Aiwa CT-R402 User manual

SERVICE MANUAL
DATA
STEREO CAR CASSETTE RECEIVER
CT-R402
S/M Code No. 09-02A-455-8N2
YZ (ST)
BASIC TAPE MECHANISM: CDS-363AG1-A

-2-
SPECIFICATIONS -1/1
RADIO SECTION
(FM)
Frequency Range: 87.5 MHz - 108 MHz
Usable Sensitivity: 12.7 dBf
50 dB Quieting Sensitivity: 17.2 dBf
IF Rejection: 100 dB
Frequency Response: 30 Hz - 15,000 Hz
S/N Ratio: 67 dB
Stereo Separation: 35 dB at 1 kHz
Alternate Channel Selectivity: 98 dB
Capture Ratio: 3 dB
(MW)
Frequency Range: 531 kHz - 1,602 kHz
Usable Sensitivity: 30 µV (30 dB)
(LW)
Frequency Range: 144 kHz-288 kHz (1-kHz/9-kHz steps)
Usable Sensitivity: 30 µV (30 dB)
TAPE SECTION
Tape Speed: 4.8 cm/sec.
S/N Ratio: 50 dB
Frequency Response: 40 Hz - 14,000 Hz
Stereo Separation: 40 dB
AUDIO SECTION
Max. Power Output: 40 W x 4 channels
AUX input
Input sensitivity (load impedance) AUX: 300 mV (10 kΩ)
GENERAL
Power-Supply Voltage: 14.4 V (11 to 16 V allowable), DC, negative ground
Load Impedance: 4 Ω
Tone Control: Bass ±10 dB at 100 Hz, Treble ±10 dB at 10 kHz
Installed size: 182 (W) x 53 (H) x 155 (D) mm
• Specifications and external appearance are subject to change without notice due to product improvement.

! = ! 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
CT-R402
YZSL
O AS1001 87-253-032-410 U+2-3 BLK a
O AS1002 87-B10-141-010 NUT,5 TYPE-2 a
O AS1003 87-B10-144-010 W,5.2-10-0.5 a
O AS1004 87-B10-145-010 W-SPR,5.3-8.5-1.5 a
O AS1005 8C-KCG-060-110 CASE,DFP C BLK a
O AS1006 8Z-KC1-231-110 HLDR,HALF -C a
O AS1007 8Z-KC1-232-010 KEY,REMOVE -C a
O AS1008 8Z-KC1-235-010 HLDR,REAR MTG a
O AS1009 87-B10-143-010 UT1+5-15 W/O SLOT a
O AS1010 8Z-KC1-244-010 S-SCREW,5*6 TH+ TAPPING ST a
O AS1011 8Z-KC1-250-010 S-SCREW,HEXAGON a
X AS1012 87-B50-079-010 LIST,FACILITY(B)-0007 a
O AS1013 8C-KCG-933-010 IB,INST YZ/YV (9L,R)SML a
O AS1014 8C-KTA-915-010 IB,YZ(9L)SML R432M/R402 a

