Jvc-HXZ-30-Service-Manual(1) 电路图 维修手册.pdf

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1、SERVICE MANUAL COPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LIMITED No.MB043 2003/10 COMPACT COMPONENT SYSTEM MB04320039 HX-Z30 TABLE OF CONTENTS 1PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-

2、3 2SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 3DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

3、-6 4ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-36 5TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4、 . . . . 1-41 Area Suffix UW - Brazil,Peru,Mexico RadioFans.CN 收音机爱 好者资料库 1-2 (No.MB043) SPECIFICATION Design & specifications are subject to change without notice. Amplifier section-CA-HXZ30 Output Power (IEC 268-3)SUBWOOFERS135 W per channel, min. RMS, driven into 6 at 63 Hz with no more than 10%

5、total harmonic distortion. MAIN SPEAKERS55 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 SUBWOOFERS6 - 16 MAIN SPEAKERS 6 - 1

6、6 Tuner FM tuning range87.50 MHz - 108.00 MHz AM tuning rangeAt 9 kHz intervals 531 kHz - 1 710 kHz At 10 kHz intervals 530 kHz - 1 710 kHz CD player Disc capacity5 discs Dynamic range87 dB Signal-to-noise ratio90 dB Wow and flutterImmeasurable MP3 recording formatMPEG 1/2 Audio Layer 3 Max. Bit rat

7、e320 kbps Cassette deck Frequency responseNormal (type I) 50 Hz - 14 000 Hz Wow and flutter0.15% (WRMS) General Power requirementAC 110 V/AC 127 V/AC 220 V/AC 230 V - AC 240 V (adjustable with the voltage selector), 50 Hz / 60 Hz Power consumption210 W (in operation) 28 W (on standby) Dimensions (ap

8、prox.)205 mm 370 mm 380.5 mm (W/H/D) Mass (approx.)10.5 kg Speaker section-SP-HXZ30 Type3-way 4-speaker Bass-Reflex Type Twin Hyper Power-Drive Subwoofers and Front Twin Woofer SpeakersSubwoofer20.0 cm (7-7/8 in.) cone 1 Main woofer13.5 cm (5-3/8 in.) cone 2 Tweeter5.0 cm (2 in.) cone 1 Power Handli

9、ng CapacitySubwoofer190 W Main Speaker80 W ImpedanceSubwoofer6 Main Speaker6 Frequency RangeSubwoofer30 Hz - 818 Hz Main Speaker75 Hz - 30 000 Hz Sound Pressure LevelSubwoofer81 dB/Wm Main Speaker88 dB/Wm Dimensions (W H D)247 mm 452 mm 391 mm (9-3/4 in. 17-13/16 in. 15-7/16 in.) Mass10 kg (22.1 lbs

10、) each RadioFans.CN 收音机爱 好者资料库 1-6 (No.MB043) 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 c

11、over. 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 RadioFans.CN 收音机爱 好者资料库 (No.MB043)1-7 3.1.2Removing the CD changer mechanism assembly (See Fig.4, 5) Prior to performing the following procedure, remove the metal

12、 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 th

13、e 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 1-8 (No.MB043) 3.1.3Removing the front panel assembly (See Fig.69) Prior to

14、 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) Disc

15、onnect the wire from connector CN231 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 assembly at the bottom of the body. (7)

16、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 bo

17、ard CN701 Main board CN870 CN44 a Front panel assembly Primary board CN231 Band a Ground wire Band Primary board CN231 Front panel assembly Front panel aeembly D (No.MB043)1-9 3.1.4Removing the tuner pack assembly (See Fig.10, 11) Prior to performing the following procedure, remove the metal cover a

18、nd 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 1-10 (No.MB043) 3.1.5Removing the

19、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 ass

20、embly 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. REFE

21、RENCE: 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 Fan assembly Bridge board CN206 FF F Rear panel Rear panel b Rear panel b (No.MB043)1-11 3.1.6Rmoving the fan assembly (See Fig.17, 18) Prior to performing the

22、following procedure, remove the metal cover, the CD changer mechanism assembly and the rear panel. (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). Fig.17 Fig.18 3.1.7R

23、emoving the main board (See Fig.19) Prior to performing the following procedure, remove the metal cover, the CD changer mechanism assembly and the rear panel. (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 mai

24、n 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 c Fan assembly Band CN870 CN44 CN311 Main board CN217 Band H d 1-12 (No.MB043) 3.1.8.Removing the bridge board / regulator board / heat sink (See Fig.

