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SERVICE MANUAL
COMPACT COMPONENT SYSTEM
FS-SD770R / FS-SD990R
REMOTE CONTROL
DIMMER
SLEEP
AUTO
DISPLAY
PRESET
FM MODE
PROGRAM
RANDOM
REPEAT
DOOR
CD
AHB PRO
SLIDE
BASS
TREBLE
CANCEL
PTY/EON
DISPLAY MODE
UP
SET
DOWN
FADE MUTING
CD
MD/AUX
FM / AM
VOLUME
REMOTE CONTROL
DIMMER
SLEEP
AUTO
DISPLAY
PRESET
FM MODE
PROGRAM
RANDOM
REPEAT
DOOR
AHB PRO
SLIDE
CD
BASS
TREBLE
CANCEL
PTY/EON
DISPLAY MODE
UP
SET
DOWN
FADE MUTING
CD
MD/AUX
FM / AM
VOLUME
The difference between FS-SD550R and FS-SD770R FS-SD990R is only the speaker systems.
The difference between FS-SD770R and FS-SD990R is cabinets of the speaker.
Contents
These models not have adjustment.
Safety Precautions
Important for laser products
Preventing static electricity
Dismantling and assembling
the traverse unit
Disassembly method
Maintenance of laser pickup
Replacement of laser pickup
FS-SD550R
CD-ROM No.SML200103
FS-SD550R
FS-SD770R, FS-SD990R
2-1
2-2
2-3
2-4
2-5
2-14
2-14
COPYRIGHT
2001 VICTOR COMPANY OF JAPAN, LTD.
FS-SD550R / FS-SD770R / FS-SD990R
Flow of functional operation
unit TOC read
Method of connecting
treatment device wire
Description of major ICs
Area Suffix
U.K
B
Continental Europe
E
Northern Europe
EN
2-15
2-16
2-17
No.20923
Mar. 2001
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Table of Contents
Related Manuals for JVC FS-SD550R
Summary of Contents for JVC FS-SD550R
- Page 1 MD/AUX FM / AM VOLUME FS-SD770R, FS-SD990R The difference between FS-SD550R and FS-SD770R FS-SD990R is only the speaker systems. The difference between FS-SD770R and FS-SD990R is cabinets of the speaker. Contents These models not have adjustment. Flow of functional operation...
- Page 2 FS-SD550R/FS-SD770R/FS-SD990R 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.
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Page 3: Important For Laser Products
FS-SD550R/FS-SD770R/FS-SD990R 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: Preventing Static Electricity
FS-SD550R/FS-SD770R/FS-SD990R 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. 1.1. Grounding to prevent damage by static electricity Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as DVD players. -
Page 5: Dismantling And Assembling The Traverse Unit
FS-SD550R/FS-SD770R/FS-SD990R Dismantling and assembling the traverse unit Notice regarding replacement of optical pickup 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 to the optical pickup or connected devices. -
Page 6: Disassembly Method
FS-SD550R/FS-SD770R/FS-SD990R Disassembly method <Main body> Removing the CD door (See Fig.1) Remove the four screws A attaching the CD door on the upper side of the body. CD door Fig.1 Removing the rear cover (See Fig.2) Rear cover Piro to performing the following procedure, remove the CD door. -
Page 7: Removing The Front Panel Assembly
FS-SD550R/FS-SD770R/FS-SD990R Removing the front panel assembly Bottom (See Fig.4 to 6) Prior to performing the following procedure, remove the CD door, the rear cover and the side covers. Remove the three screws E on the bottom of the body. Release two joints a and two joints b on both sides of the body using a screwdriver and remove the front panel assembly toward the front. - Page 8 FS-SD550R/FS-SD770R/FS-SD990R Remove the screw G attaching the power amplifier CD mechanism base assembly board on the back of the body. Disconnect the wire from connector CN301 and pull the power amplifier board fully outward. Raise the right and left door arms by turning the gear a in the rear of the power amplifier board.
- Page 9 FS-SD550R/FS-SD770R/FS-SD990R Removing the door arm assembly / the Door arm board (R) Door arm door arm board (R) and (L) Door arm (See Fig.15 to 20) Prior to performing the following procedure, remove the rear cover, the side covers, the front panel assembly and the CD mechanism base assembly.
