Sony NHF800 service manual Mute

MZ-NH700/NHF800

6-9. SCHEMATIC DIAGRAM – MAIN Section (6/9) – • See page 36 for IC Block Diagram.

(Page 26)

F1 F2

J1

J2

J3

J4

(6/8)

			R352	C354
				4.7
			220k
				4V
STBYXHP	MUTE	BEEP		Q351
				2SC4738F-Y/GR
				(TPL3)

R356

100k

Q353

SI1410EDH-T1

					REFERENCE
					VOLTAGE SWITCH
4700p	2200p	4700p	2200p	C351	R353
				1	22k

-1

-2

Q352,353

S AOUTL

AOUTR

XHP_STBY

MUTE

AOUTL

AOUTR XHP_STBY MUTE

151C C152 251C 252C R354

Q352

B+ SWITCH

BEEP

BEEP

10k

10k

10k

10k

10k

153R

154R

253R

254R

PW_SW

SWMT

SWBST

INBEEP

GND

VREF_IN

R258

MT_TC

VREF

2.2k

C356

R257

C253

R251

R252

VCC1

LPF1

10

4V

1k

*

*

*

XP4314-TX

R358

2.2M

XRST2

WK_DET

REC_KEY

RMC_KEY

HALF_LOCK

XCS_PWR_IC

(Page 32)

XRST2
WK_DET
REC_KEY
RMC_KEY
HALF_LOCK
XCS_PWR_IC
S_GND	(Page 31)
GND

(Page 29)

AOUTR

AOUTL

					INB		HEADPHONE AMP			BST_NF1
					INA		IC352			LPF2
							TA2131FLG(EL)
R157		C153	R151	R152
1k		*	*	*	BEEP_OUTB		GND			BST_NF2
R158	*				BEEP_						C355
		C153,253								BST_OUT	2.2
2.2k		1 (US)			OUTA	OUTA	_PWR	OUTB
									DET
	2.2	(EXCEPT US)			VCC2					AGC_IN

RMC_DTCK

*	R152,252
4.7k	(US)

F351	F1
0.25A	1.5A
125V	63V

FB1

R355

1M

FB355

C364

J352

RVDD

VB

2.2k (EXCEPT US)

		(AEP,UK,EE)	RMC_KEY
*	R151,251	R261	RADIO_ON
4.7k	(US)
		22
10k	(EXCEPT US)

FB354

FB353

FB2

FB357

0.1

DTCK

KEY_R

STAT

RGND

							R161
R351							22
47
				C160
L351				220			R160
				4V
0							*
C352	C353	C154	C254	C260			R260
				220			*
10
	0.1	0.22	0.22	4V
6.3V
		R155	R255		R156	R256	* R160,260
							0 (EXCEPT AEP,UK,EE)
		10	10		4.7k	4.7k

10 (AEP,UK,EE)

R359 0

R162 0

R262 0

D352

NNCD6.8H-T1

D151D251

02DZ2.4-Z(TPH3)02DZ2.4-Z(TPH3)

J 5

H1

(Page 28)

MZ-NH700/NHF800

C361 C363

0.010.1

30 30