Removing/Installing The Front Panel; Settings Of Switches And Controls On Boards; At-141 Board - Sony HDCU-900 Series Installation And Maintenance Manual

1-4. Removing/Installing the Front Panel

1. Fully loosen the two screws (with drop-safe) and
remove the front panel in the direction of the arrow.
Screws (with drop-safe)
2. Reattach the front panel in reverse order of step 1.
HDCU-900 IMM
Front panel

1-5. Settings of Switches and Controls on Boards

1-5. Settings of Switches and Controls
on Boards

1-5-1. AT-141 Board

9 8 7 6
S1
S103 S104 S102
S111 S124 S106
S112 S121 S127
S125 S123 S129
S105
S603 S107
S110
S120
S108
S101
S129
S131
S602
S601
RV601
AT REFERENCE H PHASE
REF GEN
POWER /1.001 REMOTE LOCAL
IN LOCK
HD BB
Switches
n
Do not change the settings of the switches describes
"Factory use only".
. S1 (232C SEL)
Set the signal mode of the TRUNK LINE connector on
the rear panel.
AT : AUX mode
DPR : TRUNK mode
Factory setting : DPR
1-4. Removing/Installing the Front Panel
5 4 3 2
RV402
S401
RV401
S402
S301
S302
S502
S303
S404
S504
S122
S115
S113
S114
S126
MIC LEVEL CCU TALK 2 WIRE
INCOM
LEVEL CANCEL
NORM NORM
SELECT
MIN MIN
PGM SIDE 1 2
FINE ENG PROD
CH-1 CH-2
PRIVATE
MIX TONE
AT-141 board (A side/panel side)
1-11 (E)
1
A
B
C
D
E
F
G
H
J
K
L
M