Kenwood KA-7002 Page 11 Service Manual Download | Manualshive

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SCHEMATIC DIAGRAM

BOTTOM VIEW OF TRANSISTOR

2SC458LG(B)

HEAD AMP

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(KA-7002)

SEALED CIRCUIT ASSEMBLIES-PHANTOM VIEWS

Qal,2 2SC4581.G(8)

www.hifiengine.com

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Summary of Contents for KA-7002

Page 1: ...www hifiengine com ...

Page 2: ...KENWOOD HI FI STEREO COMPONENTS KA 7002 SOLID STATE STEREO AMPLIFIER www hifiengine com ...

Page 3: ... tF 80WV CS0 0075 05 C308 Electrolytic 1OO tF 50WV CE02W2A10t C309 Electrolytic 470 tF 50WV CE02W1H47t C3t0 Electrolytic 470 tF 35WV CE02WtV47t C3tt Electrolytic 470 tF 25WV CE02WtE471 C3t2 Oil Impregnated 0 022 F 20 CP02B2J223M C313 Ceramic 0 04 tF 80 20 CK94YG1E403Z RESISTOR Rt01 Insulated Carbon Film 390k O tO 1 4W PD14BY2E394K R102 Insulated Carbon Film 100k O 10 t 4W PDt4BY2Et04K Rt03 Insulat...

Page 4: ...Film 12kn 5 1 4W PO14BY2E123J R218 219 Insulated Carbon Film 7 5kn 5 1 4W PD14BY2E752J R220 221 Insulated Carbon Film 5 6kn 5 1 4W PO14BY2E562J R222 223 Insulated Carbon Film 3 3kn 5 1 4W PD14BY2E332J R224 225 Insulated Carbon Film 15kn 5 1 4W PD14BY2E153J R226 227 Insulated Carbon Film t2kn 5 1 4W PD14BY2E123J R228 229 Insulated Carbon Film 7 5kn 5 1 4W PD14BY2E752J R230 231 Insulated Carbon Film...

Page 5: ... B Five gang R24 4001 05 VR3 BALANCE 50kn G Five gang R24 4001 05 TRANSISTOR DIODE Q1 2 2SA649 03 4 2SD218 Q5 2SD234 D1 5B1 D2 10DC1 D3 4 STV 3 etc Case A01 0134 03 Chassis A10 0236 01 Panel A20 0368 02 Sub Panel A22 0089 02 Rear Panel A23 0198 02 Sole Plate A40 0065 02 Jewel BOB 6006 04 Destination Sticker B40 0458 04 Certification B42 0009 04 LA Standard Sticker B42 0220 00 Warranty Card B46 001...

Page 6: ... Switch Power Cord Bushing Knob 21 BASS TREBLE SPEAKERS MODE TAPE MONI PHONO 2 INPUT Knob 37 9 VOLUME Knob 49 5 BALANCE Knob 8 5 BASS TREBLE TURNOVER Power Transformer Relay 24V 36 9mA In North America leave out the parts of U In other area do out the parts of K Part No E10 2201 05 E11 0042 15 E11 0043 05 E13 0104 05 E13 0802 05 E13 1002 05 E14 0107 05 E15 0010 05 E30 0046 05 F01 0045 03 F05 4022 ...

Page 7: ...NAL VIEW K23 0059 04 K23 0058 04 E I I 0042 I 5 808 6006 04 808 6006 04 E I 3 I 002 05 E I 3 0802 05 531 531 2007 05 N08 0002 04 E I 3 0802 05 840 0458 04 1 6001 05 E30 0046 05 E20 I 20 I 03 E08 0205 05 53 I 2004 05 www hifiengine com ...

Page 8: ... MAIN AMP TONE AMP TOP BOTTOM CHASSIS VIEW C307 PRE AMP 04 LEVEL AMP HIGH FIL 02 LOW FIL VOLUME BALANCE VR1 2 SWITCH ASS Y as PROTECTION 1 1 01 01 MAIN AMP MODE S4 TONE AMP POWER SS sPEAKERS S7 _____ NULL S17 7 www hifiengine com ...

