Aiwa TPIC-680 Schematic

TP-IC680

YH1

SERVICE MANUAL

CASSETTE RECORDER

This Service Manual is the "Revision Publishing" and replaces "Simple Manual"
(S/M Code No. 09-99A-337-1T1).

BASIC TAPE MECHANISM : TN-9XR-112

S/M Code No. 09-99A-337-1R1

REVISION

DATA

SPECIFICATIONS

<Cassette recorder section>
Track system 2 tracks 1 channel, monaulal (Recording)

4 tracks 2 channels, stereo (Playback)

Frequency response 250 - 8,000 Hz (EIAJ Recording)
Recording system AC bias
Erasing system Magnet erasure

<Built-in IC section>
Frequency response 400 - 3,500 Hz
Recording time 10 seconds x 2 (IC repeat 60 sec/10 sec switch is set to 10 sec)

60 seconds x 2 (IC repeat 60 sec/10 sec switch is set to 60 sec)

<Common section>
Microphone Electret condenser microphone (monaural)
Maximum output 300 mW (EIAJ 4 ohms/DC)

10 mW+10 mW (EIAJ/16 ohms)

Input jack EXT MIC jack (monaural mini-jack) (1)
Output jack PHONES jack (stereo mini-jack) (1)
Other jack DC 3 V jack
Speaker Diameter 50 mm, 4 ohms (monaural)
Power sources DC 3 V using two R6 (size AA) dry cell batteries

AC house current using the AC adaptor Aiwa AC-D302

Battery life

Battry EIAJ Recording EIAJ 10 mW
Manganese (R6P) Batteries Approx. 5 hrs Approx. 3.5 hrs
Alkaline (LR) batteries Approx. 18.5 hrs Approx. 13.5hrs

Dimensions 113.5 (W) x 90 (H) x 38.4 (D) mm

(41/2 x 35/8 x 19/16 in.)

Weight Approx. 171 g, 5.9 oz (excluding batteries)

ACCESSORIES LIST

• Design and specifications are subject to change without notice.

REF. NO PART NO. KANRI DESCRIPTION

1 8Z-HT5-905-010 IB,YH(ECK)C
2 87-B30-240-010 HEADPHONE,HP-M035
3 87-PD3-050-010 STRAP,HAND

NO.

2

ELECTRICAL MAIN PARTS LIST

REF. NO PART NO. KANRI DESCRIPTION

IC
87-A20-399-010 IC,LA4168M

87-A20-461-040 IC,MM1336DF
87-002-649-080 IC,NJM324M
87-017-506-080 IC,PST600 JMT
87-A20-755-080 C-IC,AK93C45AF

87-017-643-080 IC,MM1206XFF
87-A21-450-040 C-IC,BU4053BCFV
87-A21-409-010 C-IC,ISD4002-120ED
87-A21-408-010 C-IC,MC68HC705P6CDW
87-A21-411-040 C-IC,SB2020P-29332AK

TRANSISTOR
89-508-804-080 CHIP FET 2SK880Y

87-A30-288-040 C-TR,DTC114YKA
89-333-266-080 CHIP TR,2SC3326B
89-327-125-080 CHIP TR,2SC2712GR
89-342-132-080 TR,2SC4213B

89-341-165-080 CHIP TRANSISTOR 2SC4116GR
87-A30-144-080 C-TR,2SC4081R
87-026-210-040 C-TR,DTC144EKA
89-115-864-080 CHIP TRANSISTOR 2SA1586Y
87-026-337-080 C-TR,DTA144TUA

89-332-654-080 CHIP TRANSISTOR, 2SC3265Y

DIODE
87-A40-529-010 DIODE,1GWJ42

87-001-221-080 CHIP DIODE,ISS319
87-001-553-080 C-DIODE 1SS322
87-020-339-080 CHIP DIODE,1SS226
87-020-027-080 CHIP-DIODE 1SS184

87-001-166-080 DIODE,1SS301

MAIN C.B
C101 87-A10-036-080 C-CAP,TN 47U-6.3 B2

C102 87-016-462-080 C-CAP,S 1-16 F
C103 87-010-186-080 CAP,CHIP 4700P
C104 87-010-184-080 CHIP CAPACITOR 3300P(K)
C105 87-A10-019-080 C-CAP,TN 10-6.3 A

