Sanyo DVD-SL25 Service Manual page 28

IC BLOCK DIAGRAM & DESCRIPTION
IC801 S524A40X21-SCT0(EEPROM)
VCC 8
GND
4
WP 7
START
SCL
6
STOP
SDA 5 LOGIC
LOAD
COMP
DEVICE
ADDRESS
COMPARATOR
LOAD
A
2 3
R/W
DATA WORD
A 2
1
ADDR/COUNTER
A
1
0
D
IN
D
OUT
IC881 KRX101U (Switching Application)
5
Q1
1 2
IC802 PST3627U(System Reset)
V
DD
GND
PIN No.
1
2
3
4
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SERIAL
FN
H.V. PUMP/TIMING
CONTROL
LOGIC
DATA RECOVERV
INC
EEOROM
V DEC SERIAL MUX
D /ACK
OUT
LOGIC
4
Q2
3
2
Vref
1
PIN NAME FUNCTIONS
GND GND Pin
V V Pin / Voltage Detect Pin
DD DD
C Capacitor Connect Pin with Delay
D
OUT Reset Signal Output Pin
IC851 PQ070XZ01Z(Regulator)
DC INPUT(Vin) 1
ON/OFF
2
CONTROL (Vc)
IC859 NC7SZ157P6
(UHS 2-Input Non-Inverting Multiplexer)
Connection Diagram
I 1
1
GND 2
I 3
0
(Top View)
Pin Descriptions
Pin Name
I , I
0 1
S
Z
R
D
3
C
D
INTERNAL EQUIVALENT CIRCUIT
Refer to BLOCK DIAGRAM
- 27 -
3 DC OUTPUT(Vo)
EXCLUSIVE IC
OUTPUT
4
VOLTAGE
ADJUST (Vadj)
5
6 S
1
5 Vcc
0
4 Z
Description
Data Inputs
Control Inputs
Output
4
OUT