! = ! 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 - 1/6
CT-R402
YZSL
AUX O J 0601 85-HRL-623-010 JACK,3.5 BLK ST BLK a
AUX O W 0601 8A-KC7-611-010 F-CABLE,3P (AUX) a
FRONT O C 0601 87-012-272-080 C-CAP,U 680P-50 K B GRM a
FRONT O C 0602 87-A10-504-080 C-CAP,U 0.047-16 K B a
FRONT O C 0603 87-A10-504-080 C-CAP,U 0.047-16 K B a
FRONT O C 0604 87-A10-504-080 C-CAP,U 0.047-16 K B a
FRONT O C 0605 87-A10-504-080 C-CAP,U 0.047-16 K B a
FRONT O CN 0601 88-KTA-602-010 C-CONN,15P CAM-B67 a
FRONT S D 0601 87-A40-817-040 C-ZENER,STZ6.8N a
FRONT S D 0602 87-A40-817-040 C-ZENER,STZ6.8N a
FRONT S IC 0601 88-KT1-608-010 C-IC,LC75854W a
FRONT O LCD0601 8C-KTF-610-010 LCD,CKT-10/15 a
FRONT O LED0601 87-A91-355-040 C-LED,BR1112H-TR-RED a
FRONT O LED0602 87-A91-355-040 C-LED,BR1112H-TR-RED a
FRONT O LED0604 87-A41-159-040 C-LED,SML-012YT YEL a
FRONT O LED0605 87-A41-159-040 C-LED,SML-012YT YEL a
FRONT O LED0606 87-A41-159-040 C-LED,SML-012YT YEL a
FRONT O LED0610 87-A41-158-010 LED,SLI-343YY3F YEL a
FRONT S Q 0601 89-324-122-040 C-TR,2SC2412KR a
FRONT S Q 0603 89-324-122-040 C-TR,2SC2412KR a
CT-R402
YZSL
FRONT O R 0601 88-108-103-080 C-RES,U 10K-1/16W J a
FRONT O R 0602 88-108-102-080 C-RES,U 1K-1/16W J a
FRONT O R 0603 88-108-102-080 C-RES,U 1K-1/16W J a
FRONT O R 0604 88-108-102-080 C-RES,U 1K-1/16W J a
FRONT O R 0605 88-108-102-080 C-RES,U 1K-1/16W J a
FRONT X R 0606 88-108-104-080 C-RES,U 100K-1/16W J a
FRONT X R 0607 88-108-104-080 C-RES,U 100K-1/16W J a
FRONT X R 0608 88-108-392-080 C-RES,U 3.9K-1/16W J a
FRONT O R 0609 88-108-101-080 C-RES,U 100-1/16W J a
FRONT O R 0610 88-108-101-080 C-RES,U 100-1/16W J a
FRONT O R 0611 88-108-101-080 C-RES,U 100-1/16W J a
FRONT X R 0612 88-108-683-080 C-RES,U 68K-1/16W J a
FRONT X R 0613 88-108-471-080 C-RES,U 470-1/16W J a
FRONT X R 0614 88-108-331-080 C-RES,U 330-1/16W J a
FRONT X R 0615 88-108-152-080 C-RES,U 1.5K-1/16W J a
FRONT X R 0616 88-108-682-080 C-RES,U 6.8K-1/16W J a
FRONT X R 0617 88-108-471-080 C-RES,U 470-1/16W J a
FRONT X R 0618 88-108-471-080 C-RES,U 470-1/16W J a
FRONT X R 0619 88-108-471-080 C-RES,U 470-1/16W J a
FRONT O R 0624 88-108-102-080 C-RES,U 1K-1/16W J a
CT-R402
YZSL
FRONT X R 0625 88-108-682-080 C-RES,U 6.8K-1/16W J a
FRONT O SW 0601 87-A91-987-080 SW,TACT SKQCAB a
FRONT O SW 0602 87-A90-164-080 SW,TACT SKQNAB(N) a
FRONT O SW 0603 87-036-339-080 C-SW,TACT SKQM a
FRONT O SW 0604 87-A90-164-080 SW,TACT SKQNAB(N) a
FRONT O SW 0605 87-A91-987-080 SW,TACT SKQCAB a
FRONT O SW 0606 87-A90-164-080 SW,TACT SKQNAB(N) a
FRONT O SW 0607 87-A91-987-080 SW,TACT SKQCAB a
FRONT O SW 0608 87-A90-164-080 SW,TACT SKQNAB(N) a
FRONT O SW 0609 87-A91-987-080 SW,TACT SKQCAB a
FRONT O SW 0610 87-036-339-080 C-SW,TACT SKQM a
FRONT O SW 0611 87-A90-164-080 SW,TACT SKQNAB(N) a
FRONT O SW 0612 87-A90-164-080 SW,TACT SKQNAB(N) a
FRONT O SW 0613 87-A91-987-080 SW,TACT SKQCAB a
FRONT O SW 0614 87-A91-987-080 SW,TACT SKQCAB a
FRONT O SW 0615 87-A90-164-080 SW,TACT SKQNAB(N) a
FRONT O SW 0616 87-A91-987-080 SW,TACT SKQCAB a
FRONT O SW 0621 87-A92-329-010 SW,RTRY SRP-1211VD a
HEAD O CNA0201 8Z-KTG-651-010 CONN ASSY,3P HEAD a
HEAD O CNA0202 8Z-KTG-652-010 CONN ASSY,8P MOTOR a
CT-R402
YZSL
MAIN O ANT0101 8Z-KT1-614-010 ANT,AW-002 a
MAIN O C 0101 87-012-195-080 C-CAP,U 100P-50 J CH GRM a
MAIN O C 0102 87-012-286-080 C-CAP,U 0.01-25 K B GRM a
MAIN O C 0103 87-012-282-080 C-CAP,U 4700P-50 K B GRM a
MAIN O C 0104 87-010-379-040 CAP,E 22-16 M 11L SME a
MAIN O C 0105 87-010-787-080 C-CAP,U 0.022-25 K B GRM a
MAIN O C 0106 87-010-553-040 CAP,E 47-16 M 5L SRE a
MAIN O C 0108 87-010-194-080 C-CAP,S 0.047-25 Z F a
MAIN O C 0109 87-012-286-080 C-CAP,U 0.01-25 K B GRM a
MAIN O C 0110 87-010-759-080 C-CAP,U 0.1-25 Z F CM/CB a
MAIN O C 0111 87-012-286-080 C-CAP,U 0.01-25 K B GRM a
MAIN O C 0113 87-010-759-080 C-CAP,U 0.1-25 Z F CM/CB a
MAIN O C 0114 87-010-787-080 C-CAP,U 0.022-25 K B GRM a
MAIN O C 0115 87-012-286-080 C-CAP,U 0.01-25 K B GRM a
MAIN O C 0116 87-010-495-040 CAP,E 2.2-50 M 5L SRE a
MAIN O C 0117 87-012-282-080 C-CAP,U 4700P-50 K B GRM a
MAIN O C 0118 87-010-067-040 CAP,E 0.1-50 M 5L SRE a
MAIN O C 0119 87-012-286-080 C-CAP,U 0.01-25 K B GRM a
MAIN O C 0121 87-010-786-080 C-CAP,U 0.018-25 K B GRM a
MAIN O C 0122 87-010-786-080 C-CAP,U 0.018-25 K B GRM a

