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JVC HX-Z30 Service Manual

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SERVICE MANUAL
COMPACT COMPONENT SYSTEM
6
2003
22067
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-36
5
TROUBLE SHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-43
6
DESCRIPTION OF MAJOR ICs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-44
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LIMITED
HX-Z30
SP-HXZ30
CA-HXZ30

TABLE OF CONTENTS

SP-HXZ30
Area Suffix
J ------------------ U.S.A.
C --------------- Canada
No.22067
2003/6

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  • Page 1: Table Of Contents

    SERVICE MANUAL COMPACT COMPONENT SYSTEM 22067 2003 HX-Z30 SP-HXZ30 SP-HXZ30 CA-HXZ30 Area Suffix J ------------------ U.S.A. C --------------- Canada TABLE OF CONTENTS PRECAUTION............... . . 1-3 SPECIFIC SERVICE INSTRUCTIONS .
  • Page 2 SPECIFICATION Amplifier section-CA- Output Power SUBWOOFERS 190 W per channel min. RMS driven into 6 Ω at 63 Hz with no more than 10% total HXZ30 harmonic distortion. MAIN SPEAKERS 80 W per channel min. RMS driven into 6 Ω at 1 kHz with no more than 10% total harmonic distortion.

  • Page 3: Precaution

    SECTION 1 PRECAUTION Safety Precautions (1) This design of this product contains special hardware and voltmeter. many circuits and components specially for safety purpos- Move the resistor connection to each exposed metal es. For continued protection, no changes should be made part, particularly any exposed metal part having a return to the original design unless authorized in writing by the path to the chassis, and measure the AC voltage across...
  • Page 4 Importance administering point on the safety C250 B2101 D253 B2005 CN212 CN213 R250 CN214 Q251 Q252 B2104 D256 Q250 C251 C253 R253 CN233 C255 B2001 R254 R251 B2006 C257 C254 FT111 FT112 B2602 D252 B2204 D250 C259 C252 B2002 B2102 C256 T002 B2401...
  • Page 5 Preventing static electricity Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy the laser diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs. 1.6.1 Grounding to prevent damage by static electricity Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as CD players.

  • Page 6: Specific Service Instructions

    SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. 1-6 (No.22067)

  • Page 7: Disassembly

    SECTION 3 DISASSEMBLY Main body 3.1.1 Removing the metal cover (See Fig.1~3) (1) Remove the six screws A on the back of the body. (2) Remove the screw B on each side of the body. (3) Remove the metal cover from the body by lifting the rear Metal cover part of the cover.
  • Page 8 3.1.2 Removing the CD changer mechanism assembly (See Fig.4, 5) • Prior to performing the following procedure, remove the metal CD changer mechanism assembly cover. Front panel assemby (1) Disconnect the card wire from connector CN651 on the CD servo control board on the right bottom of the CD changer mechanism assembly.
  • Page 9 3.1.3 Removing the front panel assembly (See Fig.6~9) • Prior to performing the following procedure, remove the metal cover and the CD changer mechanism assembly. (1) Disconnect the card wires from connector CN44 and CN870 on the main board on the right side of the body. Band (2) Disconnect the wire from connector CN701 on the bridge board.
  • Page 10 3.1.4 Removing the tuner pack assembly (See Fig.10, 11) • Prior to performing the following procedure, remove the metal Tuner pack assembly cover and the CD changer mechanism assembly. (1) Disconnect the card wire from connector CN1 on the tuner pack assembly on the right side of the body.

  • Page 11: See Fig.

    3.1.5 Removing the rear panel (See Fig.10, 12~16) • Prior to performing the following procedure, remove the metal Bridge board Fan assembly cover and the CD changer mechanism assembly. CN206 (1) Remove holding board by remove a plastic rivet and then slide out the holding board as shown in fig.

  • Page 12: See Fig.