Page 9: ...cking the idling current turn on power switch in a few minutes adjust the variable resistor VRq 3 4 so that tester or DC VTVM coupling to the collector of transistors indicates 50 mA Fig 2 At the same time check the waveform to be correct Fig 3 Not getting the correct waveform on oscilloscope check the collector current of each transistors Because transistor of other channel is broken down LOUDSPE...

Page 10: ...www hifiengine com ...

Page 11: ...GRAM BOTTOM VIEW OF TRANSISTOR 2SC458LG B HEAD AMP XOS 0011 02 SECTION _10 C 1 II 1 II 0 o t Ul 0 J J 0 J II 0 I L 2 J QS2 CsiO 6 KA 7002 SEALED CIRCUIT ASSEMBLIES PHANTOM VIEWS Qal 2 2SC4581 G 8 www hifiengine com ...

Page 12: ...4 Insulated Carbon Film 150n 5 1 4W PD14BY2E151J Rs5 6 Insulated Carbon Film 1k0 5 1 4W PD14BY2E102J Rs7 8 Insulated Carbon Film 4 7k0 5 1 4W PD14BY2E472J Rs9 10 Insulated Carbon Film 47k0 5 1 4W PD14BY2E473J Rs11 12 Insulated Carbon Film 12kn 5 1 4W R92 0018 05 Rs13 14 Insulated Carbon Film 1 2k0 5 1 4W PD14BY2E122J Rs17 Insulated Carbon Film 5600 5 1 4W PD14BY2E561J Rs18 Insulated Carbon Film 22...

Page 13: ...15 11 SECTION SCHEMATIC DIAGRAM BOTTOM VIEW OF TRANSISTOR 2SC458 rrrn 2SC871 r 1 I I Cd IOPl 100 OI 1 O t u ___ SEALED CIRCUIT ASSEMBLIES PHANTOM VIEWS Qdl 2 2SC458LG C Qd3 6 2SC871 E or F KA 7002 www hifiengine com ...

Page 14: ...0 1 4W PD14BV2E222K Rd3 4 Insulated Carbon Film 68kn 10 1 4W PD14BV2E683K Rd5 6 Insulated Carbon Film 470kn 10 1 4W R92 0053 05 Rd7 8 Insulated Carbon Film 390 0 5 1 4W PD14BV2E391J Rd9 10 Insulated Carbon Film 33kn 5 1 4W PD14BV2E333J Rd11 12 Insulated Carbon Film 330kn 5 1 4W R92 0026 05 Rd13 14 Insulated Carbon Film 27kn 5 1 4W PD14BV2E273J Rd15 16 Insulated Carbon Film 330kn 5 1 4W PO14BV2E334...

Page 15: ...SCHEMATIC DIAGRAM BOTTOM VIEW OF TRANSISTOR 2SC871 r x TONE AMP X09 0004 13 SECTION KA 7002 L _J SEALED CIRCUIT ASSEMBLIES PHANTOM VIEWS Qtl 4 2 SC 871 E or F www hifiengine com ...

Page 16: ... D2 0S 3 H_ 9gpudTs Z TnUjg 5_df ah z O DC 0S 3 H_ 9gpudTs Z TnVjg 5_de ah O D1 0S 3 H_ dgpudTs Z TnVjg 5_df ai z Q E1 S 3 H_ 9gpvdTs Z 0TnVjg 5_df ah z O D1 0S 3 H_ 9gpudTs Z 0TnVjg 5_df bh O D2 0S 3 H_ 9gpudTs Z TnVjg 5_df bh P D1 0S 3 H_ 9gpvdTs Z 0TnVjg 5_df bh z O E1 0S 3 I_ 9gpvdTs Z 0TnVjg 5_de bh z O E1 0S 3 H_ 9gpudTs Z 0TnVjg 6 df ah z O E1 0S 3 H_ 9gpudTs Z 0TnVjg 7_df q bh z P E1 0S 3 ...

Page 17: ...HIGH FIL X12 003S OO SECTION KA 7002 SCHEMATIC DIAGRAM r 3 BOTTOM VIEW OF TRANSISTOR 2SC458LG C SEALED CIRCUIT ASSEMBLIES PHANTOM VIEWS 0 0 0 Qp I Qp4 2SC458LG www hifiengine com ...

