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JVC UX-H35 Service Manual
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JVC UX-H35 Service Manual

JVC UX-H35 Service Manual

Micro component system
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SERVICE MANUAL
MICRO COMPONENT SYSTEM
9
2003
MB053
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LIMITED
UX-H35
MICRO COMPONENT SYSTEM

TABLE OF CONTENTS

Area Suffix
A ------------ Australia
No.MB053
2003/9

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  • Page 1: Table Of Contents

    SERVICE MANUAL MICRO COMPONENT SYSTEM MB053 2003 UX-H35 MICRO COMPONENT SYSTEM Area Suffix A ------------ Australia TABLE OF CONTENTS PRECAUTION............... . . 1-3 SPECIFIC SERVICE INSTRUCTIONS .
  • Page 2 SPECIFICATION 20 W (10 W + 10 W) at 4 Ω (10% THD) Amplifier Output Power Audio input sensitivity/Impedance (at 1 kHz) AUX 500 mV/48.75 kΩ 4 Ω Speakers/Impedance Tuner FM tuning range 87.50 MHz - 108.00 MHz AM tuning range 522 kHz - 1 629 kHz CD player Dynamic range...

  • Page 3: Precaution

    SECTION 1 PRECAUTION 1.1 Safety Precautions (1) This design of this product contains special hardware and exposed metal part and a known good earth ground. many circuits and components specially for safety purposes. Measure the AC voltage across the resistor with the AC For continued protection, no changes should be made to the voltmeter.
  • Page 4 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. 1.5.1 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 5 Important for laser products (1) CLASS 1 LASER PRODUCT (5) CAUTION : If safety switches malfunction, the laser is able (2) DANGER : Invisible laser radiation when open and inter to function. lock failed or defeated. Avoid direct exposure to beam. (6) CAUTION : Use of controls, adjustments or performance of (3) CAUTION : There are no serviceable parts inside the procedures other than those specified herein may result in...

  • Page 6: Specific Service Instructions

    SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. 1-6 (No.MB053)

  • Page 7: Disassembly

    SECTION 3 DISASSEMBLY Main body 3.1.1 Removing the rear panel (See Fig.1,2) (1) From behind the body, remove the eight screws A attach- ing the rear panel. (2) Turing the body upside down, remove the two screws B at- taching the rear panel, and remove. Fig.1 Rear panel Front panel assembly...
  • Page 8 3.1.2 Removning the side panel (L) and (R) (See Fig.2~5) • Prior to performing the following procedure, remove the rear panel. (1) Turning the body upside down, remove the two screws C attaching the front panel assembly. (2) Turning the body initial position, open the CD door while pressing the upper OPEN button.
  • Page 9 3.1.3 Removing the CD player assembly (See Fig.6,7) • Prior to performing the following procedure, remove the rear CD player assembly CD servo control board panel and the left and right side panels. CN604 (1) Disconnect the card wires from the two connectors CN603 CN603 CN604...
  • Page 10 3.1.4 Removing the power amplifier board and heat sink (See Fig.8~10) • Prior to performing the following procedure, remove the rear panel, the left and right side panels, and the CD player assem- Heat sink bly. (1) Remove the five screws E and F attaching the heat sink. (2) Disconnect the wire from connector CN901 on the power...
  • Page 11 3.1.5 Removing the tuner board (See Fig.11) • Prior to performing the following procedure, remove the rear panel, the left and right side panels, and the CD player assem- bly. (1) Remove the screw H attaching the tuner board from the right side of the body.
  • Page 12 3.1.7 Remove the power transformer and power supply board (See Fig.14,15) • Prior to performing the following procedure, remove the rear Jack holder panel, the left and right side panels, the CD player assembly, the power amplifier board and the tuner board. (1) Remove the screw I attaching the jack holder and release joint e, and then remove jack holder.
  • Page 13 3.1.8 Remove the cassette mechanism assembly (See Fig.16,17) • Prior to performing the following procedure, remove the front Front panel assembly panel assembly. (1) Disconnect the card wire from the connector CN713 on the LCD system CPU board. (2) Remove the four screws K and L attaching the cassette mechanism assembly, and remove.
  • Page 14 3.1.9 Remove the LCD system CPU board (See Fig.18) (1) Disconnect the wire from the connector CN716 on the LCD system CPU board. (2) Release the two joints f and pull out the LCD system CPU board. CN716 LCD system CPU board Fig.18 3.1.10 Removing the operating switch board (See Fig.19,20)
  • Page 15 3.2 Cassette mechanism assembly Cassette mechanism assembly Fly wheelR 3.2.1 Removing the Play/Record & Clear head (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 16 3.2.2 Removing the head amplifier & mechanism control board (See Fig.4) (1) Turn over the cassette mechanism assembly and remove the three screws A attaching the head amplifier & mecha- Head amplifier & mecha control board nism control board. (2) Disconnect the flexible wire from connector CN31 on the CN32...
  • Page 17 3.2.4 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 18 3.2.6 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 19: 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 Voltage applied to tuner +B : DC5.7V 600Ω at an oscillation frequency of 50Hz-20kHz. VT : DC 12V (2) Attenuator impedance : 600Ω...
  • Page 20 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 21 4.3.1 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 :VT703L (8kHz) (2) Adjust to maximum output level by azi- at changed Output terminal muth adjustment screw for forward side head :Speaker out...
  • Page 22 4.3.3 Electrical response confirmation Adjustment Item Condition Measurement method Ref. value position Recording bias • Forward or Reverse (1) Change BIAS1 and 2, confirm the fre- 100 kHz ± 6 kHz current • Test tape quency should be change. : TYPE ll (AC-514) (2) Set the test tape (AC-514 TYPE ll), then •...

