Sony CCD-TRV66PK, Service Manual

Page: 128 / 158

5-52
3. Bit Value Discrimination
Bit values must be discriminated using the display data of the
adjustment remote commander for the following items. Us the table
below to discriminate if the bit value is “1” or “0”.
(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
.
Page
Address
bit3 to bit0 discrimination
bit7 to bit4 discrimination
Display on the adjustment remote commander
Display on the
adjustment
remote
commander
0
1
2
3
4
5
6
7
8
9
A ( A )
B ( b )
C ( C )
D (
d
)
E (
E
)
F ( F )
Bit values
bit3
or
bit7
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
bit2
or
bit6
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
bit1
or
bit5
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
bit0
or
bit4
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
A
B
Bit
0
1
2
3
4
5
6
7
Function
MIC jack
AUDIO terminal
VIDEO terminal
S VIDEO terminal
When bit value = 1
MIC jack is used
Monaural
VIDEO terminal is used
When bit value = 0
Stereo
S VIDEO terminal is used
4. Input/output selection check
Page 2 Address 49
Using method:
1)
Select page: 2, address: 49.
2) By discriminating the bit value of display data, the state of the
input/output selection can be discriminated.
5. LED, LCD (display window) check
Using method:
1)
Select page: 2, address: 05, and set the bit value of Bit5 to “1”.
2) Check that all LED are lit and all segments of LCD (display
window) are lit.
3) Select page: 2, address: 05, and set the bit value of Bit5 to “0”.
Page 2 Address 05 Bit5