Aiwa HS-TX426 Service Manual

HS-TX426

YZ(S)

SERVICE MANUAL

STEREO RADIO CASSETTE PLAYER

• This Service Manual is the “Revision Publishing” and replaces “Simple Manual”
HS-TX426 <YZ(S)>, (S/M Code No. 09-022-457-4T1).

BASIC TAPE MECHANISM : 8ZM-3 YP8NF

S/M Code No. 09-024-457-4R1

REVISION

DATA

SPECIFICATIONS

Frequency range:
Reception area EU AM 531 - 1,602 kHz (9 kHz steps)

Reception area US AM 530 - 1,710 kHz (10 kHz steps)

Maximum output: 4 mW + 4 mW (EIAJ 16 ohms)
Load impedance: 16 - 80 ohms
Power source: DC 3 V using two R6 (size AA) dry cell batteries
Battery life (EIAJ, 0.2 mW output, playback):

Maximum outside dimensions (W x H x D):

Weight: Approx. 138 g (excluding batteries)

• Design and specifications are subject to change without notice.

FM1, FM2 87.5 - 108 MHz (50 kHz steps)

FM1, FM2 87.5 - 108.1 MHz (200 kHz steps)

Approx. 7 hours using R6P (size AA) manganese batteries
Approx. 24 hours using LR6 (size AA) alkaline batteries

83 x 111.3 x 29.9 mm (excluding projecting parts and controls)

– 2 –

ELECTRICAL PARTS LIST

! = ! SAFETY PARTS
C = Components marked

UNIT-NAME ! C REF-NO P ARTS-NO PARTS-NAME SUFFIX&MODEL

HS-TX426
YZ1SC
MAIN O 87-A91-728-110 FLTR,KIT KMFC5184-A a
MAIN O BPF0201 87-A91-682-010 FLTR,GFWB7-C1 a
MAIN O C 0101 87-012-276-080 C-CAP,U 1500P-50 K B GRM a
MAIN O C 0102 87-012-276-080 C-CAP,U 1500P-50 K B GRM a
MAIN O C 0103 87-010-499-040 CAP,E 22-6.3 M 5L SRE a
MAIN O C 0104 87-010-499-040 CAP,E 22-6.3 M 5L SRE a
MAIN O C 0105 87-012-273-080 C-CAP,U 820P-50 K B GRM a
MAIN O C 0106 87-012-273-080 C-CAP,U 820P-50 K B GRM a
MAIN O C 0107 87-A11-056-080 C-CAP,U 1-10 Z F a
MAIN O C 0108 87-A11-056-080 C-CAP,U 1-10 Z F a

MAIN O C 0109 87-A11-056-080 C-CAP,U 1-10 Z F a
MAIN O C 0110 87-A11-056-080 C-CAP,U 1-10 Z F a
MAIN O C 0111 87-012-274-080 C-CAP,U 1000P-50 K B GRM a
MAIN O C 0112 87-012-274-080 C-CAP,U 1000P-50 K B GRM a
MAIN O C 0113 87-A11-056-080 C-CAP,U 1-10 Z F a
MAIN O C 0114 87-A11-056-080 C-CAP,U 1-10 Z F a
MAIN O C 0121 87-A11-056-080 C-CAP,U 1-10 Z F a
MAIN O C 0122 87-012-271-080 C-CAP,U 560P-50 K B a
MAIN O C 0123 87-010-499-040 CAP,E 22-6.3 M 5L SRE a
MAIN O C 0124 87-010-831-080 C-CAP,U 0.1-16 Z F a

HS-TX426
YZ1SC
MAIN O C 0125 87-010-503-040 CAP,E 220-4 M 5L SRE a
MAIN O C 0126 87-A11-056-080 C-CAP,U 1-10 Z F a
MAIN O C 0127 87-A11-056-080 C-CAP,U 1-10 Z F a
MAIN O C 0128 87-010-499-040 CAP,E 22-6.3 M 5L SRE a
MAIN O C 0129 87-010-501-040 CAP,E 47-4 M 5L SRE a
MAIN O C 0130 87-A11-056-080 C-CAP,U 1-10 Z F a
MAIN O C 0201 87-012-199-080 C-CAP,U 220P-50 J CH GRM a
MAIN O C 0202 87-012-199-080 C-CAP,U 220P-50 J CH GRM a
MAIN O C 0203 87-012-274-080 C-CAP,U 1000P-50 K B GRM a
MAIN O C 0204 87-A11-056-080 C-CAP,U 1-10 Z F a