  • Page 23: Troubleshooting

    SECTION 5 TROUBLESHOOTING 5.1 Flow of functional operation until TOC read (CD) Check Point Slider turns REST Power ON Power Key Check that the voltage at the pin4 SW ON. of CN601 is 0V (a moment)? Automatic tuning of TE offset Check that the voltage at the Laser ON pin2 of IC601 is 0V?
  • Page 24 Maintenance of laser pickup (CD) 5.3 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 power cord from the ac outlet. with a alcohol soaked cotton swab.
  • Page 25 (No.MB053)1-25...
  • Page 26 VICTOR COMPANY OF JAPAN, LIMITED AV & MULTIMEDIA COMPANY AUDIO/VIDEO SYSTEMS CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.MB053) Printed in Japan...

  • Page 27: Schematic Diagrams

    SCHEMATIC DIAGRAMS MICRO COMPONENT SYSTEM UX-H35 CD-ROM No.SML200309 MICRO COMPONENT SYSTEM Area Suffix A ------------ Australia Contents Block diagram --------------------------------------------------------------------- 2-1 Standard schematic diagrams ------------------------------------------------ 2-2 Printed circuit boards ------------------------------------------------------ 2-8~10 No.MB053SCH COPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LTD. 2003/9...
  • Page 28 In regard with component parts appearing on the silk-screen printed side (parts side) of the PWB diagrams, the parts that are printed over with black such as the resistor ( diode ( ) and ICP ( ) or identified by the " " mark nearby are critical for safety. (This regulation does not correspond to J and C version.)

