Multitone FLA 872 Technical Manual page 55

Radio paging receivers
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DEVICE
COLLECTOR
TR1
3.00
TR2
-
TR3
1.4
TR4
1.4
C5
0.19dc
R1/C4
3.00
R35
1.49dc
IC402 pin9
1.49dc
IC5
3.00 (pin 1)
IC6
1.4 (pin 1)
STEP
1
2
3
TM1205 Issue 2
Table 5.3: Decoder Board DC Levels
BASE
3.00
3.00
-
-
2.2 V p-p
3.0V p-p
3.0V p-p
3.00 (pin 2)
3.00 (pin 2)
Table 5.4: Decoder Board Test Sequence
TEST POINT
R23
VDD
R35
38.4kHz POCSAG Clock
R1
4.19MHz Microprocessor Clock (every 500ms)
EMITTER
1.4
Battery Disconnect Monitor
1.4
Backlight Driver
-
Vibrate Enable
-
Vibrate Motor Drive
4ms wide
XL2
4.19MHz
CLKO 38.4kHz
XL403 38.4kHz (Radio Board)
0 (pin 3)
Reset
1.4 (pin 5)
VDD Supply
REMARKS
TLA 852/FLA 872
REMARKS
Page 5 - 15

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