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FS-SD1000

1-25

Standby SW

Switching
regulator block

CH 1

CH 2

ON MUTE
muting circuit

Pop noise
prevention circuit

Nonlinear amplifier/output stage

Power supply/ground shorting
protection circuit
Overvoltage/thermal protection
circuit

Input amplifier

BEEP
amplifier

Input amplifier

Nonlinear/output stage

Amplifier output stage

SW
drive

A B C D

H.L.S.

STBY

D.C

PRE GND

IN 1

IN 2

ON TIME

BEEP

Vcc

Vcc(SW)

SW B

SW E

SW OUT1

SW OUT2

SW GND

+OUT 1

+OUT 2

N.C.

-OUT 1

-OUT 2

PWR GND 1

PWR GND 2

H.L.S. :
Higher
Level signal
selector

Ripple
filter

LA4905 (IC301) : 2ch BTL power IC

1. Pinlayput

2. Block diagram

Содержание FS-SD1000

Страница 1: ...UME CD FADE MUTING SP PW1000 SP FSSD1000 CA FSSD1000 SP FSSD1000 Contents Safety Precautions Preventing static electricity Important for laser products Disassembly method Maintenance of laser pickup Replacement of laser pickup Flow of functional operation unit TOC read Method of connecting treatment device wire Description of major ICs 1 2 1 3 1 4 1 5 1 16 1 16 1 17 1 18 1 19 31 This model not hav...

Страница 2: ...abinet 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 path t...

Страница 3: ...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 4 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 usin...

Страница 4: ...ålning är denna del är öppnad och spårren är urkopplad Betrakta ej strålen VARO Avattaessa ja suojalukitus ohitettaessa olet alttiina näkymättömälle lasersäteilylle Älä katso säteeseen ADVARSEL Usynlig laserstråling ved åbning når sikkerhedsafbrydere er ude af funktion Undgå udsættelse for stråling ADVARSEL Usynlig laserstråling ved åpning når sikkerhetsbryteren er avslott unngå utsettelse for str...

Страница 5: ... the upper side of the body 1 Removing the CD door See Fig 1 Prior to performing the following procedure remove the CD door the rear cover Remove the four screws D attaching the side covers on the bottom of the body Move the left cover backward and remove outward Also remove the right cover in the same way 1 2 Removing the right and left covers See Fig 3 Disassembly method Fig 1 Fig 2 Fig 3 B B B ...

Страница 6: ... the card wire from connector CN104 and CN105 of the main board in the front part of the body Disconnect the card wire from CN101 of the main board on the right side and the wire from CN705 and CN708 of the CD mechanism base assembly respectively Remove the four screws F attaching the CD mechanism base assembly on the upper side of the body Remove the screw I attaching the earth terminal on the ri...

Страница 7: ...e door arms pull the CD mechanism base assembly toward the front and disconnect the wire from connector CN804 on the left side of the door arm board Pull out the CD mechanism base assembly toward the front 3 4 5 6 Fig 9 Fig 10 Fig 11 F I CD mechanism base assembly Main board CN101 CN708 F CD mechanism base assembly CN804 CD mechanism base assembly CN301 G Power amplifier board Fig 13 Gear a Fig 12...

Страница 8: ...board R and L See Fig 15 to 20 When the door arms incline the door arm assembly and the door arm board R and L may not be removed ATTENTION Remove the four screws H on the upper side and the one screw I on the left side of the body Remove the four screws J attaching the door arm board L and R on both sides of the door arm assembly 2 3 Fig 15 Fig 16 Fig 18 Fig 20 Fig 17 Fig 19 Door arm Door arm boa...

Страница 9: ...bly 1 2 Removing the transformer assembly See Fig 21 Prior to performing the following procedure remove the CD mechanism base assembly and the door arm assembly Disconnect the wires from connector CN106 on the main board and release it from the cord stopper Remove the three screws N attaching the gear motor assembly Remove the gear motor assembly with the gear motor stopper Remove the belt from th...

Страница 10: ... front panel board inside the front panel assembly 1 Removing the front panel board See Fig 28 Front panel assembly Prior to performing the following procedure remove the CD mechanism base assembly and the door arm assembly To facilitate operation process remove the gear motor assembly before performing the following procedure Disconnect the wires from connector CN102 CN106 CN191 CN192 CN193 and C...

Страница 11: ...e assembly and disconnect the wires from connector CN703 and CN706 on the CD mechanism board Remove the seven screws U attaching the CD mechanism cover and the CD mechanism board Turn back the CD mechanism assembly and detach the CD mechanism cover while pulling the CD mechanism assembly outward to release the two joint tabs marked c 1 2 3 Removing the CD mechanism board CD mechanism assembly See ...