! = ! 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 - 2/6
CT-R402
YZSL
MAIN O C 0123 87-016-526-080 C-CAP,S 0.47-16 BK a
MAIN O C 0124 87-016-526-080 C-CAP,S 0.47-16 BK a
MAIN O C 0151 87-012-183-080 C-CAP,U 30P-50 J CH GRM a
MAIN O C 0152 87-012-182-080 C-CAP,U 27P-50 J CH GRM a
MAIN O C 0153 87-010-495-040 CAP,E 2.2-50 M 5L SRE a
MAIN O C 0154 87-012-336-080 C-CAP,U 330P-50 J SL GRM a
MAIN O C 0155 87-012-271-080 C-CAP,U 560P-50 K B GRM a
MAIN O C 0156 87-010-759-080 C-CAP,U 0.1-25 Z F CM/CB a
MAIN O C 0201 87-012-274-080 C-CAP,U 1000P-50 K B GRM a
MAIN O C 0202 87-012-274-080 C-CAP,U 1000P-50 K B GRM a
MAIN O C 0203 87-010-498-040 CAP,E 10-16 M 5L SRE a
MAIN O C 0204 87-010-498-040 CAP,E 10-16 M 5L SRE a
MAIN O C 0205 87-010-263-040 CAP,E 100-10 M 11L SME a
MAIN O C 0206 87-010-263-040 CAP,E 100-10 M 11L SME a
MAIN O C 0207 87-010-787-080 C-CAP,U 0.022-25 K B GRM a
MAIN O C 0208 87-010-787-080 C-CAP,U 0.022-25 K B GRM a
MAIN O C 0209 87-010-494-040 CAP,E 1-50 M 5L SRE a
MAIN O C 0210 87-010-494-040 CAP,E 1-50 M 5L SRE a
MAIN O C 0211 87-010-263-040 CAP,E 100-10 M 11L SME a
MAIN O C 0212 87-010-759-080 C-CAP,U 0.1-25 Z F CM/CB a
CT-R402
YZSL
MAIN O C 0213 87-010-380-040 CAP,E 47-16 M 11L SME a
MAIN O C 0401 87-010-494-040 CAP,E 1-50 M 5L SRE a
MAIN O C 0402 87-010-494-040 CAP,E 1-50 M 5L SRE a
MAIN O C 0403 87-010-805-080 C-CAP,S 1-16 Z F GRM a
MAIN O C 0404 87-010-805-080 C-CAP,S 1-16 Z F GRM a
MAIN O C 0405 87-012-280-080 C-CAP,U 3300P-50 K B GRM a
MAIN O C 0406 87-012-280-080 C-CAP,U 3300P-50 K B GRM a
MAIN O C 0407 87-010-787-080 C-CAP,U 0.022-25 K B GRM a
MAIN O C 0408 87-010-787-080 C-CAP,U 0.022-25 K B GRM a
MAIN O C 0409 87-010-498-040 CAP,E 10-16 M 5L SRE a
MAIN O C 0410 87-010-498-040 CAP,E 10-16 M 5L SRE a
MAIN O C 0411 87-A10-781-080 C-CAP,U 0.15-10 K B a
MAIN O C 0412 87-A10-781-080 C-CAP,U 0.15-10 K B a
MAIN O C 0413 87-A10-781-080 C-CAP,U 0.15-10 K B a
MAIN O C 0414 87-A10-781-080 C-CAP,U 0.15-10 K B a
MAIN O C 0415 87-010-498-040 CAP,E 10-16 M 5L SRE a
MAIN O C 0416 87-010-498-040 CAP,E 10-16 M 5L SRE a
MAIN O C 0417 87-010-497-040 CAP,E 4.7-35 M 5L SRE a
MAIN O C 0418 87-010-404-040 CAP,E 4.7-50 M 11L SME a
MAIN O C 0419 87-010-404-040 CAP,E 4.7-50 M 11L SME a
CT-R402
YZSL
MAIN O C 0420 87-010-497-040 CAP,E 4.7-35 M 5L SRE a
MAIN O C 0423 87-010-787-080 C-CAP,U 0.022-25 K B GRM a
MAIN O C 0424 87-010-555-040 CAP,E 100-10 M 5L SRE a
MAIN O C 0425 87-010-759-080 C-CAP,U 0.1-25 Z F CM/CB a
MAIN O C 0426 87-010-379-040 CAP,E 22-16 M 11L SME a
MAIN O C 0427 87-010-759-080 C-CAP,U 0.1-25 Z F CM/CB a
MAIN O C 0428 87-010-759-080 C-CAP,U 0.1-25 Z F CM/CB a
MAIN O C 0429 87-010-759-080 C-CAP,U 0.1-25 Z F CM/CB a
MAIN O C 0430 87-012-286-080 C-CAP,U 0.01-25 K B GRM a
MAIN O C 0431 87-010-494-040 CAP,E 1-50 M 5L SRE a
MAIN O C 0501 87-016-526-080 C-CAP,S 0.47-16 BK a
MAIN O C 0502 87-016-526-080 C-CAP,S 0.47-16 BK a
MAIN O C 0503 87-016-526-080 C-CAP,S 0.47-16 BK a
MAIN O C 0504 87-016-526-080 C-CAP,S 0.47-16 BK a
MAIN O C 0505 87-012-273-080 C-CAP,U 820P-50 K B GRM a
MAIN O C 0506 87-012-273-080 C-CAP,U 820P-50 K B GRM a
MAIN O C 0507 87-012-273-080 C-CAP,U 820P-50 K B GRM a
MAIN O C 0508 87-012-273-080 C-CAP,U 820P-50 K B GRM a
MAIN O C 0509 87-010-378-040 CAP,E 10-16 M 11L SME a
MAIN O C 0510 87-010-379-040 CAP,E 22-16 M 11L SME a
CT-R402
YZSL
MAIN O C 0511 87-010-544-040 CAP,E 0.1-50 M 11L SME a
MAIN O C 0512 87-010-759-080 C-CAP,U 0.1-25 Z F CM/CB a
MAIN O C 0513 8A-KC7-623-000 CAP,E 2200-16 125 BT a
MAIN O C 0514 87-012-278-080 C-CAP,U 2200P-50 K B GRM a
MAIN O C 0701 87-010-494-040 CAP,E 1-50 M 5L SRE a
MAIN O C 0702 87-010-494-040 CAP,E 1-50 M 5L SRE a
MAIN O C 0703 87-012-274-080 C-CAP,U 1000P-50 K B GRM a
MAIN O C 0704 87-012-274-080 C-CAP,U 1000P-50 K B GRM a
MAIN O C 0705 87-012-286-080 C-CAP,U 0.01-25 K B GRM a
MAIN O C 0706 87-012-286-080 C-CAP,U 0.01-25 K B GRM a
MAIN O C 0801 87-010-759-080 C-CAP,U 0.1-25 Z F CM/CB a
MAIN O C 0802 87-012-278-080 C-CAP,U 2200P-50 K B GRM a
MAIN O C 0803 87-010-759-080 C-CAP,U 0.1-25 Z F CM/CB a
MAIN O C 0804 87-010-935-040 CAP,E 220-16 M VR a
MAIN O C 0805 87-010-380-040 CAP,E 47-16 M 11L SME a
MAIN O C 0806 87-010-787-080 C-CAP,U 0.022-25 K B GRM a
MAIN O C 0901 87-010-544-040 CAP,E 0.1-50 M 11L SME a
MAIN O C 0902 87-010-787-080 C-CAP,U 0.022-25 K B GRM a
MAIN O C 0903 87-010-555-040 CAP,E 100-10 M 5L SRE a
MAIN O C 0904 87-016-039-090 CAP,DL 0.022F-5.5 Z 70 FM a

