Walt,
I had my TR7A do this to me - it turned out that a violet wire that ran from the DR7 to one of the bandswitch wafers was not making good contact. A bit of DeOxit put it right.
Maybe you will be so lucky.
Win W5JAG
From: "LEWIS WALTER" <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Subject: [drakelist] Help with unlocked TR7 Date: Sun, 25 Jan 2004 08:39:01 -0500
I just purchased a used TR7. When I power it up, all of the display lights come on, but the dsiplay reads something like 96Mhz, with some flickering up/dwn a couple of herts. Turning the band switch and using up/dwn buttons has no effect. The store button does store the (erroneous) freq
I can't tune in any signals, but all of the rest of the rig seems to work - ie af and rf gain, filter switches, etc.
I would guess that either the synthesiser isn't locking, or some other osc isn't wrkng. From looking at this bulletin board, it seems that reseating a card might wrk. How do i identify the right card, and how is it pulled without damaging something?
I don't have the service manual yet. Anything I can quickly do to check this
out? Is it usually an easy problem to fix, or is it something drastic?
It is a fairly late model TR7, around 10,000 s/n
Also, how do I pull the ckt boards to reseat them. Can the edge connectors be cleaned? Finally, anything in general I should be checking to get the rig in overall shape.
Your help would be greatly appreciated!
73
Walt
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