GATE
ARRAY
µ
P
EEPROM
LOW
BATTERY
DETECTOR
IC7
CLOCK
XL4
+3V
CLOCK
XL3
IF FILTER/
AMPLIFIER
FL1, FL2, IC1
AMP AND
DETECTOR
IC1
AGC
NETWORK
AUDIO
AMP
TR1, TR2, TR10
DATA
FILTER
TR11, TR12,
TR31, TR29
INCOMING IF FROM FRONT
END BOARD
BEEP DRIVER
TR24, TR20
‘ON’ ICON
DRIVER
TR18
LED DRIVER
TR17
LCD DRIVER
AND DISPLAY
VIBRATE
DRIVER
TR18, TR8
+3V
BATT+
LOUD
SPEAKER
+1.5V (BATT+)
+3V
BEC SIGNAL
+5V
DATA AMP
IC1
IC2
IC3
+3V
S2
OFF SWITCH
IC4
ABSENCE
INTERFACE
CONTACTS
GATE
ARRAY
µ
P
EEPROM
LOW
BATTERY
DETECTOR
IC7
CLOCK
XL4
+3V
CLOCK
XL3
IF FILTER/
AMPLIFIER
FL1, FL2, IC1
AMP AND
DETECTOR
IC1
AGC
NETWORK
AUDIO
AMP
TR1, TR2, TR10
DATA
FILTER
TR11, TR12,
TR31, TR29
INCOMING IF FROM FRONT
END BOARD
BEEP DRIVER
TR24, TR20
‘ON’ ICON
DRIVER
TR18
LED DRIVER
TR17
LCD DRIVER
AND DISPLAY
VIBRATE
DRIVER
TR18, TR8
+3V
BATT+
LOUD
SPEAKER
+1.5V (BATT+)
+3V
BEC SIGNAL
+5V
DATA AMP
IC1
IC2
IC3
+3V
S2
OFF SWITCH
IC4
ABSENCE
INTERFACE
PSG/10442/1
RPR 550IS Series
Page 3 - 10
TM1188 Issue 1
Figure 7: Main Board Functional Block Diagram
RPR 550IS MAIN BOARD
27.
The main board, shown in block diagram form in Figure 7, contains the following:
a) IF, Detector and Speech circuits
b) Decoding circuits
c) LCD and Alert generation drive circuits
d) Function control switches
e) Power supply circuits
Summary of Contents for RPR 551IS
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Page 70: ...RPR 550IS Series Page 4 2 TM1188 Issue 1 INTENTIONALLY BLANK...
Page 77: ...PSG 10444 1 RPR 550IS Series TM1188 Issue 1 Page 5 7 Figure 2 Case Removal...
Page 125: ...TM1188 Issue 1 AL2 Oct 98 Figure 4 RPR 552IS Radio Board Circuit Diagram Page 7 9 10...
Page 126: ...TM1188 Issue 1 AL2 Oct 98 Figure 10 RPR 550IS Main Board Circuit Diagram Radio Page 7 21 22...
Page 127: ...TM1188 Issue 1 AL2 Oct 98 Figure 11 RPR 550IS Main Board Circuit Diagram Radio Page 7 23 24...