Tait TM9100 Service Manual

TM9100 Service Manual Frequency Synthesizer Fault Finding 207
© Tait Electronics Limited August 2005
Figure 9.11 Measurement points for the VCO and related circuitry in VHF radios
+5V DEC
PIN 1 OF
D5004
PIN 1 OF
D5004
PIN 3 OF
Q5003
PIN 3 OF
Q5003
PIN 2 OF
Q5001
PIN 2 OF
Q5001
PIN 2 OF
D5004
PIN 2 OF
D5004
TX PORT
RX PORT
SIGNAL TYPES
RF ANALOG CLOCK DIGITAL
PLL
LOOP
FILTER
AND
SUMMER
FILTERING
OF SUPPLY
FOR VCO
CIRCUITRY
FREQUENCY SYNTHESIZER
PLL FEEDBACK
VCO
BUFFER
AMPLIFIER
AND
COUPLER
D5004
5 V SWITCH
TR SWITCH
SYN TX LO
SYN RX LO1
TRANS- MITTER
RECEIVER
DIGITAL
BOARD
DIG SYN TR SW DIG SYN EN
INVERTER
VIA TO CHECK
DIG SYN TR SW
VIA TO CHECK
DIG SYN TR SW
R103
R544
JUNCTION OF
C541 AND R547
JUNCTION OF
C541 AND R547
+3V0 AN
L506
3V
SUPPLY

Tait TM9100 Specifications

General

Brand	Tait
Model	TM9100
Category	Radio
Language	English