Multitone RPR 551IS - Page 105

TR2
SK1-2
SK1-1
RADIO BOARD
V DD
SK2 (TEST)
1
R75
4
BEC
R3
C51
AGC
DATA AMP
C56
R38
B+
1V
REG
R21
TR3
C7
SWITCHED BATTERY
TR27
R88
R37
19
18
L2
R23
C1
AUDIO
R33
TR1
R47
20
V
CC
13
+
BATT
DATA
AMP
AGC
AUDIO
PRE AMP
+
+
+
PART OF IC1
PL1-1,2
PL1-4
TR28
D14
R94
B+
R61
R22
LINKYORZ
B+
RPR 550IS Series
TM1188 Issue 1 Page 5 - 35
Figure 20: 1V and Battery Supply - Radio Circuit