Sanyo CE27LD6-B Service Manual page 12

IC BLOCK DIAGRAMS
IC603 L6598D
OP AMP
5
OPOUT
6
OPIN-
7
OPIN+
Ifmin
4
Rfmin
Ifstart
2
Rfstart
3
VCO
Cf
IC1801 / IC1802 PCA9534PW
A0
A1
A2
SCL
SDA
VDD
Vss
N2WKD/YKD
V
S
12
+
-
DETECTION
V
REF
V
REF
CONTROL
LOGIC
PCA9534
INPUT
FILTER
POWER-ON
RESET
NOTE: ALL I/Os ARE SET TO INPUTS AT RESET
UV BOOTSTRAP
DRIVER
DEAD DRIVING
TIME LOGIC
Iss
1
Css
8-BIT
2
I C/SMBUS
CONTROL
WRITE pulse
READ pulse
-12-
V
16
BOOT
15 HVG
HVG
DRIVER
14
OUT
LEVEL
Vs
SHIFTER
11 LVG
LVG DRIVER
10
GND
Vthe1
+
8
- EN1
Vthe2
+
9
- EN2
I/O0
I/O1
I/O2
INPUT/
I/O3
OUTPUT
PORTS
I/O4
I/O5
I/O6
I/O7
Vcc
LP
FILTER
SU01783
H.V.
C
BOOT
LOAD
INT