46
TUNER BOARD
U902: LC72723M
TUNER BOARD
U903: LC7218
Vdda
3
REFERENCE
VOLTAGE
ANTIALIASING
FILTER
DATA
DECODER
VREF
1
VREF
FLOUT
5
CIN
6
PLL
(57kHz)
CLOCK
RECOVERY
(1187.5Hz)
+
_
Vddd
11
Vssd
10
RDDA
14
RDCL
15
MODE
12
RST
13
RDS-ID/READY
16
Vssa
4
MPXIN
2
TEST
7
TEST
57kHz
BPF
(SCF)
SMOOTHING
FILTER
OSC
CLK(4.332MHz)
9
XIN
8
XOUT
RDS-ID
DETECT
RAM
(128bits)
21
22
16
15
20
23
8
7
17
14
13
12
11
10
9
5
4
3
2
18
19
24
1
6
XIN
FMIN
AMIN
CE
DI
CL
D0
OUT0 OUT1
XOUT
PHASE DETECTOR
CHARGE PUMP
REFERENCE
DIVIDER
SWALLOW COUNTER
1/16, 1/17 4 BIT
SHIFT REGISTER
LATCH
UNIVERSAL
COUNTER
1
2
12-BIT PROGRAMMABLE
DIVIDER
SYC
OUT2 OUT3 OUT4 OUT5 OUT6
IN0
IN1
V
SS
V
DD
LCTR
HCTR
PD2
PD1
Summary of Contents for T 751
Page 1: ...NAD SERVICE MANUAL T 751 SURROUND SOUND RECEIVER T 751S U R R O U N D SOUND RECEIVER ...
Page 11: ...13 PCB LAYOUT SPEAKER BOARD DIGITAL BOARD PRIMARY BOARD SECONDARY BOARD TONE BOARD ...
Page 12: ...14 PSU BOARD S VIDEO BOARD LED BOARD AC OUTLET BOARD ...
Page 13: ...15 AC3 DTS BOARD COMPONENT SIDE AC3 DTS BOARD SOLDER SIDE ...
Page 14: ...16 MULTI CHANNEL BOARD MAIN BOARD ...
Page 15: ...17 KEYBOARD COMPONENT SIDE KEYBOARD SOLDER SIDE ...
Page 17: ...19 SURROUND AMPLIFIER BOARD TUNER BOARD VIDEO BOARD AUDIO BOARD ...
Page 64: ...SERVICE MANUAL NAD 2001 T 751 SURROUND SOUND RECEIVER NAD ELECTRONICS INTERNATIONAL TORONTO ...