Table of Contents
Advertisement
Quick Links
Download this manual
See also:
Instruction Manual
SERVICE MANUAL
COMPACT COMPONENT SYSTEM
TIMER
PBC
SLEEP
ON/OFF
(MENU)
+
NTSC/PAL
SLOW SINGLE STEP
VCD
KEY CONTROL
NUMBER
–
REPEAT
ECHO
V. MASKING
PROGRAM/SET
BASS SOUND MODE
CD
DECK A/B TUNING MODE FM MODE
0
AUX
CD
TAPE
FM/AM
SELECT
DISC SKIP
FADE MUTING
+
VOLUME
7
PREV
NEXT
VOLUME
–
RM–SMXJ170V REMOTE CONTROL
Contents
MX-J170V
STANDBY
PLAY & EXCHANGER
NTSC/PAL COMPATIBILITY
COUNTER
CLOCK
ACTIVE
SOUND
RESET
/TIMER
BASS EX.
MODE
DEMO
MPX
KEY
/V.REPLACE
CONTROL
/V.MASKING
ECHO
AUX
FM/AM
CD
SELECT
PROGRAM/SET
-
+
VCD NUMBER
VCD NUMBER
PHONES
MIC LEVEL
NTSC/PAL
PREV
MIN
MAX
MIC
PRESET
EJECT
PLAY
FULL-LOGIC CONTROL
CD SYNCHRO RECORDING
PlayBack
Control
1-2
1-3
1-4
1-5
1-21
COPYRIGHT
2000 VICTOR COMPANY OF JAPAN, LTD.
OPEN / CLOSE
3
CD
1
CD
2
CD
DISC CHANGE
COMPACT
VIDEO CD
DIGITAL VIDEO
VOLUME
+
–
TAPE
CD REC
TAPE A/B
START
REC/PAUSE
NEXT
A
B
DUBBING
EJECT
REC/PLAY
VIDEO CD
Flow of functional operation
until TOC read
MX-J170V
Area Suffix
US
Singapore
U
Other Areas
1-25
1-26
1-26
1-27
No.20859
Nov. 2000
Advertisement
Table of Contents
Related Manuals for JVC MX-J170V
Summary of Contents for JVC MX-J170V
- Page 1 MX-J170V SERVICE MANUAL COMPACT COMPONENT SYSTEM MX-J170V STANDBY OPEN / CLOSE DISC CHANGE PLAY & EXCHANGER COMPACT NTSC/PAL COMPATIBILITY VIDEO CD DIGITAL VIDEO VOLUME COUNTER CLOCK ACTIVE SOUND RESET /TIMER BASS EX. MODE DEMO /V.REPLACE CONTROL /V.MASKING ECHO – FM/AM...
-
Page 2: Safety Precautions
MX-J170V Safety Precautions 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 3 MX-J170V 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 4 MX-J170V 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 MX-J170V Disassembly method Top cover <Main body> Removing the top cover and the side covers (See Fig.1 to 3) Remove the five screws A on the back of the body and the both sides of the body. Remove the top cover upward from behind.
- Page 6 MX-J170V Removing the CD Tray fitting CD tray (See Fig. 4 to 6) OPEN/CLOSE button POWER button Prior to performing the following procedure, remove the top cover and the side covers. ATTENTION: Be sure to remove the CD tray fitting before removing the CD changer unit.
- Page 7 MX-J170V Removing the CD Tray fitting & the VCD board (See Fig.7 to 10) - How to eject the CD tray without turning on power - Prior to performing the following procedure, remove the top cover and the side covers.
- Page 8 MX-J170V Removing the CD changer unit CD servo board (See Fig.11 to 13) SCW1 CD changer unit Prior to performing the following procedure, remove the top cover, the side covers and the CD Tray fitting. VCD power board Disconnect the card wire from connector SCW1 of the CD servo board on the back of the CD changer unit.
- Page 9 MX-J170V Removing the front panel assembly Front panel assembly Main board (See Fig.14 to 16) CCW1 Prior to performing the following procedure, remove CCW2 the top cover, the side covers, the CD Tray fitting and the CD changer unit. There is no need to remove the rear panel.
- Page 10 MX-J170V Removing the rear panel (See Fig.17) Rear panel Prior to performing the following procedure, remove the top cover, the side covers, the CD Tray fitting and the CD changer unit. There is no need to remove the front panel assembly.
- Page 11 MX-J170V Removing the heat sink & cooling fan Heat sink cover plate Cooling Fan (See Fig.20 and 21) Prior to performing the following procedure, remove the main board. Disconnect the harness from connector MJW1 of the main board. Remove the three screws K attaching the heat sink cover plate and cooling fan.