25、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 wir

26、e 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 release from the base chassis. The bridge board and the

27、regulator 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 regulator board by disconnect connector CN205. (7) Remove the two screws K and two screws L to detach regulator board from heat sink. CAUTIO

28、N: 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 boar

29、d 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 (No.MB043)1-13 3.1.9Removing the power transformer assembly (See Fig 24, 25) Prior to performing the fol

30、lowing 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 atta

31、ching the power transformer 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 Power transformer assembly Primary board N Primary board CN231 CN250 Cord stop

32、per FIxing band Power transformer assembly O O 1-14 (No.MB043) 3.2Front panel assembly Prior to performing the following procedure, remove the metal cover, the CD changer mechanism assembly and the front panel assembly. 3.2.1Removing the cassette mechanism assembly (See Fig.26) (1) Disconnect the ca

33、rd wire from connector CN33 on the head amplifier & mechanism control board. (2) Remove the two screws P, and the two screws Q attaching the cassette mechanism assembly. 3.2.2Removing the headphone board (See Fig.26) (1) Remove the screw R and pull out the headphone board backward. (2) Cut off the b

34、and. Fig.26 3.2.3Rmoving 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 micon board. (2) Remove the fifteen screws S attaching the switch / micon boar

35、d. (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 Head amplifier & mechanism control board CN33 Headphone board P Q QR Band S S S S CN43 Micon board C

36、N840 Switch board Spacer Spacer Switch board CN880 Switch board CN900 Micon board CN43 CN840 (No.MB043)1-15 3.2.4Removing 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).

37、(2) Remove the three screws U attaching the FL board assembly. Fig.30 Fig.31 T Stay bracket (1) U UU FL board assembly 1-16 (No.MB043) 3.2.5Removing the button board (See Fig.3235) Prior to performing the following procedure, remove the switch /micon board. (1) Pull out the preset knob, the volume k

38、nob and the sound mode knob. (2) Remove the two screws V attaching the knob holder. Remove the nut from the front panel. (3) Remove the eleven screws W attaching the button board. Fig.32 Fig.33 Fig.34 Fig.35 Preset knob Volume knob Sound mode knob V Knob holder Nut W W W Volume baord (No.MB043)1-17

39、3.3CD changer mechanism 3.3.1Removing 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

40、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 toward the front. Attention: The tray can be locked if all tray assemblies are attached. (5) From top of the body, move the stopper tab c in the

41、 direction 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.

42、5 Top cover Lifter assembly Rod A aa A a RodTop cover Lifter assembly a Open det lever b Tray assembly (Tray 5) c 1-18 (No.MB043) 3.3.2Removing the servo control board (See Fig.6 9) Caution: Solder the short-circuit point on the pickup before disconnecting the card wire extending from the pickup. If

43、 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 servo control board on the bottom of the body. Disconnect the wire from joint d. (2) Solder the short round point on the flexib

44、le board of the pick up. (3) Remove the four screws B and turn the servo control board as shown in the figure. (4) Disconnect the card wire from connector CN601 on the servo control board.Caution: Unsolder the short-circuit point after reassembling. Caution: When reassembling, twist the wires to be

45、connected to connector CN252 and CN253 twice. 3.3.3Removing the switch board (See Fig.9) (1) Disconnect the wires from connector CN252 and CN253 on the servo control board. (2) Remove the screw C attaching the switch board. (3) Release the wires from the slot e of the switch board. Caution: When rea

46、ssembling, let the wires through the slot e of the switch board and twist them twice. Fig.6 Fig.7 Fig.8 Fig.9 3.3.4Removing the motor board (See Fig.10 , 11) B B B d CN602 CN251 Switch board Servo control board CN252 CN253 Pickup Flexible board Short round Card wire CN601 Servo control board Card wi

47、re CN252 e C Servo control board CN253 Switch board (No.MB043)1-19 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. (2) Unsolder the four sol

48、dered parts on the motor of the motor board. Caution: If removing the motor board with the motor, you should remove the screws attaching the motor from top of the body(Refer to another section). (3) Remove the two screws E attaching the motor board. (4) Remove the spacer fixing the motor board and t

49、ray switch board, and disconnect connector CN2 on the motor board. (5) Disconnect the card wire from connector CN1 on the motor board. Caution: When reconnecting the card wire, let the card wire through the slot g of the motor board and attach it to the bottom of the body using a double tape. Fig.10 Fig.11 DD f CD Module braket f E g CN2 Spacer Card wire Double face tape Motor Soldering point CN1 E 1-20 (No.MB043) 3.3.5Removing the CD tramecha assembly (See Fig.12) Prior to performing the following procedure, remove the servo control