee
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02 AUTO SPACE
7,
METAL
FWD:
PLAY
|
= REV- PLAY |
BLOCK ON/OFF
ve | BIAS CONT
ET
METAL
OPTICAL END HIGH |
ROTATION SENSOR NORMAL
P— OFF NOT USED
ASS: DOWN
ASSIST © | ELAP/REMA
MOTOR Ass.up_
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moror @ | |reet er NRSC IN COUNTER
OTOR
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capstan \ey ENCAPSTAN CONT. — non +5
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TA-R500
MICRO COMPUTER (HD614049SA39)
Terminal description
REV. DIRECTION LED REV. Direction display output
FWD. DIRECTION LED FWD. Direction display output
REMOTE-CONTROL IN Remote control input
Reverse mode switch input
2 Reverse mode switch input
. DISPLAY Block repeat display output
Recording/play back select output
Line muting output
mie Clim iz isle
ee
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EC MUTE recording muting output
10
1i~i4 MECHA. POSITION A~D Mecha position sensor switch input
15 SIDE-B REC. INHIBITING Side-B record inhibit pin sensor
CASSETTE IN Cassette tape sensor switch input
. INHIBITING Side-A record inhibit pin sensor
ape type sensor switch input
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BLOCK REPEAT ON/OFF Block repeat ON/OFF select switch
F.T
OPTICAL END SENSOR
ROTATION SENSOR
aro
IJ bo Sw ae Bend 7
Optical tape end detection input
Reel rotation sensor input
Power off detection input
Assist motor REV-PLAY drive output
Assist motor FWD-PLAY drive output
Ree} motor REW rotation control output
r)
tr ~
2) —
Law |
Mm] t a
_. REW
FF
-PLAY
Reel motor FF rotation contro! output
Ko wo
3 Reel motor rotation torque
_— a
Pea | bo ee |
Capstan rotation control output
Master-slave communication clock output
One Lae
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CLOCK
NRSC OU Serial code reciprocal control output
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ms TIO
— 0
6 = > Z
— v2) ‘e) é
Master-slave communication data output
+5¥V
| Master-slave communication clock output
| Serial code reciprocal control output
| Master-slave communication data ouput
36 NRSC IN
37
COUNTER CLEAR
39
40 PNOTUSED
42
43
44
REV play key input
46 FWD play key input
47 AUTO-SPACE KEY Auto-space key input
Record key input
ao oO
EC KEY
omputer system reset
5
= — mM +7) =
unr
—
ra
Computer test input (normally used at Vcc)
_ wo wn wn
+ (T] = ~ [T] <2) ™ ~
OSC1, OSC? stem clock oscillator terminal
GND GND
PAUSE KEY Pause key input
STOP KEY top key input
B-AMCS KEY Side-B AMSC key input
F-AMCS KEY Side-A AMSC key input
EW KEY
F KEY
REW key input
FF key input
REV play display output
FWD play display output
Pause display output
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Record display output
i
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TA-R500
CHASSIS-EXPLODED VIEW

