JVC UX-M5R Service Manual
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JVC UX-M5R Service Manual

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See also: Instruction Manual
SERVICE MANUAL
MICRO COMPONENT SYSTEM
SP-UXM5
Contents
Safety precautions
Preventing static electricity
Important for laser products
Disassembly method
Adjustment method
Flow of functional operation
until TOC read
UX-M5R
CA-UXM5R
1-2
1-3
1-5
1-6
1-15
1-18
COPYRIGHT
2002 VICTOR COMPANY OF JAPAN, LTD.
B ------------------------------- U.K.
E ----------- Continental Europe
EN ------------ Northern Europe
EV -------------- Eastern Europe
SP-UXM5
Maintenance of laser pickup
Replacement of laser pickup
Trouble shooting
Description of major ICs
Wiring connection
UX-M5R
Area suffix
1-19
1-19
1-20
1-21
1-36
No.21110
Jul. 2002

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Summary of Contents for JVC UX-M5R

  • Page 1 UX-M5R SERVICE MANUAL MICRO COMPONENT SYSTEM UX-M5R Area suffix B ------------------------------- U.K. E ----------- Continental Europe EN ------------ Northern Europe EV -------------- Eastern Europe SP-UXM5 CA-UXM5R SP-UXM5 Contents Safety precautions 1-19 Maintenance of laser pickup Preventing static electricity 1-19 Replacement of laser pickup...
  • Page 2 UX-M5R 1. This design of this product contains special hardware and many circuits and components specially for safety purposes. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Services should be performed by qualified personnel only.
  • Page 3 UX-M5R (U.K only) 1. This design of this product contains special hardware and many circuits and components specially for safety purposes. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer.

  • Page 4: Preventing Static Electricity

    UX-M5R Preventing static electricity 1. Grounding to prevent damage by 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.

  • Page 5: Important For Laser Products

    UX-M5R Important for laser products 5.CAUTION : If safety switches malfunction, the laser is able 1.CLASS 1 LASER PRODUCT to function. 2.DANGER : Invisible laser radiation when open and inter 6.CAUTION : Use of controls, adjustments or performance of lock failed or defeated. Avoid direct exposure to beam.

  • Page 6: Disassembly Method

    UX-M5R Disassembly method <Main body section> Replacement of the fuses and power amplifier IC Replacing the fuses (See Fig. 1.) Remove the left side panel according to its disassembly method (see Figs. 6 and 7). Fuses are located inside the left side panel.

  • Page 7: Removing The Right Side Panel

    UX-M5R Removing the right side panel (See Figs. 4 and 5.) From the right side of the main body, remove the Right side three screws D and three screws E retaining the panel right side panel. Slide the right side panel toward the rear (in the...

  • Page 8: Removing The Top Cover

    UX-M5R Removing the top cover (To be loosened) (See Figs. 8 and 9.) Top cover Remove the left and right side panels. From the back side of the main body, loosen the two screws F retaining the top cover. Rear panel Lift the rear part of the top cover to remove it.
  • Page 9 UX-M5R Removing the CD mechanism assembly (See Figs. 13 to 15.) CN603 CN601 CN701 CN602 Remove the left and right side panels. Remove the top cover. Remove the front panel assembly. Disconnect the wires from the four connectors CN601, CN602, CN603 and CN701 on the CD &...

  • Page 10: Removing The Power Board

    UX-M5R Removing the power board Main board Power transformer Stud CN901 (See Figs. 16 and 17.) Stud Remove the left and right side panels. Tie bands Disconnect the wires from the connector CN901 on the power board. Lug wire Remove the tie bands bundling the wires.
  • Page 11 UX-M5R <Front panel assembly section> Front panel assembly Key board Remove the left and right side panels. Remove the top cover. Remove the front panel assembly. Removing the key board (See Fig. 20.) Remove the ten screws U retaining the key board.

