Aiwa HSRX-837 Schematic

HS-RX837

DAH1

SERVICE MANUAL

STEREO RADIO CASSETTE PLAYER

SPECIFICATIONS

Design and specifications are subject to change without

•

notice. Dolby noise reduction manufactured under license from

•

Dolby Laboratories Licensing Corporation. “DOLBY” and the double-D symbol of Dolby Laboratories Licensing Corporation.

BASIC TAPE MECHANISM : 6ZM-2P6

are trademarks

S/M Code No. 09-986-269-8O2

DATA

DISASSEMBLY INSTRUCTIONS

1. “REAR, CABINET” Removal

1) Remove the battery lid. (1)

2) Remove the four screws.

3) Insert tweezers or like into the gap of the battery insertion slot as shown, and remove the hook.

4) Remove the cabinet assembly in the direction of the arrow (2).

Screws

CABI ASSY , REAR

Screws

LID, BATT

Hook

2. “MAIN BOARD” Removal

1) Remove three screws A.

2) Remove the two screws B, and remove the headphones jack.

3) Remove soldering of the motor terminal. (1)

4) Remove soldering of the battery terminal (-) (2).

B Screws B Screws

Tweezers

A Screws

MAIN board

CAUTION WHEN SERVICING

The motor terminals are directly soldered to C.B. (Printed Circuit Board) so that the unit cannot be checked of its operations when the MAIN C.B. is opened during repair. In order to check operations of the unit with the MAIN C.B. opened, use the jig (for 6ZM-2).

Part name: JIG KIT 6ZM-2 Part No.: SV-J00-016-010

1) How to assemble the jig Assemble the jig referring to Fig-1.

1 Separate the supplied two 6P flat cables, and fabricate the one 3P wire, the two 2P wires and the one 1P wire. 2 Attach the photo sensor to the jig C.B. by soldering.

(Refer to Fig-1 and indication on the jig C.B. for the direction of attaching the photo sensor.)

3 Attach the outside terminal of the timing switch to the jig C.B. with soldering.

(At this time, do not solder the timing switch to the motor terminal land.)

4 Connect the other terminal of the timing switch to the GND terminal of the jig C.B. using a wire. 5 Connect the wire that are separated in step 1 by soldering, to the jig C.B. as shown in Fig-1.

2) How to attach the jig Attach the jig referring to Fig-2.

1 Fix the jig C.B. to the mechanism using the MAIN C.B. fixing screws. 2 Solder the motor terminal. 3 Connect the wire A of the jig C.B. to the motor terminal of the MAIN C.B. by soldering. (Refer to Fig-3.) 4 Connect the sire B of the jig C.B. to the timing switch terminal of the MAIN C.B. by soldering. (Refer to Fig-3.) 5 Connect the wire C of the jig C.B. to (+) and (-) terminals of battery by soldering. (Refer to Fig-3.) 6 Connect the wire D of the jig C.B. to photo sensor of the MAIN C.B. by soldering. (Refer to Fig-3.)

3) How to use the jig When the C.B.s (printed circuit boards) are opened, the respective switches on the C.B.s are located on the rear side. Perform all operations from a remote controller in order to increase the work efficiently as follows.

1 Connect a remote controller. 2 Short circuit the cassette switch terminals with wires or the like.

Fig-2

Fig-1

Fig-3

ELECTRICAL MAIN PARTS LIST

REF. NO PART NO. KANRI DESCRIPTION

IC 87-A20-441-010 C-IC,BA3632K

87-A20-745-040 C-IC,TA2030FN 87-A20-076-040 C-IC,TA2022AFN 87-A20-124-080 IC, TK11823 87-002-406-040 C-IC,TPIC326ADB

87-A20-818-040 C-IC,NJM2185AV 87-A20-880-010 C-IC,TC9327F-013 87-A20-755-080 C-IC,AK93C45AF 87-A20-757-040 C-IC,S-80815ANNP-EDC-T2 87-A20-902-040 C-IC,S-80809ANNP-E7Z-T2

87-A20-603-040 C-IC,RN5RK241A

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

87-026-352-080 CHIP-TR,DTC144TU 87-026-476-080 TR,RN1610 87-026-349-080 CHIP TRANSISTOR DTC143TU 89-113-625-080 TR,2SA1362GR(120MHZ,0.

