JVC UX-J60 Service Manual Download Page 33

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UX-J60

(No.22029)1-33

4.10 LA6541-X (IC801) : Servo driver

• Pin layout & Block diagram

• Pin function

Gnd

Level
shift

B T L
driver

Level
shift

B T L
driver

11k

ohm

11k

ohm

Level
shift

B T L
driver

Level
shift

Regulator

RESET

11k

ohm

11k

ohm

- +

Vcc

Vref

Vin4

Vg4

Vo8

Vo7

Vcc

Mute

Vin1

Vg1

Vo1

Vo2

Vo3

Vo4

Vg2

Vin2

Reg
out

Reg
In

Vo6

Vo5

Vg3

Vin3

Res

Pin No.

Symbol

Description

Vcc

Power supply (Shorted to pin 24)

Mute

All BTL amplifier outputs ON/OFF

Vin1

BTL AMP 1 input pin

Vg1

BTL AMP 1 input pin (For gain adjustment)

Vo1

BTL AMP 1 input pin (Non inverting side)

Vo2

BTL AMP 1 input pin (Inverting side)

Vo3

BTL AMP 2 input pin (Inverting side)

Vo4

BTL AMP 2 input pin (Non inverting side)

Vg2

BTL AMP 2 input pin (For gain adjustment)

Vin2

BTL AMP 2 input pin

Reg Out External transistor collector (PNP) connection. 5V power supply output

Reg In

External transistor (PNP) base connection

Res

Reset output

Reset output delay time setting (Capacitor connected externally)

Vin3

BTL AMP 3 input pin

Vg3

BTL AMP 3 input pin (For gain adjustment)

Vo5

BTL AMP 3 output pin (Non inverting side)

Vo6

BTL AMP 3 output pin (Inverting side)

Vo7

BTL AMP 4 output pin (Inverting side)

Vo8

BTL AMP 4 output pin (Non inverting side)

Vg4

BTL AMP 4 output pin (For gain adjustment)

Vin4

BTL AMP 4 output pin

Vref

Level shift circuit's reference voltage application

Vcc

Power supply (Shorted to pin 1)

Summary of Contents for UX-J60

Page 1: ... MICRO COMPONENT SYSTEM 22029 2003 03 UX J60 TABLE OF CONTENTS 1 Important Safety Precautions 1 2 2 Disassembly method 1 6 3 Adjustment 1 19 4 Description of major ICs 1 25 Area Suffix B U K E Continental Europe EN Northern Europe SP UXJ60 CA UXJ60 RM SUXJ60R REMOTE CONTROL SP UXJ60 ...

Page 2: ...xposed metal parts of the product antenna terminals knobs metal cabinet screw heads headphone jack control shafts etc to be sure the product is safe to operate without danger of electrical shock Do not use a line isolation transformer during this check Plug the AC line cord directly into the AC outlet Using a Leakage Current Tester measure the leakage current from each exposed metal parts of the c...

Page 3: ...he same safety characteristics as the recommended replacement parts shown in the Parts List of the Service Manual and may create shock fire or other hazards 4 The leads in the products are routed and dressed with ties clamps tubings barriers and the like to be separated from live parts high temperature parts moving parts and or sharp edges for the prevention of electric shock and fire hazard When ...

Page 4: ...heck the condition of the laser diode in the optical pickup The tester s internal power source can easily destroy the laser diode 1 7 Handling 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 ...

Page 5: ...N If safety switches malfunction the laser is able to function 6 CAUTION Use of controls adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure CAUTION Please use enough caution not to see the beam directly or touch it in case of anadjustment or operation check VARNING Osynlig laserstrålning är denna del är öppnad och spårren är urkopp...

Page 6: ...d 2 1 Main body 2 1 1 Removing the metal cover See Fig 1 3 1 Remove the six screws A on the back of the main body 2 Remove the two screws B on each side and remove the metal cover in the direction of the arrow Fig 1 Fig 2 Fig 3 Metal cover A A A B B ...

Page 7: ... metal cover and the rear cover 1 Remove the eleven screws D attaching the rear panel Re lease the two joints a on the rear side and the two joints b on each side 2 Remove the two screws E attaching the fan bracket and release the two joints c on the rear panel and remove 3 Disconnect the wire from the connector CN916 on the main board Fig 5 Fig 6 C Rear cover Rear panel Fan assembly D D D D D E E...

