Aiwa HS-TA425 User manual

SERVICE MANUAL
DATA
STEREORADIO
CASSETTE PLAYER
S/M Code No. 09-027-361-2R1
REVISION
• This Service Manual is the “Revision Publishing” and replaces “Simple Manual”
(S/M Code No.09-027-361-2T1)
HS-TA425
YU(S),YL(S),YC(S),
YZ(S),YJ(S)
BASIC TAPE MECHANISM :8ZM-3 P5NC
BASIC TAPE MECHANISM :8ZM-3P15NC(481YU)
HS-TA481
YU(WT)
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

-2-
SPECIFICATIONS-1/1
•
Design and specifications are subject to change without
notice.
Frequency range:
Reception area (YU,YC,YL) AM : 530 – 1,710 kHz
FM1, FM2 87.5 – 108.1 MHz
Reception area (YZ,YJ) AM : 530 – 1,605 kHz
FM : 87.5 – 108 MHz
Maximum output: 12 mW + 12 mW (EIAJ 32 ohms) (YU,YC,YL,YJ)
4 mW + 4 mW (EIAJ 16 ohms) (YZ)
Power source: DC 3 V using two size AA (R6) dry cell
batteries.
Maximum dimensions (W x H x D):
88.5 (W) × 111.3 (H) ×35.8 (D) mm,
(3 1/2 × 4 1/2 × 1 7/16 in.)
(excluding projecting parts and controls)
Weight Approx. 143 g, (5.0 oz)
(excluding batteries)
Supplied headphones HP-M006 (YZ)
Type: In-ear type
Impedance: 32 ohms
Sensitivity: 105 dB/mW
Recommended commercially available headphones (YZ)
Type: In-ear type/Headband
type/Vertical type
Impedance: 16 – 32 ohms
Sensitivity: 100 – 109 dB/mW
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T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

! = ! SAFTY 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 PARTS-NO PARTS-NAME SUFFIX&MODEL
-3-
ACCESSORIES PARTS LIST -1/1
HS-TA425 HS-TA481 HS-TA425 HS-TA425 HS-TA425 HS-TA425
YUBSC YU1BWTC YL1SC YJ1SC YZ1SC YCB2SC
X AS1001 87-080-027-210 S-SCREW,CLIP-BELT4-5.5 POLYCAR a b c d e f
O AS1002 87-B30-319-110 HEADPHONE,HP-M046(S) NECK-BAND a . . . . f
O AS1003 87-B30-448-110 HEADPHONE,HP-M029(T2DG) . b . . . .
x AS1004 87-B30-558-010 HEADPHONE,HP-M006(T2)SP . . c d e .
X AS1005 8Z-HRB-051-110 CLIP,BELT a b c d e f
X AS1006 8C-HRH-851-010 COVER,TOP 481 YU1BWTC a b . . . f
X AS1007 8C-HRH-852-010 COVER,BOTTOM 481 YU1BWTC a b . . . f
X AS1008 8C-HRH-853-010 BD,PRINTED 481 YU1BWTC . b . . . .
X AS1009 8C-HRH-856-010 BD,PRINTED 425 YUBSC a . . . . .
X AS1010 8C-HRH-873-010 BD,PRINTED 425 YCBSC . . . . . f
X AS1011 87-B50-078-010 LIST,FACILITY(S)-0007 . . c d e .
O AS1012 8C-HRH-901-010 IB,YU/YC (ESF)S TA425 a . . . . f
O AS1013 8C-HRH-902-010 IB,YJ/YHT (ECCA)S TA425 . . . d . .
O AS1014 8C-HRH-904-010 IB,YL(ESP)S TA425 . . c . . .
O AS1015 8C-HRH-905-010 IB,YZ(EGF)S TA425 . . . . e .
O AS1016 8C-HRH-906-010 IB,YZ(SID)S TA425 . . . . e .
O AS1017 8C-HRH-907-010 IB,YZ(PHC)S TA425 . . . . e .
X AS1018 8C-HRH-910-010 WARR-CARD,U TA425 a . . . . .
O AS1019 8C-HRH-911-010 IB,YU(ESF)S TA481 . b . . . .