! = ! 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
-6-
ELECTRICAL PARTS LIST - 3/6
CT-R402
YZSL
MAIN O C 0907 87-012-172-080 C-CAP,U 10P-50 D CH GRM a
MAIN O C 0908 87-012-172-080 C-CAP,U 10P-50 D CH GRM a
MAIN O C 0909 87-010-759-080 C-CAP,U 0.1-25 Z F CM/CB a
MAIN O C 0910 87-012-274-080 C-CAP,U 1000P-50 K B GRM a
MAIN O C 0911 87-012-286-080 C-CAP,U 0.01-25 K B GRM a
MAIN O C 0914 87-012-195-080 C-CAP,U 100P-50 J CH GRM a
MAIN O C 0915 87-012-195-080 C-CAP,U 100P-50 J CH GRM a
MAIN ! O CN 0201 87-A60-620-010 CONN,3P V 2MM JMT a
MAIN ! O CN 0202 87-099-408-010 CONN,8P V WHT EH a
MAIN O CN 0701 88-KTA-603-010 CONN,15P CAM-B68 a
MAIN O CNA0801 8A-KT1-645-110 CONN ASSY,8P ISO-BLACK-B a
MAIN O CNA0802 8A-KT1-646-110 CONN ASSY,8P ISO-WHITE-B a
MAIN S D 0101 87-020-465-080 DIODE,1SS133 a
MAIN S D 0102 87-020-465-080 DIODE,1SS133 a
MAIN S D 0151 87-070-136-080 ZENER,MTZJ5.1B a
MAIN X D 0401 88-121-101-080 RES,100-1/8W J a
MAIN S D 0402 87-A40-250-040 C-DIODE,DAN217 a
MAIN S D 0403 87-020-465-080 DIODE,1SS133 a
MAIN S D 0501 87-001-783-080 DIODE,1N4002 a
MAIN S D 0502 87-001-783-080 DIODE,1N4002 a
CT-R402
YZSL
MAIN S D 0503 87-001-783-080 DIODE,1N4002 a
MAIN S D 0504 87-001-783-080 DIODE,1N4002 a
MAIN S D 0505 87-001-783-080 DIODE,1N4002 a
MAIN S D 0506 87-001-783-080 DIODE,1N4002 a
MAIN S D 0507 87-001-783-080 DIODE,1N4002 a
MAIN S D 0508 87-001-783-080 DIODE,1N4002 a
MAIN S D 0509 87-A40-509-080 ZENER,MTZJ6.8C a
MAIN S D 0510 87-020-331-040 C-DIODE,DAN202K a
MAIN S D 0705 87-020-331-040 C-DIODE,DAN202K a
MAIN S D 0801 87-A40-798-010 DIODE,1N5402 (3A/200V) a
MAIN S D 0802 87-A40-509-080 ZENER,MTZJ6.8C a
MAIN S D 0803 87-070-334-080 ZENER,MTZJ10B a
MAIN S D 0804 87-070-136-080 ZENER,MTZJ5.1B a
MAIN S D 0806 87-A40-620-080 ZENER,MTZJ6.2A a
MAIN S D 0807 87-A40-509-080 ZENER,MTZJ6.8C a
MAIN S D 0808 87-020-465-080 DIODE,1SS133 a
MAIN S D 0902 87-070-136-080 ZENER,MTZJ5.1B a
MAIN S D 0906 87-020-465-080 DIODE,1SS133 a
MAIN S F 0801 8B-KC1-621-010 FUSE,15A 32V a
MAIN S IC 0151 88-KT1-607-080 C-IC,SAA6579T a
CT-R402
YZSL
MAIN S IC 0201 87-027-539-010 IC,LA3161 a
MAIN S IC 0401 8Z-KT1-622-010 C-IC,LC75374E a
MAIN S IC 0501 87-A22-246-010 IC,TA8252H a
MAIN S IC 0901 8C-KTA-611-030 C-IC,UPD178078GF-565-3BA a
MAIN O JW 0165 87-A11-144-080 CAP,TC U 0.1-50 K B a
MAIN X JW 0231 88-121-102-080 RES,1K-1/8W J a
MAIN O L 0101 87-003-143-080 COIL,4.7UH K LAL02 a
MAIN O L 0102 8Z-KT1-619-010 COIL,68MH K7-D a
MAIN O L 0701 87-003-143-080 COIL,4.7UH K LAL02 a
MAIN O L 0801 8B-KCF-615-010 FLTR,AMORPHOUS -CHOKE a
MAIN O L 0901 87-003-149-080 COIL,47UH J LAL02 a
MAIN S Q 0101 87-A30-427-040 C-TR,DTC114EKA a
MAIN S Q 0102 87-A30-289-040 C-TR,2SA1037AK(Q) a
MAIN S Q 0103 89-324-122-040 C-TR,2SC2412KR a
MAIN S Q 0105 89-324-122-040 C-TR,2SC2412KR a
MAIN S Q 0106 89-324-122-040 C-TR,2SC2412KR a
MAIN S Q 0107 89-324-122-040 C-TR,2SC2412KR a
MAIN S Q 0108 89-324-122-040 C-TR,2SC2412KR a
MAIN S Q 0201 87-A30-689-080 TR,DTB123YS a
MAIN S Q 0202 87-A30-427-040 C-TR,DTC114EKA a
CT-R402
YZSL
MAIN S Q 0403 89-324-122-040 C-TR,2SC2412KR a
MAIN S Q 0404 87-A30-287-040 C-TR,DTC114TKA a
MAIN S Q 0405 87-A30-287-040 C-TR,DTC114TKA a
MAIN S Q 0406 87-A30-287-040 C-TR,DTC114TKA a
MAIN S Q 0407 87-A30-287-040 C-TR,DTC114TKA a
MAIN S Q 0408 87-A30-282-040 C-TR,DTA114TKA a
MAIN S Q 0410 87-A30-287-040 C-TR,DTC114TKA a
MAIN S Q 0501 87-A30-282-040 C-TR,DTA114TKA a
MAIN S Q 0801 89-213-750-010 TR,2SB1375 a
MAIN S Q 0802 87-A30-427-040 C-TR,DTC114EKA a
MAIN S Q 0803 89-420-120-010 TR,2SD2012 a
MAIN O Q 0804 89-418-580-080 TR,2SD1858TV2 a
MAIN S Q 0807 87-A30-427-040 C-TR,DTC114EKA a
MAIN S Q 0808 87-A30-455-040 C-TR,DTA144EKA a
MAIN X R 0101 88-121-105-080 RES,1M-1/8W J a
MAIN X R 0102 88-121-102-080 RES,1K-1/8W J a
MAIN X R 0103 88-121-181-080 RES,180-1/8W J a
MAIN X R 0104 88-121-100-080 RES,10-1/8W J a
MAIN O R 0105 88-108-473-080 C-RES,U 47K-1/16W J a
MAIN X R 0106 88-108-333-080 C-RES,U 33K-1/16W J a

