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Kenwood KR-609 Service Manual

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CASSETTE RECEIVER
KRC-609
QQ
3 7 63 1515 0
KRC-679R/RY
KRC-781R/789
SERVICE MANUAL
KRC-609 (K)
KRC-609
CR2
47W x 4
LOUD
B NR
SCAN
KRC-781R (M)
KRC-781R
CR2
K3I
47W x 4
LOUD
B NR
SCAN
TE
L 13942296513
The following reference numbers with accessory parts are the same reference numbers
used on EXPLODED VIEW and PARTS LIST.
201
277
www
.
PROG
PWR OFF
AUD
B.S/RDM
REP
MTL/M.RDM
AUTO
DISP
AME
NAME.S
PROG/PTY
PWR OFF
AUD
B.S/RDM
REP
MTL/M.RDM
T I
DISP
VOL ADJ
NAME.S
DC1
261
780
276
x
ao
u163
y
i
2 9
8
KRC-679R/RY (E)
KRC-679R
CR2
K3I
47W x 4
LOUD
B NR
KRC-789 (M)
KRC-789
CR2
47W x 4
Q Q
LOUD
B NR
3
6 7
1 3
1 5
DC2
222
x2
259
co
RC1
.
9 4
2 8
© 2001-4 PRINTED IN KOREA
B51-7793-00 (K) 3402
PROG/PTY
AUD
SCAN
B.S/RDM
REP
MTL/M.RDM
T I
DISP
NAME.S
VOL ADJ
PROG
AUD
SCAN
B.S/RDM
REP
MTL/M.RDM
AUTO
DISP
AME
NAME.S
0 5
8
2 9
9 4
2 8
278
216
m
9 9
PWR OFF
PWR OFF
9 9

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Summary of Contents for Kenwood KR-609

  • Page 1 CASSETTE RECEIVER KRC-609 3 7 63 1515 0 KRC-679R/RY KRC-781R/789 SERVICE MANUAL © 2001-4 PRINTED IN KOREA B51-7793-00 (K) 3402 KRC-679R/RY (E) KRC-609 (K) KRC-609 KRC-679R PROG PROG/PTY PWR OFF PWR OFF 47W x 4 47W x 4 LOUD B NR SCAN B.S/RDM MTL/M.RDM...
  • Page 2 3 7 6 3 1 5 1 5 0 A 8V FM+B FM : B.U.5V 470mV(KTYPE) 251mV(ETYPE) AM+B MUTE AUDIO 1.8V PRE OUT DRIVER AM : 230mV SW5V E-VOL E TYPE K TYPE BUFFER DECODER N.C. TAPE 1800mV 1800mV 388mV 1372mV 1800mV TAPE...

  • Page 3: Component Description

    KRC-609,679R/RY,781R/789 3 7 63 1515 0 COMPONENT DESCRIPTION SYNTHESIZER UNIT (X14-xxxx-xx) FUNCTION OPERATION Q1-4 PREOUT MUTE SW Preouts are muted when the base level goes "H". Q17,20 AUDIO 8V AVR Q20 is turned on when Q17's base level goes "H". PANEL 5V SW Q45 is turned on when Q18's base level goes "H".

  • Page 4: Microcomputer's Terminal Description

    KRC-609,679R/RY,781R/789 3 7 63 1515 0 MICROCOMPUTER'S TERMINAL DESCRIPTION (X14-) IC1 : SYSTEM µ-COM PORT PORT NAME FUNCTION OPERATING CONDITION AM+B AM power supply. "H" : During receiving AM. FM+B FM power supply. "H" : During receiving FM. "H" : During receiving. Noise detection time constant SW.
  • Page 5 KRC-609,679R/RY,781R/789 3 7 63 1515 0 MICROCOMPUTER'S TERMINAL DESCRIPTION (X14-) IC1 : SYSTEM µ-COM PORT PORT NAME FUNCTION OPERATING CONDITION ILLUMI-ON Illumination. "H" : Illumination on. "L" : Illumination off. 53,54 BVDD Power supply. BVSS GND. TYPE-2 I/O Destination SW. TYPE-1 I/O Destination SW.

  • Page 6: Test Mode

    KRC-609,679R/RY,781R/789 3 7 63 1515 0 TEST MODE TEST MODE • Balance is adjusted in 3 steps of Left Max/Center/Right 1. How to enter the test mode Max with the Track Up/Down keys. While holding the FM and Preset 6 keys, reset the unit. •...
  • Page 7 KRC-609,679R/RY,781R/789 3 7 63 1515 0 TEST MODE 11. Other specifications (3) The security code is cleared and the unit enters the • Automatic panel closing when a tape/CD is inserted is ALL OFF mode. inhibited. (M&T model) (4) If you commit a mistake in the code entry, the unit •...
  • Page 8 KRC-609,679R/RY,781R/789 3 7 63 1515 0 ADJUSTMNET BALANCE/FADER/BASS/TREBLE : CENTER T.ADV/METAL/DOLBY NR/AUTO : OFF INPUT OUTPUT RECEIVER ALIGNMENT ITEM ALIGN FOR FIG. SETTINGS SETTINGS SETTINGS POINTS CASSETTE DECK SECTION Connect an DOLBY VR1 (L ch) AC voltmeter TCC-130 TAPE PLAY 388mV (PLAY BACK VR2 (R ch)

  • Page 9: Pc Board(Component Side View)

    PC BOARD(Component side view) (X14-) Ref. No. IC1 IC2 IC4 IC10 IC11 IC13 IC15 IC16 Q1 Q2 Q3 Q4 Q17 Q18 Q20 Q21 Q22 Q23 Q24 Q25 Q26 Q27 Q28 Q29 Q30 3 7 6 3 1 5 1 5 0 Addtess 5E 2H 2H 2H 2H SWITCH UNIT...

