TM
11-5820-92l-402
POWER AMPLIFIER AM-6545/GRC-193 TEST POINT/lNDICATOR/OPERATION CORRELATION
Illustration
Test Point or
Receive
Test Point or
Transmit
Test Point or
Illustration
Receive
Transmit
Test Point or
Tune Mode Indication
Indicator
Location
Mode
Mode
Indicator
Indicator
Mode
Indicator
Location
Mode
Notes
L
Reference
Indication
L
Name
Indication
Ref. Desig.
Assembly Name
Notes
Reference
Indication
Indication
Name
Ref. Desig.
Assembly Name
MIN
MAX
+26.5 Vdc
+26.5 Vdc
+0.1 Vdc
+0.1 Vdc
T/R Line
lA1TP1
Meter Board
+8.7 Vdc
Regulated
+8.7 Vdc
1A7A2TP1
+8.7 Vdc
+8.7 Vdc
ALC Module
PWB Assy
9.3V
Assy
+1.6 Vdc
RF ALC
1A7A2AR1
-11.5 Vdc
-11 Vdc
1A7A2TP2
-11.5 Vdc
+0.1 Vdc
+0.1 Vdc
+0.1 Vdc
Gnd After
+10V all modes during warmup
DC Control
+0.1 Vdc
1A2TP1
Pin 1
Warmup
PWB Assy
+2.0 Vdc
IP A L C
+1.5 Vdc
1A7A2AR1
-11.5 Vdc
1A7A2TP3
-11 Vdc
-12 Vdc
+10V if filament fault
-11 Vdc
Fil Fault
-12.5 Vdc
-12 Vdc
1A2TP2
Pin 9
0
+1.4 Vdc
HF ON
0
1A2TP3
+1.4 Vdc
+6.7 Vdc
Det. RF Level
0 to +5 Vdc
0
0
1A7A2TP4
+0.56 Vdc
+0.56 Vdc
Fil Sense
+0.56 Vdc
1A2TP4
+0.56 Vdc
Threshold
Error Output B
-2.6 Vdc
Tune Detector
0
1A10A1TP1
0
-1.4 Vdc
Module Assy
-1.4 Vdc
Error Output A
1A10A1TP2
0
0
-2.4 Vdc
1A3R3
Over Voltage
System Control
PWB Assy
Adjustment
Cathode Level
-2.2 V d c
1A10A1TP3
0
0
-3.5 Vdc
+0.02 Vdc
+0.02 Vdc
+0.02 Vdc
+4.7 Vdc 0.5 Vdc if connected to coupler
Cplr Keyline
1A3TP1
+0.02 Vdc
Plate Level
0
1A10A1TP4
0
-5 Vdc
-3.5 Vdc
+1.4 Vdc
+26 Vdc
RT Keyline
+1.4 Vdc
1A3TP2
+26 Vdc
0 Vdc
RF IN from RT
1.5 Vac PP
RF Driver
1A11A1TP1
0 Vac
0 Vac
2.5 Vac PP
Key Interlock
0
0
+3.8 Vdc
1A3TP3
+3.8 Vdc
Module Assy
+0.1 Vdc
-0.33 Vds
Second Stage
1A11A1TP2
+0. 1 Vdc
+0.5 Vdc
0
L MAX F o r c e
0
1A3TP4
0
+9.8 Vdc
Detail "B"
Output
+5 Vdc
+5 Vdc
PA ON
+5 Vdc
1A3TP5
+5 Vdc
+0.75 Vdc
First Stage
+0.75 Vdc
-0.75 Vdc
1A11A1TP3
+0.75 Vdc
Output
+1.45 Vdc
+1.45 Vdc
1A3TP6
Over Temp
+1.45 Vdc
+1.45 Vdc
+0. 1 Vdc
Second Stage
+0.27 Vdc
1A11A1TP4
+0.42 Vdc
+0.1 Vdc
Detail "C"
+0.18 Vdc
+0.18 Vdc
+25.5 Vdc
Tune
1A4TP1
Tune Control
+26.5 Vdc
Output
PWB Assy
0
L MAX F o r c e
1A4TP2
o
o
+9. 2 Vdc
Inverter
Static Power
0.02 Vac
0.02 Vac
1A12A1TP1
0.02 Vac
0 Vdc 0 to 1.5 Vac
0.02 Vac
PA Ready
1A4TP3
+0. 15 Vdc
+5.2 Vdc
+0. 15 Vdc
+5.8 Vdc
Inverter Assy
Tune Enable
1A4TP4
0
+9 Vdc
0
+9 Vdc
Inverter
1A12A1TP2
15 Vac
15 Vac
15 Vac
15 Vac
Tune Time Latch
1A4TP5
0
0
0
+9 Vdc
Output
Cplr Ready
1A4TP6
0
Inverter
0
0
15 Vac
0
1A12A1TP3
15 Vac
15 Vac
15 Vac
Output
+10 Vdc
Tune Start
+0.6V when tune button pressed
+9 Vdc
1A4TP7
+10 Vdc
+9.5 Vdc
+9 to 0
High Voltage
1A4TP8
1A13A1T1
0 Vac
L MIN F o r c e
1A13A1TP1
4 Vac
0 Vac
0
AR1 & AR2 pin 7
0
3.4 Vac
0
Primary
Module Assy
1A5TP1
Servo Amplifier
+12 Vdc
Servo Bias
+12 Vdc
+12 Vdc
+12 Vdc
Sawtooth 6 msec long
0
SENSE
2.9 Vdc
-2 Vdc
1A13A1TP2
0
PWB Assy
+0.81 Vdc
+0.81 Vdc
+6.3 Vdc
1A5TP2
Servo Enable
+6.1 Vdc
+18 Vdc
Output "B"
Input to 1A5Q11 & Q12 bases (LMIN)
1A5TP3
-1.14 Vdc
-1.20 Vdc
-1.14 Vdc
Enable
+18.5 Vdc
1A5TP4
-1.2 Vdc
Output "A"
Input to 1A5Q7 & Q8 bases (LMAX )
-1.1 Vdc
+0.1 Vdc
Enable
+19 Vdc
1A5TP5
+19.5 Vdc
+19.5 Vdc
+19.5 Vdc
+19.5 Vdc
1A5P1-15
Output "A"
1A5TP6
+0.3 Vdc
+26 Vdc
L MAX d r i v e
0
0
Output "B"
+0.2 Vdc
1A5TP7
0
+18 Vdc
0
L MIN d r i v e
Figure 3. Servicing Diagram (Sheet 5 of 5)
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