Switch Check (1); Switch Check (2); Led Check - Sony MVC-FD85 Service Manual

6. Switch Check (1)

Page 2 Address 43
Bit Function
0 XPOWER SW
(PK-52/50 board S703)
1 XCAM/PLAY SW
(PK-52/50 board S708)
2 SHUTTR SW
3 XSHUTTER LOCK SW
(ZOOM/RELEASE block)
4 DISK IN SW (FDD unit)
5
6
7 XSTILL/MOVIE SW
(PK-52/50 board S710)
Note: PK-52 board: MVC-FD85
PK-50 board: MVC-FD90
Using method:
1) Select page: 2, address: 43.
2) By discriminating the bit value of display data, the state of the
switches can be discriminated.

7. Switch Check (2)

Page 2 Address 54 to 56
Using method:
1) Select page: 2, address: 54 to 56.
2) By discriminating the display data, the pressed key can be
discriminated.
Address
00 to 12
54
(KEY AD0)
(IC404 uk)
55 CONTROL DOWN
(KEY AD1) (PK-52/50 board)
(IC404 ul) (S701)
56 CONTROL RIGHT
(KEY AD2) (PK-52/50 board)
(IC404 i;) (S701)
Note: MVC-FD90 model only.

8. LED Check

Page 2 Address 06
Using method:
1) Select page: 2, address: 06, and set the bit value of Bit1 to "1".
2) Check that all LED except for the ACCESS LED are lit.
3) Select page: 2, address: 06, and set the bit value of Bit1 to "0".
When bit value = 1
OFF
PLAY
OFF
OFF
IN
MOVIE
13 to 3A 3B to 62
CONTROL UP DISPLAY
(PK-52/50 board) (PK-52/50 board)
(S701) (S702)
CONTROL LEFT CONTROL SET
(PK-52/50 board) (PK-52/50 board)
(S701) (S701)
Bit1
When bit value = 0
ON
STILL or MOVIE
ON
ON
OUT
STILL or PLAY
Data
63 to 87 88 to B3
VOLUME + VOLUME –
(PK-52/50 board) (PK-52/50 board)
(S704) (S706)
FLASH PROGRAM AE
(PK-52/50 board) (PK-52/50 board)
(S705) (S707)
5-43E
B4 to D5 D6 to FF
FOCUS MANUAL FOCUS AUTO
(MF block) (MF block)
(S001)Note1 (S001)Note1
MACRO No key input
(PK-52/50 board)
(S711)
LCD BACKLIGHT LCD BACKLIGHT
OFF ON
(PK-52/50 board) (PK-52/50 board)
(S709) (S709)