MAIN O C 0205 87-A12-790-080 C-CAP,U 560P-50 J CH a
MAIN O C 0206 87-012-191-080 C-CAP,U 68P-50 J CH a
MAIN O C 0207 87-010-787-080 C-CAP,U 0.022-25 K B GRM a
MAIN O C 0209 87-012-286-080 C-CAP,U 0.01-25 K B GRM a
MAIN O C 0210 87-012-286-080 C-CAP,U 0.01-25 K B GRM a
MAIN O C 0211 87-A12-173-080 C-CAP,U 330P-50 CH a
MAIN O C 0212 87-012-286-080 C-CAP,U 0.01-25 K B GRM a
MAIN O C 0214 87-A10-047-080 C-CAP,U 1-10 Z F a
MAIN O C 0215 87-012-286-080 C-CAP,U 0.01-25 K B GRM a
MAIN O C 0216 87-012-195-080 C-CAP,U 100P-50 J CH GRM a

HS-TX426
YZ1SC
MAIN O C 0218 87-012-286-080 C-CAP,U 0.01-25 K B GRM a
MAIN O C 0219 87-012-162-080 C-CAP,U 1P-50 C CH GRM a
MAIN O C 0220 87-012-199-080 C-CAP,U 220P-50 J CH GRM a
MAIN O C 0221 87-012-195-080 C-CAP,U 100P-50 J CH GRM a
MAIN O C 0222 87-012-172-080 C-CAP,U 10P-50 D CH a
MAIN O C 0223 87-012-251-080 C-CAP,U 27P-50 J UJ a
MAIN O C 0224 87-012-274-080 C-CAP,U 1000P-50 K B GRM a
MAIN O C 0226 87-A11-056-080 C-CAP,U 1-10 Z F a
MAIN O C 0227 87-010-831-080 C-CAP,U 0.1-16 Z F a
MAIN O C 0228 87-A11-056-080 C-CAP,U 1-10 Z F a

MAIN O C 0229 87-010-831-080 C-CAP,U 0.1-16 Z F a
MAIN O C 0230 87-010-502-040 CAP,E 100-4 M 5L SRE a
MAIN O C 0231 87-010-786-080 C-CAP,U 0.018-25 K B GRM a
MAIN O C 0232 87-010-786-080 C-CAP,U 0.018-25 K B GRM a
MAIN O C 0233 87-010-831-080 C-CAP,U 0.1-16 Z F a
MAIN O C 0234 87-010-831-080 C-CAP,U 0.1-16 Z F a
MAIN O C 0235 87-010-831-080 C-CAP,U 0.1-16 Z F a
MAIN O C 0236 87-010-831-080 C-CAP,U 0.1-16 Z F a
MAIN O C 0237 87-A11-056-080 C-CAP,U 1-10 Z F a
MAIN O C 0238 87-A10-466-080 C-CAP,TN 3.3-6.3 A TCF a

HS-TX426
YZ1SC
MAIN O C 0239 87-A10-707-080 C-CAP,U 0.47-10 Z F a
MAIN O C 0301 87-010-831-080 C-CAP,U 0.1-16 Z F a
MAIN O C 0302 87-010-503-040 CAP,E 220-4 M 5L SRE a
MAIN O C 0351 87-A11-056-080 C-CAP,U 1-10 Z F a
MAIN O C 0352 87-010-831-080 C-CAP,U 0.1-16 Z F a
MAIN O C 0353 87-A11-282-080 C-CAP,S 1-16 K B a
MAIN O C 0354 87-012-286-080 C-CAP,U 0.01-25 K B GRM a
MAIN O C 0355 87-012-286-080 C-CAP,U 0.01-25 K B GRM a
MAIN O C 0356 87-A11-056-080 C-CAP,U 1-10 Z F a
MAIN O C 0401 87-010-831-080 C-CAP,U 0.1-16 Z F a