TA-R500
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TA-R500
PRINTED CIRCUIT BOARD PARTS LIST
NAAF-3860-2
CIRCUIT NO. PART NO.
Q101
Q201
Q209
Q301, Q302
Q401
Q402
Q405
Q406
Q501
Q601
Q701
Q704, Q706
Q709
Q909
Q910
Q103, Q104
Q203-Q207
Q208
Q403, Q404
Q407, Q408
Q409
O410, Q411
Q412
Q0413
0414, Q415
Q602
Q603
Q605, Q606
Q702
Q703
Q705
Q707
Q708
Q710
QO711
Q712
Q713
Q714
Q715
Q901, Q902
Q903, Q905
0904, Q906
Q907
Q908
Q911
Q912
Q913, Q914
Q915
ics
222956
22240316
222502
222652
222808
22240240
222959
222465
222940
22240147
22240340
222953
222465
222465
22278005SMIT
Transistors
2213284 or
2213285
221281
2213090
2212794 or
2212795
221282
221281
2211455
2201540
221282
2211544
221281
2211455
2211706
221281
2212855 or
2212853
2201/2115 or
2202116
221281
2201540
2211255
221282
2211255
221282
2213090
221281
2212304 or
2211945
2213284 or
2213285
2213074
2201285 or
2201286
2201275 or
2201276
2213284 or
2213285
2202115 or
2202116
2212600
2211455
DESCRIPTION
NJM-2068D-D
CXA1331S
NJM-4558DX
MS218L
M5218P
IR2C30
uPC1297CA
NJM-4558D
BA335H
uPC1330HA
HD-614049SA39
M-S54544AL
NJM-4558D
NJM-4558D
78M05
2SC1740S-R or
2SC17408-S
DTC114YS
DTAII4YS
28D 1468-R or
2SD1468-S
DTC144ES
DTCII4YS
2SA1015-GR
28D947
DTC144ES
28C1959-Y
DTCI114YS
2SA1015-GR
28D655-F
DTCLI4YS
2SB1068-U or
2SB1068-K
28D2061-E or
28D2061-F
DTCI14Y$
2$D947
28C1815-GR
DTC144ES
28C1815-GR
DTC144ES
DTAIL4YS
DTCHI4YS
28K381-D or
25K246-GR
28C1740S-R or
2SC17408-S
2SA933R
28D882-QO or
2SD882-P
2S8B772-Q or
28B772-P
25C1740S-R or
28C1740S-S
28D2061-E or
28D2061-F
DTA124ES
2SA1015-GR
CIRCUIT NO.
D201, D202
D203-D206
D601, D602
D605, D606
D701
D702, D703
D704
D705
D706
D901-D904
D905-D909
D910, D911
D912
D913
D914
D915
D916
D917
L201, L202
L401, L402
L403, L404
L405, L406
L407, L408
L409
X701
PART NO.
Diodes
224150753
223163
223163
223150,
223124 or
223145
224150683
223163
224150562
223163
224150512
22380029F
22380035
223163
224150512
224151303
224450623
223163
224152001
224150512
Coils
233408
231089
231082
233314
231127
231152
Ceramic osc
3010149
DESCRIPTION
OSAZ7.5Z
188133
1$$133
US1040,
182473 or
1$82076TD
05AZ6.8Z
188133
05AZ5.6Y
1$8133
05AZ5.1Y
HER102
GP104003E
1$$133
OSAZS.1Y
OSAZ13Z
MTZ6.2C
188133
OSAZ20%
05AZ5.1Y
NMC-6080
NCH-2137
NCH-2130
NCH-2097
NCH-4183
NLO-2051
CST6.00MGW

