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RM-67
EZ(S)
SERVICE MANUAL
RADIO CASSETTE RECORDER · BASIC TAPE MECHANISM : TN-21ZVC-1145
This Service Manual is the "Revision Publishing" and replaces "Simple Manual" (S/M Code No.09-997-333-6T2).
RE
S/M Code No. 09-997-333-6R2
DA TA
VI
SIO
N
SPECIFICATIONS
Tuner section Frequency range: FM: 87.5 - 108.0 MHz MW: 530 - 1,605 kHz LW: 150 - 285 kHz FM: Rod antenna MW, LW :Ferrite bar antenna General Speaker Output Power output 90 mm cone type (1) Earphone jack (monaural mini-jack) 1.7 W (DIN MUSIC POWER) 1 W (EIAJ 4 ohms, T.H.D. 10%) 0.8 W (DIN 1% Rated Power) DC 6 V using four size C (R14) batteries AC 230 V,50 Hz 6W 279 (W) x 128 (H) x 101 (D) mm 1.2 kg (excluding batteries)
Antenna:
Power requirements Deck section Track format Frequency range Recording system Erasing system Heads 2 tracks, 1 channel Normal tape: 50 - 10,000 Hz (EIAJ) AC bias Magnet erase Recording playback head (1) Erasure head (1) Power consumption Dimensions Weight
· Design and specifications are subject to change without notice.
ACCESSORIES LIST
REF. NO
PART NO.
KANRI NO.
DESCRIPTION
1 8Z-CM2-908-010 2 87-A80-081-010
IB,EZ(9L)A AC CORD SET ASSY,EZ BLK
2
TRANSISTOR ILLUSTRATION ELECTRICAL MAIN PARTS LIST
REF. NO IC
PART NO.
KANRI NO.
DESCRIPTION
REF. NO C239 C240 C301 C302 C303 C304 C305 C306 C307 C308 C309 C311 CF101 CF102 CF103 CF104 D104 J1 L101 L102 L103 L104 L105 L107 L201 L301 !PR301 PVC2 R306 SW101 SW201 SW202 SW203 T101 T103 T104 T201 TC101 TC102 VR201 VR202
88-CM2-608-010 8Z-CM2-646-010 TRANSISTOR 87-CD7-603-080 89-319-233-010 DIODE 87-A40-246-080 87-A40-357-080 86-CM3-601-080 87-017-088-080 8Z-CM1-657-010 8Z-CM1-656-010 MAIN C.B C100 C104 C106 C110 C113 C114 C115 C117 C118 C121 C122 C124 C126 C128 C131 C132 C133 C134 C135 C202 C203 C204 C206 C207 C209 C211 C212 C213 C216 C217 C218 C219 C220 C221 C222 C223 C224 C225 C226 C227 C228 C229 C230 C232 C234 C235 C236 C237 C238 87-A10-176-010 87-A10-577-010 87-A10-162-010 87-A10-496-010 87-A10-176-010 87-010-404-080 87-A10-166-010 87-A10-171-010 87-A11-848-080 87-010-404-080 87-A10-182-010 87-010-400-080 87-010-402-080 87-010-405-080 87-A10-413-010 87-A10-182-010 87-010-221-080 87-A10-411-010 87-A10-176-010 87-010-404-080 8Z-CM1-620-010 8Z-CM1-620-010 87-010-544-080 87-010-380-080 87-010-221-080 87-010-221-080 87-010-400-080 87-010-380-080 87-A10-170-010 87-010-405-080 8Z-CM1-620-010 87-A10-182-010 87-010-380-080 87-A10-182-010 87-A10-182-010 87-010-401-080 8Z-CM1-620-010 87-010-405-080 87-010-263-080 87-010-545-010 87-A10-840-010 8Z-CM1-620-010 87-010-402-080 87-010-221-080 87-010-380-080 87-A10-211-010 87-A10-182-010 87-010-544-080 87-010-248-080
