Magnum
S9, Magnum S-9NX
Documentation Project
CBTricks.com
PLL
Alignment
See Alignment
Locations
SETTINGS |
CONNECTION |
ADJUST |
ADJUST FOR |
10.240
MHz PLL REFERENCE: |
Connect Frequency counter to IC5 Pin 4. |
|
Check
for 10.2400MHz ±200 Hz. If tolerance is beyond this, replace |
VCO
BUFFER: |
Connect scope to TP3 (top bare lead of R74) |
L18 |
Adjust for max. RF (0.80V p-p typical). |
Connect scope to L22 secondary (bare lead of L50 ). |
L22 |
Adjust for max. RF (2.0V p-p typical) |
|
VCO: |
Connect
DC voltmeter to TP2 (top bare |
L17 |
Adjust
for 3.20 VDC ±0.1 Vdc. |
PLL
OFFSET OSCILLATOR: |
Connect Frequency Counter to TP3 (top bare lead of R74). |
L19 |
AM: Adjust for 16.2700MHz ±20 Hz. |
L20 |
USB: Adjust for 16.2725MHz ±20 Hz. |
||
L21 |
LSB: Adjust for 16.2675MHz ±20 Hz. |
||
FREQUENCY
COUNTER: |
|
C105 on Counter PCB |
Adjust for 28.000Mhz on display. |
Disclaimer: Although the greatest care has been taken while compiling these documents,
we cannot guarantee that the instructions will work on every radio presented.