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MZ-NH700/NHF800
2222
MZ-NH700/NHF800
+1.2V
REGULATOR
IC302
REFERENCE VOLTAGE
SWITCHING
Q351
SYSTEM CONTROLLER,
DIGITAL SIGNAL PROCESSOR
IC801 (2/3)
XMUTE/MUTE
211
212
PF3/RTG3
199BEEP
314UDP
318UPUEN
315UDM
3
2
DATA+
DATA–
1
VBUS
CN451
(USB)
320
UOSCO
319
UOSCI
X801
48MHz
311
OSCO
239XCS_NV
310
OSCI
X802
22.5792MHz
195SI0
196SO0
197SCK0
2
24
4
23
22
21
1517 18
HEADPHONE
AMP
IC352
OUTA
OUTB
BEEP_OUTA
BEEP_OUTB
7
SDT0
VREF_IN
INA
INB
PW_SW
MT_SW
BEEP_IN
28
LIN
1
RIN
3
AVDD
19
PRER
18
PREL
13
SDO0
SCK0
F
SDO0, SCK0
E
VBUS
B
XRST2
C
XWK1, XWK2,
XWK4
J352
i
1
2
3
4
XCS
SCK
DI
DO
EEPROM
IC892
• SIGNAL PATH
: PLAYBACK
: OPTICAL IN
: LINE IN
: USB input from PC
: MIC IN
: USB output to PC
RVDD
D
RMC KEY
RVDD
DTCK
KEY-R
RGND
VB
VB
F351
STAT
313DTCK
131RMC_KEY
134RADIO_ON
147
AOUTL
148
AOUTR
173 D IN
200 XOPT_CTL
185 OPT_DET
J301
186XJACK_DET
307 ADDT
306 F S256
309 XBCK
308 L RCK
190 XPD_ADC
189 XCS_ADC
REG1 B+
A/D CONVERTER, MIC AMP
IC301
FROM IC801 (1/3)
(MD SERVO SECTION)
187 XMIC_DET
B+ SWITCH
Q301
9
MCLK
8
BCLK
10
LRCK
14
PDN
11
CDTI
12
CCLK
13
CSN
VC01 B+
LINE IN
(OPT)
J302
MIC
(PLUG IN POWER)
DDC3 B+
133
REC_KEY/DOWNLOAD
248
JOG_A
249
JOG_B
227
XHOLD_SW
183
PAUSE_KEY
124
SET_KEY_1
125
SET_KEY_2
213
SI1
214
SO1
215
SCK1
236
XCS_LCD
192
XRST_LCD
RESET
SWITCH
Q471
T_MARK
JOG_A
JOG_B
HOLD
PAUSE
SET_KEY_1
SET_KEY_2
SDI
SDO
SCK
CS
LCD
MODULE
RST
XWK
DVDD
XWK1
XWK4
DDC3 B+
REG VSTB B+
+2.4V
REGULATOR
IC471
253
S894–2
Hi-MD
PROTECT
DETECT
HIMD_PROTECT
188
S893
OPEN/CLOSE
DETECT
OPEN_CLOSE_SW
184
S894–1
PROTECT
DETECT
PROTECT
–1 –2
135
S892
HALF
LOCK
XWK2
HALF_LOCK_SW/
OPEN_SW
VB B+
193
USB_WAKE
WAKE UP SWITCH
Q803
128
WK_DET
F1
6-2. BLOCK DIAGRAM – AUDIO Section –
(Page 23)
(Page 23)
(Page 23)
(Page 23)
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