IC,TA7628 HP IC,TA2132P
KANRI DESCRIPTION NO. 87-A10-411-010 CAP,CER 0.047-16 K SR 87-A10-176-010 CAP,CER 1000P-50 M D 87-A10-577-010 CAP,CER 0.022-50 Z YF 87-A10-577-010 CAP,CER 0.022-50 Z YF 87-010-236-080 CAP,E 1000-16 SME 87-A10-411-010 87-010-221-080 87-010-221-080 87-A10-411-010 87-010-248-080 87-A10-211-010 87-010-248-080 8Z-CM1-642-010 82-785-747-080 87-008-554-010 82-785-747-080 87-CD8-614-010 8Z-CM1-608-010 8Z-CM2-669-010 8Z-CM2-661-010 8Z-CM2-660-010 87-003-143-080 8Z-CM2-668-010 8Z-CM2-642-010 87-003-149-080 87-003-149-080 87-A91-703-080 8Z-CM1-636-010 87-A00-436-050 8Z-CM2-649-010 8Z-CM2-647-010 8Z-CM2-650-010 8Z-CM2-648-010 8Z-CM2-667-010 8Z-CM2-638-010 8Z-CM2-637-010 8Z-CM1-605-010 87-A91-657-010 87-A91-657-010 8Z-CM1-603-010 8Z-CM1-604-010 CAP,CER 0.047-16 K SR CAP, ELECT 470-10V CAP, ELECT 470-10V CAP,CER 0.047-16 K SR CAP, ELECT 220-10V CAP,CER 0.1-50 M CAP, ELECT 220-10V FLTR,SFU465B FILTER, SFE10.7MS2-A FLTR,CF CDA10.7MG60-A FILTER, SFE10.7MS2-A VARI-CAP,1S2638 JACK, EP ZCM-1 COIL,FM RF4T4.5MM COIL,FM RF4T5MM COIL,FM OSC3T5.5MM COIL,4.7UH COIL,BAR ANTLW COIL,BAR ANTMW COIL,47UH COIL,47UH FUSE PROTECTOR,800MA/60V TUN-CAP, EZ RES,100-1/2W J RP SW,SL 2-6-3 BAND SW,SL 2-4-2 FUNC SW,PUSH 2-6-2 REC SW,SL 2-2-2 BEAT COIL,LWOSC COIL,MW OSC COIL,AM IFT2 COIL, BIAS TRIMMMER 20P TRIMMMER 20P VR,RTRY 50K A MAIN VR,RTRY 10K B TONE
PART NO.
ECB 2SC1923 SS8050
TR,SS8050 TR,2SC1923(O)
DIODE,IN4148 T-72 ZENER,3.9V DIODE,CDG-24 ZENER,4.7V DIODE, IN60P DIODE, 1N4001B
IC BLOCK DIAGRAM
IC, TA2132P
CAP,CER CAP,CER CAP CER CAP,CER CAP,CER
1000P-50 M D 0.022-50 Z YF 68P-50 KSL 18P-50 J CH 1000P-50 M D
CAP, ELECT 4.7-50V CAP,CER 150P-50 K B CAP,CER 390P-50 K B CAP,CER 24P-50V CAP, ELECT 4.7-50V CAP,CER 0.01-50 Z F CAP, ELECT 0.47-50V CAP, ELECT 2.2-50V CAP, ELECT 10-50V CAP,CER 2200P-4K M E KX CAP,CER 0.01-50 Z F CAP, ELECT 470-10V CAP,CER 0.047-16 K SR CAP,CER 1000P-50 M D CAP, ELECT 4.7-50V CAP,CER 500P-50 CAP,CER 500P-50 CAP, ELECT 0.1-50V CAP, ELECT 47-16V CAP, ELECT 470-10V CAP, ELECT 470-10V CAP, ELECT 0.47-50V CAP, ELECT 47-16V CAP,CER 330P-50 K B CAP, ELECT 10-50V CAP,CER 500P-50 CAP,CER 0.01-50 Z F CAP, ELECT 47-16V CAP,CER 0.01-50 Z F CAP,CER 0.01-50 Z F CAP, ELECT 1-50V CAP,CER 500P-50 CAP, ELECT 10-50V CAP, ELECT 100-10V CAP, ELECT 0.22-50V CAP,CER 220P-1K K R LONG CAP,CER 500P-50 CAP, ELECT 2.2-50V CAP, ELECT 470-10V CAP, ELECT 47-16V CAP,CER 0.1-50 M CAP,CER 0.01-50 Z F CAP, ELECT 0.1-50V CAP, ELECT 220-10V
LED C.B D303 87-A91-052-080 LED,SEL6227S RED
IC, TA7628HP
3
4
SCHEMATIC DIAGRAM
L102, TC2 FM TRACKING ADJ.
