7
BLOCK DIAGRAM
AM LOOP
ANT
FM
ANT
FRONT
END
ENV172D3G1
VFD
Protect
L
R
CPU
KEY
MA
TRIX
T
rigger Out
REMOTE
SENSOR
CD
DISC
VIDEO
AUX
T
APE-1
OUT
T
APE-2
OUT
TC9273
T
APE-2
IN
PRE OUT
T
APE-1
IN (Mon)
S1
1
12
17
PLL
LC72723M
AM/FM IF
LA1837
TUNER
DIODE
MA
TRIX
NAD LINK
IN-OUT
MAIN
POWER SUPPL
Y
SPEAKER
OUT
ST
AND BY
POWER SUPPL
Y
RELA
Y
RELA
Y
POWER
AMP
.
+5V CPU
AC INPUT
AC INPUT
VT
VT
ce
data
clk
RDS-CLK
RDS-SIG
RDS-DA
T
A
data out
(#1)=Power On
(#2)=Protect (Flash 2Hz)
(#1)+(#2)=Standby
(#1)
(#2)
LC7218
Locking SW
,
T
one defeat
ST/MO, MUTE, SMETER
TUNE
FM
OSC/IF
AM
OSC/IF
OUT
AUDIO
AUDIO IN
IN
S2
S3
S4
S5
S6
S7
S8
S9
S10
VOLUME
MOT
ORIZE
MUTE
Содержание C730
Страница 1: ...NAD SERVICE MANUAL C 730 STEREO RECEIVER C 730STEREO RECEIVER ...
Страница 12: ...PCB LAYOUT KEY BOARD TOP VIEW BOTTOM VIEW PHONE BOARD LED BOARD SECONDARY BOARD PRIMARY BOARD 12 ...
Страница 13: ...13 MAIN BOARD ...
Страница 14: ...14 TUNER BOARD PSU BOARD POWER SWITCH BOARD SPEAKER BOARD ...
Страница 36: ...SERVICE MANUAL NAD 2001 C 730 STEREO RECEIVER NAD ELECTRONICS INTERNATIONAL TORONTO CANADA ...