2-20
DNW-A75/A75P
2-11. Function of LEDs on Circuit Boards
The locations of the LED indicators of
SDI-41 board (suffix -11 and -13) and
shown in the following figures.
DM-89 board
LED No. Name Color Description Normal state
D902 ADJUST Amber Usually lights for scores of milliseconds at intervals of about one second. Blinks
The blinking interval is inverted when the DM-89 board is in the
adjustment mode: when switch S901-No.1 on DM-89 board is set to ON.
EQ-75 board
LED No. Name Color Description Normal State
D900 — Amber Blinks during the EQ microcomputer is under normal operation. Blinks
Lights in the following cases:
. NV-RAM checksum error (when writing/reading in power-on)
. NV-RAM verify error (when saving NV-RAM)
. INNER ECC status error
. REC data parity error
. Not satisfied requirements in auto-alignment
(exclusive of failure and NG)
. Not started communications with SYSCON
D903 — Red Lights in REC mode. On/Off
D904 — Green Lights in Analog Playback mode. On/Off
(The unit automatically switches to analog playback mode and light the
indicator when the cassette is ejected.)
TBC-23A board
LED No. Name Color Description Normal state
D200 TBC Amber Lights once a second when TBC microcomputer is under normal Blinks
condition.
TBC-23A board
D200
DM-89 board
D902
SDI-41 board
(Suffix -14 and higher)
EQ-75 board
D902 D905
D903 D904D900
SDI-41 board (Suffix -11)
SDI-41 board (Suffix -13)
D300 to D305, D900, D901
D901D900
To Next Page
Loading...