  • Page 12: Cd Mechanism Section

    UX-M5R <CD mechanism section> Remove the left and right side panels. CD & MCU board Stud Remove the top cover. CN702 Remove the front panel assembly. Remove the CD mechanism assembly. Removing the CD & MCU board (See Figs. 1 and 2.)
  • Page 13 UX-M5R Removing the tray motor CD mechanism assembly (See Figs. 4 to 7.) Clamper assembly Claw b Remove the CD & MCU board. On the top of the CD mechanism assembly, open up the claws b and c at the left and right of the...
  • Page 14 UX-M5R Clamper assembly Front panel assembly Replacing the CD pickup unit Claw b (See Figs. 8 to 11.) [Note] Use the following procedure to replace only the CD pickup unit. Remove the left and right side panels (see Figs.4 to 7 of "Main body section" on page 1-7).

  • Page 15: Adjustment Method

    UX-M5R Adjustment method Measuring instructions required for Measuring instruments adjustment Radio section FM 1kHz, 22.5kHz deviation 1. AM signal generator FM STEREO : 1kHz, 67.5kHz deviation 2. FM signal generator pilot signal 7.5kHz 3. Inter mediate frequency sweep generator AM : 1kHz, 30% modulation 4.

  • Page 16: Tuner Section

    UX-M5R Cassette amplifier section Item Measuring condition Check and adjustment procedure Standard value Adjusting part Head azimuth Test tape: Play back the test tape VT702 (8kHz). Output level: Head azimuth adjustment VT702 (8kHz) Adjust the head azimuth adjusting screw so that the...
  • Page 17 UX-M5R Location of adjusting parts Cassette mechanism section CASSETTE MOTOR Tape Speed Adj. Fig.1 Head azimuth adjustment Fig.2 Main board (Forward side) Note: Measuring points (P105, P107 and P201) are located on the reverse side. P105 L102 (FM VT) (AM RF)

  • Page 18: Flow Of Functional Operation Until Toc Read

    UX-M5R Flow of functional operation until TOC read Confirm that the voltage at the pin5 of CN703 is Slider turns REST Power ON "H"/"L"/"H" SW ON. Check that the voltage at the pin10(LD) of Laser ON CN704 is +1.35V. Caution...

  • Page 19: Maintenance Of Laser Pickup

    UX-M5R Maintenance of laser pickup Replacement of laser pickup (1) Cleaning the pick up lens Before you replace the pick up, please try to Turn off the power switch and,disconnect the clean the lens with a alcohol soaked cotton power cord from the AC OUTLET.

  • Page 20: Troubleshooting

    UX-M5R Trouble shooting Circuit Symptom Cause Remedy General No sound Speakers are not connected. Check the speaker connection. Wrong function is selected. Set switch to the proper position. Defective volume control Set the volume control to a proper sound level.

