NAD M15 C/AH Service Manual page 30

5.AUDIO CIRCUIT DIAGRAM-2
dgnd
CON202
24pin
C2072 C2073
10u/50 10u/50
C2238
1
220nZ 2
220nZ 3
Lp 4
a5v agnd C2240 Ln 5
6
7
C2076 C2145 8
10u/50 100nZ 9
adrst 10
a5v 11
agnd agnd 12
adfs 13
adsck 14
if use AK5383 replace link by c2072 and c2075
DT2G N.I.
RT2G
pa0 1 2
N.I.
DT2H N.I.
RT2H
pa1 1 2
N.I.
DT2I N.I.
RT2I
pa2 1 2
N.I.
DT2J N.I.
RT2J
ps4 1 2
N.I.
DT2K N.I.
RT2K
cmute 1 2
N.I.
DT2L N.I.
RT2L
smute 1 2
N.I.
DT2M N.I.
RT2M
bmute 1 2
N.I.
dgnd
U2044
74AC00
oscon 1 14
a1 vcc
2 13
b1 a4
3 12
y1 b4
4 11
a2 y4
5v 5 10
b2 b3
6 9
y2 a3
7 8
gnd y3
dgnd
R2265
220RJ
R2264
1MJ
C2325 X2000
33pJ 24.576M
dgnd
DT20 N.I.
RT20
mr1 1 2
N.I.
DT21 N.I.
RT21
mr2 1 2
N.I.
DT22 N.I.
RT22
mr3 1 2
N.I.
DT23 N.I.
RT23
/msgmu 1 2
N.I.
DT24 N.I.
RT24
mMS 1 2
N.I.
dgnd
dgnd
to AUD from VID
near ADC gp split
R2999
10RJ
C2074 C2075
U2041 10u/50 10u/50
AK5394AVS C2239
28
VrefL+ VrefR+
27 220nZ
VrefL- VrefR-
26 220nZ
VcomL VcomR
25 Rp
AinL+ AinR+
24 Rn C2241 agnd a5v
AinL- AinR-
23
zcal Va
22
Vd Agnd
21 C2077 C2144
Dgnd Bgnd
20 agnd 10u/50 100nZ
cal dfs1
19 a5v
/rst hpf
18 dfs
smode2 dfs0
17 12M agnd
smode1 mck
16
LRck fs
15 adda
sck da
R2246D tmckA
120RJ
R2246C tmckB
120RJ
R2246B tmckC
120RJ
R2246A tmckD
120RJ
U2042
74AC153 5v C2148
dgnd 1 16
/g1 vcc
cs1 2 15 dgnd
a1 /g2
dgnd 3 14 cs0
1c3 a0
mcmck 4 13
1c2 2c3
spmck 5 12
1c1 2c2
6 11
1c0 2c1
7 10
1y 2c0
8 9
gnd 2y
dgnd
U2045
5v C2149 74AC109 5v C2150
100nZ 1 16
dgnd 1/clr vcc
5v 5v 2 15
1j 2/clr
dgnd 3 14 1q
1/k 2j
4 13 /q1
1clk 2/k
5v 5 12
1/pre 2clk
1q 6 11 5v
1q 2/pre
/q1 7 10
1/q 2q
8 9
gnd 1/q
dgnd
C2324
33pJ
dgnd DT2A N.I.
RT2A
adrst 1
N.I.
DT2B N.I.
RT2B
/adc 1
N.I.
DT26 N.I. DT2C N.I.
RT26 RT2C
G3 1 2 cs0 1
N.I. N.I.
DT27 N.I. DT2D N.I.
RT27 RT2D
G6 1 2 cs1 1
N.I. N.I.
DT28 N.I. DT2E N.I.
RT28 RT2E
darst 1 2 oscon 1
N.I. N.I.
DT29 N.I. DT2F N.I.
RT29 RT2F
dfs 1 2 locmu 1
N.I. N.I.