  • Page 29: Block Diagram

    Block diagram IFOUT SDATA/VOLDA MUTE/IFOUT OSCOUT CD DOOR S7500 to S7512 LCD LAMP LOUT DATA SCK/VOLCK FM/AM,SDIN FM RF ROUT SWITCH KEY MATRIX FTUNERSW ST/MONO TUNER FM/AM FM DET AMOSC RST/CLOSE KEY0,KEY1 SWITCH AMRF AM DET COM0 to COM3 STEREO S0 to S39 AM RF AMOSC...
  • Page 30 Standard schematic diagrams Primary section D905 6A10E2 6A10E2 6A10E2 F903 D905 F903 D905 T6.3AL F903 6.3A/125V T6.3AL J902 J902 J902 QNA0016-001 QNA0016-001 QNA0016-001 L901 F901 QQR1321-001 F901 L901 F901 T500mAL T500mAL 1A/125V J901 J901 J901 QNC0092-001 QNC0091-001 QNC0091-001 6A10E2 6A10E2 D905 D905 F903...
  • Page 31 Q9002 2SC2785/FE/-T C9003 R9013 220P R9015 4.7K Q9006 2SC2785/FE/-T R1803 2.7K R2803 2.7K Q9070 2SC3576-JVC-T C2959 K9100 QQR0621-001Z C9070 CN301 10/25 CN305 QGB1214J1-20S QGF1205F1-10 Parts are safety assurance parts. When replacing those parts make sure to use the specified one.
  • Page 32 Micon / LCD & Key control section BL701 QLL0147-001 QSW0122-001 S7550 BL702 R7500 R7501 R7502 R7503 R7504 R7505 R7506 1.2K 1.8K 2.2K 2.7K DI701 RST/CLOSE QLL0147-001 QLD0260-001 KEY0 KEY1 FW701 CN716 QGF1205C1-04 FW701 QUM022-12Z3Z3 R7507 R7508 R7509 R7510 R7511 R7512 R7513 R7514 1.8K...
  • Page 33 CD servo control section R605 TBAL TP603 R606 680k FBAL 180k C691 R607 R609 220K 150p C619 C692 C620 C669 470/6.3 560P 100P 150p BTLM C624 C693 C655 C653 0.022/25 BLKCK 0.022 R635 C625 150p QCZ0202-155Z C694 100p SUBQ 0.0022 390k VDET SQCK...
  • Page 34 MSI-5U2LWA R371 R108 RECL R106 R302 R110 2.2K CN42 Q342 QGF1205F1-09 KRA111M-T C104 VR37 C102 QVP0077-103Z 0.01 220p Q343 R306 2SC3576-JVC-T 4.7K R336 Q344 R344 C340 2SC3576-JVC-T 47/50V CN32 4.7K QGF1205F1-09 R339 C341 Q345 R345 100K C304 1/50V 2SC3576-JVC-T 10/16V R304 4.7K...
  • Page 35 Tuner section QAU0160-001 0.0039 0.47/50 0.0022 0.047 22/16 1/50 0.047 470P 22/16 0.022 3.9K 10/16 0.001 10/16 10/16 1SS133-T2 100/16 0.001 1SS133-T2 0.027 0.027 3.3K QAX0420-001 LC72136N 1SS133-T2 LA1838 1SS133-T2 QNB0153-001 QAX0458-001Z 5.6K 10/16 DTA114YKA-X QQR0793-001 150P 150P 1/50 150P 0.022 QAX0610-001Z QQR0796-003...
  • Page 36 Printed circuit boards Trans board K602 R668 R659 C652 X651 C677 R669 C651 C901 R671 C668 C696 K601 C695 R672 D901 C665 IH603 C902 C655 C663 C669 D902 R602 R667 R603 R656 C904 R654 R653 R652 D904 R651 C903 Q602 C602 D903 C608...
  • Page 37 Micon board PP701 FW701 R7500 FW701 C7008 D7007 D7001 R7052 IC932 D7006 R7051 D7005 D7004 R7017 C7009 R7038 D7003 C7010 R7053 D7008 C7011 R7054 R7055 R7028 R7026 Q7003 R7025 R7506 C7015 C7013 C7500 R7071 R7508 R7072 R7019 R7008 K7003 R7061 L7003 CN716 R7006...
  • Page 38 Cassette (switch) board VR37 R371 FW100 CN33 C374 R310 CN34 R105 R313 CN32 R342 C105 C107 Q302 C205 R372 Q375 C310 Q372 Q376 R205 R338 C314 C313 R375 C371 R376 R337 R335 L301 R305 C331 R353 C300 R327 C304 R339 C213 IC32 R304...
  • Page 39 < M E M O >...
  • Page 40 VICTOR COMPANY OF JAPAN, LIMITED AV & MULTIMEDIA COMPANY AUDIO/VIDEO SYSTEMS CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan Printed in Japan (No.MB053SCH)

  • Page 41: Parts List

    PARTS LIST [ UX-H35 ] * All printed circuit boards and its assemblies are not available as service parts. Area suffix A ------------------------- Australia - Contents - 3- 2 Exploded view of general assembly and parts list (Block No.M1) 3- 5 Speaker assembly and parts list (Block No.M2)

  • Page 42: Exploded View Of General Assembly And Parts List (Block No.m1)

    Exploded view of general assembly and parts list Block No. LCD s light b CD servo control baord 14 26...
  • Page 43 Power ampliifier board LCD system light board LCD system CPU board Power supply board Tuner board Head amplifier & mechanism control board...
  • Page 44 Description Local QYSBSF3010Z TAP SCREW 3mm x 10mm QYSSST3008Z SCREW 3mm x 8mm(x4) GV10127-004A FRONT PANEL GV30406-014A NAME PLATE GV40077-002A JVC BADGE LV41843-001A LASER CAUTION GV20202-002A PUSH BUTTON QQT0396-004 POWER TRANSF T 901 QYSBSF2608Z TAPPING SCREW 2.6mm x 8mm(x2) QMF51W2-R50-J8 FUSE F901 0.5A AC250V...

