Fostex DV40 Service Manual page 18

Service Manual
• Error on DIGITAL input and output circuitry (CH 1/2)
1
1
2 2
∞ ∞
60 60 50 50 42 42 34 34 28 28
3 3
4 4
• Error on DIGITAL input and output circuitry (CH 3/4)
1
2
∞
60 50 42 34 28
3
4
4-4. Memory Initialize
Executing this menu initializes the setting in each SETUP menu and MEMORY (time information of Last Play, Last
Record In / Out and Memory # 04 ~ 99). To do so, press the [ENTER/YES] key while "?" flashes.
4-5. Flash ROM
There is a Flash ROM Card PCB prepared for the CPU Module and Ether Card PCBs. The Flash ROM Card PCB is
used if something wrong happens while updating the software (e.g. power shutdown, blackout). The Flash ROM Card
PCB allows to boot up DV40, copy the system software in the Flash ROM Card PCB to the Flash ROM on the CPU
Module and Ether Card PCBs using this "Flash ROM" Service Menu. Furthermore, you can rewrite the program inside
the Flash ROM on the Flash ROM Card PCB. In other words, by rewriting the program, only one Flash ROM PCB can
work for both the CPU Module and Ether Card PCBs. Refer to the following procedures.
18
DIGITAL DIGITAL
BIT BIT
FS FS
kHz kHz
2018 2018 12 12 8 8 6 5 4 3 2 1 0 OL 6 5 4 3 2 1 0 OL
FORMAT FORMAT
BWF
BWF
DIGITAL
BIT
FS
kHz
2018 12 8 6 5 4 3 2 1 0 OL
FORMAT
BWF
SETUP
1
2
∞
60 50 42 34 28
3
4
SETUP
1
2
∞
60 50 42 34 28
3
4
• Error on PS2 keyboard circuitry
24 24 1
96 192
2
∞
CLOCK
CLOCK
60 50 42
-INT- -INT-
3
4
• Error on PS2 mouse circuitry
24
1
96
2
∞
CLOCK
60 50 42
-INT-
3
4
DIGITAL
BIT
FS
kHz
2018 12 8
6 5 4 3 2 1 0 OL
FORMAT
BWF
DIGITAL
BIT
FS
kHz
2018 12 8 6 5 4 3 2 1 0 OL
FORMAT
BWF
DIGITAL
34 28 2018 12 8 6 5 4 3 2 1 0 OL
DIGITAL
34 28 2018 12 8
6 5 4 3 2 1 0 OL
24
48
CLOCK
-INT-
24
48
CLOCK
-INT-
BIT
24
FS
96
kHz
CLOCK
-INT-
FORMAT
BWF
BIT
24
FS
96
kHz
CLOCK
-INT-
FORMAT
BWF
DVD