Section 6 Adjustment Procedures - Icom IC-2GA Service Manual

SECTION 6 ADJUSTMENT PROCEDURES
6-1 PLL ADJUSTMENT
{1} AC POWER SUPPLY
Dc
VOLTMETER
я Output voltage : 13.2 V DC.
я Current capacity : ЗА ог тога
АС POWER
SUPFLY
FREQUENCY
COUNTER
з Frequency range : 0.1— 180 MHz
* Fraquency accuracy = 41 ppm or better
+ Sensitivity : 100 mV or bettar
хо СРІ Lose couple
to dummy load.
(2) DC VOLTMETER
з Input impadance : БО КОС or better
to BATTERY
TERMINAL
То separate the RF UNIT from tha MAIN UNIT, sae the diagram
on p. 6-1 (fold-out).
REFERENCE = Connect а 50 C) dummy load. Loose couple tha frequency
FREQUENCY = Frequency: 148.00 MHz counter to the dummy load.
* Tranamit
RF AND VCO UNITS
Lroz
[under aluminum tapa)
LOCK VOLTAGE
ADJUSTMENT
g LP
== == ш с ш ü кош E
СР1 (gold-plated
rectangle ta tha laft
of C81)
=J ерен REFERENCE FREQUENCY
ADJUSTMENT
FREQUENCY
ADJUSTMENT