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Kenwood KC-Z1 Service Manual

Kenwood av-control amplifier/tuner, remote controller.
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AV-CONTROL AMPLIFIER/TUNER,REMOTE CONTROLLER
KC-Z1/RC-Z1
QQ
3 7 63 1515 0
SERVICE MANUAL
Front board
Panel
(A53-1926-04)
(A60-0847-21)
Knob
TE
L 13942296513
(MAIN POWER)
(K29-6307-04)
Lock terminal board
(E20-0321-05)
Oscillating module
(W02-1114-05)
Slide switch
(S62-0034-05)
Dressing panel *
(REAR)
(A21-)
www
Cylindrical receptacle
Foot
(E56-0011-05)
(J02-1142-05)
.
[RC-Z1 Reset method]
Ö@ All clear : While pressing the volume up and down key both, then remove and set the battery or push the reset
button on the rear cover by ball point pen.
ÖA RC-Z1 clear (contrast, sleep timer etc) : While pressing mute key, then remove and set the battery or push the
reset button on the rear cover by ball point pen.
Metallic cabinet
(A01-3290-31)
Knob (REMOTE POWER)
(K29-6306-03)
Phono jack
(E63-0174-05)
Optic receiving module
(W02-1181-05)
Phono jack
(E63-0070-15)
Phono jack
Miniature phone jack
(E63-0047-15)
(E11-0220-05)
x
ao
y
i
8
Holder
Knob (INPUT SELECTOR)
(J19-5633-14)
(K29-6292-03)
Knob (VOLUME)
Knob
Q Q
3
6 7
1 3
(K29-6293-04)
(MUTE, PAGE)
(K29-6308-03)
Rectangular receptacle
(E58-0013-05)
Phono jack
(E63-0179-05)
Phono jack
(E63-0180-05)
Phono jack
(E63-0094-05)
u163
.
2 9
9 4
2 8
© 1996-5/B51-5196-00 (K/K) 1506
Indicator
1 5
0 5
8
2 9
9 4
(B12-0266-04)
Miniature phone jack (2P)
(E11-0188-05)
AC outlet *
(E03-)
Phono jack
(E63-0181-05)
AC power cord *
m
(E30-)
co
* Refer to parts list on page 67.
9 9
Front board
(A53-1927-04)
2 8
9 9
Slide switch
(S62-0001-05)
AC power cord bushing
(E30-2592-15)

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   Summary of Contents for Kenwood KC-Z1

  • Page 1

    AV-CONTROL AMPLIFIER/TUNER,REMOTE CONTROLLER KC-Z1/RC-Z1 3 7 63 1515 0 SERVICE MANUAL © 1996-5/B51-5196-00 (K/K) 1506 Front board Panel Metallic cabinet Holder Knob (INPUT SELECTOR) Front board (A53-1926-04) (A60-0847-21) (A01-3290-31) (J19-5633-14) (K29-6292-03) (A53-1927-04) Knob Knob (REMOTE POWER) Knob (VOLUME) Knob Indicator...

  • Page 2: Table Of Contents

    CONTENTS / ACCESSORIES 3 7 63 1515 0 Contents CONTENTS / ACCESSORIES ......... 2 WIRING DIAGRAM ...........19 LCD CONTROLLER ..........3 PC BOARD ...............21 DISASSEMBLY FOR REPAIR ........4 SCHEMATIC DIAGRAM .......... 33 BLOCK DIAGRAM ............. 5 EXPLODED VIEW ........... 65 CIRCUIT DESCRIPTION ...........

  • Page 3: Lcd Controller

    LCD CONTROLLER 3 7 63 1515 0 After you are finished calibrating the TouchPanel, the Stage 3 Title Screen display for a short time, followed by the MAIN MENU screen : When you activate the Touch Panel for the first time, the Touch the Target screen ap- pears.

  • Page 4: Disassembly For Repair

    DISASSEMBLY FOR REPAIR 3 7 63 1515 0 (1) Remove 5 screws (1), then remove the X08 PCB (2). L 13942296513 (2) Round a string on the volume shaft (3), remove the volume knob. u163 RC-Z1 (1) Remove 2 screws (1), then remove the rear cover (2). (2) Tearing off non-woven fabric (3), remove the flexible flat cable (FFC) (4).

  • Page 5: Block Diagram

    OUT 1~3 +10.5V CVCC VIDEO VIDEO2 STSTEM TO BAT.CHARGER (X14) IC5,6,7 u 1 6 3 MONITOR OUT VIDEO1 S-VIDEO TO BAT.CHARGER IC10 IC33 IC11 VIDEO2 TO RF UNIT BATTERY CHARGER MONITOR OUT BATTERY DCC5555A/22 TO FRONT PANEL KC-Z1 NJM2279 x3...

