JVC XV-FA90BK Service Manual Download Page 37

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XV-FA90BK/XV-FA92SL/XV-FA95GD

1-37

K4S643232E-TC60(IC505):DRAM

Bank select

Address register

Ro
w b

uff
er

refresh counter

LRAS

LCBR

LWE

CLK

ADD

LCKE

Ro
w decoder

Col.

uff
er

LCAS

LWCBR

CLK

CKE

RAS

CAS

DQM

LDQM

Timing register

Data input register

512K x 32

I/O control

Sense AMP

Output b

uff
er

LWE

LDQM

DQI

Column decoder

Latency & burst length

Programming register

1.Block diagram

CLK

CKE

A0~A10

BA0,1

RAS
CAS

System clock signal input
Chip select input
Clock enable
Address
Bank select address
Row address strobe
Column address strobe
Write enable

2.Pin function

DQM0~3

DQ0~31

VDD

VSS

VDDQ

VSSQ

Data input/output mask
Data input/output
Power supply terminal
Connect to ground
Power supply terminal
Connect to ground
Non connect

Symbol

Description

Symbol

Description

Summary of Contents for XV-FA90BK

Page 1: ...ifference point ATTENTION Please pull out the AC plug code after the standby indicator lights pushing the power supply button without fail after completing the repair The mechanism becomes initialed position There is a possibility to break when carrying in not initialed position the mechanism but the state Contents Safety precautions 1 2 Preventing static electricity 1 3 Importance admistering poi...

Page 2: ...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 cabinet particularly any exposed metal part having a return...

Page 3: ...quality during transport and before installation both sides of the laser diode on the replacement optical pickup are shorted After replacement return the shorted parts to their original condition Refer to the text 2 Do not use a tester to check the condition of the laser diode in the optical pickup The tester s internal power source can easily destroy the laser diode 1 2 Handling the traverse unit...

Page 4: ...nce Admistering point on the Safety F901 C902 C903 C905 C906 C907 C908 C909 C910 C913 C914 C915 C917 C918 C919 C951 C960 C961 C962 C963 C964 C965 C966 C967 C968 C969 C970 C971 C972 C973 C978 C979 C981 C982 C984 C987 C989 C992 C993 C994 C995 C996 C997 CN951 CN952 CP951 D901 D902 D903 D904 D908 D910 D911 B104 B106 D950 D951 D952 D953 D954 D956 D957 D958 D960 D972 D973 D974 D991 FC901 FC902 IC901 IC9...

Page 5: ...al block Do not change the setting of these half fixed resistors for laser power adjustment Destruction of Traverse Unit and Laser Pickup by Static Electricity Laser diodes are easily destroyed by static electricity charged on clothing or the human body Before repairing peripheral elements of the traverse unit or pickup be sure to take the following electrostatic protection 1 Wear an antistatic wr...

Page 6: ...o performing the following procedure remove the top cover Disconnect the card wire from connector CN801 and CN803 on the servo control board and CN951 on the power board respectively Remove the three screws C on the upper side of the body Remove the three screws D on the bottom of the body Remove the front panel assembly toward the front 1 2 3 Removing the front panel assembly See Fig 2 and 3 Bott...

Page 7: ...ly toward the front manually Bring up the joint a over the boss of the loading base assembly and remove the main tray assembly toward the front Disconnect the card wire on the back of the main tray assembly from connector CN841 on the relay board 1 1 2 3 4 Removing the main tray assembly See Fig 4 to 7 Main tray assembly Fig 4 Fig 5 Fig 6 Fig 7 Bottom chassis slot Bottom chassis Main tray assembly...

Page 8: ...41 on the relay board 1 Reattach the main tray assembly while fitting the slot c to the shaft 1 2 3 4 5 Reattaching the main tray assembly See Fig 8 to 10 Main tray assembly Fig 8 Fig 9 Fig 10 Loading base assembly Relay board 1 CN841 Photo sensor board Notch b Slide gear Slot c Joint a Boss Shaft Load base Prior to performing the following procedure remove the top cover the front panel assembly a...

