Aiwa TPM-105 Schematic

TP-M115

YUB YUB3

TP-M105

YB YBB YHB
YJB YLB

SERVICE MANUAL

MICROCASSETTE RECORDER

BASIC TAPE MECHANISM : M-187

S/M Code No. 09-003-341-9N1

DATA

SPECIFICATIONS

Track system: Micro cassette, 2 tracks 1 channel,

monaural

Usable tapes: (Normal position type)
Frequency response: 250 - 5,000 Hz (2.4 cm/sec) EIAJ
Tape speed: 2.4 cm/sec or 1.2 cm/sec switchable
Microphone: Electret condenser microphone (monaural)
Maximum output: 110 mW (EIAJ/DC)
Output jack: EARPHONE jack (monaural mini-jack) (1)
Other jack: DC 3 V jack
Speaker: Diameter 36 mm, 4 ohms
Recording system: DC bias
Erasing system: Magnet erasure
Power sources: DC 3 V using two size AA (R6) dry cell

batteries
AC house current using the AC adaptor
Aiwa AC-302

Battery life: Battery

Manganese(R6P) batteries Approx. 7 hrs.

Alkaline(LR6) batteries Approx. 24 hrs

Dimensions: 63.8 (W) x 121(H) x 25.7 (D) mm

(2 5/8 x 4 7/6 x 1 1/16 in)

Weight: Approx. 116 g (4.1 oz.) (excluding batteries)

Battry life

EIAJ Recording

• Design and specifications are subject to change without notice.

ACCESSORIES LIST

REF. NO PART NO. KANRI DESCRIPTION

1 8A-HX8-901-010 IB,YU(3L)C<115U,115U3>
1 8A-HX8-902-010 IB,YHJ(ECC)C<105YHB,105YJB>
1 8A-HX8-904-010 IB,YL(3L)C<105YLB>
1 8A-HX8-905-010 IB,Y(EGF)C<105YB>
1 8A-HX8-906-010 IB,Y(SID)C<105YB>

1 8A-HX8-907-010 IB,Y(PHNCZ)C<105YB>

NO.

2

ELECTRICAL MAIN PARTS LIST

REF. NO PART NO. KANRI DESCRIPTION

IC
85-TM5-604-010 IC,LA4165M

MAIN C.B
C1 87-010-193-080 CHIP CAPACITOR,0.033

C2 87-010-186-080 CAP,CHIP 4700P
C3 87-010-185-080 C-CAP,S 3900P-50 B
C4 87-010-082-010 CAPACITOR, 220MF 4V/87-0
C5 87-010-072-010 CAP 2.2-50V

C6 87-010-184-080 CHIP CAPACITOR 3300P(K)
C7 87-010-198-080 CAP, CHIP 0.022
C8 87-010-186-080 CAP,CHIP 4700P
C9 87-010-504-080 CAP, CHIP TANTALUM 0.47-25
C10 87-010-075-010 CAP,10U-16V H5

C11 87-010-490-010 CAP,E 0.1-50 GAS<115U,115U3>
C12 87-A10-952-080 C-CAP,TN 22-4 M A MCM<115U,115U3>
C13 87-010-082-010 CAPACITOR, 220MF 4V/87-0
C14 87-010-082-010 CAPACITOR, 220MF 4V/87-0
C15 87-010-082-010 CAPACITOR, 220MF 4V/87-0

C16 87-010-178-080 CHIP CAP 1000P
C17 87-010-505-080 CA, CHIP TANTALUM 1-16
C18 87-010-504-080 CAP, CHIP TANTALUM 0.47-25
C22 87-010-746-080 CAP, TANTAL 10-4
C23 87-010-494-010 E CAP 1-50

NO.

REF. NO PART NO. KANRI DESCRIPTION

C27 87-010-186-080 CAP,CHIP 4700P
J1 85-TM5-605-010 JACK,HSJ1456
J2 87-A60-849-010 JACK,DC DIA 2.75 BLK
LED2 8Z-HX5-601-010 LED,KM2520A01SRC001 RED
S1 8Z-HX5-602-010 SW,PUSH PS42D07

S2 87-031-816-010 SLIDE SWITCH<115U,115U3>
S3 87-031-816-010 SLIDE SWITCH
S4 87-036-343-010 SW,SL 2-2-2
S5 85-TM5-608-010 SW,LEAF LSA-1114P
S8 87-A90-826-010 SW,LEAF LSA-1114P

SFR1 85-TM5-615-010 SFR,5K V FRB-062
SFR3 87-A91-282-080 C-SFR,2.0K H RVG3S08
VR1 85-TM5-609-010 VR,RTRY 10KAX2 V

NO.

