![background image](http://html.mh-extra.com/html/sony/hcd-m90/hcd-m90_service-manual_420804086.webp)
86
HCD-M90
– DAC Board –
IC302
µ
DA1350AH
3
2
1
32
33
VSSD
4
VSSD (C)
5
L3DATA
6
L3CLOCK
7
DATAI
8
BCKI
9
WSI
10
L3MODE
11
NC
VDDD (C)
RESET
VDDA (PLL)
31 VSSA (PLL)
27 VDDA
26 VSSA
25 VSSA (DAC)
24 VREF
23
12
TC
BCKO
29
30
CLKOUT
28 NC
PREEM1
MUTE
44
RTCB
43
VDDD
42
PREEM0
41
NC
40
NC
37
WSO
36
DATAO
39
TEST2
38
NC
35
SELSTATIC
34
TEST1
13
SELCHAN
14
NC
15
SPDIF0
16
SPDIF1
17
V
DDA (DAC)
18
VOUT L
19
SELCLK
20
SELSPDIF
21
LOCK
22
VOUT R
L3
INTERFACE
IEC 958
DECODER
DATA
OUTPUT
INTERFACE
CLOCK
AND
TIMING
CIRCUIT
DATA
INPUT
INTERFACE
AUDIO FEATURE PROCESSOR
INTERPOLATOR
NOISE SHAPER
DAC
DAC
THERMAL
SHUTDOWN
BIPOLAR
TRANSCONDACTANCE
INPUT STAGE
MOS GAIN &
LEVEL SHIFTING
MUTE
NC
NC
+PWVS
OUT
–PWVS
14 15
12
13
10
11
+
–
MOS
OUTPUT
STAGE
SHORT
CIRCUIT
PROTECTION
– MAIN Board –
IC101, 201
TDA7296
www. xiaoyu163. com
QQ 376315150
9
9
2
8
9
4
2
9
8
TEL 13942296513
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299