X AS1020 8C-HRH-918-010 WARR-CARD,C(E) TA425 . . . . . f
HS-TA425 HS-TA481 HS-TA425 HS-TA425 HS-TA425 HS-TA425
YUBSC YU1BWTC YL1SC YJ1SC YZ1SC YCB2SC
X AS1021 8C-HRH-919-010 WARR-CARD,C(F) TA425 . . . . . f
X AS1022 8C-HRH-920-010 WARR-CARD,U TA481 . b . . . .
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4 2
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

! = ! SAFTY 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 PARTS-NO PARTS-NAME SUFFIX&MODEL
-4-
ELECTRICAL PARTS LIST -1/3
HS-TA425 HS-TA481 HS-TA425 HS-TA425 HS-TA425 HS-TA425
YUBSC YU1BWTC YL1SC YJ1SC YZ1SC YCB2SC
MAIN O BPF0101 87-A91-680-010 FLTR,GFMB5-C3 a b c d e f
MAIN O C 0001 87-012-275-080 C-CAP,U 1200P-50 K B GRM a b c d e f
MAIN O C 0002 87-012-275-080 C-CAP,U 1200P-50 K B GRM a b c d e f
MAIN O C 0003 87-010-501-040 CAP,E 47-4 M 5L SRE a b c d e f
MAIN O C 0004 87-A10-488-040 CAP,E 47-4 7L SR a b c d e f
MAIN O C 0007 87-012-285-080 C-CAP,U 8200P-50 K B GRM a b c d e f
MAIN O C 0008 87-012-285-080 C-CAP,U 8200P-50 K B GRM a b c d e f
MAIN O C 0009 87-010-831-080 C-CAP,U 0.1-16 Z F GRM a b c d e f
MAIN O C 0010 87-010-501-040 CAP,E 47-4 M 5L SRE a b c d e f
MAIN O C 0011 87-010-805-080 C-CAP,S 1-16 Z F GRM a b c d e f
MAIN O C 0012 87-010-805-080 C-CAP,S 1-16 Z F GRM a b c d e f
MAIN O C 0013 87-012-274-080 C-CAP,U 1000P-50 K B GRM a b c d e f
MAIN O C 0014 87-012-274-080 C-CAP,U 1000P-50 K B GRM a b c d e f
MAIN O C 0015 87-A10-489-040 CAP,E 220-4 7L SR a b c d e f
MAIN O C 0016 87-A10-489-040 CAP,E 220-4 7L SR a b c d e f
MAIN O C 0017 87-010-831-080 C-CAP,U 0.1-16 Z F GRM a b c d e f
MAIN O C 0018 87-010-831-080 C-CAP,U 0.1-16 Z F GRM a b c d e f
MAIN O C 0019 87-A10-262-080 C-CAP,U 1-10 Z F a b c d e f
MAIN O C 0051 87-A10-489-040 CAP,E 220-4 7L SR a b c d e f
MAIN O C 0052 87-A10-262-080 C-CAP,U 1-10 Z F a b c d e f
HS-TA425 HS-TA481 HS-TA425 HS-TA425 HS-TA425 HS-TA425
YUBSC YU1BWTC YL1SC YJ1SC YZ1SC YCB2SC
MAIN O C 0101 87-012-162-080 C-CAP,U 1P-50 C CH GRM a b c d e f
MAIN O C 0102 87-012-178-080 C-CAP,U 18P-50 J CH GRM a b c . . f
MAIN O C 0102 87-012-179-080 C-CAP,U 20P-50 J CH GRM . . . d e .
MAIN O C 0103 87-012-183-080 C-CAP,U 30P-50 J CH GRM a b c . . f
MAIN O C 0103 87-012-184-080 C-CAP,U 33P-50 J CH GRM . . . d e .
MAIN O C 0104 87-012-165-080 C-CAP,U 3P-50 C CH GRM a b c . . f
MAIN O C 0104 87-012-167-080 C-CAP,U 5P-50 C CH GRM . . . d e .
