Technics SH-DV250

STEP1
IFOK
BA1
82~85
88
C2HBZC000008
IC802
DIGITAL SIGNAL
PROCESSOR
93
(98)
MICOM
I/F
D-IN/OUT
80 79 78 73 72 69 68 67 66 65 64 63
ADC
(MIC)
ADC
Lch(Rch)
89
BOOT
BA0
IFDI
IFCK
DOUT
DIN
EBCI
EBCO
ELRI
ELRO
SYNC
MIN
MOUT
LIN(RIN)
86
+B3
VDM
87
VRM1
90
VRM2
TST0~3
GNDM
91
92(99)
VSAL
(VSAR)
94(97)
AVRL
(AVRR)
95
(96)
VDL
(VDR)
+B3
12
XI XO
DAC(L/Rch)
AT T
5
(12)
AOL (AOR)
6
(11)
AOLT (AORT)
DAC(Cch)
AT T
AOC
16
AOCT
1518
AICT
VRC
17
VRI
20 21
(30)
+B3
AISLC (AISRT)
VRSL (VRSR)
22
(29)
DAC
(SL/Rch)
AT T
24
(27)
AOSL (AOSR)
25
(26)
GNDASL
(GNDASR)
58
57
EM1
EM0
TP0~13
32~36,
40~47,52
54,
62
38
VDD
VDDR
+B2
51,
70
GND
23
AOSLT
SUR L1
71
/CS
75
CK
DO
CS2
60
STEP0
61
/RESET RST2
59 53
MCK
50
CKO1
49
CKO0
48
FS
+B2
+B2
CCHMIC
VDX
3
+B3
GNDX
100
28
AOSRT
Rch
X
8
(10)
AILT(AIRT)
NJM4558MTE1
IC302
REC L
GNDAC
14
VRL R
7
Q313
C OUT
C2BBFD000246
IC401
SYSTEM CONTROL
DACK
9
DSP ACK
RESET
18
DSP RST
DCS
7
DSP CS
DCK
10
DSP CK
DDO
11
DSPDIO
DDI
12
+B2
1
VCC
35
CK
CK
31
RST1
RST1
32
CS1
CS1
36
DO
DO
33
RST2
RST2
34
CS2
CS2
21
VSS
15
GND
MUT F
29
EXP11
MUT SB
25
EXP15
456
NJ ST
ECK/NJ CK
EDA/NJ DT
ST
CLK
DA
8
SENSE
DSP SNS
2
VREF
XIN
XOUT
19 20
X401
(8MHz)
22
EXP18
AVI6CH
DIN
DOUT
EBCIO
ELRIO
4
(13)
GNDAL (GNDAR)
+B3
9
VDAR
SELF
BOOT
ASP
(AUDIO DIGITAL SIGNAL PROCESSOR)
DELAY RAM
(4kword x 16bit)
TIMING GENERATOR
INTER-
POLATION
FILTER
DECIMATION
FILTER
POLYGONAL LINE
CANCELLATION
RUNNING
AVERAGE
FILTER
TIMING
GENERATOR
BUFFER
AMP
REC L1
ATT
CONT.
AT T
Q308
ATT1
/ERR
76 74
IFDO
26
EXP14
ATT
ATT
Q310
3
AVSS
16
SW1
24
EXP16
STIAV
SL
(1/2)