L103, TC1 FM FREQ. RANGE ADJ.
T103, TC3 MW FREQ. RANGE ADJ.
T101, TC101 LW FREQ. RANGE ADJ.
TC2
VC2 4T5mm 18P(NPO)
VC1 TC1 4.7/50
R112 4.7K TC3 20P
VC3 47
MW.R
L107, TC4 MW TRACKING ADJ.
G2
390P
C107 15P(NPO)
TC4
PVC2 TC1~TC4 VC1~VC4 VC1~VC4 TUNING
LW.R
MW BAR ANT.
0.47/50 15 1500P(M)
MW.W LW.W VC4 C106 68P (NPO) 20P G1
10/50 LW BAR ANT.
(MW/LW) FM (3.8) 2 (3.6) 3.1 (2.8) 3.1 (3.6) 3.1 (2.6) 1.7
TP1
(0.4) 1 (4.2) 3.7
SW101A~F BAND FM MW LW
2.2/50
L105, TC102 LW TRACKING ADJ.
FM ROD ANT.
(0) 0.8 0
IC101
4.5 (0.1) 0 4.5
P
FM F/E +AM/FM IF
4.5
(3.8) 4
0
Q101 FM IF AMP 0.047
3 0.1
SW201A~D FUNCTION RADIO TAPE/ POWER
470/10
STANDBY
220/10
M1
C121 4.7/50 1K
L-1
SW1 (POWER)
T104 MW/LW IF ADJ.
(0.9) 0.8
L-2
0.022
MS2-A
MS2-A
PR301 800
1N4001B AC2
47/16
2K 3.3K
D303 SEL6227S RED OPE/BATT.
C237 0.1/50
SW202E SW202D
0.022 GND
PT1
AC1 AC~ AC SOCKET
AC230V, 50Hz
MIC1 MIC
4.7K
0.01
5.6K 47/16 240
470/10
0.022 0.047 1000/16
5.6K
AC1 560 0.47/50 1N4001B
SW202A~F (REC PLAY)
SW202B
4.7/50
0.1/50 C211 470/10 C306 470/10 0.047
SW202A H.R SW202C
(REC)
470/10 500P 500P
1.4 <9.6> (8.7) <9.6> (8.8) <9.2> (8.4)
47/16
H.GND 47/16 H.W
<0> (0.2)
1.3
1.3
<8.6> (7.8)
SIZE C (R14) x 4
IC201
PRE-AMP
10/50
<0> (4)
<0> (0.8)
0
0.6
<5> (4.5)
100/10
470/10
: AUDIO PB/FM SIGNAL
5.6K 1/50 0.22/50 500P 6.8K
: AUDIO REC/AM SIGNAL
<9.7> (2.2)
<9.6> (5)
500P TP2
<9.4> (1.5)
SS8050 REC BIAS OSC
1N60P
2.2/50 10/50 SP1 (SPEAKER)
500P
3.9K
T201 BIAS OSC ADJ.
SW203 (BEAT) SW202F 0.047 220/10 220/10
5
6
WIRING
1 2 3 4 5 6 7 8 9 10 11 12 13 14
A
BATTERY C(R14) BATTERY C(R14) BATTERY C(R14) BATTERY C(R14)
FM ROD ANT.
YEL
B
L107 (MW BAR ANT.) L105 (LW BAR ANT.)