MAIN O C 0109 87-012-274-080 C-CAP,U 1000P-50 K B GRM a b c d e f
MAIN O C 0110 87-010-805-080 C-CAP,S 1-16 Z F GRM a b c d e f
MAIN O C 0111 87-012-274-080 C-CAP,U 1000P-50 K B GRM a b c d e f
MAIN O C 0112 87-010-831-080 C-CAP,U 0.1-16 Z F GRM a b c d e f
MAIN O C 0113 87-A10-262-080 C-CAP,U 1-10 Z F a b c d e f
MAIN O C 0114 87-010-831-080 C-CAP,U 0.1-16 Z F GRM a b c d e f
MAIN O C 0115 87-010-784-080 C-CAP,U 0.012-25 K B GRM a b c d e f
MAIN O C 0116 87-010-784-080 C-CAP,U 0.012-25 K B GRM a b c d e f
MAIN O C 0117 87-010-785-080 C-CAP,U 0.015-25 K B GRM a b c d e f
MAIN O C 0118 87-010-785-080 C-CAP,U 0.015-25 K B GRM a b c d e f
MAIN O C 0119 87-010-831-080 C-CAP,U 0.1-16 Z F GRM a b c d e f
MAIN O C 0120 87-010-831-080 C-CAP,U 0.1-16 Z F GRM a b c d e f
MAIN O C 0121 87-015-688-040 CAP,E 4.7-35 M 7L SRA a b c d e f
HS-TA425 HS-TA481 HS-TA425 HS-TA425 HS-TA425 HS-TA425
YUBSC YU1BWTC YL1SC YJ1SC YZ1SC YCB2SC
MAIN O C 0122 87-A10-489-040 CAP,E 220-4 7L SR a b c d e f
MAIN O C 0123 87-012-286-080 C-CAP,U 0.01-25 K B GRM a b c d e f
MAIN O C 0127 87-012-180-080 C-CAP,U 22P-50 J CH GRM a b c d e f
MAIN O C 0401 87-A10-025-080 C-CAP,U 0.22-16 Z F a b c d e f
MAIN O C 0402 87-A10-025-080 C-CAP,U 0.22-16 Z F a b c d e f
MAIN O C 0403 87-010-831-080 C-CAP,U 0.1-16 Z F GRM a b c d e f
MAIN X CD 0101 87-A90-990-010 FLTR,CDA10.7 MG77AT6-Z a b c d e f
MAIN O CF 0101 87-A91-087-010 FLTR,PFS 450A6 B a b c d e f
MAIN O CF 0102 87-A90-988-010 FLTR,KMFC5153 T6-Z a b c d e f
MAIN X CF 0102 87-A90-989-010 FLTR,SFE10.7 MS239T6-Z a b c d e f
MAIN S D 0001 87-A40-630-040 C-DIODE,RB411D . b . d . .
MAIN S IC 0001 87-A21-684-040 C-IC,TA2145AF a b c d e f
MAIN S IC 0101 87-A20-851-040 C-IC,TA2111F a b c d e f
MAIN O J 0001 85-HRL-623-010 JACK,3.5 BLK ST BLK a b c d e f
MAIN O J 0002 87-A61-124-110 JACK,DC DIA2.75 BLK TC . b . d . .
MAIN X JR 0001 88-108-000-080 C-JUMPER,U a . c . e f
MAIN X JR 0002 88-108-000-080 C-JUMPER,U a b c d e f
MAIN X JR 0003 88-108-000-080 C-JUMPER,U a b c d e f
MAIN X JR 0004 88-129-000-080 C-JUMPER, 3216 a b c d e f
MAIN X JR 0005 88-108-000-080 C-JUMPER,U a b c d e f
HS-TA425 HS-TA481 HS-TA425 HS-TA425 HS-TA425 HS-TA425
YUBSC YU1BWTC YL1SC YJ1SC YZ1SC YCB2SC
MAIN X JR 0006 88-108-000-080 C-JUMPER,U a b c d e f
MAIN X JR 0007 88-108-000-080 C-JUMPER,U a b c d e f
MAIN X JR 0008 88-129-000-080 C-JUMPER, 3216 a b c d e f
MAIN X JR 0010 88-108-000-080 C-JUMPER,U a b c d e f
MAIN X JW 0001 88-100-000-010 PLATING-JW, 0.58 SN95 a b c d e f
MAIN X JW 0002 88-100-000-010 PLATING-JW, 0.58 SN95 a b c d e f
