4 - 5
<Viewing from the BOTTOM side>
MAIN UNIT
PLL UNIT
RF UNIT
L6037
L6023
L6028
L6032
R6071
L6041
L61
REFERENCE SIGNAL LEVEL
REFERENCE SIGNAL LEVEL
(CHECK POINT)
L61
L62
J81
L61
L61
CP301
CP401
C208
C454
C228 C258 C278
C5788 C558
C528
C508
L61
CP601
L61
L61
L834
J831
J831
L61
R14
R4
R16
CP1
R67
R65
L61
L61
L3503
R3520
R1211
R1227
CP1201
R1262
R1267
R1211
R1255
CP1253
L3602
R3216
“REF”
C5
L61
J3701
C3006
L61
L61
J6001
C6076
R6043
L61
C1238
L1553
L1211
L1011
C1036
L61
J201
J1651
VCO-A LOCK VOLTAGE
(CHECK POINT)
VCO-A LOCK VOLTAGE
VCO-B LOCK VOLTAGE
VCO-B LOCK VOLTAGE
(CHECK POINT)
LPL B LOCK VOLTAGE
LPL B LOCK VOLTAGE
(CHECK POINT)
R2 LO LEVEL
(CHECK POINT)
R2 LO LEVEL
R2 LO LEVEL
IDLING (FINAL AMP)
IDLING (FINAL AMP)
IDLING (DRIVER)
IDLING (DRIVER)
IDLING (PRE-DRIVER)
IDLING (PRE-DRIVER)
(CHECK POINT)
TUNER PRESET
TUNER PRESET
(CHECK POINT)
TX PEAK
TX TOTAL GAIN
TX HIGH POWER
(HF BAND)
TX HIGH POWER
(50 MHz BAND)
AM CARRIER POWER
Id-APC
(GND POINT)
RX SENSITIVITY
IMAGE RESPONSE
IMAGE RESPONSE
(CHECK POINT)
SCOPE DISPLAY
SCOPE DISPLAY
SCOPE GAIN
SCOPE ATTENUATION
SCOPE DISPLAY
SCOPE DISPLAY
SCOPE DISPLAY
SCOPE DISPLAY
(SSG CONECT POINT)
SCOPE DISPLAY
TX PEAK
RX SENSITIVITY
(Sub band)
MIXER BALANCE
(CHECK POINT)
RX SENSITIVITY
(Sub band)
RX SENSITIVITY
(Main band)
MIXER BALANCE
(Main band)
RX SENSITIVITY
(Main band)
MIXER BALANCE
(Sub band)
TX PEAK
(CHECK POINT)
4-3 PLL UNIT ADJUSTMENT (continued)
ADJUSTMENT ADJUSTMENT CONDITION OPERATION
ADJUSTMENT
POINT
VALUE
R2 LO LEVEL 1 • Frequency : 14.100 MHz
(Main band)
• Mode : USB
• Receiving
1) Connect a Spectrum Analyzer to
J831.
2) Adjust the LO signal level.
L834
Maximum
level
for
free
by
RadioAmateur.eu
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