B LED C. B
D303 OPE/ BATT
D303
PT1
MW.W
LW.R
LW.B
RED
BLK
BLK
C
LW. W
MW.B
MW.G
MW.R
LW.G
AC1 AC~ AC110~120V/ 220~240V. 50/60Hz
ORG
WHT2 BLU WHT1
WHT1
D
A MAIN C. B
(PARTS SIDE VIEW)
LW.R MW.R
FM
SW101 BAND MW
LW REC
C126
R111 C131 R231
C237 R233
R110
VR201
R211
R107
VR202 C231
ORG
VR201 VOLUME
SW202 PLAY
VR202 TONE
WHT2
W: B: G: R:
WHT BLK GRN RED
SW201 FUNCTION TAPE/ RADIO POWER STANDBY
J1 EARPHONE
SW201
C302
C301
J1
R223
SW101
PVC2
TC2 TC4
-D
MW.W
-E
LW.G G1 LW.W
-A
C117
R112 C115
R117
R114
C234 C202
R202
L102
VC4
R302
C107
VC2
R201
R232
-C
SW202
C106
R210 R205 R206
R116
C116 T103 C114 C124 C201 TC101 C217
C118
C104 VC3 VC1
TC102
-F -D
C207 C203 C204
C205 R203 R208
F
C109
G2 MW.B
-B
C212 C206 C210 R209
C209 C311 C211
C304
R224
T101
R304 R207 RED R204
C305
BLK R303 L301
D302
D103
R229
R301
WHT
-C
-B
PR301
C230
GRY
C236 R230
D301
E
VC1~VC4 TUNING
-C
-F
-B
R212
-D
-A
C233
BLK BLU
C303
RED
TC1
TC3
16
C208 C221 IC201
13
11
9
C307
C306
D104 R108
D101
C110
D102 R101 C101
C113 R103 C112
R104
C127 R105
RED
-A -E
D201
L103
1
R216
D202
3
C222
WHT 5
R221
8
C229
C213
IC101
CF104
R124
C102
R109 C129 L104
R122
T104
C121 CF101 R123 C123 C125
C135 R228 R225 C219
TP2
R306 C215
R215
C220
R217
1
3
5
8
C122
C238
C308
C223
C224
C128
C227
C103
D105
C100
R227
TP1
C228
R222 C232
R220
R106 C133
C134
R218 C225
R214
R226
L101
C218
R213
R219
C226
C216
H
C139
CF102
C214
B C E
C140 Q101
R125
C240
Q201
T201
WHT
NOTE CXXX
,
SW203 (BEAT)
C132
D203
C309 L201 R305
C235
SW203
11
9
C239
16
13
WHT WHT
G
CF103
WHT BRN
BLK YEL
BLU
CXXX
, ,
WHT GRY
JPXXX RXXX
,
WHT
GND RED WHT
,
GND
J
LXXX
M1 (MOTOR)
BLU
YEL
I
MIC1 MIC
R/P HEAD
BLK
RED
SW1 (POWER)
SP1 (SPEAKER)
7
8
BRN
BLK
ADJUSTMENT
MECHANICAL EXPLODED VIEW 1/1
MW COIL
LW COIL
5
L107 L105
A MAIN C.B
7
PLATE, SPKR 3
2
TC2 TC1
T103 TC102
T101
E
VC L102
TC3 TC4
6
TC101 TP1 (DET OUT)
10
1
L103
LED C.B
PLATE, SPKR
E
10
TP2 (BIAS FREQ.) T104 T201 C215
4
19 11 C
9
A
IC101
E
3
8
7
6
A
8
A
20
5
21
A
E
PRACTICAL SERVICE FIGURE
A
23
17
A
1. FM Freq. Range Adjustment L103 .......................................................................... 87.4 MHz TC1 ......................................................................... 108.3 MHz 2. FM Tracking Adjustment L102 ............................................................................. 88 MHz TC2 ............................................................................ 108 MHz 3. AM IF Adjustment T104 ............................................................................. 465 kHz 4. MW Freq. Range Adjustment T103 ............................................................................. 515 kHz TC3 ............................................................................ 1635 kHz 5. MW Tracking Adjustment L107 ............................................................................. 600 kHz TC4 ............................................................................ 1400 kHz 6. LW Freq. Range Adjustment T101 ............................................................................. 145 kHz TC101 .......................................................................... 295 kHz 7. LW Tracking Adjustment L105 ............................................................................. 150 kHz TC102 .......................................................................... 280 kHz 8. Bias Freq. Adjustment T201 ............................................................................... 60 kHz
Sensitivity: FM (IHF, THD 3%) MW (S/N 10 dB)
CUSH, MIC
A
31
D
25
37
Tape Speed: Take up Torque FF/Rew Torque FF/Rew Time Wow & Flutter:
34
E
Distortion: S/N Ratio: Noise Level:
Less than 3.0% (PB) More than 35 dB Less than 30 mV (VR Max.) Less than 2 mV (VR Min.) 3000 Hz + 90% 60% 30 - 60 g-cm 45 - 140 g-cm 100 - 170 sec Less than 0.4% (RMS)
31
35
C
E
33
32
D
36
9
38
28
D
27
PLATE, TRANS
30
D
10
26
PLATE, TRANS
30
MAIN C.B
E
Less than 22 dB (at 88, 98, 108 MHz) Less than 52 dB (at 600, 1,000, 1,400 kHz) LW (S/N 10 dB) Less than 65 dB (at 150, 200, 280 kHz) Intermediate Frequency: FM 10.7 MHz AM 465 kHz
29
22
16
15
13 14
12
A
E
4
TN-21ZVC-1145
24
B
H
18
2
1
MECHANICAL MAIN PARTS LIST
REF. NO 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
PART NO.