MAIN X JW 0003 88-100-000-010 PLATING-JW, 0.58 SN95 a b c d e f
MAIN X JW 0004 88-100-000-010 PLATING-JW, 0.58 SN95 a b c d e f
MAIN X JW 0005 88-100-000-010 PLATING-JW, 0.58 SN95 a b c d e f
MAIN X JW 0006 88-100-000-010 PLATING-JW, 0.58 SN95 a b c d e f
MAIN X JW 0007 88-100-000-010 PLATING-JW, 0.58 SN95 a b c d e f
MAIN X JW 0008 88-100-000-010 PLATING-JW, 0.58 SN95 a b c d e f
MAIN X JW 0009 88-100-000-010 PLATING-JW, 0.58 SN95 a b c d e f
MAIN X JW 0010 88-100-000-010 PLATING-JW, 0.58 SN95 a b c d e f
MAIN X JW 0011 88-100-000-010 PLATING-JW, 0.58 SN95 a b c d e f
MAIN X JW 0012 88-100-000-010 PLATING-JW, 0.58 SN95 a b c d e f
MAIN X JW 0013 88-100-000-010 PLATING-JW, 0.58 SN95 a b c d e f
MAIN X JW 0014 88-100-000-010 PLATING-JW, 0.58 SN95 a b c d e f
MAIN O L 0001 87-A50-605-010 COIL,RF CHOKE CECS a b c d e f
MAIN X L 0002 88-121-100-080 RES,10-1/8W J a b c d e f
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7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

! = ! SAFTY 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 PARTS-NO PARTS-NAME SUFFIX&MODEL
-5-
ELECTRICAL PARTS LIST -2/3
HS-TA425 HS-TA481 HS-TA425 HS-TA425 HS-TA425 HS-TA425
YUBSC YU1BWTC YL1SC YJ1SC YZ1SC YCB2SC
MAIN O L 0101 8C-HRH-602-010 BAR-ANT,MW a b c d e f
MAIN O L 0102 8C-HRH-604-010 COIL,FM RF a b c d e f
MAIN O L 0103 8C-HRH-603-010 COIL,FM OSC a b c d e f
MAIN O L 0104 87-A50-795-010 COIL,AM OSC 5PY 270UH a b c d e f
MAIN O L 0105 87-A90-663-010 IFT,MW 5L H6.4 a b c d e f
MAIN O M 0001 87-A91-379-010 MOT,BCY3B-13 a b c d e f
MAIN S Q 0001 87-026-262-080 C-TR,RN1407 a b c d e f
MAIN S Q 0002 87-026-268-080 C-TR,RN2411 a b c d e f
MAIN S Q 0003 87-026-262-080 C-TR,RN1407 a b c d e f
MAIN X R 0001 88-108-681-080 C-RES,U 680-1/16W J a b c d e f
MAIN X R 0002 88-108-681-080 C-RES,U 680-1/16W J a b c d e f
MAIN X R 0003 88-108-564-080 C-RES,U 560K-1/16W J a b c d e f
MAIN X R 0004 88-108-564-080 C-RES,U 560K-1/16W J a b c d e f
MAIN X R 0005 88-108-183-080 C-RES,U 18K-1/16W J a b c d e f
MAIN X R 0006 88-108-183-080 C-RES,U 18K-1/16W J a b c d e f
MAIN X R 0009 88-108-183-080 C-RES,U 18K-1/16W J a b c d e f
MAIN X R 0010 88-108-183-080 C-RES,U 18K-1/16W J a b c d e f
MAIN X R 0011 88-108-000-080 C-JUMPER,U a b c d . f
MAIN X R 0011 88-108-560-080 C-RES,U 56-1/16W J . . . . e .
MAIN X R 0012 88-108-000-080 C-JUMPER,U a b c d . f
HS-TA425 HS-TA481 HS-TA425 HS-TA425 HS-TA425 HS-TA425
YUBSC YU1BWTC YL1SC YJ1SC YZ1SC YCB2SC
MAIN X R 0012 88-108-560-080 C-RES,U 56-1/16W J . . . . e .
