Galaxy
DX Radios DX98VHP
Documentation Project
CBTricks.com
PLL
Alignment
See Alignment
Locations
| SETTINGS | CONNECTION |
ADJUST
|
ADJUST FOR |
| 10.240 MHz PLL REFERENCE:
RX Mode, AM, Band E, Ch. 1 |
Connect Frequency counter to IC3 Pin 4. |
|
Check for 10.2400MHz ± 200 Hz. If tolerance is beyond this, replace X1 (10.240MHz). |
| VCO VOLTAGE:
RX Mode, AM, Band E, CH. 1 |
Connect DC voltmeter to TP2 |
L14
|
Adjust for 2.75 VDC ±0.1 |
| VCO OUTPUT: RX Mode, AM, Band E, CH. 1 |
Connect scope to TP3 |
L15
|
Adjust for max. RF |
| PLL MIXER OSCILLATOR:
RX Mode, AM, Band E, CH. 1 Set Fine and coarse clarifier control to 12 oclock position. Set clarifier switch to RX/TX |
Connect Frequency Counter to TP3. |
L20
|
AM: Adjust for
16.2700MHz ±20 Hz. |
|
L21
|
USB: Adjust for
16.2725MHz ±20 Hz. |
||
|
L22
|
LSB: Adjust for
16.2675MHz ±20 Hz. |
||
| TX OFFSET FREQUENCY:
Set mode to LSB RX |
Connect Frequency Counter to TP3. |
VR7
|
Key TX; Adjust for
16.2675MHz ±20 Hz. |
| FREQUENCY COUNTER:
Set mode to AM RX Band E, CH.1 |
VC201
on Ch Sel PCB (EPT99HP20A)
|
Adjust
VC201 on channel selector PCB for correct reading on frequency 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.