Sanyo DC-MP4500(BK)/XE Service Manual page 15

IC BLOCK DIAGRAM & DESCRIPTION
IC190 M11L16161SA-45T (DRAM)
WE
RAS CONTROL
LOGIC
CASL
CASH
CLOCK
GENERATOR
COLUMN
ADDRESS
10
BUFFER
A0
A1
A2
REFRESH
CONTROLER
A3
A4
A5
REFRESH
A6
COUNTER
A7
9
A8
10
A9
ROW
ADDRESS
10
BUFFER(10)
IC211 TA2149BFN (AM/FM 1 Chip Tuner IC)
FM RF AM
RF OUT Vcc RF IN
24 23 22
AM
MIX
FMRF
1 2 3
RF FM AM
GND RF IN LOW
CUT
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10
FM AM OSC
OSC OSC OUT
21 20 19
AM
OSC
FM
OSC
BUFF
1/1 or
1/16
LEVEL
BUFF
FM
AMIF
MIX
4 5
MIX Vcc AM
OUT IF IN
DATA-IN BUFFER
DATA-OUT
COLUMN
10
DECODER
1024
16
SENSE AMPLIFIERS
I/O GATING
1024 x 16
1024 x 1024 x 16
MEMORY
1024
ARRAY
ST IF
LED REQ
18 17
IF
REQ
SW
ST
AF
BUFF
IF
BUFF
1/8
DET
AM
DET
AGC
FMIF
6 7 8
FM GND
IF IN
- 14 -
IO0
:
16
:
IO15
BUFFER
OE
16
Vss
GENERATOR
DET MPX
IN LPF1
OUT
16 15 14
AF
VCO
DECODE
DIVIDE
FM
ST/MO
DET
FM/AM
MJTE
9 10 11
AGC QUAD R-OUT
Vcc
Vss
LPF2
13
12
L-OUT