C106 87-015-677-010 CAP,E 100-6.3
C107 87-016-296-080 C-CAP,TN 22-6.3
C108 87-016-462-080 C-CAP,S 1-16 F
C109 87-016-462-080 C-CAP,S 1-16 F
C110 87-010-187-080 CAP CHIP S5600P

C111 87-016-462-080 C-CAP,S 1-16 F
C112 87-016-503-080 C-CAP,TN 4.7-6.3
C113 87-016-462-080 C-CAP,S 1-16 F
C114 87-A10-593-080 C-CAP,TN 1-16 A2 MSV
C115 87-016-462-080 C-CAP,S 1-16 F

C116 87-A10-036-080 C-CAP,TN 47U-6.3 B2
C117 87-016-462-080 C-CAP,S 1-16 F
C118 87-A10-264-080 C-CAP,S 0.1-16ZF
C119 87-010-197-080 CAP, CHIP 0.01 DM
C120 87-016-462-080 C-CAP,S 1-16 F

C121 87-015-908-080 CAP,E 220-6.3
C122 87-016-462-080 C-CAP,S 1-16 F
C123 87-A10-264-080 C-CAP,S 0.1-16ZF
C124 87-010-193-080 CHIP CAPACITOR,0.033
C125 87-016-462-080 C-CAP,S 1-16 F

C126 87-016-462-080 C-CAP,S 1-16 F
C127 87-A10-264-080 C-CAP,S 0.1-16ZF
C128 87-A10-036-080 C-CAP,TN 33-6.3
C129 87-A10-264-080 C-CAP,S 0.1-16ZF
C130 87-016-491-080 C-CAP,S 0.22-16 FZ

C201 87-016-462-080 C-CAP,S 1-16 F
C202 87-016-462-080 C-CAP,S 1-16 F

NO.

REF. NO PART NO. KANRI DESCRIPTION

C203 87-010-178-080 CHIP CAP 1000P
C204 87-010-178-080 CHIP CAP 1000P
C205 87-016-296-080 CAP,E 22-6.3
C206 87-010-197-080 CAP, CHIP 0.01 DM
C207 87-016-462-080 C-CAP,S 1-16 F

C208 87-A10-019-080 C-CAP,TN 10-6.3 A
C209 87-010-213-080 CAP, CHIP 0.015-25
C210 87-016-296-080 C-CAP,TN 22-6.3
C211 87-015-908-080 CAP,E 220-6.3
C212 87-A10-264-080 C-CAP,S 0.1-16ZF

C213 87-016-491-080 C-CAP,S 0.22-16 FZ
C214 87-016-462-080 C-CAP,S 1-16 F
C215 87-A10-019-080 C-CAP,TN 10-6.3 A
C216 87-015-213-080 CAP, CHIP 0.015-25
C217 87-016-296-080 C-CAP,TN 22-6.3

C218 87-A10-264-080 C-CAP,S 0.1-16ZF
C219 87-016-491-080 C-CAP,S 0.22-16 FZ
C220 87-010-178-080 CHIP CAP 1000P
C221 87-010-794-080 CHIP CAPACITOR TN 0.1-20(A2)
C222 87-010-182-080 C-CAP,S 2200P-50 B

C223 87-010-182-080 C-CAP,S 2200P-50 B
C224 87-016-370-010 CAP,E 470-6.3 M RS
C225 87-016-462-080 C-CAP,S 1-16 F
C226 87-012-358-080 C-CAP,S 0.47
C227 87-012-358-080 C-CAP,S 0.47

C301 87-010-197-080 CAP, CHIP 0.01 DM
C303 87-A10-264-080 C-CAP,S 0.1-16ZF
C304 87-A10-593-080 C-CAP,TN 1-16 A2 MSV
C305 87-016-462-080 C-CAP,S 1-16 F
C307 87-A10-036-080 C-CAP,TN 47U-6.3 B2

C308 87-010-197-080 CAP, CHIP 0.01 DM
C309 87-010-197-080 CAP, CHIP 0.01 DM
C310 87-A10-034-080 C-CAP,TN 33-6.3
C311 87-016-491-080 C-CAP,S 0.22-16 FZ
C312 87-A10-264-080 C-CAP,S 0.1-16ZF