MAIN X R 0013 88-108-399-080 C-RES,U 3.9-1/16W J a b c d e f
MAIN X R 0014 88-108-399-080 C-RES,U 3.9-1/16W J a b c d e f
MAIN O R 0016 88-108-103-080 C-RES,U 10K-1/16W J a b c d e f
MAIN X R 0017 88-129-000-080 C-JUMPER, 3216 a b c d e f
MAIN X R 0018 88-108-152-080 C-RES,U 1.5K-1/16W J a b c d e f
MAIN O R 0019 88-108-563-080 C-RES,U 56K-1/16W J a b c d e f
MAIN X R 0020 88-108-333-080 C-RES,U 33K-1/16W J a b c d e f
MAIN O R 0051 87-022-335-080 C-RES,S 180-1/10W F a b c d e f
MAIN X R 0053 88-108-182-080 C-RES,U 1.8K-1/16W J a b c d e f
MAIN X R 0054 88-108-221-080 C-RES,U 220-1/16W J a b c d e f
MAIN X R 0101 88-108-000-080 C-JUMPER,U a b c d e f
MAIN O R 0102 88-108-332-080 C-RES,U 3.3K-1/16W J a b c d e f
MAIN X R 0103 88-108-683-080 C-RES,U 68K-1/16W J a b c d e f
MAIN X R 0104 88-108-683-080 C-RES,U 68K-1/16W J a b c d e f
MAIN X R 0105 88-108-120-080 C-RES,U 12-1/16W J a b c d e f
MAIN X R 0106 88-108-100-080 C-RES,U 10-1/16W J a b c d e f
MAIN X R 0107 88-108-122-080 C-RES,U 1.2K-1/16W J a b c d e f
MAIN X R 0108 88-108-220-080 C-RES,U 22-1/16W J a b c d e f
MAIN O R 0401 88-108-123-080 C-RES,U 12K-1/16W J a b c d e f
HS-TA425 HS-TA481 HS-TA425 HS-TA425 HS-TA425 HS-TA425
YUBSC YU1BWTC YL1SC YJ1SC YZ1SC YCB2SC
MAIN O R 0402 88-108-123-080 C-RES,U 12K-1/16W J a b c d e f
MAIN O R 0403 88-108-123-080 C-RES,U 12K-1/16W J a b c d e f
MAIN O S 0001 87-A91-726-110 SW,LEAF P5 a b c d e f
MAIN O S 0002 87-A91-286-010 C-SW,SL 1-2-2 SS-350-B22B-C-L a b c d e f
MAIN O S 0003 8Z-HRB-607-010 SW,SL 2-2-2 SSZZ-S-502(S) a b c d e f
MAIN O S 0101 87-A92-137-010 C-SW,SL 1-1-2 SSSS8-S501 a b c d e f
MAIN O S 0401 87-A92-137-010 C-SW,SL 1-1-2 SSSS8-S501 a b c d e f
MAIN O SFR0051 87-024-050-010 SFR,1K V VZ066H1 a b c d e f
MAIN O VC 0101 87-A91-700-010 TUN-CAP,20P-160P H7.5 450KHZ-N a b c d e f
MAIN O VR 0001 87-A90-981-110 VR,RTRY 20KBX1 a b c d e f
w w w . x i a o y u 1 6 3 . c o m
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3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

-6-
ELECTRICAL PARTS LIST -3/3
88
A
Resistor Code
Chip Resistor Part Coding
Figure
Value of resistor
Chip resistor
Wattage Type Tolerance
1/16W
1/10W
1/8W
1608
2125
3216
5%
5%
5%
CJ
CJ
CJ
Form
LW t
1.6 0.8 0.45
2 1.25 0.45
3.2 1.6
108
118
128
: A
: A
CHIP RESISTOR PART CODE
0.55
Resistor Code
Dimensions (mm)
Symbol
1/16W 1005 5% CJ 1.0 0.5 0.35 104
Lt
W
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

-7-
TRANSISTOR ILLUSTRATION -1/1
RN2411
RN1407
B
E
C
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

-8-
SCHEMATIC DIAGRAM -1/1
EXCEPT YZ:
J2
DC JACK
YJ1,YU1
MODELS
1234567
24 23 22 21 20 19 18
8910
17 16 15
11 12
14 13
PRE
V
REF
B
PRE
A
RIPPLE