  • Page 21: Description Of Major Ics

    UX-M5R Description of major ICs TC9462F (IC701) : Digital servo single chip processor 1. Terminal layout 2. Pin function Pin No. Symbol Function TEST0 Test mode terminal. Normally, keep at open. Playback speed mode flag output terminal. UHSO UHSO PLAYBACK SPEED...
  • Page 22 UX-M5R Pin No. Symbol Function TMAXS TMAX detection result output terminal. Selected by command bit (TMPS). TMAX TMAX detection result output terminal. Selected by command bit (TMPS). DIFFERENCE RESULT TMAX OUTPUT Longer than fixed freq. "P2VREF" Shorter than fixed freq.
  • Page 23 UX-M5R Pin No. Symbol Function DMOUT This terminal controls IO0 IO3 terminal. At "L" level time, IO0, 1 out feed equalizer signal of 2-state PWM, IO2,3 out disk equalizer signal of 2-state PWM. CKSE Normally, keep at open. DACT DAC test mode terminal. Normally, keep at open.
  • Page 24 UX-M5R TMP87EP26F (IC601) : MCU 1. Terminal layout (Top view) 2.Pin function Pin No. Symbol Function GND (0V) XOUT Resonator connecting pins for high clock(4-8MHz). For inputting external clock, XIN is used and XOUT is opened. RESET Reset signal input or watchdog timer output/address-trap-reset output XTOUT(P22) Resonator connecting pins for slow clock(32.768kHz)
  • Page 25 UX-M5R Pin No. Symbol Function Servo DSP chip enable output BUCK Servo DSP clock output BUS0 Servo DSP command and data I/O BUS1 Servo DSP command and data I/O BUS2 Servo DSP command and data I/O BUS3 Servo DSP command and data I/O SLOUT Tray open/close outputs for current sensor drawer type mechanism.
  • Page 26 UX-M5R AN7312 (IC202) : Dual recording/Playback pre-amplifier circuit with ALC 1. Terminal layout 2. Block diagram Amp. Ripple Filter Amp. 3. Pin function Pin No. Symbol Function ALC time constant ALC time constant by resistance and capacitor ALC input Ch.1 Right channel ALC input Output Ch.1...
  • Page 27 UX-M5R LM1876TF (IC402) : Overture audio power amplifier series 1. Terminal layout 3. Block diagram Standby A GND A VCC A MUTE A LM1876TF 2 3 4 5 6 7 8 9 10 11 1213 14 15 +IN A AMP A...
  • Page 28 UX-M5R TA2092N (IC703) : Power driver 1.Terminal Layout & Block Diagram 2. Pin function Pin No. Symbol Function PW GND1 PW GND4 PW GND1 Power GND OUT(-)1 OUT(-)4 OUT(-)1 Inverted output for CH1 PW VCC1 PW VCC4 PW VCC1 Supply terminal of output stage for CH1...
  • Page 29 UX-M5R TA2104BN (IC101) : 1chip AM/FM, MPX tuner system 1. Terminal layout 2. Pin function Pin No. Symbol Function RFGND FMRF OUT RFGND Ground terminal for RF FMRF IN RF VCC AM LOW CUT AMRF IN FMRF IN Input of FMRF signal...
  • Page 30 UX-M5R TA2153FN (IC704) : RF amplifier for digital servo 1. Terminal layout 2. Block diagram RFN2 RFGC GMAD 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 AGCIN GVSW RFGO RFRPIN RFCT RFRP 2VRO...
  • Page 31 UX-M5R Pin No. Symbol Function RFRP output circuit switching terminal SEL level Bottom detection Peak detection Reference signal (VRO) output terminal RFRP Track count signal output terminal Time constant adjustment terminal for bottom detection RFCT RFRP signal center level output terminal...
  • Page 32 UX-M5R TC9422F (IC301) : System electronic volume 1.Terminal Layout R-IN1 L-IN1 R-IN2 L-IN2 R-IN3 L-IN3 R-IN4 L-IN4 R-SW-OUT L-SW-OUT R-VR-IN L-VR-IN R-B1 L-B1 R-B2 L-B2 R-B3 L-B3 R-TONE-OUT L-TONE-OUT R-T1 L-T1 Vref DATA 2.Block Diagram INPUT SELECTOR INPUT SELECTOR 100k...
  • Page 33 UX-M5R 3.Pin Function Pin No. Symbol Function Ground pin L-IN1 Audio signal input pin (L-ch) L-IN2 Audio signal input pin (L-ch) L-IN3 Audio signal input pin (L-ch) L-IN4 Audio signal input pin (L-ch) L-SW-OUT Audio signal output pin (L-ch) L-VR-IN...
  • Page 34 UX-M5R TC9257F (IC102) : PLL frequency synthesizer 1. Terminal layout FM VT AM VT DATA MUTE TUNER FM OSC AM OSC ST MONO 2. Block diagram FM L 2 MODULUS 4bit SWALLOW POWER ON FM OSC PRESCALER COUNTER RESET RESET...
  • Page 35 UX-M5R BU1923F (IC602) : RDS decoder 1. Terminal layout 2. Block diagram VSS3 100k 120k 100k 8th Switched capacitor filter comparator anti-aliasing filter RCLK Analog power supply QUAL Bi-phase Differential RDATA 57kHz decoder decoder 1187.5Hz Digital RDS/ARI power supply Measurement...

