Read Panasonic WJ-SX550 Service Manual Supplement online
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290 DPRAM1 (IC1) Data Check on Control Board
(between the Microprocessor IC3 on the CPU
Board)
8
Enter the Instruction Code 290 by the 10-key or
Instruction Code 90 by the SW2.
8
Press the GO key or press the SW3.
8
Action performed: Write the Data 00(H) to FF(H) to the
specific address, and then check these Data after reading
them, then transmit the Data “STX 290 OK ETX” or “STX
290 NG ETX” to the RS-232C line.
291 DPRAM1 (IC2) Data Check on the Control
Board (between the Microprocessor IC3 on
the CPU Board)
8
Enter the Instruction Code 291 by the 10-key or
Instruction Code 91 by the SW2.
8
Press the GO key or press the SW3.
8
Action performed: Write the Data 00(H) to FF(H) to the
specific address, and then check these Data after reading
them, then transmit the Data “STX 291 OK ETX” or “STX
291 NG ETX” to the RS-232C line.
292 DPRAM1,2 Address Check on the Control
board (between the Microprocessor IC3 on
the CPU Board)
8
Enter the Instruction Code 292 by the 10-key or
Instruction Code 92 by the SW2.
8
Press the GO key or press the SW3.
8
Action performed: Check by the Marching Method, and
then transmit the Data “STX 293 OK ETX” or “STX 293
NG ETX” to the RS-232C line.
293 DPRAM Interface Check on the Control
Board (between the Microprocessor IC3 on
the CPU Board)
8
Enter the Instruction Code 293 by the 10-key or
Instruction Code 93 by the SW2.
8
Press the GO key or press the SW3.
8
Action performed: Request the Check No. 316 to the
Microprocessor IC6 on the Control Board, then transmit
the Data “STX 293 OK ETX” or “STX 293 NG ETX” to the
RS-232C line after receiving the acknowledge signal from
the Microprocessor IC6.
294 TEST1 Modular Check on Control Board
8
Connect the Test Modular Cable between the TEST1
Modular and the TEST2 Modular of the Control Board of
the Matrix Switcher WJ-SX550.
8
Enter the Instruction Code 294 by the 10-key or
Instruction Code 94 by the SW2.
8
Press the GO key or press the SW3.
8
Action performed: Transmit the Data “STX RS485 ETX”
from the TEST1 Modular and receive this Data by the
TEST2 Modular, then transmit the Data “STX OK ETX”
from the TEST2 Modular after receiving by the CPU
Board.
8
Then transmit the Data “STX 294 OK ETX” or “STX 294
NG ETX” to the RS-232C line after confirming that the
Data “STX OK ETX” has been received from the TEST1
Modular.
8
After completing this check disconnect the Test Modular
Cable.
295 Board Count Check I on the Control Board
8
Factory use only.
296 Board Count Check II on the Control Board
8
Factory use only.
299 Forced Release Check (return to Idle mode)
8
Execute the 299 Instruction from the Personal Computer
or the 299 Instruction by 10-key or press the ACK RESET
key of the WV-CU550, or set the 0F(H) Instruction by the
SW2 and press the SW3 if the Self Check Function is
done by the WJ-SX550 alone for a return to the Idle
mode.
8
Return to the Idle mode from any one of the Check Items
is executed.
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