    3.1.6 Removing the fan assembly (See Fig.17, 18) • Prior to performing the following procedure, remove the metal cover, the CD changer mechanism assembly and the rear pan- (1) Cut the band holding the fan wire. (2) Remove two screws G on the rear panel. (3) Rotate fan assembly in clockwise direction to release fan assembly from rear panel (joints c).
  • Page 13 3.1.8 Removing the bridge board / regulator board / heat sink (See Fig.20~23) • Prior to performing the following procedure, remove the metal Bridge board cover, the CD changer mechanism assembly, the rear panel and main board. (1) Disconnect the wire from connector CN212, CN213 and Heat sink CN214 on the primary board respectively and remove the band attaching the wires.
  • Page 14 3.1.9 Removing the power transformer assembly (See Fig 24, 25) • Prior to performing the following procedure, remove the metal Power transformer cover, the CD changer mechanism assembly, the rear panel, assembly the main board and the bridge board / regulator board. (1) Remove the screw N attaching the primary board.
  • Page 15 Front panel assembly Prior to performing the following procedure, remove the metal cover, the CD changer mechanism assembly and the front panel assembly. 3.2.1 Removing the cassette mechanism assembly (See Fig.26) (1) Disconnect the card wire from connector CN33 on the head Head amplifier &...
  • Page 16 3.2.4 Removing the FL board assembly (See Fig.30, 31) • Prior to performing the following procedure, remove the switch / micon board. (1) Remove the five screws T attaching the stay bracket (1). (2) Remove the three screws U attaching the FL board as- sembly.
  • Page 17 CD changer mechanism 3.3.1 Removing the tray assembly (See Fig.1 ~ 5) Open det lever (1) Remove the two screws A from the top cover and release the two joints a on both sides of the body. (2) Remove the top cover with the two rods attached to the top cover and lifter assembly respectively.
  • Page 18 3.3.2 Removing the servo control board Card wire (See Fig.6 ~ 9) Caution: Short round Solder the short-circuit point on the pickup before disconnect- ing the card wire extending from the pickup. If you do not follow this instruction, the pickup may be damaged. (1) Disconnect the card wire from connector CN251 and each wire from connector CN252, CN253 and CN602 on the ser- vo control board on the bottom of the body.
  • Page 19 3.3.4 Removing the motor board (See Fig.10 , 11) • Prior to performing the following procedure, remove the servo control board. (1) Turn over the body and remove the two screws D. Move the CD module bkt. in the direction of the arrow to release two joints f.
  • Page 20 3.3.5 Removing the CD tramecha assembly (See Fig.12) • Prior to performing the following procedure, remove the servo control board. (1) Turn over the body and remove the three screws F attach- ing the tramecha. CD Tramecha assembly Fig.12 1-20 (No.22067)
  • Page 21 3.3.6 Removing the pickup (See Fig.13 , 14) Mecha base • Prior to performing the following procedure, remove the servo Pickup assembly control board and CD tramecha assembly. (1) From top of the CD tramecha assembly, turn the cam gear in the direction of the arrow to move the pickup assembly outward.
  • Page 22 3.3.7 Removing the side (L)/ tray switch board (See Fig.15 ~ 17) • Prior to performing the following procedure, remove the tray assembly. (1) Remove the two screws H attaching the side (L) on top of the body. (2) From the side of the body, remove the spacer fixing the tray switch board and motor board.
  • Page 23 3.3.8 Removing the side (R) assembly Side (R) assembly (See Fig.18 ~ 22) • Prior to performing the following procedure, remove the tray assembly. (1) Push and release the two tabs m of the gear cover through the two notches inside the side (R) assembly. Remove the gear cover outward.
  • Page 24 3.3.9 Removing the lifter assembly Hook (See Fig.23 ~ 27) • Prior to performing the following procedure, remove the tray assembly and side (L)/ side (R) assembly. (1) From top of the body, turn the 1 gear clockwise to move the lifter assembly upward as shown in Fig.24.
  • Page 25 3.3.10 Removing the rack holder assembly/ sensor assembly (See Fig.28 ~ 33) • Prior to performing the following procedure, remove the tray 1 gear assembly, side (L)/ side (R) assembly, lifter assembly. Attention: If the slide gear of the body places at joint w of the rack holder assembly, turn the 1 gear counterclockwise to move the slide gear toward the front.
  • Page 26 Sensor board Soldering point SV resister Sensor assembly Sensor braket Sensor slider Fig.32 Spring Fig.30 Sensor assembly Sensor slider Spring Slide gear Fig.31 Slide lever Spring Fig.33 1-26 (No.22067)
  • Page 27 3.3.11 Removing the motor (See Fig.34 ,35) • Prior to performing the following procedure, remove the servo control board and top cover. Attention: You need not to remove the tray assembly, and in such case, move it. (1) Remove the two belts on top of the body. Motor (2) Remove the four screws N attaching the motor.
  • Page 28 3.3.12 Taking out the CD in play mode Tray assembly (See Fig.36 ~ 39) Attention: Refer to “Removing the tray assembly”. (1) Remove the top cover upward. (2) Unlock the tray assembly and draw out the tray assembly toward the front. (3) From top of the body, turn the 1 gear clockwise to move the lifter assembly upward.
  • Page 29 Cassette mechanism assembly 3.4.1 Removing the Play/Record & Clear head Cassette mechanism assembly Fly wheelR (See Fig.1~3) (1) While moving the trigger arm on the right side of the head mount in the direction of the arrow, turn the flywheel R counterclockwise until the head mount comes ahead and clicks.
  • Page 30 3.4.2 Removing the head amplifier & mechanism control board (See Fig.4) (1) Turn over the cassette mechanism assembly and remove Main motor assembly the three screws A attaching the head amplifier & mecha- nism control board. Capstan belt (2) Disconnect the flexible wire from connector CN31 on the head amplifier &...
  • Page 31 3.4.4 Removing the flywheel (See Fig.8, 9) • Prior to performing the following procedure, remove the head amplifier & mechanism control board and the main motor as- sembly. (1) From the front side of the cassette mechanism, remove the slit washers attaching the capstan shaft L and R. Pull out the flywheels backward.
  • Page 32 3.4.6 Reattaching the Play/ Record & Clear head (See Fig.11~13) (1) Reattaching the head mount assembly. a) Change front of the direction cover of the head mount assembly to the left (Turn the head forward). b) Fit the bosses O', P', Q', U' and V' on the head mount assembly to the holes P and V, the slots O, U and Q of the mechanism sub assembly (See Fig.11 to 13).
  • Page 33 Speaker section 3.5.1 Removing the Side cover (See Fig.1) (1) Removing the eight screws A on the side of the body. Fig.1 3.5.2 Removing the sub woofer (See Fig.2) • Prior to performing the following procedure, remove the side cover. (1) Remove the six screws B attaching the sub woofer on the side of the body.
  • Page 34 3.5.3 Removing the Front panel (See Fig.3, 4) • Prior to performing the following procedure, remove the side cover. CAUTION: When removing the front panel from the body, do not break or damage them that are glued at the joint a (See Fig.3). Front cover (1) Remove the four screws C attaching the front panel.
  • Page 35 3.5.5 Removing the woofer (See Fig.5) • Prior to performing the following procedure, remove the side cover and the front panel. Woofer (1) Remove the four screws E attaching the woofer. (2) Disconnect the red and black wires from the two terminals on the woofer.