87-026-648-080 C-TR,UPA608T 87-026-467-080 TR,HN1C01F (0.3W) 87-026-597-080 C-TR,UMH3 87-026-480-080 TR,RN4605 (0.3W) 89-341-165-080 CHIP TRANSISTOR 2SC4116GR

87-026-534-080 C-TR,RN4905 89-342-153-080 TR,2SC4215 89-508-814-080 C-FET 2SK881 Y 87-026-417-080 TR,RN1310 87-026-425-080 C-TR,RN2307

87-026-428-080 TR,RN2310 (0.1W) 89-342-132-080 TR,2SC4213 87-026-481-080 TR,RN4607 (0.3W)

DIODE 87-001-166-080 DIODE,1SS301

87-001-553-080 C-DIODE 1SS322

MAIN C.B BPF201 81-HW1-628-080 CHIP BAND PASE FILTER

C100 87-010-853-080 C-CAP,220-4V H5.5 C101 87-012-272-080 C-CAP,U 680P-50 B C102 87-012-272-080 C-CAP,U 680P-50 B C103 87-012-272-080 C-CAP,U 680P-50 B

C104 87-012-272-080 C-CAP,U 680P-50 B C105 87-016-117-080 C-CAP,U 0.018-25 J B C106 87-016-117-080 C-CAP,U 0.018-25 J B C107 87-016-296-080 C-CAP,TN 22-4SV(A) C108 87-016-296-080 C-CAP,TN 22-4SV(A)

C109 87-010-828-080 CHIP CAPACITOR,U 0.033-25F C110 87-010-828-080 CHIP CAPACITOR,U 0.033-25F C111 87-A10-262-080 C-CAP,U 1-10 ZF C112 87-A10-262-080 C-CAP,U 1-10 ZF C113 87-016-462-080 C-CAP,S 1-16 F

C114 87-016-462-080 C-CAP,S 1-16 F C115 87-012-272-080 C-CAP,U 680P-50 B C116 87-012-272-080 C-CAP,U 680P-50 B C117 87-A10-262-080 C-CAP,U 1-10 ZF C118 87-A10-262-080 C-CAP,U 1-10 ZF

C119 87-A10-263-080 C-CAP,U 0.1-16ZF C120 87-A10-263-080 C-CAP,U 0.1-16ZF C121 87-010-674-080 CAP, ELECT 220-2 C122 87-010-674-080 CAP, ELECT 220-2 C123 87-010-851-080 C-CAP,47-4

C124 87-A10-262-080 C-CAP,U 1-10 ZF C125 87-016-296-080 C-CAP,TN 22-4SV(A) C126 87-010-829-080 CAP, U 0.047-16

NO.

REF. NO PART NO. KANRI DESCRIPTION

C127 87-A10-353-080 C-CAP,U0.22-10KB C128 87-010-424-080 CAPACTOR,TANTAL 4.7-4 C129 87-A10-260-080 C-CAP,U 0.1-16 K B C130 87-010-851-080 C-CAP,47-4 C131 87-A10-263-080 C-CAP,U 0.1-16ZF

C132 87-016-317-080 C-CAP,TN 2.2-6.3 C133 87-A10-263-080 C-CAP,U 0.1-16ZF C134 87-010-274-080 C-CAP,TN 3.3-4 C135 87-010-851-080 C-CAP,47-4 C140 87-016-296-080 C-CAP,TN 22-4SV(A)

C141 87-A10-263-080 C-CAP,U 0.1-16ZF C142 87-A10-263-080 C-CAP,U 0.1-16ZF C143 87-012-273-080 C-CAP,U 820P-50 B C144 87-A10-263-080 C-CAP,U 0.1-16ZF C145 87-010-787-080 CAP, U 0.022-25