- Page 12 MX-J170V Removing the heat sink & VCD Power VCD Power board board (See Fig.24 and 25) Prior to performing the following procedure, remove the top cover and the side covers. Remove the two screws O attaching the heat sink Heat sink plate.
- Page 13 MX-J170V <Front panel assembly> Tab h Tab h UCW9 Prior to performing the following procedure, remove Tab h Power / CD the top cover, the side covers, the CD tray fitting and switch board the front panel assembly. Removing the power / CD switch board Front board (See Fig.27)
- Page 14 MX-J170V <CD changer unit> Shield VCD board Prior to performing the following procedure, remove the CD changer unit. Removing the VCD board (See Fig.31) Disconnect the harness from connector PCON1 of the VCD board . PCON1 Remove the four screws W attaching the Sealed and VCD board.
- Page 15 MX-J170V Reinstall the CD tray (See Fig.35 and 36) Align the gear-cam with the gear-tray as shown fig.28, then mount the CD tray. When assembling the CD tray, take extreme care not engage with gear - synchro. Gear-synchro Gear-cam Gear-tray CD tray Fig.36...
- Page 16 MX-J170V Removing the belt, the CD servo board and the switch board (See Fig.40 and 41) Belt Prior to performing the following procedure, remove the CD tray. Detach the belt from the pulley on the upper side of the CD changer unit (Do not stain the belt with grease).
- Page 17 MX-J170V Removing the CD mechanism holder assembly (mechanism included) Motor connecter (See Fig.42 to 45) Disconnect the harness from connector on the CD mechanism board in the CD mechanism assembly on the under side of the CD changer unit. Disconnect the card wire from the pickup unit connector.
- Page 18 MX-J170V <CD mechanism section> Shaft Shutter Pickup unit • Removing the CD mechanism holder from the CD chassis to remove the CD mechanism. (Refer to "Removing the CD mechanism holder assembly" (Pag.2-11)) Removing the pickup unit. 1. Loosen the two screws A fixing the chassis.(Fig.1) 2.
- Page 19 MX-J170V R/P Head <Cassette mechanism section> • Removing the record/playback mechanism. Removing the R/P head. 1. Remove the screw A on the right side of the R/P head.(Fig.1, Fig.2) 2. Remove the screw B on the left side of the R/P head.(Fig.1, Fig.2)
- Page 20 MX-J170V Motor Mecha. terminal board Removing the motor. 1. Remove the two screws D fixing the motor. Be careful to grease's splash when the drive belt comes off.(Fig.5, Fig.6) 2. Unsolder the motor terminal.(Fig.5) Removing the mechanism board. Unsolder the four parts a on the solenoid...
- Page 21 MX-J170V Adjustment method Tuner * Adjustment Location of Tuner PCB ITEAM AM(MW) OSC Adjustment AM(MW) RF Adjustment 520~1720 KHz 590 KHz Received FREQ. Non- MW -ANT Adjustment Adjustment point Maximum Output(Fig1-4) 1~7.0±0.5V Output MAIN TESTER Fig 1-4 OSC Voltage 1-21...
- Page 22 MX-J170V FM THD Adjustment Output Antenna SSG FREQ. Terminal 98 MHz Oscilloscope FM S.S.G Adjustment Input point FM DETECTOR COIL Speaker (TL3) Terminal output Input 60 dB Output Distortion Meter Minumum Distortion (0.3% below) (Figure 1-1) Figure1-1 IF CENTER and THD Adjustment...
- Page 23 MX-J170V Cassette deck 1. To adjust tape speed Notes Cassette Deck Frequency Counter 1) Measuring tape: i) MTT -111 (or equivalent) (Tapes recorded with 3kHz) SPK OUT ii) MTT -5512 (or equivalent) output 2) Connect the cassette deck to the frequency counter as in figure 1-5.
- Page 24 MX-J170V 2. To adjust playback lebel/REC Notes 1) Before the actual adjustment, clean the play/recording head. 2) Measuring tape : i) MTT-114NA(or equivalent 12.5kHz AZIMUTH control) ii) MTT -5512 3) The cassette deck is connections as shown in figure 1-7.
- Page 25 MX-J170V Flow of functional operation until TOC read Check Point Confirm that the voltage at the pin38 Play Key Power ON RESET a CD LSI of IC327 is "L" "H". Confirm that the voltage at the pin63 of IC327 is "H"...
