Sanyo DC-TS765KR Service Manual page 25

IC BLOCK DIAGRAM & DESCRIPTION
IC131 M11L416256(256K x 16 DRAM)
WE
RAS
CONTROL
LOGIC
CASL
CASH
CLOCK
GENERATOR
COLUMN
9
ADDRESS
BUFFER
A0
A1
REFRESH
A2
CONTROLER
A3
A4
REFRESH
A5
COUNTER
A6
A7
9 9
A8
ROW.
9
ADDRESS
BUFFERS(9)
PIN DESCRIPTIONS
PIN NO. PIN NAME
16~19,22~26 A0~A8
14
RAS
28
CASH
29
CASL
13
WE
27
OE
2~5,7~10,31~34,36~39 I/O0 ~ I/O15 Input / Output
1,6,20 V
CC
21,35,40 V
SS
11,12,15,30 NC
IC160 LA6560(Motor Driverl)
I
1
FWD
N
Thermal Shutdown
P
U
2
REV
T
3
VCC2
O
U
4
VL0–
C
T
T
P
R
U
5
VL0+
L
T
L
6
V04+
S
E
H
V
I
E
F
7
V04– L
T
L
8
V03+
S
E
H
V
I
E
F
9
V03– L
T
POWER
SYSTEM
GND
FR FR
L
10
V02+ S
E
H
V
I
E
F
11 L
V02–
T
L
12
V01+
S
E
H
V
I
E
F
13
V01– L
T
14
VCC1
22k
11k
15
VIN1
16
VIN1–A
AMP-A
17
VIN1+A
AMP-B
18
VIN1–B
DATA-IN BUFFER
DATA-OUT
BUFFER
COLUMN
9
DECODER
16
512
16
SENSE AMPLIFIERS
I/O GATING 8
512 x 16
512 x 512 x 16
MEMORY
512
9 ARRAY
V
CC
V GENERATOR
BB
V
SS
TYPE DESCRIPTION
Address Input
Input
Row Address : A0~A8
Column Address : A0~A8
Input Row Address Strobe
Input Column Address Strobe / Upper Byte Control
Input Column Address Strobe / Lower Byte Control
Input Write Enable
Input Output Enable
Data Input / Output
Supply Power, 3.3V
Ground Ground
- No Connect
SIGNAL SYSTEM GND
36
S-GND
(LOAD OUTPUT Voltage Setting)
35
VCONT
BTL-AMP OUTPUT
34
MUTE MUTE
ON/OFF
33
VIN4
22k
32
VIN4–
11k
31
VIN4+
30
VREF-IN
29
VIN1/VREF-SW VIN1(VREF)-SW
28
VREF-OUT(CH1)
POWER
SYSTEM
GND
FR FR
5VREG(PNP Ext.)
27
REG-OUT
26
REG-IN
22k
25
VIN3+
11k
24 VIN3–
23 VIN3
22k
22
VIN2+
11k
21 VIN2–
20 VIN2
19 VIN1+B
IC231 LA1844ML(AM/FM-IF/MPX)
IO0
16 :
IO15 24 23 22
ALC
AM
AM
MIX
OSC
BUFF
OE
LEVEL
AM/FM
DET
IF
S-CURVE
BUFF
FM
FM
IF
DET
REG
1 2 3
IC241 LC72121M-D(PLL)
Vssx 2
XIN 1
XOUT 24
FMIN 17 1/2
AMIN 16
CE
3
DI
4
CCB
I / F
CL
5
6
DO
POWER
V 18 ON
DD
RESET
Vssd 15
IC402 KA78R12STU(Low Dropout Voltage Regulator)
Vin 1
THERMAL SHUTDOWN
BANDGAP REFERENCE
HIGH/LOW
Vdis 4
1.4V
- 25 -
21 20 19 18 17 16
AM
RF.AMP
DECODER
AGC
ANTI-BIRDIE
P-DET
AM STEREO
AM
SW
DET
IF
COMP
VCO FF
304kHz 38k
TUNING
DRIVE
GND
VCC
4 5 6 7 8 9
REFERENCE PHASE DETECTOR
DIVIDER CHARGE PUMP
SWALLOW COUNTER UNLOCK
1/16, 1/17 4bits DETECTOR
12bits PROGRAMMABLE
DIVIDER
UNIVERSAL
DATA SHIFT REGISTER LATCH
COUNTER
9 14
7 8 10 11
BO1 BO2 BO3 BO4 IO1 IO2
OVERVOLTAGE
PROTECTION
SOA PROTECTION
OUTPUT
ON/OFF
SHORT-CIRCUIT
PROTECTION
3
GND
15 14 13
PILOT
CANCEL
FF FF
PILOT
19k 19k DET
2
10 11 12
19
PD
20 AIN
21 AOUT
22
Vssa
13
IFIN
Q1
2 V
O
R1
R2