- Page 10 FS-SD550R/FS-SD770R/FS-SD990R Power amplifier board Removing the power amplifier board Door arm assembly (See Fig.21 and 22) CN191 CN193 CN106 Prior to performing the following procedure, remove Cord stopper the CD mechanism base assembly. Disconnect the wires from connector CN102 and...
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Page 11: Removing The Front Panel Board
FS-SD550R/FS-SD770R/FS-SD990R Removing the fan motor assembly (See Fig.25 and 26) Fan motor Prior to performing the following procedure, remove the CD mechanism base assembly. Disconnect the wires from connector CN181 on the main board. Remove the two screws P on the left side of the body. - Page 12 FS-SD550R/FS-SD770R/FS-SD990R <CD mechanism base assembly> Speaker terminal board CD mechanism board CN706 Prior to performing the following procedure, remove the CD mechanism base assembly. CD mechanism cover Refer to "Dismantling and assembling the CD mechanism assembly" on page 1-5 for the treatment of optical pickup.
- Page 13 FS-SD550R/FS-SD770R/FS-SD990R Solder the short circuit land on the sub board. CD mechanism assembly Cushion Cushion Disconnect the wire from connector CN605 on the CD mechanism cover main board. Disconnect the sub board from connector CN603 on the main board while peeling off the adhesive tape on the underside of the sub board.
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Page 14: Removing The Led Board
FS-SD550R/FS-SD770R/FS-SD990R Removing the jack board (See Fig.35) Jack board Prior to performing following procedure, remove the CD mechanism board. Disconnect the wire from connector CN502 on the jack board. Switch board Remove the two screws V attaching the jack board. -
Page 15: Maintenance Of Laser Pickup
FS-SD550R/FS-SD770R/FS-SD990R 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 16: Flow Of Functional Operation Until Toc Read
FS-SD550R/FS-SD770R/FS-SD990R Flow of functional operation until TOC read Check Point Slider turns REST Play Key Power ON Confirm that the voltage at the pin4 SW ON. of CN605 is "H"/"L"/"H". Automatic tuning of TE offset Check that the voltage at the... -
Page 17: Method Of Connecting Treatment Device Wire
FS-SD550R/FS-SD770R/FS-SD990R Method of connecting treatment device wire First short-circuit the pickup circuit before removing the pickup.Then carry out the replacement. Refer to "Dismantling and assembling the traverse unit" on page 1-5. KSM-900AAH Sub board (Reverse side) Shorting Flexible cable When the KSM-900AAH mechanism is used, the expansion cable is used as follows. -
Page 18: Description Of Major Ics
FS-SD550R/FS-SD770R/FS-SD990R Description of major ICs BD3861FS-X (IC501) : Audio sound control 1. Pin layout 2. Block diagram 0dB~ Middle2 Middle1 Treble1 Treble2 Bass1 Bass2 -70dB f0=1kHz f0=1kHz f0=10kHz f0=10kHz f0=90Hz f0=90Hz Vcc/2 Vcc/2 0dB~ 0dB~ -59dB -59dB Vcc/2 Vcc/2 Vcc/2... - Page 19 FS-SD550R/FS-SD770R/FS-SD990R LA6541-X(IC602) : Servo Driver 1. Pin Layout & Block Diagram Vref Vin4 Vin3 Level B T L B T L Level RESET shift driver driver shift Level B T L B T L Level Regulator shift driver driver shift...
- Page 20 FS-SD550R/FS-SD770R/FS-SD990R UPD780024AGKB19 (IC701) : CPU 1. Pin layout 2. Block diagram 16-bit TIMER/ PORT0 EVENT COUNTER PORT1 8-bit TIMER/ EVENT COUNTER50 8-bit TIMER/ PORT2 EVENT COUNTER51 PORT3 WATCHDOG TIMER 78K/0 WATCH TIMER PORT4 (32K CORE BYTE) SERIAL PORT5 INTERFACE30 PORT6...
