Pioneer CX-3195 서비스 매뉴얼 - 페이지 17

{카테고리_이름} Pioneer CX-3195에 대한 서비스 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Pioneer CX-3195 27 페이지. Cd mechanism module

1.4 POWER SUPPLY AND LOADING BLOCK

For the power supply for this system, the VD (7.5 ± 0.5 V) and the VDD (3.3 ± 0.165 V), which are supplied from the

motherboard, are used. The two power supplies, the VD mentioned above (for the drive system), and the VDD (for the LSI:

3.3 V), are used in this system.

The CPU of the LSI controls ON/OFF with "CONT", except for Load/Eject of the CD driver. For ON/OFF of the Loading

drive, no particular control terminals are available, but the input signal "LOEJ" assumes an equivalent role. Also, the LCO

output switches LOADING MODE and CARRIAGE MODE with "CLCONT".

CN901

PGND

GND

VDD

Fig.1.4.1 Power supply/loading system circuit block

CLCONT

Fig.1.4.2 Loading/carriage mode shift

LCOP

IC301

MOTOR

BA5839FP

LCOM

Loading Mode

CLCONT

43 5

3.3VDD

S903 S905 S904

Carriage Mode

Loading Mode

CX-3195

IC201

PE5547A

S901