  • Page 36: Adjustment

    SECTION 4 ADJUSTMENT Measurement Instruments Required for Adjustment (1) Low frequency oscillator 4.2.2 Tuner section This oscillator should have a capacity to output 0dBs to FM tuning range: 87.5MHz~108.00MHz 600Ω at an oscillation frequency of 50Hz-20kHz. AM tuning range: 530kHz~1,710kHz (2) Attenuator impedance : 600Ω...
  • Page 37 CD changer mechanism adjustment When a mechanism or a printed circuit board, it is required to write a mechanism position in E2PROM. A write-in procedure step1: Press together the Reverse key (main body) and Clock key of main body at standby condition. step2: Keep this condition then power switch to turn ON.
  • Page 38 Cassette mechanism adjustment Head azinuth Head azinuth adjustment screw adjustment screw (Forward side) (Reverse side) CN31 Head azinuth Head azinuth R/P head, Erase head adjustment screw adjustment screw (Forward side) (Reverse side) Mecha control board VR37 R371 FW100 Motor speed CN33 VR37 C374...
  • Page 39 Mechanism section Adjustment Item Condition Measurement method Ref. value position Head azimuth Test tape (1) Playback the test tape VT703L (8kHz). Maximum output Only adjust at :VT703L (8kHz) (2) Adjust to maximum output level by azimuth ad- changed head Output terminal justment screw for forward side and reverse :Speaker out side.
  • Page 40 4.5.1 Electrical adjustment Adjustment Item Condition Measurement method Ref. value position Recording BIAS • Forward or Reverse (1) Set the test tape(AC-514 TYPE ll and AC-225 AC-225 VR31 adjustment • Test tape TYPE l), then make REC/PAUSE condition. : 4.20µA : AC-514 TYPE ll (2) Connect 100Ω...
  • Page 41 Flow of functional operation untill TOC read (CD) Check Point Slider turns REST Play Key Power ON Confirm that the voltage at the pin5 SW ON. of CN801 is "H"\"L"\"H". Automatic tuning of TE offset Check that the voltage at the Laser ON pin40 of IC651 is + 5V? Detection of disc...
  • Page 42 Maintenance of laser pickup (CD) Replacement of laser pickup (CD) (1) Cleaning the pick up lens Before you replace the pick up, please try to clean the lens Turn off the power switch and, disconnect the with a alcohol soaked cotton swab. power cord from the ac outlet.