- Page 21 FS-SD550R/FS-SD770R/FS-SD990R 3. Pin function UPD780024AGKB19 Symbol Function CD door motor control signal 0 output CD door motor control signal 1 output Motor speed control output (L:Normal, H:Slow) BLCTL Back light power supply control output AHB ON/OFF control signal output (L:ON, H:OFF)
- Page 22 FS-SD550R/FS-SD770R/FS-SD990R MN662748RPM (IC603) : Digital servo & digital signal processer 1. Pin layout 20 ~ 41 ~ 2.Block diagram AVSS1 LRCKIN(MSEL) 8TIMES AVDD1 BCLK(SSEL) DIGITAL OVER SAMPUNC OUTR SRDATAIN DEEMPHSIS 1BIT DIGITAL FILTER (PSEL) LOGIC IOSEL CLVS BLKCK OUTL CLDCK...
- Page 23 FS-SD550R/FS-SD770R/FS-SD990R 3. Pin function MN662748RPM(2/2) Dymbol I/O Function Symbol I/O Function BCLK Not used Tracking error shunt signal output (H:shunt) PLLF2 LRCK Not used TOFS Not used SRDATA WVEL Not used Not used Power supply (Digital) DVDD1 RF signal input...
- Page 24 FS-SD550R/FS-SD770R/FS-SD990R LA4905 (IC301) : 2ch BTL power IC 1. Pinlayput 2. Block diagram Vcc(SW) STBY Switching Standby SW regulator block Ripple H.L.S. SW B filter drive A B C D SW E H.L.S. : SW OUT1 Higher Level signal SW OUT2...
- Page 25 FS-SD550R/FS-SD770R/FS-SD990R AN22000A(IC601):RF & SERVO AMP 1. Pin layout 2. Block diagram OFTR RF IN C.AGC CBDO COFTR RF OUT OFTR RF_EQ 3TENV NRFDET 3TOUT NRFDET SUBT FEOUT SUBT TEOUT TEBPF VDET VDET VREF GCTL TBAL FBAL CDDG VCC 3. Function...
- Page 26 FS-SD550R/FS-SD770R/FS-SD990R BU1923(IC4) : RDS detector 1.Terminal Layout 2.Pin Function Symbol Function QUAL Non connection QUAL RDS data output VREF Reference voltage output VREF Multiplex signal input +5Vsupply voltage for analog Ground for analog part(0V) Sub carrier output of reconstruction filter...
- Page 27 FS-SD550R/FS-SD770R/FS-SD990R KIA78S06P-T (IC702) : Regulator 1. Pin layout 2. Block diagram 3 INPUT 1 2 3 1 OUTPUT 2 COMMON TA8409F-W (IC108) : Bridge driver 1. Pin layout 2. Pin function FUNCTION SYMBOL INput terminal Supply voltage terminal for logic...
- Page 28 FS-SD550R/FS-SD770R/FS-SD990R LC72136N (IC2) : PLL Frequency synthesizer 1. Pin layout FM/AM LPFOUT LPFIN CLOCK FM/ST/VCO FMIN AM/FM AMIN IFCONT SDIN IFIN 2. Block Phase Reference Detector Driver Charge Pump Swallow Counter Swallow Counter 1/16,1/17 4bit 1/16,1/17 4bit Unlock Detector 12bit...
- Page 29 FS-SD550R/FS-SD770R/FS-SD990R TA2057N (IC1) : FM/AM IF AMP & Detector 1.Block Diagrams IF IN Vstb IF IN QUAD FM OUT AM OUT MPX IN LPF 1 LPF 2 L OUT DIVIDE MUTE DECODE LEVEL AM/FM MONO BUFF IF REQ BUFF IF OUT...
- Page 30 FS-SD550R/FS-SD770R/FS-SD990R BA15218F-XE (IC102) : Dual ope. amp. NJM4580D-D (IC101) : Dual ope amp. 1. Pin layout & Block diagram 1. Pin layout & Block diagram A OUT 1 8 V+ OUT1 1 8 Vcc A -IN 2 7 B OUT...
- Page 31 FS-SD550R / FS-SD770R / FS-SD990R 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.20923 200103(V)