Service Mode; Setting The Test Mode; Bit Value Discrimination; Emergency Memory Address Of Flash Unit - Sony MVC-FD85 Service Manual

2-3.

SERVICE MODE

1. Setting the Test Mode

Page D Address 10
Data
00 Normal
01 Forced STILL mode power ON
02 Forced PLAY mode power ON
03 Forced MOVIE mode power ON
• Before setting the data, select page: 0, address: 01, and set data:
01.
• For page D, the data set is recorded in the non-volatile memory
by pressing the PAUSE button of the adjustment remote
commander. 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
adjustment 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
adjustment remote commander for following items. Use the table
below to discriminate if the bit value is "1" or "0".
Display on the adjustment remote commander
Page
Display on the
adjustment bit3
or
remote
commander bit7
0 0
0
1
2 0
0
3
4 0
5 0
6 0
7 0
A 8 1
9 1
A
A ( ) 1
B ( b ) 1
c
C ( ) 1
D ( d ) 1
E
E ( ) 1
B
F ( F ) 1
Example: If "8E" is displayed on the adjustment remote commander, 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.
Function
Address
bit3 to bit0 discrimination
bit7 to bit4 discrimination
Bit values
bit2 bit1 bit0
or or or
bit6 bit5 bit4
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

3. Emergency Memory Address of Flash Unit

Page D
Data
00 No error
04 Flash unit emergency
Using method:
1) When emergency occurs in the flash unit, the data
corresponding to the error is written in the address
Note: When replacing the flash unit, initialize this data.
Initializing method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: 67, set data: 00, and press the PAUSE
button of the adjustment remote commander.
3) Select page: 0, address: 01, and set data: 00.
5-41
Address 67
Function