! = ! 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
-7-
ELECTRICAL PARTS LIST - 4/6
CT-R402
YZSL
MAIN O R 0107 88-108-473-080 C-RES,U 47K-1/16W J a
MAIN O R 0108 88-108-103-080 C-RES,U 10K-1/16W J a
MAIN X R 0109 88-108-222-080 C-RES,U 2.2K-1/16W J a
MAIN X R 0110 88-118-330-080 C-RES,S 33-1/10W J a
MAIN X R 0111 88-118-100-080 C-RES,S 10-1/10W J a
MAIN X R 0112 88-108-821-080 C-RES,U 820-1/16W J a
MAIN X R 0113 88-108-000-080 C-JUMPER,U a
MAIN O R 0114 88-108-103-080 C-RES,U 10K-1/16W J a
MAIN O R 0115 88-108-103-080 C-RES,U 10K-1/16W J a
MAIN X R 0116 88-121-102-080 RES,1K-1/8W J a
MAIN O R 0118 88-108-102-080 C-RES,U 1K-1/16W J a
MAIN X R 0119 88-108-472-080 C-RES,U 4.7K-1/16W J a
MAIN X R 0121 88-121-682-080 RES,6.8K-1/8W J a
MAIN X R 0122 88-121-682-080 RES,6.8K-1/8W J a
MAIN O R 0123 88-108-473-080 C-RES,U 47K-1/16W J a
MAIN X R 0124 88-108-104-080 C-RES,U 100K-1/16W J a
MAIN X R 0151 88-108-222-080 C-RES,U 2.2K-1/16W J a
MAIN X R 0152 88-121-331-080 RES,330-1/8W J a
MAIN O R 0201 88-108-224-080 C-RES,U 220K-1/16W J a
MAIN O R 0202 88-108-224-080 C-RES,U 220K-1/16W J a
CT-R402
YZSL
MAIN X R 0203 88-108-390-080 C-RES,U 39-1/16W J a
MAIN X R 0204 88-108-390-080 C-RES,U 39-1/16W J a
MAIN O R 0205 88-108-562-080 C-RES,U 5.6K-1/16W J a
MAIN O R 0206 88-108-562-080 C-RES,U 5.6K-1/16W J a
MAIN X R 0207 88-108-154-080 C-RES,U 150K-1/16W J a
MAIN X R 0208 88-108-154-080 C-RES,U 150K-1/16W J a
MAIN O R 0209 88-108-102-080 C-RES,U 1K-1/16W J a
MAIN O R 0210 88-108-102-080 C-RES,U 1K-1/16W J a
MAIN X R 0211 88-121-470-080 RES,47-1/8W J a
MAIN X R 0212 88-121-472-080 RES,4.7K-1/8W J a
MAIN X R 0213 88-121-472-080 RES,4.7K-1/8W J a
MAIN X R 0214 88-121-102-080 RES,1K-1/8W J a
MAIN X R 0215 88-121-473-080 RES,47K-1/8W J a
MAIN X R 0216 88-121-473-080 RES,47K-1/8W J a
MAIN X R 0217 88-108-104-080 C-RES,U 100K-1/16W J a
MAIN O R 0401 88-108-332-080 C-RES,U 3.3K-1/16W J a
MAIN O R 0402 88-108-332-080 C-RES,U 3.3K-1/16W J a
MAIN O R 0403 88-108-332-080 C-RES,U 3.3K-1/16W J a
MAIN O R 0404 88-108-332-080 C-RES,U 3.3K-1/16W J a
MAIN O R 0405 88-108-102-080 C-RES,U 1K-1/16W J a
CT-R402
YZSL
MAIN X R 0406 88-121-102-080 RES,1K-1/8W J a
MAIN O R 0407 88-108-102-080 C-RES,U 1K-1/16W J a
MAIN X R 0408 88-121-102-080 RES,1K-1/8W J a
MAIN X R 0415 88-121-102-080 RES,1K-1/8W J a
MAIN X R 0416 88-121-102-080 RES,1K-1/8W J a
MAIN X R 0417 88-121-102-080 RES,1K-1/8W J a
MAIN X R 0418 88-121-102-080 RES,1K-1/8W J a
MAIN X R 0419 88-108-104-080 C-RES,U 100K-1/16W J a
MAIN X R 0420 88-108-104-080 C-RES,U 100K-1/16W J a
MAIN X R 0421 88-121-472-080 RES,4.7K-1/8W J a
MAIN X R 0422 88-108-105-080 C-RES,U 1M-1/16W J a
MAIN O R 0423 88-108-102-080 C-RES,U 1K-1/16W J a
MAIN X R 0424 88-121-103-080 RES,10K-1/8W J a
MAIN X R 0425 88-108-105-080 C-RES,U 1M-1/16W J a
MAIN X R 0426 88-121-102-080 RES,1K-1/8W J a
MAIN X R 0427 88-121-102-080 RES,1K-1/8W J a
MAIN X R 0428 88-121-102-080 RES,1K-1/8W J a
MAIN X R 0429 88-121-222-080 RES,2.2K-1/8W J a
MAIN X R 0430 88-121-103-080 RES,10K-1/8W J a
MAIN X R 0432 88-108-000-080 C-JUMPER,U a
CT-R402
YZSL
MAIN X R 0501 88-121-123-080 RES,12K-1/8W J a
MAIN X R 0502 88-121-123-080 RES,12K-1/8W J a
MAIN X R 0503 88-121-123-080 RES,12K-1/8W J a
MAIN X R 0504 88-121-123-080 RES,12K-1/8W J a
MAIN X R 0505 88-108-183-080 C-RES,U 18K-1/16W J a
MAIN X R 0506 88-108-183-080 C-RES,U 18K-1/16W J a
MAIN X R 0507 88-108-183-080 C-RES,U 18K-1/16W J a
MAIN X R 0508 88-108-183-080 C-RES,U 18K-1/16W J a
MAIN X R 0509 88-121-222-080 RES,2.2K-1/8W J a
MAIN X R 0510 88-121-102-080 RES,1K-1/8W J a
MAIN O R 0511 88-108-223-080 C-RES,U 22K-1/16W J a
MAIN X R 0521 88-121-102-080 RES,1K-1/8W J a
MAIN O R 0522 88-108-272-080 C-RES,U 2.7K-1/16W J a
MAIN X R 0523 88-121-104-080 RES,100K-1/8W J a
MAIN X R 0524 88-121-104-080 RES,100K-1/8W J a
MAIN X R 0525 88-121-104-080 RES,100K-1/8W J a
MAIN X R 0526 88-121-104-080 RES,100K-1/8W J a
MAIN X R 0701 88-121-472-080 RES,4.7K-1/8W J a
MAIN X R 0702 88-121-472-080 RES,4.7K-1/8W J a
MAIN O R 0703 88-108-562-080 C-RES,U 5.6K-1/16W J a

