Viagra
Board Version "B" Installation
Documentation Project
CBTricks.com
The following describes the installation procedure for adding the Viagra "B" channel modification PCB to the Galaxy DX949,DX959 and DX2547. Although this accessory can be added to any EPT06960Z Main PCB See note at bottom of page. First you will need
to insall the Viagra "B" Preparing the Radio for the Mod. 1. Fully check out the radio and be sure everything works before starting this mod!
3. Using the
provided screw, mount the Viagra "B" PCB through the open hole
in the chassis, just behind the channel selector location. Use the hole
which is closer to the 4. Follow the diagram below. |
Radio Alignment
SETTINGS |
CONNECTION
|
ADJUST
V-B |
ADJUST
RADIO |
ADJUST
FOR
|
Remove
TP7-TP9 Jumper PCB.
|
||||
Set
radio to channel 20 Set mode to AM RX Mode Set clarifier to center Set Viagra - B to MID band |
On Radio connect freq. counter to PLL IC3 pin 8 |
-
-
|
VC1
|
10.2400MHz |
Same as above | On V-B connect voltmeter to TP4 |
VC2
|
-
-
|
3.5VDC |
Same as above | On V-B connect freq. counter to TP5 |
VC1
|
-
-
|
15.360MHz |
Set radio to AM TX Mode | Same as above |
-
-
|
VR7 |
For same freq shown
above.
|
Set radio to AM TX Mode | On Radio, connect freq. counter to TP5 |
-
-
|
L23
|
10.69500MHz |
Set radio to USB TX Mode | On Radio, connect freq. counter to TP6 |
-
-
|
L24
|
10.69250MHz |
Set radio to LSB TX Mode | Same as above |
-
-
|
L23 |
10.69750MHz |
Replace
TP7-TP9 Jumper PCB.
|
||||
Note:
There are other Viagra "B" boards for radios with the following
VCO mixer frequencies. Red Dot (sticker on the case) 15.810MHz Green Dot (sticker on the case) 14.910MHz |
Disclaimer: Although the greatest care has been taken while compiling these documents,
we cannot guarantee that the instructions will work on every radio presented.