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4 - 16
4-5 PA200W BOARD ADJUSTMENTS
IDLING
CURRENT
(For driver)
( For final
amplifier)
ADJUSTMENT
ADJUSTMENT
ADJUSTMENT CONDITION
MEASUREMENT
VALUE
POINT
UNIT
LOCATION
UNIT
ADJUST
1
2
3
• Preset R301, R407 and R410 on
the PA200W unit to max. CCW.*
• [MIC] gain
: max. CCW*
• Main display frequency
: 14.100 MHz
• Mode
: USB
• Apply no audio signals to [MIC]
connector.
• Transmitting
PA200W C o n n e c t a D C
ammeter between W1
and EP501.
1.0 A higher from the
previous value of the
adjustment.
1 . 0 A h i g h e r f r o m
the previous value of
the adjustment.
1.0 A higher from the
previous value of the
adjustment.
PA200W
R301
R407,
R425
R410,
R426
*CCW: Counter clockwise