Service manual

DV-L70U
9-30
9-24. IC3202 BR93L46F EEPROM
Terminal
Terminal name In/Output Function
2 VCC – Power
7 GND – All input/output reference voltage, 0V
3 CS Input Tip select input
4 CLK Input Sirial clock input
5 DIN Input Start bit, operation code, address and serial data input
6 OCNT Output Serial data output, READY/BUSY internal status indication output
• Block Diagram
C S
S K
D I
D O
Dummy bit
Instruction
register
Data
resistor
R/W
Amp.
Address
buffer
Address
Decoder
Instruction decode control
clock generation
Wave voltage
detection
Write
inhibition
High voltage
generation
bit
EEPROM
Aray
1,024
6bit
6bit
16bit
16bit
9-25. IC3205 S875045B
Voltage detection
circuit
Phase fault
protection circuit
Delay circuit
1
4
2
3
5
V
OUT
V OR
V IN
V SS
C D
Voltage
regulator
Pin No. Terminal name Remarks
1V
OUT Output terminal of voltage regulator
2 Vss GND terminal
3C
D External capacitor connection terminal for
delay of voltage detection circuit
VPF Power-off circuit input terminal
SENSE
Voltage monitor terminal of voltage detection
circuit
4VOR Output terminal of voltage detection circuit,
Nch open drain
5V
IN Positive power input terminal