Kenwood KRC-691 Service Manual Download

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SRC

KRC-691

47Wx4

DOLBY B NR

SCAN

B.S/RDM

REP

MTL/M.RDM

B NR

NAME

DISP

AUD

PROG/PTY

DAB

OFF

LOUD

KRC-765
KRC-691/691Y

2001-12 PRINTED IN JAPAN

B51-7878-00 (S) 2177

SERVICE MANUAL

CASSETTE RECEIVER

∗

Front glass

(B10-4192-01)

Knob(SRC)
(K25-1410-03)

●

KRC-691

MECHANISM EXTENSION CORD

W05-0477-00 (7P)

W05-0609-00 (10P)

∗

Refer to the PARTS LIST

Plastic cabinet assy
(A02-1486-13)

Screw set
(N99-1719-05)
: KRC-765 only

Remote controller assy
RC-410 (A70-2025-05)
: KRC-765 only

Screw set
(N99-1656-05)

Escutcheon
(B07-3055-05)

Knob(VOL)
(K25-1414-03)

∗

Panel assy

(A64-2614-02)

Knob(1-6)
(K25-1409-03)

Knob(FM,AM)
(K25-1412-03)

Knob(ATT)
(K25-1411-03)

Mounting hardware assy
(J21-9716-03)

DC cord
(E30-4944-05)

DC cord
(E30-4940-05)

Lever
(D10-4589-04)

Summary of Contents for KRC-691

Page 1: ...691 MECHANISM EXTENSION CORD W05 0477 00 7P W05 0609 00 10P Refer to the PARTS LIST Plastic cabinet assy A02 1486 13 Screw set N99 1719 05 KRC 765 only Remote controller assy RC 410 A70 2025 05 KRC 765 only Screw set N99 1656 05 Escutcheon B07 3055 05 Knob VOL K25 1414 03 Panel assy A64 2614 02 Knob 1 6 K25 1409 03 Knob FM AM K25 1412 03 Knob ATT K25 1411 03 Mounting hardware assy J21 9716 03 DC c...

Page 2: ...LBY EQ CASSETTE AUDIO S METER PLL DATA PLL CLK SW 5V FM AM TAPE CHANGER S METER QUAL SDA SCK S MUTE A 8V SUB MOT B SUB PACK IN F R T END STBY HEAD COM HEAD L HEAD R MODE SUB RCLK QUAL RDATA S METER IFC PLL DATA PLL CLK MUSIC MS CONT F R T MODE PACK IN M STBY T END METAL EQ MUTE DATA C CH RST CH MUTE DOLBY DATA H CH CON CH CLK REQ H REQ C SUB RESET MOTOR ILL ON AM B FM B SCK SDA PRE MUTE MUTE BEEP ...

Page 3: ...Q14 Q15 SW 14V Audio 8V ON OFF SW Q15 is turnd ON when Q14 s base goes H Q16 Q17 AUDIO 8V AVR Darlington connection Q18 Q19 Main motor SW Q19 is turnd ON when Q18 s base goes H Q20 Q21 ILL power ON OFF SW Q21 is turnd ON when Q20 s base goes H Q23 ILL AVR Inverted darlington connection Q31 Dimmer control SW Small light detection when base goes H Q32 Q33 Power antenna SW Q33 is turnd ON when Q32 s ...

Page 4: ...CC ON H OFF Panel does not exists or ACC OFF 23 R DATA I Data input from the RDS decoder IC 24 R QUAL I Quality input from the RDS decoder IC 25 SUB O Sub motor output 26 SUB O Sub motor output 27 FWD rev I Cassette tape running direction detection H FWD L REV 28 MS CONT O ADV sensitivity control H PLAY L FF REV 29 metal O NORMAL METAL change H NORMAL L METAL 30 EQ MUTE O EQ MUTE change H ON L OFF...

Page 5: ... detection H OFF L ON 62 CH REQC I Request input from changers H OFF L ON 63 ILL ON O Illumination output terminal H ON L OFF 89 KEY REQ I Panel key interrupt input L Key input exist 65 R CLK I Clock input from the RDS decoder IC 66 PACK IN I Cassette pack in detection H Pack in 67 VSS0 GND port 68 VDD1 Positive power supply 69 X2 Main clock output 12MHz 70 X1 I Main clock input 71 TEST I Program ...

Page 6: ... returns back by one track during playback 7 Audio system The product enters the audio adjustment mode when the Q key is pressed momentarily Continuous advance operation from remote control is prohibited The Bass Middle Treble is adjusted to either one of the 3 steps of MIN Center MAX with Track up down key Balance is adjusted to either one of the 3 steps of Left MAX Center Right MAX with Track up...

Page 7: ...the product enters the code requesting mode 10 Special display when the display is All ON If the PRESET key is pressed while all displays are turned on by ALL OFF the following display appears PRESET 1 Version display 8 digits Month Day Hour Minute Display xxxxxxxx System microcomputer PRESET 2 All displays are turned on Short press Power ON time display PRESET 3 Long press Power ON time is cleare...

