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IC102 SM5852FS-E2 (MAIN BOARD) IC204 BA8272F-E2 (MAIN BOARD)

1
2
3
4
5
6
7
8
9
10
16
15
14
13
12
11
DIGITAL
SIGNAL
PROCESSOR
OUTPUT
INTERFACE
SYSTEM
CLOCK
INPUT
INTERFACE
SEQUENTIAL
CONTROL
MUTE
CONTROL
MODE
CONTROL
LRCI
BCKI
DI
CLK
VSS
RSTN
TESTN
MUTEN
DB/DS
MOD2
MOD1
OPT
VDD
LRCO
BCKO
DOUT
12 3 45 6 7
891014 13 12 11
VCC
BUS ON
LINK OFF
CLK OUT
DATA OUT
DATA IN
BUS RESET
BUS DATA
VREF
BUS CLK
GND
BUS ON IN
BUS ON OUT
RESET
RESET
SWITCH

IC401 TC9464FN-EL (MAIN BOARD)

DIGITAL FILTER CIRCUIT
ATTENUATOR OPERATIONAL CIRCUIT
DEEMPHASIS FILTER CIRCUIT
D-∆ MODULATION CIRCUIT
INTERFACE
CIRCUIT
TEST
CIRCUIT
OUTPUT
CIRCUIT
ANALOG
FILTER
TIMING
GENERATOR
OSC
MICROCOMPUTER
INTERFACE
CIRCUIT
OUTPUT
CIRCUIT
ANALOG
FILTER
12 3 45 6 7 8 9 10
20 19 18 17 16 15 14 13
1211
21222324
LRCK
BCK
DATA
HS
(SM)
ATT
(EMP)
SH
(BS)
LA
VDX
XO
XI
GNDX
MCK
VDD
T1
P/S
VDA
RO
GNDA
VR
GNDA
LO
GNDD
ZD
VDA