MAIN O C 0402 87-010-831-080 C-CAP,U 0.1-16 Z F a
MAIN O C 0501 87-012-176-080 C-CAP,U 15P-50 J CH a
MAIN O C 0502 87-012-174-080 C-CAP,U 12P-50 J CH a
MAIN O C 0503 87-A11-056-080 C-CAP,U 1-10 Z F a
MAIN O C 0504 87-012-274-080 C-CAP,U 1000P-50 K B GRM a
MAIN O C 0505 87-010-831-080 C-CAP,U 0.1-16 Z F a
MAIN O C 0506 87-016-396-080 C-CAP,U 0.22-16 Z F a
MAIN O C 0507 87-012-286-080 C-CAP,U 0.01-25 K B GRM a
MAIN O C 0508 87-A11-056-080 C-CAP,U 1-10 Z F a
MAIN O C 0509 87-010-831-080 C-CAP,U 0.1-16 Z F a

All components used on this model at the production line are shown in this service manual.
However, please note that not all components will be available as spare parts for after-sales service.
Components marked S and O are designated as spare parts for service and will be stocked at the spare parts centers.
Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers.

– 3 –

! = ! SAFETY PARTS
C = Components marked

All components used on this model at the production line are shown in this service manual.
However, please note that not all components will be available as spare parts for after-sales service.
Components marked S and O are designated as spare parts for service and will be stocked at the spare parts centers.
Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers.

UNIT-NAME ! C REF-NO P ARTS-NO PARTS-NAME SUFFIX&MODEL

HS-TX426
YZ1SC
MAIN O C 0511 87-012-274-080 C-CAP,U 1000P-50 K B GRM a
MAIN O CF 0201 87-A91-162-010 FLTR,PFS450A7 a
MAIN O D 0201 87-A41-065-040 C-VARI-CAP,SVC347 a
MAIN O D 0202 87-A40-957-040 C-VARI-CAP,HVC200A a
MAIN O D 0203 87-A40-957-040 C-VARI-CAP,HVC200A a
MAIN S D 0302 87-A40-360-080 C-DIODE,MA786 a
MAIN S D 0351 87-A40-883-040 C-ZENER,02DZ13-Y a
MAIN S D 0352 87-001-553-080 C-DIODE,1SS322 a
MAIN S D 0501 87-A40-964-040 C-ZENER,02DZ2.0-Z a
MAIN O D 0551 87-A41-141-040 C-LED,SML-110MT GRN (M/N) a

MAIN O D 0552 87-A41-141-040 C-LED,SML-110MT GRN (M/N) a
MAIN S IC 0101 87-A21-684-040 C-IC,TA2145AF a
MAIN S IC 0201 87-A21-232-040 C-IC,TA2111FN a
MAIN S IC 0501 8C-HRC-603-030 C-IC,LC72348W-9A84 a
MAIN O IFT0201 87-A90-663-010 IFT,MW 5L H6.4 a
MAIN O J 0101 87-A60-438-010 JACK,3.5 BLK ST W/O SW (1537) a
MAIN O L 0101 87-A50-581-080 C-COIL,S FCM2012H 252705 a
MAIN O L 0103 87-A50-581-080 C-COIL,S FCM2012H 252705 a
MAIN O L 0104 87-A50-581-080 C-COIL,S FCM2012H 252705 a
MAIN O L 0201 8Z-HRC-605-010 BAR-ANT,MW a

HS-TX426
YZ1SC
MAIN O L 0202 8C-HRC-607-010 COIL,FMRF a
MAIN O L 0203 8C-HRC-608-010 COIL,FMOSC a
MAIN O L 0204 87-005-742-080 COIL,100UH J SP02 a
MAIN O L 0205 87-A50-597-080 C-COIL,S 10UH LQG21F100N a
MAIN O L 0301 87-A50-691-010 COIL,47UH TROID a
MAIN O L 0351 87-A50-354-080 C-COIL,220UH LQH3C a
MAIN O LCD0501 8C-HRC-606-010 LCD,ASSY CHR-C (LC72348)LIGHT a
MAIN S Q 0102 87-026-264-080 C-TR,RN1411 a
MAIN S Q 0201 89-327-143-080 C-TR,2SC2714O a
MAIN S Q 0202 87-026-268-080 C-TR,RN2411 a