! = ! 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
-8-
ELECTRICAL PARTS LIST - 5/6
CT-R402
YZSL
MAIN O R 0704 88-108-562-080 C-RES,U 5.6K-1/16W J a
MAIN X R 0705 88-121-102-080 RES,1K-1/8W J a
MAIN X R 0706 88-121-102-080 RES,1K-1/8W J a
MAIN X R 0707 88-121-102-080 RES,1K-1/8W J a
MAIN X R 0708 88-121-102-080 RES,1K-1/8W J a
MAIN X R 0709 88-121-102-080 RES,1K-1/8W J a
MAIN O R 0710 88-108-103-080 C-RES,U 10K-1/16W J a
MAIN O R 0711 88-108-103-080 C-RES,U 10K-1/16W J a
MAIN X R 0712 88-108-104-080 C-RES,U 100K-1/16W J a
MAIN O R 0801 88-108-223-080 C-RES,U 22K-1/16W J a
MAIN X R 0802 88-140-229-080 RES,2.2-1/2W J a
MAIN X R 0803 88-121-103-080 RES,10K-1/8W J a
MAIN X R 0804 88-140-681-080 RES,680-1/2W J a
MAIN X R 0805 88-140-229-080 RES,2.2-1/2W J a
MAIN X R 0806 88-121-471-080 RES,470-1/8W J a
MAIN X R 0807 88-121-104-080 RES,100K-1/8W J a
MAIN X R 0808 88-121-680-080 RES,68-1/8W J a
MAIN X R 0809 88-121-272-080 RES,2.7K-1/8W J a
MAIN X R 0902 88-121-104-080 RES,100K-1/8W J a
MAIN X R 0903 88-121-473-080 RES,47K-1/8W J a
CT-R402
YZSL
MAIN X R 0904 88-108-000-080 C-JUMPER,U a
MAIN X R 0905 88-121-102-080 RES,1K-1/8W J a
MAIN X R 0906 88-121-102-080 RES,1K-1/8W J a
MAIN X R 0908 88-108-104-080 C-RES,U 100K-1/16W J a
MAIN X R 0909 88-108-104-080 C-RES,U 100K-1/16W J a
MAIN X R 0910 88-108-104-080 C-RES,U 100K-1/16W J a
MAIN X R 0912 88-121-473-080 RES,47K-1/8W J a
MAIN X R 0913 88-121-473-080 RES,47K-1/8W J a
MAIN X R 0914 88-121-473-080 RES,47K-1/8W J a
MAIN X R 0915 88-121-222-080 RES,2.2K-1/8W J a
MAIN X R 0916 88-121-104-080 RES,100K-1/8W J a
MAIN X R 0917 88-121-104-080 RES,100K-1/8W J a
MAIN O R 0920 88-108-473-080 C-RES,U 47K-1/16W J a
MAIN X R 0921 88-121-222-080 RES,2.2K-1/8W J a
MAIN X R 0922 88-121-222-080 RES,2.2K-1/8W J a
MAIN X R 0923 88-121-222-080 RES,2.2K-1/8W J a
MAIN X R 0924 88-121-222-080 RES,2.2K-1/8W J a
MAIN X R 0925 88-108-104-080 C-RES,U 100K-1/16W J a
MAIN X R 0926 88-108-104-080 C-RES,U 100K-1/16W J a
MAIN X R 0927 88-108-104-080 C-RES,U 100K-1/16W J a
CT-R402
YZSL
MAIN X R 0928 88-108-104-080 C-RES,U 100K-1/16W J a
MAIN X R 0929 88-108-104-080 C-RES,U 100K-1/16W J a
MAIN X R 0930 88-108-104-080 C-RES,U 100K-1/16W J a
MAIN O R 0933 88-108-223-080 C-RES,U 22K-1/16W J a
MAIN O R 0936 88-108-473-080 C-RES,U 47K-1/16W J a
MAIN O SFR0101 87-024-438-080 SFR,220K H RH063MC a
MAIN O SW 0901 87-A91-070-010 SW,TACT SKHHLV a
MAIN O TU 0101 8C-KTA-621-010 TU UNIT, FAE347-E30 a
MAIN X W 0101 8Z-KC1-614-010 WIRE,ANT a
MAIN X W 0801 8A-KCG-615-010 WIRE,400 P-MUTE a
MAIN O X 0151 87-A70-091-010 VIB,XTAL 4.332MHZ CSA-309 a
MAIN O X 0901 87-A70-372-080 VIB,XTAL 6.3MHZ HC-49/U-S a