Страница 12: ...rom the three shafts of the CD mechanism cover 4 5 6 When reassembling confirm that the cushion of the CD mechanism assembly is reattached to the three shafts ATTENTION Remove the CD mechanism board from the CD mechanism cover 7 Fig 33 Fig 32 CD mechanism assembly CD mechanism cover CD mechanism board CN605 Cushion Cushion CD mechanism cover CD mechanism board Shafts Short circuit land Sub board C...

Страница 13: ...connector CN502 on the jack board Remove the six screws W attaching the switch board 1 2 Removing the switch board See Fig 35 Disconnect the harness from connector CN706 on the CD mechanism board on the underside of the CD mechanism base assembly Push inward the two tabs d attaching the LED board case and release them Pull out the LED board from the LED board case 1 2 3 Removing the LED board See ...

Страница 14: ...emove the three screws B on the amplifier 1 2 Amplifier Removing the cover See Fig 2 Cut off the band under the input amplifier filter board assembly Disconnect the harness from connector CN251 Remove the two screws C attaching the input amplifier filter board assembly Pull and disconnect connector CN211 from the body 1 2 3 Removing the Input amplifier filter board assembly See Fig 3 Fig 1 Amplifi...

Страница 15: ...ly Disconnect the harness from connector CN291 on the amplifier board assembly and from CN299 on the power board assembly Remove the four screws G attaching the transformer assembly 1 2 3 Removing the transformer assembly See Fig 6 Disconnect the harness from connector CN299 on the power board assembly and cut off the band Remove the three screws H assembly Remove the cord stopper 1 2 3 Removing t...

Страница 16: ...fe of the laser diode has expired the following symptoms will appear 1 The level of RF output EFM output amplitude of eye pattern will below Is the level of RFOUT under 1 25V 0 22Vp p Replace it NO YES O K 3 Semi fixed resistor on the APC PC board The semi fixed resistor on the APC printed circuit board which is attached to the pickup is used to adjust the laser power Since this adjustment should ...

Страница 17: ...Automatic measurement of TE amplitude and automatic tuning of TE balance 500mv div 2ms div Fig 1 Approx 3sec pin 25 of IC601 TE Approx 1 8V VREF Tracking error waveform at TOC reading Power ON Play Key Confirm that the Focus error S cuve signal at the pin28 of IC603 is approx 2Vp p Confirm that the signal from pin24 IC603 is 0V as a accelerated pulse during approx 400ms Confirm the waveform of the...

Страница 18: ...fore removing the pickup Then carry out the replacement Refer to Disassembling and assembling the traverse unit When the KSM 900AAH mechanism is used the expansion cable is used as follows EXTFSSD5 JIG extension wire QUQB12 0840CJ 8pin card wire QUQB12 0940DJ 9pin card wire QUQB12 1840DJ 18pin card wire QUQB12 1640DJ 16pin card wire EXTKSM900 JIG Sub board ...

Страница 19: ...EF VDET TEBPF TEOUT TEN FEN FEOUT GCTL FBAL TBAL E F D B C A Earth terminal VREF output terminal VDET output terminal VDET input terminal TE Amp output terminal TE Amp reversing input terminal FE Amp reversing input terminal FE Amp output terminal Terminal GCTL APC FBAL control terminal TBAL control terminal Tracking signal input terminal 1 Tracking signal input terminal 2 Focus signal input termi...

Страница 20: ...4 BYTE 16 bit TIMER EVENT COUNTER 8 bit TIMER EVENT COUNTER50 PORT0 PORT1 PORT2 PORT3 PORT4 PORT5 PORT6 PORT7 EXTERNAL ACCESS SYSTEM CONTROL 8 bit TIMER EVENT COUNTER51 SERIAL INTERFACE30 SERIAL INTERFACE31 UART0 INTERRUPT CONTROL A D CONVERTER VDD0 VDD1 Vss0 Vss1 IC BUZZER OUTPUT CLOCK OUTPUT CONTROL WATCHDOG TIMER WATCH TIMER ...

Страница 21: ...ction for safety CD door motor lock detection signal input Version detection Reference voltage input for A D converter Analog power supply for A D converter System reset signal input Sub clock Sub clock signal input 32 768kHz Connect to VSS0 or VSS1 Main clock Main clock signal input 4 19MHz Ground without port section Remote controller signal input RDS clock signal input Sub clock OSC control sig...

Страница 22: ...eration amplifier 1 Pin layout 2 Block diagram Q19 Q17 Q16 OTHER CH R9 R6 R8 R7 R5 R4 R3 R2 R1 D1 C1 Q18 Q13 Q11 Q8 Q5 Vcc VEE OUTPUT IN IN Q1 Q3 Q4 Q2 C2 Q9 Q6 Q7 Q10 Q12 Q14 Q15 Q114 GP1U271X IC801 Receiver for remote controller GND B P F VCC Vout Amp Limiter Integrator Comparator Demodulator ...