MAIN S Q 0301 89-115-884-080 C-TR,2SA1588Y a
MAIN S Q 0302 89-113-625-080 C-TR,2SA1362GR a
MAIN S Q 0303 87-026-262-080 C-TR,RN1407 a
MAIN S Q 0304 89-115-884-080 C-TR,2SA1588Y a
MAIN S Q 0401 87-026-264-080 C-TR,RN1411 a
MAIN S Q 0402 87-026-264-080 C-TR,RN1411 a
MAIN S Q 0551 87-026-264-080 C-TR,RN1411 a
MAIN X R 0101 88-108-183-080 C-RES,U 18K-1/16W J a
MAIN X R 0102 88-108-183-080 C-RES,U 18K-1/16W J a
MAIN X R 0103 88-108-122-080 C-RES,U 1.2K-1/16W J a

HS-TX426
YZ1SC
MAIN X R 0104 88-108-122-080 C-RES,U 1.2K-1/16W J a
MAIN X R 0105 88-108-184-080 C-RES,U 180K-1/16W J a
MAIN X R 0106 88-108-184-080 C-RES,U 180K-1/16W J a
MAIN X R 0107 88-108-335-080 C-RES,U 3.3M-1/16W J a
MAIN X R 0108 88-108-335-080 C-RES,U 3.3M-1/16W J a
MAIN X R 0109 88-108-822-080 C-RES,U 8.2K-1/16W J a
MAIN X R 0110 88-108-822-080 C-RES,U 8.2K-1/16W J a
MAIN X R 0111 88-108-109-080 C-RES,U 1-1/16W J a
MAIN X R 0112 88-108-109-080 C-RES,U 1-1/16W J a
MAIN X R 0113 88-108-470-080 C-RES,U 47-1/16W J a

MAIN X R 0114 88-108-470-080 C-RES,U 47-1/16W J a
MAIN X R 0120 88-108-152-080 C-RES,U 1.5K-1/16W J a
MAIN X R 0121 88-108-102-080 C-RES,U 1K-1/16W J a
MAIN X R 0122 88-108-103-080 C-RES,U 10K-1/16W J a
MAIN X R 0123 88-108-103-080 C-RES,U 10K-1/16W J a
MAIN X R 0124 88-108-563-080 C-RES,U 56K-1/16W J a
MAIN X R 0125 88-108-152-080 C-RES,U 1.5K-1/16W J a
MAIN O R 0126 87-A00-530-080 C-RES,S 180-1/10W F a
MAIN X R 0128 88-108-182-080 C-RES,U 1.8K-1/16W J a
MAIN X R 0129 88-108-221-080 C-RES,U 220-1/16W J a

HS-TX426
YZ1SC
MAIN X R 0130 88-108-562-080 C-RES,U 5.6K-1/16W J a
MAIN X R 0201 88-108-102-080 C-RES,U 1K-1/16W J a
MAIN X R 0202 88-108-153-080 C-RES,U 15K-1/16W J a
MAIN X R 0203 88-108-104-080 C-RES,U 100K-1/16W J a
MAIN X R 0204 88-108-474-080 C-RES,U 470K-1/16W J a
MAIN X R 0205 88-108-104-080 C-RES,U 100K-1/16W J a
MAIN X R 0206 88-108-104-080 C-RES,U 100K-1/16W J a
MAIN X R 0207 88-108-104-080 C-RES,U 100K-1/16W J a
MAIN X R 0208 88-108-330-080 C-RES,U 33-1/16W J a
MAIN X R 0209 88-108-101-080 C-RES,U 100-1/16W J a

MAIN X R 0210 88-108-473-080 C-RES,U 47K-1/16W J a
MAIN X R 0211 88-108-471-080 C-RES,U 470-1/16W J a
MAIN X R 0212 88-108-221-080 C-RES,U 220-1/16W J a
MAIN X R 0215 88-108-153-080 C-RES,U 15K-1/16W J a
MAIN X R 0216 88-108-332-080 C-RES,U 3.3K-1/16W J a
MAIN X R 0217 88-108-822-080 C-RES,U 8.2K-1/16W J a
MAIN X R 0218 88-108-822-080 C-RES,U 8.2K-1/16W J a
MAIN X R 0219 88-108-150-080 C-RES,U 15-1/16W J a
MAIN X R 0220 88-108-153-080 C-RES,U 15K-1/16W J a
MAIN X R 0221 88-108-153-080 C-RES,U 15K-1/16W J a

– 4 –

! = ! SAFETY PARTS
C = Components marked

All components used on this model at the production line are shown in this service manual.
However, please note that not all components will be available as spare parts for after-sales service.
Components marked S and O are designated as spare parts for service and will be stocked at the spare parts centers.
Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers.

