Kenwood KD-C517FM, Service Manual

Page: 3 / 28

KDC-C517FM, C717/Y
3
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
IC1 UPD63711AGC Servo IC
crossing and 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 UPD784214GC091 Mechanism MI-COM. Mechanism and servo control
BR24C02F-W
or CAT24WC02JI
IC8 or M24C02WMN6T EEPROM LPS data back-up memory
or S-24C02BFJA
or 24LC02BT-ISN
IC9 S-80830ANNP 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 outp7V.
When a base goes "Lo", Q19 is turned off, and SVR 8V AVR is outp8.5V.
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 o5V.
Q22 2SC4081 Q21 and Q22 are inverted Darlington connection.
Q30 DTC114YUA Eccentric disc SW
When an eccentric disc is detected, Q30 is turned on, and a preceding
beam is made to be delayed.
Q31 DTC124EUA VIN SW
While spindle servo or disc loading/eject mode is selected, a base goes
"Hi", and Q31 is turned on.
●
CD PLAYER UNIT (X32-5090-0X)
COMPONENT DESCRIPTION
www. xiaoyu163. com
QQ 376315150
9 9
2
8 9
4 2
9 8
TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299