Страница 23: ...1 BASS22 OUT1 BASS11 BASS12 MID11 MID12 MID21 MID22 TRE2 TRE1 VOL1 VOL2 GOUT2 GOUT1 CH1 input pin A CH2 input pin A CH1 input pin B CH2 input pin B CH1 input pin C CH2 input pin C CH1 input pin D CH2 input pin D CH1 input pin E CH2 input pin E Microphone input pin Filter pin Ground pin Serial data latch receiving pin Serial clock receiving pin Power supply pin CH2 output pin CH2 bass filter settin...

Страница 24: ...06P T IC702 Regulator 1 Pin layout 2 Block diagram 1 2 3 A OUT 1 A IN 2 A IN 3 V 4 8 V 7 B OUT 6 B IN 5 B IN A B NJM4580D D IC101 IC211 IC213 Dual ope amp 1 Pin layout Block diagram 1 2 3 4 5 6 7 14 13 12 11 10 9 8 1A 1Y 2A 2Y 3A 3Y GND VCC 6A 6Y 5A 5Y 4A 4Y A L H Y H L TC74HCU04AP IC251 2ch NOR gate 1 Pin layout Block diagram 2 True table ...

Страница 25: ...rting protection circuit Overvoltage thermal protection circuit Input amplifier BEEP amplifier Input amplifier A B D C Nonlinear output stage Amplifier output stage SW drive A B C D H L S STBY D C PRE GND IN 1 IN 2 ON TIME BEEP Vcc Vcc SW SW B SW E SW OUT1 SW OUT2 SW GND OUT 1 OUT 2 N C OUT 1 OUT 2 PWR GND 1 PWR GND 2 H L S Higher Level signal selector Ripple filter LA4905 IC301 2ch BTL power IC 1...

Страница 26: ...uts ON OFF BTL AMP 1 input pin BTL AMP 1 input pin For gain adjustment BTL AMP 1 input pin Non inverting side BTL AMP 1 input pin Inverting side BTL AMP 2 input pin Inverting side BTL AMP 2 input pin Non inverting side BTL AMP 2 input pin For gain adjustment BTL AMP 2 input pin External transistor collector PNP connection 5V power supply output External transistor PNP base connection Reset output ...

Страница 27: ...t output port Input output port Data input output Function IF counter signal input IF signal output Not use AM Local OSC signal output FM Local OSC signal input Power suplly VDD 4 5 5 5V When power ON Reset circuit move PLL charge pump output H Local OSC frequency Height than Reference frequency L Low Agreement Height impedance Input for active lowpassfilter of PLL Output for active lowpassfilter ...

Страница 28: ...k pulse output Tracking drive output Focus drive output Reference voltage input pin for D A output block TVD FOD FBA TBAL Focus Balance adjust signal output Tracking Balance adjust signal output Focus error signal input Analog input Tracking error signal input Analog input RF envelope signal input Analog input Vibration detect signal input H detect Off track signal input H off track Track cross si...

Страница 29: ...R8 TR12 TR10 TR11 TR23 TR24 TR22 TR21 R14 R16 R19 TR20 R15 R16 R17 TR19 R18 C6 D7 TR14 TR13 C3 R12 TR16 TR15 TR17 R13 TR31 R31 D31 D32 TR32 R32 Comparator Comparator D34 D36 D35 D33 SUB 1 3 5 4 2 7 6 8 21 22 9 16 10 14 15 11 12 13 17 18 19 20 STK411 210E IC221 Power amplifier 1 Block diagram ...

Страница 30: ...Lch Voltage controlled terminal When voltage of terminal is MONO at H and ST at L When voltage of terminal is AM at H and FM at L Multi plex signal input AM detection signal output FM detection signal output Bypass to FMIF Input of AMIF signal Fixed voltage output terminal Output terminal for AM mixer Input of FMIF signal Function Function 2 Pin function 1 Block d iagrams 24 23 22 21 20 19 18 17 1...

Страница 31: ... Mode IN1 0 1 0 1 IN2 0 0 1 1 OUT1 H L L OUT2 L H L MOTOR STOP CW CCW CCW CW BRAKE 2 10 1 Standby circuit Heat interception IN1 IN2 GND 5 M OUT1 OUT2 8 3 9 7 Vref Vs Vcc TA8409F W IC108 Motor driver 1 Block diagram 2 Pin function ...

Страница 32: ...200107 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 21011 FS SD1000 ...

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