Description Of Internal Indicators; Ipm-81 Board - Sony BDX-M1000 Installation Manual

2-2. Description of Internal Indicators

2-2. Description of Internal Indicators

2-2-1. IPM-81 Board

H
G
F
E
D
C
B
A
D1611
1 2 3
n
The addresses on the board are shown by ( ) marks.
D201 to D203 (A-4, 5) (green),
D204, D205 (A-5) (red) : Status indicator
Indicates the result of the self-diagnostics at just after the
power on.
D201 D202
2-2 (E)
D204
D1612
D203 D205
D1620
D202
D1601
D201
D1610
4 5 6 7
A Side (Component side)
D203 D204 D205
. If an error is detected :
Both of D204 and D205 light up, and D201 to D203
indicate the description of error.
D201-1 : Lights up when DRAM error occurs.
D201-2 : Lights up when Dual-port RAM error occurs.
D201-3 : Unassigned
D201-CH1, D202, D203 :
Lights up when control error occurs at input
channel. (Refer to the figure for the correspon-
dance of the indicators and the channels.)
n
When any error is detected, the operation of CPU will
come to stop.
. If an error is not detected (CPU starts up
properly) :
D201 to D204 indicate the following information.
D201-1 : CPU Operation indicator
Blinks at intervals of two seconds during CPU
operating.
D201-2 : Communication indicator
Lights up when this board communicates with
the CPU on the SY-244 board.
D201-3 : Unassigned
D201-CH1, D202, D203 : Channel Status indicator
Indicate the state of input channel on the basis
of S201-5 to -7 settings. (Refer to the Section
1-8-1)
D204 : Channel Error indicator
When S201-5 is set to OFF :
Blinks when some error occurs at the input
circuit.
When S201-5 is set to ON :
Lights up when the channel overflowed at
input buffer exists.
D205 : Unassigned
BDX-M1000