KANRI NO.
DESCRIPTION
REF. NO 26 27 28 29 30 31 32 33 34 35 36 37 38 A B
PART NO.
KANRI NO.
DESCRIPTION
8Z-CM2-024-010 8Z-CM2-009-010 8Z-CM2-027-010 8Z-CM2-063-010 86-CM2-212-010 8Z-CM2-208-010 8Z-CM2-209-010 8Z-CM2-006-010 8Z-CM2-205-010 8Z-CM2-607-010 8Z-CM2-007-010 8Z-CM2-016-010 8Z-CM2-015-010 8Z-CM2-014-010 8Z-CM2-013-010 8Z-CM2-012-010 8Z-CM2-011-010 8Z-CM2-207-010 8Z-CM2-201-010 8Z-CM2-204-010 8Z-CM2-640-010 8Z-CM2-202-010 8Z-CM2-203-010 87-A90-086-010 87-A60-178-010
COVER, CASS EX HLDR,CASS WINDOW,TUNING EZ CABI,FR EX ASSY (S) SPR-T,CASS GEAR,CASS HLDR,GEAR CASS POINTER, COVER, POINTER SPKR,F 4 4OHM KNOB,RTRY TUNING KEY,CASS REC KEY,CASS PLAY KEY,CASS REW KEY,CASS FF KEY,CASS STOP KEY,CASS PAUSE PLATE,REC GEAR,TUNING HLDR,BAND BAR-ANT,AM HLDR,BAR-ANT BLIND,CASS COVER,AC-SOCKET JACK,AC E W/SW
8Z-CM2-605-010 8Z-CM2-023-010 8Z-CM2-032-010 88-CS8-625-010 8Z-CM2-003-010 8Z-CM2-005-010 8Z-CM2-608-010 85-CM1-211-010 8Z-CM2-206-010 85-CM1-212-010 8Z-CM2-038-010 8Z-CM2-037-010 8Z-CM2-036-010 87-741-095-410 87-751-074-410
PT,E ZCM-2 CABI,REAR EZ KNOB,SL BEAT MIC,ECM KNOB,SL FUNCTION KNOB,RTRY VOLUME ANT,ROD FM ZCM-2 SPR,BATT(-) SPR,BATT (+) SPR,BATT(+/-) LID,BATT EX COVER, HANDLE EX HANDL,EX UT2+3-8 GLD VT2+2.6-8 W/0 CUT V+2.6-6 UT2+3-16(W/O) SLOT SCEW,ST3-10
C 87-261-073-410 D 87-741-100-410 E 87-651-096-410
COLOR NAME TABLE
Basic color symbol Color Basic color symbol Color Basic color symbol Color B Black C Cream D Orange G Green H Gray L Blue LT Transparent Blue N Gold P Pink R Red S Silver ST Titan Silver T Brown V Violet W White WT Transparent White Y Yellow YT Transparent Yellow LM Metallic Blue LL Light Blue GT Transparent Green LD Dark Blue DT Transparent Orange
11
MECHANISM EXPLODED VIEW 1/1
F G E.HEAD 1 E 2
LUG PLATE R.P. HEAD
3 47 8 a 9 10 J L
4 5
M 6 7
48
11
12 H 49 20 21 22 18 23 19 31 30 b 24 37 25 26 27 28 29 39 D 40 K 42 43 MOTOR BRACKET N 41 I D B B 45 38 C C a 36 A b 14
15 16 17
13 34 32 33 35
44
N 46
50
12
TAPE MECHANISM PARTS LIST 1/1
REF. NO 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35
