Sony SX-M100, Руководство по обслуживанию

Страница: 58 / 155

4-5(E) SX-M700
4-4. SELF DIAGNOSTICS OF CPU-188
BOARD (OPTION: SXA-120)
4-4-1. Checking the CPU
1
Bit switch settings
2
Supply the power (+5V). If the power is already
supplied, press RESET switch S2 to start the check.
Check the CPU in the following order:
D1 to D4 turn on as the above steps proceed. If an error
occurs, D1 to D4 blink and the check terminates. If no
errors occur, LEDs D1 to D8 turn on.
4-4-2. Checking the SIO
1
Bit switch settings
2
Set bit 1 and 2 to check the corresponding port 0 to 3 as
follows:
BIT 1 BIT 2 Port Selected
OFF OFF Port 0
ON OFF Port 1
OFF ON Port 2
ON ON Port 3
1 2 3 4 5 6 7 8
O
N O
N
1. ROM CHECK
2. UPPER RAM CHECK
3. LOWER RAM CHECK
4. E
2
PROM CHECK
1 2 3 4 5 6 7 8
O
N O
N
3
Short the input and output of the port to be checked.
4
Supply the power (+5V). If the power is already
supplied, press RESET switch S2 to start the check.
5
If no errors occur, LEDs D1 to D4 corresponding to
ports 0 to 3 turn on. If an error occurs, the LED
blinks.
4-4-3. Factory Default Settings
The following information is displayed on the LEDs as
lower significant bit settings. Check the factory default
settings when installing the SX-M700 and SX-M100 on
site.
Port 0
Port 1
Port 2
Port 3
CN4 pin 1
CN2 pin 17
D-sub, 9 pin
(female pin 3)
D-sub, 9 pin
(female pin 8)
D-sub, 9 pin
(male pin 2)
D-sub, 9 pin
(male pin 4)
D-sub, 9 pin
(male pin 7)
CN4 pin 2
CN2 pin 19
D-sub, 9 pin
(female pin 4)
D-sub, 9 pin
(female pin 9)
D-sub, 9 pin
(male pin 3)
D-sub, 9 pin
(male pin 6)
D-sub, 9 pin
(male pin 8)
BIT 1 BIT 2 Settings and Display
ON OFF Communication with SX-M700/M100
CPU is OK D8 turns on
Communication with SX-E120
CPU is OK D7 turns on
Communication with SX-8300
CPU is OK D6 turns on
OFF OFF Number of all D/C units connected to
the SX-M700 or M100 + SX-E120