Page 8: ... 2 1 5 Removing the CD R RW mechanism assembly See Fig 8 Prior to performing the following procedure remove the metal cover the rear cover the rear panel and the tuner board 1 Disconnect the card wire from the connector CN903 CN902 and CN904 on the main board 2 Pull the joint d in the direction of the arrow and remove the CD R RW mechanism assembly backward while releasing the joint e Fig 8 Tuner ...

Page 9: ...sembly and then remove the main board the heat sink board the speaker jack board from the body 4 Release the two joints f of the main board and disconnect the connector CN944 and CN945 of the heat sink board from the connector CN912 and CN911 of the main board respectively and disconnect the flat wire from the connec tor CN914 and CN915 and remove 5 Remove the screw I attaching the speaker jack bo...

Page 10: ...he four screws J Fig 13 2 1 8 Removing the front panel assembly See Fig 14 15 Prior to performing the following procedure remove the metal cover 1 Remove the two screws K on each side Release the two joints g on the both sides and lift the front panel assembly to release the joint h 2 Disconnect the card wire from the connector CN900 CN901 CN930 CN931 and CN932 on the main board Fig 14 Fig 15 Powe...

Page 11: ...t the flat wire from the connector CN913 on the main board Fig 16 2 1 10 Removing the cassette mechanism assembly See Fig 17 Prior to performing the following procedure remove the metal cover and the front panel assembly 1 Remove the four screws L attaching the cassette mecha nism assembly Fig 17 Phones board Mian board CN913 L L Cassette mechanism assembly ...

Page 12: ...e the switch board in the direction of the arrow to dis connect the wire from the connector CN762 and the card wire from the connector CN761 2 1 12 Remove the LCD board assembly See Fig 18 Prior to performing the following procedure remove the metal cover and the front panel assembly 1 Remove the four screws N attaching the LCD board as sembly Fig 18 Fig 19 M N N M Switch board LCD board assembly ...

Page 13: ... cover the front assembly the switch board and the LCD board assembly 1 Remove the three screws O attaching the control panel as sembly 2 Release the three joints i and open the cassette door while pressing the cassette door and then remove the con trol panel assembly in the direction of the arrow Fig 20 Fig 21 O O Cotrol panel assembly i ...

Page 14: ... procedure remove the metal cover the front panel assembly the switch board the LCD board assembly and the control panel assembly 1 Pull out the volume knob 2 Remove the seven screws P attaching the control board Fig 22 Fig 23 Control panel assembly Volume knob P P P Control board Control panel assembly ...

Page 15: ...ckwise as you turn the flywheel R counterclockwise See Fig 2 and 3 3 Disconnect the flexible wire from connector CN31 on the head amplifier mechanism control board 4 Remove the spring from the back of the head 5 Loosen the azimuth screw for reversing attaching the head 6 Remove the head on the front side of the head mount Fig 1 Fig 2 Fig 3 Cassette mechanism assembly Fly wheelR Trigger arm Head mo...

Page 16: ...reel pulse board REFERENCE If necessary unsolder the 4 pin wire soldered to the main motor 2 2 3 Removing the main motor See Fig 4 7 1 Remove the two screws B 2 Half raise the motor and remove the capstan belt from the motor pulley ATTENTION Be careful to keep the capstan belt from grease When reas sembling refer to Fig 6 and 7 for attaching the capstan belt Fig 4 Fig 5 Fig 6 Fig 7 Head amplifier ...

Page 17: ...ckward Fig 8 Fig 9 2 2 5 Removing the reel pulse board and solenoid See Fig 10 Prior to performing the following procedure remove the head amplifier mechanism control board 1 Remove the screw C 2 Release the tab a b c d and e retaining the reel pulse board 3 Release the tab f and g attaching the solenoid on the reel pulse board 4 The reel pulse board and the solenoid come off Fig 10 Fly wheel R Fl...

Page 18: ...to the left to disengage the gear If the gear can not be disengaged easily push up the boss Q slightly and raise the rear side of the head mounts slightly to return the direction lever to the reversing side 2 Tighten the azimuth screw for reversing 3 Reattach the spring from the back of the Play Record Clear head 4 Connect the flexible wire to connector CN31 on the head amplifier mechanism control...