CHIP RESISTOR PART CODE

Chip Resistor Part Coding

88

A

Resistor Code

Chip resistor

Wattage Type Tolerance
1/16W 1005 5% CJ

1/16W
1/10W

1/8W

1608
2125

3216

5%
5%

5%

Symbol

CJ
CJ

CJ

Figure

Value of resistor

3

Form

L

W

Dimensions (mm)

LW t

1.0 0.5 0.35 104

t

1.6 0.8 0.45
2 1.25 0.45

1.6

0.55

3.2

Resistor Code

108
118

128

: A
: A

SCHEMATIC DIAGRAM

J2

VREF

SFR1

TAPE

SPEED

ADJ.

2.4cm

SFR3

TAPE

SPEED

ADJ.

1.2cm

<TP-M115>

VREF

VREF

HEAD

AZIMUTH

ADJ.

4

WIRING

A

B

C

D

1

234567

MIC

MIC1

JI

EARPHONE

SP1

(SPEAKER)

LD2

OPE/BATT

/REC

VR1

VOL/

LEVEL

V-SENSOR

J3

EXT MIC

FH

C15

RED

WHT

GRY

S3

PAUSE

ON OFF

LD2

S3

C5

R5

VR1

BRN

C27

C9

BLK

BRN

J1

C10

R10

R3

RPH

C4

C3

C11

BLK

C13

R9

S5

(POWER)

S8

(FF/REW)

S8

R6

C6

R7

C7

C8

<TP-M115>

S5

C22

C17

C18

R4

C12

<TP-M115>

C1

RED

-D

-C

WHT

E

R15

R8

135791112

C16

-B

R1

IC1

F

C2

BLK

RED

13 15 17 19 21 23 24

R76

R2

S1(SW1)

-A

S1(SW1)

(REC PB)

M1

(MOTOR)

G

S4

D1

OFF ON

S2

R41

R17

R18

R75

C23

R77

SFR3

SFR1

C14

J2

R19

R20

-A

-B

BLK

S4

1.2 2.4

TAPE SPEED

H

S2

< TP-M115 >

V-SENSOR

I

RED

J2

DC3V

A MAIN C.B

J

R6(AA)x2

BATTERY

5

ADJUSTMENT

A MAIN C.B (BOTTOM VIEW)

SFR1
(2.4cm)

VR1
VOL

SFR3 (1.2cm)

J1

EAR PHONE

J4

DC3V

2

RPH

S4

TAPE SPEED

1.2 2.4
3

1

1. Head Azimuth Adjustment

Setting: • Test tape: TTS-930

• Tape speed: 2.4 cm

• Adjustment point: Head Azimuth Adjustment screw

Method: Playback the 5 kHz signal of the test tape (TTS-930)

and adjust screw so that the output becomes maxi­mum.

2. Tape Speed Adjustment (2.4cm)
Setting: • Test tape: TTS-900

• Volume: MAX

• Adjustment point: SFR1

Method: Playback the test tape (TTS-900) and adjust SFR1 so

that the tape speed is become 3000 ± 10Hz.

3. Tape Speed Adjustment (1.2cm)
Setting: • Test tape: TTS-910

• Volume: MAX

• Adjustment point: SFR3

Method: Playback the test tape (TTS-910) and adjust SFR3 so

that the tape speed is become 3000 ± 90Hz.

PRACTICAL SERVICE FIGURE

Tape speed: 3000 Hz ± 90 Hz
Wow & flutter: Less than 0.65% (RMS) (2.4cm)

Less than 0.65% (RMS) (1.2cm)
Take-up torque: 4 ~ 12 g-cm
F.F torque: 30 ~ 150 g-cm
Rew torque: 25 ~ 60 g-cm
Back tension: Less than 1.3 g-cm
S/N ratio: More than 50 dB (DC. PB)

More than 26 dB (DC. R/PB)
Noise level: Less than 1.7 mV (DC.Vol Max. PB)

Less than 18 mV (DC. Vol Max. R/PB)
Erasing ratio: More than 40 dB (1 kHz)
Test tape: TTS-900 (Wow & flutter/Tape speed – 2.4 cm)

TTS-910 (Wow & flutter/Tape speed – 1.2 cm)

TTS-920 (Distortion/Output)

TTS-930 (Azimuth)

TTS-940 (REC/PB)

6

IC BLOCK DIAGRAM

IC, LA4165M

24 23 22 21 20 19 18 17 16 15 14 13

50

2.2K
6K100

300

12K

300K

PRE
AMP

12K

1 2 3 4 5 6 7 8 9 10 11 12

POWER

1K

30K

AMP

VOX CONT

ALC1

VOX

GVN

7

MECHANICAL EXPLODED VIEW 1/1

10

14

20

21

11

12

3

1

2

8

9

13

M-187

19

18

17

5

6

7

4

15

16

22

A

A

A

C

C

C

A

B

MAIN C.B

8

MECHANICAL MAIN PARTS LIST 1/1

REF. NO PART NO. KANRI DESCRIPTION

1 8A-HX8-009-010 WINDOW,CASS M105<EXCEPT 115U,115U3>
1 8A-HX8-003-010 WINDOW,CASS M115 YU<115U,115U3>
2 8A-HX8-008-010 LID,CASS B M115/M105
3 8A-HX8-010-010 LENS,COUNTER M105 Y<EXCEPT 115U,115U3>
3 8A-HX8-004-010 LENS,COUNTER M115 YU<115U,115U3>