C146 87-A10-262-080 C-CAP,U 1-10 ZF C147 87-A10-262-080 C-CAP,U 1-10 ZF C150 87-016-462-080 C-CAP,S 1-16 F C151 87-A10-263-080 C-CAP,U 0.1-16ZF C152 87-012-282-080 CAP, U 4700P-50

C153 87-012-282-080 CAP, U 4700P-50 C200 87-A10-262-080 C-CAP,U 1-10 ZF C201 87-010-197-080 CAP, CHIP 0.01 DM C202 87-010-986-080 C-CAP,S 820P-50 J CH C203 87-A10-031-080 C-CAP,U 0.01-25 KB

C204 87-012-155-080 C-CAP 180P-50CH C205 87-A10-031-080 C-CAP,U 0.01-25 KB C206 87-012-168-080 C-CAP,U 6P-50 CH C207 87-012-160-080 C-CAP,U 50P-50 CK C208 87-A10-030-080 C-CAP,U 100P-50 CH

C209 87-012-193-080 C-CAP,U 82P-50 CH C210 87-010-746-080 CAP, TANTAL 10-4 C211 87-012-199-080 CAP 220P C214 87-012-275-080 C-CAP,U 1200P-50 B C215 87-A10-263-080 C-CAP,U 0.1-16ZF

C216 87-A10-031-080 C-CAP,U 0.01-25 KB C251 87-A10-703-080 C-CAP,TN 47-2.5 M A C252 87-A10-031-080 C-CAP,U 0.01-25 KB C254 87-A10-031-080 C-CAP,U 0.01-25 KB C257 87-A10-263-080 C-CAP,U 0.1-16ZF

C258 87-012-282-080 CAP, U 4700P-50 C259 87-012-172-080 CAPACITOR CHIP U 10P CH C260 87-012-140-080 CAP 470P C261 87-012-193-080 C-CAP,U 82P-50 CH C262 87-010-336-080 C-CAP,S 18P-50 UJ

C263 87-010-787-080 CAP, U 0.022-25 C264 87-012-274-080 CHIP CAP,U 1000P-50B C265 87-012-141-080 CHIP-CAPACITOR,0.22-16F C266 87-A10-263-080 C-CAP,U 0.1-16ZF C267 87-A10-264-080 C-CAP,S 0.1-16ZF

C268 87-A10-263-080 C-CAP,U 0.1-16ZF C269 87-010-177-080 C-CAP,S 820P-50 SL C270 87-A10-031-080 C-CAP,U 0.01-25 KB C271 87-A10-703-080 C-CAP,TN 47-2.5 M A C272 87-A10-262-080 C-CAP,U 1-10 ZF

C273 87-010-746-080 CAP, TANTAL 10-4 C274 87-012-274-080 CHIP CAP,U 1000P-50B C275 87-012-282-080 CAP, U 4700P-50 C276 87-012-349-080 C-CAP,S 1000P-50 CH C277 87-010-829-080 CAP, U 0.047-16

C278 87-012-270-080 CAP, U 470P-50 C279 87-A10-031-080 C-CAP,U 0.01-25 KB C280 87-A10-031-080 C-CAP,U 0.01-25 KB C281 87-010-829-080 CAP, U 0.047-16 C282 87-010-829-080 CAP, U 0.047-16

C284 87-012-188-080 C-CAP,U 47P-50 CH C286 87-A10-263-080 C-CAP,U 0.1-16ZF C287 87-010-787-080 CAP, U 0.022-25 C288 87-A10-263-080 C-CAP,U 0.1-16ZF C301 87-010-787-080 CAP, U 0.022-25

NO.

