Marantz DV4500 Manuel de service télécharger pdf (Page 27)

1-7-4

E59M2BLP

Power Supply Block Diagram

IC1006

(SHUNT REGULATOR)

REG

AC1001

AC CORD

F1001

LINE

FILTER

L1001

D1001, D1002

D1004, D1005

Q1003

Q1001

IC1001

ERROR

VOLTAGE DET

T1001

SWITCHING

CONTROL

BRIDGE

RECTIFIER

HOT

HOT CIRCUIT. BE CAREFUL.

D1003

RECTIFIER

D1030

RECTIFIER

D1016

RECTIFIER

Q1016

TO SYSTEM

CONTROL/SERVO

BLOCK DIAGRAM

INV-POWCON

Q1005

Q1011

Q1015

Q1002

Q1014

CN1001

Q1004

-FL

EV+5V

P-ON+11V

EV+3.3V

P-ON+5V

1,2

EV+1.2V

3,4,5

EV+3.3V

8,9

EV+11V

P-ON+5V

P-ON+3.3V

PWRCON

+1.2V

REG.

IC1002

D1006

SCHOTTKY

BARRIER

SCHOTTKY

BARRIER

D1008

AV CBA

TO CN401

Q1008

LATCH

NOTE :

The voltage for parts in hot circuit is measured using

hot GND as a common terminal.

CAUTION !

Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit.

If Main Fuse (F1001) is blown, check to see that all components in the power supply

circuit are not defective before you connect the AC plug to the AC power supply.

Otherwise it may cause some components in the power supply circuit to fail.

CAUTION

FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,

REPLACE ONLY WITH THE SAME TYPE FUSE.

T1.6A L 250V

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Marantz DV4500 Manuel de service Page 27

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