Sony BKDS-PA3291, Руководство по обслуживанию

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3-3(E)
BVS-A3232
3-4. Test Mode
Use the TEST mode to perform the following tests.
The normal switching functions are disabled while the TEST mode is running.
m
• When S7 is set to the TEST mode, make sure to either press the reset switch (S2) or turn the power off
once and back on again.
• Set S7 to 0 and press S2 to return to switching operation.
S7 Setting Test Refer to Section
8 LED test 3-4-1
9 DIP switch and rotary switch test 3-4-2
A – –
B Crosspoint test B 3-4-3
C S-BUS (REMOTE 1) test 3-4-4
D RS-232C (REMOTE 3) test 3-4-5
E RS-422A (REMOTE 2) test 3-4-6
F Buzzer test 3-4-7
3-4-1. LED Test
Use this test to check the following LEDs:
• Error No. indicator on the CPU-94 board (ND1)
• CPU indicators on the CPU-94 board (D15, D17 to D22,
and D24)
• Status indicator (D5) on the DP-251 board
Set S7 to 8 and press S2 to start the test.
Check that the LEDs light in the specified pattern shown
below.
S7 Setting: 8
(Press S2 after changing the setting.)
3-4. Test Mode
8
0
4
C
S7
Status indicator (D5)
DP-251 board
CPU-94 board
CPU indicators
S7
S2
ND1