REF. NO PART NO. KANRI DESCRIPTION

C302 87-010-505-080 CA, CHIP TANTALUM 1-16 C304 87-A10-703-080 C-CAP,TN 47-2.5 M A C305 87-010-196-080 CHIP CAPACITOR,0.1-25 C306 87-012-167-080 C-CAP,U 5P-50 CH C307 87-012-169-080 C-CAP,U 7P-50 D CH

C308 87-012-188-080 C-CAP,U 47P-50 CH C309 87-A10-263-080 C-CAP,U 0.1-16ZF C401 87-010-504-080 CAP, CHIP TANTALUM 0.47-25 C402 87-A10-263-080 C-CAP,U 0.1-16ZF C404 87-010-829-080 CAP, U 0.047-16

C405 87-A10-263-080 C-CAP,U 0.1-16ZF C406 87-010-486-080 C-CAP,TN 0.33-50 C407 87-010-829-080 CAP, U 0.047-16 C408 86-HR4-615-080 C-CAP,TN 0.47-25(AW) C409 87-012-358-080 C-CAP,S 0.47-10 F Z

C412 87-010-424-080 CAPACTOR,TANTAL 4.7-4 C501 87-012-274-080 CHIP CAP,U 1000P-50B C502 87-010-746-080 CAP, TANTAL 10-4 C503 87-016-526-080 C-CAP,S 0.47-16 BK C504 87-016-526-080 C-CAP,S 0.47-16 BK

C505 87-A10-353-080 C-CAP,U0.22-10KB C506 87-A10-353-080 C-CAP,U0.22-10KB C601 87-010-829-080 CAP, U 0.047-16 C602 87-A10-031-080 C-CAP,U 0.01-25 KB C603 87-016-296-080 C-CAP,TN 22-4SV(A)

C604 87-A10-263-080 C-CAP,U 0.1-16ZF C605 87-012-176-080 CAP 15P C606 87-012-176-080 CAP 15P C607 87-A10-025-080 C-CAP,U 0.22-16Z F C608 87-A10-263-080 C-CAP,U 0.1-16ZF

C609 87-A10-263-080 C-CAP,U 0.1-16ZF C610 87-A10-263-080 C-CAP,U 0.1-16ZF CF251 87-A90-291-080 C-FLTR,KMFC5132AE-TC CF254 87-A90-456-080 C-FLTR,PFWCC 450J3 J101 85-HK3-605-010 JACK,DIA3.5 ST 5P

L101 87-003-240-080 C-COIL,S 3.3UH L102 87-003-240-080 C-COIL,S 3.3UH L103 87-003-240-080 C-COIL,S 3.3UH L104 87-003-234-080 C-COIL,S,0.22UH L105 87-003-240-080 C-COIL,S 3.3UH

L107 87-003-246-080 C-COIL,33UH L108 87-003-240-080 C-COIL,S 3.3UH L109 87-003-240-080 C-COIL,S 3.3UH L110 87-003-240-080 C-COIL,S 3.3UH L201 81-HJ1-623-080 COIL,FM RF Y(R)

L202 81-HJ1-622-080 COIL,FM OSC Y(R) L203 87-005-564-080 CHIP-COIL S2.2MH L251 88-HR5-605-010 BAR-ANT,MW(C) L252 87-003-247-080 C-COIL,100UH L253 87-005-788-080 C-IFT,AM (450K)

L254 87-003-246-080 C-COIL,33UH L301 87-A50-037-080 C-COIL,D-D 5CDLU L601 87-003-246-080 C-COIL,33UH LCD601 88-HR3-604-010 LCD,AIW4137(8HR-3) LED161 87-A90-278-080 C-LED,SML-210VT RED

NO.