KANRI NO. S1-921-030-040 S1-821-030-070 S1-921-030-030 S1-921-260-050 S1-921-265-020 S1-921-140-370 S1-921-140-340 S1-921-030-010 S1-921-143-010 S1-921-140-180 S1-921-260-4A0 S1-921-043-010 S1-921-130-010 S1-921-140-130 S1-921-140-100 S1-921-140-120 S1-921-140-110 S1-921-140-150 S1-821-011-590 S1-921-140-140 S1-921-140-200 S1-921-140-090 S1-921-140-080 S1-921-140-030 S1-921-140-190 S1-921-140-040 S1-921-140-050 S1-921-140-060 S1-921-140-070 S1-829-100-100 S1-921-053-020 S1-821-100-690 S1-821-100-700 S1-921-050-060 S1-921-053-010
PART NO.
DESCRIPTION HEAD BASE AZIMUTH SPRING PANEL P SPRING GEAR PLATE SPRING GEAR PLATE ASSY P ARM COLLER P ARM HEAD PANEL BASE ASSY M CONTROL SPRING SENSING LEVER PINCH ROLLER ARM ASY EJECT SLIDE LEVER P CONTROL SPRING PAUSE LEVER PAUSE LEVER SPRING PAUSE STOPPER BUTTON LEVER SPRING(B) E KICK LEVER BUTTON LEVER SPRING(A) PR STOPPER SWITCH ACTUATOR PUSH BUTTON ACTUATOR REC BUTTON LEVER PLAY BUTTON LEVER REW BUTTON LEVER FF,BUTTON REVER STOP BUTTON LEVER PAUSE BUTTON LEVER BACK TENSION SPRING SUPPLY REEL ASSY RECORD SAFETY LEVER FF GEAR SENSOR TAKE UP REEL ASSY
REF. NO 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 A B C D E F G H I J K L M N
KANRI NO. S1-821-100-980 S1-921-015-010 S1-921-140-210 S1-921-073-020 S1-921-070-030 S1-921-260-020 S1-921-140-160 S1-921-093-030 S1-921-090-040 S1-820-130-060 S1-921-120-010 S1-921-030-050 S1-921-030-100 S6-401-011-490 S1-010-260-800 S9-179-000-000 S1-821-120-020 S9-679-000-000 S9-999-180-090 S9-004-000-000 S9-115-000-000 S9-922-000-000 S9-P05-200-610 S9-422-000-000 S9-999-030-130 S9-786-000-000 S9-999-000-030 S9-999-200-410 S9-180-000-000
PART NO.
DESCRIPTION PACK SPRING CHASSIS ASSY REC BUTTON LEVER SPRING RF CLUTCH ASSY RF BELT CAM GEAR E ACTUATOR SPRING FLYWHEEL ASSY MAIN BELT MOTOR RUBBER MOTOR PULLEY MG ARM MG ARM SPRING LEAF SW MSW-1541T MOTOR EG530AD-6B C TAP SCREW M2-3 MOTOR COLLER SCREW P TAP SCREW M2-5 TAPPING SCREW(CAMERA)M2-4.5 SCREW M2-6 + BIND SCREW M2-3 AZIMUTH SCREW M2-8 SCREW,TAP S M 2-6 P WASHER CUT 1.2-3.8-0.3 P WASHER CUT 1.45-3.8-0.5 P P P C WASHER 2-3.5-0.3 WASHER2.1-4-0.13 TAP SCREW M2-3 TAP SCREW M2-4
13
211, IKENOHATA 1CHOME, TAITO-KU, TOKYO 110, JAPAN TEL:03 (3827) 3111
931196 Printed in Singapore