- Page 26 MX-J170V 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 27: Trouble Shooting Guide
MX-J170V Trouble shooting guide Tray does not close/open No logo display Check the pin 20,10 Check for VIDEO Y es of IC082 when signal at pin V.OUT of CT1 open button is pressed Check VIDEO pattern Check the UIC1 line(OQ2, OQ3) - Page 28 MX-J170V Check pick-up Y es Check for resistance at pin T+,T- of NCW8: about 10ohm Pickup OK Y es Check for resistance at pin F+,F- of NCW8: about 5ohm Pickup OK Y es (When CD lead in) Check for voltage at pin1 of SIC2 1.7Vp-p...
- Page 29 MX-J170V Description of major ICs BA4560 (UIC1) / KA4558 (DIC2) : Dual OP AMP 1.Pin layout OUT1 – IN1 OUT2 – + IN1 – IN2 – + IN2 TC7SU04F (C12) : Inverter IN A OUT Y NJU3711M (UIC2) : 8-BIT Serial to parallel conveter 1.
- Page 30 MX-J170V KA22291 (DIC1) : Cassette amp. MUTE MUTE NF(2) PR IN(2) (IN2) ALC RECOUT(2) 22 21 18 15 100K 100K REC NF(2) PBOUT(2) INPUT INPUT REC IN(2) REC.BIAS RECORD LREF PB.BIAS MODE CONTROL PLAYBACK /BIAS CIRCUIT LREF REC GND INPUT...
- Page 31 MX-J170V KA3082 (IC3082) : Bi-directional DC motor driver 1.Pin layout KA3082 2.Pin function Pin Nu mber Pin Name Pin Fun ction Descriptio n Ground Output 1 Phase compensation Motor speed control Input 1 Input 2 Supply voltage (Signal) Supply voltage (Power)
- Page 32 MX-J170V LA1837 (TIC1) : FM IF/DET AM RF/IF/DET 1-32...
- Page 33 MX-J170V LC75341 (FIC1) : Function 1-33...
- Page 34 MX-J170V LC86P5032 (MI1) : 8-Bit single-chip microcontroller 1.Pin layout TEST1 XT1/P74 P80/AN0 P81/AN1 P82/AN2 P83/AN3 P84/AN4 P85/AN5 P86/AN6 P87/AN7 2.Block Diagram Interrupt control Interrupt Contro A15-A0 A15 to A0 D7-D0 D7 to D0 Standby control Stand-by Contro EPROM Contro l...
- Page 35 MX-J170V M65855FP(EIC1) : Sound processor 2. Pin function 1. Pin layout Pin No. Symbol DESCRIPTION CLOCK Echo level control with external DC voltage ECHOVOL ECHOVOL ECHOMUTE To connect 1/2 Vcc output and filter capacitor V CC OP2 IN Uses external C to from an D/A conversion...
- Page 36 MX-J170V NJU3711M (UIC2) : 8-BIT Serial to parallel converter 1. Pin layout 2. Pin function Function Pin.No Symbol V DD Parallel converts data output terminals V SS Ground Parallel converts data output terminals DATA DATA Serial data input termnal Clock signal input termnal...
- Page 37 MX-J170V SAA7327 (IC327) :Digital servo processor 1. Block diagram V SSA2 V DDA2 V SSD2 V DDD1(P) V SSA1 V DDA1 V SSD1 V SSD3 V DDD2(C) D1 D2 PRE- CONTROL PROCESSING FUNCTION OUTPUT STAGES V ref V RIN GENERATOR...
- Page 38 MX-J170V 2. Pin function Pin No. Symbol Function HFREF comparator common mode input HFIN comparator signal input ISLICE current feedback output from data slicer analog ground 1 SSA1 analog supply voltage 1 DDA1 reference current output reference voltage for servo ADCs...
- Page 39 MX-J170V 2. Pin function(2/2) Function Pin No. Symbol microcontroller interface R/W and load control line input (4-wire bus mode) SILD microcontroller interface R/W and load control line input (4-wire bus mode) STATUS servo interrupt request line/decoder status register output (open-drain)
- Page 40 MX-J170V TDA7073A(IC805) : Dual BTL power driver 2. Pin function 1. Pin layout Function Pin No. Symbol IN1– OUT1+ IN1- negative input 1 IN1+ n.c. IN1+ positive input 1 n.c. not connected n.c. GND1 n.c. not connected n.c. OUT1 –...
- Page 41 MX-J170V TDA7295 (AIC1, 2) : Audio amp. 1.Pin layout KA3082 2.Block Diagram BOOTSTRAP BOOTSTRAP OUTPUT SHORT CIRCUIT MOS OUTPUT STAGE BIPOLAR MOS GAIN & PROTECTION TRANSCONDUCTANCE LEVEL SHIFTING INPUT STAGE STAGE 1-41...