Page 8: ...output 1 AZIMUTH TCC 153 SP OUT screw level in playing FWD b 10kHz FWD REV and REV becomes maximum each DOLBY Connect an AC VR1 L 2 PLAY BACK LEVEL TCC 130 voltmeter to CN5 VR2 R 388mV a X14 BALANCE FADER BASS MID TREBLE CENTER T ADV METAL DOLBY NR OFF b AZIMUTH PANEL FRONT FWD REV P R L L CN5 G R a DOLBY VR2 VR1 F E ANEL FRONT ...

Page 9: ... 1640 10 1662 70 J74 1314 02 X89 2510 10 2522 70 J74 1325 02 X89 2510 10 2522 70 J74 1325 02 X16 1640 10 1662 70 J74 1314 02 3 1 2 4 1 36 37 68 SRC ATT FM AM AUD RST 1 2 3 4 5 6 DISP TI KS1 KS2 KI4 KI1 KI5 KS4 KS3 KI2 KI3 IC2 D5 D6 D7 ED1 D18 D19 D8 D9 D10 D11 D12 D13 D14 D15 D16 D17 D20 D21 E B E B E B E B B E B E C7 C8 C9 R20 R9 C1 C2 C3 C4 C5 R27 R29 C6 R18 R19 R28 C10 C11 R23 CP1 R12 R30 R31 R...

Page 10: ...W23 W24 W29 W28 W17 W20 C51 L7 L9 L1 BE E B E B B E B E BE E B BE BE EB EB BE BE EB BE EB 16 9 8 1 1 10 5 6 1 20 41 60 61 80 21 40 10 1 30 21 31 40 11 20 1 7 8 14 1 4 8 5 1 14 15 28 E B E B 1 2 3 1 1 2 B E B E 10 B E 1 7 B E B E 18 2 13 9 3 1 16 8 9 1 1 2 25 24 1 24 1 1 17 4 5 8 7 12 6 11 10 2 IC3 IC2 IC10 IC7 D11 D52 D54 Q11 Q13 Q4 Q1 Q2 Q3 Q51 Q42 Q53 Q21 Q31 Q20 Q38 Q39 Q35 Q36 D67 D68 D69 D16 ...

Page 11: ... R78 R58 R79 R82 VR2 VR1 X3 L4 L2 L11 L8 C55 C150 C146 C12 C28 C93 C27 C25 C26 C73 C81 C76 C74 C83 C125 C124 C11 C3 C82 C154 C13 C4 C161 C143 C91 C56 C53 C58 C59 C24 C23 C21 C22 W25 W26 W16 W15 W14 W13 W11 W18 W12 W22 W21 W19 W27 W23 W24 W29 W28 W17 W20 C51 L7 L9 L1 E B E B 3 1 1 2 B E B E 10 B E 1 7 B E B E 18 2 13 9 3 1 16 8 9 1 1 2 25 24 1 24 1 1 17 4 5 8 7 12 6 11 10 2 J4 J2 S1 D82 CN3 Q12 Q17...

Page 12: ...40 E2PROM P MUTE R244 1K R243 10K R242 1K R241 1K 39 IC2 DATA 38 IC2 CLK 39 38 22K 10u10 R165 2 7k EXTRES CD OUT4 OUT3 IN3 SGND IN1 C123 0 01 OUT4 OUT3 C124 10u6 3 42 BU C81 0 47u50 10 8 6 4 C82 22u16 SVR VCC PGND ST BY 2 BU BU PGND R107 10K FUSE 16 14 15 B U BU GND ACC TEL MUTE DIMMER P CON 1 3 2 13 11 12 10 9 RR FR RR FR RR RR FR FR ANT CON FL RL RL FL FL RL FL RL 4 6 5 7 8 L1 10 B 11 2 C75 0 06...

Page 13: ...VDD VLCD VLCD0 VLCD1 VLCD2 VLCD3 VLCD4 VSS TEST OSC INH DO CE CL DI S4 S3 S2 S1 S10 S8 S7 S6 S5 S9 S15 S14 S13 S12 S11 S20 S19 S18 S17 S16 S21 S22 S23 S38 S34 S32 S31 S33 S36 S35 S37 S46 S42 S40 S39 S41 S44 S43 S45 S47 S50 S30 S29 S60 S59 S58 S57 S56 S55 S54 S53 S52 S51 C4 C1 C8 C2 C3 C7 C5 C6 KS1 KS4 KS2 KS3 0 01 10K R16 R5 C4 0 1 C3 0 1 R4 C2 0 1 R3 C5 100 R9 2 2 C7 S49 S48 S25 S24 S50 S46 S47 S...