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
• Regarding connectors, they are not stocked as they are not the initial order items.
The connectors are available after they are supplied from connector manufacturers upon the order is received.
-9-
ELECTRICAL PARTS LIST - 6/6

-10-
TRANSISTOR ILLUSTRATION -1/1
ECBE
E
EC
C
C
B
B
B
2SD1858TV2 2SB1375
2SD2012 DTB123YS 2SA1037AK(Q)
2SC2412KR
DTA114TKA
DTA144EKA
DTC114EKA
DTC114TKA

-11-
SCHEMATIC DIAGRAM - 1/2 (MAIN/HEAD SECTION)
JW165
100/10
100
1.0
JW231
1K
D804
MTZJ5.1B
CNA801
CNA802
100K
C703 1000P C704 1000P
MAIN C.B
HEAD C.B

WIRING - 1/2 (MAIN C.B/HEAD C.B)
-12-
R124
R706
R151
R152
C154
C154 C151
JW
X151
C156
C155
D151
C119
R123 C117
C703
C118
R905
R118
JR103
JW165
IC151
SFR 101
CNA802
CNA802
CNA801
CNA801
R916
R917
D804
C704
Q107 Q108
MAIN C.B
HEAD C.B
101112131415161718192021222324
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
1234567892526272829303132

-13-
SCHEMATIC DIAGRAM - 2/2 (FRONT/AUX SECTION)
FRONT C.B AUX C.B
TA
AF
SLI-343YY3F YEL
SML-012YT YEL
SML-012YT YEL
SML-012YT YEL
470
470
470

WIRING - 2/2 (FRONT C.B/AUX C.B)
-14-
(COMPONENT SIDE)
(CODUCTOR SIDE)
AF
FRONT C.B AUX C.B
FRONT C.B
123456789101112131415
J
I
H
G
F
E
D
C
B
A
A
B
C
D
E
F
G
H
I
J
123456789101112131415
161718192021 161718192021 2223242526272829303132 2223242526272829303132

-15-
LCD DISPLAY -1/2 <CKT-10/15>
SEGMENTWIRING
CHARACTERNAME
COMMONWIRING

-16-
WIRINGTABLE
LCD DISPLAY -2/2 <CKT-10/15>

-17-
IC BLOCK DIAGRAM -1/5
IC, LC75854W
IC, TA8252H IC, LA3161
TEST
OSC
D0
D1
CL
CE
VDD
VDD1
VDD2
VS5
K15
K14 K13
K12
K11
KS6
KS5 KS4
KS3
KS2/S41
KS1/S40
S39~S1
COM1 COM2
COM3
COM4
IN1
IN2
Aux IN
IN3
IN4
PRE-GND
RIP
STBY
CLIP OUT &DIAGNOSIS
MUTE
OUT1(+)
GND1
OUT1(-)
OUT2(+)
GND2
OUT2(-)
OUT3(+)
GND3
OUT3(-)
OUT4(+)
GND4
OUT4(-)
TAB
VCC1
VCC2
VCC
INPUT
IF
INPUT
NF
GND
OUTPUT
OUTPUT