  • Page 45: Speaker Assembly And Parts List (Block No.m2)

    Speaker assembly and parts list Block No. Speaker Block No. [M][2][M][M] Symbol No. Part No. Part Name Description Local J201XH3500B10 CLOTH FRAME (x2) J200XH3000B00 FRONT PANEL (x2) J282XH3000B00 LATCH (x8) 21302UXP510 JVC MARK (x2) 305J0XH300800 WOOFER (x2) 411B84012AB1 SCREW (x8) 6000XH35U00 RATNIG LABEL (x2)

  • Page 46: Cassette Mechanism Assembly And Parts List (Block No.mp)

    Cassette mechanism assembly and parts list Block No. SLC-S302M Grease = EM-30L =UD-24 =LEN-320M =MOBIL-1 The lower side Switch board Head amplifier board...
  • Page 47 Cassette mechanism Block No. [M][P][M][M] Symbol No. Part No. Part Name Description Local VKS1165-00L CHASSIS B. ASSY VKS2274-002 REEL GEAR (x2) VKW5286-002 B.T. SPRING (x2) VKS5559-001 PLAY IDLE GEAR VKS5595-002 BLIND VKS5560-003 FR IDLE GEAR LV42013-001A EARTH SPRING SLC-RP4SVM HEAD MOUNT ASSY VKY3149-002 CASSETTE SP.

  • Page 48: Electrical Parts List (Block No.01~04)

    390pF 50V K C636 QCBB1HK-391Y C CAPACITOR 390pF 50V K Q601 KTA1271/OY/-T TRANSISTOR C638 QFVF1HJ-104Z MF CAPACITOR 0.1uF 50V J Q1150 2SC3576-JVC-T TRANSISTOR C641 QCZ0313-105Z C CAPACITOR 1uF 25V Z Q1400 2SC2785/FE/-T TRANSISTOR C642 QCBB1HK-103Y C CAPACITOR 0.01uF 50V K...
  • Page 49 Symbol No. Part No. Part Name Description Local Symbol No. Part No. Part Name Description Local C2503 QTE1V06-106Z E CAPACITOR 10uF 35V R654 QRE141J-101Y C RESISTOR 100Ω 1/4W J C2504 QFVF1HJ-104Z MF CAPACITOR 0.1uF 50V J R656 QRE141J-102Y C RESISTOR 1kΩ...
  • Page 50 Symbol No. Part No. Part Name Description Local Symbol No. Part No. Part Name Description Local R9001 QRE141J-1R0Y C RESISTOR 1Ω 1/4W J IC932 KIA78S06P-T R9002 QRE141J-1R0Y C RESISTOR 1Ω 1/4W J R9003 QRE141J-1R0Y C RESISTOR 1Ω 1/4W J 2SC1623/5-6/-X TRANSISTOR R9004 QRE141J-471Y...
  • Page 51 Symbol No. Part No. Part Name Description Local Symbol No. Part No. Part Name Description Local NCB31CK-473X C CAPACITOR 0.047uF 16V K R7004 NRSA63J-222X MG RESISTOR 2.2kΩ 1/16W J NCB31HK-102X C CAPACITOR 1000pF 50V K R7005 NRSA63J-222X MG RESISTOR 2.2kΩ 1/16W J NCB31HK-681X C CAPACITOR 680pF 50V K...
  • Page 52 2SC2001/K/-T TRANSISTOR L7002 QQL231K-470Y COIL 47uH K Q305 2SC2001/K/-T TRANSISTOR L7003 QQL231K-4R7Y COIL 4.7uH K Q342 KRA111M-T DIGI TRANSISTOR QQR0793-001 Q343 2SC3576-JVC-T TRANSISTOR Q344 2SC3576-JVC-T TRANSISTOR BL701 QLL0147-001 LAMP Q345 2SC3576-JVC-T TRANSISTOR BL702 QLL0147-001 LAMP Q346 2SC3576-JVC-T TRANSISTOR QAX0420-001 C FILTER 10.700MHz...
  • Page 53 Symbol No. Part No. Part Name Description Local R206 QRE141J-113Y C RESISTOR 11kΩ 1/4W J R207 QRE141J-912Y C RESISTOR 9.1kΩ 1/4W J R208 QRE141J-273Y C RESISTOR 27kΩ 1/4W J R210 QRE141J-103Y C RESISTOR 10kΩ 1/4W J R216 QRE141J-102Y C RESISTOR 1kΩ...

  • Page 54: Packing Materials And Accessories Parts List (Block No.m3)

    Packing materials and accessories parts list Block No. A2,A3,A4, A5,A6,A7 3-14...
  • Page 55 Packing and accessories Block No. [M][3][M][M] Symbol No. Part No. Part Name Description Local GVT0101-005A INST BOOK QAL0457-001 ANT.WIRE QAL0014-001 AM LOOP ANT QMPH010-183-JD POWER CORD(AST) 1.83m BLACK RM-SUXH35U REMOCON UNIT --------------------- BATTERY (x2) BT-56012-1 WARRANTY CARD UXH35K-SPBOX SPEAKER BOX (x2) GV30426-005A CARTON ASSY.

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