- Page 42 MX-J170V TZA1024 (IC024) : Data ampliÞer and laser supply 1. Pin Layout 2. Pin function Function PIN.No SYMBOL RGADJ current output to laser diode V DD(L) V DD laser supply voltage DD(L) CFIL EQSEL CFIL external Þlter capacitor TZA1024 CDRW...
- Page 43 MX-J170V UDA1330AT (AI1) : Stereo filter DAC 2. Pin function 1. Pin layout SYMBOL DESCRIPTION bit clock input VOUTR word select input V SSA DATAI data input DATAI VOUTL digital supply voltage V DDD V DDA digital ground UDA1330ATS V SSD...
- Page 44 MX-J170V VICTOR COMPANY OF JAPAN, LIMITED AUDIO & COMMUNICATION BUSINESS DIVISION PERSONAL & MOBILE NETWORK BUSINESS UNIT 10-1,1Chome,Ohwatari-machi,maebashi-city,371-8543,Japan Printed in Japan (No.20859) 200011(V)
- Page 45 MX-J170V Block diagrams Main section...
- Page 46 MX-J170V CD & VCD section...
- Page 47 MX-J170V Standard schematic diagrams Front section Audio signal SHEET1/5 Video signal MIC signal...
- Page 48 MX-J170V Main section SHEET5/5 AUX signal CD signal Tape signal Main signal Tuner signal Parts are safety assurance parts. MIC signal When replacing those parts make sure to use the specified one. SHEET2/5...
- Page 49 MX-J170V CD servo section Audio signal Video signal CD signal SHEET 3/5...
- Page 50 MX-J170V VCD section Audio signal CD signal SHEET 4/5 Video signal...
- Page 51 MX-J170V Tuner section 180(1/2W) TR63 FM/TUNER signal AM signal SHEET 5/5...
- Page 52 MX-J170V Printed circuit boards Main board...
- Page 53 MX-J170V Front board...
- Page 54 MX-J170V CD servo board MIC / Headphone board 2-10...
- Page 55 MX-J170V Tuner board 2-11...
- Page 56 MX-J170V VCD board VCD power board TOP View BOTTOM View 2-12...
-
Page 57: Parts List
MX-J170V PARTS LIST [ MX-J170V ] * All printed circuit boards and its assemblies are not available as service parts. CA-MXJ170V/SP-MXJ170V Area suffix US --------------------- Singapore U --------------------- Other Areas - Contents - Exploded view of general assembly and parts list... - Page 58 MX-J170V -MEMO-...
- Page 59 MX-J170V Exploded view of general assembly and parts list Block No. Main board Tuner board AC primary board Front board VCD board CD-Key board...
- Page 60 MX-J170V CD mechanism assembly and parts list (General assembly) Parts list Block No. M1MM Block No. Item Parts number Parts name Q'ty Description Area WINDOW AH64-00426C CD DOOR AH64-00414C AH64-00429C WINDOW-DOOR CD DOOR,CD AH64-00462A BADGE-JVC AH64-00417B KNOB AH63-00107A SHEET-FRONT AH64-00430D...
- Page 61 MX-J170V CD changer mechanism assembly and parts list Block No. Base main Tray stopper VCD board CD sub board CD mechanism...
- Page 62 MX-J170V Parts list(CD changer mechanism) Block No. M3MM Item Description Parts number Parts name Q'ty Area AH66-80022A SLIDER-CAM AH66-60034A BELY-LOAD GEAR AH66-20186A AH66-20187A GEAR-LOAD AH66-20188A GEAR-CAM AH66-20189A GEAR-TRAY GEAR-CONVERT AH66-20190A AH66-20191A GEAR-SYNCRO AH66-20192A GEAR-WORM AH31-12001A MOTOR-LOADING GEAR-ROULETTE AH66-20193A TRAY-ROULBTTE AH66-90056A...
- Page 63 MX-J170V Cassette mechanism assembly and parts list Block No. SAM CASSETTE Note: Parts listed on the Parts List below can be supplied. However, parts that are not listed below cannot be supplied individually but only by purchasing the whole Cassette Mechanism Assembly Unit.
- Page 64 MX-J170V Electrical parts list Electrical parts list( Main board ) Block No. 01 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area AC 1 2401-001954 E CAPACITOR DC 1 2301-000412 C CAPACITOR AC 2 2401-001954...
- Page 65 MX-J170V Electrical parts list(Main board) Block No. 01 Item Remarks Item Parts number Parts name Remarks Area Parts number Parts name Area DC 75 2202-000243 C CAPACITOR DR 48 2001-000591 C RESISTOR DC301 2202-000781 C CAPACITOR DR 49 2001-000734 C RESISTOR...