Page 19: ...onic voltmeter for two channels therefore the earth should be connected particularly carefully 7 In the case of BTL connection amp the minus terminal of speaker is not for earthing Therefore be sure not to connect any other earth terminal to this terminal This system is of an BTL system 8 For connecting a dummy resistor when measuring the output use the wire with a greater code size 9 Whenever any...

Page 20: ...102 C103 C105 C106 C107 C209 C110 C113 C121 C101 C202 C203 C205 C206 C207 C109 C210 C213 C221 C300 C301 C304 C306 C307 C308 C310 C313 C314 C316 C319 C331 C340 C341 C342 C371 C374 C376 CN31 CN33 CN34 D340 D375 IC32 IC33 L301 L303 Q302 Q305 Q342 Q343 Q344 Q345 Q346 Q371 Q372 Q375 Q376 R101 R102 R104 R105 R106 R107 R108 R110 R116 R121 R201 R202 R204 R205 R206 R207 R208 R210 R216 R221 R301 R302 R303 R...

Page 21: ... VT712 3kHz Output terminal Speaker out or Headphone out Playback the test tape VT712 3kHz at end of forward and reverse tape speed deviation should be less than 6 0Hz Playback the test tape VT712 3kHz at end of forward side adjust to 2 940 3 90Hz indication of frequency counter by VR37 VR37 Tape speed diviation at FWD REV Test tape VT712 3kHz Output terminal Speaker out or Headphone out Leass tha...

Page 22: ...for Lch and VR32 for Rch VR31 VR31 AC 225 4 20 A AC 514 4 0 A Output deviation 1kHz 10kHz 1dB 2dB Item Condition Measurement method Ref value Adjustment position Forward or Reverse Test tape AC 514 TYPE AC 225 TYPE Output terminal Recording head 1 Set the test tape AC 514 TYPE and AC 225 TYPE then make REC PAUSE condition 2 Release the PAUSE to REC condition connect 1W to ERASE head by series then...

Page 23: ...nishes Automatic measurement of TE amplitude and automatic tuning of TE balance 500mv div 2ms div Fig 1 Approx 1sec pin 20 of IC601 TE Approx 1 7V VREF Tracking error waveform at TOC reading Power ON Power Key Confirm that the Focus error S cuve ie at the pin23 of IC601 is approx 2Vp p Confirm that the siganl from pin 5 6 of IC801 is a 2V accelerated pulse with approx 700ms Confirm the waveform of...

Page 24: ...tical block do not touch the semi fixed resistor If the laser power is lower than the specified value the laser diode is almost worn out and the laser pickup should be re placed If the semi fixed resistor is adjusted while the pick up is functioning normally the laser pickup may be damaged due to excessive current 3 5 Replacement of laser pickup CD Is the level of RFOUT under 1 25V 0 22Vp p Replac...

Page 25: ... 7 CAGC I Input terminal for AGC loop filter capacitor 8 ARF O AGC output terminal 9 CEA I Capacitor connecting terminal for HPF Amp 10 3TOUT O 3 TENV output terminal 11 CBDO I Capacitor connecting terminal for envelope detection on the darkness side 12 BDO O BDO output terminal 13 COFTR I Capacitor connecting terminal for envelope detection on the light side 14 OFTR O OFTR output terminal 15 NRFD...

Page 26: ...OUT L TAI L PB OUT L REC IN L ALC L REC OUT L NC NC NC EQ MUTE MUTE Return SW Return SW ALC EQ NC TEST Open for nomal use REC MUTE OFF ON MUTO ON OFF REC RETURN ON OFF TEST 4 ALC ON OFF Vcc PB NF1 L TEST 2 RIP PBIN l REC Return GND PBIN R NC TEST 3 PB NF1 R 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 31 32 33 34 35 36 37 38 39 40 30 29 28 27 26 25 24 23 22 21 ...

Page 27: ...EC Return ON OFF Mode control input 16 Vcc Vcc Pin 17 ALC DET ALC detection signal out put 18 GND GND pin 19 I REF Equalizer reference current input 20 Test mode Test modepin 21 REC OUT L REC output 22 NC NC pin 23 ALC L ALC L signal out put 24 REC IN L REC EQ input 25 NC NC pin 26 PBOUT L PB output 27 TAI L Tape input 28 EQOUT L EQ output 29 PB EQ L NAB output 30 PB NF2 L PB EQ feed back 31 PB NF...