  • Page 43: Trouble Shooting

    SECTION 5 TROUBLE SHOOTING This service manual does not describe TROUBLE SHOOTING. (No.22067)1-43...

  • Page 44: Description Of Major Ics

    SECTION 6 DESCRIPTION OF MAJOR ICs A42L2604V-45L (IC671) : DRAM • Pin Layout • Pin function Pin No. Symbol Function 3.3V Power Supply I/O0 I/O3 I/O0 Data Input/Output I/O1 I/O2 I/O1 Data Input/Output I/O2 Write Enable Row Address Strobe No conection Address Inputs (2K product) Address Inputs (2K product) Address Inputs (2K product)
  • Page 45 AN22000A-W (IC601) : RF & SERVO AMP • Terminal layout • Pin function Symbol I/O Function I APC Amp. input terminal O APC Amp. output terminal - Power supply terminal I RF adder Amp. inverting input terminal RFOUT O RF adder Amp. output terminal RFIN I AGC input terminal •...
  • Page 46 6.4 AN4801SB-W (IC801) : 4 channel power of amp system driver • Pin Layout • Pin function Function Function 1 Driver 2 input 15 Driver 3 forward output 2 Power Cut input 16 Driver 4 inverted output (channel 2 mute) 3 Driver 1 input 17 Driver 4 forward output 4 Power Cut input...
  • Page 47 BA033T (IC415) : Regurator • Pin Layout • Pin function Pin No. Function • Block Diagram 1pin Vref 3pin 2pin HA17558A (IC466,IC467,IC491,IC492) : Dual Operational Amp • Pin layout Vout1 Vin(-)1 Vout2 Vin(+)1 Vin(-)2 Vin(+)2 (No.22067)1-47...
  • Page 48 BR24C08FV-X (IC201) : EEPROM • Pin Layout • Pin function Pin name Functions Power Supply Ground(0V) A0,A1 Out of Use. Please Connect to GND. Slave Address Set BR24C08/F/FV Serial Clock Input I/O Slave and Word Address, Serial Data Input, Serial Data Output *1 Write Protect Input *1 An open drain output requires a pull-up resister.
  • Page 49 6.10 CD4094BC (IC33) : Serial to parallel port extension • Pin layout STROBE DATA OUTPUT ENABLE CLOCK • Block diagram DATA 8-STAGE SERIAL SHIFT REGISTER OUTPUT CLOCK 8-BIT STROBE LATHES 3-STATE OUTPUT OUTPUTS ENABLE PARALLEL OUTPUT 6.11TC7SH32FU-X (IC681) : 2 Input Single OR Gate •...
  • Page 50 6.12 HA12238F (IC32) : R/P Equalizer • Pin layout TEST PB-NF1(L) (Open for nomal use) TEST 2 Iraf MUTE PBIN(l) ALC DET Return SW REC Return REC MUTE OFF/ON Return SW PBIN(R) MUTO ON/OFF REC RETURN ON/OFF MUTE TEST 3 TEST 4 PB-NF1(R) ALC ON/OFF...
  • Page 51 • Pin function Pin No. Symbol Function PB-NF2(R) PB EQ feed back PB-EQ(R) NAB output EQOUT(R) EQ output TAI(R) Tape input PBOUT(R) PB output NC pin REC IN(R) REC-EQ input ALC(R) ALC(R) signal out put NC pin REC OUT(R) REC output ALC ON/OFF Mode control input TEST4...
  • Page 52 6.13 KIA7805API (IC304,IC360) : Regulator • Pin layout 1.VCC 2.GND 3.OUTPUT • Block diagram INPUT Q11-1 OUTPUT COMMON (GND) 1-52 (No.22067)
  • Page 53 6.14 KIA7808API (IC303) : Regulator • Pin layout 1.VCC 2.GND 3.OUTPUT • Block diagram INPUT Q11-1 OUTPUT COMMON (GND) (No.22067)1-53...
  • Page 54 6.15 KIA7809API (IC305) : Regulator • Pin layout 1.INPUT 2.COMMON 3.OUTPUT 1 2 3 • Block diagram INPUT Q11-1 OUTPUT COMMON (GND) 1-54 (No.22067)
  • Page 55 6.16 KIA7812API (IC240) : Regulator • Pin layout 1.VCC 2.GND 3.OUTPUT • Block diagram INPUT Q11-1 OUTPUT COMMON (GND) (No.22067)1-55...
  • Page 56 6.17 M61519FP (IC425) : Audio signal proccessor with surround • Pin layout & Block diagram SUR/DPL1 SUR/DPL2 INA1 INA2 -5/0/+3.5dB -5/0/+3.5dB INB1 INB2 INC1 INC2 -6/-3/0/+3dB -6/-3/0/+3dB IND1 IND2 S 1 S 2 RECA/INex1 RECA2/INex2 RECB1 RECB2 Surround or TMI1 TMI2 Dolby Pro Logic Buffer TMO1...
  • Page 57 • Pin function Pin No. Symbol Function Input pin of internal reference(REF=4.5V) Input pin of MIC Mixing INA to IND Input selector RECA/INex,RECB Output pins for REC,RECA can switch mute function and external Input pins (At external input,RECA switchis fixed mute position.) 9-10 TMI,TMO External pins for Mid(sympathetic vibration type)
  • Page 58 6.18 MN101C61GMB1 (IC251) : Driver • Pin Layout • Pin function PinNo. Symbol Function PinNo. Symbol Function P30;/AST_DSP O reset VREF- I GND CDEMP O CD emphasis ANO:3.3VMON I 3.3v monitor P31;TXTD I CD-TEXT data AN1:L.SENSOR I Linier sensor P32;TXTCK O CD-TEXT clock AN2:1.8VMON I 1.8v monitor...