Page 18: ...lated Carbon Film 560n 5 1 4W PD14BY2E561J Rp7 8 Insulated Carbon Film 5 6kn 5 1 4W PD14BY2E562J Rp9 10 Insulated Carbon Film 100kn 5 1 4W PD14BY2E104J Rp11 12 Insulated Carbon Film 4 7kn 5 1 4W PD14BY2E472J Rp13 14 Insulated Carbon Film 10kn 5 1 4W PD14BY2E103J Rp15 22 Insulated Carbon Film 560kn 5 1 4W PD14BY2E564J Rp23 24 Insulated Carbon Film 10on 5 1 4W PD14BY2E101J Rp25 26 Insulated Carbon F...

Page 19: ...LOW FIL X12 0036 00 SECTION SCHEMATIC DIAGRAM BOTTOM VIEW OF TRANSISTOR 2SC871 _ SEALED CIRCUIT ASSEMBLIES PHANTOM VIEWS 0 Ov1 2 2sca7r 15 14 0 KA 7002 I I I _J www hifiengine com ...

Page 20: ...3 4 Insulated Carbon Film 15kn 5 1 4W PD14BY2E153J Rv5 6 Insulated Carbon Film 680kn 5 1 4W PD14BY2E684J Rv7 8 Insulated Carbon Film 270kn 5 1 4W PD14BY2E274J Rv9 10 Insulated Carbon Film 390kn 5 1 4W PD14BY2E394J Rv11 12 Insulated Carbon Film 470kn 5 1 4W PD14BY2E474J Rv13 14 Insulated Carbon Film 4 7kn 5 1 4W PD14BY2E472J Rv15 16 Insulated Carbon Film 100kn 5 1 4W PD14BY2E104J Rv17 18 Insulated ...

Page 21: ...TOM VIEW OF TRANSISTOR 2SA572WL4 A y 2SC680BL 2SA566 Q 0 b CASE COLLECTOR 2SC627 u I I I I I I I I L 3 SEALED CIRCUIT ASSEMBLIES PHANTOM VIEWS Oql 4 2SA572WL4 Oq5 8 2SC627 1 Oq9 10 2SC680BL Qq11 12 2SA566 Dq9ZB1 14 KA 7002 15 17 181 www hifiengine com ...

Page 22: ...ilm 2 2k n 5 1 4W PD14BY2E222J Rq13 14 Insulated Carbon Film 56k n 5 1 4W PD14BY2E563J Rq15 16 Insulated Carbon Film 15k n 5 1 4W PD14BY2E153J Rq17 20 Insulated Carbon Film 1k n 5 1 4W PD14BY2E102J Rq21 24 Insulated Carbon Film 1oo n 5 1 4W PD14BY2E101J Rq25 26 Insulated Carbon Film 4 7k n 5 1 4W PD14BY2E472J Rq27 28 Insulated Carbon Film 2 2k n 5 1 4W PD14BY2E222J Rq29 32 Insulated Carbon Film 33...

Page 23: ...ISTOR 2SC627 1 2SC497R 2SA497R G u r RY54 7K VR iiK18 1 52V KA 7002 6 L _ _ _ o8 I I L J Qyl 2 2SC497R Qy3 4 5 2SA497R Oy6 2SC627 1 SEALED CIRCUIT ASSEMBLIES PHANTOM VIEWS 0 0y1 2 2SC497 R Qy3 4 5 2SA497 R Q y6 2SC627 I 0y1 2 SV 02 Oy3 4 151554 Oy5 1001 0 www hifiengine com ...

Page 24: ...472J Ry7 8 Insulated Carbon Film 5 6k0 5 1 4W PD14BY2E562J Ry9 Insulated Carbon Film 3 3kn 5 1 4W PD14BY2E332J Ry10 Insulated Carbon Film 100kn 5 1 4W PD14BY2E104J Ry11 Insulated Carbon Film 10kn 5 1 4W PD14BY2E103J Ry12 Metal Film 210n 10 2W RN14AB3D271K TRANSISTOR DIODE POTENTIOMETER Qy1 2 2SC497R Qy3 5 2SA497R Qy6 2SC627 1 Dy1 2 SV 02 Dy3 4 151554 Dy5 10D1 VRy1 2 1kn BI R12 1012 05 etc P C Boar...

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