Page 28: ...IC750 Receiver Pin layout Block diagram 4 4 HA17758A IC902 IC944 Dual Operational Amp Pin layout Vout Vcc GND Demodulator Integrator Comparator B P F Limiter Amp GND Vdd Vout 8 7 6 5 VCC Vout2 Vin 2 Vin 2 Vout1 Vin 1 Vin 1 VEE 1 2 3 4 1 2 ...

Page 29: ...PI IC942 Regulater Pin Layout Block Diagram 2 COMMON GND 3 OUTPUT R21 R20 R16 R14 Q16 Q15 Q11 1 R15 R23 R17 R22 Q11 R1 Z1 R11 R13 Q13 R4 Q2 R18 Q18 R12 Q12 Q17 Q1 R2 R3 Q3 R5 R6 R8 Q9 Q8 Q9 Q7 Q4 C1 R7 Q6 Q19 Q14 Q19 R10 Q10 Q5 1 INPUT ...

Page 30: ...UX J60 1 30 No 22029 4 6 KIA78R08PI IC943 Regulater Pin Layout Block Diagram OVER HEAT PROTECTION ASO PROTECTION BANDGAP REFERENCE OUTPUT ON OFF CONTROL 1 2 V1N 4 V1N Control 3 GND VO ...

Page 31: ...n layout Truth table 1 2 3 Q14 Q12 Q13 Q10 Q11 Q4 Q3 Q5 Q6 Q1 Q2 Q7 Q8 Q9 Z1 R9 R3 R4 R1 R2 R8 R7 R5 R6 Q16 R11 R10 C1 3 INPUT 1 OUTPUT 2 COMMON 1 2 3 4 5 6 7 8 9 10 GND OUT1 P1 VZ IN1 IN2 VCC1 VCC2 P2 OUT2 Input Output Mode IN1 IN2 OUT1 OUT2 0 0 0 0 Brake 1 0 1 0 CLOCKWISE 0 1 0 1 COUNTER CLOCKWISE 1 1 0 0 Brake ...

Page 32: ...mer 10 AM SD This is a terminal of AM ceramic filter 11 FM VSM O Adjust FM SD sensitivity 12 AM VSM O Adjust AM SD sensitivity 13 MUTE I O When the signal of IF REQ of IC121 LC72131 appear the signal of FM AM IF output Muting control input 14 FM AM I Change over the FM AM input H FM L AM 15 MONO ST O Stereo H Mono L 16 L OUT O Left channel signal output 17 R OUT O Right channel signal output 18 L ...

Page 33: ... Vo2 BTL AMP 1 input pin Inverting side 7 Vo3 BTL AMP 2 input pin Inverting side 8 Vo4 BTL AMP 2 input pin Non inverting side 9 Vg2 BTL AMP 2 input pin For gain adjustment 10 Vin2 BTL AMP 2 input pin 11 Reg Out External transistor collector PNP connection 5V power supply output 12 Reg In External transistor PNP base connection 13 Res Reset output 14 Cd Reset output delay time setting Capacitor con...

Page 34: ...t for 4pin input and 6pin output H 4 DI I Input for receive the serial data from controller 5 CLOCK I Sync signal input use 6 DO O Data output for Controller Output port 7 FM ST VCO O Low MW mode 8 AM FM O Open state after the power on reset 9 LW I O Input output port 10 MW I O Input output port 11 SDIN I O Data input output 12 IFIN I IF counter signal input 13 IFCONT O IF signal output 14 Not use...

Page 35: ...ST I Test input 8 XOUT O Crystal oscillator output 4 332MHz 9 XIN I Crystal oscillator input exeternal reference input 10 Vssd Digtal ground 11 Vddd Digtal power supply 12 MODE I Read mode setting 0 master 1 slave 13 RST I RDS ID RAM reset positive polarity 14 RDDA O RDS data output 15 RDCL I O RDS clock output master mode RDS clock input slave mode 16 RDS ID READY O RDS ID READY output negative p...