dgnd
ir in a
U2501
74HC86 5vs C2502
ir1 out 1 14 100nZ
a1 vcc dgnd
5vs 2 13
b1 a4
ir1 out b 3 12
y1 b4 R2502
ir2 out 4 11
a2 y4 15kJ
5vs 5 10
b2 b3
ir2 out b 6 9
y2 a3
7 8 ir in b
gnd y3
dgnd C2503 dgnd
100pJ
dgnd
U2051
74HC541 5v C2330
dgnd 1 20
/e1 vcc
pbdo 2 19 dgnd
a0 /e2
pbclk 3 18 pdo
a1 y0
pbstb 4 17 pclk
a2 y1
pbs4 5 16 pstb
a3 y2
pba2 6 15 ps4
a4 y3
pba1 7 14 pa2
a5 y4
pba0 8 13 pa1
a6 y5
dgnd 9 12 pa0
a7 y6
10 11
gnd y7
100nZ dgnd
dgnd
U2043
74HC04 5v C2152
dgnd 1 14
a1 vcc
2 13 mist
y1 a6
dgnd 3 12 R2068A
a2 y6 100RJ
4 11 miclk
y2 a5
isclk 5 10 R2068B
a3 y5 100RJ
/isclk R2068D 6 9 ista
100RJ y3 a4
7 8 R2068C
gnd y4 100RJ
dgnd
U2052
74HC595 5v C2153
100nZ mR2 1 16
dgnd q1 vcc
mR3 2 15 mR1
q2 q0
/msgmu 3 14 locda
q3 ser
mMS 4 13 dgnd
R2247 q4 /g
dsp24M hmute 5 12 locst
120RJ q5 rck
G3 6 11 locclk
q6 sck
G6 7 10 5v
q7 /sclr
8 9
gnd q'h
dgnd
R2248
12M
120RJ
U2053
R2263
sp12M 74HC595 5v C2154
120RJ
dfs 1 16
q1 vcc
adrst 2 15 darst
q2 q0
/adc 3 14
q3 ser
cs0 4 13 dgnd
q4 /g
cs1 5 12 locst
q5 rck
oscon 6 11 locclk
q6 sck
2 locmu 7 10 5v
q7 /sclr
8 9
gnd q'h
dgnd
2
U2401
2 74HC137 5v C2333
locclk2 1 16
a0 vcc
locda2 2 15 ogsta
a1 y0
dgnd 3 14 ogstb
a2 y1
2 locst2 4 13 ogstc
/lg y2
ogst 5 12 ogstd
/g2 y3
5v 6 11
g1 y4
7 10
y7 y5
2 8 9
gnd y6
dgnd
2
dgnd
3-19
dgnd
from VID
CON201
16pin
C2501
10u/50
chassis gnd
C2416
R2416
22nK
dgnd
near bracket
U2046
74ACT244
/adc 1 20
1/g vcc
adda 2 19
1a1 2/g
mcmck R2342D 3 18
120RJ 2y4 1y1
dsp24M 4 17
1a2 2a4
R2342B 5 16
120RJ 2y3 1y2
adsckb 6 15
1a3 2a3
R2342C 7 14
120RJ 2y2 1y3
adfsb 8 13
1a4 2a2
R2342A 9 12
120RJ 2y1 1y4
10 11
gnd 2a1
dgnd dgnd
U2047
100nZ dgnd 74AC541
dgnd
1 20
/e1 vcc
sp12M 2 19
a0 /e2
tsckb 3 18
a1 y0
tfsb 4 17
a2 y1
tda3b 5 16
a3 y2
tda2b 6 15
a4 y3
tda1b 7 14
a5 y4
tda0b 8 13
a6 y5
spmckb 9 12
a7 y6
10 11
gnd y7
dgnd
U2048
74HC138
100nZ pa0 1 16
dgnd a0 vcc
pa1 2 15
a1 y0
/mist pa2 3 14
a2 y1
ps4 4 13
/g2a y2
/miclk pstb 5 12
/g2b y3
5v 6 11
g1 y4
/ista 7 10
y7 y5
8 9
gnd y6
dgnd
U2049
74HC138
100nZ pa0 1 16
dgnd a0 vcc
pa1 2 15
a1 y0
pa2 3 14
a2 y1
ps4 4 13
/g2a y2
pclk 5 12
/g2b y3
5v 6 11
g1 y4
7 10
y7 y5
8 9
gnd y6
dgnd
U2050
74HC138
100nZ pa0 1 16
dgnd a0 vcc
pa1 2 15
a1 y0
pa2 3 14
a2 y1
ps4 4 13
/g2a y2
pdo 5 12
/g2b y3
5v 6 11
g1 y4
7 10
y7 y5
8 9
gnd y6
dgnd
100nZ
dgnd
dgnd
5v C2328
100nZ
dgnd
dgnd
R2249A addab
120RJ
mcmckb
R2249B dsp24mb
120RJ
dgnd
R2249C adsck
120RJ
dgnd
R2249D adfs
120RJ
dgnd
5v C2151
100nZ
dgnd
dgnd
R2253A sp12Mb
120RJ
R2253B tsck
120RJ
R2253C tfs
120RJ
R2253D tda3
120RJ
R2257A tda2
120RJ
R2257B tda1
120RJ
R2257C tda0
120RJ
R2257D spmck
120RJ
5v C2329
100nZ
dgnd
R2070A locst2
100RJ
R2070B locst
100RJ
R2070C dast
100RJ
R2070D msgst
100RJ
R2501A ogst
100RJ
R2501B mist
100RJ
R2501C ista
100RJ
R2501D
100RJ
dgnd dgnd
5v C2331
100nZ
dgnd
R2081A locclk2
100RJ
R2081B locclk
100RJ
R2081C daclk
100RJ
R2081D msgclk
100RJ
R2085A ogclk
100RJ
R2085B miclk
100RJ
R2085C isclk
100RJ
R2085D
100RJ
dgnd dgnd
5v C2332
100nZ
dgnd
R2089A locda2
100RJ
R2089B locda
100RJ
R2089C dada
100RJ
R2089D msgda
100RJ
R2093A ogda
100RJ
R2093B mida
100RJ
R2093C isda
100RJ
R2093D
100RJ
dgnd dgnd