SERVICE MANUAL
Document No
Date of Origin
Date of REV
51-L-DSR004
98-10-21
PAGE REV.
0
PAGE
19 /102
S-00-005(96.03.27)
REV.1
4-11-2-4.
output level
:
70 dB
§Å ¡¾
5 dB
§Å
4-11-2-5.
video modulation
depth
:
80
¡¾
8 %
4-11-2-6.
default
output channel
:
68
4-11-3.
Additional RF output
4-11-3-1.
frequency
range
:
47 - 862 MHz
4-11-3-2.
output Voltage
:
9
¡¾
1 V
4-11-3-3.
maximum
current
:
100mA
4-11-3-4.
carrier
frequency
:
4.5 - 10 MHz
4-11-3-5.
signal level "0" (p-p)
:
0.5 V
4-11-3-6.
signal level "1" (p-p)
:
2
¡¾
0.15 V
4-11-3-7.
input impedance
:
>1K
§Ù
(at carrier
frequency)
4-12.
RS232
port
STB provides
9 pin RS232 serial port for communication
with PC. The monitoring
of the STB and the command
delivering
from PC is done via hyper terminal.
Moreover,
G.729
audio data can be delivered
in real time to G.729 decoder
and to STB memory via the EIA232A
(RS232)
port.
4-13.
ICAM
ICAM contains
all descrambling
and CA functions
supported
by NDS (News Digital
Systems).
ICAM uses MBM87F2011
chip to capture
PID for EMM and ECM streams,
a descrambler,
a smart card interface,
an interface
to main microcontroller,
and NDS security
functions.
4-14.
Smart
Card Int e r f a c e
The STB uses the Philips
Semiconductors
TDA 8004 to implement
the electrical
interface
to the NDS conditional
access smart card slot The smart card reader
interface
shall be subject
to approval
by NDS.
4-15.
Second
Smart
Card (MO N D E X )
The Second Smart card interface
uses the Philips
Semiconductors
TDA 8006. Mondex
card reader is capable
of reading
cards entered
chipside
facing upwards,
and
chipside
facing downward
The second smart card slot supports
T=0 and T=1
protocols.
