Sony FD Mavica MVC-FD75, Service Manual

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5-24
3. Switch Check (1)
Page 3 Address 23
Bit Function When bit value=1 When bit value=0
0
XPOWER SW
OFF ON
(PK-59 board S702)
1
XCAM/PLAY SW
PLAY CAMERA
(PK-59 board S708)
2
SHUTTER SW
OFF ON
(RL-58 board)
3
XSHUTTER LOCK SW
OFF ON
(RL-58 board)
4
FLOPPY DISK IN SW
IN OUT
(FDD UNIT)
Using method:
1) Select page: 3, address: 23
2) By discriminating the bit value of dispaly data, the state of the
switches can be discriminated.
2-3. SERVICE MODE
1. Setting the Test Mode
Page F Address 10
Data Function
00 Normal
01 Forced CAMERA mode power ON
02 Forced PLAY mode power ON
• Before setting the data, select page: 0, address: 01, and set data:
01.
• For page F, the data set is recorded in the non-volatile memory
by pressing the PAUSE button of the adjusting remote com-
mander. In this case, take note that the test mode will not be
exited even when the main power is turned off.
• After completing adjustments/repairs, be sure to return the data
of this address to “00”, and press the PAUSE button of the ad-
justing remote commander.
Select page: 0, address: 01, and set data: 00.
2. Bit Value Discrimination
Bit values must be discriminated using the display data of the ad-
justing remote commander for following items. Use the table be-
low to discriminate if the bit value is “1” or “0”
Display on the Bit values
Adjusting bit3 bit2 bit1 bit0
remote or or or or
commander bit7 bit6 bit5 bit4
0 0 0 0 0
1 0 0 0 1
2 0 0 1 0
3 0 0 1 1
4 0 1 0 0
5 0 1 0 1
6 0 1 1 0
7 0 1 1 1
8 1 0 0 0
9 1 0 0 1
A(
A
) 1 0 1 0
B(
b
) 1 0 1 1
C(
c
) 1 1 0 0
D(
d
) 1 1 0 1
E(
E
) 1 1 1 0
F(
F
) 1 1 1 1
Example:
If “8E” is displayed on the adjusting remote com-
mander, the bit values for bit7 to bit4 are shown in the
A
column, and the bit values for bit3 to bit0 are shown
in the
B
column.
0 : 00 : 00
Page
bit7 to bit4 discrimination
bit3 to bit0 discrimination
Address
Display on the adjustilng remote commander
B
A