Conv-Ctrl Board Adjustment - Icom IC-PW1 Service Manual

4-7 CONV-CTRL BOARD ADJUSTMENT

ADJUSTMENT ADJUSTMENT CONDITION
OUTPUT 1 • Pre-set R14 and R84 to maxi-
VOLTAGE mum counterclockwise position.
• Pre-set R79 and R89 to center
position.
LIMITTER 1 • Connect a valiable load-resistor
between W3, W4, W14, W15 and
W5, W6, W16, W17.
• Set R79 to maximum counter-
clockwise position.
2
OUTPUT 1 • Input AC voltage
VOLTAGE
LIMITTER 1 • Input AC voltage
• Connect a load-resistor between
W3, W4, W14, W15 and W5, W6,
W16, W17.
• Set R89 to maximum counter-
clockwise position.
2
NOTE:
: 100 V AC
: 100 V AC
Input above 20 A current when adjusting this item, stop the power supply and must
wait until Q1–Q3 on the ACTFIL unit are cool down.
MEASUREMENT
UNIT LOCATION
CONV- Connect a DC volt-
CTRL meter between W3,
and W6.
CONV- Connect an amme-
CTRL ter between W3,
W4, W14, W15 and
valiable load-resis-
tor.
Connect a DC volt-
meter between W3,
W4, W14, W15 and
W5, W6, W16, W17.
CONV- Connect a DC volt-
CTRL meter between W3
and W6.
CONV- Connect an amme-
CTRL ter between W3,
W4, W14, W15 and
valiable load-resis-
tor.
Connect a DC volt-
meter between W3,
W4, W14, W15 and
W5, W6, W16, W17.
4 - 12
ADJUSTMENT
VALUE
UNIT
45 V CONV-
CTRL
52 A Variable
resistor
Point just before the CONV-
output voltage drops. CTRL
40 V CONV-
CTRL
35 A Variable
resistor
Point just before the CONV-
output voltage drops. CTRL
POINT
ADJUST
R14
load-
R79
R84
load-
R89