Andrew,
It sounds like the possibility of a bad switch. I will have to take a look
at mine and see if it can be disassembled. Perhaps some contact cleaner
would be all that is needed.
If it can not be repaired you can always use it as a T-28 single flash.
Mark
----- Original Message -----
From: "Andrew Gullen" <andrew.gullen@xxxxxxxxxxxx>
To: <olympus@xxxxxxxxxxxxxxx>
Sent: Sunday, January 26, 2003 10:41 PM
Subject: [OM] T-28 problem? Help needed
> Hi folks -
>
> I just received a T-28 twin flash as part of a lot, most of which I
wanted,
> including the T-28. I'm having a problem with it. It could be my problem
of
> the equipment's.
>
> Whether on camera (4T) or off (using Test button) I can't get the left
flash
> to fire.
> - With the selector on R, the right flash fires
> - With the selector on L or L+R, there is no flash from either
>
> When the right flash fires, the unit takes about 8 seconds to charge back
up
> again, which is a bit slow but perhaps not abnormal for this unit. When
> there is no flash the charge light comes back on immediately.
>
> Also, when there is "no flash" I can see a very, very faint flash, usually
> in both flashes but occasionally perhaps in only one. The auto check light
> shows no activity.
>
> All functions with the 4T on auto appear to be OK, including over, under,
> the auto check flickering and the VF indicator blinking.
>
> I used both fresh Duracells marked "MAR 2009" and alkaline rechargeables
for
> the tests. Same results.
>
> One other odd thing: Duracells seem to be a tight fit, and I can't get a
> Duracell into the rightmost battery slot (enough to close the cover, it
does
> make contact). My alkaline rechargeables are OK (they are 0.3mm shorter).
> Haven't tried any other types yet.
>
> The fact that the right flash doesn't fire on L+R leads me to suspect the
> switch/contacts. I unplugged the connector - everything seemed clean and
OK,
> but there isn't much to see. The very faint flash seems as though it could
> be due to electrical leakage at the switch.
>
> BTW, the seller strikes me as honest and the parcel was well packed.
>
> Any ideas? I RTFF'd and got no hits. I have to sort this out fairly
quickly.
>
> Many thanks,
> Andrew
>
>
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