Sanyo DC-TS760, Service Manual

Page: 25 / 50

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