Sony HBD-E370/E470/ E570/E870/T57 service manual Block Diagram PANEL, Power Supply Section, 31 H

5-6. BLOCK DIAGRAM - PANEL, POWER SUPPLY Section -

SYSTEM CONTROLLER

IC501 (4/4)

HBD-E370/E470/E570/E870/T57

			X500	13	Xout
			6MHz	15	Xin
	REMOTE
	CONTROL			4	SIRCS_IN
	RECEIVER
	IC803
				19	KEY_INT
	D506		D508
S700 - 705, 750		KEY0 KEY2		94		+32.5V
	3
				95,	KEY0 - KEY2
				97,	(Page 31) H	EN. P

D800	LED DRIVE	28 LED_PWM
(ILLUMINATION)
	Q801

E +14V

RECT D954

T903

SUB POWER

TRANSFORMER

	T901	D906, 907
	MAIN POWER
	TRANSFORMER
RECT		D908	B+ SWICH
D931			Q901
			D910

	MAIN POWER
		ISOLATOR
ON/OFF SWITCH
		PC903
	Q943
	SHUNT
		ISOLATOR
	REGULATOR
		PC901
	IC932

POWER CONTROL

IC901

1OCP/SYNC

4VCC

3D

5FB/OLP

FLUORESCENT

INDICATOR

TUBE DRIVER

IC802

VOLTAGE

DETECTOR

IC506

VOLTAGE

E +6V

RECT D942

MAIN POWER

ON/OFF SWITCH

Q949, 950

POWER CONTROL

IC921

16 DIN 7

	DETECTOR
5 FL_DOUT	IC507

D902

RIPPLE FILTER

- 29	SG1 - SG16	CLK	8
14
		STB	9
ND800

7	FL_CLK
3	FL_CS

E -9V

DZ903

Q922

FLUORESCENT	10	33
INDICATOR		-	GR1 - GR10
		42
TUBE
	GRID DRIVE
		32	GR11
	Q804
			VEE
	T800
	DC/DC CONVERTER
	TRANSFORMER

			RESET
AC_CUT	20		SIGNAL
			GENERATOR
			IC503
		RESET
RESET	12	SWITCH
		Q504

E +4V

VOLTAGE DETECT Q969

RECT D955

RECT D943

SHUNT

REGULATOR

ISOLATOR

PC902

RECT	TH901	LINE
		FILTER
D901
		LF901, 902

6BD

5FB/CLP

1D

F901

(AC IN)

D803, 804	OSC
	Q803
RECT

IC923

HBD-E370/E470/E570/E870/T57

33 33