
KDC-C519FM/C719/Y
4
● CD PLAYER UNIT (X32-5470-0x)
Ref. No.
Component Name Application/Function Operation/Condition/Compatibility
RF amplifier built in digital servo and data processor IC. Focusing, tracking, sled
and spindle servo processing. Detection of dropout, anti-shock, track crossing and
IC1 UPD63711AGC Servo IC off-track conditions.
Automatic adjustment (focusing, tracking, gain, offset and balance) operations.
Digital signal processing (DSP, PLL, sub-codes, CD-TEXT decode, CIRC error
correction, audio data interpolaration) operations.
IC4 KIA78L05F +5V AVR Analogue output circuit power supply for D/A converter.
Focusing coil, tracking coil, spindle motor and sled motor driver.
VO1~VO4 and VOL outputs ON/OFF function.
While MUTE1 goes “Hi”, VO1 outputs are turned on.
While MUTE2 goes “Hi”, VO2~VO4 and VOL outputs are turned on.
VIN1 amplifier function (input selection and VREF selection)
IC5 LA6576 Motor driver 1. Input selection.
While VIN SW terminal goes “Lo”, IC pin 15, 16 and 17 inputs are selected.
While VIN SW terminal goes “Hi”, IC pin 15, 18 and 19 inputs are selected.
2. VREF selection.
While VIN SW terminal goes “Lo”, internal VREF (2.5V typical) is selected.
While VIN SW terminal goes “Hi”, external VREF (IC pin 30 input) is selected.
IC7
UPD784214GC098
Mechanism MI-COM. Mechanism and servo control.
IC8 BR24C02F-W EEPROM LPS data back-up memory.
IC9 S-80830CNNP Reset IC When BU 5V voltage is less than 3.0V, IC outputs “Lo”.
IC11 LC3564BT-70 S RAM CD-TEXT data memory.
Q1 MCH6101 APC Laser diode auto power control.
Q4 DTA124EK 0 bit mute (L CH.) When 0 bit mute is activated, an emitter goes “Hi”, and Q4 outputs “Hi”.
Q5 DTA124EUA 0 bit mute (R CH.) When 0 bit mute is activated, an emitter goes “Hi”, and Q5 outputs “Hi”.
Q6 DTC343TK Mute SW (L CH.) When 0 bit mute or A mute drive is activated, a base goes “Hi”, and L channel audio
signal is muted.
Q7 DTC343TK Mute SW (R CH.) When 0 bit mute or A mute drive is activated, a base goes “Hi”, and R channel audio
signal is muted.
Q8 DTA124EK A mute drive When audio mute of IC7 is activated, a base goes “Lo”, and audio mute drive signal
is outputted.
Q9 2SB1202 Servo 5V AVR Q9 is combined with IC5’s pin 26 and 27 , and works as a driver of AVR.
Q10 2SB1295 P-ON 5V SW
While base goes “Lo”, P-ON 5V is supplied to the microprocessor peripheral circuits.
Q11 DTC124EK Reset SW When System Reset has activated, a base goes “Hi”, and Q11 is turned on.
Q13 DTC124EUA CH CON SW
While CH CON or CH-CON2 mode is selected, a base goes “Hi”, and Q13 is turned on.
Q14 DTA143EUA CH MUTE SW
When MUTE REQUEST to H/U is outputted, a base goes “Lo”, and Q14 is turned on.
Q16 2SC4081 SRV 8V AVR Q16 is combined with Q15 (X92-), and works as a pre-driver of AVR.
Q17 DTA143EK SRV 8V AVR SW When Q18's base goes “Hi”, Q17 is turned on, and SVR 8V AVR is working.
Q18 DTC124EUA
Q19 DTC124EUA 7/9V SW When a base goes “Hi”, Q19 is turned on, and SVR 8V AVR is outputting +7V.
When a base goes “Lo”, Q19 is turned off, and SVR 8V AVR is outputting +8.5V.
Q20 DTC124EK BU DETECTION SW While BACKUP is applied, a base goes “Hi”, and Q20 is turned on.
When momentary power down has detected, a base goes “Lo”, and Q20 is turned off.
Q21 2SB1202 BU 5V AVR While BACKUP is applied, AVR outputs +5V.
Q22 2SC4081 Q21 and Q22 are inverted Darlington connection.
COMPONENT DESCRIPTION
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299