REF. NO PART NO. KANRI DESCRIPTION

PS171 87-A90-440-010 SNSR,PHOTO GP2S24N2 R103 87-022-432-080 C-RES,U 270-1/16W F R104 87-022-432-080 C-RES,U 270-1/16W F R105 87-022-437-080 C-RES,U 430-1/16W F R106 87-022-437-080 C-RES,U 430-1/16W F

R401 87-022-043-080 RESISTOR, 1/8W 8.2K R407 87-022-043-080 RESISTOR, 1/8W 8.2K R501 87-022-252-080 C-RES,U36K-1/16WF R611 87-022-245-080 C-RES U 18K-1/16WF R612 87-022-245-080 C-RES U 18K-1/16WF

R613 87-022-223-080 CHIP RES 2.2K 1/16W F R614 87-022-223-080 CHIP RES 2.2K 1/16W F R615 87-022-223-080 CHIP RES 2.2K 1/16W F R616 87-022-227-080 C-RES,U 3.3K-1/16W F R617 87-022-227-080 C-RES,U 3.3K-1/16W F

S601 87-A90-665-080 C-SW,TACT LS7A2M S602 87-A90-665-080 C-SW,TACT LS7A2M S603 87-A90-665-080 C-SW,TACT LS7A2M S604 87-A90-665-080 C-SW,TACT LS7A2M S605 87-A90-665-080 C-SW,TACT LS7A2M

S606 87-A90-665-080 C-SW,TACT LS7A2M S607 87-A90-665-080 C-SW,TACT LS7A2M S608 87-036-428-180 C-SW,SL 1-1-2 SSQ S609 87-A90-361-010 SW,PUSH SPPB51-H11.3 S610 87-A90-356-110 SW,LEAF 6ZM-2

S611 87-A90-004-080 C-SW,SL1-1-3 MHT(NC) SFR251 87-A90-027-080 C-SFR,22K H CVR-32 SFR401 87-A90-104-080 C-SFR,6.8K H CVR-32 TC202 87-011-192-080 CHIP TRIMER TC251 87-011-189-080 TRIMMER CHIP CTZ-10A

VC201 87-001-708-080 C-DIODE ISV228 VC202 87-001-708-080 C-DIODE ISV228 VC251 87-A40-462-040 C-VARI-CAP,SVC347(S) VR101 87-A90-342-080 C-VR,RTRY 50KCX2 V XV0103 X601 87-A70-064-010 VIB,XTAL 75KHZ VTC-200

D.D C.B C702 87-016-296-080 C-CAP,TN 22-4SV(A)

C703 87-016-563-080 C-CAP,TN 10-10 SV A C704 87-016-462-080 C-CAP,S 1-16 F C705 87-016-296-080 C-CAP,TN 22-4SV(A) L701 87-A50-011-080 C-COIL,47UH LQH3C

L702 87-A50-174-080 C-COIL, 82UH 7004-2 L703 87-003-246-080 C-COIL,33UH

HEAD FLEX C.B PH 88-HK5-602-010 HEAD ASSY 6ZM-2(P5)

NO.

• 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.

CHIP RESISTOR PART CODE

Chip Resistor Part Coding

IC BLOCK DIAGRAM IC, BA3632K IC, TA2022FN

Resistor Code

Chip resistor

Wattage Type Tolerance 1/16W 1005 5% CJ

1/16W 1/10W

1/8W

1608 2125

3216

5% 5%

TRANSISTOR ILLUSTRATION

2SA1362GR 2SC4116GR 2SC4213 2SC4213B 2SC4215

DTC143TU DTC144TU RN1310 RN2307 RN2310

2SC4215O

Symbol

CJ CJ

2SK880Y 2SK881Y

Figure

Value of resistor

Form

HN1C01F HN1C01FGR RN1610 RN4605

Dimensions (mm)

LW t

1.0 0.5 0.35 104

1.6 0.8 0.45 2 1.25 0.45

3.2

1.6

Resistor Code

0.55

RN4607 RN4905 UMH3 UPA608T

: A : A

108 118

128

IC, TPIC326ADB IC, NJM2185AV

LCD DISPLAY

IC, TA2030FN

16 15 14 13 12 11 10 9

TV OSC

MIX

TV RF

1 2 3 4 5 6 7 8

FM RF

BUFF

FM OSC

MODE SW

PW SW

SCHEMATIC DIAGRAM

SIGNAL

: FM : AM/PB

VOLTAGE NO MARK : AM/PB ( ) : FM

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