Page 14: ... 44 39 57 14 43 G R R L M Q Q L M Ex2 M M 887 C L L L P L S G 899 G G G G H Bx2 M M M M N Dx2 Ax3 F F 5 P KRC 765 691 691Y 20 Parts with exploded numbers larger than 700 are not suppied EXPLODED VIEW UNIT C D 1 2 3 A B C D E F G H J K L N M2 6x3 f2x5 f2x8 BLK f3x5 M2x5 M2 6x6 BLK M2 6x6 f3x8 f3x14 f2 6x6 WASHER E RING N38 2630 46 N80 2005 46 N80 2008 45 N83 3005 46 N84 2005 46 N84 2606 45 N84 2606...

Page 15: ...73GB1H103K CHIP C 0 010UF K C55 C90 2594 05 ELECTRO 10UF 10WV C56 CE04CW0J101M ELECTRO 100UF 6 3WV C58 CE04CW1C101M ELECTRO 100UF 16WV C59 CE04CW1A221M ELECTRO 220UF 10WV C61 68 CK73GB1E473K CHIP C 0 047UF K C61 68 CK73GB1H473K CHIP C 0 047UF K C71 CK73GB1H103K CHIP C 0 010UF K E1 KRC 765 691 691Y The language of an instruction manual E ENG T CHI A ARA F FRE G GER S SPA P POR D DUT I ITA H HUN C C...

Page 16: ...K CHIP C 0 22UF K C164 CK73GB0J105K CHIP C 1 0UF K C165 CC73GCH1H220J CHIP C 22PF J C166 CC73GCH1H330J CHIP C 33PF J C168 CK73GB1H102K CHIP C 1000PF K CN1 E40 9541 05 PIN ASSY CN2 E41 0167 05 PIN ASSY CN4 E40 3260 05 PIN ASSY E1 CN5 E40 9184 05 PIN ASSY J1 E58 0863 15 RECTANGULAR RECEPTACLE J2 E63 0877 05 PIN JACK J3 E56 0834 05 CYLINDRICAL RECEPTACLE J4 E04 0312 05 RF COAXIAL CABLE RECEPTACLE P1 ...

Page 17: ...73GB2A473J CHIP R 47K J 1 10W R193 RK73GB2A472J CHIP R 4 7K J 1 10W R201 RK73GB2A104J CHIP R 100K J 1 10W M1 R202 203 RK73GB2A104J CHIP R 100K J 1 10W E1 R203 RK73GB2A104J CHIP R 100K J 1 10W M1 R205 RK73GB2A104J CHIP R 100K J 1 10W R207 RK73GB2A104J CHIP R 100K J 1 10W R209 RK73GB2A104J CHIP R 100K J 1 10W R211 212 RK73GB2A102J CHIP R 1 0K J 1 10W R213 RK73GB2A474J CHIP R 470K J 1 10W R214 215 RK...

Page 18: ...GB2A222J CHIP R 2 2K J 1 10W R6 RK73GB2A392J CHIP R 3 9K J 1 10W R7 8 RK73GB2A223J CHIP R 22K J 1 10W R9 RK73GB2A101J CHIP R 100 J 1 10W R10 RK73GB2A102J CHIP R 1 0K J 1 10W R11 RK73GB2A4R7J CHIP R 4 7 J 1 10W R12 RK73GB2A751J CHIP R 750 J 1 10W R14 RK73GB2A102J CHIP R 1 0K J 1 10W R15 16 RK73GB2A103J CHIP R 10K J 1 10W R17 19 RK73FB2B331J CHIP R 330 J 1 8W SYNTHESIZER UNIT X14 68XX XX SWITCH UNIT...

Page 19: ... 35 2B D13 1327 08 GEAR 36 2B D13 1328 08 GEAR 37 3A D13 1329 08 GEAR 38 3A D10 4119 08 ARM 39 1B D13 1330 08 GEAR 40 2A D13 1331 08 GEAR 41 2A D13 1332 08 GEAR 42 2B J11 0619 08 CLAMPER 43 1B D13 1333 08 GEAR 44 1B D13 1334 08 GEAR 45 2A D13 1335 08 GEAR 46 2B D10 4120 08 ARM 47 2B J19 4738 08 HOLDER 48 2B J11 0620 08 CLAMPER 52 2A D03 0312 08 REEL DISK 53 3A D15 0913 08 PULLEY 55 1A D10 4121 08 ...

Page 20: ...Hz 10dB Treble 10kHz 10dB General Operating Voltage 14 4V 11V 16V allowable Current Consumption 10A Installation Size W 182mm H 53mm D 150mm Weight 1 20kg KRC 765 KRC 691 691Y US and foreign patents licensed from Dolby Laboratories Licensing Corporation FM Section Frequency Range 87 5MHz 108 0MHz Frequency Step 50kHz Usable Sensitivity S N 26dB 0 7µV 75Ω Quieting Sensitivity S N 46dB 1 6µV 75Ω Fre...

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