  • Page 6

    CIRCUIT DESCRIPTION 3 7 63 1515 0 1. Main microprocessor : 78P078GF1ABA (X00 : IC 31) (X08)IC50 (X00)IC34 (X25) SUB µ-COM REPEATER (DATA) 78P058GC1ACA (ONE TIME PROM) LCD REMOCON (X14)J13 SERIAL @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ e ? @ @ h ? @ @ h ?

  • Page 7: Circuit Description

    CIRCUIT DESCRIPTION 3 7 63 1515 0 1-2. Pin description Pin No. Pin Name Description V3.SW1 VCR IC3 (NJU2279D) switch1 port V2.B VCR IC2 (TC4052BP) B port V2.A VCR IC2 (TC4052BP) A port V1.C VCR IC1 (TC4051BP) C port V1.B VCR IC1 (TC4051BP) B port V1.A VCR IC1 (TC4051BP) A port...

  • Page 8

    CIRCUIT DESCRIPTION 3 7 63 1515 0 Pin No. Pin Name Description PRE2.RLY Preout 2 relay SW.RLY Sub woofer (SW) ch. relay S.RLY Surround (SL,SR) ch. relay C.RLY Center (C) ch. relay F.REY Front (FL,FR) ch. relay L.RLY Source direct relay VOL.ATT Volume attenuator VOL.ST4...

  • Page 9

    ZR38500 (AC-3/DSP) SS , SO , SI , SCK , RESET u163 (X08) IC77 (X09) Q43 (X08) IC66 DESTINATION SW MUTE SELECTOR ERROR, SUB1, SUB2, H : KC-Z1 SWDT,XLAT, SCLK, SUBMUTE , SWMUTE DIGSEL1, DIGSEL2 L : KR-V990D SRDT, XMODE,ENPHA...

  • Page 10

    CIRCUIT DESCRIPTION 3 7 63 1515 0 2-2. Pin description Pin No. Pin Name Description DSP1REQ DSP IC1 (LC83015JE):(X08:IC41) request DSP1AK DSP IC1 (LC83015JE):(X08:IC41) acknowledge DSP2RST DSP IC2 (LC83015JE):(X08:IC42) reset AVSS A/D reference voltage (GND) DSP2RDY DSP IC2 (LC83015JE):(X08:IC42) ready DSP2REQ DSP IC2 (LC83015JE):(X08:IC42) request AVREF1...

  • Page 11

    CIRCUIT DESCRIPTION 3 7 63 1515 0 Pin No. Pin Name Description 56,57 DIGSEL1 TC74HC153 digital input selector TYPESEL Model distinction H:KC-Z1 L:KR-V990D Not used RESET Sub u-com reset 61-67 Not used Power supply (+5V) 69-70 X2,X1 4.19MHz ceramics IC(VPP)

  • Page 12

    3 7 63 1515 0 CIRCUIT DESCRIPTION 3-2. Pin function description Pin name Type Pin name Type Pin name Type Pin name Type I/O/T SCKB I/O/T SCKA I/O/T SCKIN I/O/T GN14 I/O/T 104 GP15/MUTE I/O/T I/O/T I/O/T I/O/T L 13942296513 I/O/T WSB/FSB I/O/T...

  • Page 13

    CIRCUIT DESCRIPTION 3 7 63 1515 0 XTI, XTO SCK A Crystal oscillator input/output pins. A parallel resonance Clock input/output pin for A-group serial port. The direction of oscillator for clock signal generation and two tuning capaci- this signal is set by the MA bit of a CFG command. tors are connected to these pins.

  • Page 14

    CIRCUIT DESCRIPTION 3 7 63 1515 0 3-3-3. Operation Mode ICE interface mode selection (JTAG) This device supports the operation modes below. For the command and parameter that select each operation mode, refer to the description of host commands in sec- ICE interface data output (JTAG) tion 4.

  • Page 15

    3 7 63 1515 0 CIRCUIT DESCRIPTION 3-3-5. Decode Status The information below can be accessed from the host during AC- 3 decoding. - Error status - Audio frame information (Sampling rate, bit rate, mode, etc.) 3-3-6. Decoding Delay in AC-3 Mode ZR38500 supports all the bit rates (32 kbps to 640 kbps) and sampling rates (32 kHz, 44.1 kHz, and 48 kHz) pre- scribed by AC-3 algorithm.

  • Page 16

    ALIGN FOR FIG. FIG. OUTPUT SETTINGS OUTPUT SETTINGS POINT POINT SETTINGS SETTINGS POINTS REMOTE CONTROL RECEIVE / TRANSMIT (X05-4570-10) : KC-Z1 REMOTE CONTROL RECEIVE / TRANSMIT (X25-5690-10) : RC-Z1 Connect the ƒ X'TAL 12.6MHz± – frequency counter to Receive FREQUENCY 12.6Hz...

