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Sony MZ-NH1 6-2.BLOCK DIAGRAM – AUDIO Section –

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MZ-NH1

6-2. BLOCK DIAGRAM – AUDIO Section –

J301

LINE IN

(OPT)

B+ SWITCH

				SWITCHING DRIVER,			MUTEON
				HEADPHONE AMP			MUTEON	C	(Page 23)
				IC351				C	(Page 23)
	BEEP	199	2	BEEP_IN	OUT_	17
					BEEP2
	DCLSOUTL	151	3	DIN2	OUT2	15	J351
							J351
FROM IC801 (1/3)						MUTING	i
(MD SERVO SECTION)	DCLSOUTR					Q351
	DCLSOUTR	150	4	DIN1	OUT1	7
	FS512	312	23	OUT_BEEP1		5
	FS512	312	23	MCK			F351
	D_EN2	296	26	EN2		MUTING	F351
	D_EN1	295	25	EN1		MUTING	RVDD
	D_EN1	295	25	EN1		Q151, 251	RVDD
173 DIN	D_ENREG	211	27	ENREG			DTCK
	D_VCONT_PWM	243	11	VCONT		MUTING	KEY-R
						MUTING

Q302

J302

MIC

(PLUG IN POWER)

VC01 B+

A/D CONVERTER, MIC AMP

CONTROL

RGND

Q352

IC301

212

28

313

15

10

RMC KEY

14

131

11

16

12

13

CN451 (1/2)

D871

18

(USB)

VB B+

19

6

314

DATA+

318

5

4

315

DATA–

X872

32.768kHz

X801

X802

12

48MHz

22.5792MHz

REG1 B+

•SIGNAL PATH

: PLAYBACK

: OPTICAL IN

: LINE IN

: USB input from PC

: USB output to PC

: MIC IN

319

320

310

311

247

WAKE UP SWITCH

EEPROM

SYSTEM CONTROLLER,

IC891

Q803

DIGITAL SIGNAL PROCESSOR

2

REG VSTB B+

11

REC LED/ACCESS_

HALF LOCK SW/ OPEN SW

12

1

SET KEY 1 SET KEY 2

SI1 SO1 SCK1 XCS LCD XRST LCD

SDO0 SCK0

128

133

124 125

203

213 214 215 236 192

LED DRIVE

LED DRIVE

Q491

Q405

OFF

S895

–1

–2

ON

HOLD

SDO0, SCK0

WKDET

DOWNLOAD

KEYSET1 KEYSET2

RECLED

CHGLED

RECLED

KEYSET1

RECKEY

PAUSE

SDI1 SDO1

SCK1 LCDXCS RSTLCD

S892

S893

S891–1

S891–2

HALF

OPEN/CLOSE

PROTECT

Hi-MD

LOCK

DETECT

DETECT

PROTECT

DETECT

SWITCH MODULE

LCD MODULE

XWK1, XWK2,

XWK1

XWK4

XWK2

XWK4

MZ-NH1

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Contents

SPECIFICATIONS Sony Corporation Personal Audio Company Page TABLE OF CONTENTS SERVICING NOTES GENERAL 3.DISASSEMBLY TEST MODE NOTES ON HANDLING THE OPTICAL PICK-UPBLOCK OR BASE UNIT NOTES ON LASER DIODE EMISSION CHECK UNLEADED SOLDER : LEAD FREE MARK Installing The recorder The display window of the recorder The headphones/earphones with a remote control The display window of the remote control 3-1.DISASSEMBLY FLOW Note 1: Note 2: 3-2.BOTTOM PANEL SUB ASSY 3-3.MAIN BOARD 3-4.UPPER PANEL SUB ASSY 3-5.CONTROL ORNAMENT BLOCK 3-6.MECHANISM DECK ASSY (MT-MZNH1-181) 3-7.GEAR (BSA), GEAR (SB) 3-8.OP SERVICE ASSY 3-10.HOLDER ASSY Ver Ver Manual AdjF MENU MD1Run HM3Run OfsRun OPChk ResOK SET OK ## RMC OK ## Temp SetTmp POWER PwrAdj VC1 VBsAdj ChrgLi DESIGN LrefPw DistF 3-9.Resume Clear 3-10.Releasing The Test Mode 6-1.BLOCK DIAGRAM – MD SERVO Section – 6-2.BLOCK DIAGRAM – AUDIO Section – 4-3.BLOCK DIAGRAM – POWER SUPPLY Section – •Note For Printed Wiring Boards and Schematic Diagrams Note on Printed Wiring Board: Note on Schematic Diagram: •Waveforms IC701 1 (VI1), 2 (WI1) SCHEMATIC DIAGRAM – MAIN Section (1/9) – See page 36 for IC Block Diagrams SCHEMATIC DIAGRAM – MAIN Section (3/9) – See page 36 for IC Block Diagram SCHEMATIC DIAGRAM – MAIN Section (5/9) – SCHEMATIC DIAGRAM – MAIN Section (6/9) – Page SCHEMATIC DIAGRAM – MAIN Section (8/9) – SCHEMATIC DIAGRAM – MAIN Section (9/9) – 6-13.PRINTED WIRING BOARD – MAIN Section (1/2) – : Uses unleaded solder •Semiconductor Location Ref. No Location 6-14.PRINTED WIRING BOARD – MAIN Section (2/2) – : Uses unleaded solder Ref. No. Location CXD9811K IC401 MM1655LCBE IC501 SN761059ZQLR IC601 SC901585VAR2 IC602 R1160N121B-TR-FA IC701 SC901583EPR2 IC871 R2061K01-E2 IC891 AK6514CN-L IC901 SC901584EPR2 IC902 XC62HR5502MR •IC Pin Function Description IC801 CXD2681-222GG(SYSTEM CONTROLLER, DIGITAL SIGNAL PROCESSOR) Page Page Page Page Page Page NOTE: 7-1.PANEL SECTION MAIN SECTION 7-3.MECHANISM DECK SECTION