Ic Block Diagram - ViewSonic E70FSB-2 - E 70F+SB - 17" CRT Display Service Manual

IC BLOCK DIAGRAM

IC101
1
LED G VSYNC
2
LED R HSYNC
3
NC
4
RESET
5
VDD
6
V3.3 KEY B
7
GND KEY A
8
OSCO
9
OSCI HSYNCO
10
NC VSYNCO
11
NC
12
ISDA
13
ISCL
14
DEG
15
KEY
16
WP
17
V/D DSCL
18
NC DSDA
19
NC
20
NC
21
HE MUTE B+
IC102 M24C08-WBN6
First byte of instruction
with RW = 0 already
decoded by the device
ViewSonic Corporation
42
41
40
BRI
39
ROT
38
OFF
37
36
35
NC
34
33
32
CS0
31
CS1
30
CS2
29
ABL
28
NC
27
NC
26
25
24
P/S
23
HL
22
WRITE Cycle
in Progress
START Condition
DEVICE SELECT
with RW = 0
ACK
NO
Returned
Next
Operation is
NO
Addressing the
Memory
ReSTART
STOP
YES
YES
Send Address
and Receive ACK
NO START
Condition
DATA for the
WRITE Operation
Continue the
WRITE Operation
93
Confidential – Do Not Copy
YES
DEVICE SELECT
with RW = 1
Continue the
Random READ Operation
E70f-5_E70fB-5_E70fSB-5