4-8
MAINTENANCE
ORBAN MODEL 8300
Word Len.............................................................................................. 20
Dither..................................................................................................Out
FORMAT ...........................................................................................AES3
f)
Navigate to
S
ETUP
/
S
TEREO
E
NCODER
. Set the
ITU412-9
control to
O
FF
.
g)
Navigate to
S
ETUP
/
T
EST
.
Set controls as follows:
MODE ........................................................................................... Bypass
NOTE:
Bypass defeats all compression, limiting, and program equaliza-
tion, but retains the selected pre-emphasis (either 50
s or 75
s).
BYPASS GAIN ....................................................................................0 dB
TONE FREQ....................................................................................400 Hz
TONE LVL........................................................................................ 100%
h)
Press the
N
EXT
button.
i)
Set controls as follows:
TONE CHAN........................................................................................ L+R
PILOT....................................................................................................ON
2.
Test the power supply
A)
If the power supply is entirely dead and the fuse is not blown, verify that the
primary winding of the power transformer is intact by measuring the resis-
tance of the power supply at the IEC AC line connector.
For 115-volt operation, the resistance should be approximately 7.6
.
For 230-volt operation, the resistance should be approximately 27
.
Number of Red Flashes
Problem With
1 +
unregulated
supply
2
+15V or –15V
3
+5V or –5V
4 +5V
Digital
5
Analog
Digital ground connection broken
6
DSP A +3.3V supply
7
DSP B +3.3V supply
8 CPU
+3.3V
supply
9 CPU
+2.5V
supply
Table 4-1: Decoder Chart for Power Supervisor
B)
The green LED power indicator on the lower left of the front panel monitors
the DC power supply outputs. If one or more power supply voltages are out of
tolerance, red flashes will report them according to Table 4-1. If there are
multiple values out of tolerance, they are reported one after another in a
continuous loop, with one green flash indicating the beginning of each count.
You can monitor power supply voltages at connector J7 on the power
supply board (see Section 6 for schematic and parts locator drawing).
When one faces the connector, the voltages can be found on the pins in
Summary of Contents for 8300J
Page 1: ...Operating Manual OPTIMOD FM 8300 Digital Audio Processor Version 2 1 Software...
Page 7: ...Operating Manual OPTIMOD FM 8300 Digital Audio Processor Version 2 1 Software...
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Page 247: ...OPTIMOD FM DIGITAL TECHNICAL DATA 6 29...
Page 254: ...6 36 TECHNICAL DATA ORBAN MODEL 8300 CPU Module...
Page 260: ...6 42 TECHNICAL DATA ORBAN MODEL 8300 8300 RS232 BOARD PARTS LOCATOR...
Page 262: ...6 44 TECHNICAL DATA ORBAN MODEL 8300 8300 POWER SUPPLY PARTS LOCATOR...
Page 264: ...6 46 TECHNICAL DATA ORBAN MODEL 8300 8300 I O BOARD PARTS LOCATOR...
Page 270: ...6 52 TECHNICAL DATA ORBAN MODEL 8300 DSP BOARD PARTS LOCATOR DRAWING 32170 000 14...
Page 278: ...6 60 TECHNICAL DATA ORBAN MODEL 8300 8300 DISPLAY BOARD PARTS LOCATOR...
Page 279: ...OPTIMOD FM DIGITAL TECHNICAL DATA 6 61 DISPLAY BOARD...