Hi Herve,
after having problems with my TS850 and some TL922 (five different 922's
locked temporary my rig to deafness and fuzzy noise...), the last time, the
receiver never recovered from the fault; btw, if someone can explain to me
why my TS850S can't work with TL922 but it is fine with other power
amplifiers...
I found that D31, MI204, was faulty and I substituted it with the "poor man
PIN diode", the 1N4007, and all seems to work fine like before.
If you will find D3 broken, you can try to substitute it with 1N4007...
Ciao and 73
Guido, ik2bcp / iu2r / ab9dg
----- Original Message -----
From: "Hervé BIRAUD" <f5hry@wanadoo.fr>
To: "CQ Contest" <cq-contest@contesting.com>
Sent: Saturday, November 22, 2003 10:56 PM
Subject: [CQ-Contest] TS850 question
Hello guys,
I am battling with my TS850.
I have a RX sensitivity problem, which may come
from the PIN diode ref D3 in the RF (just after the
switched attenuator and low pass filter).
The diode is a MI204 from Mitsubishi ... Of course,
quite uneasy to find !
Is there any possible remplacement ? Or where could
I find a MI204 ?
BTW, I know that there is a mailing list for the 850 owners.
As I have got 3 of them (...), I would appreciate to subscribe.
Any possible help ?
Vy 73 de Herve F5HRY (FY5KE contest team)
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