CIRCUIT NO. PART NO.
C105, C106
C117, C118
C203-C206
C207, C208
C217, C218
C227, C228
C231, C232
C301, C302
C4il, C412
C413, C414
C415, C416
C423, C425
C439, C440
C441, C442
C448, C449
C451, C452
C453
C456
C501
C505
C601
C605, C607
C701
C703
C706
C708
C907, C908
C915, C916
C917
C923
C924
C925
C926
C928, C929
C931
C932
C935, C936
R119, R120
R403, R404
R445, R446
R708
R712
R730
R901, R9O2
R9IS
R916
R917
R927
Capacitors
391981017
391984717
391780229
391741009
391780229
391944717
391780229
391741009
391741009
354781099
391741009
391942217
370131014
370131514
391741009
354722219
354744709
370131034
391780229
391741009
391941017
354780479
391741009
352942206
352942206
352982296
3919622278
391741009
391941017
3547510298
3504168
354780109
391942217
354744709
354780479
354780109
354780479
Resistors
5210220
5210217
5215045
49163392412
441722704F
49163392406
442520224F
442522294F
442524794F
441723904F
442520104F
DESCRIPTION
1002F50V, ELECT.
4704F50V, ELECT.
2.24F50V, ELECT.
l0uF16V, ELECT.
2.24F50V, ELECT.
470uF16V, ELECT.
2.2uF50V, ELECT.
10uF16V, ELECT.
10nF16V, ELECT.
0.14F50V, ELECT.
104F16V, ELECT.
220uF16V, ELECT.
100PF 100V, APS
1SOPF 100V, APS
10uFI6V, ELECT.
220uF6.3V, ELECT.
474F16V, ELECT.
0.014F100V, APS
2.2uF50V, ELECT.
104F16V, ELECT.
100uF16V, ELECT
4.74FS0V, ELECT.
10uF16V, ELECT.
224F16V, NP.
224F16V. NP.
0.22uF50V, NP.
22004F35V, ELECT.
10uF16V, ELECT.
1002F16V, ELECT
10004F25V, ELECT.
130004F25V, ELECT.
[uFSO0V, ELECT.
220uF16V, ELECT.
474F16V, ELECT.
4.74F50V, ELECT.
1pFS0V, ELECT.
4.7nF50V, ELECT.
NO6HRSOKBD
NO6HRIOKBD
NO8HR 10KBC
3.9K 12, V/1OW
RS2WBJ270.
RM1/101N3.9KO x6
RSI/2WBJ 2.20
RS1I/2WBJ 0.220
RS1/2WBJ 0.470
RS2WBJ 390
RS1/2WBJ 12
CIRCUIT NO. PART NO.
PtOt
P201
P202
P203
P302
P401
P701
P702
P703
P704
P705
P706
P707
P708
P709
P710
P71
P712
P713
Plug, Socket
25055150
25045165
25050269
25050270
25050267
25055147
25045172
25055139
25055139
25055184
25050270
25050273
25050272
25050270
25055135
25055136
25050270
25050268
25050267
Miscellaneous
27141059
27160211
27160029
82143006
NADIS-3861-2
CIRCUIT NO. PART NO.
Q303
Q721
Q305, Q306
Q722
Q723
X702
C301, C302
C303, C304
C721
R313, R314
R321
Ics
22240170
22240084
Transistors
2213090
2213284 or
2213285
Display
212082
Ceramic OSC
3010143
Capacitors
391741009
354742209
391741009
Resistors
5215044
49163104415
iP ateltl!)
DESCRIPTION
NPLG-6P134
NPJ-4PDBL59
NSCT-5P97
NSCT-6P98
NSCT-3P95
NPLG-3P131
HSJ-1003-01-020
NPLG-9P123
NPLG-9P123
NPLG-3P168
NPLG-6P98
NPLG-9P101
NSCT-8P 100
NSCT-6P98
NPLG-5P119
NPLG-6P120
NSCT-6P98
NPLG-4P96
BRACKET
RAD-68, RADIATOR
RAD-07, RADIATOR
3P+6FN(BC), SCREW
DESCRIPTION
BA6800AS
HD614128
DTAI114YS
2SC17408-R or
2S8C1740S8-S
BG-802G
CST-3.00MGW
10uF16V, ELECT.
22uF16V, ELECT.
10uF16V, ELECT.
NO8SHRSKBC
RM 1/101IJ100KQ x 15

TA-R500
NASW-3862-2
CIRCUIT NO. PART NO.
LED
D711, D712 225141
D713. D714 =.225137CG,
225137DG or
225137DY
Switchs
$701-S713 25035548
Holder
27190764A
NAAF-3863-2
Resistors
R203 5104268
R205 $104260
R449 5104271
Switch
§201-S203 25035514
S601 25035514
S604 25030327
Socket
P202A 2050012
NAPS-3864-2
Capacitor
C901 3500065A
Switch
$901 25035558
Terminal
25060092
NAETC-3865-2
DESCRIPTION
SEL2213C
SEL2413CG,
SEL2413DG or
SEL2413DY
NPS-111-S510, PUSH
HOLDER(LED-4)
NI4RGLC1LOOKMN25Z
N1I6RGLSOKA25Z
N14RLCSKB25Z
NPS-122-L476
NPS-122-L476
NRSF-113-25SRB
NCS-5P3E30
0.01uF, AC100V, IS.
NPS-111-L520P
NMT-1833
Headphone jack
P301 25045139
NADIS-3866-2
LED
D921, D922 225142
Holder
27190454A
NADIS-3867-1
LED
D715, D716 = 225137CG,
225137DG or
225137DY
Socket
P704A 2000490
Holder
27190763
NADG-3868-1
Q731 24130003
Switch
$714 25065297
Socket
P710A 2000495
HLJ0540-01-010
SEL2913K
HOLDER(PLED)
SEL2413CG,
SEL2413DG or
SEL2413DY
NSAS-6P446
HOLDER(LED-2)
GP1USOXS
NSS-23119
NSAS-6P-451
-10-