-18-
IC BLOCK DIAGRAM -2/2
IC, SAA6579T
IC, LC75374E
MUX ANTI-
ALIASING
FILTER
57 kHz
BANDPASS
(8th ORDER)
OSCILLATOR
AND
DIVIDER
BIPHASE
SYMBOL
DECODER
COSTAS LOOP
VARIABLE AND
FIXED DIVIDER
CLOCK
REGENERATION
AND SYNC
QUALITY BIT
GENERATOR
DIFFERENTIAL
DECODER
TEST LOGIC AND OUTPUT
SELECTOR SWITCH
RECONSTRUCTION
FILTER
CLOCKED
COMPARATOR
REFERENCE
VOLTAGE
SCOUT
4
8
7
5
3
6 9
2
1
10 11
15
16
1214
13
CIN
DDA
REF
SSA MODE TEST SSD
T57
RDCL
RDDA
QUAL
V
DDD
OSCOOSCI V
Vp1
V
V
V

-19-
IC DESCRIPTION -1/2 (µPD178078GF-565-3BA) -1/3
Pin No. Pin Name I/O Description
1 BATT IN I BATT ON/OFF input.
2 DFP IN I Detects whether DFP (front panel) is provided or not.
3 LCD DI I LCD driver data input.
4 LCD DO O LCD driver data output. Open when not used.
5 LCD CLO O LCD driver clock output.
6 LCD CE O LCD driver chip enable output.
7 BBE 1 O BBE select output. Open when not used. (Not used)
8 CDS DI – Connected to pull-down resistor.
9 CDS DO – Not used.
10 CDS CLO – Not used.
11 CD DI I Data input from CD changer. Pulled down when not used.
12 CD DO O Data output to CD changer. Open when not used.
13 CD CLI I Clock input from CD changer. Open when not used.
14 CD DISP SEL O Determines the timing with which data is transferred to the head unit. Open when not used.
15 CD CONNECT I CD changer connection check. Pulled down when not used.
16 BBE 2 O BBE select output. Open when not used. (Not used)
17 CD CLO O Clock output to CD changer. Open when not used.
18 EVOL CLO O Clock output to electronic VR.
19 EVOL DO O Data output to electronic VR.
20 EVOL CE O Chip enable output to electronic VR.
21 LOC/DX O LOC/DX switching output during radio seek. (LOC: "H", DX: "L"). Open when not used.
22 DSSA CONT O Outputs "H" only when DSSA L/R are operating.
23 NC – Not connected.
24 PHONE MUTE I Muting control input -20dB. Mute: "L". Connected to pull-up resistor.
25 LEVEL IND I Level meter signal input.
26 AUTO VOL I Detects microphone input for auto volume operation. Pulled down when not used. (Not used)
27 AVDD – Power supply.
28 TEST – Only used in CD model. (Not used)
29, 30 NC – Not connected.
31 FM/AM S METER I AF signal input during RDS AF operation and FM S meter signal input.
32 AVSS – Ground.
33 REG CPU – CPU power regulator.
34 VDD – Power supply for port.
35 REG OSC – Regulator for oscillator circuit. (Connected to VDD)
36 X2 O System clock oscillator. (6.3MHz)
37 X1 I System clock oscillator. (6.3MHz)
38 GND – Ground for port.
39 IF REQ O Output to request IF count signal.
40 GND – Ground.
41 AM IF I AM IF count signal input.
42 FM IF I FM IF count signal input.
43 VDD PLL – Power supply for PLL.

-20-
Pin No. Pin Name I/O Description
44 FM OSC I FM local oscillation input.
45 AM OSC I AM local oscillation input.
46 GND PLL –Ground for PLL.
47 EO O O Error output from charge pump (for FM).
48 EO I O Error output from charge pump (for AM).
49 IC –Connected to pull-down resistor.
50 RESET I System reset input.
51 RDS CLK IN I RDS clock input. Pulled down when not used. (Not used)
52 ACC IN I ACC (accessory power supply) ON/OFF input.
53 RMT IN I Remote control input. Pulled up when not used. (Connected to GND)
54 ST-IND/SD IN I Stop pulse input during FM/AM seek.
55 NC –Not connected.
56 ST-BY MUTE O Standby/muting output to power amplifier.
57 POWER CONT O Unit power control output.
58 RDS DI I RDS data input. Pulled down when not used. (Not used)
59 BEEP O BEEP output. (3kHz, 50ms)
60, 61 NC –Not connected.
62 BAND CONT O AM/FM power switching output. AM: "H", FM: "L".
63 CD ACC CONT O Transmits the power ON/OFF status of head unit to changer. Open when not used.
64 RDS MODE O Outputs "H" during RDS AF operation. Open when not used. (Not used)
65 POWER MUTE O Muting output to power amplifier.
66 LCD CONT 2 O LCD DRV power control 2. (Not used)
67 LCD CONT 1 O LCD DRV power control 1.
68 AF MUTE O Audio muting output.
69, 70 NC –Not connected.
71 ~ 73 MI-1 ~ MI-3 I Diode matrix input for initial setting.
74 MO-1 O Diode matrix output for initial setting. (Not used)
75 MO-2 O Diode matrix output for initial setting. (Open demo)
76 MO-3 O Diode matrix output for initial setting.
77 MO-4 O Diode matrix output for initial setting. (Not used)
78 AUX IN –Connected to pull-up resistor.
79 PACK IN I Tape insertion status detection input.
80 RE1 IN I Rotary encorder input 1.
81 RE2 IN I Rotary encorder input 2.
82 GND –Ground.
83 NC –Not connected.
84 PANCON1 –Not used.
85 PANCON2 –Not used.
86 STAND BY I Mechanism stand-by input.
87 REEL I Reel pulse input for tape mechanism.
88 MAIN M CONT O Main motor control output.
89 FLAP IN –Not used.
IC DESCRIPTION -1/2 (µPD178078GF-565-3BA) -2/3