C313 87-012-358-080 C-CAP,S 0.47
C315 87-010-197-080 CAP, CHIP 0.01 DM
C316 87-010-316-080 C-CAP,S 33P-50 CH
C317 87-010-316-080 C-CAP,S 33P-50 CH
C319 87-010-197-080 CAP, CHIP 0.01 DM

C320 87-010-197-080 CAP, CHIP 0.01 DM
C321 87-A10-036-080 C-CAP,TN 47U-6.3 B2
C322 87-010-182-080 C-CAP,S 2200P-50 B
C501 87-010-179-080 CAP,CHIP S B1200P
C502 87-010-197-080 CAP, CHIP 0.01 DM

C503 87-010-184-080 CHIP CAPACITOR 3300P(K)
C504 87-010-197-080 CAP, CHIP 0.01 DM
C505 87-A10-036-080 C-CAP,TN 47U-6.3 B2
J101 84-TM1-630-010 JACK,3.5 HSJ1493-05
J102 87-A61-032-010 JACK,3.5 BLK ST W/SW HSJ1494

J201 87-A60-849-010 JACK,DC DIA 2.75 BLK
L301 87-003-188-080 COIL 22UH
L302 87-003-188-080 COIL 22UH
L303 87-003-188-080 COIL 22UH
L501 87-007-189-010 COIL OSC

S301 87-036-273-080 CHIP TACT SWITCH SKQGADE010
SW101 87-A90-520-010 SW,SL 2-4-2SHORTING
SW102 87-031-816-010 SLIDE SWITCH
SW103 87-A90-520-010 SW,SL 2-4-2SHORTING
SW201 87-A90-520-080 REC SWITCH

SW301 87-031-816-010 SLIDE SWITCH
SW302 87-031-816-010 SLIDE SWITCH
TH101 87-A90-855-080 C-THMS,SC20-3K102K
TH102 87-A90-307-080 C-THMS,K39G220
VR101 87-A90-308-010 VR,RTRY 3KB XV81

VR102 87-A90-527-010 SFR,5K H VZ066L3
VR201 87-A90-314-010 VR,RTRY 10K H
X301 87-A70-147-080 C-VIB,CER 2.0MHZ PBRC-A

KEY C.B

NO.

REF. NO PART NO. KANRI DESCRIPTION

C401 87-016-462-080 C-CAP,S 1-16 F
C402 87-010-197-080 CAP, CHIP 0.01 DM
C403 87-010-197-080 CAP, CHIP 0.01 DM
LED1 87-A90-276-080 C-LED,SML-210MT GRN
LED2 87-A90-278-080 C-LED,SML-210VT RED

LED3 87-017-827-070 C-LED,SEC 1201C RED
LED4 87-017-828-070 C-LED,SEL 1401C GRN
LED5 87-017-829-070 C-LED,SEC 1901C ORN
LED6 87-017-827-070 C-LED,SEC 1201C RED
S401 87-A90-665-180 TACT SWITCH

S402 87-A90-665-180 TACT SWITCH
S403 87-A90-665-180 TACT SWITCH
S404 87-A90-665-180 TACT SWITCH

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

TRANSISTOR ILLUSTRATION

1608
2125

3216

C

B

E

2SA1586
2SC2712
2SC3265
2SC3326
2SC4081
2SC4116
2SC4213
DTA144TUA
DTC114YKA
DTC144EKA

5%
5%

5%

Symbol

CJ
CJ

CJ

Figure

Value of resistor

Form

L

Dimensions (mm)

W

S

D

2SK880

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

G

Resistor Code

108
118

128

: A
: A

43

SCHEMATIC DIAGRAM

65

WIRING-1 (KEY C.B SECTION)

G

F

KEY C. B

E

D

LED4 F
LED5 M
LED6 E

C

B

A

A

LED3

TAPE REC

OPE/BATT

KEY C. B

CN401

TO A MAIN C. B

CN301

1357910

CONTINUE

S401,LED2

PRACTICE

S403

8

5

14

TEACHER

S402,LED1

STUDENT

S404

NOTE
Qxxx =

Dxxx =

LEDx =

Cxxx =
Rxxx =

7654321
7654321

C

E

B

B

C

D

E

F

G

7