JVC-HXZ10-cs-sm维修电路原理图.pdf

SERVICE MANUAL COPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LIMITED No.MB014 2003/9 COMPACT COMPONENT SYSTEM MB01420037 HX-Z10 TABLE OF CONTENTS 1PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 2SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 3DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 4ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-37 5TROUBLE SHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-41 B - U.K. E - Continental Europe EN - Northern Europe Area Suffix RadioFans.CN 收音机爱 好者资料库 1-2 (No.MB014) SPECIFICATION CA-HXZ10 SP-HXZ10 Design and specifications are subject to change without notice. Amplifier section Output Power (IEC 268-3) Subwoofer125 W per channel, min. RMS, driven into 6 at 63 Hz with no more than 10% total harmonic distortion. Main Speaker35 W per channel, min. RMS, driven into 6 at 1 kHz with no more than 10% total harmonic distortion. Audio input sensitivity/impedance (Measured at 1 kHz, with tape recording signal 300 mV) AUX300 mV/47 k Speakers/impedance Subwoofer6 - 16 Main Speaker 6 - 16 TunerFM tuning range87.50 MHz - 108.00 MHz AM tuning range522 kHz - 1 629 kHz CD playerDisc capacity5 discs Dynamic range87 dB Signal-to-noise ratio90 dB Wow and flutterImmeasurable MP3 recording formatMPEG 1/2 Audio Layer 3 Max. Bit rate320 kbps Cassette deckFrequency response Normal (type I) 50 Hz - 14 000 Hz Wow and flutter0.15% (WRMS) GeneralPower requirementAC 230 V , 50 Hz Power consumption165 W (in operation) 27 W (on standby with Ecology Mode off) 1.2 W (on standby with Ecology Mode on) Dimensions (approx.)205 mm 370 mm 380.5 mm (W/H/D) Mass (approx.)10.5 kg Type3-way 4-speaker Bass-Reflex Type Twin Hyper Power-Drive Subwoofer and Front Twin Woofer SpeakersSubwoofer16.0 cm (6-5/16 in.) cone 1 Main woofer10.0 cm (3-15/16 in.) cone 2 Tweeter5.0 cm (2 in.) cone 1 Power Handling Capacity Subwoofer165 W Main Speaker 75 W ImpedanceSubwoofer6 Main Speaker 6 Frequency RangeSubwoofer30 Hz 325 Hz Main Speaker 70 Hz 32 000 Hz Sound Pressure Level78 dB/Wm Subwoofer86 dB/Wm Main Speaker220 mm 432 mm 357 mm Dimensions (W H D)8-11/16 in. 17-1/16 in. 14-1/16 in.) Mass8.2 kg (18.1 lbs) each RadioFans.CN 收音机爱 好者资料库 (No.MB014)1-5 1.6Preventing 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. Be careful to use proper grounding in the area where repairs are being performed. (1) Ground the workbench Ground the workbench by laying conductive material (such as a conductive sheet) or an iron plate over it before placing the traverse unit (optical pickup) on it. (2) Ground yourself Use an anti-static wrist strap to release any static electricity built up in your body. (3) Handling the optical pickup In order to maintain quality during transport and before installation, both sides of the laser diode on the replacement optical pickup are shorted. After replacement, return the shorted parts to their original condition. (Refer to the text.) Do not use a tester to check the condition of the laser diode in the optical pickup. The testers internal power source can easily destroy the laser diode. 1.7Handling the traverse unit (optical pickup) (1) Do not subject the traverse unit (optical pickup) to strong shocks, as it is a sensitive, complex unit. (2) Cut off the shorted part of the flexible cable using nippers, etc. after replacing the optical pickup. For specific details, refer to the replacement procedure in the text. Remove the anti-static pin when replacing the traverse unit. Be careful not to take too long a time when attaching it to the connector. (3) Handle the flexible cable carefully as it may break when subjected to strong force. (4) I t is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it. 1.8Attention when traverse unit is decomposed *Please refer to Disassembly method in the text for the CD pickup unit. Apply solder to the short land sections before the flexible wire is disconnected from the connector CN231 on the CD servo board. (If the flexible wire is disconnected without applying solder, the CD pickup may be destroyed by static electricity.) In the assembly, be sure to remove solder from the short land sections after connecting the flexible wire. 1M Conductive material (conductive sheet) or iron palate (caption) Anti-static wrist strap Front panel assembly Primary board CN231 Band a (No.MB014)1-7 SECTION 3 DISASSEMBLY 3.1Main