Advertisement
Ref. No.
Application / Function
Q368
Preout mute switch
Q400,401
AM+B switch
Q500,501
Panel detect switch
Q600
DSI (LED) driver
Q703,705
CD mecha "MSTOP" buffer
Q704,706
CD mecha "MRST" buffer
Q707
SoC "RESET" buffer
● CD PLAYER UNIT (X32-5980-02)
Ref. No.
Application / Function
CD Signal Processor & MECHA
IC1
µ-COM RF Amplifi er responding to
CD-RW
IC2
3.3V REG
IC6
4ch BTL Driver
Q3
5V-3.3V Level Shift
Q6
BU3.3V SW
Q7
APC (Auto Power Control)
Q8
Power Supply Control
Q9
Power Supply Control
D1,2
5V Force Voltage Prevention
D3
Laser Diode Protection
COMPONENTS DESCRIPTION
Rear Rch
Active time is "AM" source.
When connect panel, it is on.
DSI lights when this Tr on.
* Panel mecha open or Illumination detect & panel taken off.
DSI turns off when this Tr off.
DSI turns on and off when panel is taken off.
Level shift. (3.3V to 5V)
Level shift. (3.3V to 5V)
Level shift & inverter. (5V to 3.3V)
Focusing, tracking, sled and spindle servo processing.Automatic adjustment (focusing,
tracking, gain, offset and balance) operations. Digital signal processing (DSP, PLL,
sub-codes, CIRC error correction, audio data interpolation processing) operations,
and microcomputer function. Generation of RF signal based on the signals from the
APC circuit and the laser pick-up, and generation of servo error (focusing error and
tracking error) signals. Detection of dropout, anti-shock, track crossing and off-tracking
conditions, included gain control function during CD-RW.
Supplies 3.3V to IC1 and the laser pick-up.
Focusing and tracking coil, sled and spindle motor driver, disc loading and eject operation.
Shifts 5V to 3.3V, or 3.3V to 5V.
Q6 is ON when Q8 or Q9 is ON.
Drives LD (Laser Diode).
Power Supply Control from MECHA µ-COM. Q6 is ON when pin 63 (P ON1) of IC1 is Hi.
Power Supply Control from system µ-COM. Q6 is ON when pin 125 (MSTOP) of IC1 is Hi.
5V Force Voltage Prevention from MECHA µ-COM side.
Prevents reverse bias which is applied to laser. Laser destruction prevention.
KDC-W9537U/W9537UY
KDC-X9006U/X991
Operation / Condition / Compatibility
Operation / Condition / Compatibility
7
Advertisement