  • Page 10: Pc Board(Foil Side View)

    PC BOARD(Foil side view) (X14) Ref.No. IC1 IC2 IC4 IC10 IC11 IC13 IC15 IC16 Q1 Q2 Q3 Q4 Q17 Q18 Q20 Q21 Q22 Q23 Q24 Q25 Q26 Q27 Q28 Q29 Q30 3 7 6 3 1 5 1 5 0 Address 2O 2P 2O 2O SWITCH UNIT...
  • Page 11 PRE OUT DC IN F1(10A) FRONT REAR SYNTHESIZER UNIT (FS2-0006-05) POWER IC CH CN 3 7 6 3 1 5 1 5 0 (X14-xxxx-xx) FRONT L REAR L WHT/BLK GRN/BLK GRY/BLK VIOL/BLK J3 TOP VIEW FRONT R REAR R VIOL 12 8 PNK/BLK ANT CONT...
  • Page 12 : RD6.8MW : TDA7407D D3,21 : MA3062-M L1 52mH : TA8263BH D11-18 : AM01Z IC10 : TC74HC02AF : MA3062WA IC11 : TDA7479D : RM10ZLF 3 7 6 3 1 5 1 5 0 IC13 : BA6219BFP-Y : RB160L-40 IC15 S-80837ANNP : MA4056(N)-M IC16 : CXA2560Q...
  • Page 13 SWITCH UNIT (X13-xxxx-xx) 3 7 6 3 1 5 1 5 0 Q3,4 KEYILLUMINATION LCD REFERENCE VOLTAGE SUPPLY S.GND 1 10.7V ILL+B ILLUM G L CLK KEY DETECTION L CE DIMMER SW RESET L DATAS X16- L DATAL C5 0.1 DIMMER REMO GND2...

  • Page 14: Exploded View (Mechanism)

    KRC-609,679R/RY,781R/789 3 7 63 1515 0 EXPLODED VIEW (MECHANISM) L 13942296513 u163 D40-1147-05 Parts with exploded numbers larger than 700 are not supplied.

  • Page 15: Exploded View (Unit)

    KRC-609,679R/RY,781R/789 3 7 63 1515 0 EXPLODED VIEW (UNIT) S800 M2x2(BLK) : N09-4184-05 M2x2.5 : N09-4448-05 CME1 M2x1.8(BLK) : N09-4449-05 WASHER φ3.5 : N19-2150-04 WASHER φ3 : N19-2160-04 S801 E RING : N24-3015-60 CN800 M2x3 : N35-2003-46 M2x4(BLK) : N35-2004-45 M2x2.5 : N38-2025-46 : N80-2005-46...

  • Page 16: Parts List

    KRC-609,679R/RY,781R/789 3 7 63 1515 0 PARTS LIST ✽ New Parts Parts without Part No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. Desti- Desti- Description Description Ref.
  • Page 17 KRC-609,679R/RY,781R/789 3 7 63 1515 0 PARTS LIST ✽ New Parts Parts without Part No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. (X13-xxxx-xx) Teile ohne Parts No. werden nicht geliefert. Desti- Desti- Description Description Ref.
  • Page 18 KRC-609,679R/RY,781R/789 3 7 63 1515 0 PARTS LIST ✽ New Parts Parts without Part No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. (X14-xxxx-xx) Desti- Desti- Description Description Ref.
  • Page 19 KRC-609,679R/RY,781R/789 3 7 63 1515 0 PARTS LIST ✽ New Parts Parts without Part No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. (X14-xxxx-xx) Desti- Desti- Description Description Ref.
  • Page 20 KRC-609,679R/RY,781R/789 3 7 63 1515 0 PARTS LIST ✽ New Parts Parts without Part No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. (X14-xxxx-xx) Desti- Desti- Description Description Ref.

  • Page 21: Sub-Circuit Unit (X16-118X-Xx)

    KRC-609,679R/RY,781R/789 3 7 63 1515 0 PARTS LIST ✽ New Parts Parts without Part No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. (D40-1147-05) Desti- Desti- Description Description Ref.

  • Page 22: Parts Descriptions

    KRC-609,679R/RY,781R/789 3 7 63 1515 0 PARTS DESCRIPTIONS L 13942296513 u163...

  • Page 23: Specifications

    1.5Kg 1.5Kg 1.5Kg 1.5Kg KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be changed without notice. Manufacture under license from Dolby Laboratories. KENWOOD CORPORATION "Dolby" and the double-D symbol are trademarks of Dolby Laboratories.

This manual is also suitable for:

Krc-679rKrc-789Krc-679ryKrc-781rKrc-v679rKrc-v679ry

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