Uniwill 340S2, Service Manual

Page: 40 / 88

Chapter 4 System Disassembly
340S2 40 Rev : B
LM358 LM358 ADM1021
93C46 74HCT4066 74LVC244
74LVC14 74LVC14 74LVC14
74LVC32 74LVC32 74LVC32
74LVC08 9424 MAX708
U23
AS2951_SO8
Vout
1
SENSE
2
SHDN
3
GND
4
ERROR
5
TAP
6
F B
7
Vin
8
U21
AS2951_SO8
Vout
1
SENSE
2
SHDN
3
GND
4
ERROR
5
TAP
6
F B
7
Vin
8
U46
U
GND
1
IN
3
OUT
2
+
-
U32A
LM358-SO8
3
2
1
8
4
+
-
U32B
LM358-SO8
5
6
7
8
4
U33
ADM1021
NC
1
VCC
2
DXP
3
DXN
4
NC
5
ADD1
6
GND
7
GND
8
N C
9
ADD0
10
ALERT#
11
SMBDATA
12
N C
13
SMBCLK
14
STBY#
15
N C
16
U13
93C46 (CMOS_SERIALE2)
EEPROM_CS
1
CLK_625K
2
EEPROM_DI
3
EEPROM_DO
4
GND
5
NC
6
NC
7
VCC
8
U36
74LVC244
OE1#
1
I-0
2
I-1
4
I-2
6
I-3
8
I-4
17
I-5
15
I-6
13
I-7
11
OE2#
19
VCC
20
O-0
18
O-1
16
O-2
14
O-3
12
GND
10
O-4
3
O-5
5
O-6
7
O-7
9
U28
74HCT4066
1Y
1
2Y
4
3Y
8
4Y
11
4Z
10
3Z
9
2Z
3
1Z
2
1E
13
2E
5
3E
6
4E
12
VCC
14
GND
7
U6B
74LVC14
3 4
14
7
U6C
74LVC14
5 6
14
7
U8C
74LVC32
9
10
8
14
7
U6A
74LVC14
1 2
14
7
U8A
74LVC32
1
2
3
14
7
U8B
74LVC32
4
5
6
14
7