Patel)
PACKING VIEW
D Model
REF.NO. PART NO. DESCRIPTION
] 29052056 Master carton box
2 29091264A Pad (L)
3 29091265A Pad (R)
4 29095608 Protection sheet
29100105 620550 Poly bag
5 282301 Sealing hook
6 260012 Damplon tape
7 Accessary bag ass’y
29341512 Instruction manual
2010098 A Connection cable
29365019 Warranty card (N)
29358002H Service station list (N)
29100006A 350X250 Poly bag
24140169 RC-169K, Remote contro!
3010124 UM-4, Batteris x2
G/W Model
REF.NO. PART NO. DESCRIPTION
] 29052056 Master carton box
2 29091264A Pad (L)
3 29091265A Pad (R)
4 29095608 Protection sheet
29100105 620x550 Poly bag
5 282301 Sealing hook
6 260012 Damplon tape
7 Accessary bag ass’y
29341512 Instruction manual
2010098 Connection cable
25055018 CV plug CV-K-1 (W)
29100006A 350250 Poly bag
24140169 RC-169K, Remote controi
3010124 UM-4, Batteries x2
MECHANICAL POSITION CORD
HEAD BASE
POSITION
BRAKE ON
BRAKE OFF
I : High level
O: Low level
-11-

TAPE MECHANISM PARTS LIST
REF.NO.
fat to
owe SSD
—
oe
13
~~ iw la he NW NM he Me Bh ht he he
wee Uo eA DA fw NS
33
34
36
37
38
39
40
4]
42
43
44
45
48
49
51
53
55
57
59
60)
61
64
66
67
68
70
73
74
PART NO.
24610673
24611295
24611437
24602433
24606282
24611337
82112003
2460643 1
24611294
24602446
24609043
24610515
24602435
24602436
2461 1326B
2460904 I
24611438
24601254
24611444
833126082
24603394
24611336
24606422
24602522
24605667A
24604088
24602523
24609010
24602440
24605743
24602441
24604089 A
24611328
24605669
801337
24611329
24600108
82111406
863125
24605670
24611330
863120
24606289
24606432
2460567 |
24602524
24605672A
24611439
24606284
24606357
24606285
24601230A
24602442A
24602443
24610952
24606368A
24606423
24611440)
24605674
24609011
DISCRIPTION
WASHER
WASHER 2.2*7x0.8
MECHANISM CHASSIS
CAM
CONTACT
WASHER 3x8&x.5
PAN-HEAD SCREW M2+3
P_.C.B. AS
WASHER 2.34.7 x0.5
FLYWHEEL
TAPPING SCREW M2x4.5
WASHER
FLYWHEEL
BELT
THRUST SPRING
PAN HEAD SCREW M72.6x1.5
BRACKET (MOTOR)
CAPSTAN MOTOR AS
CUSHION
TAPPING SCREW M2.6x8
SLIDE LEVER
REFLECTOR
JUMPER LEAD
PINCH ROLLER AS (L)
SPRING (PINCH ROLLER) L
SHAFT (PINCH ROLLER)
PINCH ROLLER AS
SPECIAL SCREW M2x3
GEAR
SPRING
GEAR (HEAD)
SHAFT (HEAD BASE)
HEAD BASE AS
SPRING
SCREW (AZIMUTH)
BRACKET AS (HEAD)
HEAD AS
PAN HEAD SCREW M1.4+6
NUT M2.5
SPRING
TAPE GUIDE
NUT M2
SENSOR
LEAD WIRE (BLACK)
SPRING
PINCH ROLLER AS (R)
SPRING (PINCH ROLLER) R
CUSHION
P.C.B.
LEAD (GND)
LEAF SWITCH
REEL MOTOR AS
IDLER GEAR
BRAKE PULLEY
WASHER 2.65.5 x0.13
LEAF SWITCH
JUMPER LEAD
SUB CHASSIS
SPRING
SPECIAL SCREW M?.6x 1.6
~|]?-
REF.NO.
76
77
79
80
8]
82
83
84
85
86
87
88
89
90
92
93
94
96
97
98
99
100
101
109
110
111
1]2
116
120
122
123
124
125
PART NO.
24605675
24602525
24611334
24611397A
24606288
2460575 |
24605744
24603355
24603356
24611461
24606435
24606436
24606437
24609436
24609037
24602526A
24602527
24611462
833126057
24605679 A
24605678A
24603383
24603384
24603352
24603385
24609035
24603386
24611463
24605746
24601255
24611442
24611443
24609038
24609039
DISCRIPTION
SPRING
REEL AS
REFLECTOR (SP)
HOLDER (CASSETTE)
PHOT REFLECTOR
NJLS161KF1
SPRING (L)
SPRING
LEVER
EJECT LEVER (L)
WASHER 5xX2.6X0.5
LEAD WIRE AS L470
LEAD WIRE AS L420
LEAD WIRE AS L230
PAN HEAD SCREW
PAN HEAD SCREW M2.6x28
IDLER GEAR
GEAR
PLATE AS (GND)
TAP-TIGHT SCREW M2.6+5
SPRING (R)
SPRING
BRAKE LEVER AS (L)
BRAKE LEVER AS (R)
EJECT LEVER
LEVER (B)
TAP-TIGHT SCREW M2x2.6
LEVER AS
BACK PLATE (CASSETTE)
SPRING
ASSIST MOTOR AS
HOLDER (MOTOR)
OIL CUTTER
SCREW M1.6
PAN HEAD SCREW M2x2.5