Page 36: ...ELO L5 L4 L3 L2 L1 CL VDD ROPOUT RINM RINP ROOUT RSB RBASS2 RBASS1 RTRE RVRIN RSELO R5 R4 R3 R2 R1 Vref 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 1 2 3 4 5 6 7 8 9 10 11 12 13 RVref LVref CONTROL CIRCUIT CONTROL CIRCUIT CCB INTERFACE LOGIC CIRCUIT LOUT LSB LBASS2 LBASS1 LTRE LVRIN LSELO L5 L4 L3 L2 L1 Vref R1 R2 R3 R4 R5 RESLO RVRIN RTRE RBASS1 RBASS2 RSB ROUT RINP RINM ...

Page 37: ...4 L5 Input signal pin 15 L4 Input signal pin 16 L3 Input signal pin 17 L2 Input signal pin 18 L1 Input signal pin 19 Vref 0 5 x VDD voltage generation block for analog ground 20 R1 Input signal pin 21 R2 Input signal pin 22 R3 Input signal pin 23 R4 Input signal pin 24 R5 Input signal pin 25 RSELO Input selector output pin 26 RVRIN Volume input pin 27 RTRE Capacitor connection pin comprising trebl...

Page 38: ... 18 NRST RESET 19 VDD 5V 20 SDATA I O Serial Data Vol Tape IC Tuner 21 _MPX I FM Stereo Detection L STEREO 22 SCK O Serial Clock Vol IC Tape IC 23 PERIOD O Tuner PLL Strobe TUST CE 24 QRIN I Q code RDS data input SUBQ RDDA 25 SQCK O Q code serial clock 26 VOLCE O Volume Chip Enable 27 _AHB O Active Hyper Bass L ON 28 _SPKMUTE O Speaker mute 29 F_TU O Tuner Function H TUNER 30 F_CD O CD Function H ...

Page 39: ...UND 50 REEL I Tape End Detection 51 LEDCTL O Power Standby LED control POUT 52 KEY1 I Unit Key input 1 53 KEY0 I Unit Key input 0 54 VOLM I Volume Minus 55 VOLP I Volume Plus 56 72 SEG17 SEG33 O SEGMENT OUTPUT 73 74 LED1 LED2 O Back light color control DIMCTL 75 76 SEG34 SEG0 O SEGMENT OUTPUT 77 MODEL I Model detection 78 CLOSE O Motor driver for door close 79 OPEN O Motor driver for door open 80 ...

Page 40: ...D MCLK MDATA DSL PLL VCO AVDD2 SUB CODE BUFFER SSEL SQCK SUBQ AVDD2 CLVS CRC BLKCK CLDCK SBCK SUBC DEMPH RESY FLAG6 RESY EFM DEMODULATION SUBCODE DEMODULATION SYNC INTERPOLATION 16k SRAM CIRC ERROR CORRECTION DEINTERLEVE LRCKIN MSEL BCLK SSEL SRDATAIN PSEL IOSEL DIGITAL DEEMPHSIS 8TIMES OVER SAMPUNC DIGITAL FILTER 1BIT DAC LOGIC S PEM R PEM L DIGITAL AUDIO INTERFASE DIGITAL AUDIO INTERFASE INTER P...

Page 41: ...utput 32 FE I Focus error signal input Analog input 33 TE I Tracking error signal input Analog input 34 RF ENV I RF envelope signal input Analog input 35 VDET I Vibration detect signal input H detect 36 OFT I Off track signal input H off track 37 TRCRS I Track cross signal input 38 RFDET I RF detect signal input L detect 39 BDO I BDO input pin L detect 40 LDON I Laser ON signal output H on 42 TES ...

Page 42: ...6 STK432 070 IC940 2ch AF power amp Pin Layout Block Diagram 8 R13 TR15 TR11 C2 R11 TR12 R8 TR9 TR7 TR8 R7 D1 R2 TR3 TR2 TR1 R1 4 1 2 SUB TR6 R5 R4 R3 C1 TR5 R6 TR4 TR10 R12 R10 TR13 R9 TR16 R14 15 14 11 10 6 7 12 5 13 TR14 9 ...

Page 43: ...UX J60 No 22029 1 43 ...

Page 44: ... No 22029 AV MULTIMEDIA COMPANY AUDIO VIDEO SYSTEMS CATEGORY 10 1 1chome Ohwatari machi Maebashi city 371 8543 Japan VICTOR COMPANY OF JAPAN LIMITED 200303WPC Printed in Japan UX J60 ...

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