  • Page 36: Wiring Connection

    UX-M5R Wiring connection OW20-41063-00 CN302 Earphone board OW20-41042-26 (Forward side) OW20-42051-36 OW20-51061-11 OW20-41062-26 OW25-61080-01 (Forward side) Tray motor board OW20-41022-25 OW20-41032-17 OW30-00020-06E (30-00020-05G) CN902 1-36...
  • Page 37 UX-M5R < M E M O > 1-37...
  • Page 38 UX-M5R VICTOR COMPANY OF JAPAN, LIMITED AUDIO & COMMUNICATION BUSINESS DIVISION PERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1,1Chome,Ohwatari-machi,maebashi-city,371-8543,Japan No.21110 200207...

  • Page 39: Schematic Diagrams

    UX-M5R SCHEMATIC DIAGRAMS MICRO COMPONENT SYSTEM UX-M5R CD-ROM No.SML200207 Area suffix B ------------------------------- U.K. E ----------- Continental Europe EN ------------ Northern Europe EV -------------- Eastern Europe SP-UXM5 CA-UXM5R SP-UXM5 Contents Block diagram Standard schematic diagrams Printed circuit boards No.21110SCH COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD.
  • Page 40 UX-M5R 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 " "...
  • Page 41 UX-M5R Block diagram Antenna board Main board Speaker L101,L102 IC401,IC402 IC101 TC101 POWER TUNER AMPLIFIER SECTION IC201 Earphone board IC102 HEAD TUNER Earphone jack R/R HEAD JK401 TAPE REC IC202 IC301 IC403 TAPE SOURCE EAR PHONE TAPE PB SECTION SELECT...

  • Page 42: Standard Schematic Diagrams

    UX-M5R UX-M5R Standard schematic diagrams Main section Voltage charts Q101 Q102 Q103 Q104 2SC945P 2SC945P 2SC945P 2SC945P 1.8V 0.7V 0.03V 3.2V 2.95V 0.92V Q105 Q106 Q107 Q108 2SA733P 2SC945P S9018 2SC945P 6.75V 0.7V 0.64V 6.71V 0.05V 0.72V 1.13V 5.95V 6.53V...
  • Page 43 UX-M5R CD & MCU section To A-1 and B-1 on page 2-4 ( To B-5 on page 2-4 ) Voltage charts IC601 : 87EP26F-1J15 PIN1 PIN30 4.93V PIN2 2.38V PIN31 4.02V PIN3 2.03V PIN32 4.57V PIN4 0.02V PIN33 4.7V PIN5 2.22V...
  • Page 44 UX-M5R UX-M5R Key section Power section ( To D-5 on page 2-3 ) ( To B-1 on page 2-3 ) To A-2 To C-1 on page 2-3 on page 2-3 To E-1 and F-1 on page 2-2 Parts are safety assurance parts.

  • Page 45: Printed Circuit Boards

    UX-M5R Printed circuit boards Main board Reverse side...
  • Page 46 UX-M5R UX-M5R CD & MCU board Key board Reverse side Reverse side (Back LED board) (Earphone board) (Tray motor board) (Antenna board) Power board Reverse side...
  • Page 47 UX-M5R < M E M O >...
  • Page 48 UX-M5R VICTOR COMPANY OF JAPAN, LIMITED AUDIO & COMMUNICATION BUSINESS DIVISION PERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1,1Chome,Ohwatari-machi,maebashi-city,371-8543,Japan No.21110SCH 200207...

  • Page 49: Parts List

    UX-M5R PARTS LIST [ UX-M5R ] * All printed circuit boards and its assemblies are not available as service parts. Area suffix B ------------------------------- U.K. E ----------- Continental Europe EN ------------ Northern Europe EV -------------- Eastern Europe - Contents - 3- 3 Exploded view of general assembly and parts list (Block No.M1)
  • Page 50 UX-M5R < M E M O >...