Page 9: ...ard from connector CN763 Remove the screw G attaching the surround audio board Pull out the surround audio board from connector CN754 and CN603 1 2 3 Surround audio board Pull out the relay board 2 on the upper side of the body Remove the four screws J attaching the A V output board 1 2 A V output board Disconnect the wire from connector CN952 and CN953 on the power board Remove the four screws K ...

Page 10: ...he power switch board 1 2 Removing the power switch board See Fig 17 Remove the six screws O on the back of the front panel assembly Disconnect the card wire from connector CN812 on the operation switch board 1 2 Removing the operation switch board See Fig 17 Remove the two screws P on the back of the front panel assembly Disconnect the card wire from connector CN805 on the FL display board 1 2 Re...

Page 11: ...raverse mechanism assembly from the elevator base As the removing procedure of the traverse mechanism please refer to Removing the traverse mechanism assembly REFERENCE Reattach the elevator base to the loading base assembly while fitting the two shafts on the side of the elevator base to the grooves of the slide gear Reattach the two screws Q 1 2 Reattaching the elevator base From above the loadi...

Page 12: ...e the two screws T and the slide gear upward 1 2 3 4 5 Removing the belt load base slide gear CAUTION When reattaching the slide gear and the load base Move the slide gear toward the front until it stops Fig 23 Make sure that the part d of the load base is out of alignment with the switch e and that the gear f is disengaged from the slide gear 1 2 Fig 20 Fig 21 Fig 22 Fig 23 Loading base assembly ...

Page 13: ... motor 1 2 3 4 Removing the loading motor loading motor board See Fig 24 and 25 Removing the tray switch board See Fig 26 Turn over the loading base assembly and remove the tray switch board while spreading apart the two tabs j 1 When reattaching the loading motor board settle the wires on the two hooks i on the loading base assembly and draw the other end to the left as shown in Fig 26 CAUTION Fi...

Page 14: ... spring at the same time Move the shaft in the direction of the arrow to release it from the part c Release the joint d with the shaft and remove the pickup with the shaft Pull out the shaft Remove the screw B attaching the switch actuator 3 4 5 6 7 Removing the pickup See Fig 1 to 5 Disconnecting the flexible wire without soldering may cause damage to the pickup ATTENTION Traverse mechanism unit ...

Page 15: ...forming the following procedure remove the traverse mechanism unit Solder soldering a on the flexible board next to the pickup unit From the bottom of the traverse mechanism unit disconnect the flexible wire from CN101 on the pickup board 1 2 Remove the pickup board Remove the two screws D attaching the feed motor assembly and remove the thrust spring Move the feed motor assembly in the direction ...

Page 16: ...e of the shaft stopper F outward to release the joint h and remove it upward Remove the spring at the same time Remove the screw F attaching the turn table assembly Move the turn table assembly outward and pull out from the shaft Then remove it from the base chassis 1 2 3 4 Removing the turn table assembly See Fig 6 8 and 9 Fig 8 Fig 9 Turn table assembly Turn table assembly Shaft stopper F Shaft ...

Page 17: ... under side of the main tray assembly Remove the screw B attaching the main tray cover on the upper side of the main tray assembly Push the two joint tabs b on the back of the main tray assembly to release the main tray cover from the tray bottom Disengage the joint tabs c of the main tray from the main tray cover 1 2 3 Removing the main tray cover and the main tray See Fig 2 and 3 Hook Fig 1 Fig ...

Page 18: ...s to the part d on the photo sensor board and before reattaching the photo sensor board connect the card wire to connector CN082 and pass the card wire extending from connector CN081 through the notch e of the main tray When reassembling Make sure to disconnect the card wire from the photo sensor board If the photo sensor board is pulled out from the main tray without disconnecting the card wire t...

Page 19: ... D cam U on the upper side of the main tray assembly 1 Removing the U D cam U See Fig 7 Make sure the sub trays are set as shown in Fig 5 When moving the sub trays put the sub trays which come to the position 4 and 5 forward in turn Prior to moving the sub trays by hand the sub tray drive motor assembly must be removed in advance referring to the preceding page Do not put the sub trays forward exc...