  • Page 17: Adjustment

    3 7 63 1515 0 ADJUSTMENT ƒTest mode KC-Z1 RC-Z1 SETTING Turn on the MAIN POWER Key while holding down Insert the Battery into the RC-Z1 while holding down METHOD the CD Key. the volume up and DOWN key both.

  • Page 18: Wiring Diagram

    (10P) (12P) L07-2090-15 : (K)TYPE L07-2105-15 : (M)TYPE (X05-4570-10) (X14- ) (X00- ) (C/5) (B/9) (X14- ) WH3(3P) w w w (D/9) (X14- ) WH2(7P) (X14- ) (G/9) u 1 6 3 (F/9) (X14- ) WH2(7P) (E/9) WH1(5P) POWER KC-Z1(M)

  • Page 19: Pc Board

    PC BOARD (Component side view) POWER SUPPLY UNIT (X00-2810-XX) 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 Refer to the schematic diagram for the values of resistors and capacitors.

  • Page 20

    PC BOARD (Component side view) SURROUND UNIT (X08-2720-10) 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 Refer to the schematic diagram for the values of resistors and capacitors.

  • Page 21

    PC BOARD (Component side view) 3 7 6 3 1 5 1 5 0 AUDIO UNIT (X09-4330-10) 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 Refer to the schematic diagram for the values of resistors and capacitors.

  • Page 22

    PC BOARD (Component side view) 3 7 6 3 1 5 1 5 0 DISPLAY UNIT (X14-4150-XX) 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 Refer to the schematic diagram for the values of resistors and capacitors.

  • Page 23

    PC BOARD (Component side view) TUNER UNIT (X05-4420-XX) : K,M 3 7 6 3 1 5 1 5 0 DISPLAY UNIT (X14-4150-XX) 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 Refer to the schematic diagram for the values of resistors and capacitors.

  • Page 24

    PC BOARD (Component side view) REMOTE CONTROL RECEIVE/TRANSMIT UNIT (X05-4570-10) 3 7 6 3 1 5 1 5 0 LCD REMOTE CONTROLLER UNIT (X25-5690-10) 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 Refer to the schematic diagram for the values of resistors and capacitors.

  • Page 25

    S101 C21,22 Q111 COUNTRY ABB. TUNER MODE TUNER MODE -17.0V U.S.A. X05-4420-12 0.024 :3.5V :4.7V -17V OTHERS:3.2V OTHERS:2.5V VIDEO2 GENERAL MARKET X05-4420-22 0.016 470P R503 75uS +17V 100KHz(FM) 470P 10kHz(AM) Rch(VCR3) 470P PLAY KC-Z1/RC-Z1 470P R504 Lch(VCR3) KC-Z1(M) (1/8) Y05-3140-10...

  • Page 26

    46.08MHz R311 10K R354 – 0.01 0.01 2.4K R269 VSSVDD IC73 – 2.6V 2.4V (1/2) C301 R251 2.4V C404 0.01 C394 0.47 22u50 3.3K – IC73 2.4V IC61(2/2) C405 R335 220K (2/2) 17.0V 100u10 -5.0V IC64 KC-Z1/RC-Z1 KC-Z1(M) (2/8) Y05-3140-10...

  • Page 27

    C587 0.01 + – – + 5.0V R439 R478 100 C588 100u10 5.0V 5.0V 39 2W R477 100 5.0V X08-1/3 C589 0.01 R438 39 2W C581 0.01 +5V REF C582 TO DIR.AD.DEMO.SEL 100u10 4.194MHz KC-Z1/RC-Z1 DATA LRCK KC-Z1(M) (3/8) Y05-3140-10...

  • Page 28

    0.22 0.22 C104 47u25 1.5K – C100 – 47u25 BPO DC 4.7u50 2.6V IC6(2/2) SUR. -17.0V 6.2K 5.0V C294 1600P IC16 4.7u50 -17.0V (2/2) 0.012 -17.0V KC-Z1/RC-Z1 SIGNAL LINE L116 GND LINE 4.3K +B LINE KC-Z1(M) (4/8) -B LINE Y05-3140-10...

  • Page 29

    OUT IN PRE2 SUB W. SL,SR FL,FR TONE C478 – 4.7u35 -13.5V C285 220P -17.0V OFF:0V X00-B/5- 22u35 100P ON/OFF ON/OFF ON/OFF ON/OFF ON/OFF ON/OFF -15.0V -13.5V RLY GND w w w RLY +B 12.0V -17V +17V KC-Z1(M) (5/8) KC-Z1/RC-Z1 Y05-3140-10...