  • Page 51: Exploded View Of General Assembly And Parts List

    UX-M5R Exploded view of general assembly and parts list Block No. Antenna board LED board CD/MCU board Main board Key switch board H.phone j.board Power supply board Connect board...
  • Page 52 UX-M5R UX-M5R Parts list (General assembly) Parts list (General assembly) Block No. M1MM Block No. M1MM Item Parts number Parts name Q'ty Description Area Item Parts number Parts name Q'ty Description Area OW84-10002-02 S.R BUSHING 1 SR-F41 OW53-30000-09 KEY BUTTON...
  • Page 53 UX-M5R Electrical parts list (Main board) Block No. 01 Item Item Parts number Parts number Parts name Parts name Remarks Remarks Area Area Item Parts number Parts name Remarks Area CF101 OW09-50450-00J CERAMIC FILTER SFU450B 450HK2 C160 OW05-03682-06T CHIP CAPACITOR...
  • Page 54 UX-M5R Electrical parts list (Main board) Block No. 01 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area C315 OW06-50475-00 E.CAPACITOR 4.7MF 50V C470 OW05-03223-06T C.CAPACITOR 0.022MF K223 C316 OW06-50475-00 E.CAPACITOR 4.7MF 50V C471 OW05-03223-06T C.CAPACITOR...
  • Page 55 UX-M5R Electrical parts list (Main board) Block No. 01 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area Q205 OW01-00945-16 TRANSISTOR 2SC945P R140 OW07-25561-60K CARBON RESISTOR 560 1/16 561JTP Q206 OW01-08050-04S TRANSISTOR 8050D R141 OW07-25103-60K...
  • Page 56 UX-M5R Electrical parts list (Main board) Block No. 01 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area R251 OW07-25104-60K CARBON RESISTOR 100K 1/16 104JTP R439 OW07-25223-60K CARBON RESISTOR 22K 1/16 223JTP R252 OW07-15103-50T CARBON RESISTOR...
  • Page 57 UX-M5R Electrical parts list (CD&MCU board) Block No. 02 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area CN601 OW20-21100-00 CONNECTOR P=2MM 10PIN C726 OW05-07104-82B C.CAPACITOR 0.1MF 50V CN602 OW20-21080-00 CONNECTOR P=2MM 8PIN C727 OW05-07104-82B C.CAPACITOR...
  • Page 58 UX-M5R Electrical parts list (CD&MCU board) Block No. 02 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area L603 OW09-70102-00C INDUCTOR 100MH R648 OW07-15103-50T CARBON RESISTOR 10K 1/8W 5% L604 OW08-01122-00 FERRITE BEAD RH03509ST-B246 R649...
  • Page 59 UX-M5R Electrical parts list (CD&MCU board) Block No. 02 Item Parts number Parts name Remarks Area R783 OW07-15222-50T CARBON RESISTOR 2.2K 1/8W 5% R784 OW07-15473-50T CARBON RESISTOR 47K 1/8W 5% R785 OW07-15221-50T CARBON RESISTOR 220 1/8W 5% R786 OW07-15683-50T CARBON RESISTOR...
  • Page 60 UX-M5R Electrical parts list (Power board) Block No. 03 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area CN403 OW20-21040-00 CONNECTOR HEAD P=2MM 4PIN RL901 OW16-50105-00 RELAY SWITCH OJ-SH-105LM CN705 OW20-41022-25 CONNECTOR HOUG P=2MM 2PIN...
  • Page 61 UX-M5R Electrical parts list (Key board) Block No. 04 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area CN103 OW20-12020-01K CONNECTOR HEADE P=2.5MM 2PIN SW803 OW16-10101-08S TACT SWITCH EVQJAE05R H=5MM CN104 OW20-42032-17 CONNECTOR HOUG P=2.5MM 3PIN...

  • Page 62: Packing Materials And Accessories Parts List

    UX-M5R Packing materials and accessories parts list Block No. Block No. A1,A2,A8 E,EN Version Version No service No service 3-14...

  • Page 63: Parts List (Accessories)

    UX-M5R Parts list (Packing) Block No. M3MM Item Parts number Parts name Q'ty Description Area OW85-91014-02 POLY BAG 1 INSTRUCTIONS POLY BAG 1 REMOTE UNIT OW85-00025-01A OW86-50000-00 POLY FOAM 1 TOP OW90-00018-00 POLY BAG 1 AC POWER COARD OW85-92224-04 POLY BAG...

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