Bit Value Discrimination - Sony CCD-TRV128 Service Manual

3. Bit Value Discrimination

Bit values must be discriminated using the display data of the ad-
justment remote commander for the following items. Us the table
below to discriminate if the bit value is "1" or "0".
Display on the adjustment remote commander
Page
(Example) If the remote commander display is "8E", bit value from
bit 7 to bit 4 can be discriminated from the column A,
and those from bit 3 to bit 0 from column B.
4. Switch Check (1)
Page 2 Address 81
Note: Check that the data of page: 0, address: 10 is "00".
Bit
0 POWER SW (SS-5100 block S001)
1 MODE SW (SS-5100 block S001)
2 DSPL/BATT INFO SW (CF-5100 block S001)
3 EJECT SW (SS-5100 block S002)
4 CC DOWN SW (Mechanism chassis)
5
6
7
Using method:
1) Select page: 2, address: 81.
2) By discriminating the bit value of display data, the state of the
switches can be discriminated.
5. Switch Check (2)
Page 7 Address 0C
Note: Check that the data of page: 0, address: 10 is "00".
Bit
2 A/V OUT jack (SI-039 board)
3 S VIDEO jack (SI-039 board)
Using method:
1) Select page: 7, address: 0C.
2) By discriminating the bit value of display data, the state of the
switch can be discriminated.
CCD-TRV128/TRV228/TRV228E/TRV328/TRV428/TRV428E
Address
bit3 to bit0 discrimination
bit7 to bit4 discrimination
Function
Function
Display on the
adjustment
remote
commander
0
1
2
3
4
5
6
7
A 8
9
A ( A )
B ( b )
C ( C )
D ( d )
E ( E )
B
F ( F )
When bit value = 1 When bit value = 0
ON OFF
ON OFF
ON OFF
ON OFF
ON (DOWN) OFF (UP)
When bit value = 1
Used
Used
6-43
Bit values
bit3 bit2 bit1
or or or
bit7 bit6 bit5
0 0 0
0 0 0
0 0 1
0 0 1
0 1 0
0 1 0
0 1 1
0 1 1
1 0 0
1 0 0
1 0 1
1 0 1
1 1 0
1 1 0
1 1 1
1 1 1
When bit value = 0
Not used
Not used
bit0
or
bit4
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1