FILTER
VOL
VOL
VOL
CONTROL
123456789101112
131415161718192021222324
PW
AB
PW PW
C
GND
PRE
INA NFA PRE PW VCTL OUTB OUTA OUTC
PW
INC GND
PW GVN
GND
VREF INB NFB
OUTB INB
PW PW
VCC
GVN
VCC RT
GVN
CTL
PRE GVN
OUT
SW
PRE
PRE
SW
RF IN
R
R
R
1
234 5
BPF
123
C7
C8
C9
C11
C12
C13
C14
C19
C52
C101
C109
C110
C111
C112 C114
C123
C403
CD101
CF101
CF102
IC1
IC101
J1
L1
L105
R3
R4
R5
R6
R10
R16
R17
R18
R19
R53 R54
R101
R102
R105
R106
R107
R108
R401
R402
R403
VC101
VR1
BPF101
C121
C122
S2
C4
C15
C16
C51
SFR51
C3
R9
C10
S3
C113
L2
R103
R104
R2
R1
R14 R13
C17
C18
Q2
C401 C 402
C119
JR2
C115 C116
C118
C117
C102
C103
C104
JR1
R11
R12
C127
R51
S401
S101
L101
L102
L103
Q1
Q3
C2
C1
L104
S1
C120
R20
8200p
50V
K
8200p
50V
K
0.1
16V
Z
1 16V Z
1 16V Z
1000p 50V K
1000p 50V K
1
10V
Z
1 10V Z
1p
50V
C
1000p
50V
K
1 16V Z
1000p
50V
K
0.1
16V
Z
0.1
16V
Z
0.01
25V
K
0.1
16V
Z
FLTR,
CDA10.7
MG77AT6-Z
FLTR, PFS 450A6 B
FLTR,
SFE10.7
MS239T6-
TA2145AF
TA2111F
JACK,
3.5 BLK ST BLK
COIL,
RF CHOKE
IFT,
MW 5L H6.4
560k
1/16W
J
560k
1/16W
J
18k
1/16W
J
18k
1/16W
J
18k 1/16W J
10k
1/16W
J
0
1.5k
1/16W
J
56k
1/16W
J
1.8k
1/16W
J
220
1/16W
J
0
3.3k
1/16W
J
12
1/16W
J
10 1/16W J
1.2k 1/16W J
22
1/16W
J
12k
1/16W
J
12k
1/16W
J
12k
1/16W
J
TUN-CAP,
20P-160P
450KHZ NCE
VR,RTRY
20KBX1
FLTR, GFMB5-C3
4.7
35V
220
4V
SL, 1-2-2
SS-350-B22B-C-L
47 4V
220
4V
220
4V
220
4V
SFR,1K
V VZ066H1
47 4V
18k
1/16W
J
47
4V
SW 2-2-2
SSZZ-S-502(S)
1
10V
Z
10
68k
1/16W
J
68k
1/16W J
680
1/16W
J
680
1/16W
J
3.9
1/16W
J
3.9
1/16W
J
0.1
16V
Z
0.1
16V
Z
RN2411
0.22
16V
Z
0.22
16V
Z
0.1
16V
Z
0
0.012
25V
K
0.012
25V
K
0.015 25V K
0.015 25V K
22p
180
1/10W
F
SL,1-1-2 SSSS8
SL,1-1-2 SSSS8
BAR-ANT
COIL, FM RF
COIL, FM OSC
RN1407
RN1407
1200p
50V
K
1200p
50V
K
AM OSC
5PY
SW,LEAF P5
0.1
16V
Z
33k 1/16W J
FRONT IF MPX
FRONT IF MPX
GOV
PRE-MAIN AMP
5
421 3
3
2
3
2
3
1
2
6
4
5
21
3
5
4
4
6
5
1
3
2
3
1
COM
R
L
FM
(AM)
RL
DET,MPX
FM/AM RF,IF
+
-
BATTERY
R6X2
(DC3V)
PHONES
M
SIGNAL:
:AM
:FM/PB
L
R
FMRF FM
MIX
FM
OSC OSC
AM
MIX
AM
TUN
LED
ST
LED
AGC
AMIF
FMIF
AM
DET
FM
DET
LEVEL
DET
FM
MUTE
AF
BUFF
AF
DECODE VCO DIVIDE
ST/MO
FM/AM
AM LOW CUT MIX OUT AGC VCC AM IF IN FM IF IN GND TUN LED ST LED QUAD
R-OUT
L-OUTLFP1
LFP2
MPX INDET OUTAFCAMOSCFMOSCRF VCCFM RF OUTAM RF IN
RF GNDFM RF IN
TUNER
B
M+
M-
AM FREQ RANGE ADJ
FM TRACKING ADJ FM FREQ RANGE ADJ
AM TRACKING ADJ
AM IF ADJ
M1
RED
BLK
FWD
REV
FWD
REV
PH
RCH
LCH
R
R
L
L
LO
RO
AUDIO
PRE/PWR/GOV
ON
OFF
TU+B
PWR VCC
L101,TC101 L102,TC102
TUNING
L103,TC103 L104,TC104
L
R
FM ST
AM
AM/FM STEREO SELECTOR
TAPE
RADIO
MOTOR+B
TAPE/RADIO SWITCH
TEST POINT
OTHERS:33P
OTHERS:5P
RL : GREY
RR : GREEN
VR : BLUE
FR : BROWN
FL : BLACK
R
N
IF VCC
IF GND
SOLDERING POINT
VREF
GND
