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5-2 PLL ADJUSTMENTS
ADJUSTMENT
ADJUSTMENT CONDITION
REFERENCE
1
• Display freq.
FREQUENCY
1
• Display freq.
VXO
FREQUENCY
2
• Display freq.
3
• Display freq.
4
Repeat steps 1–3 several times.
5
• Display freq.
6
• Display freq.
7
• Display freq.
8
Repeat steps 5–7 several times.
1ST LO
1
• Display freq.
PLL LOCK
VOLTAGE
2
• Display freq.
3
• Display freq.
4
• Display freq.
5
• Display freq.
6
• Display freq.
• Display freq.
7
8
• Display freq.
1
• Display freq.
2ND LO
PLL LOCK
VOLTAGE
2
• Display freq.
3
• Display freq.
LCT
1
• Display freq.
Any frequency of the 1st LO and
TERMINAL
2nd LO are locked.
MEASUREMENT
UNIT
: 800.0000 MHz
MAIN
: 100.0040 MHz
MAIN
: 100.0025 MHz
: 100.0000 MHz
: 800.0000 MHz
MAIN
: 800.0025 MHz
: 800.0040 MHz
: 265.7000 MHz
MAIN
: 383.2000 MHz
: 383.3000 MHz
: 483.2000 MHz
: 483.3000 MHz
: 633.2000 MHz
: 633.3000 MHz
: 799.9000 MHz
: 265.0000 MHz
MAIN
: 266.0000 MHz
: 267.0000 MHz
:
MAIN
5 - 3
LOCATION
Connect a frequen-
256.0000 MHz
cy counter to check
point CP4.
Connect a frequen-
10.2510 MHz
cy counter to check
point CP6.
10.2525 MHz
10.2550 MHz
Connect a frequen-
10.2500 MHz
cy counter to check
point CP6.
10.2525 MHz
10.2540 MHz
Connect a digital
1.5–5.5 V
multi-meter or oscil-
loscope to check
13.5–17.7 V
point CP1.
2.5–6.5 V
10.5–14.5 V
1.0–5.0 V
12.5–17.7 V
5.0–9.0 V
14.0–19.2 V
Connect a digital
2.4–6.4 V
multi-meter or oscil-
loscope to check
2.5–6.5 V
point CP3.
2.3–6.3 V
Connect a digital
Less than 1.5 V
multi-meter or oscil-
loscope to check
point CP5.
VALUE
ADJUSTMENT
Use the adjust-
ment
software.
(see page 5-7)
Use the adjust-
ment
software.
(see page 5-7)
Use the adjust-
ment
software.
(see page 5-7)
Verify
Verify
Verify
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