body 3.1.1Removing the metal cover (See Fig.13) (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 part of the cover. CAUTION: Do not break the front panel tab fitted to the metal cover. Fig.1 Fig.2 Fig.3 A AA Metal cover Metal cover B Metal cover B 1-8 (No.MB014) 3.1.2Removing the CD changer mechanism assembly (See Fig.4, 5) Prior to performing the following procedure, remove the metal cover. (1) Disconnect the card wire from connector CN651 on the CD servo control board on the right bottom of the CD changer mechanism assembly. (2) Remove the four screws C attaching the CD changer mechanism assembly on top of the body. (3) Remove the CD changer mechanism assembly while lifting the rear part. CAUTION: Do not damage the CD fitting when removing the CD changer mechanism assembly. Fig.4 Fig.5 CD changer mechanism assembly CD servo control board CN651 Front panel assemby CD changer mechanism assembly C C (No.MB014)1-9 3.1.3Removing the front panel assembly (See Fig.69) 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. (2) Disconnect the wire from connector CN701 on the bridge board. (3) Cut the band. (4) Disconnect the wire from connector CN231,CN232 on the primary board on the left side of the body and remove the band fixing the wire. (5) Disconnect the ground wire extending from phones board from bottom chassis. (6) Remove the three screws D attaching the front panel as- sembly at the bottom of the body. (7) Release the two joints a on the lower left and right sides of the front panel assembly using a screwdriver, and remove the front panel assembly toward the front. REFERENCE: Front panel need to be tilt a little bit as release from bottom chassis. Fig.6 Fig.7 Fig.8 Fig.9 Front panel assembly Bridge board CN701 Main board CN870 CN44a Front panel assembly Primary board CN231,CN232 Band a Ground wire Band Primary board CN231,CN232 Front panel assembly Front panel aeembly D 1-10 (No.MB014) 3.1.4Removing the tuner pack assembly (See Fig.10, 11) Prior to performing the following procedure, remove the metal 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. (2) Remove the two screws E on the rear panel on the back of the body. Fig.10 Fig.11 Tuner pack assembly CN1 E Rear panel (No.MB014)1-11 3.1.5Removing the rear panel (See Fig.10, 1216) Prior to performing the following procedure, remove the metal cover and the CD changer mechanism assembly. (1) Remove holding board by remove a plastic rivet and then slide out the holding board as shown in fig. 12. (2) Disconnect the fan wire extending from the fan assembly from connector CN206 on the bridge board. (3) Disconnect the card wire from connector CN1 on the tuner pack. (4) Remove four screws F from rear panel. (5) Release joints b which on right bottom and left bottom of rear panel. The joint can be release by pull outward the side of rear panel. REFERENCE: Fan assembly and tuner pack will come off with rear panel. Fig.12 Fig.13 Fig.14 Fig.15 Fig.16 Plastic rivet Holding board Rear panel Bridge board CN206 Fan assembly FF F Rear panel Rear panel b Rear panel b 1-12 (No.MB014) 3.1.6Rmoving 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- el. (1) Cut the band with for fan wire holder. (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). Fig.17 Fig.18 3.1.7Removing the main board (See Fig.19) Prior to performing the following procedure, remove the metal cover, the CD changer mechanism assembly and the rear pan- el. (1) Cut off the band. (2) Disconnect the card wires from connector CN44 and CN870 on the main board. (3) Remove the screw H attaching the main board. (4) Disconnect connector CN217 and CN311 on the main board outward and release from the base chassis (joint d) upward. Fig.19 G Rear panel c cFan assembly Band CN870 CN44 CN311 Main board CN217 Band H d (No.MB014)1-13 3.1.8Removing the bridge board / regulator board / heat sink (See Fig.2023) Prior to performing the following procedure, remove the metal cover, the CD changer mechanism assembly, the rear panel and main board. (1) Disconnect the wire from connector CN212, CN213 and CN214 on the primary board respectively and remove the band attaching the wires. (2) Disconnect the wire from connector CN701 on the bridge board. (3) Disconnect the ground wire extending from the bridge board from bottom chassis (4) Remove the two screws I attaching the heat sink bracket and move the heat sink