Page 20: ... and 1 in order When reattaching observe the following procedure without fail CAUTION Reattach the sub tray 1 while fitting the part f to the groove of the ACT gear 1 marked g Reattach the sub tray 2 while inserting the shaft h into the groove i of the main tray and at the same time fitting the part j to the groove of the ACT gear 1 marked k Move the sub tray 2 toward the tray 1 Similarly reattach...

Page 21: ...6 At this point the sub tray 3 is on top of the sub tray 2 REFERENCE At this point the sub tray 4 is on top of the sub tray 3 REFERENCE Make sure the part o of the sub tray 4 engages with the ACT gear 2 correctly in the center of the main tray CAUTION Make sure that the trays are attached to the correct position and that they can be moved To move the sub trays manually the sub tray drive motor ass...

Page 22: ...h board assembly Remove the two screws G attaching the cam switch board assembly 1 2 3 4 Removing the cam switch board assembly See Fig 15 to 17 When reattaching the cam gear 2 set the position of the boss and the triangular mark and hole as shown in Fig 17 CAUTION Gear cover Fig 15 Fig 16 Fig 17 Tabs marked p F G G Cam switch board assembly CN083 Cam gear 2 Triangular mark Set the position of the...

Page 23: ...r 1 Draw out the cam gear 1 Draw out the ACT gear 2 while pushing the two 1 2 3 4 Removing the ACT gear 1 U D cam L cam gear 1 and ACT gear 2 See Fig 18 and 19 When reassembling make sure the position of each gear referring to Fig 19 and reattach the ACT gear 2 first CAUTION U D cam L Fig 18 Fig 19 ACT gear 1 ACT gear 2 Cam gear 1 U D cam L ACT gear 2 Tabs q Cam gear 1 ACT gear 1 ...

Page 24: ... remote controller is pushed twice the figure is displayed on the FL display as follows 4 5 _ 3 3 _ 4 5 _ F 0 FL Display FL Display microcomputer IC801 Front end microcomputer IC401 Microcode of decoder Decoder part IC509 POWER Button STOP Button for test mode FORWARD SKIP Button for initialize PLAY Button for test mode or display of jitter value PAUSE Button automatic adjustment or initialize FL ...

Page 25: ...5 2 5 3 5 4 5 5 5 7 5 8 5 9 6 0 6 1 6 3 6 4 6 6 6 7 6 9 7 0 7 1 7 2 7 3 7 5 3B18 3B28 3B38 3B48 3B58 3B68 3B78 3B88 3B98 3BA8 3BB8 3BC8 3BD8 3BE8 3BF8 3C18 3C28 3C38 3C48 3C58 3C68 3C78 3C88 10 5 10 6 10 7 10 8 10 9 11 1 11 2 11 3 11 4 11 5 11 7 11 8 11 9 12 0 12 1 12 4 12 5 12 7 12 7 12 9 13 0 13 1 13 2 3998 39A8 39B8 39C8 39D8 39E8 39F8 3A18 3A28 3A38 3A48 3A58 3A68 3A78 3A88 3A98 3AA8 3AB8 3AC8...

Page 26: ...verse mechanism as shown in Figure The clamper is removed from the clamper base 6 The disk Everything is good is put on sub tray 1 the test disk is put on the turntable in the traverse mechanism and fixes by the clamper 7 The card wire becomes under the main tray and the main tray is closed by hand operated 8 The AC plug code is inserted and the DISC1 button is pushed Please push the DISC1 button ...

Page 27: ...is pushed 4 The up grade starts if the entire screen becomes blue and it is displayed writing block at 00000000 5 The up grade disk is taken out pushing the OPEN CLOSE button when returning to the normal screen 6 Please confirm the version of the microcomputer after makes to test mode and initializes Please do the up grade of the firmware after exchanging IC509 IC512 IC513 ATTENTION Please pull ou...

