IC102
EEPROM
KEYPAD
LS101
IC107
AMPLIFIER
IC106
PRE-AMP
TR117,124
AGC
TR111-114
VOLUME
SWITCH
SQUELCH
GATE
TR119
TONE.Rx
TxDTMF
BEEP
µP
IC101
IC105
GATE
ARRAY
S103
LCD101
MODULE
LCD
ARDATA
RxAUDIO
DATA
`A'
`A'
D0-D3
BEC
S101
CANCEL
TAG10790-1
SQUELCH
IC106
PRE-AMP
MIC+
TR120,121
AGC
TR126
PRE-AMP
TR122
SP.EN
MIC.SIG
SPEECH3V
RPR 563
TM1195 Issue 1
Page 3 - 11
Figure 5: Decoder Board - Block Diagram
Gate Array (IC105)
47.
Gate Array IC105 is responsible for the following functions:
a)
Detects operation of the Cancel button and passes the data to microprocessor
IC101.
b)
Resets IC101 under various conditions.
c)
Pre-conditions incoming data (detects preamble, etc.).
d)
Controls the Battery Economy Circuit (BEC) line.
e)
Generates the beep drive waveform.
f)
Drives the Alert LED D101 (D101 is also driven at reduced brightness via TR116
when the unit is on charge).
Содержание RPR 563
Страница 41: ...RPR 563 TM1195 Issue 1 Page 3 5 Figure 2 Radio Board Receiver Block Diagram...
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Страница 109: ...TM1195 Issue 1 AL2 April 1999 Figure 1 Radio Board Circuit Diagram Sheet 1 of 6 Page 7 3 4...
Страница 110: ...TM1195 Issue 1 AL2 April 1999 Figure 3 Radio Board Circuit Diagram Sheet 3 of 6 Page 7 7 8...
Страница 111: ...NOTE SLEEVING MUST BE FITTED TO D101 LEADS...
Страница 112: ...RPR 563 TM1195 Issue 1 Page 7 27 Figure 13 Battery Pack Circuit Diagram...
Страница 113: ...TM1195 Issue 1 AL2 April 1999 Figure 14 Decoder 0201 0874 Circuit Diagram Sheet 1 of 2 Page 7 29 30...
Страница 114: ...TM1195 Issue 1 AL2 April 1999 Figure 15 Decoder 0201 0874 Circuit Diagram Sheet 2 of 2 Page 7 31 32...
Страница 115: ...TM1195 Issue 1 AL2 April 1999 Figure 16 Decoder 0201 0874 Component Location Side 1 Page 7 33 34...
Страница 116: ...TM1195 Issue 1 AL2 April 1999 Figure 17 Decoder 0201 0874 Component Location Side 2 Page 7 35...