MZ-NH1
22
22
MZ-NH1
MUTING
CONTROL
Q352
314
318
315
6
5
DATA+
DATA–
CN451 (1/2)
(USB)
X801
48MHz
239
X802
22.5792MHz
195
196
197
SWITCHING DRIVER,
HEADPHONE AMP
IC351
SDO0
SCK0
XWK1, XWK2,
XWK4
J351
i
EEPROM
IC891
•
SIGNAL PATH
: PLAYBACK
: OPTICAL IN
: LINE IN
: USB input from PC
: MIC IN
: USB output to PC
RVDD
MUTEON
RMC KEY
RVDD
DTCK
KEY-R
RGND
F351
313
131
J301
REG1 B+
A/D CONVERTER, MIC AMP
IC301
B+ SWITCH
Q302
MUTING
Q351
VC01 B+
LINE IN
(OPT)
J302
MIC
(PLUG IN POWER)
133
124
125
203
DOWNLOAD
SET_KEY_1
SET_KEY_1
REC KEY
SET_KEY_2
SWITCH MODULE
REC LED
WK_DET
XWK1
XWK4
REG VSTB B+
S891–2
Hi-MD
PROTECT
DETECT
S893
OPEN/CLOSE
DETECT
S891–1
PROTECT
DETECT
OFF
ON
–1
–2
S892
HALF
LOCK
XWK2
WAKE UP SWITCH
Q803
LED DRIVE
Q491
128
REC LED
CHG_LED
LED DRIVE
Q405
MUTING
Q151, 251
X872
32.768kHz
VB B+
D871
S895
HOLD
SDI1
SDO1
SCK1
XCS_LCD
LCD MODULE
PAUSE
LCD_RST
6-2. BLOCK DIAGRAM – AUDIO Section –