Tait TM8110 Service Manual

TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) 343
© Tait Electronics Limited June 2006
Figure 12.7 Measurement and test points for diagnosing faults in the biasing of the PAs and PA
driver
PIN
SWITCH
AND LPF
R336R347
DIREC-
TIONAL
COUPLER
PAs
BUFFER AMPLIFIER BUFFER AMPLIFIER
POWER CONTROL
DRIVER
EXCITER
BIAS
LIMITER
SHAPER
AND
LEVEL
SHIFTER
SHAPER
AND
LEVEL
SHIFTER
SHAPING
FILTER
FRE-
QUENCY
SYNTHE-
SIZER
CDC TX DRV BIAS CDC TX FIN BIAS1 CDC TX FIN BIAS2 CDC TX PWR CTL TX FWD PWR TX REV PWR
CODEC
AND AUDIO
CIRCUITRY
SIGNALTYPES
RF ANALOG
SET PWR
TEST POINT
SET PWR
TEST POINT
DRV
TEST POINT
DRV
TEST POINT
PIN8OF
IC303
PIN 8 OF
IC303
PIN9OF
IC303
PIN 9 OF
IC303
PIN 10 OF
IC303
PIN 10 OF
IC303
PIN5OF
IC303
PIN 5 OF
IC303
FIN1
TEST POINT
FIN1
TEST POINT
FIN2
TEST POINT
FIN2
TEST POINT
PWR
TEST POINT
PWR
TEST POINT
PIN 14 OF
IC301
PIN 14 OF
IC301
PIN8OF
IC301
PIN 8 OF
IC301
PIN1OF
IC301
PIN 1 OF
IC301
GATES OF
Q309, Q310
GATES OF
Q309,
Q310
GATE OF
Q306
GATE OF
Q306

Tait TM8110 Specifications

General

Brand	Tait
Model	TM8110
Category	Radio
Language	English