UNIT-NAME ! C REF-NO P ARTS-NO PARTS-NAME SUFFIX&MODEL

HS-TX426
YZ1SC
MAIN X R 0222 88-108-331-080 C-RES,U 330-1/16W J a
MAIN X R 0301 88-108-569-080 C-RES,U 5.6-1/16W J a
MAIN X R 0302 88-108-474-080 C-RES,U 470K-1/16W J a
MAIN X R 0303 88-108-152-080 C-RES,U 1.5K-1/16W J a
MAIN X R 0304 88-108-473-080 C-RES,U 47K-1/16W J a
MAIN X R 0305 88-108-681-080 C-RES,U 680-1/16W J a
MAIN X R 0306 88-108-474-080 C-RES,U 470K-1/16W J a
MAIN X R 0307 88-108-821-080 C-RES,U 820-1/16W J a
MAIN X R 0308 88-108-100-080 C-RES,U 10-1/16W J a
MAIN X R 0351 88-108-220-080 C-RES,U 22-1/16W J a

MAIN X R 0352 88-108-101-080 C-RES,U 100-1/16W J a
MAIN X R 0353 88-108-392-080 C-RES,U 3.9K-1/16W J a
MAIN X R 0354 88-108-153-080 C-RES,U 15K-1/16W J a
MAIN X R 0355 88-108-102-080 C-RES,U 1K-1/16W J a
MAIN X R 0401 88-108-823-080 C-RES,U 82K-1/16W J a
MAIN X R 0402 88-108-823-080 C-RES,U 82K-1/16W J a
MAIN X R 0403 88-108-152-080 C-RES,U 1.5K-1/16W J a
MAIN X R 0404 88-108-152-080 C-RES,U 1.5K-1/16W J a
MAIN X R 0501 88-108-335-080 C-RES,U 3.3M-1/16W J a
MAIN X R 0503 88-108-335-080 C-RES,U 3.3M-1/16W J a

HS-TX426
YZ1SC
MAIN X R 0506 88-108-335-080 C-RES,U 3.3M-1/16W J a
MAIN X R 0507 88-108-103-080 C-RES,U 10K-1/16W J a
MAIN X R 0508 88-108-224-080 C-RES,U 220K-1/16W J a
MAIN X R 0509 88-108-224-080 C-RES,U 220K-1/16W J a
MAIN X R 0510 88-108-104-080 C-RES,U 100K-1/16W J a
MAIN X R 0511 88-108-335-080 C-RES,U 3.3M-1/16W J a
MAIN O R 0513 87-022-290-080 C-RES,U 220K-1/16W F a
MAIN X R 0515 88-108-335-080 C-RES,U 3.3M-1/16W J a
MAIN X R 0556 88-108-470-080 C-RES,U 47-1/16W J a
MAIN X R 0557 88-108-470-080 C-RES,U 47-1/16W J a

MAIN O S 0301 87-A91-077-010 SW,LEAF a
MAIN O S 0501 87-A90-050-010 SW,SL 2-2-2 NS (BLK) a
MAIN O SFR0101 87-A92-045-040 C-SFR,K 1K H RH03AEC a
MAIN SH 0002 8C-HRC-621-010 SH,STATIC PT100 B 12X12 a
MAIN O TC 0201 87-011-254-080 TRIMMER,CER 20P 4.0X4.5 ECR a
MAIN O VR 0101 87-A90-981-110 VR,RTRY 20KBX1 a
MAIN O X 0501 87-A70-082-110 VIB,XTAL 75KHZ a

– 5 –

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

Form

L

Dimensions (mm)

t

W

0.55

Resistor Code

108

118

128

LW t

1.0 0.5 0.35 104

1.6 0.8 0.45

2 1.25 0.45

3.2

1.6

: A
: A

TRANSISTOR ILLUSTRATION

C

B

E

2SA1362GR
2SA1588Y
2SC2714O
RN1407
RN1411
RN2411

– 6 –

WIRING (MAIN) <1 / 2>

32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

 7 

R

S

T

U