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4 - 14
RXPLL-B UNIT ADJUSTMENTS–Continued
RX
SENSITIVITY
(50 MHz)
IF THROUGH
(50 MHz)
ADJUSTMENT
ADJUSTMENT
ADJUSTMENT CONDITION
MEASUREMENT
VALUE
POINT
UNIT
LOCATION
UNIT
ADJUST
1
1
• SUB display frequency
: 50.020 MHz
• Mode
: USB
• Pre-amp. 2
: ON
• Connect an SSG to [ANT1] connec-
tor and set as;
Frequency : 50.0215 MHz
Level
: 0.32 µV* (–117 dBm)
Modulation : OFF
• Receiving
• SUB display frequency
: 50.020 MHz
• Mode
: USB
• Connect an SSG to [ANT1] connec-
tor and set as;
Frequency : 64.555 MHz
Level
: 50 mV* (–13 dBm)
Modulation : OFF
• Receiving
Rear
panel
Front
panel
Connect an AC milli-
volt meter to [EXT SP]
jack with 8
Ω
load.
S-meter
Maximum audio level
Minimum level
RX
PLL-B
RX
PLL-B
L1222
C1265
*This output level of a standard signal generator (SSG) is indicated as SSG’s open circuit.
Summary of Contents for IC-7800
Page 1: ...SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST 1 BOARD LAYOUTS 65 VOLTAGE DIAGRAM 67 Dec 2009 ...
Page 79: ...SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST 1 BOARD LAYOUTS 60 VOLTAGE DIAGRAM 64 Feb 2009 ...
Page 157: ...SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST 1 BOARD LAYOUTS 57 VOLTAGE DIAGRAM 59 Aug 2008 ...
Page 245: ...SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST 1 BOARD LAYOUTS 57 VOLTAGE DIAGRAM 59 Jul 2008 ...
Page 333: ...THE TRANSCEIVER i7800 SERVICE MANUAL S 14015HZ C1 2 Mar 2006 ...
Page 555: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 14015HZ C1 2 C 2004 2006 Icom Inc ...