VCC
GND
SYMBOL:
OTHERS:20P
TAPE SPEED ADJ
R11&R12
YZ(EAR GUARD):
YU/YL/YC/YU1:18P
YU/YL/YC/YU1:30P
YU/YL/YC/YU1:3P
0.8
(0) (0)
0
(1.2)
0.5
(2.8)
2.5 0.6
(0.5) (2.9)
2.9
(2.3)
2.4
(2.9)
2.9
(0)
00
(0)
2.2
(0) (2.4)
2.1
(1.2)
1.21.2
(1.2)
2.2
(2.2)
2.0
(3.0)(0.7)
0.71.0
(1.0)
0.5
(1.2)
2.9
(2.9)
2.9
(2.9)
2.9
(2.9)
2.9
(2.9)
2.9
(2.9)
FM
(AM)
0 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 0 0
1.31.72.53.02.8
TU:2.9
TP:02.41.11.11.11.11.1
RADIO/TAPE SWITCHING MUTE
PB/STOP
SWITCHING MUTE
(MOTOR)
J1
S401
IC1
SFR51
0~1.0
L105
IC101
Q1
EXCEPT
YJ1,YU1 MODELS
RD411D
VC101 104
SUPPER
BASS
ON
VOLTAGE:
( ) : AM
TAPE
RADIO
FM
AM
S3
REV FWD
NO MARK : FM/PB
S101
S2
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

-9-
123456789101112131415
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
WIRING -1/1
3
1
4
5
1
23
456
112
13
24
1
12
13 24
S401
SUPER
BUSS
M
NRL
BLK
RED
L101
VR1
VOLUME
S3
REV FWD
VC101
TUNING
DC 3V
J2
ON
BATTERY R6 2 (DC3 V)
S101
FM/AM
S2
TAPE/RADIO
1
2
34
5
S1
PLAY
M1
YJ1,YU1
MODELS
PHONES
J1
FM AM
TAPE RADIO
EXCEPTYJ1,YU1
GRY
GRE
BLU
BRN
BLK
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

-10-
ADJUSTMENT -1/1
SFR51
L105
L102
L103
L104
VR1
L101
VC101
J1
MAIN C.B
2
2
3
3
4
4
5
5
61
<TAPE SECTION>
6.Tape Speed Adjustment
Settings :•Test tape : TTA–100
(Tape center)
• Test point : PHONES JACK (J1)
• Volume: MAX
• S-BASS : OFF
• Adjustment location : SFR51
Method : Play back the test tape and adjust SFR51
so that the frequency becomes
3000Hz +10Hz (FWD).Then confirm
WOW is less than 0.50%.
<TUNER SECTION>
1. AM IF Adjustment
L105 ....................................................................... 450kHz
2. AM Frequency range Adjustment
L104 ....................................517kHzk 8kHz<YU,YL,YC>
L104 ....................................515kHz 8kHz<YZ,YJ>
VC101..................................1750kHz 30HZ<YU,YL,YC>
VC101..................................1635kHz 30HZ<YZ>
VC101..................................1635kHz +35/-25kHZ<YJ>
3. AM Tracking Adjustment
L101 ....................................................................... 600kHz
VC101 .................................................................. 1400kHz
Confirm frequency coverage and the waveform at 1000KHz
and mistracking less than 3dB.
4. FM Frequency range Adjustment
L103 ..................... 87.0MHz 0.1MHz<YU,YL,YH,YJ>
VC103 ................ 109.0MHz 0.1MHz<YU,YL,YH,YJ>
5. FM Tracking Adjustment
L102 .................................................................... 88.0MHz
VC101 ............................................................... 108.0MHz
+
_
+
_+
_
+
_
+
_
+
_
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com