  • Page 30

    : RD10ES(B) or HZS10N(B) 0.01 D11,22,26,27 : RD5.1ES(B2) or HZS5.1N(B2) X05-457- 9 10 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 CN1(RF) : D5SBA20FO3 or RBV-602LFA : D3SBA20FO3 or RBV-402LFA KC-Z1/RC-Z1 KC-Z1(M) (6/8) Y05-3140-10...

  • Page 31

    PLAY +17V R103 MAIN X00-A/5- RLY +B IC10 POWER WH16 -17V +5.6V (2/2) RELAY C-BUFF Y-BUFF – SL16 POW.RLY CN23 CN24 R152 R151 C110 3.3M 2.2K 4.7u25 R104 C104 ON:0.7V R41 100 -17.0V 1u50 1/2W OFF:0V KC-Z1/RC-Z1 KC-Z1(M) (7/8) Y05-3140-10...

  • Page 32

    LCD ON:3.4V PHASE PHASE 5.0V 5.0V 5.0V LCD OFF:0V COMPARATOR 1 COMPARATOR 2 DTACK 5.0V 5.0V made under license from Dolby Laboratories Licensing MUTE TO KC-Z1 0.8V 5.0V 5.0V R123 5.0V 5.0V RSTIN Corporation. 5.0V R103 ON HOOK 5.0V 5.0V 5.0V...

  • Page 33: Exploded View

    EXPLODED VIEW 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 Parts with the exploded numbers larger than 700 are not supplied.

  • Page 34

    Description Ref. No Parts No. Description ress Parts nation marks nation marks ress Parts KC-Z1 / RC-Z1 1C,2C Åñ G11-2277-04 CUSHION G13-0182-04 CUSHION (RC-Z1) Åñ A01-3290-31 METALLIC CABINET Åñ A02-1280-11 PLASTIC CABINET (RC-Z1) Åñ H10-7124-12 POLYSTYRENE FOAMED FIXTURE Åñ A09-0334-13 BATTERY COVER (RC-Z1) Åñ...

  • Page 35

    3 7 6 3 1 5 1 5 0 PARTS LIST Åñ New Parts Åñ New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No.

  • Page 36

    3 7 6 3 1 5 1 5 0 PARTS LIST Åñ New Parts Åñ New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No.

  • Page 37

    3 7 6 3 1 5 1 5 0 PARTS LIST Åñ New Parts Åñ New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No.

  • Page 38

    PARTS LIST 3 7 6 3 1 5 1 5 0 New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No.

  • Page 39

    PARTS LIST 3 7 6 3 1 5 1 5 0 New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No.

  • Page 40

    PARTS LIST 3 7 63 1 5 1 5 0 New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No.

  • Page 41

    PARTS LIST 3 7 63 1 5 1 5 0 New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No.

  • Page 42

    PARTS LIST 3 7 6 3 1 5 1 5 0 New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. & Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No.

  • Page 43

    PARTS LIST 3 7 6 3 1 5 15 0 New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No.

  • Page 44

    PARTS LIST 3 7 6 3 1 51 5 0 New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. ¡ ™ Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No.

  • Page 45

    PARTS LIST 3 7 6 3 15 1 5 0 New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. £ ¢ Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No.

  • Page 46

    PARTS LIST 3 7 6 3 1 5 1 5 0 New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. ∞ § Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No.

  • Page 47

    PARTS LIST 3 7 6 3 15 15 0 New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. ¶ • Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No.

  • Page 48

    PARTS LIST 3 7 6 3 1 5 1 5 0 Åñ New Parts Åñ New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. ª º Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No.

  • Page 49

    PARTS LIST 3 7 6 3 1 5 1 5 0 Åñ New Parts Åñ New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. ⁄ ¤ Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No.

  • Page 50

    PARTS LIST 3 7 6 3 1 5 1 5 0 Åñ New Parts Åñ New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. ‹ › Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No.

  • Page 51: Parts List

    PARTS LIST 3 7 63 1515 0 Åñ New Parts Parts without Parts No. are not supplied. fi Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. Add- Desti- Ref. No Parts No.

  • Page 52: Specifications

    SPECIFICATIONS 3 7 63 1515 0 Note : Due to product upgrades, specifications may change without notice. Pre amp section Total harmonic distortion: All channels except for Subwoofer channel 0.003% (1 kHz, 1.0 volt) 0.003% (20 Hz ~ 20 kHz, 1.0 volt) Subwoofer 0.05% (31.5 Hz, 1.0 volt)

  • Page 53

    Weight (net) 26.9 Ib (12.2 kg) L 13942296513 KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be changed without notice. Note: Component and circuity are subject to modification to insure best operation 14-6,Dogenzaka 1-chome, Shibuya-ku, Tokyo, 150 Japan under differing local conditions.

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Rc-z1

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