TA-R500
D
C
TAPE MECHANISM-EXPLODED VIEW
-14-
-13-

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.
Connection of .
. Line input Test tape
instrument
Tape
speed
_
Head
2 | azimuth
Playback
3
level
4 Meter
level
Frequency
5 OSC counter to
Block P401A read
loose coupling
AC voltmeter
to terminals
6} HX-PRO TP-1 and
current
Record
level
Frequency
counter to
Line output
terminal
AC voltmeter
and oscillo-
scope to
Line output
termina!
AC voltmeter
to terminals
TP-3 and
METAL TAPE
MX-C90
IkHz, —20dB
Blank tape
NORMAL ..................... UD-1 C-90 PLAY torque ......
HIGH .... cece cece cece XL-I] C-90 FF. REW torque
METAL .......0......0.....0.. MX C-90 Back tension .......
—~{5-
mo _
AC
voltmeter
AC L-407 (Ch. L)
METAL TAPE] REC voltmeter | L-d08 (Ch. Ry | Maximum R-446_
clockwise
and XL-II C-90 REC/PB ~ ;
12kHz, —12dB OMMener
A
{kHz XL-II C-90
C Attenutor or
AC R403 (Ch. L) Same level
REC/PB | vottmeter | R404 (Ch. R) | at REC/PB
Pate tle)
TEST EQUIPMENT/TOOLS REQUIRED:
Audio oscillator
Digital frequency counter
Oscilloscope
Attenuator
AC voltmeter
Non-magnetic screw driver
Test tapes
VTT-703L 10 KHz, —10dB
MTT-111 3 kHz, —10dB
MTT-150 Dolby level calibration
400Hz, tone 200nWb/m
Output Adjustment Adjust Remarks
Indicator point
Semi-fixed
on the moter
Frequency
3010+ 1O0Hz
Maxtmum and
Head azimuth same phase
screw at channels
AC
voltmeter
R119 (Ch. L)
R120 (Ch. R)
Level R313 (Ch. L)
meter R314 (Ch. R)
Frequency 1-409
counter
Input VR
maximum
Same level
at REC/PB
R445 (Ch. L)
R446 (Ch. R)

TA-R500
ADJUSTMENT POINT
TP4 TPS
CHOU
G
PB LEVEL
R404(R) R403(L) RHO(L) RIZO(R)
REC LEVEL
NCAF - 3860
0 O
L407 L408
fe] [e
R445(L} R446(R)
(2)
BIAS ADJ
NCDIS- 3861
METER LEVEL
R3IZ(L) R3IG(R)
CIC]
-16-

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