Page 28: ...inues for several seconds and becomes NO DISC or an error display afterwards The rotation of DISC becomes high speed and abnormal and becomes NO DISC or an error display afterwards Is focus retraction OK Even when it retracts correctly if it is out of focus and makes repeated retries with a clicking sound it is in error Is tracking retraction OK If TE waveform reappears or fails to converge after ...

Page 29: ...H while the terminal of IC251 23 SPMUTE is operating Is the control signal input to the terminal of IC251 22 EC changes from VHALF voltage while the motor is working Is the VHALF voltage input to the terminal of IC251 21 ECR 4 Is the FG signal input to the servo IC Is FG pulse input to the terminal of IC201 53 FG according to the rotation of the motor Laser is defective Front End Processor is defe...

Page 30: ...he tracking been turned on Spindle motor and driver is defective Additionally IC101 and IC201 and Mechanism is defective jitter etc are thought Besides the undermentioned cause is thought though specific of the cause is difficult because various factors are thought Mechanism is defective jitter IC201 IC301 IC401 The disc is dirty or the wound has adhered 7 Address read NG 8 Between layers jump NG ...

Page 31: ...e feeding mechanism etc The image is sometimes blocked and the image stops The image is blocked when going to outer though it is normal in surroundings in the disk and the stopping symptom increases There is a possibility with bad jitter value for such a symptom 12 CD During normal playback operation a Is TOC reading normal Displays total time for CD DA Shifts to double speed mode for V CD b Playb...

Page 32: ...put terminal Power supply terminal 3V Connect to GND VREF2 voltage output terminal Power supply terminal 5V VHALF voltage output terminal Equivalence RF Equivalence RF Connect to GND I I O I I O I I I O I I I I I I I O O I O O O O O O Pin No Symbol PC1 PC01 PC2 PC02 TGBAL TBAL FBAL POFLT DTRD IDGT STANDBY SEN SCK STDI RSEL JLINE TEN TEOUT ASN ASOUT FEN FEOUT VSS TG VDD GND2 VREF2 VCC2 VHALF DFLTON...

Page 33: ...3 4 power block Input for Ch4 stand by control Substrate ground Output for CH3 OP AMP Inverting input for CH3 OP AMP Non inverting input for CH3 OP AMP Output for CH4 OP AMP Inverting input for CH4 OP AMP Non inverting input for CH4 OP AMP Vcc for pre block 1 Block diagram 2 Pin function 28 27 26 Vcc 25 24 23 22 10k 20k 21 20 19 18 17 16 15 STAND BY CH4 Vcc 10k 10k 10k 10k 10k 10k 10k 10k 10k 10k ...

Page 34: ...nnect Output 2 for spindle motor Non connect Non connect Output 1 for spindle motor Connect to ground Positive input for hall input AMP 1 Negative input for hall input AMP 2 Positive input for hall input AMP 2 Negative input for hall input AMP 2 Positive input for hall input AMP 3 Negative input for hall input AMP 3 Hall bias terminal Non connect Capacitor connection pin for phase compensation Sho...

Page 35: ...nal from host Interrupt of request to host Wait demand to host Reset signal from host Power supply Connect to ground Power supply Connect to ground Data output to DVD decoder 8 bits Connect to ground Data output to DVD decoder 8 bits Power supply Connect to ground Request signal for forwarding control by decoder Output signal to decoder which shows effective data Data strobe signal to decoder Sect...

Page 36: ...terminal for crystal oscillator circuit on off control Non connect Crystal oscillation terminal input side Crystal oscillation terminal output side Non connect Power supply Connect to ground Oscillation output terminal Oscillation output terminal Power supply Connect to ground Power supply Connect to ground Presence of data error from front end Sector sink signal from front end Data clock signal f...