- Page 66 MX-J170V Electrical parts list(Main board) Block No. 01 Item Remarks Parts number Parts name Area Item Parts number Parts name Remarks Area EC 7 2202-000797 C CAPACITOR FR 1 2001-000613 C RESISTOR EC 8 2202-000797 C CAPACITOR FR 1 3602-000147...
- Page 67 MX-J170V Electrical parts list(Main board) Block No. 01 Item Remarks Parts number Parts name Area Item Parts number Parts name Remarks Area PC 26 2301-000449 C CAPACITOR PR 27 2001-000027 C RESISTOR PC 27 2401-001538 E CAPACITOR PR 28 2001-000020...
- Page 68 MX-J170V Electrical parts list(Main board) Block No. 01 Item Remarks Parts number Parts name Area VR 6 2001-000522 C RESISTOR VR 7 2001-000273 C RESISTOR VR 8 2001-000522 C RESISTOR VR 9 2001-000522 C RESISTOR VR 10 2001-000734 C RESISTOR...
- Page 69 MX-J170V Electrical parts list(Front board) Block No. 02 Item Remarks Parts number Parts name Area Item Parts number Parts name Remarks Area DECK 3809-001146 FLAT CABLE UD 24 0402-000127 DIODE 1N4002 GND 2 AH39-50001L LEAD-FASTEN UD 25 0401-000101 DIODE 1N4148...
- Page 70 MX-J170V Electrical parts list(Front board) Block No. 02 Item Remarks Item Remarks Parts number Parts name Area Parts number Parts name Area UQ 21 0501-000398 TRANSISTOR KSC945 UR 61 2001-000273 C RESISTOR UQ 22 0504-000118 TRANSISTOR KSR1003 UR 62 2001-000273...
- Page 71 MX-J170V Electrical parts list(Front board) Block No. 03 Item Remarks Parts number Parts name Area Item Remarks Parts number Parts name Area IC024 1204-001532 TZA1024T NC110 2203-000206 C CAPACITOR IC073 1003-001192 TDA7073AT NC111 2203-000260 C CAPASITOR IC082 1003-001162 IC-MOTOR DRIVER...
- Page 72 MX-J170V Electrical parts list(CD serve board) Block No. 03 Item Remarks Parts number Parts name Area NR116 2007-000502 CHIP RESISTOR NR201 2007-000468 CHIP RESISTOR NR202 2007-000586 CHIP RESISTOR NR203 2007-000735 CHIP RESISTOR NR204 2007-000502 CHIP RESISTOR NR206 2007-000502 CHIP RESISTOR...
- Page 73 MX-J170V Electrical parts list(Tuner board) Block No. 05 Item Remarks Item Parts number Parts name Remarks Area Parts number Parts name Area FM PA AH40-10025N TUNER FM TJW10 2007-000029 CHIP RESISTOR HIC 1 AH14-10007G TJW41 2007-000029 CHIP RESISTOR MW AN...
- Page 74 MX-J170V Block No. 06 Electrical parts list(Tuner board) Block No. 05 Electrical parts list(VCD board) Item Remarks Item Remarks Parts number Parts name Area Parts number Parts name Area TR 51 2007-000872 CHIP RESISTOR AAR 1 2007-000241 C RESISTOR TR 52...
- Page 75 MX-J170V Electrical parts list(VCD board) Block No. 06 Item Remarks Item Parts number Parts name Remarks Area Parts number Parts name Area CJ 1 2007-000029 CHIP RESISTOR OR 7 2007-000572 CHIP RESISTOR CJ 2 2007-000029 CHIP RESISTOR OR 8 2007-000572...
- Page 76 MX-J170V Electrical parts list(VCD power board) Block No. 07 Item Remarks Item Remarks Parts number Parts name Area Parts number Parts name Area FR 1 3602-000147 FUSE CLIP VR 16 2001-000522 C RESISTOR FR 2 3602-000147 FUSE CLIP VR 17...
- Page 77 MX-J170V Packing materials and accessories parts list Block No. Block No. 3-21...
- Page 78 MX-J170V Parts list(Packing) Block No. M5MM Item Description Parts number Parts name Q'ty Area AH69-00180D CARTON AH69-00152A CUSHION-L AH69-00153A CUSHION-R AH69-30012T PE-BAG 18654-101-071 PE-BAG I.B AH81-00243M BOTTOM CUSHION 1 SPEAKER AH81-00243L TOP CUSHION 1 SPEAKER AH81-00243P POLY BAG 2 SPEAKER...