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D i a g r a m s
D i a g r a m s
D i a g r a m s
MAIN CONTROL UNIT – INTERCONNECTION DIAGRAM PAGE 2
Internal
Connectors Cont'd
J14/P1
PC
J8
RXD (104)
2
B21
TXD (103)
3
B22
GND (102)
A22
5
RTS (105)
B20
7
CTS (106)
8
A25
PC
PRINTER
P9
RXD (104)
B17
2
TXD (103)
B18
3
DTR (108)
4
A15
GND (102)
A18
5
DSR (107)
B15
6
RTS (105)
B16
7
Printer
CTS (106)
8
A16
A04
A03
A01
A02
A30
B30
A29
B29
A28
B28
A
90 – 276 VAC
B
GND
47 – 400 Hz
C
6.3 A slow
–
A
11 – 34 VDC
+
B
ON
OFF
2/96
Saturn Bp Portable – Technical Manual
Access & Control Sub-system (see also diagram page 1)
RS-232
Serial
Interface
RS-232
UART
Serial
Interface
CH. D
UART
CH. C
+12V
Optocoupler
UART
CH. B
Optocoupler
Main Control Unit Board Cont'd
Latch
&
Buffer
SCC2
* TX1 LOCK
BWCTRL1
BWCTRL2
BWCTRL3
SYNTDAT
SYNTCLK
TXSLCT
* TX2 LOCK
* LO LOCK
LOSLCT
Clock
Data
* OSC_LOCK
(* STATUS
function
message)
CPU
Power detector
* RX SIGNAL
-TXOFF
Memory
ANT_TX
SCC3
ANT_RX
J17 A12 B12 A13 B13 A14 B13
P1
15-16
13-14
11-12
1
2
AC & DC/DC Power Board
MCU Interconnection Diagram Cont'd
To/from DSP (see diagram page 1)
RF Sub-system
Tracking filter
Up-converter
~18.3
~18.3
(PLL)
(PLL)
MHz
MHz
15.84 MHz
System
clock
Local
1450 -
oscillator
1484 MHz
LOREF
(PLL)
x1
X-tal
15.84 MHz
osc.
x4
63.36 MHz
AGC
BW=3 MHz
Amp.
~12 MHz
~75 MHz
Tx supply
Antenna Control Modem
Lowpass
5 MHz
Transmitter
Filter
10 MHz
Highpass
Receiver
Filter
A39
A38
A11
A12
A09
A08
A07
A06
B05 A05 A03-04 A01-02
B09
B08
B07
B06
3
4
5
6
19-20 21-22 23-24 25-26 27-28 29-30 31
1626.5 -
1660.5 MHz
Combiner/
splitter
1525 -
1559 MHz
B03-04 B01-02
32
33-36 37-40
25
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