Bit Value Discrimination; Switch Check (1) - Sony Handycam CCD-TRV3E Service Manual

3. Bit value discrimination

Bit values must be discriminated using the display data of the
adjusting remote commander for the following items. Use the table
below to discriminate if the bit value is "1" or "0".
Remote
controller
bit 3 or
display
bit 7
0 0
1 0
2 0
3 0
4 0
5 0
6 0
7 0
An
8 1
9 1
A (A) 1
B (b) 1
C (c) 1
D (d) 1
Bn
E (E) 1
F (F) 1
(Example) If the remote commander display data is "8E", bit
values from bit7 to bit4 can be discriminated from
column A, and those from bit3 to bit0 from column
B.
Bit value
bit 2 or bit 1 or bit 0 or
bit 4
bit 6 bit 5
0 0 0
0
0 1
0 1 0
0 1 1
1 0 0
1 0 1
1
1 0
1 1 1
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1
0
1 1 1

4. Switch check (1)

Page 3
Bit Function
0 VTR MODE SW
1 CAM MODE SW
2 START/STOP SW
3 EJECT SW
4 CC DOWN SW
5
6
7
Using method:
1) Select page: 3, address: 43.
2) By discriminating the bit value of display data, the state of the
switches can be discriminated.
5-39
Address 43
When bit value=1 When bit value=0
OFF ON
OFF ON
OFF ON
OFF ON
OFF ON