[1000mp] my Yaesu VL-1000
Ragnar Otterstad
[email protected]
Mon, 30 Dec 2002 11:45:33 +0100
I am unable to turn off the RF unit from it�s front panel. Is there a hidden
switch somewhere I need to change ?
73 HNY Rag LA5HE
If you turn off the VL-1000 RF unit, but leave the VP-1000 power supply
powered up, the ANT1 relay (RL7001) on the ANT-SW Unit board is held operated
by default, thus maintaining the receive signal path via the ANT1
socket. The INPUT 1/2 selection relay (RL4003)on the Divider Unit board is
non-operated, maintaining the signal path to the INPUT 1 socket.
If you power down the VP-1000, RL7001 releases and opens the receive signal
path. You will need to leave the VP-1000 powered up to keep the receive
signal path open. This has the added advantage that the auto-routining
feature will exercise all relays in the system for contact-wetting
(cleaning) purposes.
This information was derived from the VL-1000 Service Manual. Please check
out my Quadra page:
http://www.qsl.net/ab4oj/quadra/quadra.html
Happy New Year to all. Best 73,
Adam, VA7OJ/AB4OJ
North Vancouver, BC, Canada
http://www.qsl.net/ab4oj/