  • Page 59: Block Diagram

    6.19 MN6627911AC1 (IC651) : Micon • Block diagram TXTCK MICROCOMPUTER DVDD TIMING DSL,PLL,VCO TXTD INTERACE DVSS GENERATOR DQSY SUBCODE SBCK INTERFACE SUBC(TXTD/SMCK) NCLDCK(DQSY) FLAG BLKCK ADPVCC EFM DEMODULATION SYNC INTERPOLATION CTRC SPINDLE CIRC ECC DECORDER RFENV SERVO CDROM ECC DRVDD CONVERTOR A9~A0 BUS CONTROL...
  • Page 60 6.20 STK412-420 (IC701) : Power amplifier • Pin Layout • Block Diagram 2 7 5 TR51 TR41 TR13 TR11 TR15 TR12 TR14 TR16 TR17 TR18 TR19 TR20 TR10 15 16 1-60 (No.22067)
  • Page 61 6.21STK432-070 (IC602) : 2ch AF power amp • Pin Layout • Block Diagram TR16 R14 TR15 TR14 TR11 TR12 TR13 TR10 (No.22067)1-61...
  • Page 62 6.22 UPD784215AGF535 (IC810) : Micon • Pin Layout • Pin function PinNo. Symbol Function PinNo. Symbol Function Protector Input DLED1 Disc 1 LED RDS CK RDS Clock STBLED Sound Turbo LED Music Scan Input SWRLED Subwoofer LED Pull Up DLED2 Disc 2 LED +5.0V +5.0V...
  • Page 63 6.23 XC6206P182M-X (IC691) : Regulator • Pin Layout • Pin funciton PIN No. Symbol Function Ground VOUT Output Power Input Block Diagram VOUT Current Limit Voltage Reference (No.22067)1-63...
  • Page 64 VICTOR COMPANY OF JAPAN, LIMITED AV & MULTIMEDIA COMPANY AUDIO/VIDEO SYSTEMS CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.22067) Printed in Japan...

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