in the direction of the arrow to re- lease from the base chassis. The bridge board and the reg- ulator board come off with the heat sink. (5) Remove the two screws J attaching the heat sink bracket. (6) Remove the two screws M, detach bridge board from reg- ulator board by disconnect connector CN205. (7) Remove the two screws K and two screws L to detach regulator board from heat sink. CAUTION: As assembly back the regulator board and bridge board to heat sink. Regulator board must be assembly to heat sink first and screws K and L must be screwed before bridge board attach to regulator board. Fig.20 Fig.21 Fig.22 Fig.23 Band CN212 Primary board CN213 CN214 CN701 Bridge board Bridge board Ground wire Regulator board Heat sink I IHeat sink bracket J Heat sink Bridge board Regulator board Heat sink bracket Heat sink bracket Heat sink Regulator board Bridge board CN215 CN205 L K ML 1-14 (No.MB014) 3.1.9Removing the power transformer assembly (See Fig 24, 25) Prior to performing the following procedure, remove the metal cover, the CD changer mechanism assembly, the rear panel, the main board and the bridge board / regulator board. (1) Remove the screw N attaching the primary board. (2) Disconnect the wire from connector CN231 on the primary board. (3) Remove the four screws O attaching the power transform- er assembly. (4) Detach the cord stopper from the base chassis upward. REFERENCE: When disconnecting the power cord from connector CN250 on the primary board, remove the fixing band. Fig.24 Fig.25 3.1.10 Front panel assembly Prior to performing the following procedure, remove the metal cover, the CD changer mechanism assembly and the front panel assembly. 3.1.11 Removing the cassette mechanism assembly (See Fig.26) (1) Disconnect the card wire from connector CN33 on the head amplifier & mechanism control board. (2) Remove the two screws P, and the two screws Q attach- ing the cassette mechanism assembly. 3.1.12 Removing the headphone board (See Fig.26) (1) Remove the screw R and pull out the headphone board backward. (2) Cut off the band. Fig.26 Power transformer assembly Primary board N Primary board CN231 CN250 Cord stopper FIxing band Power transformer assembly O O Head amplifier & mechanism control board CN33 Headphone board P Q QR Band (No.MB014)1-15 3.1.13 Rmoving the switch / micon board (See Fig.2729) Prior to performing the following procedure, disconnect the card wire from CN43 on the micon board. (1) Disconnect the card wire from connector CN840 on the mi- con board. (2) Remove the fifteen screws S attaching the switch / micon board. (3) Remove the spacer fixing the wire. (4) Move the switch /micon board in the direction of the arrow to disconnect the wire from connector CN880 and CN900 on the micon board. Fig.27 Fig.28 Fig.29 S S S S CN43 Micon board CN840 Switch board Spacer Spacer Switch board CN880 Switch board CN900 Micon board CN43 CN840 1-16 (No.MB014) 3.1.14 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. Fig.30 Fig.31 T Stay bracket (1) U UU FL board assembly (No.MB014)1-17 3.1.15 Removing the button board (See Fig.3234) Prior to performing the following procedure, remove the switch /micon board. (1) Pull out the preset knob, the volume knob and the sound mode knob. (2) Remove the two screws V attaching the knob holder. Re- move the nut from the front panel. (3) Remove the eleven screws W attaching the button board. Fig.32 Fig.33 Fig.34 Preset knob Volume knob Sound mode knob V Knob holder Nut 1-18 (No.MB014) 3.2CD changer mechanism 3.2.1Removing the tray assembly (See Fig.1 5) (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. (3) Remove the open det lever on the left side of the body. (4) Push part b of the slide (R) assembly on the right side of the body to unlock the tray assembly. Draw out the trays to- ward the front. Attention: The tray can be locked if all tray assemblies are at- tached. (5) From top of the body, move the stopper tab c in the direc- tion of the arrow and release. Pull out the tray assemblies from the body. Caution: Remove the tray assembly from top tray 5 in order. Attention: When reattaching the sub tray of the tray assembly, or when removing the CD remaining inside, refer to another section. Fig.1 Fig.2 Fig.3 Fig.4 Fig.5 Top cover Lifter assembly Rod A aa A a RodTop cover Lifter assembly a Open det lever b Tray assembly (Tray 5) c (No.MB014)1-19 3.2.2Remo