4 8Z-HX5-201-010 SPR,CASS
5 8A-HX8-005-010 COVER, MIC M115/M105
6 S6-HX5-210-000 CUSHION MIC
7 84-TM1-639-010 ECM,KUC3523
8 8A-HX8-006-010 CABI,FRONT B M105 Y<EXCEPT 115U,115U3>

8 8A-HX8-001-010 CABI,FRONT B M115 YU<115U,115U3>
9 S1-440-004-210 SPKR,1.4' (36mm) 4 OHM 0.4W
10 8Z-HX7-015-010 BTN,CASS STOP YU
11 8Z-HX7-014-010 BTN,CASS PLAY YU
12 8Z-HX7-013-010 BTN,CASS REC YU

13 8Z-HX5-020-010 LENS,LED
14 85-TM5-203-010 SPR,BAT(+/-)
15 85-TM5-204-010 SPR,BAT(+)
16 85-TM5-205-010 SPR,BAT(-)
17 8Z-HX7-021-010 KNOB,SL 1.2/2.4 YU

18 8A-HX8-007-010 CABI,REAR B M105 Y<EXCEPT 115U,115U3>
18 8A-HX8-002-010 CABI,REAR B M115 YU<115U,115U3>
19 8Z-HX7-020-010 KNOB,SL PAUSE YU
20 8Z-HX7-007-010 LID,BATT YU
21 8Z-HX7-019-010 KNOB,SL FF/REW YU

22 8Z-HX7-035-010 KNOB,SL V-SENSOR YU<115U,115U3>
A 87-261-043-410 V+2-20
B 87-261-553-310 V+2-6 BLK
C 87-261-533-310 SCREW V+1.7-6 BLK

NO.

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

9

MECHANISM EXPLODED VIEW 1/1

B

EARTH LUG

8

7

2

48

6

5

3

4

C

9

14

A

10

11

12

14

15

HERDER
SCREW

13

MECHA
COVER

16

17

18

19

47

40

1

44

39

46

38

45

41

43

42

25

26

32

24

33

31

22

20

21

23

27

28

30

37

10

36

35

34

29

D

MECHANISM MAIN PARTS LIST 1/1

REF. NO PART NO. KANRI DESCRIPTION

1 S1-800-01K-000 CHASSIS ASSY
2 SR-F30-0C1-427 MOTOR ASSY
3 S1-800-13K-000 PINCH ARM ASSY
4 S1-800-100-000 EARTH SP
6 S1-800-080-000 HEAD BASE SP

7 S1-800-060-000 STOP LAVER
8 S1-800-120-000 PINCH ARM SP
9 S1-800-150-000 AZ SPACER
10 ST-MC2-13E-000 R/P HEAD
11 S1-800-160-000 AZIMUTH SP

12 S8-000-700-000 HEAD BASE
13 S1-800-040-000 LOCK PLATE
14 S1-800-290-000 REEL CAP
15 S1-800-730-000 CST HOLDER SP
16 S1-800-050-000 LOCK PLATE SP

17 SE-695-100-000 E HEAD
18 S1-800-090-000 REC LEVER
19 S1-800-030-000 REC LOCK LEVER
20 S1-800-760-200 REC LEVER SP
21 S1-800-450-000 RESET ARM

22 S1-800-720-000 REC SW LEVER
23 S1-800-280-000 REEL (S) GEAR
24 S1-800-410-000 SHUT OFF GEAR
25 S1-800-30K-000 REEL (T) ASSY
26 S1-800-510-000 SHUT OFF SP

NO.

REF. NO PART NO. KANRI DESCRIPTION

27 S1-800-780-000 REW ARM
28 S1-800-270-000 REW CEAR
29 S1-800-390-000 SHUT OFF ARM
30 S1-800-800-000 THRUST SP
31 S1-800-440-000 REC LOCK SP

32 S1-800-430-000 REC LOCK PLATE
33 S1-800-170-000 SW ARM
34 S1-800-220-000 FR LEVER SP
35 S1-800-180-000 SW ARM SP
36 S1-800-260-000 CENTER GEAR

37 SV-400-000-000 MAIN BELT
38 S1-800-35K-000 FW CP ASSY
39 S1-800-740-000 RESET ARM(A)
40 S1-800-210-000 FR LEVER
41 S1-800-250-000 CENTER ARM SP

42 S1-800-240-000 CENTER ARM
45 SM-100-075-000 MOTOR SCREW
46 S3-741-150-000 RUBBER CUSHION
A S3-PB1-4X6-500 SCREW
B S3-PB1-4X2-500 SCREW

C S1-0X2-4X0-5LC L-CUT-W-W
D S1-2X3-0X0-188 L-CUT-W-Y
E S2-1X4-X02-LWR LW(RED)

NO.

11

2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110-8710, JAPAN TEL:[phone]

737004

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