Page 37: ...ol Sense AMP Output buffer LWE LDQM DQI Column decoder Latency burst length Programming register 1 Block diagram CLK CS CKE A0 A10 BA0 1 RAS CAS WE System clock signal input Chip select input Clock enable Address Bank select address Row address strobe Column address strobe Write enable 2 Pin function DQM0 3 DQ0 31 VDD VSS VDDQ VSSQ NC Data input output mask Data input output Power supply terminal ...

Page 38: ...61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 SWUPDN SWOPEN ADSCEN VDD FEPEN SLEEP BUSY REQ CIRCEN VSS EPCS EPSK DPDI EPDO VDD SCLKO S2UDT U2SDT CPSCK SDIN SDOUT NMI ADSCIRQ ODCIRQ DECIRQ CSSIRQ ODCIRQ2 ADSEP RST VDD TEST1 TEST2 TEST3 TEST4 TEST5 TEST6 TEST7 TEST8 VSS D0 D1 D2 D3 D4 D5 D6 D7 Elevator UP DOWN switch detect T...

Page 39: ...10 CPUADR9 CPUADR8 CPUADR7 CPUADR6 CPUADR5 CPUADR4 CPUADR3 CPUADR2 CPUADR1 VSS CPUADR0 NCS NWR NRD VDD CPUDT7 CPUDT6 PVPPDRAM PTESTDRAM PVDDDRAM PVSSDRAM CPUDT5 CPUDT4 CPUDT3 VSS CPUDT2 144 143 142 141 140 139 138 137 136 135 134 133 132 131 130 129 128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 DMARQ NIOWR VSS NIORD IORDY NDMACK VDD INTRQ NIOCS16 DA1 VSS NPDIAG DA...

Page 40: ...ta ATAPI Data Power supply 3V ATAPI Data ATAPI Data ATAPI Data Connect to GND ATAPI Data Power supply 2 7V ATAPI Data ATAPI Data ATAPI Data ATAPI Data Power supply 3V ATAPI Data ATAPI Data Connect to GND ATAPI Data ATAPI Data ATAPI Data ATAPI Reset input ATAPI Master slave select Interruption of system control 0 Interruption of system control 1 Wait control of system control Reset of system contro...

Page 41: ...ystem control address System control chip select Writing system control Reading system control Power supply 3V System control data System control data Connect to VSS Connect to VSS Connect to VDD 2 7V Connect to VSS System control data System control data System control data Connect to GND System control data System control data System control data Clock signal output 16 9 11 2 8 45MHz Power suppl...

Page 42: ... read from disc Going side by side output from ADSC Data is read from disc Going side by side output from ADSC Data is read from disc Going side by side output from ADSC Data is read from disc Going side by side output from ADSC Power supply 3V Debug serial clock 270 ohm pull up Debug serial data 270 ohm pull up Internal good title monitor Connect to TP150 Internal good title monitor Connect to TP...

Page 43: ... 58 57 56 55 54 53 52 51 MN67706ZY MN67706ZY IC201 Auto digital servo controller 1 Pin layout Pin No Symbol I O Description 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 AS AD2 TE AD1 FE AD0 AVDD FODRV DA1 TRDRV DA0 AVSS ARF NARF IREF1 IREF2 DSLF1 DSLF2 AVDD VHALF PLPG PLFG VREFH RVI AVSS PLFLT1 PLFLT2 JITOUT RFDIF CSLFL1 AS Full adder signal FEP Phase difference 3 beam trackin...

Page 44: ... TP204 Analog audio right output Ground For analog circuit Tangential balance adjust FEP Tracking balance adjust FEP Focus balance adjust FEP Ground For I O Apply 3 3V For I O Off track signal 16 9344MHz system clock input ODC Drop out FEP Calibration signal FEP Traverse drive DRVIC Spindle drive output DRVIC FG signal input Spindle motor driver Connect to TP205 Connect to TP206 Connect to TP207 G...

Page 45: ... I F chip select System control CIRC serial I F chip select System control Interrupt request System control Serial I F clock System control Serial I F data input System control Serial I F data output System control Connect to TP226 Monitor terminal A Connect to TP225 Monitor terminal A Connect to TP224 Monitor terminal A Connect to TP211 Ground For internal core Apply 2 5V For internal core Laser ...

Page 46: ...s bus terminal Connect to ground SDRAM Address bus terminal Connect to ground SDRAM Address bus terminal Power supply terminal 3 3V SDRAM Address bus terminal SDRAM Clock output Connect to ground SDRAM Clock enable output SDRAM Address bus terminal Power supply terminal 3 3V SDRAM Address bus terminal SDRAM Address bus terminal NDV8601VWA BB IC501 AV Decoder 1 60 180 121 240 181 61 120 1 Pin layou...

Page 47: ...DRAM Data bus terminal Connect to ground SDRAM Data bus terminal Power supply terminal 3 3V SDRAM Data bus terminal SDRAM Data byte enable SDRAM Extension bank chip select Connect to ground S PDIF Digital audio output terminal Connect to ground Digital audio input for digital micro can be used as GPIO Serial audio output data to audio DAC for left and right channels for down mix Serial audio outpu...

Page 48: ... Scan chain test enable Connect to ground for main and video clock PLL Connect to ground for audio clock PLL Scan chain test mode Power supply terminal for audio clock PLL 3 3V Power supply terminal for DAC digital 1 8V Connect to ground for DAC digital Video signal output Cr output composite component Red output Cascaded DAC differential output used to dump current into external resistor for powe...

Page 49: ...bus terminal Power supply terminal 3 3V Byte write enable for FLASH EEPROM SRAM or peripherals terminal Address latch enable Latched address 0 3 Connect to ground Read terminal Bus hold acknowledge in slave mode Bus hold request from external master in slave mode Power supply terminal 1 8V Peripheral chip select 0 generally used for enabling the program store ROM FLASH Programmable general purpose...

Page 50: ... O O I I I I I I O Parallel conversion data output terminal Connect to GND Parallel conversion data output terminal Serial data input terminal Clock signal input terminal Strobe signal input terminal Clear signal input terminal Ready signal input Non connect Muting signal input Parallel conversion data output terminal Power supply terminal PIN No I O Function Symbol 1 2 3 4 5 6 7 8 9 10 11 22 21 2...

Page 51: ... read cycles and receive input data during write cycles Data is internally latched during a write cycle The outputs are in tri state when OE or CE is high To activate the device when CE is low To gate the data output buffers To control the write operations To provide 3 volt supply 2 7V 3 6V Symbol Function Pin name SST39VF160 7CEK IC509 16M EEPROM 1 Pin layout 3 Pin function 2 Block diagram 1 2 3 ...

Page 52: ...ect input Remote controller signal input Connect to ground for A D converter Operation switch S801 S808 input terminal Operation switch S809 S810 S812 S815 input terminal Cam switch position detection terminal S84 Traverse mechanism UP DOWN switch detection terminal S82 Connect to ground for port section Power supply terminal 5V Power supply terminal 5V for port section Serial data output for LED ...

Page 53: ...l Radio compact disc compact disc digital audio Complementary Metal Oxide Semiconductor Central Processing Unit red color difference component in accordance with the CCIR 601 specifications Content Scrambling System Clear To Send Composite Video Blank and Sync Digital to Analog Converter direct current DEMUX Engine Digital Signal Processing Digital Theater System Digital Versatile Disc End Active ...

Page 54: ...orld Brazil On screen display Phase alteration by line Pulse Code Modulation PCM audio data over sampling clock 1 Picture Control and Size 2 Perpheral Chip Select Phase Lock Loop Plastic Quad Flat Pack Package Pulse Width Modulator Read Write access Random Access Memory Red Green Blue color model Reduced Instruction Set Computer Read Only Memory Receive signal Readable Write able Start Active Vide...

Page 55: ...Printed in Japan 200110 O No A0021 XV FA90BK XV FA92SL XV FA95GD VICTOR COMPANY OF JAPAN LIMITED PERSONAL MOBILE NETWORK BUSINESS UNIT 1644 Shimotsuruma Yamato Kanagawa 242 8514 Japan ...

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